Some fixes for binary releases (#879)

* Create the artifacts before they are packaged (`before_deploy` happens
afterward)
* MacOS doesn't have sha256, so use python

1 files changed, 39 insertions, 0 deletions

diff --git a/scripts/sha256sum.py b/scripts/sha256sum.py
new file mode 100755
index 00000000..ff457d7a
--- /dev/null
+++ b/scripts/sha256sum.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+#
+# Copyright 2018 WebAssembly Community Group participants
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+import argparse
+import hashlib
+import sys
+
+
+def main(args):
+  parser = argparse.ArgumentParser()
+  parser.add_argument('file', nargs='?')
+  options = parser.parse_args(args)
+
+  if options.file is None:
+    parser.error('Expected a file')
+
+  m = hashlib.sha256()
+  with open(options.file, 'rb') as f:
+    m.update(f.read())
+  print('%s  %s' % (m.hexdigest(), options.file))
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))