Mercurial > hgsubversion
view hgsubversion/maps.py @ 1142:f4a32d381e03
util: remove all calls to load_string
Now that we use json, we no longer need to load strings differently from any
other serialized data.
author | Sean Farley <sean.michael.farley@gmail.com> |
---|---|
date | Sat, 15 Feb 2014 10:45:51 -0600 |
parents | e015cd34168d |
children | 729becb9154b |
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''' Module for self-contained maps. ''' import errno import os from mercurial import util as hgutil from mercurial import node import svncommands import util class AuthorMap(dict): '''A mapping from Subversion-style authors to Mercurial-style authors, and back. The data is stored persistently on disk. If the 'hgsubversion.defaultauthors' configuration option is set to false, attempting to obtain an unknown author will fail with an Abort. If the 'hgsubversion.caseignoreauthors' configuration option is set to true, the userid from Subversion is always compared lowercase. ''' def __init__(self, ui, path, defaulthost=None): '''Initialise a new AuthorMap. The ui argument is used to print diagnostic messages. The path argument is the location of the backing store, typically .hg/svn/authors. ''' self.ui = ui self.path = path self.use_defaultauthors = self.ui.configbool('hgsubversion', 'defaultauthors', True) self.caseignoreauthors = self.ui.configbool('hgsubversion', 'caseignoreauthors', False) if defaulthost: self.defaulthost = '@%s' % defaulthost.lstrip('@') else: self.defaulthost = '' self.super = super(AuthorMap, self) self.super.__init__() self.load(path) def load(self, path): ''' Load mappings from a file at the specified path. ''' path = os.path.expandvars(path) if not os.path.exists(path): return writing = False if path != self.path: writing = open(self.path, 'a') self.ui.debug('reading authormap from %s\n' % path) f = open(path, 'r') for number, line_org in enumerate(f): line = line_org.split('#')[0] if not line.strip(): continue try: src, dst = line.split('=', 1) except (IndexError, ValueError): msg = 'ignoring line %i in author map %s: %s\n' self.ui.status(msg % (number, path, line.rstrip())) continue src = src.strip() dst = dst.strip() if self.caseignoreauthors: src = src.lower() if writing: if not src in self: self.ui.debug('adding author %s to author map\n' % src) elif dst != self[src]: msg = 'overriding author: "%s" to "%s" (%s)\n' self.ui.status(msg % (self[src], dst, src)) writing.write(line_org) self[src] = dst f.close() if writing: writing.close() def __getitem__(self, author): ''' Similar to dict.__getitem__, except in case of an unknown author. In such cases, a new value is generated and added to the dictionary as well as the backing store. ''' if author is None: author = '(no author)' if self.caseignoreauthors: search_author = author.lower() else: search_author = author if search_author in self: result = self.super.__getitem__(search_author) elif self.use_defaultauthors: self[author] = result = '%s%s' % (author, self.defaulthost) msg = 'substituting author "%s" for default "%s"\n' self.ui.debug(msg % (author, result)) else: msg = 'author %s has no entry in the author map!' raise hgutil.Abort(msg % author) self.ui.debug('mapping author "%s" to "%s"\n' % (author, result)) return result def reverselookup(self, author): for svnauthor, hgauthor in self.iteritems(): if author == hgauthor: return svnauthor else: # Mercurial incorrectly splits at e.g. '.', so we roll our own. return author.rsplit('@', 1)[0] class Tags(dict): """Map tags to converted node identifier. tag names are non-empty strings. Tags are saved in a file called tagmap, for backwards compatibility reasons. """ VERSION = 2 @classmethod def filepath(cls, repo): return os.path.join(repo.path, 'svn', 'tagmap') def __init__(self, repo, endrev=None): dict.__init__(self) self.path = self.filepath(repo) self.endrev = endrev if os.path.isfile(self.path): self._load(repo) else: self._write() def _load(self, repo): f = open(self.path) ver = int(f.readline()) if ver < self.VERSION: repo.ui.status('tag map outdated, running rebuildmeta...\n') f.close() os.unlink(self.path) svncommands.rebuildmeta(repo.ui, repo, ()) return elif ver != self.VERSION: raise hgutil.Abort('tagmap too new -- please upgrade') for l in f: ha, revision, tag = l.split(' ', 2) revision = int(revision) tag = tag[:-1] if self.endrev is not None and revision > self.endrev: break if not tag: continue dict.__setitem__(self, tag, node.bin(ha)) f.close() def _write(self): assert self.endrev is None f = open(self.path, 'w') f.write('%s\n' % self.VERSION) f.close() def update(self, other): for k, v in other.iteritems(): self[k] = v def __contains__(self, tag): return (tag and dict.__contains__(self, tag) and dict.__getitem__(self, tag) != node.nullid) def __getitem__(self, tag): if tag and tag in self: return dict.__getitem__(self, tag) raise KeyError() def __setitem__(self, tag, info): if not tag: raise hgutil.Abort('tag cannot be empty') ha, revision = info f = open(self.path, 'a') f.write('%s %s %s\n' % (node.hex(ha), revision, tag)) f.close() dict.__setitem__(self, tag, ha) class RevMap(dict): VERSION = 1 def __init__(self, repo): dict.__init__(self) self.path = self.mappath(repo) self.repo = repo self.ypath = os.path.join(repo.path, 'svn', 'lastpulled') # TODO(durin42): Consider moving management of the youngest # file to svnmeta itself rather than leaving it here. # must load youngest file first, or else self._load() can # clobber the info self._youngest = util.load(self.ypath, 0) self.oldest = 0 if os.path.isfile(self.path): self._load() else: self._write() def _set_youngest(self, rev): self._youngest = max(self._youngest, rev) util.save_string(self.ypath, str(self._youngest) + '\n') def _get_youngest(self): return self._youngest youngest = property(_get_youngest, _set_youngest) def hashes(self): return dict((v, k) for (k, v) in self.iteritems()) def branchedits(self, branch, rev): check = lambda x: x[0][1] == branch and x[0][0] < rev.revnum return sorted(filter(check, self.iteritems()), reverse=True) @staticmethod def mappath(repo): return os.path.join(repo.path, 'svn', 'rev_map') @classmethod def readmapfile(cls, repo, missingok=True): try: f = open(cls.mappath(repo)) except IOError, err: if not missingok or err.errno != errno.ENOENT: raise return iter([]) ver = int(f.readline()) if ver != cls.VERSION: raise hgutil.Abort('revmap too new -- please upgrade') return f def _load(self): for l in self.readmapfile(self.repo): revnum, ha, branch = l.split(' ', 2) if branch == '\n': branch = None else: branch = branch[:-1] revnum = int(revnum) if revnum > self.youngest or not self.youngest: self.youngest = revnum if revnum < self.oldest or not self.oldest: self.oldest = revnum dict.__setitem__(self, (revnum, branch), node.bin(ha)) def _write(self): f = open(self.path, 'w') f.write('%s\n' % self.VERSION) f.close() def __setitem__(self, key, ha): revnum, branch = key f = open(self.path, 'a') b = branch or '' f.write(str(revnum) + ' ' + node.hex(ha) + ' ' + b + '\n') f.close() if revnum > self.youngest or not self.youngest: self.youngest = revnum if revnum < self.oldest or not self.oldest: self.oldest = revnum dict.__setitem__(self, (revnum, branch), ha) class FileMap(object): VERSION = 1 def __init__(self, ui, path): '''Initialise a new FileMap. The ui argument is used to print diagnostic messages. The path argument is the location of the backing store, typically .hg/svn/filemap. ''' self.ui = ui self.path = path self.include = {} self.exclude = {} if os.path.isfile(self.path): self._load() else: self._write() def _rpairs(self, name): e = len(name) while e != -1: yield name[:e], name[e+1:] e = name.rfind('/', 0, e) yield '.', name def check(self, m, path): m = getattr(self, m) for pre, _suf in self._rpairs(path): if pre in m: return m[pre] return -1 def __contains__(self, path): if not len(path): return True if len(self.include): inc = self.check('include', path) elif not len(self.exclude): return True else: inc = 0 if len(self.exclude): exc = self.check('exclude', path) else: exc = -1 # respect rule order: newer rules override older return inc > exc # Needed so empty filemaps are false def __len__(self): return len(self.include) + len(self.exclude) def add(self, fn, m, path): mapping = getattr(self, m) if path in mapping: msg = 'duplicate %s entry in %s: "%s"\n' self.ui.status(msg % (m, fn, path)) return bits = m.rstrip('e'), path self.ui.debug('%sing %s\n' % bits) # respect rule order mapping[path] = len(self) if fn != self.path: f = open(self.path, 'a') f.write(m + ' ' + path + '\n') f.close() def load(self, fn): self.ui.debug('reading file map from %s\n' % fn) f = open(fn, 'r') self.load_fd(f, fn) f.close() def load_fd(self, f, fn): for line in f: if line.strip() == '' or line.strip()[0] == '#': continue try: cmd, path = line.split(' ', 1) cmd = cmd.strip() path = path.strip() if cmd in ('include', 'exclude'): self.add(fn, cmd, path) continue self.ui.warn('unknown filemap command %s\n' % cmd) except IndexError: msg = 'ignoring bad line in filemap %s: %s\n' self.ui.warn(msg % (fn, line.rstrip())) def _load(self): self.ui.debug('reading in-repo file map from %s\n' % self.path) f = open(self.path) ver = int(f.readline()) if ver != self.VERSION: raise hgutil.Abort('filemap too new -- please upgrade') self.load_fd(f, self.path) f.close() def _write(self): f = open(self.path, 'w') f.write('%s\n' % self.VERSION) f.close() class BranchMap(dict): '''Facility for controlled renaming of branch names. Example: oldname = newname other = default All changes on the oldname branch will now be on the newname branch; all changes on other will now be on default (have no branch name set). ''' def __init__(self, ui, path): self.ui = ui self.path = path self.super = super(BranchMap, self) self.super.__init__() self.load(path) def load(self, path): '''Load mappings from a file at the specified path.''' if not os.path.exists(path): return writing = False if path != self.path: writing = open(self.path, 'a') self.ui.debug('reading branchmap from %s\n' % path) f = open(path, 'r') for number, line in enumerate(f): if writing: writing.write(line) line = line.split('#')[0] if not line.strip(): continue try: src, dst = line.split('=', 1) except (IndexError, ValueError): msg = 'ignoring line %i in branch map %s: %s\n' self.ui.status(msg % (number, path, line.rstrip())) continue src = src.strip() dst = dst.strip() self.ui.debug('adding branch %s to branch map\n' % src) if not dst: # prevent people from assuming such lines are valid raise hgutil.Abort('removing branches is not supported, yet\n' '(line %i in branch map %s)' % (number, path)) elif src in self and dst != self[src]: msg = 'overriding branch: "%s" to "%s" (%s)\n' self.ui.status(msg % (self[src], dst, src)) self[src] = dst f.close() if writing: writing.close() class TagMap(dict): '''Facility for controlled renaming of tags. Example: oldname = newname other = The oldname tag from SVN will be represented as newname in the hg tags; the other tag will not be reflected in the hg repository. ''' def __init__(self, ui, path): self.ui = ui self.path = path self.super = super(TagMap, self) self.super.__init__() self.load(path) def load(self, path): '''Load mappings from a file at the specified path.''' if not os.path.exists(path): return writing = False if path != self.path: writing = open(self.path, 'a') self.ui.debug('reading tag renames from %s\n' % path) f = open(path, 'r') for number, line in enumerate(f): if writing: writing.write(line) line = line.split('#')[0] if not line.strip(): continue try: src, dst = line.split('=', 1) except (IndexError, ValueError): msg = 'ignoring line %i in tag renames %s: %s\n' self.ui.status(msg % (number, path, line.rstrip())) continue src = src.strip() dst = dst.strip() self.ui.debug('adding tag %s to tag renames\n' % src) if src in self and dst != self[src]: msg = 'overriding tag rename: "%s" to "%s" (%s)\n' self.ui.status(msg % (self[src], dst, src)) self[src] = dst f.close() if writing: writing.close()