Mercurial > hg
view hgext/convert/subversion.py @ 8250:1b60efdb8bc5
convert: add copyright and license headers to back-ends
| author | Martin Geisler <mg@lazybytes.net> |
|---|---|
| date | Sun, 26 Apr 2009 01:47:44 +0200 |
| parents | d093e57671ea |
| children | f55869abb5c3 |
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# Subversion 1.4/1.5 Python API backend # # Copyright(C) 2007 Daniel Holth et al # # Configuration options: # # convert.svn.trunk # Relative path to the trunk (default: "trunk") # convert.svn.branches # Relative path to tree of branches (default: "branches") # convert.svn.tags # Relative path to tree of tags (default: "tags") # # Set these in a hgrc, or on the command line as follows: # # hg convert --config convert.svn.trunk=wackoname [...] import locale import os import re import sys import cPickle as pickle import tempfile import urllib from mercurial import strutil, util from mercurial.i18n import _ # Subversion stuff. Works best with very recent Python SVN bindings # e.g. SVN 1.5 or backports. Thanks to the bzr folks for enhancing # these bindings. from cStringIO import StringIO from common import NoRepo, MissingTool, commit, encodeargs, decodeargs from common import commandline, converter_source, converter_sink, mapfile try: from svn.core import SubversionException, Pool import svn import svn.client import svn.core import svn.ra import svn.delta import transport import warnings warnings.filterwarnings('ignore', module='svn.core', category=DeprecationWarning) except ImportError: pass class SvnPathNotFound(Exception): pass def geturl(path): try: return svn.client.url_from_path(svn.core.svn_path_canonicalize(path)) except SubversionException: pass if os.path.isdir(path): path = os.path.normpath(os.path.abspath(path)) if os.name == 'nt': path = '/' + util.normpath(path) return 'file://%s' % urllib.quote(path) return path def optrev(number): optrev = svn.core.svn_opt_revision_t() optrev.kind = svn.core.svn_opt_revision_number optrev.value.number = number return optrev class changedpath(object): def __init__(self, p): self.copyfrom_path = p.copyfrom_path self.copyfrom_rev = p.copyfrom_rev self.action = p.action def get_log_child(fp, url, paths, start, end, limit=0, discover_changed_paths=True, strict_node_history=False): protocol = -1 def receiver(orig_paths, revnum, author, date, message, pool): if orig_paths is not None: for k, v in orig_paths.iteritems(): orig_paths[k] = changedpath(v) pickle.dump((orig_paths, revnum, author, date, message), fp, protocol) try: # Use an ra of our own so that our parent can consume # our results without confusing the server. t = transport.SvnRaTransport(url=url) svn.ra.get_log(t.ra, paths, start, end, limit, discover_changed_paths, strict_node_history, receiver) except SubversionException, (inst, num): pickle.dump(num, fp, protocol) except IOError: # Caller may interrupt the iteration pickle.dump(None, fp, protocol) else: pickle.dump(None, fp, protocol) fp.close() # With large history, cleanup process goes crazy and suddenly # consumes *huge* amount of memory. The output file being closed, # there is no need for clean termination. os._exit(0) def debugsvnlog(ui, **opts): """Fetch SVN log in a subprocess and channel them back to parent to avoid memory collection issues. """ util.set_binary(sys.stdin) util.set_binary(sys.stdout) args = decodeargs(sys.stdin.read()) get_log_child(sys.stdout, *args) class logstream: """Interruptible revision log iterator.""" def __init__(self, stdout): self._stdout = stdout def __iter__(self): while True: entry = pickle.load(self._stdout) try: orig_paths, revnum, author, date, message = entry except: if entry is None: break raise SubversionException("child raised exception", entry) yield entry def close(self): if self._stdout: self._stdout.close() self._stdout = None # Check to see if the given path is a local Subversion repo. Verify this by # looking for several svn-specific files and directories in the given # directory. def filecheck(path, proto): for x in ('locks', 'hooks', 'format', 'db', ): if not os.path.exists(os.path.join(path, x)): return False return True # Check to see if a given path is the root of an svn repo over http. We verify # this by requesting a version-controlled URL we know can't exist and looking # for the svn-specific "not found" XML. def httpcheck(path, proto): return ('<m:human-readable errcode="160013">' in urllib.urlopen('%s://%s/!svn/ver/0/.svn' % (proto, path)).read()) protomap = {'http': httpcheck, 'https': httpcheck, 'file': filecheck, } def issvnurl(url): if not '://' in url: return False proto, path = url.split('://', 1) path = urllib.url2pathname(path).replace(os.sep, '/') check = protomap.get(proto, lambda p, p2: False) while '/' in path: if check(path, proto): return True path = path.rsplit('/', 1)[0] return False # SVN conversion code stolen from bzr-svn and tailor # # Subversion looks like a versioned filesystem, branches structures # are defined by conventions and not enforced by the tool. First, # we define the potential branches (modules) as "trunk" and "branches" # children directories. Revisions are then identified by their # module and revision number (and a repository identifier). # # The revision graph is really a tree (or a forest). By default, a # revision parent is the previous revision in the same module. If the # module directory is copied/moved from another module then the # revision is the module root and its parent the source revision in # the parent module. A revision has at most one parent. # class svn_source(converter_source): def __init__(self, ui, url, rev=None): super(svn_source, self).__init__(ui, url, rev=rev) if not (url.startswith('svn://') or url.startswith('svn+ssh://') or (os.path.exists(url) and os.path.exists(os.path.join(url, '.svn'))) or issvnurl(url)): raise NoRepo("%s does not look like a Subversion repo" % url) try: SubversionException except NameError: raise MissingTool(_('Subversion python bindings could not be loaded')) try: version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR if version < (1, 4): raise MissingTool(_('Subversion python bindings %d.%d found, ' '1.4 or later required') % version) except AttributeError: raise MissingTool(_('Subversion python bindings are too old, 1.4 ' 'or later required')) self.encoding = locale.getpreferredencoding() self.lastrevs = {} latest = None try: # Support file://path@rev syntax. Useful e.g. to convert # deleted branches. at = url.rfind('@') if at >= 0: latest = int(url[at+1:]) url = url[:at] except ValueError: pass self.url = geturl(url) self.encoding = 'UTF-8' # Subversion is always nominal UTF-8 try: self.transport = transport.SvnRaTransport(url=self.url) self.ra = self.transport.ra self.ctx = self.transport.client self.baseurl = svn.ra.get_repos_root(self.ra) # Module is either empty or a repository path starting with # a slash and not ending with a slash. self.module = urllib.unquote(self.url[len(self.baseurl):]) self.prevmodule = None self.rootmodule = self.module self.commits = {} self.paths = {} self.uuid = svn.ra.get_uuid(self.ra).decode(self.encoding) except SubversionException: ui.traceback() raise NoRepo("%s does not look like a Subversion repo" % self.url) if rev: try: latest = int(rev) except ValueError: raise util.Abort(_('svn: revision %s is not an integer') % rev) self.startrev = self.ui.config('convert', 'svn.startrev', default=0) try: self.startrev = int(self.startrev) if self.startrev < 0: self.startrev = 0 except ValueError: raise util.Abort(_('svn: start revision %s is not an integer') % self.startrev) try: self.get_blacklist() except IOError: pass self.head = self.latest(self.module, latest) if not self.head: raise util.Abort(_('no revision found in module %s') % self.module.encode(self.encoding)) self.last_changed = self.revnum(self.head) self._changescache = None if os.path.exists(os.path.join(url, '.svn/entries')): self.wc = url else: self.wc = None self.convertfp = None def setrevmap(self, revmap): lastrevs = {} for revid in revmap.iterkeys(): uuid, module, revnum = self.revsplit(revid) lastrevnum = lastrevs.setdefault(module, revnum) if revnum > lastrevnum: lastrevs[module] = revnum self.lastrevs = lastrevs def exists(self, path, optrev): try: svn.client.ls(self.url.rstrip('/') + '/' + urllib.quote(path), optrev, False, self.ctx) return True except SubversionException: return False def getheads(self): def isdir(path, revnum): kind = self._checkpath(path, revnum) return kind == svn.core.svn_node_dir def getcfgpath(name, rev): cfgpath = self.ui.config('convert', 'svn.' + name) if cfgpath is not None and cfgpath.strip() == '': return None path = (cfgpath or name).strip('/') if not self.exists(path, rev): if cfgpath: raise util.Abort(_('expected %s to be at %r, but not found') % (name, path)) return None self.ui.note(_('found %s at %r\n') % (name, path)) return path rev = optrev(self.last_changed) oldmodule = '' trunk = getcfgpath('trunk', rev) self.tags = getcfgpath('tags', rev) branches = getcfgpath('branches', rev) # If the project has a trunk or branches, we will extract heads # from them. We keep the project root otherwise. if trunk: oldmodule = self.module or '' self.module += '/' + trunk self.head = self.latest(self.module, self.last_changed) if not self.head: raise util.Abort(_('no revision found in module %s') % self.module.encode(self.encoding)) # First head in the list is the module's head self.heads = [self.head] if self.tags is not None: self.tags = '%s/%s' % (oldmodule , (self.tags or 'tags')) # Check if branches bring a few more heads to the list if branches: rpath = self.url.strip('/') branchnames = svn.client.ls(rpath + '/' + urllib.quote(branches), rev, False, self.ctx) for branch in branchnames.keys(): module = '%s/%s/%s' % (oldmodule, branches, branch) if not isdir(module, self.last_changed): continue brevid = self.latest(module, self.last_changed) if not brevid: self.ui.note(_('ignoring empty branch %s\n') % branch.encode(self.encoding)) continue self.ui.note(_('found branch %s at %d\n') % (branch, self.revnum(brevid))) self.heads.append(brevid) if self.startrev and self.heads: if len(self.heads) > 1: raise util.Abort(_('svn: start revision is not supported ' 'with more than one branch')) revnum = self.revnum(self.heads[0]) if revnum < self.startrev: raise util.Abort(_('svn: no revision found after start revision %d') % self.startrev) return self.heads def getfile(self, file, rev): data, mode = self._getfile(file, rev) self.modecache[(file, rev)] = mode return data def getmode(self, file, rev): return self.modecache[(file, rev)] def getchanges(self, rev): if self._changescache and self._changescache[0] == rev: return self._changescache[1] self._changescache = None self.modecache = {} (paths, parents) = self.paths[rev] if parents: files, copies = self.expandpaths(rev, paths, parents) else: # Perform a full checkout on roots uuid, module, revnum = self.revsplit(rev) entries = svn.client.ls(self.baseurl + urllib.quote(module), optrev(revnum), True, self.ctx) files = [n for n,e in entries.iteritems() if e.kind == svn.core.svn_node_file] copies = {} files.sort() files = zip(files, [rev] * len(files)) # caller caches the result, so free it here to release memory del self.paths[rev] return (files, copies) def getchangedfiles(self, rev, i): changes = self.getchanges(rev) self._changescache = (rev, changes) return [f[0] for f in changes[0]] def getcommit(self, rev): if rev not in self.commits: uuid, module, revnum = self.revsplit(rev) self.module = module self.reparent(module) # We assume that: # - requests for revisions after "stop" come from the # revision graph backward traversal. Cache all of them # down to stop, they will be used eventually. # - requests for revisions before "stop" come to get # isolated branches parents. Just fetch what is needed. stop = self.lastrevs.get(module, 0) if revnum < stop: stop = revnum + 1 self._fetch_revisions(revnum, stop) commit = self.commits[rev] # caller caches the result, so free it here to release memory del self.commits[rev] return commit def gettags(self): tags = {} if self.tags is None: return tags # svn tags are just a convention, project branches left in a # 'tags' directory. There is no other relationship than # ancestry, which is expensive to discover and makes them hard # to update incrementally. Worse, past revisions may be # referenced by tags far away in the future, requiring a deep # history traversal on every calculation. Current code # performs a single backward traversal, tracking moves within # the tags directory (tag renaming) and recording a new tag # everytime a project is copied from outside the tags # directory. It also lists deleted tags, this behaviour may # change in the future. pendings = [] tagspath = self.tags start = svn.ra.get_latest_revnum(self.ra) try: for entry in self._getlog([self.tags], start, self.startrev): origpaths, revnum, author, date, message = entry copies = [(e.copyfrom_path, e.copyfrom_rev, p) for p, e in origpaths.iteritems() if e.copyfrom_path] # Apply moves/copies from more specific to general copies.sort(reverse=True) srctagspath = tagspath if copies and copies[-1][2] == tagspath: # Track tags directory moves srctagspath = copies.pop()[0] for source, sourcerev, dest in copies: if not dest.startswith(tagspath + '/'): continue for tag in pendings: if tag[0].startswith(dest): tagpath = source + tag[0][len(dest):] tag[:2] = [tagpath, sourcerev] break else: pendings.append([source, sourcerev, dest]) # Filter out tags with children coming from different # parts of the repository like: # /tags/tag.1 (from /trunk:10) # /tags/tag.1/foo (from /branches/foo:12) # Here/tags/tag.1 discarded as well as its children. # It happens with tools like cvs2svn. Such tags cannot # be represented in mercurial. addeds = dict((p, e.copyfrom_path) for p,e in origpaths.iteritems() if e.action == 'A') badroots = set() for destroot in addeds: for source, sourcerev, dest in pendings: if (not dest.startswith(destroot + '/') or source.startswith(addeds[destroot] + '/')): continue badroots.add(destroot) break for badroot in badroots: pendings = [p for p in pendings if p[2] != badroot and not p[2].startswith(badroot + '/')] # Tell tag renamings from tag creations remainings = [] for source, sourcerev, dest in pendings: tagname = dest.split('/')[-1] if source.startswith(srctagspath): remainings.append([source, sourcerev, tagname]) continue if tagname in tags: # Keep the latest tag value continue # From revision may be fake, get one with changes try: tagid = self.latest(source, sourcerev) if tagid and tagname not in tags: tags[tagname] = tagid except SvnPathNotFound: # It happens when we are following directories we assumed # were copied with their parents but were really created # in the tag directory. pass pendings = remainings tagspath = srctagspath except SubversionException: self.ui.note(_('no tags found at revision %d\n') % start) return tags def converted(self, rev, destrev): if not self.wc: return if self.convertfp is None: self.convertfp = open(os.path.join(self.wc, '.svn', 'hg-shamap'), 'a') self.convertfp.write('%s %d\n' % (destrev, self.revnum(rev))) self.convertfp.flush() # -- helper functions -- def revid(self, revnum, module=None): if not module: module = self.module return u"svn:%s%s@%s" % (self.uuid, module.decode(self.encoding), revnum) def revnum(self, rev): return int(rev.split('@')[-1]) def revsplit(self, rev): url, revnum = rev.encode(self.encoding).rsplit('@', 1) revnum = int(revnum) parts = url.split('/', 1) uuid = parts.pop(0)[4:] mod = '' if parts: mod = '/' + parts[0] return uuid, mod, revnum def latest(self, path, stop=0): """Find the latest revid affecting path, up to stop. It may return a revision in a different module, since a branch may be moved without a change being reported. Return None if computed module does not belong to rootmodule subtree. """ if not path.startswith(self.rootmodule): # Requests on foreign branches may be forbidden at server level self.ui.debug(_('ignoring foreign branch %r\n') % path) return None if not stop: stop = svn.ra.get_latest_revnum(self.ra) try: prevmodule = self.reparent('') dirent = svn.ra.stat(self.ra, path.strip('/'), stop) self.reparent(prevmodule) except SubversionException: dirent = None if not dirent: raise SvnPathNotFound(_('%s not found up to revision %d') % (path, stop)) # stat() gives us the previous revision on this line of development, but # it might be in *another module*. Fetch the log and detect renames down # to the latest revision. stream = self._getlog([path], stop, dirent.created_rev) try: for entry in stream: paths, revnum, author, date, message = entry if revnum <= dirent.created_rev: break for p in paths: if not path.startswith(p) or not paths[p].copyfrom_path: continue newpath = paths[p].copyfrom_path + path[len(p):] self.ui.debug(_("branch renamed from %s to %s at %d\n") % (path, newpath, revnum)) path = newpath break finally: stream.close() if not path.startswith(self.rootmodule): self.ui.debug(_('ignoring foreign branch %r\n') % path) return None return self.revid(dirent.created_rev, path) def get_blacklist(self): """Avoid certain revision numbers. It is not uncommon for two nearby revisions to cancel each other out, e.g. 'I copied trunk into a subdirectory of itself instead of making a branch'. The converted repository is significantly smaller if we ignore such revisions.""" self.blacklist = set() blacklist = self.blacklist for line in file("blacklist.txt", "r"): if not line.startswith("#"): try: svn_rev = int(line.strip()) blacklist.add(svn_rev) except ValueError: pass # not an integer or a comment def is_blacklisted(self, svn_rev): return svn_rev in self.blacklist def reparent(self, module): """Reparent the svn transport and return the previous parent.""" if self.prevmodule == module: return module svnurl = self.baseurl + urllib.quote(module) prevmodule = self.prevmodule if prevmodule is None: prevmodule = '' self.ui.debug(_("reparent to %s\n") % svnurl) svn.ra.reparent(self.ra, svnurl) self.prevmodule = module return prevmodule def expandpaths(self, rev, paths, parents): entries = [] copyfrom = {} # Map of entrypath, revision for finding source of deleted revisions. copies = {} new_module, revnum = self.revsplit(rev)[1:] if new_module != self.module: self.module = new_module self.reparent(self.module) for path, ent in paths: entrypath = self.getrelpath(path) entry = entrypath.decode(self.encoding) kind = self._checkpath(entrypath, revnum) if kind == svn.core.svn_node_file: entries.append(self.recode(entry)) if not ent.copyfrom_path or not parents: continue # Copy sources not in parent revisions cannot be represented, # ignore their origin for now pmodule, prevnum = self.revsplit(parents[0])[1:] if ent.copyfrom_rev < prevnum: continue copyfrom_path = self.getrelpath(ent.copyfrom_path, pmodule) if not copyfrom_path: continue self.ui.debug(_("copied to %s from %s@%s\n") % (entrypath, copyfrom_path, ent.copyfrom_rev)) copies[self.recode(entry)] = self.recode(copyfrom_path) elif kind == 0: # gone, but had better be a deleted *file* self.ui.debug(_("gone from %s\n") % ent.copyfrom_rev) # if a branch is created but entries are removed in the same # changeset, get the right fromrev # parents cannot be empty here, you cannot remove things from # a root revision. uuid, old_module, fromrev = self.revsplit(parents[0]) basepath = old_module + "/" + self.getrelpath(path) entrypath = basepath def lookup_parts(p): rc = None parts = p.split("/") for i in range(len(parts)): part = "/".join(parts[:i]) info = part, copyfrom.get(part, None) if info[1] is not None: self.ui.debug(_("found parent directory %s\n") % info[1]) rc = info return rc self.ui.debug(_("base, entry %s %s\n") % (basepath, entrypath)) frompath, froment = lookup_parts(entrypath) or (None, revnum - 1) # need to remove fragment from lookup_parts and replace with copyfrom_path if frompath is not None: self.ui.debug(_("munge-o-matic\n")) self.ui.debug(entrypath + '\n') self.ui.debug(entrypath[len(frompath):] + '\n') entrypath = froment.copyfrom_path + entrypath[len(frompath):] fromrev = froment.copyfrom_rev self.ui.debug(_("info: %s %s %s %s\n") % (frompath, froment, ent, entrypath)) # We can avoid the reparent calls if the module has not changed # but it probably does not worth the pain. prevmodule = self.reparent('') fromkind = svn.ra.check_path(self.ra, entrypath.strip('/'), fromrev) self.reparent(prevmodule) if fromkind == svn.core.svn_node_file: # a deleted file entries.append(self.recode(entry)) elif fromkind == svn.core.svn_node_dir: # print "Deleted/moved non-file:", revnum, path, ent # children = self._find_children(path, revnum - 1) # print "find children %s@%d from %d action %s" % (path, revnum, ent.copyfrom_rev, ent.action) # Sometimes this is tricky. For example: in # The Subversion Repository revision 6940 a dir # was copied and one of its files was deleted # from the new location in the same commit. This # code can't deal with that yet. if ent.action == 'C': children = self._find_children(path, fromrev) else: oroot = entrypath.strip('/') nroot = path.strip('/') children = self._find_children(oroot, fromrev) children = [s.replace(oroot,nroot) for s in children] # Mark all [files, not directories] as deleted. for child in children: # Can we move a child directory and its # parent in the same commit? (probably can). Could # cause problems if instead of revnum -1, # we have to look in (copyfrom_path, revnum - 1) entrypath = self.getrelpath("/" + child, module=old_module) if entrypath: entry = self.recode(entrypath.decode(self.encoding)) if entry in copies: # deleted file within a copy del copies[entry] else: entries.append(entry) else: self.ui.debug(_('unknown path in revision %d: %s\n') % \ (revnum, path)) elif kind == svn.core.svn_node_dir: # Should probably synthesize normal file entries # and handle as above to clean up copy/rename handling. # If the directory just had a prop change, # then we shouldn't need to look for its children. if ent.action == 'M': continue # Also this could create duplicate entries. Not sure # whether this will matter. Maybe should make entries a set. # print "Changed directory", revnum, path, ent.action, ent.copyfrom_path, ent.copyfrom_rev # This will fail if a directory was copied # from another branch and then some of its files # were deleted in the same transaction. children = sorted(self._find_children(path, revnum)) for child in children: # Can we move a child directory and its # parent in the same commit? (probably can). Could # cause problems if instead of revnum -1, # we have to look in (copyfrom_path, revnum - 1) entrypath = self.getrelpath("/" + child) # print child, self.module, entrypath if entrypath: # Need to filter out directories here... kind = self._checkpath(entrypath, revnum) if kind != svn.core.svn_node_dir: entries.append(self.recode(entrypath)) # Copies here (must copy all from source) # Probably not a real problem for us if # source does not exist if not ent.copyfrom_path or not parents: continue # Copy sources not in parent revisions cannot be represented, # ignore their origin for now pmodule, prevnum = self.revsplit(parents[0])[1:] if ent.copyfrom_rev < prevnum: continue copyfrompath = ent.copyfrom_path.decode(self.encoding) copyfrompath = self.getrelpath(copyfrompath, pmodule) if not copyfrompath: continue copyfrom[path] = ent self.ui.debug(_("mark %s came from %s:%d\n") % (path, copyfrompath, ent.copyfrom_rev)) children = self._find_children(ent.copyfrom_path, ent.copyfrom_rev) children.sort() for child in children: entrypath = self.getrelpath("/" + child, pmodule) if not entrypath: continue entry = entrypath.decode(self.encoding) copytopath = path + entry[len(copyfrompath):] copytopath = self.getrelpath(copytopath) copies[self.recode(copytopath)] = self.recode(entry, pmodule) return (list(set(entries)), copies) def _fetch_revisions(self, from_revnum, to_revnum): if from_revnum < to_revnum: from_revnum, to_revnum = to_revnum, from_revnum self.child_cset = None def parselogentry(orig_paths, revnum, author, date, message): """Return the parsed commit object or None, and True if the revision is a branch root. """ self.ui.debug(_("parsing revision %d (%d changes)\n") % (revnum, len(orig_paths))) branched = False rev = self.revid(revnum) # branch log might return entries for a parent we already have if rev in self.commits or revnum < to_revnum: return None, branched parents = [] # check whether this revision is the start of a branch or part # of a branch renaming orig_paths = sorted(orig_paths.iteritems()) root_paths = [(p,e) for p,e in orig_paths if self.module.startswith(p)] if root_paths: path, ent = root_paths[-1] if ent.copyfrom_path: branched = True newpath = ent.copyfrom_path + self.module[len(path):] # ent.copyfrom_rev may not be the actual last revision previd = self.latest(newpath, ent.copyfrom_rev) if previd is not None: prevmodule, prevnum = self.revsplit(previd)[1:] if prevnum >= self.startrev: parents = [previd] self.ui.note(_('found parent of branch %s at %d: %s\n') % (self.module, prevnum, prevmodule)) else: self.ui.debug(_("no copyfrom path, don't know what to do.\n")) paths = [] # filter out unrelated paths for path, ent in orig_paths: if self.getrelpath(path) is None: continue paths.append((path, ent)) # Example SVN datetime. Includes microseconds. # ISO-8601 conformant # '2007-01-04T17:35:00.902377Z' date = util.parsedate(date[:19] + " UTC", ["%Y-%m-%dT%H:%M:%S"]) log = message and self.recode(message) or '' author = author and self.recode(author) or '' try: branch = self.module.split("/")[-1] if branch == 'trunk': branch = '' except IndexError: branch = None cset = commit(author=author, date=util.datestr(date), desc=log, parents=parents, branch=branch, rev=rev.encode('utf-8')) self.commits[rev] = cset # The parents list is *shared* among self.paths and the # commit object. Both will be updated below. self.paths[rev] = (paths, cset.parents) if self.child_cset and not self.child_cset.parents: self.child_cset.parents[:] = [rev] self.child_cset = cset return cset, branched self.ui.note(_('fetching revision log for "%s" from %d to %d\n') % (self.module, from_revnum, to_revnum)) try: firstcset = None lastonbranch = False stream = self._getlog([self.module], from_revnum, to_revnum) try: for entry in stream: paths, revnum, author, date, message = entry if revnum < self.startrev: lastonbranch = True break if self.is_blacklisted(revnum): self.ui.note(_('skipping blacklisted revision %d\n') % revnum) continue if not paths: self.ui.debug(_('revision %d has no entries\n') % revnum) continue cset, lastonbranch = parselogentry(paths, revnum, author, date, message) if cset: firstcset = cset if lastonbranch: break finally: stream.close() if not lastonbranch and firstcset and not firstcset.parents: # The first revision of the sequence (the last fetched one) # has invalid parents if not a branch root. Find the parent # revision now, if any. try: firstrevnum = self.revnum(firstcset.rev) if firstrevnum > 1: latest = self.latest(self.module, firstrevnum - 1) if latest: firstcset.parents.append(latest) except SvnPathNotFound: pass except SubversionException, (inst, num): if num == svn.core.SVN_ERR_FS_NO_SUCH_REVISION: raise util.Abort(_('svn: branch has no revision %s') % to_revnum) raise def _getfile(self, file, rev): # TODO: ra.get_file transmits the whole file instead of diffs. mode = '' try: new_module, revnum = self.revsplit(rev)[1:] if self.module != new_module: self.module = new_module self.reparent(self.module) io = StringIO() info = svn.ra.get_file(self.ra, file, revnum, io) data = io.getvalue() # ra.get_files() seems to keep a reference on the input buffer # preventing collection. Release it explicitely. io.close() if isinstance(info, list): info = info[-1] mode = ("svn:executable" in info) and 'x' or '' mode = ("svn:special" in info) and 'l' or mode except SubversionException, e: notfound = (svn.core.SVN_ERR_FS_NOT_FOUND, svn.core.SVN_ERR_RA_DAV_PATH_NOT_FOUND) if e.apr_err in notfound: # File not found raise IOError() raise if mode == 'l': link_prefix = "link " if data.startswith(link_prefix): data = data[len(link_prefix):] return data, mode def _find_children(self, path, revnum): path = path.strip('/') pool = Pool() rpath = '/'.join([self.baseurl, urllib.quote(path)]).strip('/') return ['%s/%s' % (path, x) for x in svn.client.ls(rpath, optrev(revnum), True, self.ctx, pool).keys()] def getrelpath(self, path, module=None): if module is None: module = self.module # Given the repository url of this wc, say # "http://server/plone/CMFPlone/branches/Plone-2_0-branch" # extract the "entry" portion (a relative path) from what # svn log --xml says, ie # "/CMFPlone/branches/Plone-2_0-branch/tests/PloneTestCase.py" # that is to say "tests/PloneTestCase.py" if path.startswith(module): relative = path.rstrip('/')[len(module):] if relative.startswith('/'): return relative[1:] elif relative == '': return relative # The path is outside our tracked tree... self.ui.debug(_('%r is not under %r, ignoring\n') % (path, module)) return None def _checkpath(self, path, revnum): # ra.check_path does not like leading slashes very much, it leads # to PROPFIND subversion errors return svn.ra.check_path(self.ra, path.strip('/'), revnum) def _getlog(self, paths, start, end, limit=0, discover_changed_paths=True, strict_node_history=False): # Normalize path names, svn >= 1.5 only wants paths relative to # supplied URL relpaths = [] for p in paths: if not p.startswith('/'): p = self.module + '/' + p relpaths.append(p.strip('/')) args = [self.baseurl, relpaths, start, end, limit, discover_changed_paths, strict_node_history] arg = encodeargs(args) hgexe = util.hgexecutable() cmd = '%s debugsvnlog' % util.shellquote(hgexe) stdin, stdout = util.popen2(cmd, 'b') stdin.write(arg) stdin.close() return logstream(stdout) pre_revprop_change = '''#!/bin/sh REPOS="$1" REV="$2" USER="$3" PROPNAME="$4" ACTION="$5" if [ "$ACTION" = "M" -a "$PROPNAME" = "svn:log" ]; then exit 0; fi if [ "$ACTION" = "A" -a "$PROPNAME" = "hg:convert-branch" ]; then exit 0; fi if [ "$ACTION" = "A" -a "$PROPNAME" = "hg:convert-rev" ]; then exit 0; fi echo "Changing prohibited revision property" >&2 exit 1 ''' class svn_sink(converter_sink, commandline): commit_re = re.compile(r'Committed revision (\d+).', re.M) def prerun(self): if self.wc: os.chdir(self.wc) def postrun(self): if self.wc: os.chdir(self.cwd) def join(self, name): return os.path.join(self.wc, '.svn', name) def revmapfile(self): return self.join('hg-shamap') def authorfile(self): return self.join('hg-authormap') def __init__(self, ui, path): converter_sink.__init__(self, ui, path) commandline.__init__(self, ui, 'svn') self.delete = [] self.setexec = [] self.delexec = [] self.copies = [] self.wc = None self.cwd = os.getcwd() path = os.path.realpath(path) created = False if os.path.isfile(os.path.join(path, '.svn', 'entries')): self.wc = path self.run0('update') else: wcpath = os.path.join(os.getcwd(), os.path.basename(path) + '-wc') if os.path.isdir(os.path.dirname(path)): if not os.path.exists(os.path.join(path, 'db', 'fs-type')): ui.status(_('initializing svn repo %r\n') % os.path.basename(path)) commandline(ui, 'svnadmin').run0('create', path) created = path path = util.normpath(path) if not path.startswith('/'): path = '/' + path path = 'file://' + path ui.status(_('initializing svn wc %r\n') % os.path.basename(wcpath)) self.run0('checkout', path, wcpath) self.wc = wcpath self.opener = util.opener(self.wc) self.wopener = util.opener(self.wc) self.childmap = mapfile(ui, self.join('hg-childmap')) self.is_exec = util.checkexec(self.wc) and util.is_exec or None if created: hook = os.path.join(created, 'hooks', 'pre-revprop-change') fp = open(hook, 'w') fp.write(pre_revprop_change) fp.close() util.set_flags(hook, False, True) xport = transport.SvnRaTransport(url=geturl(path)) self.uuid = svn.ra.get_uuid(xport.ra) def wjoin(self, *names): return os.path.join(self.wc, *names) def putfile(self, filename, flags, data): if 'l' in flags: self.wopener.symlink(data, filename) else: try: if os.path.islink(self.wjoin(filename)): os.unlink(filename) except OSError: pass self.wopener(filename, 'w').write(data) if self.is_exec: was_exec = self.is_exec(self.wjoin(filename)) else: # On filesystems not supporting execute-bit, there is no way # to know if it is set but asking subversion. Setting it # systematically is just as expensive and much simpler. was_exec = 'x' not in flags util.set_flags(self.wjoin(filename), False, 'x' in flags) if was_exec: if 'x' not in flags: self.delexec.append(filename) else: if 'x' in flags: self.setexec.append(filename) def _copyfile(self, source, dest): # SVN's copy command pukes if the destination file exists, but # our copyfile method expects to record a copy that has # already occurred. Cross the semantic gap. wdest = self.wjoin(dest) exists = os.path.exists(wdest) if exists: fd, tempname = tempfile.mkstemp( prefix='hg-copy-', dir=os.path.dirname(wdest)) os.close(fd) os.unlink(tempname) os.rename(wdest, tempname) try: self.run0('copy', source, dest) finally: if exists: try: os.unlink(wdest) except OSError: pass os.rename(tempname, wdest) def dirs_of(self, files): dirs = set() for f in files: if os.path.isdir(self.wjoin(f)): dirs.add(f) for i in strutil.rfindall(f, '/'): dirs.add(f[:i]) return dirs def add_dirs(self, files): add_dirs = [d for d in sorted(self.dirs_of(files)) if not os.path.exists(self.wjoin(d, '.svn', 'entries'))] if add_dirs: self.xargs(add_dirs, 'add', non_recursive=True, quiet=True) return add_dirs def add_files(self, files): if files: self.xargs(files, 'add', quiet=True) return files def tidy_dirs(self, names): deleted = [] for d in sorted(self.dirs_of(names), reverse=True): wd = self.wjoin(d) if os.listdir(wd) == '.svn': self.run0('delete', d) deleted.append(d) return deleted def addchild(self, parent, child): self.childmap[parent] = child def revid(self, rev): return u"svn:%s@%s" % (self.uuid, rev) def putcommit(self, files, copies, parents, commit, source): # Apply changes to working copy for f, v in files: try: data = source.getfile(f, v) except IOError: self.delete.append(f) else: e = source.getmode(f, v) self.putfile(f, e, data) if f in copies: self.copies.append([copies[f], f]) files = [f[0] for f in files] for parent in parents: try: return self.revid(self.childmap[parent]) except KeyError: pass entries = set(self.delete) files = frozenset(files) entries.update(self.add_dirs(files.difference(entries))) if self.copies: for s, d in self.copies: self._copyfile(s, d) self.copies = [] if self.delete: self.xargs(self.delete, 'delete') self.delete = [] entries.update(self.add_files(files.difference(entries))) entries.update(self.tidy_dirs(entries)) if self.delexec: self.xargs(self.delexec, 'propdel', 'svn:executable') self.delexec = [] if self.setexec: self.xargs(self.setexec, 'propset', 'svn:executable', '*') self.setexec = [] fd, messagefile = tempfile.mkstemp(prefix='hg-convert-') fp = os.fdopen(fd, 'w') fp.write(commit.desc) fp.close() try: output = self.run0('commit', username=util.shortuser(commit.author), file=messagefile, encoding='utf-8') try: rev = self.commit_re.search(output).group(1) except AttributeError: self.ui.warn(_('unexpected svn output:\n')) self.ui.warn(output) raise util.Abort(_('unable to cope with svn output')) if commit.rev: self.run('propset', 'hg:convert-rev', commit.rev, revprop=True, revision=rev) if commit.branch and commit.branch != 'default': self.run('propset', 'hg:convert-branch', commit.branch, revprop=True, revision=rev) for parent in parents: self.addchild(parent, rev) return self.revid(rev) finally: os.unlink(messagefile) def puttags(self, tags): self.ui.warn(_('XXX TAGS NOT IMPLEMENTED YET\n'))