mirror of
https://github.com/facebook/sapling.git
synced 2024-10-09 16:31:02 +03:00
6a6a200bb6
Using our new generator, we factor out revmap.youngest and renamed it to the same name as the config file 'lastpulled' because that is the name of the file and is arguably less confusing to read.
483 lines
14 KiB
Python
483 lines
14 KiB
Python
''' Module for self-contained maps. '''
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import errno
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import os
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from mercurial import util as hgutil
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from mercurial import node
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import svncommands
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import util
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class AuthorMap(dict):
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'''A mapping from Subversion-style authors to Mercurial-style
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authors, and back. The data is stored persistently on disk.
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If the 'hgsubversion.defaultauthors' configuration option is set to false,
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attempting to obtain an unknown author will fail with an Abort.
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If the 'hgsubversion.caseignoreauthors' configuration option is set to true,
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the userid from Subversion is always compared lowercase.
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'''
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def __init__(self, ui, path, defaulthost=None):
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'''Initialise a new AuthorMap.
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The ui argument is used to print diagnostic messages.
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The path argument is the location of the backing store,
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typically .hg/svn/authors.
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'''
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self.ui = ui
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self.path = path
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self.use_defaultauthors = self.ui.configbool('hgsubversion', 'defaultauthors', True)
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self.caseignoreauthors = self.ui.configbool('hgsubversion', 'caseignoreauthors', False)
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if defaulthost:
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self.defaulthost = '@%s' % defaulthost.lstrip('@')
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else:
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self.defaulthost = ''
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self.super = super(AuthorMap, self)
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self.super.__init__()
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self.load(path)
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def load(self, path):
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''' Load mappings from a file at the specified path. '''
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path = os.path.expandvars(path)
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if not os.path.exists(path):
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return
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writing = False
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if path != self.path:
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writing = open(self.path, 'a')
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self.ui.debug('reading authormap from %s\n' % path)
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f = open(path, 'r')
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for number, line_org in enumerate(f):
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line = line_org.split('#')[0]
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if not line.strip():
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continue
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try:
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src, dst = line.split('=', 1)
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except (IndexError, ValueError):
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msg = 'ignoring line %i in author map %s: %s\n'
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self.ui.status(msg % (number, path, line.rstrip()))
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continue
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src = src.strip()
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dst = dst.strip()
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if self.caseignoreauthors:
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src = src.lower()
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if writing:
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if not src in self:
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self.ui.debug('adding author %s to author map\n' % src)
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elif dst != self[src]:
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msg = 'overriding author: "%s" to "%s" (%s)\n'
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self.ui.status(msg % (self[src], dst, src))
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writing.write(line_org)
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self[src] = dst
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f.close()
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if writing:
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writing.close()
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def __getitem__(self, author):
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''' Similar to dict.__getitem__, except in case of an unknown author.
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In such cases, a new value is generated and added to the dictionary
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as well as the backing store. '''
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if author is None:
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author = '(no author)'
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if self.caseignoreauthors:
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search_author = author.lower()
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else:
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search_author = author
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if search_author in self:
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result = self.super.__getitem__(search_author)
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elif self.use_defaultauthors:
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self[author] = result = '%s%s' % (author, self.defaulthost)
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msg = 'substituting author "%s" for default "%s"\n'
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self.ui.debug(msg % (author, result))
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else:
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msg = 'author %s has no entry in the author map!'
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raise hgutil.Abort(msg % author)
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self.ui.debug('mapping author "%s" to "%s"\n' % (author, result))
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return result
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def reverselookup(self, author):
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for svnauthor, hgauthor in self.iteritems():
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if author == hgauthor:
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return svnauthor
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else:
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# Mercurial incorrectly splits at e.g. '.', so we roll our own.
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return author.rsplit('@', 1)[0]
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class Tags(dict):
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"""Map tags to converted node identifier.
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tag names are non-empty strings. Tags are saved in a file
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called tagmap, for backwards compatibility reasons.
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"""
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VERSION = 2
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@classmethod
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def filepath(cls, repo):
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return os.path.join(repo.path, 'svn', 'tagmap')
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def __init__(self, repo, endrev=None):
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dict.__init__(self)
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self.path = self.filepath(repo)
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self.endrev = endrev
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if os.path.isfile(self.path):
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self._load(repo)
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else:
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self._write()
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def _load(self, repo):
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f = open(self.path)
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ver = int(f.readline())
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if ver < self.VERSION:
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repo.ui.status('tag map outdated, running rebuildmeta...\n')
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f.close()
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os.unlink(self.path)
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svncommands.rebuildmeta(repo.ui, repo, ())
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return
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elif ver != self.VERSION:
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raise hgutil.Abort('tagmap too new -- please upgrade')
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for l in f:
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ha, revision, tag = l.split(' ', 2)
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revision = int(revision)
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tag = tag[:-1]
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if self.endrev is not None and revision > self.endrev:
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break
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if not tag:
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continue
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dict.__setitem__(self, tag, node.bin(ha))
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f.close()
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def _write(self):
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assert self.endrev is None
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f = open(self.path, 'w')
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f.write('%s\n' % self.VERSION)
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f.close()
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def update(self, other):
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for k, v in other.iteritems():
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self[k] = v
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def __contains__(self, tag):
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return (tag and dict.__contains__(self, tag)
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and dict.__getitem__(self, tag) != node.nullid)
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def __getitem__(self, tag):
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if tag and tag in self:
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return dict.__getitem__(self, tag)
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raise KeyError()
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def __setitem__(self, tag, info):
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if not tag:
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raise hgutil.Abort('tag cannot be empty')
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ha, revision = info
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f = open(self.path, 'a')
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f.write('%s %s %s\n' % (node.hex(ha), revision, tag))
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f.close()
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dict.__setitem__(self, tag, ha)
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class RevMap(dict):
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VERSION = 1
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def __init__(self, meta):
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dict.__init__(self)
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self.meta = meta
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self.oldest = 0
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if os.path.isfile(self.meta.revmap_file):
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self._load()
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else:
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self._write()
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def hashes(self):
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return dict((v, k) for (k, v) in self.iteritems())
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def branchedits(self, branch, rev):
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check = lambda x: x[0][1] == branch and x[0][0] < rev.revnum
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return sorted(filter(check, self.iteritems()), reverse=True)
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@classmethod
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def readmapfile(cls, path, missingok=True):
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try:
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f = open(path)
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except IOError, err:
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if not missingok or err.errno != errno.ENOENT:
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raise
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return iter([])
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ver = int(f.readline())
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if ver != cls.VERSION:
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raise hgutil.Abort('revmap too new -- please upgrade')
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return f
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def _load(self):
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for l in self.readmapfile(self.meta.revmap_file):
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revnum, ha, branch = l.split(' ', 2)
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if branch == '\n':
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branch = None
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else:
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branch = branch[:-1]
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revnum = int(revnum)
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if revnum > self.meta.lastpulled or not self.meta.lastpulled:
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self.meta.lastpulled = revnum
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if revnum < self.oldest or not self.oldest:
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self.oldest = revnum
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dict.__setitem__(self, (revnum, branch), node.bin(ha))
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def _write(self):
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f = open(self.meta.revmap_file, 'w')
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f.write('%s\n' % self.VERSION)
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f.close()
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def __setitem__(self, key, ha):
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revnum, branch = key
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f = open(self.meta.revmap_file, 'a')
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b = branch or ''
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f.write(str(revnum) + ' ' + node.hex(ha) + ' ' + b + '\n')
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f.close()
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if revnum > self.meta.lastpulled or not self.meta.lastpulled:
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self.meta.lastpulled = revnum
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if revnum < self.oldest or not self.oldest:
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self.oldest = revnum
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dict.__setitem__(self, (revnum, branch), ha)
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class FileMap(object):
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VERSION = 1
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def __init__(self, ui, path):
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'''Initialise a new FileMap.
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The ui argument is used to print diagnostic messages.
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The path argument is the location of the backing store,
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typically .hg/svn/filemap.
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'''
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self.ui = ui
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self.path = path
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self.include = {}
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self.exclude = {}
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if os.path.isfile(self.path):
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self._load()
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else:
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self._write()
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def _rpairs(self, name):
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e = len(name)
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while e != -1:
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yield name[:e], name[e+1:]
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e = name.rfind('/', 0, e)
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yield '.', name
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def check(self, m, path):
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m = getattr(self, m)
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for pre, _suf in self._rpairs(path):
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if pre in m:
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return m[pre]
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return -1
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def __contains__(self, path):
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if not len(path):
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return True
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if len(self.include):
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inc = self.check('include', path)
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elif not len(self.exclude):
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return True
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else:
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inc = 0
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if len(self.exclude):
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exc = self.check('exclude', path)
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else:
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exc = -1
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# respect rule order: newer rules override older
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return inc > exc
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# Needed so empty filemaps are false
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def __len__(self):
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return len(self.include) + len(self.exclude)
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def add(self, fn, m, path):
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mapping = getattr(self, m)
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if path in mapping:
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msg = 'duplicate %s entry in %s: "%s"\n'
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self.ui.status(msg % (m, fn, path))
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return
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bits = m.rstrip('e'), path
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self.ui.debug('%sing %s\n' % bits)
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# respect rule order
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mapping[path] = len(self)
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if fn != self.path:
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f = open(self.path, 'a')
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f.write(m + ' ' + path + '\n')
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f.close()
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def load(self, fn):
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self.ui.debug('reading file map from %s\n' % fn)
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f = open(fn, 'r')
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self.load_fd(f, fn)
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f.close()
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def load_fd(self, f, fn):
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for line in f:
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if line.strip() == '' or line.strip()[0] == '#':
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continue
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try:
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cmd, path = line.split(' ', 1)
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cmd = cmd.strip()
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path = path.strip()
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if cmd in ('include', 'exclude'):
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self.add(fn, cmd, path)
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continue
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self.ui.warn('unknown filemap command %s\n' % cmd)
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except IndexError:
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msg = 'ignoring bad line in filemap %s: %s\n'
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self.ui.warn(msg % (fn, line.rstrip()))
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def _load(self):
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self.ui.debug('reading in-repo file map from %s\n' % self.path)
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f = open(self.path)
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ver = int(f.readline())
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if ver != self.VERSION:
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raise hgutil.Abort('filemap too new -- please upgrade')
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self.load_fd(f, self.path)
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f.close()
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def _write(self):
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f = open(self.path, 'w')
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f.write('%s\n' % self.VERSION)
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f.close()
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class BranchMap(dict):
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'''Facility for controlled renaming of branch names. Example:
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oldname = newname
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other = default
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All changes on the oldname branch will now be on the newname branch; all
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changes on other will now be on default (have no branch name set).
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'''
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def __init__(self, ui, path):
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self.ui = ui
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self.path = path
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self.super = super(BranchMap, self)
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self.super.__init__()
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self.load(path)
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def load(self, path):
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'''Load mappings from a file at the specified path.'''
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if not os.path.exists(path):
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return
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writing = False
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if path != self.path:
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writing = open(self.path, 'a')
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self.ui.debug('reading branchmap from %s\n' % path)
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f = open(path, 'r')
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for number, line in enumerate(f):
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if writing:
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writing.write(line)
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line = line.split('#')[0]
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if not line.strip():
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continue
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try:
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src, dst = line.split('=', 1)
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except (IndexError, ValueError):
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msg = 'ignoring line %i in branch map %s: %s\n'
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self.ui.status(msg % (number, path, line.rstrip()))
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continue
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src = src.strip()
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dst = dst.strip()
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self.ui.debug('adding branch %s to branch map\n' % src)
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if not dst:
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# prevent people from assuming such lines are valid
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raise hgutil.Abort('removing branches is not supported, yet\n'
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'(line %i in branch map %s)'
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% (number, path))
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elif src in self and dst != self[src]:
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msg = 'overriding branch: "%s" to "%s" (%s)\n'
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self.ui.status(msg % (self[src], dst, src))
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self[src] = dst
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f.close()
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if writing:
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writing.close()
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class TagMap(dict):
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'''Facility for controlled renaming of tags. Example:
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oldname = newname
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other =
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The oldname tag from SVN will be represented as newname in the hg tags;
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the other tag will not be reflected in the hg repository.
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'''
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def __init__(self, ui, path):
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self.ui = ui
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self.path = path
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self.super = super(TagMap, self)
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self.super.__init__()
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self.load(path)
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def load(self, path):
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'''Load mappings from a file at the specified path.'''
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if not os.path.exists(path):
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return
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writing = False
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if path != self.path:
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writing = open(self.path, 'a')
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self.ui.debug('reading tag renames from %s\n' % path)
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f = open(path, 'r')
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for number, line in enumerate(f):
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if writing:
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writing.write(line)
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line = line.split('#')[0]
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if not line.strip():
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continue
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try:
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src, dst = line.split('=', 1)
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except (IndexError, ValueError):
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msg = 'ignoring line %i in tag renames %s: %s\n'
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self.ui.status(msg % (number, path, line.rstrip()))
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continue
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src = src.strip()
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dst = dst.strip()
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self.ui.debug('adding tag %s to tag renames\n' % src)
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if src in self and dst != self[src]:
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msg = 'overriding tag rename: "%s" to "%s" (%s)\n'
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self.ui.status(msg % (self[src], dst, src))
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self[src] = dst
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f.close()
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if writing:
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writing.close()
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