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| author | Ludovic Courtès <ludo@gnu.org> | 2013-01-17 22:20:42 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2013-01-17 22:42:39 +0100 |
| commit | 24e262f086980a13d9d0a27615ed7eaec4aacbff (patch) | |
| tree | 4c519de6a66020766572e3d419cda80290c81634 /doc | |
| parent | 8ca6cc4b451cab4b686d28f8aedef2c39fab6a17 (diff) | |
| download | guix-24e262f086980a13d9d0a27615ed7eaec4aacbff.tar guix-24e262f086980a13d9d0a27615ed7eaec4aacbff.tar.gz | |
guix-package: Add `--roll-back'.
Based on a patch by Nikita Karetnikov <nikita@karetnikov.org>.
* guix-package.in (profile-regexp): New procedure.
(latest-profile-number): Remove `%profile-rx', and use
`profile-regexp' instead.
(profile-number, roll-back): New procedure.
(show-help): Add `--roll-back'.
(%options): Likewise.
(guix-package)[process-actions]: First check whether `roll-back?' is
among OPTS, and call `roll-back' if it is, followed by a recursive
call to `process-actions'. Emit the "nothing to be done" message only
when INSTALL or REMOVE is non-empty.
* tests/guix-package.sh (readlink_base): New function.
Add tests for `--roll-back'.
* doc/guix.texi (Invoking guix-package): Document `--roll-back'.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 27a00a6ed9..a41560e75c 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -490,6 +490,13 @@ Remove @var{package}. @itemx -u @var{regexp} Upgrade all the installed packages matching @var{regexp}. +@item --roll-back +Roll back to the previous @dfn{generation} of the profile---i.e., undo +the last transaction. + +When combined with options such as @code{--install}, roll back occurs +before any other actions. + @item --profile=@var{profile} @itemx -p @var{profile} Use @var{profile} instead of the user's default profile. |