Mercurial > hg
view hgext/convert/monotone.py @ 30949:e7d7335819f4
debugcommands: move 'debugrebuildfncache' in the new module
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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date | Thu, 02 Feb 2017 10:01:00 +0100 |
parents | a0939666b836 |
children | 671aba341d90 |
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# monotone.py - monotone support for the convert extension # # Copyright 2008, 2009 Mikkel Fahnoe Jorgensen <mikkel@dvide.com> and # others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import os import re from mercurial.i18n import _ from mercurial import ( error, util, ) from . import common class monotone_source(common.converter_source, common.commandline): def __init__(self, ui, path=None, revs=None): common.converter_source.__init__(self, ui, path, revs) if revs and len(revs) > 1: raise error.Abort(_('monotone source does not support specifying ' 'multiple revs')) common.commandline.__init__(self, ui, 'mtn') self.ui = ui self.path = path self.automatestdio = False self.revs = revs norepo = common.NoRepo(_("%s does not look like a monotone repository") % path) if not os.path.exists(os.path.join(path, '_MTN')): # Could be a monotone repository (SQLite db file) try: f = file(path, 'rb') header = f.read(16) f.close() except IOError: header = '' if header != 'SQLite format 3\x00': raise norepo # regular expressions for parsing monotone output space = r'\s*' name = r'\s+"((?:\\"|[^"])*)"\s*' value = name revision = r'\s+\[(\w+)\]\s*' lines = r'(?:.|\n)+' self.dir_re = re.compile(space + "dir" + name) self.file_re = re.compile(space + "file" + name + "content" + revision) self.add_file_re = re.compile(space + "add_file" + name + "content" + revision) self.patch_re = re.compile(space + "patch" + name + "from" + revision + "to" + revision) self.rename_re = re.compile(space + "rename" + name + "to" + name) self.delete_re = re.compile(space + "delete" + name) self.tag_re = re.compile(space + "tag" + name + "revision" + revision) self.cert_re = re.compile(lines + space + "name" + name + "value" + value) attr = space + "file" + lines + space + "attr" + space self.attr_execute_re = re.compile(attr + '"mtn:execute"' + space + '"true"') # cached data self.manifest_rev = None self.manifest = None self.files = None self.dirs = None common.checktool('mtn', abort=False) def mtnrun(self, *args, **kwargs): if self.automatestdio: return self.mtnrunstdio(*args, **kwargs) else: return self.mtnrunsingle(*args, **kwargs) def mtnrunsingle(self, *args, **kwargs): kwargs['d'] = self.path return self.run0('automate', *args, **kwargs) def mtnrunstdio(self, *args, **kwargs): # Prepare the command in automate stdio format command = [] for k, v in kwargs.iteritems(): command.append("%s:%s" % (len(k), k)) if v: command.append("%s:%s" % (len(v), v)) if command: command.insert(0, 'o') command.append('e') command.append('l') for arg in args: command += "%s:%s" % (len(arg), arg) command.append('e') command = ''.join(command) self.ui.debug("mtn: sending '%s'\n" % command) self.mtnwritefp.write(command) self.mtnwritefp.flush() return self.mtnstdioreadcommandoutput(command) def mtnstdioreadpacket(self): read = None commandnbr = '' while read != ':': read = self.mtnreadfp.read(1) if not read: raise error.Abort(_('bad mtn packet - no end of commandnbr')) commandnbr += read commandnbr = commandnbr[:-1] stream = self.mtnreadfp.read(1) if stream not in 'mewptl': raise error.Abort(_('bad mtn packet - bad stream type %s') % stream) read = self.mtnreadfp.read(1) if read != ':': raise error.Abort(_('bad mtn packet - no divider before size')) read = None lengthstr = '' while read != ':': read = self.mtnreadfp.read(1) if not read: raise error.Abort(_('bad mtn packet - no end of packet size')) lengthstr += read try: length = long(lengthstr[:-1]) except TypeError: raise error.Abort(_('bad mtn packet - bad packet size %s') % lengthstr) read = self.mtnreadfp.read(length) if len(read) != length: raise error.Abort(_("bad mtn packet - unable to read full packet " "read %s of %s") % (len(read), length)) return (commandnbr, stream, length, read) def mtnstdioreadcommandoutput(self, command): retval = [] while True: commandnbr, stream, length, output = self.mtnstdioreadpacket() self.ui.debug('mtn: read packet %s:%s:%s\n' % (commandnbr, stream, length)) if stream == 'l': # End of command if output != '0': raise error.Abort(_("mtn command '%s' returned %s") % (command, output)) break elif stream in 'ew': # Error, warning output self.ui.warn(_('%s error:\n') % self.command) self.ui.warn(output) elif stream == 'p': # Progress messages self.ui.debug('mtn: ' + output) elif stream == 'm': # Main stream - command output retval.append(output) return ''.join(retval) def mtnloadmanifest(self, rev): if self.manifest_rev == rev: return self.manifest = self.mtnrun("get_manifest_of", rev).split("\n\n") self.manifest_rev = rev self.files = {} self.dirs = {} for e in self.manifest: m = self.file_re.match(e) if m: attr = "" name = m.group(1) node = m.group(2) if self.attr_execute_re.match(e): attr += "x" self.files[name] = (node, attr) m = self.dir_re.match(e) if m: self.dirs[m.group(1)] = True def mtnisfile(self, name, rev): # a non-file could be a directory or a deleted or renamed file self.mtnloadmanifest(rev) return name in self.files def mtnisdir(self, name, rev): self.mtnloadmanifest(rev) return name in self.dirs def mtngetcerts(self, rev): certs = {"author":"<missing>", "date":"<missing>", "changelog":"<missing>", "branch":"<missing>"} certlist = self.mtnrun("certs", rev) # mtn < 0.45: # key "test@selenic.com" # mtn >= 0.45: # key [ff58a7ffb771907c4ff68995eada1c4da068d328] certlist = re.split('\n\n key ["\[]', certlist) for e in certlist: m = self.cert_re.match(e) if m: name, value = m.groups() value = value.replace(r'\"', '"') value = value.replace(r'\\', '\\') certs[name] = value # Monotone may have subsecond dates: 2005-02-05T09:39:12.364306 # and all times are stored in UTC certs["date"] = certs["date"].split('.')[0] + " UTC" return certs # implement the converter_source interface: def getheads(self): if not self.revs: return self.mtnrun("leaves").splitlines() else: return self.revs def getchanges(self, rev, full): if full: raise error.Abort(_("convert from monotone does not support " "--full")) revision = self.mtnrun("get_revision", rev).split("\n\n") files = {} ignoremove = {} renameddirs = [] copies = {} for e in revision: m = self.add_file_re.match(e) if m: files[m.group(1)] = rev ignoremove[m.group(1)] = rev m = self.patch_re.match(e) if m: files[m.group(1)] = rev # Delete/rename is handled later when the convert engine # discovers an IOError exception from getfile, # but only if we add the "from" file to the list of changes. m = self.delete_re.match(e) if m: files[m.group(1)] = rev m = self.rename_re.match(e) if m: toname = m.group(2) fromname = m.group(1) if self.mtnisfile(toname, rev): ignoremove[toname] = 1 copies[toname] = fromname files[toname] = rev files[fromname] = rev elif self.mtnisdir(toname, rev): renameddirs.append((fromname, toname)) # Directory renames can be handled only once we have recorded # all new files for fromdir, todir in renameddirs: renamed = {} for tofile in self.files: if tofile in ignoremove: continue if tofile.startswith(todir + '/'): renamed[tofile] = fromdir + tofile[len(todir):] # Avoid chained moves like: # d1(/a) => d3/d1(/a) # d2 => d3 ignoremove[tofile] = 1 for tofile, fromfile in renamed.items(): self.ui.debug (_("copying file in renamed directory " "from '%s' to '%s'") % (fromfile, tofile), '\n') files[tofile] = rev copies[tofile] = fromfile for fromfile in renamed.values(): files[fromfile] = rev return (files.items(), copies, set()) def getfile(self, name, rev): if not self.mtnisfile(name, rev): return None, None try: data = self.mtnrun("get_file_of", name, r=rev) except Exception: return None, None self.mtnloadmanifest(rev) node, attr = self.files.get(name, (None, "")) return data, attr def getcommit(self, rev): extra = {} certs = self.mtngetcerts(rev) if certs.get('suspend') == certs["branch"]: extra['close'] = 1 return common.commit( author=certs["author"], date=util.datestr(util.strdate(certs["date"], "%Y-%m-%dT%H:%M:%S")), desc=certs["changelog"], rev=rev, parents=self.mtnrun("parents", rev).splitlines(), branch=certs["branch"], extra=extra) def gettags(self): tags = {} for e in self.mtnrun("tags").split("\n\n"): m = self.tag_re.match(e) if m: tags[m.group(1)] = m.group(2) return tags def getchangedfiles(self, rev, i): # This function is only needed to support --filemap # ... and we don't support that raise NotImplementedError def before(self): # Check if we have a new enough version to use automate stdio version = 0.0 try: versionstr = self.mtnrunsingle("interface_version") version = float(versionstr) except Exception: raise error.Abort(_("unable to determine mtn automate interface " "version")) if version >= 12.0: self.automatestdio = True self.ui.debug("mtn automate version %s - using automate stdio\n" % version) # launch the long-running automate stdio process self.mtnwritefp, self.mtnreadfp = self._run2('automate', 'stdio', '-d', self.path) # read the headers read = self.mtnreadfp.readline() if read != 'format-version: 2\n': raise error.Abort(_('mtn automate stdio header unexpected: %s') % read) while read != '\n': read = self.mtnreadfp.readline() if not read: raise error.Abort(_("failed to reach end of mtn automate " "stdio headers")) else: self.ui.debug("mtn automate version %s - not using automate stdio " "(automate >= 12.0 - mtn >= 0.46 is needed)\n" % version) def after(self): if self.automatestdio: self.mtnwritefp.close() self.mtnwritefp = None self.mtnreadfp.close() self.mtnreadfp = None