Added: trunk/Tools/Scripts/download-latest-github-release.py (0 => 220918)
--- trunk/Tools/Scripts/download-latest-github-release.py (rev 0)
+++ trunk/Tools/Scripts/download-latest-github-release.py 2017-08-18 16:08:15 UTC (rev 220918)
@@ -0,0 +1,122 @@
+#! /usr/bin/env python
+#
+# Copyright (C) 2017 Sony Interactive Entertainment Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import argparse
+import json
+import os
+import sys
+import urllib2
+
+PUBLIC_GITHUB_API_ENDPOINT = 'https://api.github.com/'
+
+DESCRIPTION = '''Downloads the latest release binary from a GitHub repository.
+
+Intended for download of vswhere.exe and WinCairoRequirements.zip,
+but may be used for arbitrary binaries / repositories.
+
+Checks whether the latest version already exists in the output directory
+(by looking for a .version file saved alongside the release binary) --
+if so, download is skipped; otherwise any existing version is overwritten.
+'''
+
+
+def parse_args():
+ parser = argparse.ArgumentParser(description=DESCRIPTION, formatter_class=argparse.RawDescriptionHelpFormatter)
+ parser.add_argument('repo', help='GitHub repository slug (e.g., "org/repo")')
+ parser.add_argument('filename', help='filename of release binary to download (e.g., "foo.exe", "bar.zip")')
+ parser.add_argument('-o', '--output-dir', default='.', help='output directory (defaults to working directory)')
+ parser.add_argument('-e', '--endpoint', default=PUBLIC_GITHUB_API_ENDPOINT, help='GitHub API endpoint (defaults to api.github.com)')
+ parser.add_argument('-t', '--token', default=None, help='GitHub API OAuth token (for private repos/endpoints)')
+ return parser.parse_args()
+
+
+def find_latest_release(args):
+ url = ''.format(args.endpoint.rstrip('/'), args.repo)
+
+ request = urllib2.Request(url)
+ request.add_header('Accept', 'application/vnd.github.v3+json')
+ if args.token:
+ request.add_header('Authorization', 'token {}'.format(args.token))
+
+ try:
+ response = urllib2.urlopen(request)
+ except urllib2.HTTPError, error:
+ if error.code == 404:
+ return None, None
+
+ data = ""
+ for asset in data['assets']:
+ if asset['name'] == args.filename:
+ version_info = {'tag_name': data['tag_name'], 'updated_at': asset['updated_at']}
+ return asset['browser_download_url'], version_info
+ return None, None
+
+
+def has_latest_release(version_info_path, version_info):
+ if not os.path.exists(version_info_path):
+ return False
+
+ with open(version_info_path) as file:
+ return json.load(file) == version_info
+
+
+def download_release(source_url, target_path):
+ with open(target_path, 'wb') as file:
+ file.write(urllib2.urlopen(source_url).read())
+
+
+def save_version_info(version_info_path, version_info):
+ with open(version_info_path, 'w') as file:
+ json.dump(version_info, file)
+
+
+def main():
+ args = parse_args()
+
+ print 'Seeking latest release of {} from {}...'.format(args.filename, args.repo)
+ release_url, version_info = find_latest_release(args)
+
+ if not release_url:
+ print 'No release found!'
+ sys.exit(1)
+
+ binary_path = os.path.join(args.output_dir, args.filename)
+ version_info_path = binary_path + '.version'
+
+ if has_latest_release(version_info_path, version_info):
+ print 'Already up-to-date!'
+ sys.exit(0)
+
+ if not os.path.exists(args.output_dir):
+ os.makedirs(args.output_dir)
+
+ print 'Downloading to {}...'.format(os.path.abspath(args.output_dir))
+ download_release(release_url, binary_path)
+ save_version_info(version_info_path, version_info)
+ print 'Done!'
+
+
+if __name__ == '__main__':
+ main()
Property changes on: trunk/Tools/Scripts/download-latest-github-release.py
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