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#!/usr/bin/python
# Copyright (c) 2009 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# action_makenames.py is a harness script to connect actions sections of
# gyp-based builds to make_names.pl.
#
# usage: action_makenames.py OUTPUTS -- INPUTS [-- OPTIONS]
#
# Multiple OUTPUTS, INPUTS, and OPTIONS may be listed. The sections are
# separated by -- arguments.
#
# The directory name of the first output is chosen as the directory in which
# make_names will run. If the directory name for any subsequent output is
# different, those files will be moved to the desired directory.
#
# Multiple INPUTS may be listed. An input with a basename matching
# "make_names.pl" is taken as the path to that script. Inputs with names
# ending in TagNames.in or tags.in are taken as tag inputs. Inputs with names
# ending in AttributeNames.in or attrs.in are taken as attribute inputs. There
# may be at most one tag input and one attribute input. A make_names.pl input
# is required and at least one tag or attribute input must be present.
#
# OPTIONS is a list of additional options to pass to make_names.pl. This
# section need not be present.
import os
import posixpath
import shutil
import subprocess
import sys
def SplitArgsIntoSections(args):
sections = []
while len(args) > 0:
if not '--' in args:
# If there is no '--' left, everything remaining is an entire section.
dashes = len(args)
else:
dashes = args.index('--')
sections.append(args[:dashes])
# Next time through the loop, look at everything after this '--'.
if dashes + 1 == len(args):
# If the '--' is at the end of the list, we won't come back through the
# loop again. Add an empty section now corresponding to the nothingness
# following the final '--'.
args = []
sections.append(args)
else:
args = args[dashes + 1:]
return sections
def main(args):
sections = SplitArgsIntoSections(args[1:])
assert len(sections) == 2 or len(sections) == 3
(outputs, inputs) = sections[:2]
if len(sections) == 3:
options = sections[2]
else:
options = []
# Make all output pathnames absolute so that they can be accessed after
# changing directory.
for index in xrange(0, len(outputs)):
outputs[index] = os.path.abspath(outputs[index])
output_dir = os.path.dirname(outputs[0])
# Look at the inputs and figure out which ones are make_names.pl, tags, and
# attributes. There can be at most one of each, and those are the only
# input types supported. make_names.pl is required and at least one of tags
# and attributes is required.
make_names_input = None
tag_input = None
attr_input = None
for input in inputs:
# Make input pathnames absolute so they can be accessed after changing
# directory. On Windows, convert \ to / for inputs to the perl script to
# work around the intermix of activepython + cygwin perl.
input_abs = os.path.abspath(input)
input_abs_posix = input_abs.replace(os.path.sep, posixpath.sep)
input_basename = os.path.basename(input)
if input_basename == 'make_names.pl':
assert make_names_input == None
make_names_input = input_abs
elif input_basename.endswith('TagNames.in') or \
input_basename.endswith('tags.in'):
assert tag_input == None
tag_input = input_abs_posix
elif input_basename.endswith('AttributeNames.in') or \
input_basename.endswith('attrs.in'):
assert attr_input == None
attr_input = input_abs_posix
else:
assert False
assert make_names_input != None
assert tag_input != None or attr_input != None
# scripts_path is a Perl include directory, located relative to
# make_names_input.
scripts_path = os.path.normpath(
os.path.join(os.path.dirname(make_names_input), os.pardir,
'bindings', 'scripts'))
# Change to the output directory because make_names.pl puts output in its
# working directory.
os.chdir(output_dir)
# Build up the command.
command = ['perl', '-I', scripts_path, make_names_input]
if tag_input != None:
command.extend(['--tags', tag_input])
if attr_input != None:
command.extend(['--attrs', attr_input])
command.extend(options)
# Do it. check_call is new in 2.5, so simulate its behavior with call and
# assert.
return_code = subprocess.call(command)
assert return_code == 0
# Go through the outputs. Any output that belongs in a different directory
# is moved. Do a copy and delete instead of rename for maximum portability.
# Note that all paths used in this section are still absolute.
for output in outputs:
this_output_dir = os.path.dirname(output)
if this_output_dir != output_dir:
output_basename = os.path.basename(output)
src = os.path.join(output_dir, output_basename)
dst = os.path.join(this_output_dir, output_basename)
shutil.copyfile(src, dst)
os.unlink(src)
return return_code
if __name__ == '__main__':
sys.exit(main(sys.argv))
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