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comparison mercurial/grep.py @ 45700:c694b1841a5e

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grep: move prep() to grepsearcher class
author Yuya Nishihara <yuya@tcha.org>
date Wed, 09 Sep 2020 16:18:26 +0900
parents 888e633f0c1c
children c10c87c8fe79
comparison
equal deleted inserted replaced
45699:888e633f0c1c 45700:c694b1841a5e
12 12
13 from .i18n import _ 13 from .i18n import _
14 14
15 from . import ( 15 from . import (
16 error, 16 error,
17 match as matchmod,
17 pycompat, 18 pycompat,
18 scmutil, 19 scmutil,
19 util, 20 util,
20 ) 21 )
21 22
78 for i in pycompat.xrange(blo, bhi): 79 for i in pycompat.xrange(blo, bhi):
79 yield (b'+', b[i]) 80 yield (b'+', b[i])
80 81
81 82
82 class grepsearcher(object): 83 class grepsearcher(object):
83 """Search files and revisions for lines matching the given pattern""" 84 """Search files and revisions for lines matching the given pattern
84 85
85 def __init__(self, ui, repo, regexp): 86 Options:
87 - all_files to search unchanged files at that revision.
88 - diff to search files in the parent revision so diffs can be generated.
89 - follow to skip files across copies and renames.
90 """
91
92 def __init__(
93 self, ui, repo, regexp, all_files=False, diff=False, follow=False
94 ):
86 self._ui = ui 95 self._ui = ui
87 self._repo = repo 96 self._repo = repo
88 self._regexp = regexp 97 self._regexp = regexp
98 self._all_files = all_files
99 self._diff = diff
100 self._follow = follow
89 101
90 self._getfile = util.lrucachefunc(repo.file) 102 self._getfile = util.lrucachefunc(repo.file)
91 self._getrenamed = scmutil.getrenamedfn(repo) 103 self._getrenamed = scmutil.getrenamedfn(repo)
92 104
93 self._matches = {} 105 self._matches = {}
125 b'cannot search in censored file: ' 137 b'cannot search in censored file: '
126 b'%(filename)s:%(revnum)s\n' 138 b'%(filename)s:%(revnum)s\n'
127 ) 139 )
128 % {b'filename': fn, b'revnum': pycompat.bytestr(rev)} 140 % {b'filename': fn, b'revnum': pycompat.bytestr(rev)}
129 ) 141 )
142
143 def _prep(self, ctx, fmatch):
144 rev = ctx.rev()
145 pctx = ctx.p1()
146 self._matches.setdefault(rev, {})
147 if self._diff:
148 parent = pctx.rev()
149 self._matches.setdefault(parent, {})
150 files = self._revfiles.setdefault(rev, [])
151 if rev is None:
152 # in `hg grep pattern`, 2/3 of the time is spent is spent in
153 # pathauditor checks without this in mozilla-central
154 contextmanager = self._repo.wvfs.audit.cached
155 else:
156 contextmanager = util.nullcontextmanager
157 with contextmanager():
158 # TODO: maybe better to warn missing files?
159 if self._all_files:
160 fmatch = matchmod.badmatch(fmatch, lambda f, msg: None)
161 filenames = ctx.matches(fmatch)
162 else:
163 filenames = (f for f in ctx.files() if fmatch(f))
164 for fn in filenames:
165 # fn might not exist in the revision (could be a file removed by
166 # the revision). We could check `fn not in ctx` even when rev is
167 # None, but it's less racy to protect againt that in readfile.
168 if rev is not None and fn not in ctx:
169 continue
170
171 copy = None
172 if self._follow:
173 copy = self._getrenamed(fn, rev)
174 if copy:
175 self._copies.setdefault(rev, {})[fn] = copy
176 if fn in self._skip:
177 self._skip.add(copy)
178 if fn in self._skip:
179 continue
180 files.append(fn)
181
182 if fn not in self._matches[rev]:
183 self._grepbody(fn, rev, self._readfile(ctx, fn))
184
185 if self._diff:
186 pfn = copy or fn
187 if pfn not in self._matches[parent] and pfn in pctx:
188 self._grepbody(pfn, parent, self._readfile(pctx, pfn))