ref: 844bbecadb3a4263a183ce03021849ac41cbd20f
dir: /sys/lib/python/hgext/convert/monotone.py/
# monotone.py - monotone support for the convert extension
#
# Copyright 2008, 2009 Mikkel Fahnoe Jorgensen <[email protected]> and
# others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
import os, re
from mercurial import util
from common import NoRepo, commit, converter_source, checktool
from common import commandline
from mercurial.i18n import _
class monotone_source(converter_source, commandline):
def __init__(self, ui, path=None, rev=None):
converter_source.__init__(self, ui, path, rev)
commandline.__init__(self, ui, 'mtn')
self.ui = ui
self.path = path
norepo = NoRepo (_("%s does not look like a monotone repo") % path)
if not os.path.exists(os.path.join(path, '_MTN')):
# Could be a monotone repository (SQLite db file)
try:
header = file(path, 'rb').read(16)
except:
header = ''
if header != 'SQLite format 3\x00':
raise norepo
# regular expressions for parsing monotone output
space = r'\s*'
name = r'\s+"((?:\\"|[^"])*)"\s*'
value = name
revision = r'\s+\[(\w+)\]\s*'
lines = r'(?:.|\n)+'
self.dir_re = re.compile(space + "dir" + name)
self.file_re = re.compile(space + "file" + name + "content" + revision)
self.add_file_re = re.compile(space + "add_file" + name + "content" + revision)
self.patch_re = re.compile(space + "patch" + name + "from" + revision + "to" + revision)
self.rename_re = re.compile(space + "rename" + name + "to" + name)
self.delete_re = re.compile(space + "delete" + name)
self.tag_re = re.compile(space + "tag" + name + "revision" + revision)
self.cert_re = re.compile(lines + space + "name" + name + "value" + value)
attr = space + "file" + lines + space + "attr" + space
self.attr_execute_re = re.compile(attr + '"mtn:execute"' + space + '"true"')
# cached data
self.manifest_rev = None
self.manifest = None
self.files = None
self.dirs = None
checktool('mtn', abort=False)
# test if there are any revisions
self.rev = None
try:
self.getheads()
except:
raise norepo
self.rev = rev
def mtnrun(self, *args, **kwargs):
kwargs['d'] = self.path
return self.run0('automate', *args, **kwargs)
def mtnloadmanifest(self, rev):
if self.manifest_rev == rev:
return
self.manifest = self.mtnrun("get_manifest_of", rev).split("\n\n")
self.manifest_rev = rev
self.files = {}
self.dirs = {}
for e in self.manifest:
m = self.file_re.match(e)
if m:
attr = ""
name = m.group(1)
node = m.group(2)
if self.attr_execute_re.match(e):
attr += "x"
self.files[name] = (node, attr)
m = self.dir_re.match(e)
if m:
self.dirs[m.group(1)] = True
def mtnisfile(self, name, rev):
# a non-file could be a directory or a deleted or renamed file
self.mtnloadmanifest(rev)
return name in self.files
def mtnisdir(self, name, rev):
self.mtnloadmanifest(rev)
return name in self.dirs
def mtngetcerts(self, rev):
certs = {"author":"<missing>", "date":"<missing>",
"changelog":"<missing>", "branch":"<missing>"}
cert_list = self.mtnrun("certs", rev).split('\n\n key "')
for e in cert_list:
m = self.cert_re.match(e)
if m:
name, value = m.groups()
value = value.replace(r'\"', '"')
value = value.replace(r'\\', '\\')
certs[name] = value
# Monotone may have subsecond dates: 2005-02-05T09:39:12.364306
# and all times are stored in UTC
certs["date"] = certs["date"].split('.')[0] + " UTC"
return certs
# implement the converter_source interface:
def getheads(self):
if not self.rev:
return self.mtnrun("leaves").splitlines()
else:
return [self.rev]
def getchanges(self, rev):
#revision = self.mtncmd("get_revision %s" % rev).split("\n\n")
revision = self.mtnrun("get_revision", rev).split("\n\n")
files = {}
ignoremove = {}
renameddirs = []
copies = {}
for e in revision:
m = self.add_file_re.match(e)
if m:
files[m.group(1)] = rev
ignoremove[m.group(1)] = rev
m = self.patch_re.match(e)
if m:
files[m.group(1)] = rev
# Delete/rename is handled later when the convert engine
# discovers an IOError exception from getfile,
# but only if we add the "from" file to the list of changes.
m = self.delete_re.match(e)
if m:
files[m.group(1)] = rev
m = self.rename_re.match(e)
if m:
toname = m.group(2)
fromname = m.group(1)
if self.mtnisfile(toname, rev):
ignoremove[toname] = 1
copies[toname] = fromname
files[toname] = rev
files[fromname] = rev
elif self.mtnisdir(toname, rev):
renameddirs.append((fromname, toname))
# Directory renames can be handled only once we have recorded
# all new files
for fromdir, todir in renameddirs:
renamed = {}
for tofile in self.files:
if tofile in ignoremove:
continue
if tofile.startswith(todir + '/'):
renamed[tofile] = fromdir + tofile[len(todir):]
# Avoid chained moves like:
# d1(/a) => d3/d1(/a)
# d2 => d3
ignoremove[tofile] = 1
for tofile, fromfile in renamed.items():
self.ui.debug (_("copying file in renamed directory "
"from '%s' to '%s'")
% (fromfile, tofile), '\n')
files[tofile] = rev
copies[tofile] = fromfile
for fromfile in renamed.values():
files[fromfile] = rev
return (files.items(), copies)
def getmode(self, name, rev):
self.mtnloadmanifest(rev)
node, attr = self.files.get(name, (None, ""))
return attr
def getfile(self, name, rev):
if not self.mtnisfile(name, rev):
raise IOError() # file was deleted or renamed
try:
return self.mtnrun("get_file_of", name, r=rev)
except:
raise IOError() # file was deleted or renamed
def getcommit(self, rev):
certs = self.mtngetcerts(rev)
return commit(
author=certs["author"],
date=util.datestr(util.strdate(certs["date"], "%Y-%m-%dT%H:%M:%S")),
desc=certs["changelog"],
rev=rev,
parents=self.mtnrun("parents", rev).splitlines(),
branch=certs["branch"])
def gettags(self):
tags = {}
for e in self.mtnrun("tags").split("\n\n"):
m = self.tag_re.match(e)
if m:
tags[m.group(1)] = m.group(2)
return tags
def getchangedfiles(self, rev, i):
# This function is only needed to support --filemap
# ... and we don't support that
raise NotImplementedError()