73b3f941d7
The previous recommendation, running ‘make authenticate’, was insecure because it led users to run code from the very repository they want to authenticate: https://lists.gnu.org/archive/html/guix-devel/2024-04/msg00252.html * Makefile.am (commit_v1_0_0, channel_intro_commit) (channel_intro_signer, GUIX_GIT_KEYRING, authenticate): Remove. * Makefile.am (.git/hooks/%): New target, generalization of previous ‘.git/hooks/pre-push’ target. (nodist_noinst_DATA): Add ‘.git/hooks/post-merge’. * doc/contributing.texi (Building from Git): Suggest ‘guix git authenticate’ instead of ‘make authenticate’. * etc/git/post-merge: New file. * etc/git/pre-push: Run ‘guix git authenticate’ instead of ‘make authenticate’. Reviewed-by: Maxim Cournoyer <maxim.cournoyer@gmail.com> Reported-by: Skyler Ferris <skyvine@protonmail.com> Change-Id: Ia415aa8375013d0dd095e891116f6ce841d93efd
47 lines
1.3 KiB
Bash
Executable file
47 lines
1.3 KiB
Bash
Executable file
#!/bin/sh
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# This hook script prevents the user from pushing to Savannah if any of the new
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# commits' OpenPGP signatures cannot be verified, or if a commit is signed
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# with an unauthorized key.
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# Called by "git push" after it has checked the remote status, but before
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# anything has been pushed. If this script exits with a non-zero status nothing
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# will be pushed.
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#
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# This hook is called with the following parameters:
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#
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# $1 -- Name of the remote to which the push is being done
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# $2 -- URL to which the push is being done
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#
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# If pushing without using a named remote those arguments will be equal.
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#
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# Information about the commits which are being pushed is supplied as lines to
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# the standard input in the form:
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#
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# <local ref> <local sha1> <remote ref> <remote sha1>
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# This is the "empty hash" used by Git when pushing a branch deletion.
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z40=0000000000000000000000000000000000000000
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while read local_ref local_hash remote_ref remote_hash
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do
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# When deleting a remote branch, no commits are pushed to the remote, and
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# thus there are no signatures to be verified.
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if [ "$local_hash" != $z40 ]
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then
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# Only use the hook when pushing to Savannah.
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case "$2" in
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*.gnu.org*)
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set -e
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make check-channel-news
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exec guix git authenticate
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exit 127
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;;
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*)
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exit 0
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;;
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esac
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fi
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done
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exit 0
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