hgbook: examples/hg-interdiff annotate

hgbook

First bit of concepts chapter.

author	Bryan O'Sullivan <bos@serpentine.com>
date	Thu Nov 09 10:11:31 2006 -0800 (2006-11-09)
parents
children	ba2334e2ba9a

rev	line source
bos@106	1 #!/usr/bin/env python
bos@106	2 #
bos@106	3 # Adapter for using interdiff with mercurial's extdiff extension.
bos@106	4 # Copyright 2006 Bryan O'Sullivan <bos@serpentine.com>
bos@106	5
bos@106	6 import os, sys
bos@106	7
bos@106	8 def walk(base):
bos@106	9 # yield all non-directories below the base path.
bos@106	10 for root, dirs, files in os.walk(base):
bos@106	11 for f in files:
bos@106	12 path = os.path.join(root, f)
bos@106	13 yield path[len(base)+1:], path
bos@106	14
bos@106	15 # create list of unique file names under both directories.
bos@106	16 files = dict(walk(sys.argv[1]))
bos@106	17 files.update(walk(sys.argv[2]))
bos@106	18 files = files.keys()
bos@106	19 files.sort()
bos@106	20
bos@106	21 def name(base, f):
bos@106	22 # interdiff requires two files; use /dev/null if one is missing.
bos@106	23 path = os.path.join(base, f)
bos@106	24 if os.path.exists(path):
bos@106	25 return path
bos@106	26 return '/dev/null'
bos@106	27
bos@106	28 ret = 0
bos@106	29
bos@106	30 for f in files:
bos@106	31 if os.system('interdiff "%s" "%s"' % (name(sys.argv[1], f),
bos@106	32 name(sys.argv[2], f))):
bos@106	33 ret = 1
bos@106	34
bos@106	35 sys.exit(ret)