blob: 175dbf0e120bf55bb0c1804c89c837418e745db5 [file] [log] [blame]
# Copyright 2019 Google Inc.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import argparse
import os
import sys
from io import StringIO
parser = argparse.ArgumentParser()
parser.add_argument('-n', '--dry-run', action='store_true',
help='Just check there is nothing to rewrite.')
parser.add_argument('sources', nargs='*',
help='Source files to rewrite, or all if empty.')
args = parser.parse_args()
roots = [
ignorelist = [
# Don't count our local Vulkan headers as Skia headers;
# we don't want #include <vulkan/vulkan_foo.h> rewritten to point to them.
# Some node_modules/ files (used by CanvasKit et al) have c++ code which we should ignore.
# Temporary (hopefully) shims for Android
assert '/' in [os.sep, os.altsep]
def fix_path(p):
return p.replace(os.sep, os.altsep) if os.altsep else p
# Map short name -> absolute path for all Skia headers.
headers = {}
for root in roots:
for path, _, files in os.walk(root):
if not any(snippet in fix_path(path) for snippet in ignorelist):
for file_name in files:
if file_name.endswith('.h') and not file_name in ignorelist:
if file_name in headers:
message = ('Header filename is used more than once!\n- ' + path + '/' + file_name +
'\n- ' + headers[file_name])
assert file_name not in headers, message
headers[file_name] = os.path.abspath(os.path.join(path, file_name))
def to_rewrite():
if args.sources:
for path in args.sources:
yield path
for root in roots:
for path, _, files in os.walk(root):
for file_name in files:
yield os.path.join(path, file_name)
# Rewrite any #includes relative to Skia's top-level directory.
need_rewriting = []
for file_path in to_rewrite():
if ('/generated/' in file_path or
'tests/sksl/' in file_path or
'third_party/skcms' in file_path or
'modules/skcms' in file_path or
if (file_path.endswith('.h') or
file_path.endswith('.c') or
file_path.endswith('.m') or
file_path.endswith('.mm') or
file_path.endswith('.inc') or
file_path.endswith('.cc') or
# Read the whole file into memory.
lines = open(file_path).readlines()
# Write it back out again line by line with substitutions for #includes.
output = StringIO() if args.dry_run else open(file_path, 'w')
includes = []
for line in lines:
parts = line.replace('<', '"').replace('>', '"').split('"')
if (len(parts) == 3
and '#' in parts[0]
and 'include' in parts[0]
and os.path.basename(parts[1]) in headers):
header = fix_path(os.path.relpath(headers[os.path.basename(parts[1])], '.'))
includes.append(parts[0] + '"%s"' % header + parts[2])
# deduplicate includes in this block. If a file needs to be included
# multiple times, the separate includes should go in different blocks.
includes = sorted(list(set(includes)))
for inc in includes:
output.write(inc.strip('\n') + '\n')
includes = []
output.write(line.strip('\n') + '\n')
# Fix any straggling includes, e.g. in a file that only includes something else.
for inc in sorted(includes):
output.write(inc.strip('\n') + '\n')
if args.dry_run and output.getvalue() != open(file_path).read():
rc = 1
if need_rewriting:
print('Some files need rewritten #includes:')
for path in need_rewriting:
print('\t' + path)
print('To do this automatically, run')
print('python tools/ ' + ' '.join(need_rewriting))