Mercurial > hg
view hgext/convert/p4.py @ 51630:513597087b89
branching: merge stable into default
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 10 Jun 2024 12:12:56 +0200 |
parents | 6000f5b25c9b |
children |
line wrap: on
line source
# Perforce source for convert extension. # # Copyright 2009, Frank Kingswood <frank@kingswood-consulting.co.uk> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import marshal import re from mercurial.i18n import _ from mercurial import ( error, util, ) from mercurial.utils import ( dateutil, procutil, stringutil, ) from . import common def loaditer(f): """Yield the dictionary objects generated by p4""" try: while True: d = marshal.load(f) if not d: break yield d except EOFError: pass def decodefilename(filename): """Perforce escapes special characters @, #, *, or % with %40, %23, %2A, or %25 respectively >>> decodefilename(b'portable-net45%252Bnetcore45%252Bwp8%252BMonoAndroid') 'portable-net45%2Bnetcore45%2Bwp8%2BMonoAndroid' >>> decodefilename(b'//Depot/Directory/%2525/%2523/%23%40.%2A') '//Depot/Directory/%25/%23/#@.*' """ replacements = [ (b'%2A', b'*'), (b'%23', b'#'), (b'%40', b'@'), (b'%25', b'%'), ] for k, v in replacements: filename = filename.replace(k, v) return filename class p4_source(common.converter_source): def __init__(self, ui, repotype, path, revs=None): # avoid import cycle from . import convcmd super(p4_source, self).__init__(ui, repotype, path, revs=revs) if b"/" in path and not path.startswith(b'//'): raise common.NoRepo( _(b'%s does not look like a P4 repository') % path ) common.checktool(b'p4', abort=False) self.revmap = {} self.encoding = self.ui.config( b'convert', b'p4.encoding', convcmd.orig_encoding ) self.re_type = re.compile( br"([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)" br"(\+\w+)?$" ) self.re_keywords = re.compile( br"\$(Id|Header|Date|DateTime|Change|File|Revision|Author)" br":[^$\n]*\$" ) self.re_keywords_old = re.compile(br"\$(Id|Header):[^$\n]*\$") if revs and len(revs) > 1: raise error.Abort( _( b"p4 source does not support specifying " b"multiple revisions" ) ) def setrevmap(self, revmap): """Sets the parsed revmap dictionary. Revmap stores mappings from a source revision to a target revision. It is set in convertcmd.convert and provided by the user as a file on the commandline. Revisions in the map are considered beeing present in the repository and ignored during _parse(). This allows for incremental imports if a revmap is provided. """ self.revmap = revmap def _parse_view(self, path): """Read changes affecting the path""" cmd = b'p4 -G changes -s submitted %s' % procutil.shellquote(path) stdout = procutil.popen(cmd, mode=b'rb') p4changes = {} for d in loaditer(stdout): c = d.get(b"change", None) if c: p4changes[c] = True return p4changes def _parse(self, ui, path): """Prepare list of P4 filenames and revisions to import""" p4changes = {} changeset = {} files_map = {} copies_map = {} localname = {} depotname = {} heads = [] ui.status(_(b'reading p4 views\n')) # read client spec or view if b"/" in path: p4changes.update(self._parse_view(path)) if path.startswith(b"//") and path.endswith(b"/..."): views = {path[:-3]: b""} else: views = {b"//": b""} else: cmd = b'p4 -G client -o %s' % procutil.shellquote(path) clientspec = marshal.load(procutil.popen(cmd, mode=b'rb')) views = {} for client in clientspec: if client.startswith(b"View"): sview, cview = clientspec[client].split() p4changes.update(self._parse_view(sview)) if sview.endswith(b"...") and cview.endswith(b"..."): sview = sview[:-3] cview = cview[:-3] cview = cview[2:] cview = cview[cview.find(b"/") + 1 :] views[sview] = cview # list of changes that affect our source files p4changes = sorted(p4changes.keys(), key=int) # list with depot pathnames, longest first vieworder = sorted(views.keys(), key=len, reverse=True) # handle revision limiting startrev = self.ui.config(b'convert', b'p4.startrev') # now read the full changelists to get the list of file revisions ui.status(_(b'collecting p4 changelists\n')) lastid = None for change in p4changes: if startrev and int(change) < int(startrev): continue if self.revs and int(change) > int(self.revs[0]): continue if change in self.revmap: # Ignore already present revisions, but set the parent pointer. lastid = change continue if lastid: parents = [lastid] else: parents = [] d = self._fetch_revision(change) c = self._construct_commit(d, parents) descarr = c.desc.splitlines(True) if len(descarr) > 0: shortdesc = descarr[0].rstrip(b'\r\n') else: shortdesc = b'**empty changelist description**' t = b'%s %s' % (c.rev, shortdesc) ui.status(stringutil.ellipsis(t, 80) + b'\n') files = [] copies = {} copiedfiles = [] i = 0 while (b"depotFile%d" % i) in d and (b"rev%d" % i) in d: oldname = d[b"depotFile%d" % i] filename = None for v in vieworder: if oldname.lower().startswith(v.lower()): filename = decodefilename(views[v] + oldname[len(v) :]) break if filename: files.append((filename, d[b"rev%d" % i])) depotname[filename] = oldname if d.get(b"action%d" % i) == b"move/add": copiedfiles.append(filename) localname[oldname] = filename i += 1 # Collect information about copied files for filename in copiedfiles: oldname = depotname[filename] flcmd = b'p4 -G filelog %s' % procutil.shellquote(oldname) flstdout = procutil.popen(flcmd, mode=b'rb') copiedfilename = None for d in loaditer(flstdout): copiedoldname = None i = 0 while (b"change%d" % i) in d: if ( d[b"change%d" % i] == change and d[b"action%d" % i] == b"move/add" ): j = 0 while (b"file%d,%d" % (i, j)) in d: if d[b"how%d,%d" % (i, j)] == b"moved from": copiedoldname = d[b"file%d,%d" % (i, j)] break j += 1 i += 1 if copiedoldname and copiedoldname in localname: copiedfilename = localname[copiedoldname] break if copiedfilename: copies[filename] = copiedfilename else: ui.warn( _(b"cannot find source for copied file: %s@%s\n") % (filename, change) ) changeset[change] = c files_map[change] = files copies_map[change] = copies lastid = change if lastid and len(changeset) > 0: heads = [lastid] return { b'changeset': changeset, b'files': files_map, b'copies': copies_map, b'heads': heads, b'depotname': depotname, } @util.propertycache def _parse_once(self): return self._parse(self.ui, self.path) @util.propertycache def copies(self): return self._parse_once[b'copies'] @util.propertycache def files(self): return self._parse_once[b'files'] @util.propertycache def changeset(self): return self._parse_once[b'changeset'] @util.propertycache def heads(self): return self._parse_once[b'heads'] @util.propertycache def depotname(self): return self._parse_once[b'depotname'] def getheads(self): return self.heads def getfile(self, name, rev): cmd = b'p4 -G print %s' % procutil.shellquote( b"%s#%s" % (self.depotname[name], rev) ) lasterror = None while True: stdout = procutil.popen(cmd, mode=b'rb') mode = None contents = [] keywords = None for d in loaditer(stdout): code = d[b"code"] data = d.get(b"data") if code == b"error": # if this is the first time error happened # re-attempt getting the file if not lasterror: lasterror = IOError(d[b"generic"], data) # this will exit inner-most for-loop break else: raise lasterror elif code == b"stat": action = d.get(b"action") if action in [b"purge", b"delete", b"move/delete"]: return None, None p4type = self.re_type.match(d[b"type"]) if p4type: mode = b"" flags = (p4type.group(1) or b"") + ( p4type.group(3) or b"" ) if b"x" in flags: mode = b"x" if p4type.group(2) == b"symlink": mode = b"l" if b"ko" in flags: keywords = self.re_keywords_old elif b"k" in flags: keywords = self.re_keywords elif code == b"text" or code == b"binary": contents.append(data) lasterror = None if not lasterror: break if mode is None: return None, None contents = b''.join(contents) if keywords: contents = keywords.sub(b"$\\1$", contents) if mode == b"l" and contents.endswith(b"\n"): contents = contents[:-1] return contents, mode def getchanges(self, rev, full): if full: raise error.Abort(_(b"convert from p4 does not support --full")) return self.files[rev], self.copies[rev], set() def _construct_commit(self, obj, parents=None): """ Constructs a common.commit object from an unmarshalled `p4 describe` output """ desc = self.recode(obj.get(b"desc", b"")) date = (int(obj[b"time"]), 0) # timezone not set if parents is None: parents = [] return common.commit( author=self.recode(obj[b"user"]), date=dateutil.datestr(date, b'%Y-%m-%d %H:%M:%S %1%2'), parents=parents, desc=desc, branch=None, rev=obj[b'change'], extra={b"p4": obj[b'change'], b"convert_revision": obj[b'change']}, ) def _fetch_revision(self, rev): """Return an output of `p4 describe` including author, commit date as a dictionary.""" cmd = b"p4 -G describe -s %s" % rev stdout = procutil.popen(cmd, mode=b'rb') return marshal.load(stdout) def getcommit(self, rev): if rev in self.changeset: return self.changeset[rev] elif rev in self.revmap: d = self._fetch_revision(rev) return self._construct_commit(d, parents=None) raise error.Abort( _(b"cannot find %s in the revmap or parsed changesets") % rev ) def gettags(self): return {} def getchangedfiles(self, rev, i): return sorted([x[0] for x in self.files[rev]])