git-get-tar-commit-id - Extract commit ID from an archive created using git-archive
Read a tar archive created by
git archive from the standard input and extract the commit ID stored in it. It reads only the first 1024 bytes of input, thus its runtime is not influenced by the size of the tar archive very much.
If no commit ID is found,
git get-tar-commit-id quietly exists with a return code of 1. This can happen if the archive had not been created using
git archive or if the first parameter of
git archive had been a tree ID instead of a commit ID or tag.
© 2005–2017 Linus Torvalds and others
Licensed under the GNU General Public License version 2.