Lib/lib-old/packmail.py

   1 # Module 'packmail' -- create a self-unpacking shell archive.
   2
   3 # This module works on UNIX and on the Mac; the archives can unpack
   4 # themselves only on UNIX.
   5
   6 import os
   7 from stat import ST_MTIME
   8
   9 # Print help
  10 def help():
  11         print 'All fns have a file open for writing as first parameter'
  12         print 'pack(f, fullname, name): pack fullname as name'
  13         print 'packsome(f, directory, namelist): selected files from directory'
  14         print 'packall(f, directory): pack all files from directory'
  15         print 'packnotolder(f, directory, name): pack all files from directory'
  16         print '                        that are not older than a file there'
  17         print 'packtree(f, directory): pack entire directory tree'
  18
  19 # Pack one file
  20 def pack(outfp, file, name):
  21         fp = open(file, 'r')
  22         outfp.write('echo ' + name + '\n')
  23         outfp.write('sed "s/^X//" >"' + name + '" <<"!"\n')
  24         while 1:
  25                 line = fp.readline()
  26                 if not line: break
  27                 if line[-1:] != '\n':
  28                         line = line + '\n'
  29                 outfp.write('X' + line)
  30         outfp.write('!\n')
  31         fp.close()
  32
  33 # Pack some files from a directory
  34 def packsome(outfp, dirname, names):
  35         for name in names:
  36                 print name
  37                 file = os.path.join(dirname, name)
  38                 pack(outfp, file, name)
  39
  40 # Pack all files from a directory
  41 def packall(outfp, dirname):
  42         names = os.listdir(dirname)
  43         try:
  44             names.remove('.')
  45         except:
  46             pass
  47         try:
  48             names.remove('..')
  49         except:
  50             pass
  51         names.sort()
  52         packsome(outfp, dirname, names)
  53
  54 # Pack all files from a directory that are not older than a give one
  55 def packnotolder(outfp, dirname, oldest):
  56         names = os.listdir(dirname)
  57         try:
  58             names.remove('.')
  59         except:
  60             pass
  61         try:
  62             names.remove('..')
  63         except:
  64             pass
  65         oldest = os.path.join(dirname, oldest)
  66         st = os.stat(oldest)
  67         mtime = st[ST_MTIME]
  68         todo = []
  69         for name in names:
  70                 print name, '...',
  71                 st = os.stat(os.path.join(dirname, name))
  72                 if st[ST_MTIME] >= mtime:
  73                         print 'Yes.'
  74                         todo.append(name)
  75                 else:
  76                         print 'No.'
  77         todo.sort()
  78         packsome(outfp, dirname, todo)
  79
  80 # Pack a whole tree (no exceptions)
  81 def packtree(outfp, dirname):
  82         print 'packtree', dirname
  83         outfp.write('mkdir ' + unixfix(dirname) + '\n')
  84         names = os.listdir(dirname)
  85         try:
  86             names.remove('.')
  87         except:
  88             pass
  89         try:
  90             names.remove('..')
  91         except:
  92             pass
  93         subdirs = []
  94         for name in names:
  95                 fullname = os.path.join(dirname, name)
  96                 if os.path.isdir(fullname):
  97                         subdirs.append(fullname)
  98                 else:
  99                         print 'pack', fullname
 100                         pack(outfp, fullname, unixfix(fullname))
 101         for subdirname in subdirs:
 102                 packtree(outfp, subdirname)
 103
 104 def unixfix(name):
 105         comps = name.split(os.sep)
 106         res = ''
 107         for comp in comps:
 108                 if comp:
 109                         if res: res = res + '/'
 110                         res = res + comp
 111         return res