Mercurial > hg
view mercurial/filemerge.py @ 11791:00cde9bddbe4
repair: do not compress partial bundle if we do not keep it on disk
A partial bundle is created to temporarily save revisions > rev but
not descending from the node to strip, to be able to restore the
changesets after stripping the changelog.
Since this bundle is not kept after the strip operation, and is not
user-visible, it is not necessary and should be faster to avoid
compression.
author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
---|---|
date | Thu, 12 Aug 2010 16:53:23 +0900 |
parents | eb07fbc21e9c |
children | 8380ed691df8 |
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# filemerge.py - file-level merge handling for Mercurial # # Copyright 2006, 2007, 2008 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 short from i18n import _ import util, simplemerge, match, error import os, tempfile, re, filecmp def _toolstr(ui, tool, part, default=""): return ui.config("merge-tools", tool + "." + part, default) def _toolbool(ui, tool, part, default=False): return ui.configbool("merge-tools", tool + "." + part, default) def _toollist(ui, tool, part, default=[]): return ui.configlist("merge-tools", tool + "." + part, default) _internal = ['internal:' + s for s in 'fail local other merge prompt dump'.split()] def _findtool(ui, tool): if tool in _internal: return tool k = _toolstr(ui, tool, "regkey") if k: p = util.lookup_reg(k, _toolstr(ui, tool, "regname")) if p: p = util.find_exe(p + _toolstr(ui, tool, "regappend")) if p: return p return util.find_exe(_toolstr(ui, tool, "executable", tool)) def _picktool(repo, ui, path, binary, symlink): def check(tool, pat, symlink, binary): tmsg = tool if pat: tmsg += " specified for " + pat if not _findtool(ui, tool): if pat: # explicitly requested tool deserves a warning ui.warn(_("couldn't find merge tool %s\n") % tmsg) else: # configured but non-existing tools are more silent ui.note(_("couldn't find merge tool %s\n") % tmsg) elif symlink and not _toolbool(ui, tool, "symlink"): ui.warn(_("tool %s can't handle symlinks\n") % tmsg) elif binary and not _toolbool(ui, tool, "binary"): ui.warn(_("tool %s can't handle binary\n") % tmsg) elif not util.gui() and _toolbool(ui, tool, "gui"): ui.warn(_("tool %s requires a GUI\n") % tmsg) else: return True return False # HGMERGE takes precedence hgmerge = os.environ.get("HGMERGE") if hgmerge: return (hgmerge, hgmerge) # then patterns for pat, tool in ui.configitems("merge-patterns"): mf = match.match(repo.root, '', [pat]) if mf(path) and check(tool, pat, symlink, False): toolpath = _findtool(ui, tool) return (tool, '"' + toolpath + '"') # then merge tools tools = {} for k, v in ui.configitems("merge-tools"): t = k.split('.')[0] if t not in tools: tools[t] = int(_toolstr(ui, t, "priority", "0")) names = tools.keys() tools = sorted([(-p, t) for t, p in tools.items()]) uimerge = ui.config("ui", "merge") if uimerge: if uimerge not in names: return (uimerge, uimerge) tools.insert(0, (None, uimerge)) # highest priority tools.append((None, "hgmerge")) # the old default, if found for p, t in tools: if check(t, None, symlink, binary): toolpath = _findtool(ui, t) return (t, '"' + toolpath + '"') # internal merge as last resort return (not (symlink or binary) and "internal:merge" or None, None) def _eoltype(data): "Guess the EOL type of a file" if '\0' in data: # binary return None if '\r\n' in data: # Windows return '\r\n' if '\r' in data: # Old Mac return '\r' if '\n' in data: # UNIX return '\n' return None # unknown def _matcheol(file, origfile): "Convert EOL markers in a file to match origfile" tostyle = _eoltype(open(origfile, "rb").read()) if tostyle: data = open(file, "rb").read() style = _eoltype(data) if style: newdata = data.replace(style, tostyle) if newdata != data: open(file, "wb").write(newdata) def filemerge(repo, mynode, orig, fcd, fco, fca): """perform a 3-way merge in the working directory mynode = parent node before merge orig = original local filename before merge fco = other file context fca = ancestor file context fcd = local file context for current/destination file """ def temp(prefix, ctx): pre = "%s~%s." % (os.path.basename(ctx.path()), prefix) (fd, name) = tempfile.mkstemp(prefix=pre) data = repo.wwritedata(ctx.path(), ctx.data()) f = os.fdopen(fd, "wb") f.write(data) f.close() return name def isbin(ctx): try: return util.binary(ctx.data()) except IOError: return False if not fco.cmp(fcd): # files identical? return None if fca == fco: # backwards, use working dir parent as ancestor fca = fcd.parents()[0] ui = repo.ui fd = fcd.path() binary = isbin(fcd) or isbin(fco) or isbin(fca) symlink = 'l' in fcd.flags() + fco.flags() tool, toolpath = _picktool(repo, ui, fd, binary, symlink) ui.debug("picked tool '%s' for %s (binary %s symlink %s)\n" % (tool, fd, binary, symlink)) if not tool or tool == 'internal:prompt': tool = "internal:local" if ui.promptchoice(_(" no tool found to merge %s\n" "keep (l)ocal or take (o)ther?") % fd, (_("&Local"), _("&Other")), 0): tool = "internal:other" if tool == "internal:local": return 0 if tool == "internal:other": repo.wwrite(fd, fco.data(), fco.flags()) return 0 if tool == "internal:fail": return 1 # do the actual merge a = repo.wjoin(fd) b = temp("base", fca) c = temp("other", fco) out = "" back = a + ".orig" util.copyfile(a, back) if orig != fco.path(): ui.status(_("merging %s and %s to %s\n") % (orig, fco.path(), fd)) else: ui.status(_("merging %s\n") % fd) ui.debug("my %s other %s ancestor %s\n" % (fcd, fco, fca)) # do we attempt to simplemerge first? try: premerge = _toolbool(ui, tool, "premerge", not (binary or symlink)) except error.ConfigError: premerge = _toolstr(ui, tool, "premerge").lower() valid = 'keep'.split() if premerge not in valid: _valid = ', '.join(["'" + v + "'" for v in valid]) raise error.ConfigError(_("%s.premerge not valid " "('%s' is neither boolean nor %s)") % (tool, premerge, _valid)) if premerge: r = simplemerge.simplemerge(ui, a, b, c, quiet=True) if not r: ui.debug(" premerge successful\n") os.unlink(back) os.unlink(b) os.unlink(c) return 0 if premerge != 'keep': util.copyfile(back, a) # restore from backup and try again env = dict(HG_FILE=fd, HG_MY_NODE=short(mynode), HG_OTHER_NODE=str(fco.changectx()), HG_BASE_NODE=str(fca.changectx()), HG_MY_ISLINK='l' in fcd.flags(), HG_OTHER_ISLINK='l' in fco.flags(), HG_BASE_ISLINK='l' in fca.flags()) if tool == "internal:merge": r = simplemerge.simplemerge(ui, a, b, c, label=['local', 'other']) elif tool == 'internal:dump': a = repo.wjoin(fd) util.copyfile(a, a + ".local") repo.wwrite(fd + ".other", fco.data(), fco.flags()) repo.wwrite(fd + ".base", fca.data(), fca.flags()) return 1 # unresolved else: args = _toolstr(ui, tool, "args", '$local $base $other') if "$output" in args: out, a = a, back # read input from backup, write to original replace = dict(local=a, base=b, other=c, output=out) args = re.sub("\$(local|base|other|output)", lambda x: '"%s"' % util.localpath(replace[x.group()[1:]]), args) r = util.system(toolpath + ' ' + args, cwd=repo.root, environ=env) if not r and (_toolbool(ui, tool, "checkconflicts") or 'conflicts' in _toollist(ui, tool, "check")): if re.match("^(<<<<<<< .*|=======|>>>>>>> .*)$", fcd.data()): r = 1 checked = False if 'prompt' in _toollist(ui, tool, "check"): checked = True if ui.promptchoice(_("was merge of '%s' successful (yn)?") % fd, (_("&Yes"), _("&No")), 1): r = 1 if not r and not checked and (_toolbool(ui, tool, "checkchanged") or 'changed' in _toollist(ui, tool, "check")): if filecmp.cmp(repo.wjoin(fd), back): if ui.promptchoice(_(" output file %s appears unchanged\n" "was merge successful (yn)?") % fd, (_("&Yes"), _("&No")), 1): r = 1 if _toolbool(ui, tool, "fixeol"): _matcheol(repo.wjoin(fd), back) if r: ui.warn(_("merging %s failed!\n") % fd) else: os.unlink(back) os.unlink(b) os.unlink(c) return r