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"""distutils.command.build_scripts
Implements the Distutils 'build_scripts' command."""
import os, re
from stat import ST_MODE
from distutils import sysconfig
from distutils.core import Command
from distutils.dep_util import newer
from distutils.util import convert_path, Mixin2to3
from distutils import log
import tokenize
# check if Python is called on the first line with this expression
first_line_re = re.compile(b'^#!.*python[0-9.]*([ \t].*)?$')
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"),
('executable=', 'e', "specify final destination interpreter path"),
]
boolean_options = ['force']
def initialize_options(self):
self.build_dir = None
self.scripts = None
self.force = None
self.executable = None
self.outfiles = None
def finalize_options(self):
self.set_undefined_options('build',
('build_scripts', 'build_dir'),
('force', 'force'),
('executable', 'executable'))
self.scripts = self.distribution.scripts
def get_source_files(self):
return self.scripts
def run(self):
if not self.scripts:
return
self.copy_scripts()
def copy_scripts(self):
r"""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)
outfiles = []
updated_files = []
for script in self.scripts:
adjust = False
script = convert_path(script)
outfile = os.path.join(self.build_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, "rb")
except OSError:
if not self.dry_run:
raise
f = None
else:
encoding, lines = tokenize.detect_encoding(f.readline)
f.seek(0)
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 = True
post_interp = match.group(1) or b''
if adjust:
log.info("copying and adjusting %s -> %s", script,
self.build_dir)
updated_files.append(outfile)
if not self.dry_run:
if not sysconfig.python_build:
executable = self.executable
else:
executable = os.path.join(
sysconfig.get_config_var("BINDIR"),
"python%s%s" % (sysconfig.get_config_var("VERSION"),
sysconfig.get_config_var("EXE")))
executable = os.fsencode(executable)
shebang = b"#!" + executable + post_interp + b"\n"
# Python parser starts to read a script using UTF-8 until
# it gets a #coding:xxx cookie. The shebang has to be the
# first line of a file, the #coding:xxx cookie cannot be
# written before. So the shebang has to be decodable from
# UTF-8.
try:
shebang.decode('utf-8')
except UnicodeDecodeError:
raise ValueError(
"The shebang ({!r}) is not decodable "
"from utf-8".format(shebang))
# If the script is encoded to a custom encoding (use a
# #coding:xxx cookie), the shebang has to be decodable from
# the script encoding too.
try:
shebang.decode(encoding)
except UnicodeDecodeError:
raise ValueError(
"The shebang ({!r}) is not decodable "
"from the script encoding ({})"
.format(shebang, encoding))
with open(outfile, "wb") as outf:
outf.write(shebang)
outf.writelines(f.readlines())
if f:
f.close()
else:
if f:
f.close()
updated_files.append(outfile)
self.copy_file(script, outfile)
if os.name == 'posix':
for file in outfiles:
if self.dry_run:
log.info("changing mode of %s", file)
else:
oldmode = os.stat(file)[ST_MODE] & 0o7777
newmode = (oldmode | 0o555) & 0o7777
if newmode != oldmode:
log.info("changing mode of %s from %o to %o",
file, oldmode, newmode)
os.chmod(file, newmode)
# XXX should we modify self.outfiles?
return outfiles, updated_files
class build_scripts_2to3(build_scripts, Mixin2to3):
def copy_scripts(self):
outfiles, updated_files = build_scripts.copy_scripts(self)
if not self.dry_run:
self.run_2to3(updated_files)
return outfiles, updated_files
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| __pycache__ | Folder | 0755 |
|
|
| __init__.py | File | 771 B | 0644 |
|
| bdist.py | File | 5.31 KB | 0644 |
|
| bdist_dumb.py | File | 4.8 KB | 0644 |
|
| bdist_msi.py | File | 34.69 KB | 0644 |
|
| bdist_rpm.py | File | 21.03 KB | 0644 |
|
| build.py | File | 5.63 KB | 0644 |
|
| build_clib.py | File | 7.83 KB | 0644 |
|
| build_ext.py | File | 30.91 KB | 0644 |
|
| build_py.py | File | 16.79 KB | 0644 |
|
| build_scripts.py | File | 6.09 KB | 0644 |
|
| check.py | File | 5.5 KB | 0644 |
|
| clean.py | File | 2.71 KB | 0644 |
|
| command_template | File | 633 B | 0644 |
|
| config.py | File | 12.81 KB | 0644 |
|
| install.py | File | 30.08 KB | 0644 |
|
| install_data.py | File | 2.76 KB | 0644 |
|
| install_egg_info.py | File | 3.44 KB | 0644 |
|
| install_headers.py | File | 1.27 KB | 0644 |
|
| install_lib.py | File | 8.42 KB | 0644 |
|
| install_scripts.py | File | 1.97 KB | 0644 |
|
| register.py | File | 11.44 KB | 0644 |
|
| sdist.py | File | 18.56 KB | 0644 |
|
| upload.py | File | 7.44 KB | 0644 |
|