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from __future__ import absolute_import, unicode_literals
import argparse
import os
import re
import shutil
import subprocess
import sys
import tempfile
OUT_DIR_FLAG_PATTERN = re.compile(r'^(--go(([-_]\w+))*_out=)')
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument('--arcadia-prefix', required=True)
parser.add_argument('--check', nargs='?', default=None)
parser.add_argument('--contrib-prefix', required=True)
parser.add_argument('--namespace', required=True)
parser.add_argument('--proto', required=True)
parser.add_argument('args', nargs='+')
return parser.parse_args()
def move_tree(src_root, dst_root):
for root, _, files in os.walk(src_root):
rel_dir = os.path.relpath(root, src_root)
dst_dir = os.path.join(dst_root, rel_dir)
if not os.path.exists(dst_dir):
os.mkdir(dst_dir)
for file in files:
os.rename(os.path.join(root, file), os.path.join(dst_dir, file))
def main(args):
arcadia_prefix = args.arcadia_prefix
contrib_prefix = args.contrib_prefix
proto_namespace = args.namespace
check_output = args.check
proto_file = args.proto
args = list(args.args)
args.append(proto_file)
out_dir_orig = None
out_dir_temp = None
for i in range(len(args)):
m = re.match(OUT_DIR_FLAG_PATTERN, args[i])
if m:
out_dir_flag = m.group(1)
index = max(len(out_dir_flag), args[i].rfind(':') + 1)
out_dir = args[i][index:]
if out_dir_orig:
assert out_dir_orig == out_dir, 'Output directories do not match: [{}] and [{}]'.format(
out_dir_orig, out_dir
)
else:
out_dir_orig = out_dir
out_dir_temp = tempfile.mkdtemp(dir=out_dir_orig)
args[i] = (args[i][:index] + out_dir_temp).replace('|', ',')
assert out_dir_temp is not None, 'Output directory is not specified'
try:
subprocess.check_output(args, stdin=None, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
sys.stderr.write(
'{} returned non-zero exit code {}.\n{}\n'.format(' '.join(e.cmd), e.returncode, e.output.decode('utf-8'))
)
return e.returncode
# All Arcadia GO projects should have 'a.yandex-team.ru/' namespace prefix.
# If the namespace doesn't start with 'a.yandex-team.ru/' prefix then this
# project is from vendor directory under the root of Arcadia.
out_dir_src = os.path.normpath(os.path.join(out_dir_temp, arcadia_prefix, proto_namespace))
out_dir_dst = out_dir_orig
if not os.path.isdir(out_dir_src):
out_dir_src = out_dir_temp
out_dir_dst = os.path.join(out_dir_orig, contrib_prefix)
move_tree(out_dir_src, out_dir_dst)
if check_output and not os.path.exists(check_output):
package_name = None
option_re = re.compile(r'^\s*option\s+go_package\s*=\s*"([^"]+)"')
with open(proto_file, 'r') as f:
for line in f:
m = re.match(option_re, line)
if m:
package_name = m.group(1).split(';')[-1].split('/')[-1]
break
with open(check_output, 'w') as fout:
fout.write(
'// Code generated by go_proto_wrapper.py script. DO NOT EDIT.\n\npackage {}\n'.format(package_name)
)
shutil.rmtree(out_dir_temp)
return 0
if __name__ == '__main__':
args = parse_args()
sys.exit(main(args))
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