#!/bin/sh

# This hook script prevents the user from pushing to Savannah if any of the new
# commits' OpenPGP signatures cannot be verified, or if a commit is signed
# with an unauthorized key.

# Called by "git push" after it has checked the remote status, but before
# anything has been pushed.  If this script exits with a non-zero status nothing
# will be pushed.
#
# This hook is called with the following parameters:
#
# $1 -- Name of the remote to which the push is being done
# $2 -- URL to which the push is being done
#
# If pushing without using a named remote those arguments will be equal.
#
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
#   <local ref> <local sha1> <remote ref> <remote sha1>

# This is the "empty hash" used by Git when pushing a branch deletion.
z40=0000000000000000000000000000000000000000

while read local_ref local_hash remote_ref remote_hash
do
	# When deleting a remote branch, no commits are pushed to the remote, and
	# thus there are no signatures to be verified.
	if [ "$local_hash" != $z40 ]
	then
		# Only use the hook when pushing to Savannah.
		case "$2" in
		    *.gnu.org*)
			exec make authenticate check-channel-news
			exit 127
			;;
		    *)
			exit 0
			;;
		esac
	fi
done

exit 0
href='/guix/tree/tests/guix-git-authenticate.sh?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>tree</a><a href='/guix/commit/tests/guix-git-authenticate.sh?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>commit</a><a href='/guix/diff/tests/guix-git-authenticate.sh?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/guix-git-authenticate.sh'>
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<div class='path'>path: <a href='/guix/log/?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>root</a>/<a href='/guix/log/tests?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>tests</a>/<a href='/guix/log/tests/guix-git-authenticate.sh?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d'>guix-git-authenticate.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-git-authenticate.sh?id=2e0eb1c946543be5bdc61c17379e048cade6cb3d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-09-28 21:06:36 -0500'>2020-09-28</span></td><td><a href='/guix/commit/tests/guix-git-authenticate.sh?id=d8934360d2453a403b5433e71d09188e4ed23b57'>tests: Simplify shell exit status negation;</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-lint.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh: Use the shell '!' keyword to negate command exit status
in place of 'if ...; then false; else true; fi'
</span></span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2020-07-11 12:33:01 +0200'>2020-07-11</span></td><td><a href='/guix/commit/tests/guix-git-authenticate.sh?id=a98712785e0b042a290420fd74e5a4a5da4fc68f'>Add 'guix git authenticate'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/git.scm, guix/scripts/git/authenticate.scm,
tests/guix-git-authenticate.sh: New files.
* Makefile.am (MODULES): Add the *.scm files.
(SH_TESTS): Add 'tests/guix-git-authenticate.sh'.
* doc/guix.texi (Channels)[Specifying Channel Authorizations]: Mention
'guix git authenticate'.
(Invoking guix git authenticate): New node.
* po/guix/POTFILES.in: Add 'guix/scripts/git.scm' and
'guix/scripts/git/authenticate.scm'.
</span></span></td><td>Ludovic Courtès</td></tr>