metaparse/tools/build_environment.py

135 lines
3.5 KiB
Python
Executable File

#!/usr/bin/python
# Copyright Abel Sinkovics (abel@sinkovics.hu) 2016.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
import os
import subprocess
import json
import argparse
def load_json(filename):
with open(filename, 'r') as f:
return json.load(f)
class ChildProcess:
def __init__(self, cmd, cwd = os.getcwd()):
self.cmd = cmd
self.cwd = cwd
def run(self, cmd):
cmd_string = ' '.join(cmd)
print 'Running {0}'.format(cmd_string)
proc = subprocess.Popen(
self.cmd + cmd,
cwd = self.cwd,
stdout = subprocess.PIPE
)
out = proc.communicate()[0]
if proc.returncode == 0:
return out
else:
raise Exception(
'Command {0} exited with {1}'.format(
cmd_string,
proc.returncode
)
)
def in_dir(self, cwd):
return ChildProcess(self.cmd, cwd)
def in_subdir(self, subdir):
return self.in_dir(os.path.join(self.cwd, subdir))
def head_of_master(submodule, git, ref):
git.run(['fetch'])
return git.run(['show-ref', ref]).split()[0]
def build_environment(submodules_file, out_dir, git, repo, action, ref):
submodules = load_json(submodules_file)
git.run(['clone', repo, out_dir])
git_in_boost = git.in_dir(out_dir)
git_in_boost.run(
['submodule', 'init', '--'] + [k for k in submodules.keys() if k != '']
)
git_in_boost.run(['submodule', 'update'])
if action == 'update':
with open(submodules_file, 'w') as f:
f.write(json.dumps(
dict([
(k, head_of_master(k, git_in_boost.in_subdir(k), ref))
for k, v in submodules.iteritems()
]),
sort_keys=True,
indent=2
))
elif action == 'checkout':
for name, commit in submodules.iteritems():
git_in_boost.in_subdir(name).run(['checkout', commit])
else:
raise Exception('Invalid action {0}'.format(action))
def main():
"""The main function of the utility"""
parser = argparse.ArgumentParser(
description='Manage the build environment of Boost.Metaparse'
)
parser.add_argument(
'--dep_json',
required=True,
help='The json file describing the dependencies'
)
parser.add_argument(
'--git',
required=False,
default='git',
help='The git command to use'
)
parser.add_argument(
'--out',
required=False,
default='boost',
help='The directory to clone into'
)
parser.add_argument(
'--action',
required=True,
choices=['update', 'checkout'],
help='The action to do with the dependencies'
)
parser.add_argument(
'--boost_repository',
required=False,
default='https://github.com/boostorg/boost.git',
help='The Boost repository to clone'
)
parser.add_argument(
'--ref',
required=False,
default='origin/master',
help='The reference to set to in update'
)
args = parser.parse_args()
build_environment(
args.dep_json,
args.out,
ChildProcess([args.git]),
args.boost_repository,
args.action,
args.ref
)
if __name__ == '__main__':
main()