Mercurial > hg
view mercurial/fileset.py @ 15292:7fa471248185 stable
discovery: Fix error print mentioning a 'None' branch
When talking to old server discovery use heads of the 'None' branch to refer to
topological heads. This use of None should never make it to the end user.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
---|---|
date | Mon, 17 Oct 2011 11:37:59 +0200 |
parents | 35f5cfdd0427 |
children | 042e84e39dee |
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# fileset.py - file 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 parser, error, util, merge, re from i18n import _ elements = { "(": (20, ("group", 1, ")"), ("func", 1, ")")), "-": (5, ("negate", 19), ("minus", 5)), "not": (10, ("not", 10)), "!": (10, ("not", 10)), "and": (5, None, ("and", 5)), "&": (5, None, ("and", 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']) globchars = ".*{}[]?/\\" def tokenize(program): pos, l = 0, len(program) while pos < l: c = program[pos] if c.isspace(): # skip inter-token whitespace pass 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) elif c.isalnum() or c in globchars or ord(c) > 127: # gather up a symbol/keyword s = pos pos += 1 while pos < l: # find end of symbol d = program[pos] if not (d.isalnum() or d in globchars or ord(d) > 127): break pos += 1 sym = program[s:pos] if sym in keywords: # operator keywords yield (sym, None, s) else: yield ('symbol', sym, s) pos -= 1 else: raise error.ParseError(_("syntax error"), pos) pos += 1 yield ('end', None, pos) parse = parser.parser(tokenize, elements).parse def getstring(x, err): if x and (x[0] == 'string' or x[0] == 'symbol'): return x[1] raise error.ParseError(err) def getset(mctx, x): if not x: raise error.ParseError(_("missing argument")) return methods[x[0]](mctx, *x[1:]) def stringset(mctx, x): m = mctx.matcher([x]) return [f for f in mctx.subset if m(f)] def andset(mctx, x, y): return getset(mctx.narrow(getset(mctx, x)), y) def orset(mctx, x, y): # needs optimizing xl = getset(mctx, x) yl = getset(mctx, y) return xl + [f for f in yl if f not in xl] def notset(mctx, x): s = set(getset(mctx, x)) return [r for r in mctx.subset if r not in s] def listset(mctx, a, b): raise error.ParseError(_("can't use a list in this context")) def modified(mctx, x): """``modified()`` File that is modified according to status. """ # i18n: "modified" is a keyword getargs(x, 0, 0, _("modified takes no arguments")) s = mctx.status()[0] return [f for f in mctx.subset if f in s] def added(mctx, x): """``added()`` File that is added according to status. """ # i18n: "added" is a keyword getargs(x, 0, 0, _("added takes no arguments")) s = mctx.status()[1] return [f for f in mctx.subset if f in s] def removed(mctx, x): """``removed()`` File that is removed according to status. """ # i18n: "removed" is a keyword getargs(x, 0, 0, _("removed takes no arguments")) s = mctx.status()[2] return [f for f in mctx.subset if f in s] def deleted(mctx, x): """``deleted()`` File that is deleted according to status. """ # i18n: "deleted" is a keyword getargs(x, 0, 0, _("deleted takes no arguments")) s = mctx.status()[3] return [f for f in mctx.subset if f in s] def unknown(mctx, x): """``unknown()`` File that is unknown according to status. These files will only be considered if this predicate is used. """ # i18n: "unknown" is a keyword getargs(x, 0, 0, _("unknown takes no arguments")) s = mctx.status()[4] return [f for f in mctx.subset if f in s] def ignored(mctx, x): """``ignored()`` File that is ignored according to status. These files will only be considered if this predicate is used. """ # i18n: "ignored" is a keyword getargs(x, 0, 0, _("ignored takes no arguments")) s = mctx.status()[5] return [f for f in mctx.subset if f in s] def clean(mctx, x): """``clean()`` File that is clean according to status. """ # i18n: "clean" is a keyword getargs(x, 0, 0, _("clean takes no arguments")) s = mctx.status()[6] return [f for f in mctx.subset if f in s] def func(mctx, a, b): if a[0] == 'symbol' and a[1] in symbols: return symbols[a[1]](mctx, b) raise error.ParseError(_("not a function: %s") % a[1]) 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 len(l) > max: raise error.ParseError(err) return l def binary(mctx, x): """``binary()`` File that appears to be binary (contains NUL bytes). """ # i18n: "binary" is a keyword getargs(x, 0, 0, _("binary takes no arguments")) return [f for f in mctx.subset if util.binary(mctx.ctx[f].data())] def exec_(mctx, x): """``exec()`` File that is marked as executable. """ # i18n: "exec" is a keyword getargs(x, 0, 0, _("exec takes no arguments")) return [f for f in mctx.subset if mctx.ctx.flags(f) == 'x'] def symlink(mctx, x): """``symlink()`` File that is marked as a symlink. """ # i18n: "symlink" is a keyword getargs(x, 0, 0, _("symlink takes no arguments")) return [f for f in mctx.subset if mctx.ctx.flags(f) == 'l'] def resolved(mctx, x): """``resolved()`` File that is marked resolved according to the resolve state. """ # i18n: "resolved" is a keyword getargs(x, 0, 0, _("resolved takes no arguments")) if mctx.ctx.rev() is not None: return [] ms = merge.mergestate(mctx.ctx._repo) return [f for f in mctx.subset if f in ms and ms[f] == 'r'] def unresolved(mctx, x): """``unresolved()`` File that is marked unresolved according to the resolve state. """ # i18n: "unresolved" is a keyword getargs(x, 0, 0, _("unresolved takes no arguments")) if mctx.ctx.rev() is not None: return [] ms = merge.mergestate(mctx.ctx._repo) return [f for f in mctx.subset if f in ms and ms[f] == 'u'] def hgignore(mctx, x): """``hgignore()`` File that matches the active .hgignore pattern. """ getargs(x, 0, 0, _("hgignore takes no arguments")) ignore = mctx.ctx._repo.dirstate._ignore return [f for f in mctx.subset if ignore(f)] def grep(mctx, x): """``grep(regex)`` File contains the given regular expression. """ pat = getstring(x, _("grep requires a pattern")) r = re.compile(pat) return [f for f in mctx.subset if r.search(mctx.ctx[f].data())] _units = dict(k=2**10, K=2**10, kB=2**10, KB=2**10, M=2**20, MB=2**20, G=2**30, GB=2**30) def _sizetoint(s): try: s = s.strip() for k, v in _units.items(): if s.endswith(k): return int(float(s[:-len(k)]) * v) return int(s) except ValueError: raise error.ParseError(_("couldn't parse size: %s") % s) def _sizetomax(s): try: s = s.strip() for k, v in _units.items(): if s.endswith(k): # max(4k) = 5k - 1, max(4.5k) = 4.6k - 1 n = s[:-len(k)] inc = 1.0 if "." in n: inc /= 10 ** len(n.split(".")[1]) return int((float(n) + inc) * v) - 1 # no extension, this is a precise value return int(s) except ValueError: raise error.ParseError(_("couldn't parse size: %s") % s) def size(mctx, x): """``size(expression)`` File size matches the given expression. Examples: - 1k (files from 1024 to 2047 bytes) - < 20k (files less than 20480 bytes) - >= .5MB (files at least 524288 bytes) - 4k - 1MB (files from 4096 bytes to 1048576 bytes) """ # i18n: "size" is a keyword expr = getstring(x, _("size requires an expression")).strip() if '-' in expr: # do we have a range? a, b = expr.split('-', 1) a = _sizetoint(a) b = _sizetoint(b) m = lambda x: x >= a and x <= b elif expr.startswith("<="): a = _sizetoint(expr[2:]) m = lambda x: x <= a elif expr.startswith("<"): a = _sizetoint(expr[1:]) m = lambda x: x < a elif expr.startswith(">="): a = _sizetoint(expr[2:]) m = lambda x: x >= a elif expr.startswith(">"): a = _sizetoint(expr[1:]) m = lambda x: x > a elif expr[0].isdigit or expr[0] == '.': a = _sizetoint(expr) b = _sizetomax(expr) m = lambda x: x >= a and x <= b else: raise error.ParseError(_("couldn't parse size: %s") % expr) return [f for f in mctx.subset if m(mctx.ctx[f].size())] def encoding(mctx, x): """``encoding(name)`` File can be successfully decoded with the given character encoding. May not be useful for encodings other than ASCII and UTF-8. """ # i18n: "encoding" is a keyword enc = getstring(x, _("encoding requires an encoding name")) s = [] for f in mctx.subset: d = mctx.ctx[f].data() try: d.decode(enc) except LookupError: raise util.Abort(_("unknown encoding '%s'") % enc) except UnicodeDecodeError: continue s.append(f) return s def copied(mctx, x): """``copied()`` File that is recorded as being copied. """ # i18n: "copied" is a keyword getargs(x, 0, 0, _("copied takes no arguments")) s = [] for f in mctx.subset: p = mctx.ctx[f].parents() if p and p[0].path() != f: s.append(f) return s symbols = { 'added': added, 'binary': binary, 'clean': clean, 'copied': copied, 'deleted': deleted, 'encoding': encoding, 'exec': exec_, 'grep': grep, 'ignored': ignored, 'hgignore': hgignore, 'modified': modified, 'removed': removed, 'resolved': resolved, 'size': size, 'symlink': symlink, 'unknown': unknown, 'unresolved': unresolved, } methods = { 'string': stringset, 'symbol': stringset, 'and': andset, 'or': orset, 'list': listset, 'group': getset, 'not': notset, 'func': func, } class matchctx(object): def __init__(self, ctx, subset=None, status=None): self.ctx = ctx self.subset = subset self._status = status def status(self): return self._status def matcher(self, patterns): return self.ctx.match(patterns) def filter(self, files): return [f for f in files if f in self.subset] def narrow(self, files): return matchctx(self.ctx, self.filter(files), self._status) def _intree(funcs, tree): if isinstance(tree, tuple): if tree[0] == 'func' and tree[1][0] == 'symbol': if tree[1][1] in funcs: return True for s in tree[1:]: if _intree(funcs, s): return True return False def getfileset(ctx, expr): tree, pos = parse(expr) if (pos != len(expr)): raise error.ParseError(_("invalid token"), pos) # do we need status info? if _intree(['modified', 'added', 'removed', 'deleted', 'unknown', 'ignored', 'clean'], tree): unknown = _intree(['unknown'], tree) ignored = _intree(['ignored'], tree) r = ctx._repo status = r.status(ctx.p1(), ctx, unknown=unknown, ignored=ignored, clean=True) subset = [] for c in status: subset.extend(c) else: status = None subset = ctx.walk(ctx.match([])) return getset(matchctx(ctx, subset, status), tree) # tell hggettext to extract docstrings from these functions: i18nfunctions = symbols.values()