hg.py

   1 # Copyright (c) 2005 Mark Williamson <mark.williamson@cl.cam.ac.uk>
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License version 2 as
   5 # published by the Free Software Foundation.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program; if not, write to the Free Software
  14 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  15
  16 import re
  17
  18 from ctcore import *
  19
  20 def doCommit(keepFiles, filesToCommit, msg):
  21     commitFileNames = []
  22     for f in filesToCommit:
  23         commitFileNames.append(f.dstName)
  24     runProgram(['hg', 'commit', '-A', '-l', '-'] + commitFileNames, msg)
  25
  26
  27 parseDiffRE = re.compile('([AMR?]) (.*)')
  28
  29 def __getPatch(file, otherFile = None):
  30     if file.change == 'M' or file.change == 'R':
  31         return runProgram(['hg', 'diff', file.dstName])
  32     elif file.change == '?':
  33         return runProgram(['diff', '-u', '/dev/null', file.dstName],
  34                           expectedexits=[0,1])
  35
  36 def __parseStatus():
  37     inp = runProgram(['hg', 'status'])
  38     ret = []
  39     try:
  40         recs = inp.split("\n")
  41         recs.pop() # remove last entry (which is '')
  42         it = recs.__iter__()
  43         while True:
  44             rec = it.next()
  45             m = parseDiffRE.match(rec)
  46
  47             if not m:
  48                 print "Unknown output from hg status!: " + rec + "\n"
  49                 continue
  50
  51             f = File()
  52             f.change = m.group(1)
  53             f.srcName = f.dstName = m.group(2)
  54
  55             f.patch = __getPatch(f)
  56
  57             ret.append(f)
  58     except StopIteration:
  59         pass
  60     return ret
  61
  62
  63 # HEAD is src in the returned File objects. That is, srcName is the
  64 # name in HEAD and dstName is the name in the cache.
  65 def getFiles():
  66     files = __parseStatus()
  67     for f in files:
  68         c = f.change
  69         if   c == 'A':
  70             f.text = 'Added file: ' + f.srcName
  71         elif c == '?':
  72             f.text = 'New file: ' + f.srcName
  73         elif c == 'R':
  74             f.text = 'Removed file: ' + f.srcName
  75         else:
  76             f.text = f.srcName
  77
  78     return files
  79
  80 def repoValid():
  81     def basicsFailed(msg):
  82         print "hg status: " + msg
  83         print "Make sure that the current working directory contains a '.hg' directory."
  84         sys.exit(1)
  85
  86     try:
  87         runProgram(['hg', 'status'])
  88     except OSError, e:
  89         basicsFailed(e.strerror)
  90     except ProgramError, e:
  91         basicsFailed(e.error)
  92
  93 def doUpdateCache(file):
  94     return
  95
  96 def discardFile(file):
  97     if file.change == "M":
  98         runProgram(['hg', 'revert', file.dstName])
  99     elif file.change == "?":
 100         runProgram(['rm', '-f', file.dstName])
 101     return
 102
 103 def ignoreFile(file):
 104     hgignore = open('.hgignore', 'a')
 105     print >> hgignore, "^" + re.escape(file.dstName) + "$"
 106     hgignore.close()
 107
 108
 109 # Not yet implemented
 110 def commitIsMerge():
 111     return False
 112
 113 def mergeMessage():
 114     return ''