Mercurial > cpython-lru_cache-weakref

annotate Mac/scripts/unshar.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents b6fadf0231af
children caa6df9e0880
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1795
fa8bbd09f2e6 Updates for THINK C 6.0. Moved the necessary UNIX emulation routines here.
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1 # Extract files from a SHAR archive.
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2 # Run this on the Mac.
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3 # Usage:
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4 # >>> import unshar
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5 # >>> f = open('SHAR')
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6 # >>> unshar.unshar(f)
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7
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8 import string
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9
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10 def unshar(fp, verbose=0, overwrite=0):
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11 ofp = None
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12 file = None
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13 while 1:
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14 line = fp.readline()
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15 if verbose > 3: print 'Got:', `line`
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16 if line[:1] == 'X':
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17 # Most common case first
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18 if ofp: ofp.write(line[1:])
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19 continue
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20 if not line:
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21 if verbose: print 'EOF'
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22 if ofp:
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23 print 'Unterminated file -- closing'
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24 ofp.close()
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25 ofp = None
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26 break
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27 if line[0] == '#':
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28 if verbose: print line,
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29 continue
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30 if line[:14] == 'sed "s/^X//" >':
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31 if verbose: print "!!!", `line`
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32 i = string.find(line, "'")
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33 j = string.find(line, "'", i+1)
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34 if i >= 0 and j > i:
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35 file = line[i+1:j]
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36 if '/' in file:
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37 words = string.splitfields(file, '/')
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38 for funny in '', '.':
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39 while funny in words: words.remove(funny)
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40 for i in range(len(words)):
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41 if words[i] == '..': words[i] = ''
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42 words.insert(0, '')
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43 file = string.joinfields(words, ':')
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44 try:
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45 ofp = open(file, 'r')
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46 ofp.close()
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47 ofp = None
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48 over = 1
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49 except IOError:
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50 over = 0
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51 if over and not overwrite:
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52 print 'Skipping', file, '(already exists) ...'
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53 continue
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54 ofp = open(file, 'w')
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55 if over:
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56 print 'Overwriting', file, '...'
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57 else:
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58 print 'Writing', file, '...'
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59 continue
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60 if line == 'END_OF_FILE\n':
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61 if not file:
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62 print 'Unexpected END_OF_FILE marker'
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63 if ofp:
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64 print 'done'
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65 ofp.close()
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66 ofp = None
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67 else:
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68 print 'done skipping'
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69 file = None
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70 continue
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71 if verbose: print "...", `line`
4813
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72
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73 def main():
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74 import sys
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75 import os
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76 if len(sys.argv) > 1:
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77 for fname in sys.argv[1:]:
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78 fp = open(fname, 'r')
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79 dir, fn = os.path.split(fname)
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80 if dir:
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81 os.chdir(dir)
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82 unshar(fp)
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83 else:
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84 import macfs
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85 fss, ok = macfs.StandardGetFile('TEXT')
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86 if not ok:
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87 sys.exit(0)
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88 fname = fss.as_pathname()
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89 fp = open(fname, 'r')
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90 fss, ok = macfs.GetDirectory('Folder to save files in:')
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91 if not ok:
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92 sys.exit(0)
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93 os.chdir(fss.as_pathname())
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94 unshar(fp)
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95
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96 if __name__ == '__main__':
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97 main()