* 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>
		
			
				
	
	
		
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			28 lines
		
	
	
	
		
			954 B
		
	
	
	
		
			Bash
		
	
	
	
	
	
| # GNU Guix --- Functional package management for GNU
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| # Copyright © 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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| #
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| # This file is part of GNU Guix.
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| #
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| # GNU Guix is free software; you can redistribute it and/or modify it
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| # under the terms of the GNU General Public License as published by
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| # the Free Software Foundation; either version 3 of the License, or (at
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| # your option) any later version.
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| #
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| # GNU Guix is distributed in the hope that it will be useful, but
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| # WITHOUT ANY WARRANTY; without even the implied warranty of
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| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| # GNU General Public License for more details.
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| #
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| # You should have received a copy of the GNU General Public License
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| # along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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| 
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| #
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| # Test the 'guix time-machine' command-line utility.
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| #
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| 
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| guix time-machine --version
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| 
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| # Visiting a commit older than v1.0.0 fails.
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| ! guix time-machine --commit=v0.15.0
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| 
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| exit 0
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