bos@44: #!/usr/bin/python
bos@44: 
bos@44: import os, re, sys
bos@44: 
bos@44: count = 0
bos@44: 
bos@44: for line in os.popen('hg export tip'):
bos@44:     # remember the name of the file that this diff affects
bos@44:     m = re.match(r'^--- [^/]/([^\t])', line)
bos@44:     if m: 
bos@44: 	filename = m.group(1)
bos@44: 	continue
bos@44:     # remember the line number
bos@44:     m = re.match(r'^@@ -(\d+),')
bos@44:     if m:
bos@44:         linenum = m.group(1)
bos@44:         continue
bos@44:     linenum += 1
bos@44:     # check for an added line with trailing whitespace
bos@44:     m = re.match(r'^\+.*\s$', line)
bos@44:     if m:
bos@44: 	print >> sys.stderr, ('%s:%d: trailing whitespace introduced' %
bos@44:                               (filename, linenum))
bos@44:         count += 1
bos@44: 
bos@44: if count:
bos@44:     # save the commit message so we don't need to retype it
bos@44:     os.system('hg tip --template "{desc}" > .hg/commit.save')
bos@44:     print >> sys.stderr, 'commit message saved to .hg/commit.save'
bos@44: 
bos@44: sys.exit(count)