Mercurial > hg
view mercurial/revset.py @ 24373:59cc09240afb
revbranchcache: move out of branchmap onto localrepo
Previously the revbranchcache was a field inside the branchmap. This is bad for
a couple reasons:
1) There can be multiple branchmaps per repo (one for each filter level). There
can only be one revbranchcache per repo. In fact, a revbranchcache could only
exist on a branchmap that was for the unfiltered view, so you could have
branchmaps exist for which you couldn't have a revbranchcache. It was funky.
2) The write lifecycle for the revbranchcache is going to be different from
the branchmap (branchmap is greedily written early on, revbranchcache
should be lazily computed and written).
This patch moves the revbranchcache to live as a field on the localrepo
(alongside self._branchmap). This will allow us to handle it's lifecycle
differently, which will let us move it to be lazily computed in future patches.
| author | Durham Goode <durham@fb.com> |
|---|---|
| date | Tue, 10 Feb 2015 19:53:48 -0800 |
| parents | e8ea31131705 |
| children | 77fd1fb538cd |
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. import re import parser, util, error, discovery, hbisect, phases import node import heapq import match as matchmod from i18n import _ import encoding import obsolete as obsmod import pathutil import repoview def _revancestors(repo, revs, followfirst): """Like revlog.ancestors(), but supports followfirst.""" if followfirst: cut = 1 else: cut = None cl = repo.changelog def iterate(): revqueue, revsnode = None, None h = [] revs.sort(reverse=True) revqueue = util.deque(revs) if revqueue: revsnode = revqueue.popleft() heapq.heappush(h, -revsnode) seen = set() while h: current = -heapq.heappop(h) if current not in seen: if revsnode and current == revsnode: if revqueue: revsnode = revqueue.popleft() heapq.heappush(h, -revsnode) 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 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 _revsbetween(repo, roots, heads): """Return all paths between roots and heads, inclusive of both endpoint sets.""" if not roots: return baseset() parentrevs = repo.changelog.parentrevs visit = list(heads) reachable = set() seen = {} minroot = min(roots) roots = set(roots) # open-code the post-order traversal due to the tiny size of # sys.getrecursionlimit() while visit: rev = visit.pop() if rev in roots: reachable.add(rev) parents = parentrevs(rev) seen[rev] = parents for parent in parents: if parent >= minroot and parent not in seen: visit.append(parent) if not reachable: return baseset() for rev in sorted(seen): for parent in seen[rev]: if parent in reachable: reachable.add(rev) return baseset(sorted(reachable)) elements = { "(": (21, ("group", 1, ")"), ("func", 1, ")")), "##": (20, None, ("_concat", 20)), "~": (18, None, ("ancestor", 18)), "^": (18, None, ("parent", 18), ("parentpost", 18)), "-": (5, ("negate", 19), ("minus", 5)), "::": (17, ("dagrangepre", 17), ("dagrange", 17), ("dagrangepost", 17)), "..": (17, ("dagrangepre", 17), ("dagrange", 17), ("dagrangepost", 17)), ":": (15, ("rangepre", 15), ("range", 15), ("rangepost", 15)), "not": (10, ("not", 10)), "!": (10, ("not", 10)), "and": (5, None, ("and", 5)), "&": (5, None, ("and", 5)), "%": (5, None, ("only", 5), ("onlypost", 5)), "or": (4, None, ("or", 4)), "|": (4, None, ("or", 4)), "+": (4, None, ("or", 4)), ",": (2, None, ("list", 2)), ")": (0, None, None), "symbol": (0, ("symbol",), None), "string": (0, ("string",), None), "end": (0, 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 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 = lambda x: x.decode('string-escape') 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"), pos) pos += 1 yield ('end', None, pos) def parseerrordetail(inst): """Compose error message from specified ParseError object """ if len(inst.args) > 1: return _('at %s: %s') % (inst.args[1], inst.args[0]) else: return inst.args[0] # helpers 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 getlist(x[1]) + [x[2]] 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 isvalidsymbol(tree): """Examine whether specified ``tree`` is valid ``symbol`` or not """ return tree[0] == 'symbol' and len(tree) > 1 def getsymbol(tree): """Get symbol name from valid ``symbol`` in ``tree`` This assumes that ``tree`` is already examined by ``isvalidsymbol``. """ return tree[1] def isvalidfunc(tree): """Examine whether specified ``tree`` is valid ``func`` or not """ return tree[0] == 'func' and len(tree) > 1 and isvalidsymbol(tree[1]) def getfuncname(tree): """Get function name from valid ``func`` in ``tree`` This assumes that ``tree`` is already examined by ``isvalidfunc``. """ return getsymbol(tree[1]) def getfuncargs(tree): """Get list of function arguments from valid ``func`` in ``tree`` This assumes that ``tree`` is already examined by ``isvalidfunc``. """ if len(tree) > 2: return getlist(tree[2]) else: return [] 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 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: return baseset([x]) return baseset() def symbolset(repo, subset, x): if x in symbols: raise error.ParseError(_("can't use %s here") % x) return stringset(repo, subset, x) 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 = spanset(repo, m, n + 1) else: r = spanset(repo, m, n - 1) return r & subset def dagrange(repo, subset, x, y): r = fullreposet(repo) xs = _revsbetween(repo, getset(repo, r, x), getset(repo, r, y)) return xs & subset def andset(repo, subset, x, y): return getset(repo, getset(repo, subset, x), y) def orset(repo, subset, x, y): xl = getset(repo, subset, x) yl = getset(repo, subset - xl, y) return xl + yl def notset(repo, subset, x): return subset - getset(repo, subset, x) def listset(repo, subset, a, b): raise error.ParseError(_("can't use a list in this context")) def func(repo, subset, a, b): if a[0] == 'symbol' and a[1] in symbols: return symbols[a[1]](repo, subset, b) raise error.UnknownIdentifier(a[1], symbols.keys()) # functions def adds(repo, subset, x): """``adds(pattern)`` 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) def ancestor(repo, subset, x): """``ancestor(*changeset)`` 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 def ancestors(repo, subset, x): """``ancestors(set)`` Changesets that are ancestors of a changeset in set. """ return _ancestors(repo, subset, x) 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 def author(repo, subset, x): """``author(string)`` 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()))) def bisect(repo, subset, x): """``bisect(string)`` 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 def bisected(repo, subset, x): return bisect(repo, subset, x) def bookmark(repo, subset, x): """``bookmark([name])`` 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 = _stringmatcher(bm) bms = set() if kind == 'literal': bmrev = repo._bookmarks.get(pattern, None) if not bmrev: raise error.RepoLookupError(_("bookmark '%s' does not exist") % bm) 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 def branch(repo, subset, x): """``branch(string or set)`` 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:`. """ import branchmap urepo = repo.unfiltered() ucl = urepo.changelog getbi = branchmap.revbranchcache(urepo, readonly=True).branchinfo try: b = getstring(x, '') except error.ParseError: # not a string, but another revspec, e.g. tip() pass else: kind, pattern, matcher = _stringmatcher(b) if kind == 'literal': # note: falls through to the revspec case if no branch with # this name exists if pattern in repo.branchmap(): return subset.filter(lambda r: matcher(getbi(ucl, r)[0])) else: return subset.filter(lambda r: matcher(getbi(ucl, r)[0])) s = getset(repo, fullreposet(repo), x) b = set() for r in s: b.add(getbi(ucl, r)[0]) c = s.__contains__ return subset.filter(lambda r: c(r) or getbi(ucl, r)[0] in b) def bumped(repo, subset, x): """``bumped()`` 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 def bundle(repo, subset, x): """``bundle()`` Changesets in the bundle. Bundle must be specified by the -R option.""" try: bundlerevs = repo.changelog.bundlerevs except AttributeError: raise util.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) def _children(repo, narrow, parentset): cs = set() if not parentset: return baseset(cs) pr = repo.changelog.parentrevs minrev = min(parentset) for r in narrow: if r <= minrev: continue for p in pr(r): if p in parentset: cs.add(r) return baseset(cs) def children(repo, subset, x): """``children(set)`` Child changesets of changesets in set. """ s = getset(repo, fullreposet(repo), x) cs = _children(repo, subset, s) return subset & cs def closed(repo, subset, x): """``closed()`` Changeset is closed. """ # i18n: "closed" is a keyword getargs(x, 0, 0, _("closed takes no arguments")) return subset.filter(lambda r: repo[r].closesbranch()) def contains(repo, subset, x): """``contains(pattern)`` 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) def converted(repo, subset, x): """``converted([id])`` 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)) def date(repo, subset, x): """``date(interval)`` 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])) def desc(repo, subset, x): """``desc(string)`` 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) 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 def descendants(repo, subset, x): """``descendants(set)`` Changesets which are descendants of changesets in set. """ return _descendants(repo, subset, x) def _firstdescendants(repo, subset, x): # ``_firstdescendants(set)`` # Like ``descendants(set)`` but follows only the first parents. return _descendants(repo, subset, x, followfirst=True) def destination(repo, subset, x): """``destination([set])`` 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__) def divergent(repo, subset, x): """``divergent()`` 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 def draft(repo, subset, x): """``draft()`` Changeset in draft phase.""" # i18n: "draft" is a keyword getargs(x, 0, 0, _("draft takes no arguments")) phase = repo._phasecache.phase target = phases.draft condition = lambda r: phase(repo, r) == target return subset.filter(condition, cache=False) def extinct(repo, subset, x): """``extinct()`` 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 def extra(repo, subset, x): """``extra(label, [value])`` 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:`. """ # i18n: "extra" is a keyword l = getargs(x, 1, 2, _('extra takes at least 1 and at most 2 arguments')) # i18n: "extra" is a keyword label = getstring(l[0], _('first argument to extra must be a string')) value = None if len(l) > 1: # i18n: "extra" is a keyword value = getstring(l[1], _('second argument to extra must be a string')) kind, value, matcher = _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)) def filelog(repo, subset, x): """``filelog(pattern)`` 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: backrevref = {} # final value for: filerev -> changerev lowestchild = {} # lowest known filerev child of a filerev delayed = [] # filerev with filtered linkrev, for post-processing lowesthead = None # cache for manifest content of all head revisions fl = repo.file(f) for fr in list(fl): rev = fl.linkrev(fr) if rev not in cl: # changerev pointed in linkrev is filtered # record it for post processing. delayed.append((fr, rev)) continue for p in fl.parentrevs(fr): if 0 <= p and p not in lowestchild: lowestchild[p] = fr backrevref[fr] = rev s.add(rev) # Post-processing of all filerevs we skipped because they were # filtered. If such filerevs have known and unfiltered children, this # means they have an unfiltered appearance out there. We'll use linkrev # adjustment to find one of these appearances. The lowest known child # will be used as a starting point because it is the best upper-bound we # have. # # This approach will fail when an unfiltered but linkrev-shadowed # appearance exists in a head changeset without unfiltered filerev # children anywhere. while delayed: # must be a descending iteration. To slowly fill lowest child # information that is of potential use by the next item. fr, rev = delayed.pop() lkr = rev child = lowestchild.get(fr) if child is None: # search for existence of this file revision in a head revision. # There are three possibilities: # - the revision exists in a head and we can find an # introduction from there, # - the revision does not exist in a head because it has been # changed since its introduction: we would have found a child # and be in the other 'else' clause, # - all versions of the revision are hidden. if lowesthead is None: lowesthead = {} for h in repo.heads(): fnode = repo[h].manifest().get(f) if fnode is not None: lowesthead[fl.rev(fnode)] = h headrev = lowesthead.get(fr) if headrev is None: # content is nowhere unfiltered continue rev = repo[headrev][f].introrev() else: # the lowest known child is a good upper bound childcrev = backrevref[child] # XXX this does not guarantee returning the lowest # introduction of this revision, but this gives a # result which is a good start and will fit in most # cases. We probably need to fix the multiple # introductions case properly (report each # introduction, even for identical file revisions) # once and for all at some point anyway. for p in repo[childcrev][f].parents(): if p.filerev() == fr: rev = p.rev() break if rev == lkr: # no shadowed entry found # XXX This should never happen unless some manifest points # to biggish file revisions (like a revision that uses a # parent that never appears in the manifest ancestors) continue # Fill the data for the next iteration. for p in fl.parentrevs(fr): if 0 <= p and p not in lowestchild: lowestchild[p] = fr backrevref[fr] = rev s.add(rev) return subset & s def first(repo, subset, x): """``first(set, [n])`` 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 filename") % name) c = repo['.'] if l: x = getstring(l[0], _("%s expected a filename") % name) if x in c: cx = c[x] s = set(ctx.rev() for ctx in cx.ancestors(followfirst=followfirst)) # include the revision responsible for the most recent version s.add(cx.introrev()) else: return baseset() else: s = _revancestors(repo, baseset([c.rev()]), followfirst) return subset & s def follow(repo, subset, x): """``follow([file])`` An alias for ``::.`` (ancestors of the working directory's first parent). If a filename is specified, the history of the given file is followed, including copies. """ return _follow(repo, subset, x, 'follow') def _followfirst(repo, subset, x): # ``followfirst([file])`` # Like ``follow([file])`` but follows only the first parent of # every revision or file revision. return _follow(repo, subset, x, '_followfirst', followfirst=True) def getall(repo, subset, x): """``all()`` 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 def grep(repo, subset, x): """``grep(regex)`` 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, 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) 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. # i18n: "_matchfiles" is a keyword l = getargs(x, 1, -1, _("_matchfiles requires at least one argument")) pats, inc, exc = [], [], [] rev, default = None, None for arg in l: # i18n: "_matchfiles" is a keyword 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: # i18n: "_matchfiles" is a keyword 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: # i18n: "_matchfiles" is a keyword raise error.ParseError(_('_matchfiles expected at most one ' 'default mode')) default = value else: # i18n: "_matchfiles" is a keyword 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) def matches(x): for f in repo[x].files(): if m(f): return True return False return subset.filter(matches) def hasfile(repo, subset, x): """``file(pattern)`` 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)) def head(repo, subset, x): """``head()`` Changeset is a named branch head. """ # i18n: "head" is a keyword getargs(x, 0, 0, _("head takes no arguments")) hs = set() for b, ls in repo.branchmap().iteritems(): hs.update(repo[h].rev() for h in ls) return baseset(hs).filter(subset.__contains__) def heads(repo, subset, x): """``heads(set)`` Members of set with no children in set. """ s = getset(repo, subset, x) ps = parents(repo, subset, x) return s - ps def hidden(repo, subset, x): """``hidden()`` Hidden changesets. """ # i18n: "hidden" is a keyword getargs(x, 0, 0, _("hidden takes no arguments")) hiddenrevs = repoview.filterrevs(repo, 'visible') return subset & hiddenrevs def keyword(repo, subset, x): """``keyword(string)`` 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 util.any(kw in encoding.lower(t) for t in c.files() + [c.user(), c.description()]) return subset.filter(matches) def limit(repo, subset, x): """``limit(set, [n])`` First n members of set, defaulting to 1. """ # i18n: "limit" is a keyword l = getargs(x, 1, 2, _("limit requires one or two arguments")) try: lim = 1 if len(l) == 2: # i18n: "limit" is a keyword lim = int(getstring(l[1], _("limit requires a number"))) except (TypeError, ValueError): # i18n: "limit" is a keyword raise error.ParseError(_("limit expects a number")) ss = subset os = getset(repo, fullreposet(repo), l[0]) result = [] it = iter(os) for x in xrange(lim): try: y = it.next() if y in ss: result.append(y) except (StopIteration): break return baseset(result) def last(repo, subset, x): """``last(set, [n])`` 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")) ss = subset os = getset(repo, fullreposet(repo), l[0]) os.reverse() result = [] it = iter(os) for x in xrange(lim): try: y = it.next() if y in ss: result.append(y) except (StopIteration): break return baseset(result) def maxrev(repo, subset, x): """``max(set)`` Changeset with highest revision number in set. """ os = getset(repo, fullreposet(repo), x) if os: m = os.max() if m in subset: return baseset([m]) return baseset() def merge(repo, subset, x): """``merge()`` 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) def branchpoint(repo, subset, x): """``branchpoint()`` 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() 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) def minrev(repo, subset, x): """``min(set)`` Changeset with lowest revision number in set. """ os = getset(repo, fullreposet(repo), x) if os: m = os.min() if m in subset: return baseset([m]) return baseset() def modifies(repo, subset, x): """``modifies(pattern)`` 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) def named(repo, subset, x): """``named(namespace)`` 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 = _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 def node_(repo, subset, x): """``id(string)`` 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: rn = repo[n].rev() 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 def obsolete(repo, subset, x): """``obsolete()`` 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 def only(repo, subset, x): """``only(set, [set])`` 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)) return subset & results def origin(repo, subset, x): """``origin([set])`` 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]) return subset & o def outgoing(repo, subset, x): """``outgoing([path])`` Changesets not found in the specified destination repository, or the default push location. """ import hg # avoid start-up nasties # 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 def p1(repo, subset, x): """``p1([set])`` 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]) return subset & ps def p2(repo, subset, x): """``p2([set])`` 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]) return subset & ps def parents(repo, subset, x): """``parents([set])`` 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 for r in getset(repo, fullreposet(repo), x): ps.update(cl.parentrevs(r)) ps -= set([node.nullrev]) return subset & ps 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 def present(repo, subset, x): """``present(set)`` 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() def public(repo, subset, x): """``public()`` 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, cache=False) def remote(repo, subset, x): """``remote([id [,path]])`` 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. """ import hg # avoid start-up nasties # i18n: "remote" is a keyword l = getargs(x, 0, 2, _("remote takes one, two or no 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() def removes(repo, subset, x): """``removes(pattern)`` 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) def rev(repo, subset, x): """``rev(number)`` 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]) def matching(repo, subset, x): """``matching(revision [, field])`` 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) def reverse(repo, subset, x): """``reverse(set)`` Reverse order of set. """ l = getset(repo, subset, x) l.reverse() return l def roots(repo, subset, x): """``roots(set)`` Changesets in set with no parent changeset in set. """ s = getset(repo, fullreposet(repo), x) subset = baseset([r for r in s if r in subset]) cs = _children(repo, subset, s) return subset - cs def secret(repo, subset, x): """``secret()`` Changeset in secret phase.""" # i18n: "secret" is a keyword getargs(x, 0, 0, _("secret takes no arguments")) phase = repo._phasecache.phase target = phases.secret condition = lambda r: phase(repo, r) == target return subset.filter(condition, cache=False) def sort(repo, subset, x): """``sort(set[, [-]key...])`` 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 """ # i18n: "sort" is a keyword l = getargs(x, 1, 2, _("sort requires one or two arguments")) keys = "rev" if len(l) == 2: # i18n: "sort" is a keyword keys = getstring(l[1], _("sort spec must be a string")) s = l[0] keys = keys.split() l = [] def invert(s): return "".join(chr(255 - ord(c)) for c in s) revs = getset(repo, subset, s) if keys == ["rev"]: revs.sort() return revs elif keys == ["-rev"]: revs.sort(reverse=True) return revs for r in revs: c = repo[r] e = [] for k in keys: if k == 'rev': e.append(r) elif k == '-rev': e.append(-r) elif k == 'branch': e.append(c.branch()) elif k == '-branch': e.append(invert(c.branch())) elif k == 'desc': e.append(c.description()) elif k == '-desc': e.append(invert(c.description())) elif k in 'user author': e.append(c.user()) elif k in '-user -author': e.append(invert(c.user())) elif k == 'date': e.append(c.date()[0]) elif k == '-date': e.append(-c.date()[0]) else: raise error.ParseError(_("unknown sort key %r") % k) e.append(r) l.append(e) l.sort() return baseset([e[-1] for e in l]) def _stringmatcher(pattern): """ accepts a string, possibly starting with 're:' or 'literal:' prefix. returns the matcher name, pattern, and matcher function. missing or unknown prefixes are treated as literal matches. helper for tests: >>> def test(pattern, *tests): ... kind, pattern, matcher = _stringmatcher(pattern) ... return (kind, pattern, [bool(matcher(t)) for t in tests]) exact matching (no prefix): >>> test('abcdefg', 'abc', 'def', 'abcdefg') ('literal', 'abcdefg', [False, False, True]) regex matching ('re:' prefix) >>> test('re:a.+b', 'nomatch', 'fooadef', 'fooadefbar') ('re', 'a.+b', [False, False, True]) force exact matches ('literal:' prefix) >>> test('literal:re:foobar', 'foobar', 're:foobar') ('literal', 're:foobar', [False, True]) unknown prefixes are ignored and treated as literals >>> test('foo:bar', 'foo', 'bar', 'foo:bar') ('literal', 'foo:bar', [False, False, True]) """ if pattern.startswith('re:'): pattern = pattern[3:] try: regex = re.compile(pattern) except re.error, e: raise error.ParseError(_('invalid regular expression: %s') % e) return 're', pattern, regex.search elif pattern.startswith('literal:'): pattern = pattern[8:] return 'literal', pattern, pattern.__eq__ def _substringmatcher(pattern): kind, pattern, matcher = _stringmatcher(pattern) if kind == 'literal': matcher = lambda s: pattern in s return kind, pattern, matcher def tag(repo, subset, x): """``tag([name])`` 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 = _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 def tagged(repo, subset, x): return tag(repo, subset, x) def unstable(repo, subset, x): """``unstable()`` 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 def user(repo, subset, x): """``user(string)`` 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) # for internal use def _list(repo, subset, x): s = getstring(x, "internal error") if not s: return baseset() ls = [repo[r].rev() for r in s.split('\0')] s = subset return baseset([r for r in ls if r in s]) # for internal use 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 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]) symbols = { "adds": adds, "all": getall, "ancestor": ancestor, "ancestors": ancestors, "_firstancestors": _firstancestors, "author": author, "bisect": bisect, "bisected": bisected, "bookmark": bookmark, "branch": branch, "branchpoint": branchpoint, "bumped": bumped, "bundle": bundle, "children": children, "closed": closed, "contains": contains, "converted": converted, "date": date, "desc": desc, "descendants": descendants, "_firstdescendants": _firstdescendants, "destination": destination, "divergent": divergent, "draft": draft, "extinct": extinct, "extra": extra, "file": hasfile, "filelog": filelog, "first": first, "follow": follow, "_followfirst": _followfirst, "grep": grep, "head": head, "heads": heads, "hidden": hidden, "id": node_, "keyword": keyword, "last": last, "limit": limit, "_matchfiles": _matchfiles, "max": maxrev, "merge": merge, "min": minrev, "modifies": modifies, "named": named, "obsolete": obsolete, "only": only, "origin": origin, "outgoing": outgoing, "p1": p1, "p2": p2, "parents": parents, "present": present, "public": public, "remote": remote, "removes": removes, "rev": rev, "reverse": reverse, "roots": roots, "sort": sort, "secret": secret, "matching": matching, "tag": tag, "tagged": tagged, "user": user, "unstable": unstable, "_list": _list, "_intlist": _intlist, "_hexlist": _hexlist, } # 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([ "adds", "all", "ancestor", "ancestors", "_firstancestors", "author", "bisect", "bisected", "bookmark", "branch", "branchpoint", "bumped", "bundle", "children", "closed", "converted", "date", "desc", "descendants", "_firstdescendants", "destination", "divergent", "draft", "extinct", "extra", "file", "filelog", "first", "follow", "_followfirst", "head", "heads", "hidden", "id", "keyword", "last", "limit", "_matchfiles", "max", "merge", "min", "modifies", "obsolete", "only", "origin", "outgoing", "p1", "p2", "parents", "present", "public", "remote", "removes", "rev", "reverse", "roots", "sort", "secret", "matching", "tag", "tagged", "user", "unstable", "_list", "_intlist", "_hexlist", ]) methods = { "range": rangeset, "dagrange": dagrange, "string": stringset, "symbol": symbolset, "and": andset, "or": orset, "not": notset, "list": listset, "func": func, "ancestor": ancestorspec, "parent": parentspec, "parentpost": p1, "only": only, "onlypost": only, } 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': return optimize(('func', ('symbol', 'only'), ('list', x[1], x[2])), 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 == 'rangepre': return optimize(('range', ('string', '0'), x[1]), small) elif op == 'rangepost': return optimize(('range', x[1], ('string', 'tip')), small) elif op == 'negate': return optimize(('string', '-' + getstring(x[1], _("can't negate that"))), 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) # (::x and not ::y)/(not ::y and ::x) have a fast path def isonly(revs, bases): return ( revs[0] == 'func' and getstring(revs[1], _('not a symbol')) == 'ancestors' and bases[0] == 'not' and bases[1][0] == 'func' and getstring(bases[1][1], _('not a symbol')) == 'ancestors') w = min(wa, wb) if isonly(ta, tb): return w, ('func', ('symbol', 'only'), ('list', ta[2], tb[1][2])) if isonly(tb, ta): return w, ('func', ('symbol', 'only'), ('list', tb[2], ta[1][2])) if wa > wb: return w, (op, tb, ta) return w, (op, ta, tb) elif op == 'or': wa, ta = optimize(x[1], False) wb, tb = optimize(x[2], False) if wb < wa: wb, wa = wa, wb return max(wa, wb), (op, ta, tb) elif op == 'not': 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 list 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 == 'func': f = getstring(x[1], _("not a symbol")) 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 _aliasarg = ('func', ('symbol', '_aliasarg')) def _getaliasarg(tree): """If tree matches ('func', ('symbol', '_aliasarg'), ('string', X)) return X, None otherwise. """ if (len(tree) == 3 and tree[:2] == _aliasarg and tree[2][0] == 'string'): return tree[2][1] return None def _checkaliasarg(tree, known=None): """Check tree contains no _aliasarg construct or only ones which value is in known. Used to avoid alias placeholders injection. """ if isinstance(tree, tuple): arg = _getaliasarg(tree) if arg is not None and (not known or arg not in known): raise error.UnknownIdentifier('_aliasarg', []) for t in tree: _checkaliasarg(t, known) # 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 '._@$' or ord(c) > 127) def _tokenizealias(program, lookup=None): """Parse alias declaration/definition into a stream of tokens This allows symbol names to use also ``$`` as an initial letter (for backward compatibility), and callers of this function should examine whether ``$`` is used also for unexpected symbols or not. """ return tokenize(program, lookup=lookup, syminitletters=_aliassyminitletters) def _parsealiasdecl(decl): """Parse alias declaration ``decl`` This returns ``(name, tree, args, errorstr)`` tuple: - ``name``: of declared alias (may be ``decl`` itself at error) - ``tree``: parse result (or ``None`` at error) - ``args``: list of alias argument names (or None for symbol declaration) - ``errorstr``: detail about detected error (or None) >>> _parsealiasdecl('foo') ('foo', ('symbol', 'foo'), None, None) >>> _parsealiasdecl('$foo') ('$foo', None, None, "'$' not for alias arguments") >>> _parsealiasdecl('foo::bar') ('foo::bar', None, None, 'invalid format') >>> _parsealiasdecl('foo bar') ('foo bar', None, None, 'at 4: invalid token') >>> _parsealiasdecl('foo()') ('foo', ('func', ('symbol', 'foo')), [], None) >>> _parsealiasdecl('$foo()') ('$foo()', None, None, "'$' not for alias arguments") >>> _parsealiasdecl('foo($1, $2)') ('foo', ('func', ('symbol', 'foo')), ['$1', '$2'], None) >>> _parsealiasdecl('foo(bar_bar, baz.baz)') ('foo', ('func', ('symbol', 'foo')), ['bar_bar', 'baz.baz'], None) >>> _parsealiasdecl('foo($1, $2, nested($1, $2))') ('foo($1, $2, nested($1, $2))', None, None, 'invalid argument list') >>> _parsealiasdecl('foo(bar($1, $2))') ('foo(bar($1, $2))', None, None, 'invalid argument list') >>> _parsealiasdecl('foo("string")') ('foo("string")', None, None, 'invalid argument list') >>> _parsealiasdecl('foo($1, $2') ('foo($1, $2', None, None, 'at 10: unexpected token: end') >>> _parsealiasdecl('foo("string') ('foo("string', None, None, 'at 5: unterminated string') >>> _parsealiasdecl('foo($1, $2, $1)') ('foo', None, None, 'argument names collide with each other') """ p = parser.parser(_tokenizealias, elements) try: tree, pos = p.parse(decl) if (pos != len(decl)): raise error.ParseError(_('invalid token'), pos) if isvalidsymbol(tree): # "name = ...." style name = getsymbol(tree) if name.startswith('$'): return (decl, None, None, _("'$' not for alias arguments")) return (name, ('symbol', name), None, None) if isvalidfunc(tree): # "name(arg, ....) = ...." style name = getfuncname(tree) if name.startswith('$'): return (decl, None, None, _("'$' not for alias arguments")) args = [] for arg in getfuncargs(tree): if not isvalidsymbol(arg): return (decl, None, None, _("invalid argument list")) args.append(getsymbol(arg)) if len(args) != len(set(args)): return (name, None, None, _("argument names collide with each other")) return (name, ('func', ('symbol', name)), args, None) return (decl, None, None, _("invalid format")) except error.ParseError, inst: return (decl, None, None, parseerrordetail(inst)) def _parsealiasdefn(defn, args): """Parse alias definition ``defn`` This function also replaces alias argument references in the specified definition by ``_aliasarg(ARGNAME)``. ``args`` is a list of alias argument names, or None if the alias is declared as a symbol. This returns "tree" as parsing result. >>> args = ['$1', '$2', 'foo'] >>> print prettyformat(_parsealiasdefn('$1 or foo', args)) (or (func ('symbol', '_aliasarg') ('string', '$1')) (func ('symbol', '_aliasarg') ('string', 'foo'))) >>> try: ... _parsealiasdefn('$1 or $bar', args) ... except error.ParseError, inst: ... print parseerrordetail(inst) at 6: '$' not for alias arguments >>> args = ['$1', '$10', 'foo'] >>> print prettyformat(_parsealiasdefn('$10 or foobar', args)) (or (func ('symbol', '_aliasarg') ('string', '$10')) ('symbol', 'foobar')) >>> print prettyformat(_parsealiasdefn('"$1" or "foo"', args)) (or ('string', '$1') ('string', 'foo')) """ def tokenizedefn(program, lookup=None): if args: argset = set(args) else: argset = set() for t, value, pos in _tokenizealias(program, lookup=lookup): if t == 'symbol': if value in argset: # emulate tokenization of "_aliasarg('ARGNAME')": # "_aliasarg()" is an unknown symbol only used separate # alias argument placeholders from regular strings. yield ('symbol', '_aliasarg', pos) yield ('(', None, pos) yield ('string', value, pos) yield (')', None, pos) continue elif value.startswith('$'): raise error.ParseError(_("'$' not for alias arguments"), pos) yield (t, value, pos) p = parser.parser(tokenizedefn, elements) tree, pos = p.parse(defn) if pos != len(defn): raise error.ParseError(_('invalid token'), pos) return tree class revsetalias(object): # whether own `error` information is already shown or not. # this avoids showing same warning multiple times at each `findaliases`. warned = False def __init__(self, name, value): '''Aliases like: h = heads(default) b($1) = ancestors($1) - ancestors(default) ''' self.name, self.tree, self.args, self.error = _parsealiasdecl(name) if self.error: self.error = _('failed to parse the declaration of revset alias' ' "%s": %s') % (self.name, self.error) return try: self.replacement = _parsealiasdefn(value, self.args) # Check for placeholder injection _checkaliasarg(self.replacement, self.args) except error.ParseError, inst: self.error = _('failed to parse the definition of revset alias' ' "%s": %s') % (self.name, parseerrordetail(inst)) def _getalias(aliases, tree): """If tree looks like an unexpanded alias, return it. Return None otherwise. """ if isinstance(tree, tuple) and tree: if tree[0] == 'symbol' and len(tree) == 2: name = tree[1] alias = aliases.get(name) if alias and alias.args is None and alias.tree == tree: return alias if tree[0] == 'func' and len(tree) > 1: if tree[1][0] == 'symbol' and len(tree[1]) == 2: name = tree[1][1] alias = aliases.get(name) if alias and alias.args is not None and alias.tree == tree[:2]: return alias return None def _expandargs(tree, args): """Replace _aliasarg instances with the substitution value of the same name in args, recursively. """ if not tree or not isinstance(tree, tuple): return tree arg = _getaliasarg(tree) if arg is not None: return args[arg] return tuple(_expandargs(t, args) for t in tree) def _expandaliases(aliases, tree, expanding, cache): """Expand aliases in tree, recursively. 'aliases' is a dictionary mapping user defined aliases to revsetalias objects. """ if not isinstance(tree, tuple): # Do not expand raw strings return tree alias = _getalias(aliases, tree) if alias is not None: if alias.error: raise util.Abort(alias.error) if alias in expanding: raise error.ParseError(_('infinite expansion of revset alias "%s" ' 'detected') % alias.name) expanding.append(alias) if alias.name not in cache: cache[alias.name] = _expandaliases(aliases, alias.replacement, expanding, cache) result = cache[alias.name] expanding.pop() if alias.args is not None: l = getlist(tree[2]) if len(l) != len(alias.args): raise error.ParseError( _('invalid number of arguments: %s') % len(l)) l = [_expandaliases(aliases, a, [], cache) for a in l] result = _expandargs(result, dict(zip(alias.args, l))) else: result = tuple(_expandaliases(aliases, t, expanding, cache) for t in tree) return result def findaliases(ui, tree, showwarning=None): _checkaliasarg(tree) aliases = {} for k, v in ui.configitems('revsetalias'): alias = revsetalias(k, v) aliases[alias.name] = alias tree = _expandaliases(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): p = parser.parser(tokenize, elements) return p.parse(spec, lookup=lookup) def match(ui, spec, repo=None): if not spec: raise error.ParseError(_("empty query")) lookup = None if repo: lookup = repo.__contains__ tree, pos = parse(spec, lookup) if (pos != len(spec)): raise error.ParseError(_("invalid token"), pos) if ui: tree = findaliases(ui, tree, showwarning=ui.warn) tree = foldconcat(tree) weight, tree = optimize(tree, True) 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 util.Abort('unexpected revspec format character %s' % d) else: ret += c pos += 1 return ret def prettyformat(tree): def _prettyformat(tree, level, lines): if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): lines.append((level, str(tree))) else: lines.append((level, '(%s' % tree[0])) for s in tree[1:]: _prettyformat(s, level + 1, lines) lines[-1:] = [(lines[-1][0], lines[-1][1] + ')')] lines = [] _prettyformat(tree, 0, lines) output = '\n'.join((' '*l + s) for l, s in lines) return output 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 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 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) 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.""" return self.filter(other.__contains__, 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), cache=False) def filter(self, condition, 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. 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) 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=()): if not isinstance(data, list): data = list(data) self._list = data self._ascending = None @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) def reverse(self): if self._ascending is None: self._list.reverse() else: self._ascending = not self._ascending 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 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 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): """ condition: a function that decide whether a revision in the subset belongs to the revset or not. """ self._subset = subset self._condition = condition self._cache = {} def __contains__(self, x): c = self._cache if x not in c: v = c[x] = x in self._subset and self._condition(x) return v return c[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): for r in self: return True return False def __len__(self): # Basic implementation to be changed in future patches. 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 first(self): for x in self: return x return None def last(self): it = None if self._subset.isascending: it = self.fastdesc elif self._subset.isdescending: it = self.fastdesc if it is None: # slowly consume everything. This needs improvement it = lambda: reversed(list(self)) for x in it(): return x return None 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 """ 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(self._iterator()) return self._genlist def _iterator(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: def gen(): for r in self._r1: yield r inr1 = self._r1.__contains__ for r in self._r2: if not inr1(r): yield r gen = gen() else: iter1 = iter(self._r1) iter2 = iter(self._r2) gen = self._iterordered(self._ascending, iter1, iter2) return gen def __iter__(self): if self._ascending is None: if self._genlist: return iter(self._genlist) return iter(self._iterator()) self._trysetasclist() if self._ascending: it = self.fastasc else: it = self.fastdesc if it is None: # consume the gen and try again self._list return iter(self) return it() 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: self._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: self._iterordered(False, iter1(), iter2()) def _iterordered(self, 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 choice = max if ascending: choice = min try: # Consume both iterators in an ordered way until one is # empty while True: if val1 is None: val1 = iter1.next() if val2 is None: val2 = iter2.next() next = choice(val1, val2) yield next if val1 == next: val1 = None if val2 == next: 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 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 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 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): for r in self: 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 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() if self: return it().next() return 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() if self: return it().next() return None 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 _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 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 __contains__(self, rev): # assumes the given rev is valid hidden = self._hiddenrevs return not (hidden and rev in hidden) 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) other.sort(reverse=self.isdescending()) return other # tell hggettext to extract docstrings from these functions: i18nfunctions = symbols.values()