Mercurial > hg
view mercurial/verify.py @ 18792:10669e24eb6c
completion: add a debugpathcomplete command
The bash_completion code uses "hg status" to generate a list of
possible completions for commands that operate on files in the
working directory. In a large working directory, this can result
in a single tab-completion being very slow (several seconds) as a
result of checking the status of every file, even when there is no
need to check status or no possible matches.
The new debugpathcomplete command gains performance in a few simple
ways:
* Allow completion to operate on just a single directory. When used
to complete the right commands, this considerably reduces the
number of completions returned, at no loss in functionality.
* Never check the status of files. For completions that really must
know if a file is modified, it is faster to use status:
hg status -nm 'glob:myprefix**'
Performance:
Here are the commands used by bash_completion to complete, run in
the root of the mozilla-central working dir (~77,000 files) and
another repo (~165,000 files):
All "normal state" files (used by e.g. remove, revert):
mozilla other
status -nmcd 'glob:**' 1.77 4.10 sec
debugpathcomplete -f -n 0.53 1.26
debugpathcomplete -n 0.17 0.41
("-f" means "complete full paths", rather than the current directory)
Tracked files matching "a":
mozilla other
status -nmcd 'glob:a**' 0.26 0.47
debugpathcomplete -f -n a 0.10 0.24
debugpathcomplete -n a 0.10 0.22
We should be able to further improve completion performance once
the critbit work lands. Right now, our performance is limited by
the need to iterate over all keys in the dirstate.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Thu, 21 Mar 2013 16:31:28 -0700 |
parents | e1e181a64de7 |
children | 78f547cdc362 |
line wrap: on
line source
# verify.py - repository integrity checking for Mercurial # # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from node import nullid, short from i18n import _ import os import revlog, util, error def verify(repo): lock = repo.lock() try: return _verify(repo) finally: lock.release() def _normpath(f): # under hg < 2.4, convert didn't sanitize paths properly, so a # converted repo may contain repeated slashes while '//' in f: f = f.replace('//', '/') return f def _verify(repo): repo = repo.unfiltered() mflinkrevs = {} filelinkrevs = {} filenodes = {} revisions = 0 badrevs = set() errors = [0] warnings = [0] ui = repo.ui cl = repo.changelog mf = repo.manifest lrugetctx = util.lrucachefunc(repo.changectx) if not repo.cancopy(): raise util.Abort(_("cannot verify bundle or remote repos")) def err(linkrev, msg, filename=None): if linkrev is not None: badrevs.add(linkrev) else: linkrev = '?' msg = "%s: %s" % (linkrev, msg) if filename: msg = "%s@%s" % (filename, msg) ui.warn(" " + msg + "\n") errors[0] += 1 def exc(linkrev, msg, inst, filename=None): if isinstance(inst, KeyboardInterrupt): ui.warn(_("interrupted")) raise if not str(inst): inst = repr(inst) err(linkrev, "%s: %s" % (msg, inst), filename) def warn(msg): ui.warn(msg + "\n") warnings[0] += 1 def checklog(obj, name, linkrev): if not len(obj) and (havecl or havemf): err(linkrev, _("empty or missing %s") % name) return d = obj.checksize() if d[0]: err(None, _("data length off by %d bytes") % d[0], name) if d[1]: err(None, _("index contains %d extra bytes") % d[1], name) if obj.version != revlog.REVLOGV0: if not revlogv1: warn(_("warning: `%s' uses revlog format 1") % name) elif revlogv1: warn(_("warning: `%s' uses revlog format 0") % name) def checkentry(obj, i, node, seen, linkrevs, f): lr = obj.linkrev(obj.rev(node)) if lr < 0 or (havecl and lr not in linkrevs): if lr < 0 or lr >= len(cl): msg = _("rev %d points to nonexistent changeset %d") else: msg = _("rev %d points to unexpected changeset %d") err(None, msg % (i, lr), f) if linkrevs: if f and len(linkrevs) > 1: try: # attempt to filter down to real linkrevs linkrevs = [l for l in linkrevs if lrugetctx(l)[f].filenode() == node] except Exception: pass warn(_(" (expected %s)") % " ".join(map(str, linkrevs))) lr = None # can't be trusted try: p1, p2 = obj.parents(node) if p1 not in seen and p1 != nullid: err(lr, _("unknown parent 1 %s of %s") % (short(p1), short(node)), f) if p2 not in seen and p2 != nullid: err(lr, _("unknown parent 2 %s of %s") % (short(p2), short(node)), f) except Exception, inst: exc(lr, _("checking parents of %s") % short(node), inst, f) if node in seen: err(lr, _("duplicate revision %d (%d)") % (i, seen[node]), f) seen[node] = i return lr if os.path.exists(repo.sjoin("journal")): ui.warn(_("abandoned transaction found - run hg recover\n")) revlogv1 = cl.version != revlog.REVLOGV0 if ui.verbose or not revlogv1: ui.status(_("repository uses revlog format %d\n") % (revlogv1 and 1 or 0)) havecl = len(cl) > 0 havemf = len(mf) > 0 ui.status(_("checking changesets\n")) refersmf = False seen = {} checklog(cl, "changelog", 0) total = len(repo) for i in repo: ui.progress(_('checking'), i, total=total, unit=_('changesets')) n = cl.node(i) checkentry(cl, i, n, seen, [i], "changelog") try: changes = cl.read(n) if changes[0] != nullid: mflinkrevs.setdefault(changes[0], []).append(i) refersmf = True for f in changes[3]: filelinkrevs.setdefault(_normpath(f), []).append(i) except Exception, inst: refersmf = True exc(i, _("unpacking changeset %s") % short(n), inst) ui.progress(_('checking'), None) ui.status(_("checking manifests\n")) seen = {} if refersmf: # Do not check manifest if there are only changelog entries with # null manifests. checklog(mf, "manifest", 0) total = len(mf) for i in mf: ui.progress(_('checking'), i, total=total, unit=_('manifests')) n = mf.node(i) lr = checkentry(mf, i, n, seen, mflinkrevs.get(n, []), "manifest") if n in mflinkrevs: del mflinkrevs[n] else: err(lr, _("%s not in changesets") % short(n), "manifest") try: for f, fn in mf.readdelta(n).iteritems(): if not f: err(lr, _("file without name in manifest")) elif f != "/dev/null": filenodes.setdefault(_normpath(f), {}).setdefault(fn, lr) except Exception, inst: exc(lr, _("reading manifest delta %s") % short(n), inst) ui.progress(_('checking'), None) ui.status(_("crosschecking files in changesets and manifests\n")) total = len(mflinkrevs) + len(filelinkrevs) + len(filenodes) count = 0 if havemf: for c, m in sorted([(c, m) for m in mflinkrevs for c in mflinkrevs[m]]): count += 1 if m == nullid: continue ui.progress(_('crosschecking'), count, total=total) err(c, _("changeset refers to unknown manifest %s") % short(m)) mflinkrevs = None # del is bad here due to scope issues for f in sorted(filelinkrevs): count += 1 ui.progress(_('crosschecking'), count, total=total) if f not in filenodes: lr = filelinkrevs[f][0] err(lr, _("in changeset but not in manifest"), f) if havecl: for f in sorted(filenodes): count += 1 ui.progress(_('crosschecking'), count, total=total) if f not in filelinkrevs: try: fl = repo.file(f) lr = min([fl.linkrev(fl.rev(n)) for n in filenodes[f]]) except Exception: lr = None err(lr, _("in manifest but not in changeset"), f) ui.progress(_('crosschecking'), None) ui.status(_("checking files\n")) storefiles = set() for f, f2, size in repo.store.datafiles(): if not f: err(None, _("cannot decode filename '%s'") % f2) elif size > 0 or not revlogv1: storefiles.add(_normpath(f)) files = sorted(set(filenodes) | set(filelinkrevs)) total = len(files) for i, f in enumerate(files): ui.progress(_('checking'), i, item=f, total=total) try: linkrevs = filelinkrevs[f] except KeyError: # in manifest but not in changelog linkrevs = [] if linkrevs: lr = linkrevs[0] else: lr = None try: fl = repo.file(f) except error.RevlogError, e: err(lr, _("broken revlog! (%s)") % e, f) continue for ff in fl.files(): try: storefiles.remove(ff) except KeyError: err(lr, _("missing revlog!"), ff) checklog(fl, f, lr) seen = {} rp = None for i in fl: revisions += 1 n = fl.node(i) lr = checkentry(fl, i, n, seen, linkrevs, f) if f in filenodes: if havemf and n not in filenodes[f]: err(lr, _("%s not in manifests") % (short(n)), f) else: del filenodes[f][n] # verify contents try: l = len(fl.read(n)) rp = fl.renamed(n) if l != fl.size(i): if len(fl.revision(n)) != fl.size(i): err(lr, _("unpacked size is %s, %s expected") % (l, fl.size(i)), f) except Exception, inst: exc(lr, _("unpacking %s") % short(n), inst, f) # check renames try: if rp: if lr is not None and ui.verbose: ctx = lrugetctx(lr) found = False for pctx in ctx.parents(): if rp[0] in pctx: found = True break if not found: warn(_("warning: copy source of '%s' not" " in parents of %s") % (f, ctx)) fl2 = repo.file(rp[0]) if not len(fl2): err(lr, _("empty or missing copy source revlog %s:%s") % (rp[0], short(rp[1])), f) elif rp[1] == nullid: ui.note(_("warning: %s@%s: copy source" " revision is nullid %s:%s\n") % (f, lr, rp[0], short(rp[1]))) else: fl2.rev(rp[1]) except Exception, inst: exc(lr, _("checking rename of %s") % short(n), inst, f) # cross-check if f in filenodes: fns = [(lr, n) for n, lr in filenodes[f].iteritems()] for lr, node in sorted(fns): err(lr, _("%s in manifests not found") % short(node), f) ui.progress(_('checking'), None) for f in storefiles: warn(_("warning: orphan revlog '%s'") % f) ui.status(_("%d files, %d changesets, %d total revisions\n") % (len(files), len(cl), revisions)) if warnings[0]: ui.warn(_("%d warnings encountered!\n") % warnings[0]) if errors[0]: ui.warn(_("%d integrity errors encountered!\n") % errors[0]) if badrevs: ui.warn(_("(first damaged changeset appears to be %d)\n") % min(badrevs)) return 1