Mercurial > hg
view mercurial/revset.py @ 29494:3b5389ef5cfe
perf: define util.safehasattr forcibly for Mercurial earlier than 1.9.3
Before this patch, using util.safehasattr() prevents perf.py from
being loaded by Mercurial earlier than 1.9.3 (or 94b200a11cf7),
because util.safehasattr() isn't available in such Mercurial, even
though there are some code paths for Mercurial earlier than 1.9.3.
For example, setting "_prereadsize" attribute in perfindex() and
perfnodelookup() is effective only with Mercurial earlier than 1.8 (or
61c9bc3da402).
This patch is a preparation for using util.safehasattr() safely in
subsequent patches.
This patch defines util.safehasattr() forcibly without examining
whether it is available or not, because:
- examining existence of "safehasattr" safely itself needs similar logic
- safehasattr() is small enough to define locally
| author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
|---|---|
| date | Tue, 05 Jul 2016 07:25:51 +0900 |
| parents | 9e8d258708bb |
| children | a8a5dd8986f0 |
line wrap: on
line source
# revset.py - revision set queries for mercurial # # Copyright 2010 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import heapq import re from .i18n import _ from . import ( destutil, encoding, error, hbisect, match as matchmod, node, obsolete as obsmod, parser, pathutil, phases, registrar, repoview, util, ) def _revancestors(repo, revs, followfirst): """Like revlog.ancestors(), but supports followfirst.""" if followfirst: cut = 1 else: cut = None cl = repo.changelog def iterate(): revs.sort(reverse=True) irevs = iter(revs) h = [] inputrev = next(irevs, None) if inputrev is not None: heapq.heappush(h, -inputrev) seen = set() while h: current = -heapq.heappop(h) if current == inputrev: inputrev = next(irevs, None) if inputrev is not None: heapq.heappush(h, -inputrev) if current not in seen: seen.add(current) yield current for parent in cl.parentrevs(current)[:cut]: if parent != node.nullrev: heapq.heappush(h, -parent) return generatorset(iterate(), iterasc=False) def _revdescendants(repo, revs, followfirst): """Like revlog.descendants() but supports followfirst.""" if followfirst: cut = 1 else: cut = None def iterate(): cl = repo.changelog # XXX this should be 'parentset.min()' assuming 'parentset' is a # smartset (and if it is not, it should.) first = min(revs) nullrev = node.nullrev if first == nullrev: # Are there nodes with a null first parent and a non-null # second one? Maybe. Do we care? Probably not. for i in cl: yield i else: seen = set(revs) for i in cl.revs(first + 1): for x in cl.parentrevs(i)[:cut]: if x != nullrev and x in seen: seen.add(i) yield i break return generatorset(iterate(), iterasc=True) def _reachablerootspure(repo, minroot, roots, heads, includepath): """return (heads(::<roots> and ::<heads>)) If includepath is True, return (<roots>::<heads>).""" if not roots: return [] parentrevs = repo.changelog.parentrevs roots = set(roots) visit = list(heads) reachable = set() seen = {} # prefetch all the things! (because python is slow) reached = reachable.add dovisit = visit.append nextvisit = visit.pop # open-code the post-order traversal due to the tiny size of # sys.getrecursionlimit() while visit: rev = nextvisit() if rev in roots: reached(rev) if not includepath: continue parents = parentrevs(rev) seen[rev] = parents for parent in parents: if parent >= minroot and parent not in seen: dovisit(parent) if not reachable: return baseset() if not includepath: return reachable for rev in sorted(seen): for parent in seen[rev]: if parent in reachable: reached(rev) return reachable def reachableroots(repo, roots, heads, includepath=False): """return (heads(::<roots> and ::<heads>)) If includepath is True, return (<roots>::<heads>).""" if not roots: return baseset() minroot = roots.min() roots = list(roots) heads = list(heads) try: revs = repo.changelog.reachableroots(minroot, heads, roots, includepath) except AttributeError: revs = _reachablerootspure(repo, minroot, roots, heads, includepath) revs = baseset(revs) revs.sort() return revs elements = { # token-type: binding-strength, primary, prefix, infix, suffix "(": (21, None, ("group", 1, ")"), ("func", 1, ")"), None), "##": (20, None, None, ("_concat", 20), None), "~": (18, None, None, ("ancestor", 18), None), "^": (18, None, None, ("parent", 18), ("parentpost", 18)), "-": (5, None, ("negate", 19), ("minus", 5), None), "::": (17, None, ("dagrangepre", 17), ("dagrange", 17), ("dagrangepost", 17)), "..": (17, None, ("dagrangepre", 17), ("dagrange", 17), ("dagrangepost", 17)), ":": (15, "rangeall", ("rangepre", 15), ("range", 15), ("rangepost", 15)), "not": (10, None, ("not", 10), None, None), "!": (10, None, ("not", 10), None, None), "and": (5, None, None, ("and", 5), None), "&": (5, None, None, ("and", 5), None), "%": (5, None, None, ("only", 5), ("onlypost", 5)), "or": (4, None, None, ("or", 4), None), "|": (4, None, None, ("or", 4), None), "+": (4, None, None, ("or", 4), None), "=": (3, None, None, ("keyvalue", 3), None), ",": (2, None, None, ("list", 2), None), ")": (0, None, None, None, None), "symbol": (0, "symbol", None, None, None), "string": (0, "string", None, None, None), "end": (0, None, None, None, None), } keywords = set(['and', 'or', 'not']) # default set of valid characters for the initial letter of symbols _syminitletters = set(c for c in [chr(i) for i in xrange(256)] if c.isalnum() or c in '._@' or ord(c) > 127) # default set of valid characters for non-initial letters of symbols _symletters = set(c for c in [chr(i) for i in xrange(256)] if c.isalnum() or c in '-._/@' or ord(c) > 127) def tokenize(program, lookup=None, syminitletters=None, symletters=None): ''' Parse a revset statement into a stream of tokens ``syminitletters`` is the set of valid characters for the initial letter of symbols. By default, character ``c`` is recognized as valid for initial letter of symbols, if ``c.isalnum() or c in '._@' or ord(c) > 127``. ``symletters`` is the set of valid characters for non-initial letters of symbols. By default, character ``c`` is recognized as valid for non-initial letters of symbols, if ``c.isalnum() or c in '-._/@' or ord(c) > 127``. Check that @ is a valid unquoted token character (issue3686): >>> list(tokenize("@::")) [('symbol', '@', 0), ('::', None, 1), ('end', None, 3)] ''' if syminitletters is None: syminitletters = _syminitletters if symletters is None: symletters = _symletters if program and lookup: # attempt to parse old-style ranges first to deal with # things like old-tag which contain query metacharacters parts = program.split(':', 1) if all(lookup(sym) for sym in parts if sym): if parts[0]: yield ('symbol', parts[0], 0) if len(parts) > 1: s = len(parts[0]) yield (':', None, s) if parts[1]: yield ('symbol', parts[1], s + 1) yield ('end', None, len(program)) return pos, l = 0, len(program) while pos < l: c = program[pos] if c.isspace(): # skip inter-token whitespace pass elif c == ':' and program[pos:pos + 2] == '::': # look ahead carefully yield ('::', None, pos) pos += 1 # skip ahead elif c == '.' and program[pos:pos + 2] == '..': # look ahead carefully yield ('..', None, pos) pos += 1 # skip ahead elif c == '#' and program[pos:pos + 2] == '##': # look ahead carefully yield ('##', None, pos) pos += 1 # skip ahead elif c in "():=,-|&+!~^%": # handle simple operators yield (c, None, pos) elif (c in '"\'' or c == 'r' and program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings if c == 'r': pos += 1 c = program[pos] decode = lambda x: x else: decode = parser.unescapestr pos += 1 s = pos while pos < l: # find closing quote d = program[pos] if d == '\\': # skip over escaped characters pos += 2 continue if d == c: yield ('string', decode(program[s:pos]), s) break pos += 1 else: raise error.ParseError(_("unterminated string"), s) # gather up a symbol/keyword elif c in syminitletters: s = pos pos += 1 while pos < l: # find end of symbol d = program[pos] if d not in symletters: break if d == '.' and program[pos - 1] == '.': # special case for .. pos -= 1 break pos += 1 sym = program[s:pos] if sym in keywords: # operator keywords yield (sym, None, s) elif '-' in sym: # some jerk gave us foo-bar-baz, try to check if it's a symbol if lookup and lookup(sym): # looks like a real symbol yield ('symbol', sym, s) else: # looks like an expression parts = sym.split('-') for p in parts[:-1]: if p: # possible consecutive - yield ('symbol', p, s) s += len(p) yield ('-', None, pos) s += 1 if parts[-1]: # possible trailing - yield ('symbol', parts[-1], s) else: yield ('symbol', sym, s) pos -= 1 else: raise error.ParseError(_("syntax error in revset '%s'") % program, pos) pos += 1 yield ('end', None, pos) # helpers def getsymbol(x): if x and x[0] == 'symbol': return x[1] raise error.ParseError(_('not a symbol')) def getstring(x, err): if x and (x[0] == 'string' or x[0] == 'symbol'): return x[1] raise error.ParseError(err) def getlist(x): if not x: return [] if x[0] == 'list': return list(x[1:]) return [x] def getargs(x, min, max, err): l = getlist(x) if len(l) < min or (max >= 0 and len(l) > max): raise error.ParseError(err) return l def getargsdict(x, funcname, keys): return parser.buildargsdict(getlist(x), funcname, keys.split(), keyvaluenode='keyvalue', keynode='symbol') def getset(repo, subset, x): if not x: raise error.ParseError(_("missing argument")) s = methods[x[0]](repo, subset, *x[1:]) if util.safehasattr(s, 'isascending'): return s # else case should not happen, because all non-func are internal, # ignoring for now. if x[0] == 'func' and x[1][0] == 'symbol' and x[1][1] in symbols: repo.ui.deprecwarn('revset "%s" uses list instead of smartset' % x[1][1], '3.9') return baseset(s) def _getrevsource(repo, r): extra = repo[r].extra() for label in ('source', 'transplant_source', 'rebase_source'): if label in extra: try: return repo[extra[label]].rev() except error.RepoLookupError: pass return None # operator methods def stringset(repo, subset, x): x = repo[x].rev() if (x in subset or x == node.nullrev and isinstance(subset, fullreposet)): return baseset([x]) return baseset() def rangeset(repo, subset, x, y): m = getset(repo, fullreposet(repo), x) n = getset(repo, fullreposet(repo), y) if not m or not n: return baseset() m, n = m.first(), n.last() if m == n: r = baseset([m]) elif n == node.wdirrev: r = spanset(repo, m, len(repo)) + baseset([n]) elif m == node.wdirrev: r = baseset([m]) + spanset(repo, len(repo) - 1, n - 1) elif m < n: r = spanset(repo, m, n + 1) else: r = spanset(repo, m, n - 1) # XXX We should combine with subset first: 'subset & baseset(...)'. This is # necessary to ensure we preserve the order in subset. # # This has performance implication, carrying the sorting over when possible # would be more efficient. return r & subset def dagrange(repo, subset, x, y): r = fullreposet(repo) xs = reachableroots(repo, getset(repo, r, x), getset(repo, r, y), includepath=True) return subset & xs def andset(repo, subset, x, y): return getset(repo, getset(repo, subset, x), y) def differenceset(repo, subset, x, y): return getset(repo, subset, x) - getset(repo, subset, y) def orset(repo, subset, *xs): assert xs if len(xs) == 1: return getset(repo, subset, xs[0]) p = len(xs) // 2 a = orset(repo, subset, *xs[:p]) b = orset(repo, subset, *xs[p:]) return a + b def notset(repo, subset, x): return subset - getset(repo, subset, x) def listset(repo, subset, *xs): raise error.ParseError(_("can't use a list in this context"), hint=_('see hg help "revsets.x or y"')) def keyvaluepair(repo, subset, k, v): raise error.ParseError(_("can't use a key-value pair in this context")) def func(repo, subset, a, b): f = getsymbol(a) if f in symbols: return symbols[f](repo, subset, b) keep = lambda fn: getattr(fn, '__doc__', None) is not None syms = [s for (s, fn) in symbols.items() if keep(fn)] raise error.UnknownIdentifier(f, syms) # functions # symbols are callables like: # fn(repo, subset, x) # with: # repo - current repository instance # subset - of revisions to be examined # x - argument in tree form symbols = {} # symbols which can't be used for a DoS attack for any given input # (e.g. those which accept regexes as plain strings shouldn't be included) # functions that just return a lot of changesets (like all) don't count here safesymbols = set() predicate = registrar.revsetpredicate() @predicate('_destupdate') def _destupdate(repo, subset, x): # experimental revset for update destination args = getargsdict(x, 'limit', 'clean check') return subset & baseset([destutil.destupdate(repo, **args)[0]]) @predicate('_destmerge') def _destmerge(repo, subset, x): # experimental revset for merge destination sourceset = None if x is not None: sourceset = getset(repo, fullreposet(repo), x) return subset & baseset([destutil.destmerge(repo, sourceset=sourceset)]) @predicate('adds(pattern)', safe=True) def adds(repo, subset, x): """Changesets that add a file matching pattern. The pattern without explicit kind like ``glob:`` is expected to be relative to the current directory and match against a file or a directory. """ # i18n: "adds" is a keyword pat = getstring(x, _("adds requires a pattern")) return checkstatus(repo, subset, pat, 1) @predicate('ancestor(*changeset)', safe=True) def ancestor(repo, subset, x): """A greatest common ancestor of the changesets. Accepts 0 or more changesets. Will return empty list when passed no args. Greatest common ancestor of a single changeset is that changeset. """ # i18n: "ancestor" is a keyword l = getlist(x) rl = fullreposet(repo) anc = None # (getset(repo, rl, i) for i in l) generates a list of lists for revs in (getset(repo, rl, i) for i in l): for r in revs: if anc is None: anc = repo[r] else: anc = anc.ancestor(repo[r]) if anc is not None and anc.rev() in subset: return baseset([anc.rev()]) return baseset() def _ancestors(repo, subset, x, followfirst=False): heads = getset(repo, fullreposet(repo), x) if not heads: return baseset() s = _revancestors(repo, heads, followfirst) return subset & s @predicate('ancestors(set)', safe=True) def ancestors(repo, subset, x): """Changesets that are ancestors of a changeset in set. """ return _ancestors(repo, subset, x) @predicate('_firstancestors', safe=True) def _firstancestors(repo, subset, x): # ``_firstancestors(set)`` # Like ``ancestors(set)`` but follows only the first parents. return _ancestors(repo, subset, x, followfirst=True) def ancestorspec(repo, subset, x, n): """``set~n`` Changesets that are the Nth ancestor (first parents only) of a changeset in set. """ try: n = int(n[1]) except (TypeError, ValueError): raise error.ParseError(_("~ expects a number")) ps = set() cl = repo.changelog for r in getset(repo, fullreposet(repo), x): for i in range(n): r = cl.parentrevs(r)[0] ps.add(r) return subset & ps @predicate('author(string)', safe=True) def author(repo, subset, x): """Alias for ``user(string)``. """ # i18n: "author" is a keyword n = encoding.lower(getstring(x, _("author requires a string"))) kind, pattern, matcher = _substringmatcher(n) return subset.filter(lambda x: matcher(encoding.lower(repo[x].user())), condrepr=('<user %r>', n)) @predicate('bisect(string)', safe=True) def bisect(repo, subset, x): """Changesets marked in the specified bisect status: - ``good``, ``bad``, ``skip``: csets explicitly marked as good/bad/skip - ``goods``, ``bads`` : csets topologically good/bad - ``range`` : csets taking part in the bisection - ``pruned`` : csets that are goods, bads or skipped - ``untested`` : csets whose fate is yet unknown - ``ignored`` : csets ignored due to DAG topology - ``current`` : the cset currently being bisected """ # i18n: "bisect" is a keyword status = getstring(x, _("bisect requires a string")).lower() state = set(hbisect.get(repo, status)) return subset & state # Backward-compatibility # - no help entry so that we do not advertise it any more @predicate('bisected', safe=True) def bisected(repo, subset, x): return bisect(repo, subset, x) @predicate('bookmark([name])', safe=True) def bookmark(repo, subset, x): """The named bookmark or all bookmarks. If `name` starts with `re:`, the remainder of the name is treated as a regular expression. To match a bookmark that actually starts with `re:`, use the prefix `literal:`. """ # i18n: "bookmark" is a keyword args = getargs(x, 0, 1, _('bookmark takes one or no arguments')) if args: bm = getstring(args[0], # i18n: "bookmark" is a keyword _('the argument to bookmark must be a string')) kind, pattern, matcher = util.stringmatcher(bm) bms = set() if kind == 'literal': bmrev = repo._bookmarks.get(pattern, None) if not bmrev: raise error.RepoLookupError(_("bookmark '%s' does not exist") % pattern) bms.add(repo[bmrev].rev()) else: matchrevs = set() for name, bmrev in repo._bookmarks.iteritems(): if matcher(name): matchrevs.add(bmrev) if not matchrevs: raise error.RepoLookupError(_("no bookmarks exist" " that match '%s'") % pattern) for bmrev in matchrevs: bms.add(repo[bmrev].rev()) else: bms = set([repo[r].rev() for r in repo._bookmarks.values()]) bms -= set([node.nullrev]) return subset & bms @predicate('branch(string or set)', safe=True) def branch(repo, subset, x): """ All changesets belonging to the given branch or the branches of the given changesets. If `string` starts with `re:`, the remainder of the name is treated as a regular expression. To match a branch that actually starts with `re:`, use the prefix `literal:`. """ getbi = repo.revbranchcache().branchinfo try: b = getstring(x, '') except error.ParseError: # not a string, but another revspec, e.g. tip() pass else: kind, pattern, matcher = util.stringmatcher(b) if kind == 'literal': # note: falls through to the revspec case if no branch with # this name exists and pattern kind is not specified explicitly if pattern in repo.branchmap(): return subset.filter(lambda r: matcher(getbi(r)[0]), condrepr=('<branch %r>', b)) if b.startswith('literal:'): raise error.RepoLookupError(_("branch '%s' does not exist") % pattern) else: return subset.filter(lambda r: matcher(getbi(r)[0]), condrepr=('<branch %r>', b)) s = getset(repo, fullreposet(repo), x) b = set() for r in s: b.add(getbi(r)[0]) c = s.__contains__ return subset.filter(lambda r: c(r) or getbi(r)[0] in b, condrepr=lambda: '<branch %r>' % sorted(b)) @predicate('bumped()', safe=True) def bumped(repo, subset, x): """Mutable changesets marked as successors of public changesets. Only non-public and non-obsolete changesets can be `bumped`. """ # i18n: "bumped" is a keyword getargs(x, 0, 0, _("bumped takes no arguments")) bumped = obsmod.getrevs(repo, 'bumped') return subset & bumped @predicate('bundle()', safe=True) def bundle(repo, subset, x): """Changesets in the bundle. Bundle must be specified by the -R option.""" try: bundlerevs = repo.changelog.bundlerevs except AttributeError: raise error.Abort(_("no bundle provided - specify with -R")) return subset & bundlerevs def checkstatus(repo, subset, pat, field): hasset = matchmod.patkind(pat) == 'set' mcache = [None] def matches(x): c = repo[x] if not mcache[0] or hasset: mcache[0] = matchmod.match(repo.root, repo.getcwd(), [pat], ctx=c) m = mcache[0] fname = None if not m.anypats() and len(m.files()) == 1: fname = m.files()[0] if fname is not None: if fname not in c.files(): return False else: for f in c.files(): if m(f): break else: return False files = repo.status(c.p1().node(), c.node())[field] if fname is not None: if fname in files: return True else: for f in files: if m(f): return True return subset.filter(matches, condrepr=('<status[%r] %r>', field, pat)) def _children(repo, subset, parentset): if not parentset: return baseset() cs = set() pr = repo.changelog.parentrevs minrev = parentset.min() for r in subset: if r <= minrev: continue for p in pr(r): if p in parentset: cs.add(r) return baseset(cs) @predicate('children(set)', safe=True) def children(repo, subset, x): """Child changesets of changesets in set. """ s = getset(repo, fullreposet(repo), x) cs = _children(repo, subset, s) return subset & cs @predicate('closed()', safe=True) def closed(repo, subset, x): """Changeset is closed. """ # i18n: "closed" is a keyword getargs(x, 0, 0, _("closed takes no arguments")) return subset.filter(lambda r: repo[r].closesbranch(), condrepr='<branch closed>') @predicate('contains(pattern)') def contains(repo, subset, x): """The revision's manifest contains a file matching pattern (but might not modify it). See :hg:`help patterns` for information about file patterns. The pattern without explicit kind like ``glob:`` is expected to be relative to the current directory and match against a file exactly for efficiency. """ # i18n: "contains" is a keyword pat = getstring(x, _("contains requires a pattern")) def matches(x): if not matchmod.patkind(pat): pats = pathutil.canonpath(repo.root, repo.getcwd(), pat) if pats in repo[x]: return True else: c = repo[x] m = matchmod.match(repo.root, repo.getcwd(), [pat], ctx=c) for f in c.manifest(): if m(f): return True return False return subset.filter(matches, condrepr=('<contains %r>', pat)) @predicate('converted([id])', safe=True) def converted(repo, subset, x): """Changesets converted from the given identifier in the old repository if present, or all converted changesets if no identifier is specified. """ # There is exactly no chance of resolving the revision, so do a simple # string compare and hope for the best rev = None # i18n: "converted" is a keyword l = getargs(x, 0, 1, _('converted takes one or no arguments')) if l: # i18n: "converted" is a keyword rev = getstring(l[0], _('converted requires a revision')) def _matchvalue(r): source = repo[r].extra().get('convert_revision', None) return source is not None and (rev is None or source.startswith(rev)) return subset.filter(lambda r: _matchvalue(r), condrepr=('<converted %r>', rev)) @predicate('date(interval)', safe=True) def date(repo, subset, x): """Changesets within the interval, see :hg:`help dates`. """ # i18n: "date" is a keyword ds = getstring(x, _("date requires a string")) dm = util.matchdate(ds) return subset.filter(lambda x: dm(repo[x].date()[0]), condrepr=('<date %r>', ds)) @predicate('desc(string)', safe=True) def desc(repo, subset, x): """Search commit message for string. The match is case-insensitive. """ # i18n: "desc" is a keyword ds = encoding.lower(getstring(x, _("desc requires a string"))) def matches(x): c = repo[x] return ds in encoding.lower(c.description()) return subset.filter(matches, condrepr=('<desc %r>', ds)) def _descendants(repo, subset, x, followfirst=False): roots = getset(repo, fullreposet(repo), x) if not roots: return baseset() s = _revdescendants(repo, roots, followfirst) # Both sets need to be ascending in order to lazily return the union # in the correct order. base = subset & roots desc = subset & s result = base + desc if subset.isascending(): result.sort() elif subset.isdescending(): result.sort(reverse=True) else: result = subset & result return result @predicate('descendants(set)', safe=True) def descendants(repo, subset, x): """Changesets which are descendants of changesets in set. """ return _descendants(repo, subset, x) @predicate('_firstdescendants', safe=True) def _firstdescendants(repo, subset, x): # ``_firstdescendants(set)`` # Like ``descendants(set)`` but follows only the first parents. return _descendants(repo, subset, x, followfirst=True) @predicate('destination([set])', safe=True) def destination(repo, subset, x): """Changesets that were created by a graft, transplant or rebase operation, with the given revisions specified as the source. Omitting the optional set is the same as passing all(). """ if x is not None: sources = getset(repo, fullreposet(repo), x) else: sources = fullreposet(repo) dests = set() # subset contains all of the possible destinations that can be returned, so # iterate over them and see if their source(s) were provided in the arg set. # Even if the immediate src of r is not in the arg set, src's source (or # further back) may be. Scanning back further than the immediate src allows # transitive transplants and rebases to yield the same results as transitive # grafts. for r in subset: src = _getrevsource(repo, r) lineage = None while src is not None: if lineage is None: lineage = list() lineage.append(r) # The visited lineage is a match if the current source is in the arg # set. Since every candidate dest is visited by way of iterating # subset, any dests further back in the lineage will be tested by a # different iteration over subset. Likewise, if the src was already # selected, the current lineage can be selected without going back # further. if src in sources or src in dests: dests.update(lineage) break r = src src = _getrevsource(repo, r) return subset.filter(dests.__contains__, condrepr=lambda: '<destination %r>' % sorted(dests)) @predicate('divergent()', safe=True) def divergent(repo, subset, x): """ Final successors of changesets with an alternative set of final successors. """ # i18n: "divergent" is a keyword getargs(x, 0, 0, _("divergent takes no arguments")) divergent = obsmod.getrevs(repo, 'divergent') return subset & divergent @predicate('extinct()', safe=True) def extinct(repo, subset, x): """Obsolete changesets with obsolete descendants only. """ # i18n: "extinct" is a keyword getargs(x, 0, 0, _("extinct takes no arguments")) extincts = obsmod.getrevs(repo, 'extinct') return subset & extincts @predicate('extra(label, [value])', safe=True) def extra(repo, subset, x): """Changesets with the given label in the extra metadata, with the given optional value. If `value` starts with `re:`, the remainder of the value is treated as a regular expression. To match a value that actually starts with `re:`, use the prefix `literal:`. """ args = getargsdict(x, 'extra', 'label value') if 'label' not in args: # i18n: "extra" is a keyword raise error.ParseError(_('extra takes at least 1 argument')) # i18n: "extra" is a keyword label = getstring(args['label'], _('first argument to extra must be ' 'a string')) value = None if 'value' in args: # i18n: "extra" is a keyword value = getstring(args['value'], _('second argument to extra must be ' 'a string')) kind, value, matcher = util.stringmatcher(value) def _matchvalue(r): extra = repo[r].extra() return label in extra and (value is None or matcher(extra[label])) return subset.filter(lambda r: _matchvalue(r), condrepr=('<extra[%r] %r>', label, value)) @predicate('filelog(pattern)', safe=True) def filelog(repo, subset, x): """Changesets connected to the specified filelog. For performance reasons, visits only revisions mentioned in the file-level filelog, rather than filtering through all changesets (much faster, but doesn't include deletes or duplicate changes). For a slower, more accurate result, use ``file()``. The pattern without explicit kind like ``glob:`` is expected to be relative to the current directory and match against a file exactly for efficiency. If some linkrev points to revisions filtered by the current repoview, we'll work around it to return a non-filtered value. """ # i18n: "filelog" is a keyword pat = getstring(x, _("filelog requires a pattern")) s = set() cl = repo.changelog if not matchmod.patkind(pat): f = pathutil.canonpath(repo.root, repo.getcwd(), pat) files = [f] else: m = matchmod.match(repo.root, repo.getcwd(), [pat], ctx=repo[None]) files = (f for f in repo[None] if m(f)) for f in files: fl = repo.file(f) known = {} scanpos = 0 for fr in list(fl): fn = fl.node(fr) if fn in known: s.add(known[fn]) continue lr = fl.linkrev(fr) if lr in cl: s.add(lr) elif scanpos is not None: # lowest matching changeset is filtered, scan further # ahead in changelog start = max(lr, scanpos) + 1 scanpos = None for r in cl.revs(start): # minimize parsing of non-matching entries if f in cl.revision(r) and f in cl.readfiles(r): try: # try to use manifest delta fastpath n = repo[r].filenode(f) if n not in known: if n == fn: s.add(r) scanpos = r break else: known[n] = r except error.ManifestLookupError: # deletion in changelog continue return subset & s @predicate('first(set, [n])', safe=True) def first(repo, subset, x): """An alias for limit(). """ return limit(repo, subset, x) def _follow(repo, subset, x, name, followfirst=False): l = getargs(x, 0, 1, _("%s takes no arguments or a pattern") % name) c = repo['.'] if l: x = getstring(l[0], _("%s expected a pattern") % name) matcher = matchmod.match(repo.root, repo.getcwd(), [x], ctx=repo[None], default='path') files = c.manifest().walk(matcher) s = set() for fname in files: fctx = c[fname] s = s.union(set(c.rev() for c in fctx.ancestors(followfirst))) # include the revision responsible for the most recent version s.add(fctx.introrev()) else: s = _revancestors(repo, baseset([c.rev()]), followfirst) return subset & s @predicate('follow([pattern])', safe=True) def follow(repo, subset, x): """ An alias for ``::.`` (ancestors of the working directory's first parent). If pattern is specified, the histories of files matching given pattern is followed, including copies. """ return _follow(repo, subset, x, 'follow') @predicate('_followfirst', safe=True) def _followfirst(repo, subset, x): # ``followfirst([pattern])`` # Like ``follow([pattern])`` but follows only the first parent of # every revisions or files revisions. return _follow(repo, subset, x, '_followfirst', followfirst=True) @predicate('all()', safe=True) def getall(repo, subset, x): """All changesets, the same as ``0:tip``. """ # i18n: "all" is a keyword getargs(x, 0, 0, _("all takes no arguments")) return subset & spanset(repo) # drop "null" if any @predicate('grep(regex)') def grep(repo, subset, x): """Like ``keyword(string)`` but accepts a regex. Use ``grep(r'...')`` to ensure special escape characters are handled correctly. Unlike ``keyword(string)``, the match is case-sensitive. """ try: # i18n: "grep" is a keyword gr = re.compile(getstring(x, _("grep requires a string"))) except re.error as e: raise error.ParseError(_('invalid match pattern: %s') % e) def matches(x): c = repo[x] for e in c.files() + [c.user(), c.description()]: if gr.search(e): return True return False return subset.filter(matches, condrepr=('<grep %r>', gr.pattern)) @predicate('_matchfiles', safe=True) def _matchfiles(repo, subset, x): # _matchfiles takes a revset list of prefixed arguments: # # [p:foo, i:bar, x:baz] # # builds a match object from them and filters subset. Allowed # prefixes are 'p:' for regular patterns, 'i:' for include # patterns and 'x:' for exclude patterns. Use 'r:' prefix to pass # a revision identifier, or the empty string to reference the # working directory, from which the match object is # initialized. Use 'd:' to set the default matching mode, default # to 'glob'. At most one 'r:' and 'd:' argument can be passed. l = getargs(x, 1, -1, "_matchfiles requires at least one argument") pats, inc, exc = [], [], [] rev, default = None, None for arg in l: s = getstring(arg, "_matchfiles requires string arguments") prefix, value = s[:2], s[2:] if prefix == 'p:': pats.append(value) elif prefix == 'i:': inc.append(value) elif prefix == 'x:': exc.append(value) elif prefix == 'r:': if rev is not None: raise error.ParseError('_matchfiles expected at most one ' 'revision') if value != '': # empty means working directory; leave rev as None rev = value elif prefix == 'd:': if default is not None: raise error.ParseError('_matchfiles expected at most one ' 'default mode') default = value else: raise error.ParseError('invalid _matchfiles prefix: %s' % prefix) if not default: default = 'glob' m = matchmod.match(repo.root, repo.getcwd(), pats, include=inc, exclude=exc, ctx=repo[rev], default=default) # This directly read the changelog data as creating changectx for all # revisions is quite expensive. getfiles = repo.changelog.readfiles wdirrev = node.wdirrev def matches(x): if x == wdirrev: files = repo[x].files() else: files = getfiles(x) for f in files: if m(f): return True return False return subset.filter(matches, condrepr=('<matchfiles patterns=%r, include=%r ' 'exclude=%r, default=%r, rev=%r>', pats, inc, exc, default, rev)) @predicate('file(pattern)', safe=True) def hasfile(repo, subset, x): """Changesets affecting files matched by pattern. For a faster but less accurate result, consider using ``filelog()`` instead. This predicate uses ``glob:`` as the default kind of pattern. """ # i18n: "file" is a keyword pat = getstring(x, _("file requires a pattern")) return _matchfiles(repo, subset, ('string', 'p:' + pat)) @predicate('head()', safe=True) def head(repo, subset, x): """Changeset is a named branch head. """ # i18n: "head" is a keyword getargs(x, 0, 0, _("head takes no arguments")) hs = set() cl = repo.changelog for ls in repo.branchmap().itervalues(): hs.update(cl.rev(h) for h in ls) return subset & baseset(hs) @predicate('heads(set)', safe=True) def heads(repo, subset, x): """Members of set with no children in set. """ s = getset(repo, subset, x) ps = parents(repo, subset, x) return s - ps @predicate('hidden()', safe=True) def hidden(repo, subset, x): """Hidden changesets. """ # i18n: "hidden" is a keyword getargs(x, 0, 0, _("hidden takes no arguments")) hiddenrevs = repoview.filterrevs(repo, 'visible') return subset & hiddenrevs @predicate('keyword(string)', safe=True) def keyword(repo, subset, x): """Search commit message, user name, and names of changed files for string. The match is case-insensitive. """ # i18n: "keyword" is a keyword kw = encoding.lower(getstring(x, _("keyword requires a string"))) def matches(r): c = repo[r] return any(kw in encoding.lower(t) for t in c.files() + [c.user(), c.description()]) return subset.filter(matches, condrepr=('<keyword %r>', kw)) @predicate('limit(set[, n[, offset]])', safe=True) def limit(repo, subset, x): """First n members of set, defaulting to 1, starting from offset. """ args = getargsdict(x, 'limit', 'set n offset') if 'set' not in args: # i18n: "limit" is a keyword raise error.ParseError(_("limit requires one to three arguments")) try: lim, ofs = 1, 0 if 'n' in args: # i18n: "limit" is a keyword lim = int(getstring(args['n'], _("limit requires a number"))) if 'offset' in args: # i18n: "limit" is a keyword ofs = int(getstring(args['offset'], _("limit requires a number"))) if ofs < 0: raise error.ParseError(_("negative offset")) except (TypeError, ValueError): # i18n: "limit" is a keyword raise error.ParseError(_("limit expects a number")) os = getset(repo, fullreposet(repo), args['set']) result = [] it = iter(os) for x in xrange(ofs): y = next(it, None) if y is None: break for x in xrange(lim): y = next(it, None) if y is None: break elif y in subset: result.append(y) return baseset(result, datarepr=('<limit n=%d, offset=%d, %r, %r>', lim, ofs, subset, os)) @predicate('last(set, [n])', safe=True) def last(repo, subset, x): """Last n members of set, defaulting to 1. """ # i18n: "last" is a keyword l = getargs(x, 1, 2, _("last requires one or two arguments")) try: lim = 1 if len(l) == 2: # i18n: "last" is a keyword lim = int(getstring(l[1], _("last requires a number"))) except (TypeError, ValueError): # i18n: "last" is a keyword raise error.ParseError(_("last expects a number")) os = getset(repo, fullreposet(repo), l[0]) os.reverse() result = [] it = iter(os) for x in xrange(lim): y = next(it, None) if y is None: break elif y in subset: result.append(y) return baseset(result, datarepr=('<last n=%d, %r, %r>', lim, subset, os)) @predicate('max(set)', safe=True) def maxrev(repo, subset, x): """Changeset with highest revision number in set. """ os = getset(repo, fullreposet(repo), x) try: m = os.max() if m in subset: return baseset([m], datarepr=('<max %r, %r>', subset, os)) except ValueError: # os.max() throws a ValueError when the collection is empty. # Same as python's max(). pass return baseset(datarepr=('<max %r, %r>', subset, os)) @predicate('merge()', safe=True) def merge(repo, subset, x): """Changeset is a merge changeset. """ # i18n: "merge" is a keyword getargs(x, 0, 0, _("merge takes no arguments")) cl = repo.changelog return subset.filter(lambda r: cl.parentrevs(r)[1] != -1, condrepr='<merge>') @predicate('branchpoint()', safe=True) def branchpoint(repo, subset, x): """Changesets with more than one child. """ # i18n: "branchpoint" is a keyword getargs(x, 0, 0, _("branchpoint takes no arguments")) cl = repo.changelog if not subset: return baseset() # XXX this should be 'parentset.min()' assuming 'parentset' is a smartset # (and if it is not, it should.) baserev = min(subset) parentscount = [0]*(len(repo) - baserev) for r in cl.revs(start=baserev + 1): for p in cl.parentrevs(r): if p >= baserev: parentscount[p - baserev] += 1 return subset.filter(lambda r: parentscount[r - baserev] > 1, condrepr='<branchpoint>') @predicate('min(set)', safe=True) def minrev(repo, subset, x): """Changeset with lowest revision number in set. """ os = getset(repo, fullreposet(repo), x) try: m = os.min() if m in subset: return baseset([m], datarepr=('<min %r, %r>', subset, os)) except ValueError: # os.min() throws a ValueError when the collection is empty. # Same as python's min(). pass return baseset(datarepr=('<min %r, %r>', subset, os)) @predicate('modifies(pattern)', safe=True) def modifies(repo, subset, x): """Changesets modifying files matched by pattern. The pattern without explicit kind like ``glob:`` is expected to be relative to the current directory and match against a file or a directory. """ # i18n: "modifies" is a keyword pat = getstring(x, _("modifies requires a pattern")) return checkstatus(repo, subset, pat, 0) @predicate('named(namespace)') def named(repo, subset, x): """The changesets in a given namespace. If `namespace` starts with `re:`, the remainder of the string is treated as a regular expression. To match a namespace that actually starts with `re:`, use the prefix `literal:`. """ # i18n: "named" is a keyword args = getargs(x, 1, 1, _('named requires a namespace argument')) ns = getstring(args[0], # i18n: "named" is a keyword _('the argument to named must be a string')) kind, pattern, matcher = util.stringmatcher(ns) namespaces = set() if kind == 'literal': if pattern not in repo.names: raise error.RepoLookupError(_("namespace '%s' does not exist") % ns) namespaces.add(repo.names[pattern]) else: for name, ns in repo.names.iteritems(): if matcher(name): namespaces.add(ns) if not namespaces: raise error.RepoLookupError(_("no namespace exists" " that match '%s'") % pattern) names = set() for ns in namespaces: for name in ns.listnames(repo): if name not in ns.deprecated: names.update(repo[n].rev() for n in ns.nodes(repo, name)) names -= set([node.nullrev]) return subset & names @predicate('id(string)', safe=True) def node_(repo, subset, x): """Revision non-ambiguously specified by the given hex string prefix. """ # i18n: "id" is a keyword l = getargs(x, 1, 1, _("id requires one argument")) # i18n: "id" is a keyword n = getstring(l[0], _("id requires a string")) if len(n) == 40: try: rn = repo.changelog.rev(node.bin(n)) except (LookupError, TypeError): rn = None else: rn = None pm = repo.changelog._partialmatch(n) if pm is not None: rn = repo.changelog.rev(pm) if rn is None: return baseset() result = baseset([rn]) return result & subset @predicate('obsolete()', safe=True) def obsolete(repo, subset, x): """Mutable changeset with a newer version.""" # i18n: "obsolete" is a keyword getargs(x, 0, 0, _("obsolete takes no arguments")) obsoletes = obsmod.getrevs(repo, 'obsolete') return subset & obsoletes @predicate('only(set, [set])', safe=True) def only(repo, subset, x): """Changesets that are ancestors of the first set that are not ancestors of any other head in the repo. If a second set is specified, the result is ancestors of the first set that are not ancestors of the second set (i.e. ::<set1> - ::<set2>). """ cl = repo.changelog # i18n: "only" is a keyword args = getargs(x, 1, 2, _('only takes one or two arguments')) include = getset(repo, fullreposet(repo), args[0]) if len(args) == 1: if not include: return baseset() descendants = set(_revdescendants(repo, include, False)) exclude = [rev for rev in cl.headrevs() if not rev in descendants and not rev in include] else: exclude = getset(repo, fullreposet(repo), args[1]) results = set(cl.findmissingrevs(common=exclude, heads=include)) # XXX we should turn this into a baseset instead of a set, smartset may do # some optimisations from the fact this is a baseset. return subset & results @predicate('origin([set])', safe=True) def origin(repo, subset, x): """ Changesets that were specified as a source for the grafts, transplants or rebases that created the given revisions. Omitting the optional set is the same as passing all(). If a changeset created by these operations is itself specified as a source for one of these operations, only the source changeset for the first operation is selected. """ if x is not None: dests = getset(repo, fullreposet(repo), x) else: dests = fullreposet(repo) def _firstsrc(rev): src = _getrevsource(repo, rev) if src is None: return None while True: prev = _getrevsource(repo, src) if prev is None: return src src = prev o = set([_firstsrc(r) for r in dests]) o -= set([None]) # XXX we should turn this into a baseset instead of a set, smartset may do # some optimisations from the fact this is a baseset. return subset & o @predicate('outgoing([path])', safe=True) def outgoing(repo, subset, x): """Changesets not found in the specified destination repository, or the default push location. """ # Avoid cycles. from . import ( discovery, hg, ) # i18n: "outgoing" is a keyword l = getargs(x, 0, 1, _("outgoing takes one or no arguments")) # i18n: "outgoing" is a keyword dest = l and getstring(l[0], _("outgoing requires a repository path")) or '' dest = repo.ui.expandpath(dest or 'default-push', dest or 'default') dest, branches = hg.parseurl(dest) revs, checkout = hg.addbranchrevs(repo, repo, branches, []) if revs: revs = [repo.lookup(rev) for rev in revs] other = hg.peer(repo, {}, dest) repo.ui.pushbuffer() outgoing = discovery.findcommonoutgoing(repo, other, onlyheads=revs) repo.ui.popbuffer() cl = repo.changelog o = set([cl.rev(r) for r in outgoing.missing]) return subset & o @predicate('p1([set])', safe=True) def p1(repo, subset, x): """First parent of changesets in set, or the working directory. """ if x is None: p = repo[x].p1().rev() if p >= 0: return subset & baseset([p]) return baseset() ps = set() cl = repo.changelog for r in getset(repo, fullreposet(repo), x): ps.add(cl.parentrevs(r)[0]) ps -= set([node.nullrev]) # XXX we should turn this into a baseset instead of a set, smartset may do # some optimisations from the fact this is a baseset. return subset & ps @predicate('p2([set])', safe=True) def p2(repo, subset, x): """Second parent of changesets in set, or the working directory. """ if x is None: ps = repo[x].parents() try: p = ps[1].rev() if p >= 0: return subset & baseset([p]) return baseset() except IndexError: return baseset() ps = set() cl = repo.changelog for r in getset(repo, fullreposet(repo), x): ps.add(cl.parentrevs(r)[1]) ps -= set([node.nullrev]) # XXX we should turn this into a baseset instead of a set, smartset may do # some optimisations from the fact this is a baseset. return subset & ps @predicate('parents([set])', safe=True) def parents(repo, subset, x): """ The set of all parents for all changesets in set, or the working directory. """ if x is None: ps = set(p.rev() for p in repo[x].parents()) else: ps = set() cl = repo.changelog up = ps.update parentrevs = cl.parentrevs for r in getset(repo, fullreposet(repo), x): if r == node.wdirrev: up(p.rev() for p in repo[r].parents()) else: up(parentrevs(r)) ps -= set([node.nullrev]) return subset & ps def _phase(repo, subset, target): """helper to select all rev in phase <target>""" repo._phasecache.loadphaserevs(repo) # ensure phase's sets are loaded if repo._phasecache._phasesets: s = repo._phasecache._phasesets[target] - repo.changelog.filteredrevs s = baseset(s) s.sort() # set are non ordered, so we enforce ascending return subset & s else: phase = repo._phasecache.phase condition = lambda r: phase(repo, r) == target return subset.filter(condition, condrepr=('<phase %r>', target), cache=False) @predicate('draft()', safe=True) def draft(repo, subset, x): """Changeset in draft phase.""" # i18n: "draft" is a keyword getargs(x, 0, 0, _("draft takes no arguments")) target = phases.draft return _phase(repo, subset, target) @predicate('secret()', safe=True) def secret(repo, subset, x): """Changeset in secret phase.""" # i18n: "secret" is a keyword getargs(x, 0, 0, _("secret takes no arguments")) target = phases.secret return _phase(repo, subset, target) def parentspec(repo, subset, x, n): """``set^0`` The set. ``set^1`` (or ``set^``), ``set^2`` First or second parent, respectively, of all changesets in set. """ try: n = int(n[1]) if n not in (0, 1, 2): raise ValueError except (TypeError, ValueError): raise error.ParseError(_("^ expects a number 0, 1, or 2")) ps = set() cl = repo.changelog for r in getset(repo, fullreposet(repo), x): if n == 0: ps.add(r) elif n == 1: ps.add(cl.parentrevs(r)[0]) elif n == 2: parents = cl.parentrevs(r) if len(parents) > 1: ps.add(parents[1]) return subset & ps @predicate('present(set)', safe=True) def present(repo, subset, x): """An empty set, if any revision in set isn't found; otherwise, all revisions in set. If any of specified revisions is not present in the local repository, the query is normally aborted. But this predicate allows the query to continue even in such cases. """ try: return getset(repo, subset, x) except error.RepoLookupError: return baseset() # for internal use @predicate('_notpublic', safe=True) def _notpublic(repo, subset, x): getargs(x, 0, 0, "_notpublic takes no arguments") repo._phasecache.loadphaserevs(repo) # ensure phase's sets are loaded if repo._phasecache._phasesets: s = set() for u in repo._phasecache._phasesets[1:]: s.update(u) s = baseset(s - repo.changelog.filteredrevs) s.sort() return subset & s else: phase = repo._phasecache.phase target = phases.public condition = lambda r: phase(repo, r) != target return subset.filter(condition, condrepr=('<phase %r>', target), cache=False) @predicate('public()', safe=True) def public(repo, subset, x): """Changeset in public phase.""" # i18n: "public" is a keyword getargs(x, 0, 0, _("public takes no arguments")) phase = repo._phasecache.phase target = phases.public condition = lambda r: phase(repo, r) == target return subset.filter(condition, condrepr=('<phase %r>', target), cache=False) @predicate('remote([id [,path]])', safe=True) def remote(repo, subset, x): """Local revision that corresponds to the given identifier in a remote repository, if present. Here, the '.' identifier is a synonym for the current local branch. """ from . import hg # avoid start-up nasties # i18n: "remote" is a keyword l = getargs(x, 0, 2, _("remote takes zero, one, or two arguments")) q = '.' if len(l) > 0: # i18n: "remote" is a keyword q = getstring(l[0], _("remote requires a string id")) if q == '.': q = repo['.'].branch() dest = '' if len(l) > 1: # i18n: "remote" is a keyword dest = getstring(l[1], _("remote requires a repository path")) dest = repo.ui.expandpath(dest or 'default') dest, branches = hg.parseurl(dest) revs, checkout = hg.addbranchrevs(repo, repo, branches, []) if revs: revs = [repo.lookup(rev) for rev in revs] other = hg.peer(repo, {}, dest) n = other.lookup(q) if n in repo: r = repo[n].rev() if r in subset: return baseset([r]) return baseset() @predicate('removes(pattern)', safe=True) def removes(repo, subset, x): """Changesets which remove files matching pattern. The pattern without explicit kind like ``glob:`` is expected to be relative to the current directory and match against a file or a directory. """ # i18n: "removes" is a keyword pat = getstring(x, _("removes requires a pattern")) return checkstatus(repo, subset, pat, 2) @predicate('rev(number)', safe=True) def rev(repo, subset, x): """Revision with the given numeric identifier. """ # i18n: "rev" is a keyword l = getargs(x, 1, 1, _("rev requires one argument")) try: # i18n: "rev" is a keyword l = int(getstring(l[0], _("rev requires a number"))) except (TypeError, ValueError): # i18n: "rev" is a keyword raise error.ParseError(_("rev expects a number")) if l not in repo.changelog and l != node.nullrev: return baseset() return subset & baseset([l]) @predicate('matching(revision [, field])', safe=True) def matching(repo, subset, x): """Changesets in which a given set of fields match the set of fields in the selected revision or set. To match more than one field pass the list of fields to match separated by spaces (e.g. ``author description``). Valid fields are most regular revision fields and some special fields. Regular revision fields are ``description``, ``author``, ``branch``, ``date``, ``files``, ``phase``, ``parents``, ``substate``, ``user`` and ``diff``. Note that ``author`` and ``user`` are synonyms. ``diff`` refers to the contents of the revision. Two revisions matching their ``diff`` will also match their ``files``. Special fields are ``summary`` and ``metadata``: ``summary`` matches the first line of the description. ``metadata`` is equivalent to matching ``description user date`` (i.e. it matches the main metadata fields). ``metadata`` is the default field which is used when no fields are specified. You can match more than one field at a time. """ # i18n: "matching" is a keyword l = getargs(x, 1, 2, _("matching takes 1 or 2 arguments")) revs = getset(repo, fullreposet(repo), l[0]) fieldlist = ['metadata'] if len(l) > 1: fieldlist = getstring(l[1], # i18n: "matching" is a keyword _("matching requires a string " "as its second argument")).split() # Make sure that there are no repeated fields, # expand the 'special' 'metadata' field type # and check the 'files' whenever we check the 'diff' fields = [] for field in fieldlist: if field == 'metadata': fields += ['user', 'description', 'date'] elif field == 'diff': # a revision matching the diff must also match the files # since matching the diff is very costly, make sure to # also match the files first fields += ['files', 'diff'] else: if field == 'author': field = 'user' fields.append(field) fields = set(fields) if 'summary' in fields and 'description' in fields: # If a revision matches its description it also matches its summary fields.discard('summary') # We may want to match more than one field # Not all fields take the same amount of time to be matched # Sort the selected fields in order of increasing matching cost fieldorder = ['phase', 'parents', 'user', 'date', 'branch', 'summary', 'files', 'description', 'substate', 'diff'] def fieldkeyfunc(f): try: return fieldorder.index(f) except ValueError: # assume an unknown field is very costly return len(fieldorder) fields = list(fields) fields.sort(key=fieldkeyfunc) # Each field will be matched with its own "getfield" function # which will be added to the getfieldfuncs array of functions getfieldfuncs = [] _funcs = { 'user': lambda r: repo[r].user(), 'branch': lambda r: repo[r].branch(), 'date': lambda r: repo[r].date(), 'description': lambda r: repo[r].description(), 'files': lambda r: repo[r].files(), 'parents': lambda r: repo[r].parents(), 'phase': lambda r: repo[r].phase(), 'substate': lambda r: repo[r].substate, 'summary': lambda r: repo[r].description().splitlines()[0], 'diff': lambda r: list(repo[r].diff(git=True),) } for info in fields: getfield = _funcs.get(info, None) if getfield is None: raise error.ParseError( # i18n: "matching" is a keyword _("unexpected field name passed to matching: %s") % info) getfieldfuncs.append(getfield) # convert the getfield array of functions into a "getinfo" function # which returns an array of field values (or a single value if there # is only one field to match) getinfo = lambda r: [f(r) for f in getfieldfuncs] def matches(x): for rev in revs: target = getinfo(rev) match = True for n, f in enumerate(getfieldfuncs): if target[n] != f(x): match = False if match: return True return False return subset.filter(matches, condrepr=('<matching%r %r>', fields, revs)) @predicate('reverse(set)', safe=True) def reverse(repo, subset, x): """Reverse order of set. """ l = getset(repo, subset, x) l.reverse() return l @predicate('roots(set)', safe=True) def roots(repo, subset, x): """Changesets in set with no parent changeset in set. """ s = getset(repo, fullreposet(repo), x) parents = repo.changelog.parentrevs def filter(r): for p in parents(r): if 0 <= p and p in s: return False return True return subset & s.filter(filter, condrepr='<roots>') _sortkeyfuncs = { 'rev': lambda c: c.rev(), 'branch': lambda c: c.branch(), 'desc': lambda c: c.description(), 'user': lambda c: c.user(), 'author': lambda c: c.user(), 'date': lambda c: c.date()[0], } def _getsortargs(x): """Parse sort options into (set, [(key, reverse)], opts)""" args = getargsdict(x, 'sort', 'set keys topo.firstbranch') if 'set' not in args: # i18n: "sort" is a keyword raise error.ParseError(_('sort requires one or two arguments')) keys = "rev" if 'keys' in args: # i18n: "sort" is a keyword keys = getstring(args['keys'], _("sort spec must be a string")) keyflags = [] for k in keys.split(): fk = k reverse = (k[0] == '-') if reverse: k = k[1:] if k not in _sortkeyfuncs and k != 'topo': raise error.ParseError(_("unknown sort key %r") % fk) keyflags.append((k, reverse)) if len(keyflags) > 1 and any(k == 'topo' for k, reverse in keyflags): # i18n: "topo" is a keyword raise error.ParseError(_( 'topo sort order cannot be combined with other sort keys')) opts = {} if 'topo.firstbranch' in args: if any(k == 'topo' for k, reverse in keyflags): opts['topo.firstbranch'] = args['topo.firstbranch'] else: # i18n: "topo" and "topo.firstbranch" are keywords raise error.ParseError(_( 'topo.firstbranch can only be used when using the topo sort ' 'key')) return args['set'], keyflags, opts @predicate('sort(set[, [-]key... [, ...]])', safe=True) def sort(repo, subset, x): """Sort set by keys. The default sort order is ascending, specify a key as ``-key`` to sort in descending order. The keys can be: - ``rev`` for the revision number, - ``branch`` for the branch name, - ``desc`` for the commit message (description), - ``user`` for user name (``author`` can be used as an alias), - ``date`` for the commit date - ``topo`` for a reverse topographical sort The ``topo`` sort order cannot be combined with other sort keys. This sort takes one optional argument, ``topo.firstbranch``, which takes a revset that specifies what topographical branches to prioritize in the sort. """ s, keyflags, opts = _getsortargs(x) revs = getset(repo, subset, s) if not keyflags: return revs if len(keyflags) == 1 and keyflags[0][0] == "rev": revs.sort(reverse=keyflags[0][1]) return revs elif keyflags[0][0] == "topo": firstbranch = () if 'topo.firstbranch' in opts: firstbranch = getset(repo, subset, opts['topo.firstbranch']) revs = baseset(_toposort(revs, repo.changelog.parentrevs, firstbranch), istopo=True) if keyflags[0][1]: revs.reverse() return revs # sort() is guaranteed to be stable ctxs = [repo[r] for r in revs] for k, reverse in reversed(keyflags): ctxs.sort(key=_sortkeyfuncs[k], reverse=reverse) return baseset([c.rev() for c in ctxs]) def _toposort(revs, parentsfunc, firstbranch=()): """Yield revisions from heads to roots one (topo) branch at a time. This function aims to be used by a graph generator that wishes to minimize the number of parallel branches and their interleaving. Example iteration order (numbers show the "true" order in a changelog): o 4 | o 1 | | o 3 | | | o 2 |/ o 0 Note that the ancestors of merges are understood by the current algorithm to be on the same branch. This means no reordering will occur behind a merge. """ ### Quick summary of the algorithm # # This function is based around a "retention" principle. We keep revisions # in memory until we are ready to emit a whole branch that immediately # "merges" into an existing one. This reduces the number of parallel # branches with interleaved revisions. # # During iteration revs are split into two groups: # A) revision already emitted # B) revision in "retention". They are stored as different subgroups. # # for each REV, we do the following logic: # # 1) if REV is a parent of (A), we will emit it. If there is a # retention group ((B) above) that is blocked on REV being # available, we emit all the revisions out of that retention # group first. # # 2) else, we'll search for a subgroup in (B) awaiting for REV to be # available, if such subgroup exist, we add REV to it and the subgroup is # now awaiting for REV.parents() to be available. # # 3) finally if no such group existed in (B), we create a new subgroup. # # # To bootstrap the algorithm, we emit the tipmost revision (which # puts it in group (A) from above). revs.sort(reverse=True) # Set of parents of revision that have been emitted. They can be considered # unblocked as the graph generator is already aware of them so there is no # need to delay the revisions that reference them. # # If someone wants to prioritize a branch over the others, pre-filling this # set will force all other branches to wait until this branch is ready to be # emitted. unblocked = set(firstbranch) # list of groups waiting to be displayed, each group is defined by: # # (revs: lists of revs waiting to be displayed, # blocked: set of that cannot be displayed before those in 'revs') # # The second value ('blocked') correspond to parents of any revision in the # group ('revs') that is not itself contained in the group. The main idea # of this algorithm is to delay as much as possible the emission of any # revision. This means waiting for the moment we are about to display # these parents to display the revs in a group. # # This first implementation is smart until it encounters a merge: it will # emit revs as soon as any parent is about to be emitted and can grow an # arbitrary number of revs in 'blocked'. In practice this mean we properly # retains new branches but gives up on any special ordering for ancestors # of merges. The implementation can be improved to handle this better. # # The first subgroup is special. It corresponds to all the revision that # were already emitted. The 'revs' lists is expected to be empty and the # 'blocked' set contains the parents revisions of already emitted revision. # # You could pre-seed the <parents> set of groups[0] to a specific # changesets to select what the first emitted branch should be. groups = [([], unblocked)] pendingheap = [] pendingset = set() heapq.heapify(pendingheap) heappop = heapq.heappop heappush = heapq.heappush for currentrev in revs: # Heap works with smallest element, we want highest so we invert if currentrev not in pendingset: heappush(pendingheap, -currentrev) pendingset.add(currentrev) # iterates on pending rev until after the current rev have been # processed. rev = None while rev != currentrev: rev = -heappop(pendingheap) pendingset.remove(rev) # Seek for a subgroup blocked, waiting for the current revision. matching = [i for i, g in enumerate(groups) if rev in g[1]] if matching: # The main idea is to gather together all sets that are blocked # on the same revision. # # Groups are merged when a common blocking ancestor is # observed. For example, given two groups: # # revs [5, 4] waiting for 1 # revs [3, 2] waiting for 1 # # These two groups will be merged when we process # 1. In theory, we could have merged the groups when # we added 2 to the group it is now in (we could have # noticed the groups were both blocked on 1 then), but # the way it works now makes the algorithm simpler. # # We also always keep the oldest subgroup first. We can # probably improve the behavior by having the longest set # first. That way, graph algorithms could minimise the length # of parallel lines their drawing. This is currently not done. targetidx = matching.pop(0) trevs, tparents = groups[targetidx] for i in matching: gr = groups[i] trevs.extend(gr[0]) tparents |= gr[1] # delete all merged subgroups (except the one we kept) # (starting from the last subgroup for performance and # sanity reasons) for i in reversed(matching): del groups[i] else: # This is a new head. We create a new subgroup for it. targetidx = len(groups) groups.append(([], set([rev]))) gr = groups[targetidx] # We now add the current nodes to this subgroups. This is done # after the subgroup merging because all elements from a subgroup # that relied on this rev must precede it. # # we also update the <parents> set to include the parents of the # new nodes. if rev == currentrev: # only display stuff in rev gr[0].append(rev) gr[1].remove(rev) parents = [p for p in parentsfunc(rev) if p > node.nullrev] gr[1].update(parents) for p in parents: if p not in pendingset: pendingset.add(p) heappush(pendingheap, -p) # Look for a subgroup to display # # When unblocked is empty (if clause), we were not waiting for any # revisions during the first iteration (if no priority was given) or # if we emitted a whole disconnected set of the graph (reached a # root). In that case we arbitrarily take the oldest known # subgroup. The heuristic could probably be better. # # Otherwise (elif clause) if the subgroup is blocked on # a revision we just emitted, we can safely emit it as # well. if not unblocked: if len(groups) > 1: # display other subset targetidx = 1 gr = groups[1] elif not gr[1] & unblocked: gr = None if gr is not None: # update the set of awaited revisions with the one from the # subgroup unblocked |= gr[1] # output all revisions in the subgroup for r in gr[0]: yield r # delete the subgroup that you just output # unless it is groups[0] in which case you just empty it. if targetidx: del groups[targetidx] else: gr[0][:] = [] # Check if we have some subgroup waiting for revisions we are not going to # iterate over for g in groups: for r in g[0]: yield r @predicate('subrepo([pattern])') def subrepo(repo, subset, x): """Changesets that add, modify or remove the given subrepo. If no subrepo pattern is named, any subrepo changes are returned. """ # i18n: "subrepo" is a keyword args = getargs(x, 0, 1, _('subrepo takes at most one argument')) pat = None if len(args) != 0: pat = getstring(args[0], _("subrepo requires a pattern")) m = matchmod.exact(repo.root, repo.root, ['.hgsubstate']) def submatches(names): k, p, m = util.stringmatcher(pat) for name in names: if m(name): yield name def matches(x): c = repo[x] s = repo.status(c.p1().node(), c.node(), match=m) if pat is None: return s.added or s.modified or s.removed if s.added: return any(submatches(c.substate.keys())) if s.modified: subs = set(c.p1().substate.keys()) subs.update(c.substate.keys()) for path in submatches(subs): if c.p1().substate.get(path) != c.substate.get(path): return True if s.removed: return any(submatches(c.p1().substate.keys())) return False return subset.filter(matches, condrepr=('<subrepo %r>', pat)) def _substringmatcher(pattern): kind, pattern, matcher = util.stringmatcher(pattern) if kind == 'literal': matcher = lambda s: pattern in s return kind, pattern, matcher @predicate('tag([name])', safe=True) def tag(repo, subset, x): """The specified tag by name, or all tagged revisions if no name is given. If `name` starts with `re:`, the remainder of the name is treated as a regular expression. To match a tag that actually starts with `re:`, use the prefix `literal:`. """ # i18n: "tag" is a keyword args = getargs(x, 0, 1, _("tag takes one or no arguments")) cl = repo.changelog if args: pattern = getstring(args[0], # i18n: "tag" is a keyword _('the argument to tag must be a string')) kind, pattern, matcher = util.stringmatcher(pattern) if kind == 'literal': # avoid resolving all tags tn = repo._tagscache.tags.get(pattern, None) if tn is None: raise error.RepoLookupError(_("tag '%s' does not exist") % pattern) s = set([repo[tn].rev()]) else: s = set([cl.rev(n) for t, n in repo.tagslist() if matcher(t)]) else: s = set([cl.rev(n) for t, n in repo.tagslist() if t != 'tip']) return subset & s @predicate('tagged', safe=True) def tagged(repo, subset, x): return tag(repo, subset, x) @predicate('unstable()', safe=True) def unstable(repo, subset, x): """Non-obsolete changesets with obsolete ancestors. """ # i18n: "unstable" is a keyword getargs(x, 0, 0, _("unstable takes no arguments")) unstables = obsmod.getrevs(repo, 'unstable') return subset & unstables @predicate('user(string)', safe=True) def user(repo, subset, x): """User name contains string. The match is case-insensitive. If `string` starts with `re:`, the remainder of the string is treated as a regular expression. To match a user that actually contains `re:`, use the prefix `literal:`. """ return author(repo, subset, x) # experimental @predicate('wdir', safe=True) def wdir(repo, subset, x): # i18n: "wdir" is a keyword getargs(x, 0, 0, _("wdir takes no arguments")) if node.wdirrev in subset or isinstance(subset, fullreposet): return baseset([node.wdirrev]) return baseset() # for internal use @predicate('_list', safe=True) def _list(repo, subset, x): s = getstring(x, "internal error") if not s: return baseset() # remove duplicates here. it's difficult for caller to deduplicate sets # because different symbols can point to the same rev. cl = repo.changelog ls = [] seen = set() for t in s.split('\0'): try: # fast path for integer revision r = int(t) if str(r) != t or r not in cl: raise ValueError revs = [r] except ValueError: revs = stringset(repo, subset, t) for r in revs: if r in seen: continue if (r in subset or r == node.nullrev and isinstance(subset, fullreposet)): ls.append(r) seen.add(r) return baseset(ls) # for internal use @predicate('_intlist', safe=True) def _intlist(repo, subset, x): s = getstring(x, "internal error") if not s: return baseset() ls = [int(r) for r in s.split('\0')] s = subset return baseset([r for r in ls if r in s]) # for internal use @predicate('_hexlist', safe=True) def _hexlist(repo, subset, x): s = getstring(x, "internal error") if not s: return baseset() cl = repo.changelog ls = [cl.rev(node.bin(r)) for r in s.split('\0')] s = subset return baseset([r for r in ls if r in s]) methods = { "range": rangeset, "dagrange": dagrange, "string": stringset, "symbol": stringset, "and": andset, "or": orset, "not": notset, "difference": differenceset, "list": listset, "keyvalue": keyvaluepair, "func": func, "ancestor": ancestorspec, "parent": parentspec, "parentpost": p1, } def _matchonly(revs, bases): """ >>> f = lambda *args: _matchonly(*map(parse, args)) >>> f('ancestors(A)', 'not ancestors(B)') ('list', ('symbol', 'A'), ('symbol', 'B')) """ if (revs is not None and revs[0] == 'func' and getsymbol(revs[1]) == 'ancestors' and bases is not None and bases[0] == 'not' and bases[1][0] == 'func' and getsymbol(bases[1][1]) == 'ancestors'): return ('list', revs[2], bases[1][2]) def _optimize(x, small): if x is None: return 0, x smallbonus = 1 if small: smallbonus = .5 op = x[0] if op == 'minus': return _optimize(('and', x[1], ('not', x[2])), small) elif op == 'only': t = ('func', ('symbol', 'only'), ('list', x[1], x[2])) return _optimize(t, small) elif op == 'onlypost': return _optimize(('func', ('symbol', 'only'), x[1]), small) elif op == 'dagrangepre': return _optimize(('func', ('symbol', 'ancestors'), x[1]), small) elif op == 'dagrangepost': return _optimize(('func', ('symbol', 'descendants'), x[1]), small) elif op == 'rangeall': return _optimize(('range', ('string', '0'), ('string', 'tip')), small) elif op == 'rangepre': return _optimize(('range', ('string', '0'), x[1]), small) elif op == 'rangepost': return _optimize(('range', x[1], ('string', 'tip')), small) elif op == 'negate': s = getstring(x[1], _("can't negate that")) return _optimize(('string', '-' + s), small) elif op in 'string symbol negate': return smallbonus, x # single revisions are small elif op == 'and': wa, ta = _optimize(x[1], True) wb, tb = _optimize(x[2], True) w = min(wa, wb) # (::x and not ::y)/(not ::y and ::x) have a fast path tm = _matchonly(ta, tb) or _matchonly(tb, ta) if tm: return w, ('func', ('symbol', 'only'), tm) if tb is not None and tb[0] == 'not': return wa, ('difference', ta, tb[1]) if wa > wb: return w, (op, tb, ta) return w, (op, ta, tb) elif op == 'or': # fast path for machine-generated expression, that is likely to have # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()' ws, ts, ss = [], [], [] def flushss(): if not ss: return if len(ss) == 1: w, t = ss[0] else: s = '\0'.join(t[1] for w, t in ss) y = ('func', ('symbol', '_list'), ('string', s)) w, t = _optimize(y, False) ws.append(w) ts.append(t) del ss[:] for y in x[1:]: w, t = _optimize(y, False) if t is not None and (t[0] == 'string' or t[0] == 'symbol'): ss.append((w, t)) continue flushss() ws.append(w) ts.append(t) flushss() if len(ts) == 1: return ws[0], ts[0] # 'or' operation is fully optimized out # we can't reorder trees by weight because it would change the order. # ("sort(a + b)" == "sort(b + a)", but "a + b" != "b + a") # ts = tuple(t for w, t in sorted(zip(ws, ts), key=lambda wt: wt[0])) return max(ws), (op,) + tuple(ts) elif op == 'not': # Optimize not public() to _notpublic() because we have a fast version if x[1] == ('func', ('symbol', 'public'), None): newsym = ('func', ('symbol', '_notpublic'), None) o = _optimize(newsym, not small) return o[0], o[1] else: o = _optimize(x[1], not small) return o[0], (op, o[1]) elif op == 'parentpost': o = _optimize(x[1], small) return o[0], (op, o[1]) elif op == 'group': return _optimize(x[1], small) elif op in 'dagrange range parent ancestorspec': if op == 'parent': # x^:y means (x^) : y, not x ^ (:y) post = ('parentpost', x[1]) if x[2][0] == 'dagrangepre': return _optimize(('dagrange', post, x[2][1]), small) elif x[2][0] == 'rangepre': return _optimize(('range', post, x[2][1]), small) wa, ta = _optimize(x[1], small) wb, tb = _optimize(x[2], small) return wa + wb, (op, ta, tb) elif op == 'list': ws, ts = zip(*(_optimize(y, small) for y in x[1:])) return sum(ws), (op,) + ts elif op == 'func': f = getsymbol(x[1]) wa, ta = _optimize(x[2], small) if f in ("author branch closed date desc file grep keyword " "outgoing user"): w = 10 # slow elif f in "modifies adds removes": w = 30 # slower elif f == "contains": w = 100 # very slow elif f == "ancestor": w = 1 * smallbonus elif f in "reverse limit first _intlist": w = 0 elif f in "sort": w = 10 # assume most sorts look at changelog else: w = 1 return w + wa, (op, x[1], ta) return 1, x def optimize(tree): _weight, newtree = _optimize(tree, small=True) return newtree # the set of valid characters for the initial letter of symbols in # alias declarations and definitions _aliassyminitletters = set(c for c in [chr(i) for i in xrange(256)] if c.isalnum() or c in '._@$' or ord(c) > 127) def _parsewith(spec, lookup=None, syminitletters=None): """Generate a parse tree of given spec with given tokenizing options >>> _parsewith('foo($1)', syminitletters=_aliassyminitletters) ('func', ('symbol', 'foo'), ('symbol', '$1')) >>> _parsewith('$1') Traceback (most recent call last): ... ParseError: ("syntax error in revset '$1'", 0) >>> _parsewith('foo bar') Traceback (most recent call last): ... ParseError: ('invalid token', 4) """ p = parser.parser(elements) tree, pos = p.parse(tokenize(spec, lookup=lookup, syminitletters=syminitletters)) if pos != len(spec): raise error.ParseError(_('invalid token'), pos) return parser.simplifyinfixops(tree, ('list', 'or')) class _aliasrules(parser.basealiasrules): """Parsing and expansion rule set of revset aliases""" _section = _('revset alias') @staticmethod def _parse(spec): """Parse alias declaration/definition ``spec`` This allows symbol names to use also ``$`` as an initial letter (for backward compatibility), and callers of this function should examine whether ``$`` is used also for unexpected symbols or not. """ return _parsewith(spec, syminitletters=_aliassyminitletters) @staticmethod def _trygetfunc(tree): if tree[0] == 'func' and tree[1][0] == 'symbol': return tree[1][1], getlist(tree[2]) def expandaliases(ui, tree, showwarning=None): aliases = _aliasrules.buildmap(ui.configitems('revsetalias')) tree = _aliasrules.expand(aliases, tree) if showwarning: # warn about problematic (but not referred) aliases for name, alias in sorted(aliases.iteritems()): if alias.error and not alias.warned: showwarning(_('warning: %s\n') % (alias.error)) alias.warned = True return tree def foldconcat(tree): """Fold elements to be concatenated by `##` """ if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): return tree if tree[0] == '_concat': pending = [tree] l = [] while pending: e = pending.pop() if e[0] == '_concat': pending.extend(reversed(e[1:])) elif e[0] in ('string', 'symbol'): l.append(e[1]) else: msg = _("\"##\" can't concatenate \"%s\" element") % (e[0]) raise error.ParseError(msg) return ('string', ''.join(l)) else: return tuple(foldconcat(t) for t in tree) def parse(spec, lookup=None): return _parsewith(spec, lookup=lookup) def posttreebuilthook(tree, repo): # hook for extensions to execute code on the optimized tree pass def match(ui, spec, repo=None): """Create a matcher for a single revision spec.""" return matchany(ui, [spec], repo=repo) def matchany(ui, specs, repo=None): """Create a matcher that will include any revisions matching one of the given specs""" if not specs: def mfunc(repo, subset=None): return baseset() return mfunc if not all(specs): raise error.ParseError(_("empty query")) lookup = None if repo: lookup = repo.__contains__ if len(specs) == 1: tree = parse(specs[0], lookup) else: tree = ('or',) + tuple(parse(s, lookup) for s in specs) return _makematcher(ui, tree, repo) def _makematcher(ui, tree, repo): if ui: tree = expandaliases(ui, tree, showwarning=ui.warn) tree = foldconcat(tree) tree = optimize(tree) posttreebuilthook(tree, repo) def mfunc(repo, subset=None): if subset is None: subset = fullreposet(repo) if util.safehasattr(subset, 'isascending'): result = getset(repo, subset, tree) else: result = getset(repo, baseset(subset), tree) return result return mfunc def formatspec(expr, *args): ''' This is a convenience function for using revsets internally, and escapes arguments appropriately. Aliases are intentionally ignored so that intended expression behavior isn't accidentally subverted. Supported arguments: %r = revset expression, parenthesized %d = int(arg), no quoting %s = string(arg), escaped and single-quoted %b = arg.branch(), escaped and single-quoted %n = hex(arg), single-quoted %% = a literal '%' Prefixing the type with 'l' specifies a parenthesized list of that type. >>> formatspec('%r:: and %lr', '10 or 11', ("this()", "that()")) '(10 or 11):: and ((this()) or (that()))' >>> formatspec('%d:: and not %d::', 10, 20) '10:: and not 20::' >>> formatspec('%ld or %ld', [], [1]) "_list('') or 1" >>> formatspec('keyword(%s)', 'foo\\xe9') "keyword('foo\\\\xe9')" >>> b = lambda: 'default' >>> b.branch = b >>> formatspec('branch(%b)', b) "branch('default')" >>> formatspec('root(%ls)', ['a', 'b', 'c', 'd']) "root(_list('a\\x00b\\x00c\\x00d'))" ''' def quote(s): return repr(str(s)) def argtype(c, arg): if c == 'd': return str(int(arg)) elif c == 's': return quote(arg) elif c == 'r': parse(arg) # make sure syntax errors are confined return '(%s)' % arg elif c == 'n': return quote(node.hex(arg)) elif c == 'b': return quote(arg.branch()) def listexp(s, t): l = len(s) if l == 0: return "_list('')" elif l == 1: return argtype(t, s[0]) elif t == 'd': return "_intlist('%s')" % "\0".join(str(int(a)) for a in s) elif t == 's': return "_list('%s')" % "\0".join(s) elif t == 'n': return "_hexlist('%s')" % "\0".join(node.hex(a) for a in s) elif t == 'b': return "_list('%s')" % "\0".join(a.branch() for a in s) m = l // 2 return '(%s or %s)' % (listexp(s[:m], t), listexp(s[m:], t)) ret = '' pos = 0 arg = 0 while pos < len(expr): c = expr[pos] if c == '%': pos += 1 d = expr[pos] if d == '%': ret += d elif d in 'dsnbr': ret += argtype(d, args[arg]) arg += 1 elif d == 'l': # a list of some type pos += 1 d = expr[pos] ret += listexp(list(args[arg]), d) arg += 1 else: raise error.Abort(_('unexpected revspec format character %s') % d) else: ret += c pos += 1 return ret def prettyformat(tree): return parser.prettyformat(tree, ('string', 'symbol')) def depth(tree): if isinstance(tree, tuple): return max(map(depth, tree)) + 1 else: return 0 def funcsused(tree): if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): return set() else: funcs = set() for s in tree[1:]: funcs |= funcsused(s) if tree[0] == 'func': funcs.add(tree[1][1]) return funcs def _formatsetrepr(r): """Format an optional printable representation of a set ======== ================================= type(r) example ======== ================================= tuple ('<not %r>', other) str '<branch closed>' callable lambda: '<branch %r>' % sorted(b) object other ======== ================================= """ if r is None: return '' elif isinstance(r, tuple): return r[0] % r[1:] elif isinstance(r, str): return r elif callable(r): return r() else: return repr(r) class abstractsmartset(object): def __nonzero__(self): """True if the smartset is not empty""" raise NotImplementedError() def __contains__(self, rev): """provide fast membership testing""" raise NotImplementedError() def __iter__(self): """iterate the set in the order it is supposed to be iterated""" raise NotImplementedError() # Attributes containing a function to perform a fast iteration in a given # direction. A smartset can have none, one, or both defined. # # Default value is None instead of a function returning None to avoid # initializing an iterator just for testing if a fast method exists. fastasc = None fastdesc = None def isascending(self): """True if the set will iterate in ascending order""" raise NotImplementedError() def isdescending(self): """True if the set will iterate in descending order""" raise NotImplementedError() def istopo(self): """True if the set will iterate in topographical order""" raise NotImplementedError() @util.cachefunc def min(self): """return the minimum element in the set""" if self.fastasc is not None: for r in self.fastasc(): return r raise ValueError('arg is an empty sequence') return min(self) @util.cachefunc def max(self): """return the maximum element in the set""" if self.fastdesc is not None: for r in self.fastdesc(): return r raise ValueError('arg is an empty sequence') return max(self) def first(self): """return the first element in the set (user iteration perspective) Return None if the set is empty""" raise NotImplementedError() def last(self): """return the last element in the set (user iteration perspective) Return None if the set is empty""" raise NotImplementedError() def __len__(self): """return the length of the smartsets This can be expensive on smartset that could be lazy otherwise.""" raise NotImplementedError() def reverse(self): """reverse the expected iteration order""" raise NotImplementedError() def sort(self, reverse=True): """get the set to iterate in an ascending or descending order""" raise NotImplementedError() def __and__(self, other): """Returns a new object with the intersection of the two collections. This is part of the mandatory API for smartset.""" if isinstance(other, fullreposet): return self return self.filter(other.__contains__, condrepr=other, cache=False) def __add__(self, other): """Returns a new object with the union of the two collections. This is part of the mandatory API for smartset.""" return addset(self, other) def __sub__(self, other): """Returns a new object with the substraction of the two collections. This is part of the mandatory API for smartset.""" c = other.__contains__ return self.filter(lambda r: not c(r), condrepr=('<not %r>', other), cache=False) def filter(self, condition, condrepr=None, cache=True): """Returns this smartset filtered by condition as a new smartset. `condition` is a callable which takes a revision number and returns a boolean. Optional `condrepr` provides a printable representation of the given `condition`. This is part of the mandatory API for smartset.""" # builtin cannot be cached. but do not needs to if cache and util.safehasattr(condition, 'func_code'): condition = util.cachefunc(condition) return filteredset(self, condition, condrepr) class baseset(abstractsmartset): """Basic data structure that represents a revset and contains the basic operation that it should be able to perform. Every method in this class should be implemented by any smartset class. """ def __init__(self, data=(), datarepr=None, istopo=False): """ datarepr: a tuple of (format, obj, ...), a function or an object that provides a printable representation of the given data. """ self._ascending = None self._istopo = istopo if not isinstance(data, list): if isinstance(data, set): self._set = data # set has no order we pick one for stability purpose self._ascending = True data = list(data) self._list = data self._datarepr = datarepr @util.propertycache def _set(self): return set(self._list) @util.propertycache def _asclist(self): asclist = self._list[:] asclist.sort() return asclist def __iter__(self): if self._ascending is None: return iter(self._list) elif self._ascending: return iter(self._asclist) else: return reversed(self._asclist) def fastasc(self): return iter(self._asclist) def fastdesc(self): return reversed(self._asclist) @util.propertycache def __contains__(self): return self._set.__contains__ def __nonzero__(self): return bool(self._list) def sort(self, reverse=False): self._ascending = not bool(reverse) self._istopo = False def reverse(self): if self._ascending is None: self._list.reverse() else: self._ascending = not self._ascending self._istopo = False def __len__(self): return len(self._list) def isascending(self): """Returns True if the collection is ascending order, False if not. This is part of the mandatory API for smartset.""" if len(self) <= 1: return True return self._ascending is not None and self._ascending def isdescending(self): """Returns True if the collection is descending order, False if not. This is part of the mandatory API for smartset.""" if len(self) <= 1: return True return self._ascending is not None and not self._ascending def istopo(self): """Is the collection is in topographical order or not. This is part of the mandatory API for smartset.""" if len(self) <= 1: return True return self._istopo def first(self): if self: if self._ascending is None: return self._list[0] elif self._ascending: return self._asclist[0] else: return self._asclist[-1] return None def last(self): if self: if self._ascending is None: return self._list[-1] elif self._ascending: return self._asclist[-1] else: return self._asclist[0] return None def __repr__(self): d = {None: '', False: '-', True: '+'}[self._ascending] s = _formatsetrepr(self._datarepr) if not s: l = self._list # if _list has been built from a set, it might have a different # order from one python implementation to another. # We fallback to the sorted version for a stable output. if self._ascending is not None: l = self._asclist s = repr(l) return '<%s%s %s>' % (type(self).__name__, d, s) class filteredset(abstractsmartset): """Duck type for baseset class which iterates lazily over the revisions in the subset and contains a function which tests for membership in the revset """ def __init__(self, subset, condition=lambda x: True, condrepr=None): """ condition: a function that decide whether a revision in the subset belongs to the revset or not. condrepr: a tuple of (format, obj, ...), a function or an object that provides a printable representation of the given condition. """ self._subset = subset self._condition = condition self._condrepr = condrepr def __contains__(self, x): return x in self._subset and self._condition(x) def __iter__(self): return self._iterfilter(self._subset) def _iterfilter(self, it): cond = self._condition for x in it: if cond(x): yield x @property def fastasc(self): it = self._subset.fastasc if it is None: return None return lambda: self._iterfilter(it()) @property def fastdesc(self): it = self._subset.fastdesc if it is None: return None return lambda: self._iterfilter(it()) def __nonzero__(self): fast = None candidates = [self.fastasc if self.isascending() else None, self.fastdesc if self.isdescending() else None, self.fastasc, self.fastdesc] for candidate in candidates: if candidate is not None: fast = candidate break if fast is not None: it = fast() else: it = self for r in it: return True return False def __len__(self): # Basic implementation to be changed in future patches. # until this gets improved, we use generator expression # here, since list compr is free to call __len__ again # causing infinite recursion l = baseset(r for r in self) return len(l) def sort(self, reverse=False): self._subset.sort(reverse=reverse) def reverse(self): self._subset.reverse() def isascending(self): return self._subset.isascending() def isdescending(self): return self._subset.isdescending() def istopo(self): return self._subset.istopo() def first(self): for x in self: return x return None def last(self): it = None if self.isascending(): it = self.fastdesc elif self.isdescending(): it = self.fastasc if it is not None: for x in it(): return x return None #empty case else: x = None for x in self: pass return x def __repr__(self): xs = [repr(self._subset)] s = _formatsetrepr(self._condrepr) if s: xs.append(s) return '<%s %s>' % (type(self).__name__, ', '.join(xs)) def _iterordered(ascending, iter1, iter2): """produce an ordered iteration from two iterators with the same order The ascending is used to indicated the iteration direction. """ choice = max if ascending: choice = min val1 = None val2 = None try: # Consume both iterators in an ordered way until one is empty while True: if val1 is None: val1 = next(iter1) if val2 is None: val2 = next(iter2) n = choice(val1, val2) yield n if val1 == n: val1 = None if val2 == n: val2 = None except StopIteration: # Flush any remaining values and consume the other one it = iter2 if val1 is not None: yield val1 it = iter1 elif val2 is not None: # might have been equality and both are empty yield val2 for val in it: yield val class addset(abstractsmartset): """Represent the addition of two sets Wrapper structure for lazily adding two structures without losing much performance on the __contains__ method If the ascending attribute is set, that means the two structures are ordered in either an ascending or descending way. Therefore, we can add them maintaining the order by iterating over both at the same time >>> xs = baseset([0, 3, 2]) >>> ys = baseset([5, 2, 4]) >>> rs = addset(xs, ys) >>> bool(rs), 0 in rs, 1 in rs, 5 in rs, rs.first(), rs.last() (True, True, False, True, 0, 4) >>> rs = addset(xs, baseset([])) >>> bool(rs), 0 in rs, 1 in rs, rs.first(), rs.last() (True, True, False, 0, 2) >>> rs = addset(baseset([]), baseset([])) >>> bool(rs), 0 in rs, rs.first(), rs.last() (False, False, None, None) iterate unsorted: >>> rs = addset(xs, ys) >>> # (use generator because pypy could call len()) >>> list(x for x in rs) # without _genlist [0, 3, 2, 5, 4] >>> assert not rs._genlist >>> len(rs) 5 >>> [x for x in rs] # with _genlist [0, 3, 2, 5, 4] >>> assert rs._genlist iterate ascending: >>> rs = addset(xs, ys, ascending=True) >>> # (use generator because pypy could call len()) >>> list(x for x in rs), list(x for x in rs.fastasc()) # without _asclist ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) >>> assert not rs._asclist >>> len(rs) 5 >>> [x for x in rs], [x for x in rs.fastasc()] ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) >>> assert rs._asclist iterate descending: >>> rs = addset(xs, ys, ascending=False) >>> # (use generator because pypy could call len()) >>> list(x for x in rs), list(x for x in rs.fastdesc()) # without _asclist ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) >>> assert not rs._asclist >>> len(rs) 5 >>> [x for x in rs], [x for x in rs.fastdesc()] ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) >>> assert rs._asclist iterate ascending without fastasc: >>> rs = addset(xs, generatorset(ys), ascending=True) >>> assert rs.fastasc is None >>> [x for x in rs] [0, 2, 3, 4, 5] iterate descending without fastdesc: >>> rs = addset(generatorset(xs), ys, ascending=False) >>> assert rs.fastdesc is None >>> [x for x in rs] [5, 4, 3, 2, 0] """ def __init__(self, revs1, revs2, ascending=None): self._r1 = revs1 self._r2 = revs2 self._iter = None self._ascending = ascending self._genlist = None self._asclist = None def __len__(self): return len(self._list) def __nonzero__(self): return bool(self._r1) or bool(self._r2) @util.propertycache def _list(self): if not self._genlist: self._genlist = baseset(iter(self)) return self._genlist def __iter__(self): """Iterate over both collections without repeating elements If the ascending attribute is not set, iterate over the first one and then over the second one checking for membership on the first one so we dont yield any duplicates. If the ascending attribute is set, iterate over both collections at the same time, yielding only one value at a time in the given order. """ if self._ascending is None: if self._genlist: return iter(self._genlist) def arbitraryordergen(): for r in self._r1: yield r inr1 = self._r1.__contains__ for r in self._r2: if not inr1(r): yield r return arbitraryordergen() # try to use our own fast iterator if it exists self._trysetasclist() if self._ascending: attr = 'fastasc' else: attr = 'fastdesc' it = getattr(self, attr) if it is not None: return it() # maybe half of the component supports fast # get iterator for _r1 iter1 = getattr(self._r1, attr) if iter1 is None: # let's avoid side effect (not sure it matters) iter1 = iter(sorted(self._r1, reverse=not self._ascending)) else: iter1 = iter1() # get iterator for _r2 iter2 = getattr(self._r2, attr) if iter2 is None: # let's avoid side effect (not sure it matters) iter2 = iter(sorted(self._r2, reverse=not self._ascending)) else: iter2 = iter2() return _iterordered(self._ascending, iter1, iter2) def _trysetasclist(self): """populate the _asclist attribute if possible and necessary""" if self._genlist is not None and self._asclist is None: self._asclist = sorted(self._genlist) @property def fastasc(self): self._trysetasclist() if self._asclist is not None: return self._asclist.__iter__ iter1 = self._r1.fastasc iter2 = self._r2.fastasc if None in (iter1, iter2): return None return lambda: _iterordered(True, iter1(), iter2()) @property def fastdesc(self): self._trysetasclist() if self._asclist is not None: return self._asclist.__reversed__ iter1 = self._r1.fastdesc iter2 = self._r2.fastdesc if None in (iter1, iter2): return None return lambda: _iterordered(False, iter1(), iter2()) def __contains__(self, x): return x in self._r1 or x in self._r2 def sort(self, reverse=False): """Sort the added set For this we use the cached list with all the generated values and if we know they are ascending or descending we can sort them in a smart way. """ self._ascending = not reverse def isascending(self): return self._ascending is not None and self._ascending def isdescending(self): return self._ascending is not None and not self._ascending def istopo(self): # not worth the trouble asserting if the two sets combined are still # in topographical order. Use the sort() predicate to explicitly sort # again instead. return False def reverse(self): if self._ascending is None: self._list.reverse() else: self._ascending = not self._ascending def first(self): for x in self: return x return None def last(self): self.reverse() val = self.first() self.reverse() return val def __repr__(self): d = {None: '', False: '-', True: '+'}[self._ascending] return '<%s%s %r, %r>' % (type(self).__name__, d, self._r1, self._r2) class generatorset(abstractsmartset): """Wrap a generator for lazy iteration Wrapper structure for generators that provides lazy membership and can be iterated more than once. When asked for membership it generates values until either it finds the requested one or has gone through all the elements in the generator """ def __init__(self, gen, iterasc=None): """ gen: a generator producing the values for the generatorset. """ self._gen = gen self._asclist = None self._cache = {} self._genlist = [] self._finished = False self._ascending = True if iterasc is not None: if iterasc: self.fastasc = self._iterator self.__contains__ = self._asccontains else: self.fastdesc = self._iterator self.__contains__ = self._desccontains def __nonzero__(self): # Do not use 'for r in self' because it will enforce the iteration # order (default ascending), possibly unrolling a whole descending # iterator. if self._genlist: return True for r in self._consumegen(): return True return False def __contains__(self, x): if x in self._cache: return self._cache[x] # Use new values only, as existing values would be cached. for l in self._consumegen(): if l == x: return True self._cache[x] = False return False def _asccontains(self, x): """version of contains optimised for ascending generator""" if x in self._cache: return self._cache[x] # Use new values only, as existing values would be cached. for l in self._consumegen(): if l == x: return True if l > x: break self._cache[x] = False return False def _desccontains(self, x): """version of contains optimised for descending generator""" if x in self._cache: return self._cache[x] # Use new values only, as existing values would be cached. for l in self._consumegen(): if l == x: return True if l < x: break self._cache[x] = False return False def __iter__(self): if self._ascending: it = self.fastasc else: it = self.fastdesc if it is not None: return it() # we need to consume the iterator for x in self._consumegen(): pass # recall the same code return iter(self) def _iterator(self): if self._finished: return iter(self._genlist) # We have to use this complex iteration strategy to allow multiple # iterations at the same time. We need to be able to catch revision # removed from _consumegen and added to genlist in another instance. # # Getting rid of it would provide an about 15% speed up on this # iteration. genlist = self._genlist nextrev = self._consumegen().next _len = len # cache global lookup def gen(): i = 0 while True: if i < _len(genlist): yield genlist[i] else: yield nextrev() i += 1 return gen() def _consumegen(self): cache = self._cache genlist = self._genlist.append for item in self._gen: cache[item] = True genlist(item) yield item if not self._finished: self._finished = True asc = self._genlist[:] asc.sort() self._asclist = asc self.fastasc = asc.__iter__ self.fastdesc = asc.__reversed__ def __len__(self): for x in self._consumegen(): pass return len(self._genlist) def sort(self, reverse=False): self._ascending = not reverse def reverse(self): self._ascending = not self._ascending def isascending(self): return self._ascending def isdescending(self): return not self._ascending def istopo(self): # not worth the trouble asserting if the two sets combined are still # in topographical order. Use the sort() predicate to explicitly sort # again instead. return False def first(self): if self._ascending: it = self.fastasc else: it = self.fastdesc if it is None: # we need to consume all and try again for x in self._consumegen(): pass return self.first() return next(it(), None) def last(self): if self._ascending: it = self.fastdesc else: it = self.fastasc if it is None: # we need to consume all and try again for x in self._consumegen(): pass return self.first() return next(it(), None) def __repr__(self): d = {False: '-', True: '+'}[self._ascending] return '<%s%s>' % (type(self).__name__, d) class spanset(abstractsmartset): """Duck type for baseset class which represents a range of revisions and can work lazily and without having all the range in memory Note that spanset(x, y) behave almost like xrange(x, y) except for two notable points: - when x < y it will be automatically descending, - revision filtered with this repoview will be skipped. """ def __init__(self, repo, start=0, end=None): """ start: first revision included the set (default to 0) end: first revision excluded (last+1) (default to len(repo) Spanset will be descending if `end` < `start`. """ if end is None: end = len(repo) self._ascending = start <= end if not self._ascending: start, end = end + 1, start +1 self._start = start self._end = end self._hiddenrevs = repo.changelog.filteredrevs def sort(self, reverse=False): self._ascending = not reverse def reverse(self): self._ascending = not self._ascending def istopo(self): # not worth the trouble asserting if the two sets combined are still # in topographical order. Use the sort() predicate to explicitly sort # again instead. return False def _iterfilter(self, iterrange): s = self._hiddenrevs for r in iterrange: if r not in s: yield r def __iter__(self): if self._ascending: return self.fastasc() else: return self.fastdesc() def fastasc(self): iterrange = xrange(self._start, self._end) if self._hiddenrevs: return self._iterfilter(iterrange) return iter(iterrange) def fastdesc(self): iterrange = xrange(self._end - 1, self._start - 1, -1) if self._hiddenrevs: return self._iterfilter(iterrange) return iter(iterrange) def __contains__(self, rev): hidden = self._hiddenrevs return ((self._start <= rev < self._end) and not (hidden and rev in hidden)) def __nonzero__(self): for r in self: return True return False def __len__(self): if not self._hiddenrevs: return abs(self._end - self._start) else: count = 0 start = self._start end = self._end for rev in self._hiddenrevs: if (end < rev <= start) or (start <= rev < end): count += 1 return abs(self._end - self._start) - count def isascending(self): return self._ascending def isdescending(self): return not self._ascending def first(self): if self._ascending: it = self.fastasc else: it = self.fastdesc for x in it(): return x return None def last(self): if self._ascending: it = self.fastdesc else: it = self.fastasc for x in it(): return x return None def __repr__(self): d = {False: '-', True: '+'}[self._ascending] return '<%s%s %d:%d>' % (type(self).__name__, d, self._start, self._end - 1) class fullreposet(spanset): """a set containing all revisions in the repo This class exists to host special optimization and magic to handle virtual revisions such as "null". """ def __init__(self, repo): super(fullreposet, self).__init__(repo) def __and__(self, other): """As self contains the whole repo, all of the other set should also be in self. Therefore `self & other = other`. This boldly assumes the other contains valid revs only. """ # other not a smartset, make is so if not util.safehasattr(other, 'isascending'): # filter out hidden revision # (this boldly assumes all smartset are pure) # # `other` was used with "&", let's assume this is a set like # object. other = baseset(other - self._hiddenrevs) # XXX As fullreposet is also used as bootstrap, this is wrong. # # With a giveme312() revset returning [3,1,2], this makes # 'hg log -r "giveme312()"' -> 1, 2, 3 (wrong) # We cannot just drop it because other usage still need to sort it: # 'hg log -r "all() and giveme312()"' -> 1, 2, 3 (right) # # There is also some faulty revset implementations that rely on it # (eg: children as of its state in e8075329c5fb) # # When we fix the two points above we can move this into the if clause other.sort(reverse=self.isdescending()) return other def prettyformatset(revs): lines = [] rs = repr(revs) p = 0 while p < len(rs): q = rs.find('<', p + 1) if q < 0: q = len(rs) l = rs.count('<', 0, p) - rs.count('>', 0, p) assert l >= 0 lines.append((l, rs[p:q].rstrip())) p = q return '\n'.join(' ' * l + s for l, s in lines) def loadpredicate(ui, extname, registrarobj): """Load revset predicates from specified registrarobj """ for name, func in registrarobj._table.iteritems(): symbols[name] = func if func._safe: safesymbols.add(name) # load built-in predicates explicitly to setup safesymbols loadpredicate(None, None, predicate) # tell hggettext to extract docstrings from these functions: i18nfunctions = symbols.values()