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- """distutils.command.build_scripts
-
- Implements the Distutils 'build_scripts' command."""
-
- # created 2000/05/23, Bastian Kleineidam
-
- __revision__ = "$Id: build_scripts.py,v 1.6 2000/09/30 18:27:54 gward Exp $"
-
- import sys, os, re
- from distutils.core import Command
- from distutils.dep_util import newer
-
- # check if Python is called on the first line with this expression
- first_line_re = re.compile(r'^#!.*python(\s+.*)?')
-
- class build_scripts (Command):
-
- description = "\"build\" scripts (copy and fixup #! line)"
-
- user_options = [
- ('build-dir=', 'd', "directory to \"build\" (copy) to"),
- ('force', 'f', "forcibly build everything (ignore file timestamps"),
- ]
-
- boolean_options = ['force']
-
-
- def initialize_options (self):
- self.build_dir = None
- self.scripts = None
- self.force = None
- self.outfiles = None
-
- def finalize_options (self):
- self.set_undefined_options('build',
- ('build_scripts', 'build_dir'),
- ('force', 'force'))
- self.scripts = self.distribution.scripts
-
-
- def run (self):
- if not self.scripts:
- return
- self.copy_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.
- """
- outfiles = []
- self.mkpath(self.build_dir)
- for script in self.scripts:
- adjust = 0
- outfile = os.path.join(self.build_dir, os.path.basename(script))
-
- if not self.force and not newer(script, outfile):
- self.announce("not copying %s (output 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)
-
- if adjust:
- self.announce("copying and adjusting %s -> %s" %
- (script, self.build_dir))
- if not self.dry_run:
- outf = open(outfile, "w")
- outf.write("#!%s%s\n" %
- (os.path.normpath(sys.executable), post_interp))
- outf.writelines(f.readlines())
- outf.close()
- if f:
- f.close()
- else:
- f.close()
- self.copy_file(script, outfile)
-
- # copy_scripts ()
-
- # class build_scripts
-