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[wxWidgets.git] / wxPython / distutils / command / build_scripts.py
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1"""distutils.command.build_scripts
2
3Implements the Distutils 'build_scripts' command."""
4
5# This module should be kept compatible with Python 1.5.2.
6
7__revision__ = "$Id$"
8
9import sys, os, re
10from stat import ST_MODE
11from distutils import sysconfig
12from distutils.core import Command
13from distutils.dep_util import newer
14from distutils.util import convert_path
15from distutils import log
16
17# check if Python is called on the first line with this expression
e55c4dd1 18first_line_re = re.compile('^#!.*python[0-9.]*([ \t].*)?$')
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19
20class build_scripts (Command):
21
22 description = "\"build\" scripts (copy and fixup #! line)"
23
24 user_options = [
25 ('build-dir=', 'd', "directory to \"build\" (copy) to"),
26 ('force', 'f', "forcibly build everything (ignore file timestamps"),
27 ]
28
29 boolean_options = ['force']
30
31
32 def initialize_options (self):
33 self.build_dir = None
34 self.scripts = None
35 self.force = None
36 self.outfiles = None
37
38 def finalize_options (self):
39 self.set_undefined_options('build',
40 ('build_scripts', 'build_dir'),
41 ('force', 'force'))
42 self.scripts = self.distribution.scripts
43
44
45 def run (self):
46 if not self.scripts:
47 return
48 self.copy_scripts()
49
50
51 def copy_scripts (self):
52 """Copy each script listed in 'self.scripts'; if it's marked as a
53 Python script in the Unix way (first line matches 'first_line_re',
54 ie. starts with "\#!" and contains "python"), then adjust the first
55 line to refer to the current Python interpreter as we copy.
56 """
57 self.mkpath(self.build_dir)
58 outfiles = []
59 for script in self.scripts:
60 adjust = 0
61 script = convert_path(script)
62 outfile = os.path.join(self.build_dir, os.path.basename(script))
63 outfiles.append(outfile)
64
65 if not self.force and not newer(script, outfile):
66 log.debug("not copying %s (up-to-date)", script)
67 continue
68
69 # Always open the file, but ignore failures in dry-run mode --
70 # that way, we'll get accurate feedback if we can read the
71 # script.
72 try:
73 f = open(script, "r")
74 except IOError:
75 if not self.dry_run:
76 raise
77 f = None
78 else:
79 first_line = f.readline()
80 if not first_line:
81 self.warn("%s is an empty file (skipping)" % script)
82 continue
83
84 match = first_line_re.match(first_line)
85 if match:
86 adjust = 1
87 post_interp = match.group(1) or ''
88
89 if adjust:
90 log.info("copying and adjusting %s -> %s", script,
91 self.build_dir)
92 if not self.dry_run:
93 outf = open(outfile, "w")
94 if not sysconfig.python_build:
95 outf.write("#!%s%s\n" %
96 (os.path.normpath(sys.executable),
97 post_interp))
98 else:
e55c4dd1 99 outf.write("#!%s%s\n" %
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100 (os.path.join(
101 sysconfig.get_config_var("BINDIR"),
102 "python" + sysconfig.get_config_var("EXE")),
103 post_interp))
104 outf.writelines(f.readlines())
105 outf.close()
106 if f:
107 f.close()
108 else:
109 f.close()
110 self.copy_file(script, outfile)
111
112 if os.name == 'posix':
113 for file in outfiles:
114 if self.dry_run:
115 log.info("changing mode of %s", file)
116 else:
117 oldmode = os.stat(file)[ST_MODE] & 07777
118 newmode = (oldmode | 0555) & 07777
119 if newmode != oldmode:
120 log.info("changing mode of %s from %o to %o",
121 file, oldmode, newmode)
122 os.chmod(file, newmode)
123
124 # copy_scripts ()
125
126# class build_scripts