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Modernize gclient-new-workdir.py by using argparse

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This makes it easier to add options to this script.

There should be no functional changes except for slightly different
text output.

Change-Id: I4d68a8c4aa0c159eae9435fe962e53f6f09d2d47
Reviewed-on: https://chromium-review.googlesource.com/499527
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
This commit is contained in:
Wei-Yin Chen (陳威尹)
2017-05-11 00:07:53 -07:00
committed by Commit Bot
parent 90e958b3b8
commit 052034967a
1 changed files with 25 additions and 44 deletions
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69
gclient-new-workdir.py
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@@ -4,74 +4,55 @@
# found in the LICENSE file.
#
# Usage:
# gclient-new-workdir.py <repository> <new_workdir> [<branch>]
# gclient-new-workdir.py [options] <repository> <new_workdir>
#
import argparse
import os
import shutil
import subprocess
import sys
import textwrap
import git_common
def print_err(msg):
print >> sys.stderr, msg
def usage(msg=None):
if msg is not None:
print_err('\n' + textwrap.dedent(msg) + '\n')
usage_msg = 'Run without arguments to get usage help.'
else:
usage_msg = '''\
usage: %s <repository> <new_workdir>
Clone an existing gclient directory, taking care of all sub-repositories
Works similarly to 'git new-workdir'.
<repository> should contain a .gclient file
<new_workdir> must not exist
'''% os.path.basename(sys.argv[0])
print_err(textwrap.dedent(usage_msg))
sys.exit(1)
def parse_options():
if sys.platform == 'win32':
usage('This script cannot run on Windows because it uses symlinks.')
print('ERROR: This script cannot run on Windows because it uses symlinks.')
sys.exit(1)
if len(sys.argv) != 3:
usage()
parser = argparse.ArgumentParser(description='''\
Clone an existing gclient directory, taking care of all sub-repositories.
Works similarly to 'git new-workdir'.''')
parser.add_argument('repository', type=os.path.abspath,
help='should contain a .gclient file')
parser.add_argument('new_workdir', help='must not exist')
args = parser.parse_args()
repository = os.path.abspath(sys.argv[1])
new_workdir = sys.argv[2]
if not os.path.exists(args.repository):
parser.error('Repository "%s" does not exist.' % args.repository)
if not os.path.exists(repository):
usage('Repository does not exist: ' + repository)
gclient = os.path.join(args.repository, '.gclient')
if not os.path.exists(gclient):
parser.error('No .gclient file at "%s".' % gclient)
if os.path.exists(new_workdir):
usage('New workdir already exists: ' + new_workdir)
if os.path.exists(args.new_workdir):
parser.error('New workdir "%s" already exists.' % args.new_workdir)
return repository, new_workdir
return args
def main():
repository, new_workdir = parse_options()
args = parse_options()
gclient = os.path.join(repository, '.gclient')
if not os.path.exists(gclient):
print_err('No .gclient file: ' + gclient)
gclient = os.path.join(args.repository, '.gclient')
os.makedirs(new_workdir)
os.symlink(gclient, os.path.join(new_workdir, '.gclient'))
os.makedirs(args.new_workdir)
os.symlink(gclient, os.path.join(args.new_workdir, '.gclient'))
for root, dirs, _ in os.walk(repository):
for root, dirs, _ in os.walk(args.repository):
if '.git' in dirs:
workdir = root.replace(repository, new_workdir, 1)
workdir = root.replace(args.repository, args.new_workdir, 1)
print('Creating: %s' % workdir)
git_common.make_workdir(os.path.join(root, '.git'),
os.path.join(workdir, '.git'))