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# Copyright 2020 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.
# Generates a grit grd file from a list of input manifest files. This is useful
# for preventing the need to list JS files in multiple locations, as files can
# be listed just once in the BUILD.gn file as inputs for a build rule that knows
# how to output such a manifest (e.g. preprocess_grit).
#
# Variables:
# manifest-files:
# List of paths to manifest files. Each must contain a JSON object with
# 2 fields:
# - base_dir, the base directory where the files are located
# - files, a list of file paths from the base directory
#
# out_grd:
# Path where the generated grd file should be written.
#
# grd_prefix:
# Used to generate both grit IDs for included files and names for the
# header/pak/resource map files specified in the <outputs> section of the
# grd file. For example, prefix "foo" will result in a grd file that has
# as output "foo_resources.pak", "grit/foo_resources.h", etc, and has grit
# IDs prefixed by IDS_FOO.
#
# root_gen_dir:
# Path to the root generated directory. Used to compute the relative path
# from the root generated directory for setting file paths, as grd files
# with generated file paths must specify these paths as
# "${root_gen_dir}/<path_to_file>"
import argparse
import json
import os
import sys
_CWD = os.getcwd()
GRD_BEGIN_TEMPLATE = '<?xml version="1.0" encoding="UTF-8"?>\n'\
'<grit latest_public_release="0" current_release="1" '\
'output_all_resource_defines="false">\n'\
' <outputs>\n'\
' <output filename="grit/{prefix}_resources.h" '\
'type="rc_header">\n'\
' <emit emit_type=\'prepend\'></emit>\n'\
' </output>\n'\
' <output filename="grit/{prefix}_resources_map.cc"\n'\
' type="resource_file_map_source" />\n'\
' <output filename="grit/{prefix}_resources_map.h"\n'\
' type="resource_map_header" />\n'\
' <output filename="{prefix}_resources.pak" '\
'type="data_package" />\n'\
' </outputs>\n'\
' <release seq="1">\n'\
' <includes>\n'
GRD_INCLUDE_TEMPLATE = ' <include name="{name}" ' \
'file="${{root_gen_dir}}/{path_from_gen}" ' \
'use_base_dir="false" type="BINDATA" />\n'
GRD_END_TEMPLATE = ' </includes>\n'\
' </release>\n'\
'</grit>\n'
def main(argv):
parser = argparse.ArgumentParser()
parser.add_argument('--manifest-files', required=True, nargs="*")
parser.add_argument('--out-grd', required=True)
parser.add_argument('--grd-prefix', required=True)
parser.add_argument('--root-gen-dir', required=True)
args = parser.parse_args(argv)
grd_file = open(os.path.normpath(os.path.join(_CWD, args.out_grd)), 'w')
grd_file.write(GRD_BEGIN_TEMPLATE.format(prefix=args.grd_prefix))
for manifest_file in args.manifest_files:
manifest_path = os.path.normpath(os.path.join(_CWD, manifest_file))
with open(manifest_path, 'r') as f:
data = json.load(f)
base_dir= os.path.normpath(os.path.join(_CWD, data['base_dir']))
for filename in data['files']:
name_suffix = filename.upper().replace('/', '_').replace('.', '_')
name = 'IDR_%s_%s' % (args.grd_prefix.upper(), name_suffix)
filepath = os.path.join(base_dir, filename).replace('\\', '/')
rebased_path = os.path.relpath(filepath, args.root_gen_dir)
grd_file.write(GRD_INCLUDE_TEMPLATE.format(name=name,
path_from_gen=rebased_path))
grd_file.write(GRD_END_TEMPLATE)
return
if __name__ == '__main__':
main(sys.argv[1:])
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