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annotate unixSoft/bin/sednames.py @ 336:ea73ef5dc38c

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emacs: avoid weird package.el breakage with newish packages I've been toting around this package.el from 2009 or so, and something in the package format seems to have changed that broke me. Thanks to some related diagnostics by Lucas, I've grabbed the last package.el that worked with emacs 23 and stashed it here. This seems to work, modulo some things (notably js2-mode and smex) now seem to require emacs 24 if you install them using package.el, so this will end up being brittle on my last couple of emacs23 machines.
author Augie Fackler <raf@durin42.com>
date Thu, 29 May 2014 14:30:42 -0400
parents 91dbdbea15e5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1
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1 #!/usr/bin/env python
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2
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3 from itertools import imap as map
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4 from itertools import izip as zip
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5
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6 import re
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7 whitespace_chars = {
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8 '\a': r'\a',
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9 '\b': r'\b',
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10 '\t': r'\t',
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11 '\n': r'\n',
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12 '\v': r'\v',
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13 '\f': r'\f',
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14 '\r': r'\r',
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15 }
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16 whitespace_chars_exp = re.compile('[' + ''.join(whitespace_chars) + ']')
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17 chars_to_escape = dict(zip(map(chr, xrange(0x00, 0x20)), ('\\' + ch for ch in map(chr, xrange(0x00, 0x20)))))
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18 for ch in '{}' "'" '"' '$*?':
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19 chars_to_escape[ch] = '\\' + ch
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20 for ch in whitespace_chars:
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21 del chars_to_escape[ch] # Let whitespace_chars handle these.
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22 chars_to_escape_exp = re.compile('[][\\' + ''.join(chars_to_escape) + ']')
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23 chars_to_escape['['] = '\['
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24 chars_to_escape[']'] = '\]'
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25 chars_to_escape['\\'] = '\\\\'
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26 minimal_chars_to_escape_exp = re.compile("[\\']")
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27
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28 def quote_argument(arg):
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29 count = 0
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30 match = chars_to_escape_exp.search(arg)
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31 while match:
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32 count += 1
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33 match = chars_to_escape_exp.search(arg, match.end())
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34 else:
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35 del match
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36
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37 if count > 2:
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38 arg = "'" + re.sub(minimal_chars_to_escape_exp, lambda match: '\\' + match.group(0), arg) + "'"
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39 else:
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40 arg = re.sub(chars_to_escape_exp, lambda match: chars_to_escape[match.group(0)], arg)
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41
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42 arg = re.sub(whitespace_chars_exp, lambda match: whitespace_chars[match.group(0)], arg)
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43 return arg
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44
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45 def custom_rename(option, opt_str, value, parser):
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46 for i, arg in enumerate(parser.rargs):
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47 if arg == ';':
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48 break
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49 parser.values.ensure_value('custom_rename', parser.rargs[:i])
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50 del parser.rargs[:i + 1]
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51
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52 import optparse
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53 parser = optparse.OptionParser(description="This program batch-renames files, optionally using a VCS (such as svn, hg, or bzr) or other external program to do the renaming. You specify the rename operations using sed commands, which you specify using the -e option.")
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54 parser.add_option('-e', '--program', action='append', default=[''])
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55 parser.add_option('--vcs', metavar='VCS', help='Version-control system with which to rename files, using <VCS> mv <SRC> <DST>; overridden by --custom-rename')
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56 parser.add_option('--custom-rename', help='Custom command to rename the file (e.g., hg mv); works like find(1) -exec (but with two {}, which are src and dst in that order), or you can use {SRC} and {DST}, or you can omit {...} entirely in which case src and dst will be appended in that order', action='callback', type=None, callback=custom_rename, default=None)
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57 parser.add_option('-q', '--quiet', action='store_true', default=False)
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58 opts, args = parser.parse_args()
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59
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60 try:
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61 custom_rename = opts.custom_rename
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62 except AttributeError:
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63 try:
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64 custom_rename = [opts.vcs, 'mv']
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65 except AttributeError:
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66 custom_rename = None
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67
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68 def prefix_with_dash_e(seq):
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69 for arg in seq:
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70 yield '-e'
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71 yield arg
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72
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73 import subprocess
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74 sed = subprocess.Popen(['sed', '-El'] + list(prefix_with_dash_e(opts.program)), stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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75
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76 import os, sys
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77 for src in args:
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78 sed.stdin.write(src + '\n')
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79 sed.stdin.flush()
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80 dst = sed.stdout.readline().rstrip('\n')
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81 if src == dst:
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82 if not opts.quiet:
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83 print >>sys.stderr, 'sed program did not transform %r - skipping' % (src,)
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84 else:
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85 if custom_rename:
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86 src_and_dst = [src, dst]
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87 rename_cmd = list(custom_rename)
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88 for i, arg in enumerate(rename_cmd):
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89 if arg == '{SRC}':
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90 rename_cmd[i] = src
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91 elif arg == '{DST}':
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92 rename_cmd[i] = dst
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93 elif arg == '{}':
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94 try:
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95 rename_cmd[i] = src_and_dst.pop(0)
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96 except IndexError:
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97 sys.exit('Too many {} arguments in custom rename command %r' % (custom_rename,))
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98 else:
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99 rename_cmd += src_and_dst
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100
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101 if not opts.quiet:
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102 print >>sys.stderr, ' '.join(map(quote_argument, rename_cmd))
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103 subprocess.check_call(rename_cmd)
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104 else:
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105 if not opts.quiet:
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106 print >>sys.stderr, 'Renaming %r to %r' % (src, dst)
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107 os.rename(src, dst)
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108
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109 sed.stdin.close()
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110 sys.exit(sed.wait())