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# common code for the convert extension
import base64
import cPickle as pickle
def encodeargs(args):
def encodearg(s):
lines = base64.encodestring(s)
lines = [l.splitlines()[0] for l in lines]
return ''.join(lines)
s = pickle.dumps(args)
return encodearg(s)
def decodeargs(s):
s = base64.decodestring(s)
return pickle.loads(s)
class NoRepo(Exception): pass
SKIPREV = 'SKIP'
class commit(object):
def __init__(self, author, date, desc, parents, branch=None, rev=None,
extra={}):
self.author = author
self.date = date
self.desc = desc
self.parents = parents
self.branch = branch
self.rev = rev
self.extra = extra
class converter_source(object):
"""Conversion source interface"""
def __init__(self, ui, path, rev=None):
"""Initialize conversion source (or raise NoRepo("message")
exception if path is not a valid repository)"""
self.ui = ui
self.path = path
self.rev = rev
self.encoding = 'utf-8'
def before(self):
pass
def after(self):
pass
def setrevmap(self, revmap, order):
"""set the map of already-converted revisions
order is a list with the keys from revmap in the order they
appear in the revision map file."""
pass
def getheads(self):
"""Return a list of this repository's heads"""
raise NotImplementedError()
def getfile(self, name, rev):
"""Return file contents as a string"""
raise NotImplementedError()
def getmode(self, name, rev):
"""Return file mode, eg. '', 'x', or 'l'"""
raise NotImplementedError()
def getchanges(self, version):
"""Returns a tuple of (files, copies)
Files is a sorted list of (filename, id) tuples for all files changed
in version, where id is the source revision id of the file.
copies is a dictionary of dest: source
"""
raise NotImplementedError()
def getcommit(self, version):
"""Return the commit object for version"""
raise NotImplementedError()
def gettags(self):
"""Return the tags as a dictionary of name: revision"""
raise NotImplementedError()
def recode(self, s, encoding=None):
if not encoding:
encoding = self.encoding or 'utf-8'
if isinstance(s, unicode):
return s.encode("utf-8")
try:
return s.decode(encoding).encode("utf-8")
except:
try:
return s.decode("latin-1").encode("utf-8")
except:
return s.decode(encoding, "replace").encode("utf-8")
def getchangedfiles(self, rev, i):
"""Return the files changed by rev compared to parent[i].
i is an index selecting one of the parents of rev. The return
value should be the list of files that are different in rev and
this parent.
If rev has no parents, i is None.
This function is only needed to support --filemap
"""
raise NotImplementedError()
class converter_sink(object):
"""Conversion sink (target) interface"""
def __init__(self, ui, path):
"""Initialize conversion sink (or raise NoRepo("message")
exception if path is not a valid repository)
created is a list of paths to remove if a fatal error occurs
later"""
self.ui = ui
self.path = path
self.created = []
def getheads(self):
"""Return a list of this repository's heads"""
raise NotImplementedError()
def revmapfile(self):
"""Path to a file that will contain lines
source_rev_id sink_rev_id
mapping equivalent revision identifiers for each system."""
raise NotImplementedError()
def authorfile(self):
"""Path to a file that will contain lines
srcauthor=dstauthor
mapping equivalent authors identifiers for each system."""
return None
def putfile(self, f, e, data):
"""Put file for next putcommit().
f: path to file
e: '', 'x', or 'l' (regular file, executable, or symlink)
data: file contents"""
raise NotImplementedError()
def delfile(self, f):
"""Delete file for next putcommit().
f: path to file"""
raise NotImplementedError()
def putcommit(self, files, parents, commit):
"""Create a revision with all changed files listed in 'files'
and having listed parents. 'commit' is a commit object containing
at a minimum the author, date, and message for this changeset.
Called after putfile() and delfile() calls. Note that the sink
repository is not told to update itself to a particular revision
(or even what that revision would be) before it receives the
file data."""
raise NotImplementedError()
def puttags(self, tags):
"""Put tags into sink.
tags: {tagname: sink_rev_id, ...}"""
raise NotImplementedError()
def setbranch(self, branch, pbranch, parents):
"""Set the current branch name. Called before the first putfile
on the branch.
branch: branch name for subsequent commits
pbranch: branch name of parent commit
parents: destination revisions of parent"""
pass
def setfilemapmode(self, active):
"""Tell the destination that we're using a filemap
Some converter_sources (svn in particular) can claim that a file
was changed in a revision, even if there was no change. This method
tells the destination that we're using a filemap and that it should
filter empty revisions.
"""
pass
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