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obitools3/distutils.ext/obidistutils/command/build_scripts.py
2018-10-21 17:35:18 +02:00

105 lines
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Python
Executable File

'''
Created on 20 oct. 2012
@author: coissac
'''
import os.path
from distutils.command.build_scripts import build_scripts as ori_build_scripts
from distutils.util import convert_path
from distutils import log, sysconfig
from distutils.dep_util import newer
from stat import ST_MODE
import re
first_line_re = re.compile('^#!.*python[0-9.]*([ \t].*)?$')
class build_scripts(ori_build_scripts):
def copy_scripts (self):
"""Copy each script listed in 'self.scripts'; if it's marked as a
Python script in the Unix way (first line matches 'first_line_re',
ie. starts with "\#!" and contains "python"), then adjust the first
line to refer to the current Python interpreter as we copy.
"""
self.mkpath(self.build_dir)
rawbuild_dir = os.path.join(os.path.dirname(self.build_dir),'raw_scripts')
self.mkpath(rawbuild_dir)
outfiles = []
for script in self.scripts:
adjust = 0
script = convert_path(script)
outfile = os.path.join(self.build_dir, os.path.splitext(os.path.basename(script))[0])
rawoutfile = os.path.join(rawbuild_dir, os.path.basename(script))
outfiles.append(outfile)
if not self.force and not newer(script, outfile):
log.debug("not copying %s (up-to-date)", script)
continue
# Always open the file but ignore failures in dry-run mode --
# that way, we'll get accurate feedback if we can read the
# script.
try:
f = open(script, "r")
except IOError:
if not self.dry_run:
raise
f = None
else:
first_line = f.readline()
if not first_line:
self.warn("%s is an empty file (skipping)" % script)
continue
match = first_line_re.match(first_line)
if match:
adjust = 1
post_interp = match.group(1) or ''
log.info("Store the raw script %s -> %s", script,rawoutfile)
self.copy_file(script, rawoutfile)
if adjust:
log.info("copying and adjusting %s -> %s", script,
self.build_dir)
if not self.dry_run:
outf = open(outfile, "w")
if not sysconfig.python_build:
outf.write("#!%s%s\n" %
(self.executable,
post_interp))
else:
outf.write("#!%s%s\n" %
(os.path.join(
sysconfig.get_config_var("BINDIR"),
"python%s%s" % (sysconfig.get_config_var("VERSION"),
sysconfig.get_config_var("EXE"))),
post_interp))
outf.writelines(f.readlines())
outf.close()
if f:
f.close()
else:
if f:
f.close()
self.copy_file(script, outfile)
if os.name == 'posix':
for F in outfiles:
if self.dry_run:
log.info("changing mode of %s", F)
else:
oldmode = os.stat(F)[ST_MODE]
oldmode = oldmode & 0o7777
newmode = (oldmode | 0o555) & 0o7777
if newmode != oldmode:
log.info("changing mode of %s from %o to %o",
F, oldmode, newmode)
os.chmod(F, newmode)