cpython/Lib/distutils/command/build_scripts.py
Jeremy Hylton cd8a1148e1 Make setup.py less chatty by default.
This is a conservative version of SF patch 504889.  It uses the log
module instead of calling print in various places, and it ignores the
verbose argument passed to many functions and set as an attribute on
some objects.  Instead, it uses the verbosity set on the logger via
the command line.

The log module is now preferred over announce() and warn() methods
that exist only for backwards compatibility.

XXX This checkin changes a lot of modules that have no test suite and
aren't exercised by the Python build process.  It will need
substantial testing.
2002-06-04 20:14:43 +00:00

112 lines
3.6 KiB
Python

"""distutils.command.build_scripts
Implements the Distutils 'build_scripts' command."""
# created 2000/05/23, Bastian Kleineidam
__revision__ = "$Id$"
import sys, os, re
from distutils import sysconfig
from distutils.core import Command
from distutils.dep_util import newer
from distutils.util import convert_path
from distutils import log
# check if Python is called on the first line with this expression
first_line_re = re.compile(r'^#!.*python[0-9.]*(\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.
"""
self.mkpath(self.build_dir)
for script in self.scripts:
adjust = 0
script = convert_path(script)
outfile = os.path.join(self.build_dir, os.path.basename(script))
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 ''
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" %
(os.path.normpath(sys.executable),
post_interp))
else:
outf.write("#!%s%s" %
(os.path.join(
sysconfig.get_config_var("BINDIR"),
"python" + sysconfig.get_config_var("EXE")),
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