##// END OF EJS Templates
hgweb: removed unnecessary del before function return...
hgweb: removed unnecessary del before function return Deleting tmpl just before the return statement should have no effect since tmpl goes out of scope anyway. But it confuses pyflakes who thinks tmpl is undefined when it is used in the except blocks below.

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gnuarch.py
299 lines | 10.7 KiB | text/x-python | PythonLexer
# GNU Arch support for the convert extension
from common import NoRepo, commandline, commit, converter_source
from mercurial.i18n import _
from mercurial import util
import os, shutil, tempfile, stat
class gnuarch_source(converter_source, commandline):
class gnuarch_rev:
def __init__(self, rev):
self.rev = rev
self.summary = ''
self.date = None
self.author = ''
self.add_files = []
self.mod_files = []
self.del_files = []
self.ren_files = {}
self.ren_dirs = {}
def __init__(self, ui, path, rev=None):
super(gnuarch_source, self).__init__(ui, path, rev=rev)
if not os.path.exists(os.path.join(path, '{arch}')):
raise NoRepo(_("%s does not look like a GNU Arch repo") % path)
# Could use checktool, but we want to check for baz or tla.
self.execmd = None
if util.find_exe('baz'):
self.execmd = 'baz'
else:
if util.find_exe('tla'):
self.execmd = 'tla'
else:
raise util.Abort(_('cannot find a GNU Arch tool'))
commandline.__init__(self, ui, self.execmd)
self.path = os.path.realpath(path)
self.tmppath = None
self.treeversion = None
self.lastrev = None
self.changes = {}
self.parents = {}
self.tags = {}
self.modecache = {}
def before(self):
if self.execmd == 'tla':
output = self.run0('tree-version', self.path)
else:
output = self.run0('tree-version', '-d', self.path)
self.treeversion = output.strip()
self.ui.status(_('analyzing tree version %s...\n') % self.treeversion)
# Get name of temporary directory
version = self.treeversion.split('/')
self.tmppath = os.path.join(tempfile.gettempdir(),
'hg-%s' % version[1])
# Generate parents dictionary
child = []
output, status = self.runlines('revisions', self.treeversion)
self.checkexit(status, 'archive registered?')
for l in output:
rev = l.strip()
self.changes[rev] = self.gnuarch_rev(rev)
# Read author, date and summary
catlog = self.runlines0('cat-log', '-d', self.path, rev)
self._parsecatlog(catlog, rev)
self.parents[rev] = child
child = [rev]
if rev == self.rev:
break
self.parents[None] = child
def after(self):
self.ui.debug(_('cleaning up %s\n') % self.tmppath)
shutil.rmtree(self.tmppath, ignore_errors=True)
def getheads(self):
return self.parents[None]
def getfile(self, name, rev):
if rev != self.lastrev:
raise util.Abort(_('internal calling inconsistency'))
# Raise IOError if necessary (i.e. deleted files).
if not os.path.exists(os.path.join(self.tmppath, name)):
raise IOError
data, mode = self._getfile(name, rev)
self.modecache[(name, rev)] = mode
return data
def getmode(self, name, rev):
return self.modecache[(name, rev)]
def getchanges(self, rev):
self.modecache = {}
self._update(rev)
changes = []
copies = {}
for f in self.changes[rev].add_files:
changes.append((f, rev))
for f in self.changes[rev].mod_files:
changes.append((f, rev))
for f in self.changes[rev].del_files:
changes.append((f, rev))
for src in self.changes[rev].ren_files:
to = self.changes[rev].ren_files[src]
changes.append((src, rev))
changes.append((to, rev))
copies[src] = to
for src in self.changes[rev].ren_dirs:
to = self.changes[rev].ren_dirs[src]
chgs, cps = self._rendirchanges(src, to);
changes += [(f, rev) for f in chgs]
for c in cps:
copies[c] = cps[c]
self.lastrev = rev
return util.sort(changes), copies
def getcommit(self, rev):
changes = self.changes[rev]
return commit(author = changes.author, date = changes.date,
desc = changes.summary, parents = self.parents[rev])
def gettags(self):
return self.tags
def _execute(self, cmd, *args, **kwargs):
cmdline = [self.execmd, cmd]
cmdline += args
cmdline = [util.shellquote(arg) for arg in cmdline]
cmdline += ['>', util.nulldev, '2>', util.nulldev]
cmdline = util.quotecommand(' '.join(cmdline))
self.ui.debug(cmdline, '\n')
return os.system(cmdline)
def _update(self, rev):
if rev == 'base-0':
# Initialise 'base-0' revision
self._obtainrevision(rev)
else:
self.ui.debug(_('applying revision %s...\n') % rev)
revision = '%s--%s' % (self.treeversion, rev)
changeset, status = self.runlines('replay', '-d', self.tmppath,
revision)
if status:
# Something went wrong while merging (baz or tla
# issue?), get latest revision and try from there
shutil.rmtree(self.tmppath, ignore_errors=True)
self._obtainrevision(rev)
else:
old_rev = self.parents[rev][0]
self.ui.debug(_('computing changeset between %s and %s...\n')
% (old_rev, rev))
rev_a = '%s--%s' % (self.treeversion, old_rev)
rev_b = '%s--%s' % (self.treeversion, rev)
self._parsechangeset(changeset, rev)
def _getfile(self, name, rev):
mode = os.lstat(os.path.join(self.tmppath, name)).st_mode
if stat.S_ISLNK(mode):
data = os.readlink(os.path.join(self.tmppath, name))
mode = mode and 'l' or ''
else:
data = open(os.path.join(self.tmppath, name), 'rb').read()
mode = (mode & 0111) and 'x' or ''
return data, mode
def _exclude(self, name):
exclude = [ '{arch}', '.arch-ids', '.arch-inventory' ]
for exc in exclude:
if name.find(exc) != -1:
return True
return False
def _readcontents(self, path):
files = []
contents = os.listdir(path)
while len(contents) > 0:
c = contents.pop()
p = os.path.join(path, c)
# os.walk could be used, but here we avoid internal GNU
# Arch files and directories, thus saving a lot time.
if not self._exclude(p):
if os.path.isdir(p):
contents += [os.path.join(c, f) for f in os.listdir(p)]
else:
files.append(c)
return files
def _rendirchanges(self, src, dest):
changes = []
copies = {}
files = self._readcontents(os.path.join(self.tmppath, dest))
for f in files:
s = os.path.join(src, f)
d = os.path.join(dest, f)
changes.append(s)
changes.append(d)
copies[s] = d
return changes, copies
def _obtainrevision(self, rev):
self.ui.debug(_('obtaining revision %s...\n') % rev)
revision = '%s--%s' % (self.treeversion, rev)
output = self._execute('get', revision, self.tmppath)
self.checkexit(output)
self.ui.debug(_('analysing revision %s...\n') % rev)
files = self._readcontents(self.tmppath)
self.changes[rev].add_files += files
def _stripbasepath(self, path):
if path.startswith('./'):
return path[2:]
return path
def _parsecatlog(self, data, rev):
summary = []
for l in data:
l = l.strip()
if summary:
summary.append(l)
elif l.startswith('Summary:'):
summary.append(l[len('Summary: '):])
elif l.startswith('Standard-date:'):
date = l[len('Standard-date: '):]
strdate = util.strdate(date, '%Y-%m-%d %H:%M:%S')
self.changes[rev].date = util.datestr(strdate)
elif l.startswith('Creator:'):
self.changes[rev].author = l[len('Creator: '):]
self.changes[rev].summary = '\n'.join(summary)
def _parsechangeset(self, data, rev):
for l in data:
l = l.strip()
# Added file (ignore added directory)
if l.startswith('A') and not l.startswith('A/'):
file = self._stripbasepath(l[1:].strip())
if not self._exclude(file):
self.changes[rev].add_files.append(file)
# Deleted file (ignore deleted directory)
elif l.startswith('D') and not l.startswith('D/'):
file = self._stripbasepath(l[1:].strip())
if not self._exclude(file):
self.changes[rev].del_files.append(file)
# Modified binary file
elif l.startswith('Mb'):
file = self._stripbasepath(l[2:].strip())
if not self._exclude(file):
self.changes[rev].mod_files.append(file)
# Modified link
elif l.startswith('M->'):
file = self._stripbasepath(l[3:].strip())
if not self._exclude(file):
self.changes[rev].mod_files.append(file)
# Modified file
elif l.startswith('M'):
file = self._stripbasepath(l[1:].strip())
if not self._exclude(file):
self.changes[rev].mod_files.append(file)
# Renamed file (or link)
elif l.startswith('=>'):
files = l[2:].strip().split(' ')
if len(files) == 1:
files = l[2:].strip().split('\t')
src = self._stripbasepath(files[0])
dst = self._stripbasepath(files[1])
if not self._exclude(src) and not self._exclude(dst):
self.changes[rev].ren_files[src] = dst
# Conversion from file to link or from link to file (modified)
elif l.startswith('ch'):
file = self._stripbasepath(l[2:].strip())
if not self._exclude(file):
self.changes[rev].mod_files.append(file)
# Renamed directory
elif l.startswith('/>'):
dirs = l[2:].strip().split(' ')
if len(dirs) == 1:
dirs = l[2:].strip().split('\t')
src = self._stripbasepath(dirs[0])
dst = self._stripbasepath(dirs[1])
if not self._exclude(src) and not self._exclude(dst):
self.changes[rev].ren_dirs[src] = dst