Mercurial > cpython-lru_cache-weakref

annotate Lib/distutils/command/build_scripts.py @ 25135:0f0016632be4 legacy-trunk

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_formatparam(), set_param(): RFC 2231 encoding support by Oleg Broytmann in SF patch #600096. Specifically, the former function now encodes the triplets, while the latter adds optional charset and language arguments.
author Barry Warsaw <barry@python.org>
date Fri, 06 Sep 2002 03:55:04 +0000
parents ca87119255eb
children f465d6692bde
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 """distutils.command.build_scripts
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2
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3 Implements the Distutils 'build_scripts' command."""
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4
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5 # created 2000/05/23, Bastian Kleineidam
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6
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7 __revision__ = "$Id$"
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8
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9 import sys, os, re
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10 from distutils import sysconfig
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11 from distutils.core import Command
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12 from distutils.dep_util import newer
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13 from distutils.util import convert_path
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14 from distutils import log
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15
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16 # check if Python is called on the first line with this expression
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17 first_line_re = re.compile(r'^#!.*python[0-9.]*(\s+.*)?$')
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18
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19 class build_scripts (Command):
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20
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21 description = "\"build\" scripts (copy and fixup #! line)"
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22
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23 user_options = [
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24 ('build-dir=', 'd', "directory to \"build\" (copy) to"),
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25 ('force', 'f', "forcibly build everything (ignore file timestamps"),
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26 ]
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27
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28 boolean_options = ['force']
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31 def initialize_options (self):
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32 self.build_dir = None
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33 self.scripts = None
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34 self.force = None
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35 self.outfiles = None
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36
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37 def finalize_options (self):
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38 self.set_undefined_options('build',
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39 ('build_scripts', 'build_dir'),
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40 ('force', 'force'))
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41 self.scripts = self.distribution.scripts
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42
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43
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44 def run (self):
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45 if not self.scripts:
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46 return
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47 self.copy_scripts()
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48
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49
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50 def copy_scripts (self):
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51 """Copy each script listed in 'self.scripts'; if it's marked as a
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52 Python script in the Unix way (first line matches 'first_line_re',
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53 ie. starts with "\#!" and contains "python"), then adjust the first
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54 line to refer to the current Python interpreter as we copy.
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55 """
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56 self.mkpath(self.build_dir)
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57 for script in self.scripts:
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58 adjust = 0
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59 script = convert_path(script)
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60 outfile = os.path.join(self.build_dir, os.path.basename(script))
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61
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62 if not self.force and not newer(script, outfile):
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63 log.debug("not copying %s (up-to-date)", script)
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64 continue
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65
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66 # Always open the file, but ignore failures in dry-run mode --
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67 # that way, we'll get accurate feedback if we can read the
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68 # script.
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69 try:
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70 f = open(script, "r")
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71 except IOError:
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72 if not self.dry_run:
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73 raise
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74 f = None
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75 else:
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76 first_line = f.readline()
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77 if not first_line:
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78 self.warn("%s is an empty file (skipping)" % script)
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79 continue
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80
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81 match = first_line_re.match(first_line)
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82 if match:
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83 adjust = 1
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84 post_interp = match.group(1) or ''
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85
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86 if adjust:
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87 log.info("copying and adjusting %s -> %s", script,
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88 self.build_dir)
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89 if not self.dry_run:
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90 outf = open(outfile, "w")
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91 if not sysconfig.python_build:
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92 outf.write("#!%s%s\n" %
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93 (os.path.normpath(sys.executable),
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94 post_interp))
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95 else:
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96 outf.write("#!%s%s" %
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97 (os.path.join(
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98 sysconfig.get_config_var("BINDIR"),
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99 "python" + sysconfig.get_config_var("EXE")),
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100 post_interp))
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101 outf.writelines(f.readlines())
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102 outf.close()
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103 if f:
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104 f.close()
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105 else:
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106 f.close()
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107 self.copy_file(script, outfile)
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108
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109 # copy_scripts ()
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110
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111 # class build_scripts