templates: add filter to reverse list
The filter supports only lists because for lists, it’s straightforward to
implement. Reversing text doesn’t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
# logcmdutil.py - utility for log-like commands
#
# Copyright 2005-2007 Olivia Mackall <olivia@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 itertools
import os
import posixpath
from .i18n import _
from .node import nullrev, wdirrev
from .thirdparty import attr
from . import (
dagop,
error,
formatter,
graphmod,
match as matchmod,
mdiff,
merge,
patch,
pathutil,
pycompat,
revset,
revsetlang,
scmutil,
smartset,
templatekw,
templater,
util,
)
from .utils import (
dateutil,
stringutil,
)
if pycompat.TYPE_CHECKING:
from typing import (
Any,
Callable,
Dict,
Optional,
Sequence,
Tuple,
)
for t in (Any, Callable, Dict, Optional, Tuple):
assert t
def getlimit(opts):
"""get the log limit according to option -l/--limit"""
limit = opts.get(b'limit')
if limit:
try:
limit = int(limit)
except ValueError:
raise error.InputError(_(b'limit must be a positive integer'))
if limit <= 0:
raise error.InputError(_(b'limit must be positive'))
else:
limit = None
return limit
def diff_parent(ctx):
"""get the context object to use as parent when diffing
If diff.merge is enabled, an overlayworkingctx of the auto-merged parents will be returned.
"""
repo = ctx.repo()
if repo.ui.configbool(b"diff", b"merge") and ctx.p2().rev() != nullrev:
# avoid cycle context -> subrepo -> cmdutil -> logcmdutil
from . import context
wctx = context.overlayworkingctx(repo)
wctx.setbase(ctx.p1())
with repo.ui.configoverride(
{
(
b"ui",
b"forcemerge",
): b"internal:merge3-lie-about-conflicts",
},
b"merge-diff",
):
with repo.ui.silent():
merge.merge(ctx.p2(), wc=wctx)
return wctx
else:
return ctx.p1()
def diffordiffstat(
ui,
repo,
diffopts,
ctx1,
ctx2,
match,
changes=None,
stat=False,
fp=None,
graphwidth=0,
prefix=b'',
root=b'',
listsubrepos=False,
hunksfilterfn=None,
):
'''show diff or diffstat.'''
if root:
relroot = pathutil.canonpath(repo.root, repo.getcwd(), root)
else:
relroot = b''
copysourcematch = None
def compose(f, g):
return lambda x: f(g(x))
def pathfn(f):
return posixpath.join(prefix, f)
if relroot != b'':
# XXX relative roots currently don't work if the root is within a
# subrepo
uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
uirelroot = uipathfn(pathfn(relroot))
relroot += b'/'
for matchroot in match.files():
if not matchroot.startswith(relroot):
ui.warn(
_(b'warning: %s not inside relative root %s\n')
% (uipathfn(pathfn(matchroot)), uirelroot)
)
relrootmatch = scmutil.match(ctx2, pats=[relroot], default=b'path')
match = matchmod.intersectmatchers(match, relrootmatch)
copysourcematch = relrootmatch
checkroot = repo.ui.configbool(
b'devel', b'all-warnings'
) or repo.ui.configbool(b'devel', b'check-relroot')
def relrootpathfn(f):
if checkroot and not f.startswith(relroot):
raise AssertionError(
b"file %s doesn't start with relroot %s" % (f, relroot)
)
return f[len(relroot) :]
pathfn = compose(relrootpathfn, pathfn)
if stat:
diffopts = diffopts.copy(context=0, noprefix=False)
width = 80
if not ui.plain():
width = ui.termwidth() - graphwidth
# If an explicit --root was given, don't respect ui.relative-paths
if not relroot:
pathfn = compose(scmutil.getuipathfn(repo), pathfn)
chunks = ctx2.diff(
ctx1,
match,
changes,
opts=diffopts,
pathfn=pathfn,
copysourcematch=copysourcematch,
hunksfilterfn=hunksfilterfn,
)
if fp is not None or ui.canwritewithoutlabels():
out = fp or ui
if stat:
chunks = [patch.diffstat(util.iterlines(chunks), width=width)]
for chunk in util.filechunkiter(util.chunkbuffer(chunks)):
out.write(chunk)
else:
if stat:
chunks = patch.diffstatui(util.iterlines(chunks), width=width)
else:
chunks = patch.difflabel(
lambda chunks, **kwargs: chunks, chunks, opts=diffopts
)
if ui.canbatchlabeledwrites():
def gen():
for chunk, label in chunks:
yield ui.label(chunk, label=label)
for chunk in util.filechunkiter(util.chunkbuffer(gen())):
ui.write(chunk)
else:
for chunk, label in chunks:
ui.write(chunk, label=label)
node2 = ctx2.node()
for subpath, sub in scmutil.itersubrepos(ctx1, ctx2):
tempnode2 = node2
try:
if node2 is not None:
tempnode2 = ctx2.substate[subpath][1]
except KeyError:
# A subrepo that existed in node1 was deleted between node1 and
# node2 (inclusive). Thus, ctx2's substate won't contain that
# subpath. The best we can do is to ignore it.
tempnode2 = None
submatch = matchmod.subdirmatcher(subpath, match)
subprefix = repo.wvfs.reljoin(prefix, subpath)
if listsubrepos or match.exact(subpath) or any(submatch.files()):
sub.diff(
ui,
diffopts,
tempnode2,
submatch,
changes=changes,
stat=stat,
fp=fp,
prefix=subprefix,
)
class changesetdiffer:
"""Generate diff of changeset with pre-configured filtering functions"""
def _makefilematcher(self, ctx):
return scmutil.matchall(ctx.repo())
def _makehunksfilter(self, ctx):
return None
def showdiff(self, ui, ctx, diffopts, graphwidth=0, stat=False):
diffordiffstat(
ui,
ctx.repo(),
diffopts,
diff_parent(ctx),
ctx,
match=self._makefilematcher(ctx),
stat=stat,
graphwidth=graphwidth,
hunksfilterfn=self._makehunksfilter(ctx),
)
def changesetlabels(ctx):
labels = [b'log.changeset', b'changeset.%s' % ctx.phasestr()]
if ctx.obsolete():
labels.append(b'changeset.obsolete')
if ctx.isunstable():
labels.append(b'changeset.unstable')
for instability in ctx.instabilities():
labels.append(b'instability.%s' % instability)
return b' '.join(labels)
class changesetprinter:
'''show changeset information when templating not requested.'''
def __init__(self, ui, repo, differ=None, diffopts=None, buffered=False):
self.ui = ui
self.repo = repo
self.buffered = buffered
self._differ = differ or changesetdiffer()
self._diffopts = patch.diffallopts(ui, diffopts)
self._includestat = diffopts and diffopts.get(b'stat')
self._includediff = diffopts and diffopts.get(b'patch')
self.header = {}
self.hunk = {}
self.lastheader = None
self.footer = None
self._columns = templatekw.getlogcolumns()
def flush(self, ctx):
rev = ctx.rev()
if rev in self.header:
h = self.header[rev]
if h != self.lastheader:
self.lastheader = h
self.ui.write(h)
del self.header[rev]
if rev in self.hunk:
self.ui.write(self.hunk[rev])
del self.hunk[rev]
def close(self):
if self.footer:
self.ui.write(self.footer)
def show(self, ctx, copies=None, **props):
props = pycompat.byteskwargs(props)
if self.buffered:
self.ui.pushbuffer(labeled=True)
self._show(ctx, copies, props)
self.hunk[ctx.rev()] = self.ui.popbuffer()
else:
self._show(ctx, copies, props)
def _show(self, ctx, copies, props):
'''show a single changeset or file revision'''
changenode = ctx.node()
graphwidth = props.get(b'graphwidth', 0)
if self.ui.quiet:
self.ui.write(
b"%s\n" % scmutil.formatchangeid(ctx), label=b'log.node'
)
return
columns = self._columns
self.ui.write(
columns[b'changeset'] % scmutil.formatchangeid(ctx),
label=changesetlabels(ctx),
)
# branches are shown first before any other names due to backwards
# compatibility
branch = ctx.branch()
# don't show the default branch name
if branch != b'default':
self.ui.write(columns[b'branch'] % branch, label=b'log.branch')
for nsname, ns in self.repo.names.items():
# branches has special logic already handled above, so here we just
# skip it
if nsname == b'branches':
continue
# we will use the templatename as the color name since those two
# should be the same
for name in ns.names(self.repo, changenode):
self.ui.write(ns.logfmt % name, label=b'log.%s' % ns.colorname)
if self.ui.debugflag:
self.ui.write(
columns[b'phase'] % ctx.phasestr(), label=b'log.phase'
)
for pctx in scmutil.meaningfulparents(self.repo, ctx):
label = b'log.parent changeset.%s' % pctx.phasestr()
self.ui.write(
columns[b'parent'] % scmutil.formatchangeid(pctx), label=label
)
if self.ui.debugflag:
mnode = ctx.manifestnode()
if mnode is None:
mnode = self.repo.nodeconstants.wdirid
mrev = wdirrev
else:
mrev = self.repo.manifestlog.rev(mnode)
self.ui.write(
columns[b'manifest']
% scmutil.formatrevnode(self.ui, mrev, mnode),
label=b'ui.debug log.manifest',
)
self.ui.write(columns[b'user'] % ctx.user(), label=b'log.user')
self.ui.write(
columns[b'date'] % dateutil.datestr(ctx.date()), label=b'log.date'
)
if ctx.isunstable():
instabilities = ctx.instabilities()
self.ui.write(
columns[b'instability'] % b', '.join(instabilities),
label=b'log.instability',
)
elif ctx.obsolete():
self._showobsfate(ctx)
self._exthook(ctx)
if self.ui.debugflag:
for key, value in zip(
[b'files', b'files+', b'files-'],
[ctx.filesmodified(), ctx.filesadded(), ctx.filesremoved()],
):
if value:
self.ui.write(
columns[key] % b" ".join(value),
label=b'ui.debug log.files',
)
elif ctx.files() and self.ui.verbose:
self.ui.write(
columns[b'files'] % b" ".join(ctx.files()),
label=b'ui.note log.files',
)
if copies and self.ui.verbose:
copies = [b'%s (%s)' % c for c in copies]
self.ui.write(
columns[b'copies'] % b' '.join(copies),
label=b'ui.note log.copies',
)
extra = ctx.extra()
if extra and self.ui.debugflag:
for key, value in sorted(extra.items()):
self.ui.write(
columns[b'extra'] % (key, stringutil.escapestr(value)),
label=b'ui.debug log.extra',
)
description = ctx.description().strip()
if description:
if self.ui.verbose:
self.ui.write(
_(b"description:\n"), label=b'ui.note log.description'
)
self.ui.write(description, label=b'ui.note log.description')
self.ui.write(b"\n\n")
else:
self.ui.write(
columns[b'summary'] % stringutil.firstline(description),
label=b'log.summary',
)
self.ui.write(b"\n")
self._showpatch(ctx, graphwidth)
def _showobsfate(self, ctx):
# TODO: do not depend on templater
tres = formatter.templateresources(self.repo.ui, self.repo)
t = formatter.maketemplater(
self.repo.ui,
b'{join(obsfate, "\n")}',
defaults=templatekw.keywords,
resources=tres,
)
obsfate = t.renderdefault({b'ctx': ctx}).splitlines()
if obsfate:
for obsfateline in obsfate:
self.ui.write(
self._columns[b'obsolete'] % obsfateline,
label=b'log.obsfate',
)
def _exthook(self, ctx):
"""empty method used by extension as a hook point"""
def _showpatch(self, ctx, graphwidth=0):
if self._includestat:
self._differ.showdiff(
self.ui, ctx, self._diffopts, graphwidth, stat=True
)
if self._includestat and self._includediff:
self.ui.write(b"\n")
if self._includediff:
self._differ.showdiff(
self.ui, ctx, self._diffopts, graphwidth, stat=False
)
if self._includestat or self._includediff:
self.ui.write(b"\n")
class changesetformatter(changesetprinter):
"""Format changeset information by generic formatter"""
def __init__(
self, ui, repo, fm, differ=None, diffopts=None, buffered=False
):
changesetprinter.__init__(self, ui, repo, differ, diffopts, buffered)
self._diffopts = patch.difffeatureopts(ui, diffopts, git=True)
self._fm = fm
def close(self):
self._fm.end()
def _show(self, ctx, copies, props):
'''show a single changeset or file revision'''
fm = self._fm
fm.startitem()
fm.context(ctx=ctx)
fm.data(rev=scmutil.intrev(ctx), node=fm.hexfunc(scmutil.binnode(ctx)))
datahint = fm.datahint()
if self.ui.quiet and not datahint:
return
fm.data(
branch=ctx.branch(),
phase=ctx.phasestr(),
user=ctx.user(),
date=fm.formatdate(ctx.date()),
desc=ctx.description(),
bookmarks=fm.formatlist(ctx.bookmarks(), name=b'bookmark'),
tags=fm.formatlist(ctx.tags(), name=b'tag'),
parents=fm.formatlist(
[fm.hexfunc(c.node()) for c in ctx.parents()], name=b'node'
),
)
if self.ui.debugflag or b'manifest' in datahint:
fm.data(
manifest=fm.hexfunc(
ctx.manifestnode() or self.repo.nodeconstants.wdirid
)
)
if self.ui.debugflag or b'extra' in datahint:
fm.data(extra=fm.formatdict(ctx.extra()))
if (
self.ui.debugflag
or b'modified' in datahint
or b'added' in datahint
or b'removed' in datahint
):
fm.data(
modified=fm.formatlist(ctx.filesmodified(), name=b'file'),
added=fm.formatlist(ctx.filesadded(), name=b'file'),
removed=fm.formatlist(ctx.filesremoved(), name=b'file'),
)
verbose = not self.ui.debugflag and self.ui.verbose
if verbose or b'files' in datahint:
fm.data(files=fm.formatlist(ctx.files(), name=b'file'))
if verbose and copies or b'copies' in datahint:
fm.data(
copies=fm.formatdict(copies or {}, key=b'name', value=b'source')
)
if self._includestat or b'diffstat' in datahint:
self.ui.pushbuffer()
self._differ.showdiff(self.ui, ctx, self._diffopts, stat=True)
fm.data(diffstat=self.ui.popbuffer())
if self._includediff or b'diff' in datahint:
self.ui.pushbuffer()
self._differ.showdiff(self.ui, ctx, self._diffopts, stat=False)
fm.data(diff=self.ui.popbuffer())
class changesettemplater(changesetprinter):
"""format changeset information.
Note: there are a variety of convenience functions to build a
changesettemplater for common cases. See functions such as:
maketemplater, changesetdisplayer, buildcommittemplate, or other
functions that use changesest_templater.
"""
# Arguments before "buffered" used to be positional. Consider not
# adding/removing arguments before "buffered" to not break callers.
def __init__(
self, ui, repo, tmplspec, differ=None, diffopts=None, buffered=False
):
changesetprinter.__init__(self, ui, repo, differ, diffopts, buffered)
# tres is shared with _graphnodeformatter()
self._tresources = tres = formatter.templateresources(ui, repo)
self.t = formatter.loadtemplater(
ui,
tmplspec,
defaults=templatekw.keywords,
resources=tres,
cache=templatekw.defaulttempl,
)
self._counter = itertools.count()
self._tref = tmplspec.ref
self._parts = {
b'header': b'',
b'footer': b'',
tmplspec.ref: tmplspec.ref,
b'docheader': b'',
b'docfooter': b'',
b'separator': b'',
}
if tmplspec.mapfile:
# find correct templates for current mode, for backward
# compatibility with 'log -v/-q/--debug' using a mapfile
tmplmodes = [
(True, b''),
(self.ui.verbose, b'_verbose'),
(self.ui.quiet, b'_quiet'),
(self.ui.debugflag, b'_debug'),
]
for mode, postfix in tmplmodes:
for t in self._parts:
cur = t + postfix
if mode and cur in self.t:
self._parts[t] = cur
else:
partnames = [p for p in self._parts.keys() if p != tmplspec.ref]
m = formatter.templatepartsmap(tmplspec, self.t, partnames)
self._parts.update(m)
if self._parts[b'docheader']:
self.ui.write(self.t.render(self._parts[b'docheader'], {}))
def close(self):
if self._parts[b'docfooter']:
if not self.footer:
self.footer = b""
self.footer += self.t.render(self._parts[b'docfooter'], {})
return super(changesettemplater, self).close()
def _show(self, ctx, copies, props):
'''show a single changeset or file revision'''
props = props.copy()
props[b'ctx'] = ctx
props[b'index'] = index = next(self._counter)
props[b'revcache'] = {b'copies': copies}
graphwidth = props.get(b'graphwidth', 0)
# write separator, which wouldn't work well with the header part below
# since there's inherently a conflict between header (across items) and
# separator (per item)
if self._parts[b'separator'] and index > 0:
self.ui.write(self.t.render(self._parts[b'separator'], {}))
# write header
if self._parts[b'header']:
h = self.t.render(self._parts[b'header'], props)
if self.buffered:
self.header[ctx.rev()] = h
else:
if self.lastheader != h:
self.lastheader = h
self.ui.write(h)
# write changeset metadata, then patch if requested
key = self._parts[self._tref]
self.ui.write(self.t.render(key, props))
self._exthook(ctx)
self._showpatch(ctx, graphwidth)
if self._parts[b'footer']:
if not self.footer:
self.footer = self.t.render(self._parts[b'footer'], props)
def templatespec(tmpl, mapfile):
assert not (tmpl and mapfile)
if mapfile:
return formatter.mapfile_templatespec(b'changeset', mapfile)
else:
return formatter.literal_templatespec(tmpl)
def _lookuptemplate(ui, tmpl, style):
"""Find the template matching the given template spec or style
See formatter.lookuptemplate() for details.
"""
# ui settings
if not tmpl and not style: # template are stronger than style
tmpl = ui.config(b'command-templates', b'log')
if tmpl:
return formatter.literal_templatespec(templater.unquotestring(tmpl))
else:
style = util.expandpath(ui.config(b'ui', b'style'))
if not tmpl and style:
mapfile = style
fp = None
if not os.path.split(mapfile)[0]:
(mapname, fp) = templater.try_open_template(
b'map-cmdline.' + mapfile
) or templater.try_open_template(mapfile)
if mapname:
mapfile = mapname
return formatter.mapfile_templatespec(b'changeset', mapfile, fp)
return formatter.lookuptemplate(ui, b'changeset', tmpl)
def maketemplater(ui, repo, tmpl, buffered=False):
"""Create a changesettemplater from a literal template 'tmpl'
byte-string."""
spec = formatter.literal_templatespec(tmpl)
return changesettemplater(ui, repo, spec, buffered=buffered)
def changesetdisplayer(ui, repo, opts, differ=None, buffered=False):
"""show one changeset using template or regular display.
Display format will be the first non-empty hit of:
1. option 'template'
2. option 'style'
3. [command-templates] setting 'log'
4. [ui] setting 'style'
If all of these values are either the unset or the empty string,
regular display via changesetprinter() is done.
"""
postargs = (differ, opts, buffered)
spec = _lookuptemplate(ui, opts.get(b'template'), opts.get(b'style'))
# machine-readable formats have slightly different keyword set than
# plain templates, which are handled by changesetformatter.
# note that {b'pickle', b'debug'} can also be added to the list if needed.
if spec.ref in {b'cbor', b'json'}:
fm = ui.formatter(b'log', opts)
return changesetformatter(ui, repo, fm, *postargs)
if not spec.ref and not spec.tmpl and not spec.mapfile:
return changesetprinter(ui, repo, *postargs)
return changesettemplater(ui, repo, spec, *postargs)
@attr.s
class walkopts:
"""Options to configure a set of revisions and file matcher factory
to scan revision/file history
"""
# raw command-line parameters, which a matcher will be built from
pats = attr.ib()
opts = attr.ib()
# a list of revset expressions to be traversed; if follow, it specifies
# the start revisions
revspec = attr.ib()
# miscellaneous queries to filter revisions (see "hg help log" for details)
bookmarks = attr.ib(default=attr.Factory(list))
branches = attr.ib(default=attr.Factory(list))
date = attr.ib(default=None)
keywords = attr.ib(default=attr.Factory(list))
no_merges = attr.ib(default=False)
only_merges = attr.ib(default=False)
prune_ancestors = attr.ib(default=attr.Factory(list))
users = attr.ib(default=attr.Factory(list))
# miscellaneous matcher arguments
include_pats = attr.ib(default=attr.Factory(list))
exclude_pats = attr.ib(default=attr.Factory(list))
# 0: no follow, 1: follow first, 2: follow both parents
follow = attr.ib(default=0)
# do not attempt filelog-based traversal, which may be fast but cannot
# include revisions where files were removed
force_changelog_traversal = attr.ib(default=False)
# filter revisions by file patterns, which should be disabled only if
# you want to include revisions where files were unmodified
filter_revisions_by_pats = attr.ib(default=True)
# sort revisions prior to traversal: 'desc', 'topo', or None
sort_revisions = attr.ib(default=None)
# limit number of changes displayed; None means unlimited
limit = attr.ib(default=None)
def parseopts(ui, pats, opts):
# type: (Any, Sequence[bytes], Dict[bytes, Any]) -> walkopts
"""Parse log command options into walkopts
The returned walkopts will be passed in to getrevs() or makewalker().
"""
if opts.get(b'follow_first'):
follow = 1
elif opts.get(b'follow'):
follow = 2
else:
follow = 0
if opts.get(b'graph'):
if ui.configbool(b'experimental', b'log.topo'):
sort_revisions = b'topo'
else:
sort_revisions = b'desc'
else:
sort_revisions = None
return walkopts(
pats=pats,
opts=opts,
revspec=opts.get(b'rev', []),
bookmarks=opts.get(b'bookmark', []),
# branch and only_branch are really aliases and must be handled at
# the same time
branches=opts.get(b'branch', []) + opts.get(b'only_branch', []),
date=opts.get(b'date'),
keywords=opts.get(b'keyword', []),
no_merges=bool(opts.get(b'no_merges')),
only_merges=bool(opts.get(b'only_merges')),
prune_ancestors=opts.get(b'prune', []),
users=opts.get(b'user', []),
include_pats=opts.get(b'include', []),
exclude_pats=opts.get(b'exclude', []),
follow=follow,
force_changelog_traversal=bool(opts.get(b'removed')),
sort_revisions=sort_revisions,
limit=getlimit(opts),
)
def _makematcher(repo, revs, wopts):
"""Build matcher and expanded patterns from log options
If --follow, revs are the revisions to follow from.
Returns (match, pats, slowpath) where
- match: a matcher built from the given pats and -I/-X opts
- pats: patterns used (globs are expanded on Windows)
- slowpath: True if patterns aren't as simple as scanning filelogs
"""
# pats/include/exclude are passed to match.match() directly in
# _matchfiles() revset, but a log-like command should build its matcher
# with scmutil.match(). The difference is input pats are globbed on
# platforms without shell expansion (windows).
wctx = repo[None]
match, pats = scmutil.matchandpats(wctx, wopts.pats, wopts.opts)
slowpath = match.anypats() or (
not match.always() and wopts.force_changelog_traversal
)
if not slowpath:
if wopts.follow and wopts.revspec:
# There may be the case that a path doesn't exist in some (but
# not all) of the specified start revisions, but let's consider
# the path is valid. Missing files will be warned by the matcher.
startctxs = [repo[r] for r in revs]
for f in match.files():
found = False
for c in startctxs:
if f in c:
found = True
elif c.hasdir(f):
# If a directory exists in any of the start revisions,
# take the slow path.
found = slowpath = True
if not found:
raise error.StateError(
_(
b'cannot follow file not in any of the specified '
b'revisions: "%s"'
)
% f
)
elif wopts.follow:
for f in match.files():
if f not in wctx:
# If the file exists, it may be a directory, so let it
# take the slow path.
if os.path.exists(repo.wjoin(f)):
slowpath = True
continue
else:
raise error.StateError(
_(
b'cannot follow file not in parent '
b'revision: "%s"'
)
% f
)
filelog = repo.file(f)
if not filelog:
# A file exists in wdir but not in history, which means
# the file isn't committed yet.
raise error.StateError(
_(b'cannot follow nonexistent file: "%s"') % f
)
else:
for f in match.files():
filelog = repo.file(f)
if not filelog:
# A zero count may be a directory or deleted file, so
# try to find matching entries on the slow path.
slowpath = True
# We decided to fall back to the slowpath because at least one
# of the paths was not a file. Check to see if at least one of them
# existed in history - in that case, we'll continue down the
# slowpath; otherwise, we can turn off the slowpath
if slowpath:
for path in match.files():
if not path or path in repo.store:
break
else:
slowpath = False
return match, pats, slowpath
def _fileancestors(repo, revs, match, followfirst):
fctxs = []
for r in revs:
ctx = repo[r]
fctxs.extend(ctx[f].introfilectx() for f in ctx.walk(match))
# When displaying a revision with --patch --follow FILE, we have
# to know which file of the revision must be diffed. With
# --follow, we want the names of the ancestors of FILE in the
# revision, stored in "fcache". "fcache" is populated as a side effect
# of the graph traversal.
fcache = {}
def filematcher(ctx):
return scmutil.matchfiles(repo, fcache.get(scmutil.intrev(ctx), []))
def revgen():
for rev, cs in dagop.filectxancestors(fctxs, followfirst=followfirst):
fcache[rev] = [c.path() for c in cs]
yield rev
return smartset.generatorset(revgen(), iterasc=False), filematcher
def _makenofollowfilematcher(repo, pats, opts):
'''hook for extensions to override the filematcher for non-follow cases'''
return None
def revsingle(repo, revspec, default=b'.', localalias=None):
"""Resolves user-provided revset(s) into a single revision.
This just wraps the lower-level scmutil.revsingle() in order to raise an
exception indicating user error.
"""
try:
return scmutil.revsingle(repo, revspec, default, localalias)
except error.RepoLookupError as e:
raise error.InputError(e.args[0], hint=e.hint)
def revpair(repo, revs):
"""Resolves user-provided revset(s) into two revisions.
This just wraps the lower-level scmutil.revpair() in order to raise an
exception indicating user error.
"""
try:
return scmutil.revpair(repo, revs)
except error.RepoLookupError as e:
raise error.InputError(e.args[0], hint=e.hint)
def revrange(repo, specs, localalias=None):
"""Resolves user-provided revset(s).
This just wraps the lower-level scmutil.revrange() in order to raise an
exception indicating user error.
"""
try:
return scmutil.revrange(repo, specs, localalias)
except error.RepoLookupError as e:
raise error.InputError(e.args[0], hint=e.hint)
_opt2logrevset = {
b'no_merges': (b'not merge()', None),
b'only_merges': (b'merge()', None),
b'_matchfiles': (None, b'_matchfiles(%ps)'),
b'date': (b'date(%s)', None),
b'branch': (b'branch(%s)', b'%lr'),
b'_patslog': (b'filelog(%s)', b'%lr'),
b'keyword': (b'keyword(%s)', b'%lr'),
b'prune': (b'ancestors(%s)', b'not %lr'),
b'user': (b'user(%s)', b'%lr'),
}
def _makerevset(repo, wopts, slowpath):
"""Return a revset string built from log options and file patterns"""
opts = {
b'branch': [b'literal:' + repo.lookupbranch(b) for b in wopts.branches],
b'date': wopts.date,
b'keyword': wopts.keywords,
b'no_merges': wopts.no_merges,
b'only_merges': wopts.only_merges,
b'prune': wopts.prune_ancestors,
b'user': [b'literal:' + v for v in wopts.users],
}
if wopts.filter_revisions_by_pats and slowpath:
# pats/include/exclude cannot be represented as separate
# revset expressions as their filtering logic applies at file
# level. For instance "-I a -X b" matches a revision touching
# "a" and "b" while "file(a) and not file(b)" does
# not. Besides, filesets are evaluated against the working
# directory.
matchargs = [b'r:', b'd:relpath']
for p in wopts.pats:
matchargs.append(b'p:' + p)
for p in wopts.include_pats:
matchargs.append(b'i:' + p)
for p in wopts.exclude_pats:
matchargs.append(b'x:' + p)
opts[b'_matchfiles'] = matchargs
elif wopts.filter_revisions_by_pats and not wopts.follow:
opts[b'_patslog'] = list(wopts.pats)
expr = []
for op, val in sorted(opts.items()):
if not val:
continue
revop, listop = _opt2logrevset[op]
if revop and b'%' not in revop:
expr.append(revop)
elif not listop:
expr.append(revsetlang.formatspec(revop, val))
else:
if revop:
val = [revsetlang.formatspec(revop, v) for v in val]
expr.append(revsetlang.formatspec(listop, val))
if wopts.bookmarks:
expr.append(
revsetlang.formatspec(
b'%lr',
[scmutil.format_bookmark_revspec(v) for v in wopts.bookmarks],
)
)
if expr:
expr = b'(' + b' and '.join(expr) + b')'
else:
expr = None
return expr
def _initialrevs(repo, wopts):
"""Return the initial set of revisions to be filtered or followed"""
if wopts.revspec:
revs = revrange(repo, wopts.revspec)
elif wopts.follow and repo.dirstate.p1() == repo.nullid:
revs = smartset.baseset()
elif wopts.follow:
revs = repo.revs(b'.')
else:
revs = smartset.spanset(repo)
revs.reverse()
return revs
def makewalker(repo, wopts):
# type: (Any, walkopts) -> Tuple[smartset.abstractsmartset, Optional[Callable[[Any], matchmod.basematcher]]]
"""Build (revs, makefilematcher) to scan revision/file history
- revs is the smartset to be traversed.
- makefilematcher is a function to map ctx to a matcher for that revision
"""
revs = _initialrevs(repo, wopts)
if not revs:
return smartset.baseset(), None
# TODO: might want to merge slowpath with wopts.force_changelog_traversal
match, pats, slowpath = _makematcher(repo, revs, wopts)
wopts = attr.evolve(wopts, pats=pats)
filematcher = None
if wopts.follow:
if slowpath or match.always():
revs = dagop.revancestors(repo, revs, followfirst=wopts.follow == 1)
else:
assert not wopts.force_changelog_traversal
revs, filematcher = _fileancestors(
repo, revs, match, followfirst=wopts.follow == 1
)
revs.reverse()
if filematcher is None:
filematcher = _makenofollowfilematcher(repo, wopts.pats, wopts.opts)
if filematcher is None:
def filematcher(ctx):
return match
expr = _makerevset(repo, wopts, slowpath)
if wopts.sort_revisions:
assert wopts.sort_revisions in {b'topo', b'desc'}
if wopts.sort_revisions == b'topo':
if not revs.istopo():
revs = dagop.toposort(revs, repo.changelog.parentrevs)
# TODO: try to iterate the set lazily
revs = revset.baseset(list(revs), istopo=True)
elif not (revs.isdescending() or revs.istopo()):
# User-specified revs might be unsorted
revs.sort(reverse=True)
if expr:
matcher = revset.match(None, expr)
revs = matcher(repo, revs)
if wopts.limit is not None:
revs = revs.slice(0, wopts.limit)
return revs, filematcher
def getrevs(repo, wopts):
# type: (Any, walkopts) -> Tuple[smartset.abstractsmartset, Optional[changesetdiffer]]
"""Return (revs, differ) where revs is a smartset
differ is a changesetdiffer with pre-configured file matcher.
"""
revs, filematcher = makewalker(repo, wopts)
if not revs:
return revs, None
differ = changesetdiffer()
differ._makefilematcher = filematcher
return revs, differ
def _parselinerangeopt(repo, opts):
"""Parse --line-range log option and return a list of tuples (filename,
(fromline, toline)).
"""
linerangebyfname = []
for pat in opts.get(b'line_range', []):
try:
pat, linerange = pat.rsplit(b',', 1)
except ValueError:
raise error.InputError(
_(b'malformatted line-range pattern %s') % pat
)
try:
fromline, toline = map(int, linerange.split(b':'))
except ValueError:
raise error.InputError(_(b"invalid line range for %s") % pat)
msg = _(b"line range pattern '%s' must match exactly one file") % pat
fname = scmutil.parsefollowlinespattern(repo, None, pat, msg)
linerangebyfname.append(
(fname, util.processlinerange(fromline, toline))
)
return linerangebyfname
def getlinerangerevs(repo, userrevs, opts):
"""Return (revs, differ).
"revs" are revisions obtained by processing "line-range" log options and
walking block ancestors of each specified file/line-range.
"differ" is a changesetdiffer with pre-configured file matcher and hunks
filter.
"""
wctx = repo[None]
# Two-levels map of "rev -> file ctx -> [line range]".
linerangesbyrev = {}
for fname, (fromline, toline) in _parselinerangeopt(repo, opts):
if fname not in wctx:
raise error.StateError(
_(b'cannot follow file not in parent revision: "%s"') % fname
)
fctx = wctx.filectx(fname)
for fctx, linerange in dagop.blockancestors(fctx, fromline, toline):
rev = fctx.introrev()
if rev is None:
rev = wdirrev
if rev not in userrevs:
continue
linerangesbyrev.setdefault(rev, {}).setdefault(
fctx.path(), []
).append(linerange)
def nofilterhunksfn(fctx, hunks):
return hunks
def hunksfilter(ctx):
fctxlineranges = linerangesbyrev.get(scmutil.intrev(ctx))
if fctxlineranges is None:
return nofilterhunksfn
def filterfn(fctx, hunks):
lineranges = fctxlineranges.get(fctx.path())
if lineranges is not None:
for hr, lines in hunks:
if hr is None: # binary
yield hr, lines
continue
if any(mdiff.hunkinrange(hr[2:], lr) for lr in lineranges):
yield hr, lines
else:
for hunk in hunks:
yield hunk
return filterfn
def filematcher(ctx):
files = list(linerangesbyrev.get(scmutil.intrev(ctx), []))
return scmutil.matchfiles(repo, files)
revs = sorted(linerangesbyrev, reverse=True)
differ = changesetdiffer()
differ._makefilematcher = filematcher
differ._makehunksfilter = hunksfilter
return smartset.baseset(revs), differ
def _graphnodeformatter(ui, displayer):
spec = ui.config(b'command-templates', b'graphnode')
if not spec:
return templatekw.getgraphnode # fast path for "{graphnode}"
spec = templater.unquotestring(spec)
if isinstance(displayer, changesettemplater):
# reuse cache of slow templates
tres = displayer._tresources
else:
tres = formatter.templateresources(ui)
templ = formatter.maketemplater(
ui, spec, defaults=templatekw.keywords, resources=tres
)
def formatnode(repo, ctx, cache):
props = {b'ctx': ctx, b'repo': repo}
return templ.renderdefault(props)
return formatnode
def displaygraph(ui, repo, dag, displayer, edgefn, getcopies=None, props=None):
props = props or {}
formatnode = _graphnodeformatter(ui, displayer)
state = graphmod.asciistate()
styles = state.styles
# only set graph styling if HGPLAIN is not set.
if ui.plain(b'graph'):
# set all edge styles to |, the default pre-3.8 behaviour
styles.update(dict.fromkeys(styles, b'|'))
else:
edgetypes = {
b'parent': graphmod.PARENT,
b'grandparent': graphmod.GRANDPARENT,
b'missing': graphmod.MISSINGPARENT,
}
for name, key in edgetypes.items():
# experimental config: experimental.graphstyle.*
styles[key] = ui.config(
b'experimental', b'graphstyle.%s' % name, styles[key]
)
if not styles[key]:
styles[key] = None
# experimental config: experimental.graphshorten
state.graphshorten = ui.configbool(b'experimental', b'graphshorten')
formatnode_cache = {}
for rev, type, ctx, parents in dag:
char = formatnode(repo, ctx, formatnode_cache)
copies = getcopies(ctx) if getcopies else None
edges = edgefn(type, char, state, rev, parents)
firstedge = next(edges)
width = firstedge[2]
displayer.show(
ctx, copies=copies, graphwidth=width, **pycompat.strkwargs(props)
)
lines = displayer.hunk.pop(rev).split(b'\n')
if not lines[-1]:
del lines[-1]
displayer.flush(ctx)
for type, char, width, coldata in itertools.chain([firstedge], edges):
graphmod.ascii(ui, state, type, char, lines, coldata)
lines = []
displayer.close()
def displaygraphrevs(ui, repo, revs, displayer, getrenamed):
revdag = graphmod.dagwalker(repo, revs)
displaygraph(ui, repo, revdag, displayer, graphmod.asciiedges, getrenamed)
def displayrevs(ui, repo, revs, displayer, getcopies):
for rev in revs:
ctx = repo[rev]
copies = getcopies(ctx) if getcopies else None
displayer.show(ctx, copies=copies)
displayer.flush(ctx)
displayer.close()
def checkunsupportedgraphflags(pats, opts):
for op in [b"newest_first"]:
if op in opts and opts[op]:
raise error.InputError(
_(b"-G/--graph option is incompatible with --%s")
% op.replace(b"_", b"-")
)
def graphrevs(repo, nodes, opts):
limit = getlimit(opts)
nodes.reverse()
if limit is not None:
nodes = nodes[:limit]
return graphmod.nodes(repo, nodes)