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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# vcs - a python module to handle various version control systems
# Copyright 2011, 2012 Abdó Roig-Maranges <abdo.roig@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import re
import shutil
from datetime import datetime
try:
from configparser import RawConfigParser
except ImportError:
from ConfigParser import RawConfigParser
from .vcs import Vcs, VcsError
class Hg(Vcs):
vcsname = 'hg'
HEAD = 'tip'
# Auxiliar stuff
#---------------------------
def _hg(self, path, args, silent=True, catchout=False, bytes=False):
return self._vcs(path, 'hg', args, silent=silent, catchout=catchout, bytes=bytes)
def _has_head(self):
"""Checks whether repo has head"""
rnum = self._hg(self.path, ['-q', 'identify', '--num', '-r', self.HEAD], catchout=True)
return rnum != '-1'
def _sanitize_rev(self, rev):
if rev == None: return None
rev = rev.strip()
if len(rev) == 0: return None
if rev[-1] == '+': rev = rev[:-1]
try:
if int(rev) == 0: return None
except:
pass
return rev
def _log(self, refspec=None, maxres=None, filelist=None):
fmt = "changeset: {rev}:{node}\ntag: {tags}\nuser: {author}\ndate: {date}\nsummary: {desc}\n"
args = ['log', '--template', fmt]
if refspec: args = args + ['--limit', '1', '-r', refspec]
elif maxres: args = args + ['--limit', str(maxres)]
if filelist: args = args + filelist
raw = self._hg(self.path, args, catchout=True)
L = re.findall('^changeset:\s*([0-9]*):([0-9a-zA-Z]*)\s*$\s*^tag:\s*(.*)\s*$\s*^user:\s*(.*)\s*$\s*^date:\s*(.*)$\s*^summary:\s*(.*)\s*$', raw, re.MULTILINE)
log = []
for t in L:
dt = {}
dt['short'] = t[0].strip()
dt['revid'] = self._sanitize_rev(t[1].strip())
dt['author'] = t[3].strip()
m = re.match('\d+(\.\d+)?', t[4].strip())
dt['date'] = datetime.fromtimestamp(float(m.group(0)))
dt['summary'] = t[5].strip()
log.append(dt)
return log
def _hg_file_status(self, st):
if len(st) != 1: raise VcsError("Wrong hg file status string: %s" % st)
if st in "ARM": return 'staged'
elif st in "!": return 'deleted'
elif st in "I": return 'ignored'
elif st in "?": return 'untracked'
elif st in "X": return 'conflict'
elif st in "C": return 'sync'
else: return 'unknown'
# Repo creation
#---------------------------
def init(self):
"""Initializes a repo in current path"""
self._hg(self.path, ['init'])
self.update()
def clone(self, src):
"""Clones a repo from src"""
name = os.path.basename(self.path)
path = os.path.dirname(self.path)
try:
os.rmdir(self.path)
except OSError:
raise VcsError("Can't clone to %s. It is not an empty directory" % self.path)
self._hg(path, ['clone', src, name])
self.update()
# Action Interface
#---------------------------
def commit(self, message):
"""Commits with a given message"""
self._hg(self.path, ['commit', '-m', message])
def add(self, filelist=None):
"""Adds files to the index, preparing for commit"""
if filelist != None: self._hg(self.path, ['addremove'] + filelist)
else: self._hg(self.path, ['addremove'])
def reset(self, filelist=None):
"""Removes files from the index"""
if filelist == None: filelist = self.get_status_allfiles().keys()
self._hg(self.path, ['forget'] + filelist)
def pull(self):
"""Pulls a hg repo"""
self._hg(self.path, ['pull', '-u'])
def push(self):
"""Pushes a hg repo"""
self._hg(self.path, ['push'])
def checkout(self, rev):
"""Checks out a branch or revision"""
self._hg(self.path, ['update', rev])
def extract_file(self, rev, name, dest):
"""Extracts a file from a given revision and stores it in dest dir"""
if rev == self.INDEX:
shutil.copyfile(os.path.join(self.path, name), dest)
else:
self._hg(self.path, ['cat', '--rev', rev, '--output', dest, name])
# Data Interface
#---------------------------
def get_status_allfiles(self):
"""Returns a dict indexed by files not in sync their status as values.
Paths are given relative to the root."""
raw = self._hg(self.path, ['status'], catchout=True, bytes=True)
L = re.findall('^(.)\s*(.*?)\s*$', raw.decode('utf-8'), re.MULTILINE)
ret = {}
for st, p in L:
# Detect conflict by the existence of .orig files
if st == '?' and re.match('^.*\.orig\s*$', p): st = 'X'
sta = self._hg_file_status(st)
ret[p.strip()] = sta
return ret
def get_ignore_allfiles(self):
"""Returns a set of all the ignored files in the repo"""
raw = self._hg(self.path, ['status', '-i'], catchout=True, bytes=True)
L = re.findall('^I\s*(.*?)\s*$', raw.decode('utf-8'), re.MULTILINE)
return set(L)
def get_remote_status(self):
"""Checks the status of the repo regarding sync state with remote branch"""
if self.get_remote() == None:
return "none"
ahead = behind = True
try:
self._hg(self.path, ['outgoing'], silent=True)
except:
ahead = False
try:
self._hg(self.path, ['incoming'], silent=True)
except:
behind = False
if ahead and behind: return "diverged"
elif ahead and not behind: return "ahead"
elif not ahead and behind: return "behind"
elif not ahead and not behind: return "sync"
def get_branch(self):
"""Returns the current named branch, if this makes sense for the backend. None otherwise"""
branch = self._hg(self.path, ['branch'], catchout=True)
return branch or None
def get_log(self, filelist=None, maxres=None):
"""Get the entire log for the current HEAD"""
if not self._has_head(): return []
return self._log(refspec=None, maxres=maxres, filelist=filelist)
def get_raw_log(self, filelist=None):
"""Gets the raw log as a string"""
if not self._has_head(): return []
args = ['log']
if filelist: args = args + filelist
return self._hg(self.path, args, catchout=True)
def get_raw_diff(self, refspec=None, filelist=None):
"""Gets the raw diff as a string"""
args = ['diff', '--git']
if refspec: args = args + [refspec]
if filelist: args = args + filelist
return self._hg(self.path, args, catchout=True)
def get_remote(self, rev=None):
"""Returns the url for the remote repo attached to head"""
remote = self._hg(self.path, ['showconfig', 'paths.default'], catchout=True)
return remote or None
def get_revision_id(self, rev=None):
"""Get a canonical key for the revision rev"""
if rev == None: rev = self.HEAD
elif rev == self.INDEX: return None
rev = self._sanitize_rev(rev)
return self._sanitize_rev(self._hg(self.path, ['-q', 'identify', '--id', '-r', rev], catchout=True))
def get_info(self, rev=None):
"""Gets info about the given revision rev"""
if rev == None: rev = self.HEAD
rev = self._sanitize_rev(rev)
if rev == self.HEAD and not self._has_head(): return None
L = self._log(refspec=rev)
if len(L) == 0:
raise VcsError("Revision %s does not exist" % rev)
elif len(L) > 1:
raise VcsError("More than one instance of revision %s ?!?" % rev)
else:
return L[0]
def get_files(self, rev=None):
"""Gets a list of files in revision rev"""
if rev == None: rev = self.HEAD
rev = self._sanitize_rev(rev)
if rev:
if rev == self.INDEX: raw = self._hg(self.path, ['locate', "*"], catchout=True)
else: raw = self._hg(self.path, ['locate', '--rev', rev, "*"], catchout=True)
return raw.split('\n')
else:
return []
# vim: expandtab:shiftwidth=4:tabstop=4:softtabstop=4:textwidth=80
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