Open tools to check rev hash

bin/git-revhash

+#!/usr/bin/env bash
+
+# Use
+# git-revhash 'tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904\nparent 22c0fa5195a53f2e733ec75a9b6e9d1624a8b771\nauthor seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\ncommitter seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\n\nmaking dir structure...'  # noqa
+# output: 17a631d474f49bbebfdf3d885dcde470d7faafd7
+
+echo -e $* | git hash-object --stdin -t commit

bin/swh-revhash

+#!/usr/bin/env python3
+
+# Use:
+# swh-revhash 'tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904\nparent 22c0fa5195a53f2e733ec75a9b6e9d1624a8b771\nauthor seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\ncommitter seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\n\nmaking dir structure...\n'  # noqa
+# output: 17a631d474f49bbebfdf3d885dcde470d7faafd7
+
+# To compare with git:
+# echo -e 'tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904\nparent 22c0fa5195a53f2e733ec75a9b6e9d1624a8b771\nauthor seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\ncommitter seanius <seanius@3187e211-bb14-4c82-9596-0b59d67cd7f4> 1138341044 +0000\n\nmaking dir structure...' | git hash-object -t commit --stdin   # noqa
+# output: 17a631d474f49bbebfdf3d885dcde470d7faafd7
+
+
+import sys
+
+from swh.model import identifiers, hashutil
+
+
+def revhash(revision_raw):
+    """Compute the revision hash.
+
+    """
+    if b'\\n' in revision_raw:  # HACK: string have somehow their \n
+                                # expanded to \\n
+        revision_raw = revision_raw.replace(b'\\n', b'\n')
+
+    h = hashutil.hash_git_data(revision_raw, 'commit')
+    return identifiers.identifier_to_str(h)
+
+
+if __name__ == '__main__':
+    revision_raw = sys.argv[1].encode('utf-8')
+    print(revhash(revision_raw))