|
|
# Copyright 2007 Bryan O'Sullivan <bos@serpentine.com>
|
|
|
# Copyright 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
import shlex
|
|
|
from mercurial.i18n import _
|
|
|
from mercurial import util
|
|
|
from common import SKIPREV, converter_source
|
|
|
|
|
|
def rpairs(name):
|
|
|
e = len(name)
|
|
|
while e != -1:
|
|
|
yield name[:e], name[e + 1:]
|
|
|
e = name.rfind('/', 0, e)
|
|
|
yield '.', name
|
|
|
|
|
|
class filemapper(object):
|
|
|
'''Map and filter filenames when importing.
|
|
|
A name can be mapped to itself, a new name, or None (omit from new
|
|
|
repository).'''
|
|
|
|
|
|
def __init__(self, ui, path=None):
|
|
|
self.ui = ui
|
|
|
self.include = {}
|
|
|
self.exclude = {}
|
|
|
self.rename = {}
|
|
|
if path:
|
|
|
if self.parse(path):
|
|
|
raise util.Abort(_('errors in filemap'))
|
|
|
|
|
|
def parse(self, path):
|
|
|
errs = 0
|
|
|
def check(name, mapping, listname):
|
|
|
if name in mapping:
|
|
|
self.ui.warn(_('%s:%d: %r already in %s list\n') %
|
|
|
(lex.infile, lex.lineno, name, listname))
|
|
|
return 1
|
|
|
return 0
|
|
|
lex = shlex.shlex(open(path), path, True)
|
|
|
lex.wordchars += '!@#$%^&*()-=+[]{}|;:,./<>?'
|
|
|
cmd = lex.get_token()
|
|
|
while cmd:
|
|
|
if cmd == 'include':
|
|
|
name = lex.get_token()
|
|
|
errs += check(name, self.exclude, 'exclude')
|
|
|
self.include[name] = name
|
|
|
elif cmd == 'exclude':
|
|
|
name = lex.get_token()
|
|
|
errs += check(name, self.include, 'include')
|
|
|
errs += check(name, self.rename, 'rename')
|
|
|
self.exclude[name] = name
|
|
|
elif cmd == 'rename':
|
|
|
src = lex.get_token()
|
|
|
dest = lex.get_token()
|
|
|
errs += check(src, self.exclude, 'exclude')
|
|
|
self.rename[src] = dest
|
|
|
elif cmd == 'source':
|
|
|
errs += self.parse(lex.get_token())
|
|
|
else:
|
|
|
self.ui.warn(_('%s:%d: unknown directive %r\n') %
|
|
|
(lex.infile, lex.lineno, cmd))
|
|
|
errs += 1
|
|
|
cmd = lex.get_token()
|
|
|
return errs
|
|
|
|
|
|
def lookup(self, name, mapping):
|
|
|
for pre, suf in rpairs(name):
|
|
|
try:
|
|
|
return mapping[pre], pre, suf
|
|
|
except KeyError:
|
|
|
pass
|
|
|
return '', name, ''
|
|
|
|
|
|
def __call__(self, name):
|
|
|
if self.include:
|
|
|
inc = self.lookup(name, self.include)[0]
|
|
|
else:
|
|
|
inc = name
|
|
|
if self.exclude:
|
|
|
exc = self.lookup(name, self.exclude)[0]
|
|
|
else:
|
|
|
exc = ''
|
|
|
if (not self.include and exc) or (len(inc) <= len(exc)):
|
|
|
return None
|
|
|
newpre, pre, suf = self.lookup(name, self.rename)
|
|
|
if newpre:
|
|
|
if newpre == '.':
|
|
|
return suf
|
|
|
if suf:
|
|
|
return newpre + '/' + suf
|
|
|
return newpre
|
|
|
return name
|
|
|
|
|
|
def active(self):
|
|
|
return bool(self.include or self.exclude or self.rename)
|
|
|
|
|
|
# This class does two additional things compared to a regular source:
|
|
|
#
|
|
|
# - Filter and rename files. This is mostly wrapped by the filemapper
|
|
|
# class above. We hide the original filename in the revision that is
|
|
|
# returned by getchanges to be able to find things later in getfile
|
|
|
# and getmode.
|
|
|
#
|
|
|
# - Return only revisions that matter for the files we're interested in.
|
|
|
# This involves rewriting the parents of the original revision to
|
|
|
# create a graph that is restricted to those revisions.
|
|
|
#
|
|
|
# This set of revisions includes not only revisions that directly
|
|
|
# touch files we're interested in, but also merges that merge two
|
|
|
# or more interesting revisions.
|
|
|
|
|
|
class filemap_source(converter_source):
|
|
|
def __init__(self, ui, baseconverter, filemap):
|
|
|
super(filemap_source, self).__init__(ui)
|
|
|
self.base = baseconverter
|
|
|
self.filemapper = filemapper(ui, filemap)
|
|
|
self.commits = {}
|
|
|
# if a revision rev has parent p in the original revision graph, then
|
|
|
# rev will have parent self.parentmap[p] in the restricted graph.
|
|
|
self.parentmap = {}
|
|
|
# self.wantedancestors[rev] is the set of all ancestors of rev that
|
|
|
# are in the restricted graph.
|
|
|
self.wantedancestors = {}
|
|
|
self.convertedorder = None
|
|
|
self._rebuilt = False
|
|
|
self.origparents = {}
|
|
|
self.children = {}
|
|
|
self.seenchildren = {}
|
|
|
|
|
|
def before(self):
|
|
|
self.base.before()
|
|
|
|
|
|
def after(self):
|
|
|
self.base.after()
|
|
|
|
|
|
def setrevmap(self, revmap):
|
|
|
# rebuild our state to make things restartable
|
|
|
#
|
|
|
# To avoid calling getcommit for every revision that has already
|
|
|
# been converted, we rebuild only the parentmap, delaying the
|
|
|
# rebuild of wantedancestors until we need it (i.e. until a
|
|
|
# merge).
|
|
|
#
|
|
|
# We assume the order argument lists the revisions in
|
|
|
# topological order, so that we can infer which revisions were
|
|
|
# wanted by previous runs.
|
|
|
self._rebuilt = not revmap
|
|
|
seen = {SKIPREV: SKIPREV}
|
|
|
dummyset = set()
|
|
|
converted = []
|
|
|
for rev in revmap.order:
|
|
|
mapped = revmap[rev]
|
|
|
wanted = mapped not in seen
|
|
|
if wanted:
|
|
|
seen[mapped] = rev
|
|
|
self.parentmap[rev] = rev
|
|
|
else:
|
|
|
self.parentmap[rev] = seen[mapped]
|
|
|
self.wantedancestors[rev] = dummyset
|
|
|
arg = seen[mapped]
|
|
|
if arg == SKIPREV:
|
|
|
arg = None
|
|
|
converted.append((rev, wanted, arg))
|
|
|
self.convertedorder = converted
|
|
|
return self.base.setrevmap(revmap)
|
|
|
|
|
|
def rebuild(self):
|
|
|
if self._rebuilt:
|
|
|
return True
|
|
|
self._rebuilt = True
|
|
|
self.parentmap.clear()
|
|
|
self.wantedancestors.clear()
|
|
|
self.seenchildren.clear()
|
|
|
for rev, wanted, arg in self.convertedorder:
|
|
|
if rev not in self.origparents:
|
|
|
self.origparents[rev] = self.getcommit(rev).parents
|
|
|
if arg is not None:
|
|
|
self.children[arg] = self.children.get(arg, 0) + 1
|
|
|
|
|
|
for rev, wanted, arg in self.convertedorder:
|
|
|
parents = self.origparents[rev]
|
|
|
if wanted:
|
|
|
self.mark_wanted(rev, parents)
|
|
|
else:
|
|
|
self.mark_not_wanted(rev, arg)
|
|
|
self._discard(arg, *parents)
|
|
|
|
|
|
return True
|
|
|
|
|
|
def getheads(self):
|
|
|
return self.base.getheads()
|
|
|
|
|
|
def getcommit(self, rev):
|
|
|
# We want to save a reference to the commit objects to be able
|
|
|
# to rewrite their parents later on.
|
|
|
c = self.commits[rev] = self.base.getcommit(rev)
|
|
|
for p in c.parents:
|
|
|
self.children[p] = self.children.get(p, 0) + 1
|
|
|
return c
|
|
|
|
|
|
def _discard(self, *revs):
|
|
|
for r in revs:
|
|
|
if r is None:
|
|
|
continue
|
|
|
self.seenchildren[r] = self.seenchildren.get(r, 0) + 1
|
|
|
if self.seenchildren[r] == self.children[r]:
|
|
|
del self.wantedancestors[r]
|
|
|
del self.parentmap[r]
|
|
|
del self.seenchildren[r]
|
|
|
if self._rebuilt:
|
|
|
del self.children[r]
|
|
|
|
|
|
def wanted(self, rev, i):
|
|
|
# Return True if we're directly interested in rev.
|
|
|
#
|
|
|
# i is an index selecting one of the parents of rev (if rev
|
|
|
# has no parents, i is None). getchangedfiles will give us
|
|
|
# the list of files that are different in rev and in the parent
|
|
|
# indicated by i. If we're interested in any of these files,
|
|
|
# we're interested in rev.
|
|
|
try:
|
|
|
files = self.base.getchangedfiles(rev, i)
|
|
|
except NotImplementedError:
|
|
|
raise util.Abort(_("source repository doesn't support --filemap"))
|
|
|
for f in files:
|
|
|
if self.filemapper(f):
|
|
|
return True
|
|
|
return False
|
|
|
|
|
|
def mark_not_wanted(self, rev, p):
|
|
|
# Mark rev as not interesting and update data structures.
|
|
|
|
|
|
if p is None:
|
|
|
# A root revision. Use SKIPREV to indicate that it doesn't
|
|
|
# map to any revision in the restricted graph. Put SKIPREV
|
|
|
# in the set of wanted ancestors to simplify code elsewhere
|
|
|
self.parentmap[rev] = SKIPREV
|
|
|
self.wantedancestors[rev] = set((SKIPREV,))
|
|
|
return
|
|
|
|
|
|
# Reuse the data from our parent.
|
|
|
self.parentmap[rev] = self.parentmap[p]
|
|
|
self.wantedancestors[rev] = self.wantedancestors[p]
|
|
|
|
|
|
def mark_wanted(self, rev, parents):
|
|
|
# Mark rev ss wanted and update data structures.
|
|
|
|
|
|
# rev will be in the restricted graph, so children of rev in
|
|
|
# the original graph should still have rev as a parent in the
|
|
|
# restricted graph.
|
|
|
self.parentmap[rev] = rev
|
|
|
|
|
|
# The set of wanted ancestors of rev is the union of the sets
|
|
|
# of wanted ancestors of its parents. Plus rev itself.
|
|
|
wrev = set()
|
|
|
for p in parents:
|
|
|
wrev.update(self.wantedancestors[p])
|
|
|
wrev.add(rev)
|
|
|
self.wantedancestors[rev] = wrev
|
|
|
|
|
|
def getchanges(self, rev):
|
|
|
parents = self.commits[rev].parents
|
|
|
if len(parents) > 1:
|
|
|
self.rebuild()
|
|
|
|
|
|
# To decide whether we're interested in rev we:
|
|
|
#
|
|
|
# - calculate what parents rev will have if it turns out we're
|
|
|
# interested in it. If it's going to have more than 1 parent,
|
|
|
# we're interested in it.
|
|
|
#
|
|
|
# - otherwise, we'll compare it with the single parent we found.
|
|
|
# If any of the files we're interested in is different in the
|
|
|
# the two revisions, we're interested in rev.
|
|
|
|
|
|
# A parent p is interesting if its mapped version (self.parentmap[p]):
|
|
|
# - is not SKIPREV
|
|
|
# - is still not in the list of parents (we don't want duplicates)
|
|
|
# - is not an ancestor of the mapped versions of the other parents
|
|
|
mparents = []
|
|
|
wp = None
|
|
|
for i, p1 in enumerate(parents):
|
|
|
mp1 = self.parentmap[p1]
|
|
|
if mp1 == SKIPREV or mp1 in mparents:
|
|
|
continue
|
|
|
for p2 in parents:
|
|
|
if p1 == p2 or mp1 == self.parentmap[p2]:
|
|
|
continue
|
|
|
if mp1 in self.wantedancestors[p2]:
|
|
|
break
|
|
|
else:
|
|
|
mparents.append(mp1)
|
|
|
wp = i
|
|
|
|
|
|
if wp is None and parents:
|
|
|
wp = 0
|
|
|
|
|
|
self.origparents[rev] = parents
|
|
|
|
|
|
if len(mparents) < 2 and not self.wanted(rev, wp):
|
|
|
# We don't want this revision.
|
|
|
# Update our state and tell the convert process to map this
|
|
|
# revision to the same revision its parent as mapped to.
|
|
|
p = None
|
|
|
if parents:
|
|
|
p = parents[wp]
|
|
|
self.mark_not_wanted(rev, p)
|
|
|
self.convertedorder.append((rev, False, p))
|
|
|
self._discard(*parents)
|
|
|
return self.parentmap[rev]
|
|
|
|
|
|
# We want this revision.
|
|
|
# Rewrite the parents of the commit object
|
|
|
self.commits[rev].parents = mparents
|
|
|
self.mark_wanted(rev, parents)
|
|
|
self.convertedorder.append((rev, True, None))
|
|
|
self._discard(*parents)
|
|
|
|
|
|
# Get the real changes and do the filtering/mapping.
|
|
|
# To be able to get the files later on in getfile and getmode,
|
|
|
# we hide the original filename in the rev part of the return
|
|
|
# value.
|
|
|
changes, copies = self.base.getchanges(rev)
|
|
|
newnames = {}
|
|
|
files = []
|
|
|
for f, r in changes:
|
|
|
newf = self.filemapper(f)
|
|
|
if newf:
|
|
|
files.append((newf, (f, r)))
|
|
|
newnames[f] = newf
|
|
|
|
|
|
ncopies = {}
|
|
|
for c in copies:
|
|
|
newc = self.filemapper(c)
|
|
|
if newc:
|
|
|
newsource = self.filemapper(copies[c])
|
|
|
if newsource:
|
|
|
ncopies[newc] = newsource
|
|
|
|
|
|
return files, ncopies
|
|
|
|
|
|
def getfile(self, name, rev):
|
|
|
realname, realrev = rev
|
|
|
return self.base.getfile(realname, realrev)
|
|
|
|
|
|
def getmode(self, name, rev):
|
|
|
realname, realrev = rev
|
|
|
return self.base.getmode(realname, realrev)
|
|
|
|
|
|
def gettags(self):
|
|
|
return self.base.gettags()
|
|
|
|
|
|
def hasnativeorder(self):
|
|
|
return self.base.hasnativeorder()
|
|
|
|
|
|
def lookuprev(self, rev):
|
|
|
return self.base.lookuprev(rev)
|
|
|
|
