Tools/scripts/xxci.py

   1 #! /usr/bin/env python
   2
   3 # xxci
   4 #
   5 # check in files for which rcsdiff returns nonzero exit status
   6
   7 import sys
   8 import os
   9 from stat import *
  10 import fnmatch
  11
  12 EXECMAGIC = '\001\140\000\010'
  13
  14 MAXSIZE = 200*1024 # Files this big must be binaries and are skipped.
  15
  16 def getargs():
  17     args = sys.argv[1:]
  18     if args:
  19         return args
  20     print 'No arguments, checking almost *, in "ls -t" order'
  21     list = []
  22     for file in os.listdir(os.curdir):
  23         if not skipfile(file):
  24             list.append((getmtime(file), file))
  25     list.sort()
  26     if not list:
  27         print 'Nothing to do -- exit 1'
  28         sys.exit(1)
  29     list.sort()
  30     list.reverse()
  31     for mtime, file in list: args.append(file)
  32     return args
  33
  34 def getmtime(file):
  35     try:
  36         st = os.stat(file)
  37         return st[ST_MTIME]
  38     except os.error:
  39         return -1
  40
  41 badnames = ['tags', 'TAGS', 'xyzzy', 'nohup.out', 'core']
  42 badprefixes = ['.', ',', '@', '#', 'o.']
  43 badsuffixes = \
  44         ['~', '.a', '.o', '.old', '.bak', '.orig', '.new', '.prev', '.not', \
  45          '.pyc', '.fdc', '.rgb', '.elc', ',v']
  46 ignore = []
  47
  48 def setup():
  49     ignore[:] = badnames
  50     for p in badprefixes:
  51         ignore.append(p + '*')
  52     for p in badsuffixes:
  53         ignore.append('*' + p)
  54     try:
  55         f = open('.xxcign', 'r')
  56     except IOError:
  57         return
  58     ignore[:] = ignore + f.read().split()
  59
  60 def skipfile(file):
  61     for p in ignore:
  62         if fnmatch.fnmatch(file, p): return 1
  63     try:
  64         st = os.lstat(file)
  65     except os.error:
  66         return 1 # Doesn't exist -- skip it
  67     # Skip non-plain files.
  68     if not S_ISREG(st[ST_MODE]): return 1
  69     # Skip huge files -- probably binaries.
  70     if st[ST_SIZE] >= MAXSIZE: return 1
  71     # Skip executables
  72     try:
  73         data = open(file, 'r').read(len(EXECMAGIC))
  74         if data == EXECMAGIC: return 1
  75     except:
  76         pass
  77     return 0
  78
  79 def badprefix(file):
  80     for bad in badprefixes:
  81         if file[:len(bad)] == bad: return 1
  82     return 0
  83
  84 def badsuffix(file):
  85     for bad in badsuffixes:
  86         if file[-len(bad):] == bad: return 1
  87     return 0
  88
  89 def go(args):
  90     for file in args:
  91         print file + ':'
  92         if differing(file):
  93             showdiffs(file)
  94             if askyesno('Check in ' + file + ' ? '):
  95                 sts = os.system('rcs -l ' + file) # ignored
  96                 sts = os.system('ci -l ' + file)
  97
  98 def differing(file):
  99     cmd = 'co -p ' + file + ' 2>/dev/null | cmp -s - ' + file
 100     sts = os.system(cmd)
 101     return sts != 0
 102
 103 def showdiffs(file):
 104     cmd = 'rcsdiff ' + file + ' 2>&1 | ${PAGER-more}'
 105     sts = os.system(cmd)
 106
 107 def askyesno(prompt):
 108     s = raw_input(prompt)
 109     return s in ['y', 'yes']
 110
 111 if __name__ == '__main__':
 112     try:
 113         setup()
 114         go(getargs())
 115     except KeyboardInterrupt:
 116         print '[Intr]'