2 commits

Author	SHA1	Message	Date
Ludovic Courtès	9f05fbb67d	tests: Make ‘guix time-machine’ test effective. ... The test as added in 79ec651a28 had no effect: first because ‘guix time-machine --commit=X’, not followed by a command, does nothing, and second because the “! COMMAND” shell stanza does not have the desired effect (see <https://issues.guix.gnu.org/62406>). This change rewrites the test to make it effective. * tests/guix-time-machine.sh: Rewrite. Change-Id: Ib44a11331c8625e346139a236cffa699cdbd02f2	2023-11-05 23:23:23 +01:00
Maxim Cournoyer	79ec651a28	scripts: time-machine: Error when attempting to visit too old commits. ... * doc/guix.texi (Invoking guix time-machine): Document limitation. * guix/inferior.scm (cached-channel-instance): New VALIDATE-CHANNELS argument. Use it to validate channels when there are no cache hit. * guix/scripts/time-machine.scm (%options): Tag the given reference with 'tag-or-commit instead of 'commit. (%oldest-possible-commit): New variable. (guix-time-machine) <validate-guix-channel>: New nested procedure. Pass it to the 'cached-channel-instance' call. * tests/guix-time-machine.sh: New test. * Makefile.am (SH_TESTS): Register it. Suggested-by: Simon Tournier <zimon.toutoune@gmail.com> Reviewed-by: Ludovic Courtès <ludo@gnu.org> Reviewed-by: Simon Tournier <zimon.toutoune@gmail.com>	2023-08-16 21:34:13 -04:00