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| author | Ludovic Courtès <ludo@gnu.org> | 2019-11-30 23:19:45 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2019-12-07 00:59:57 +0100 |
| commit | 158032bd7dcc33d17da8091b2319bf59ee9db6a1 (patch) | |
| tree | fdc9f9f8241caceee48683868a0cf3f973123fee | |
| parent | 60f4564a63316c5655cfd1e01ea2ebfdd9cfb9f1 (diff) | |
| download | patches-158032bd7dcc33d17da8091b2319bf59ee9db6a1.tar patches-158032bd7dcc33d17da8091b2319bf59ee9db6a1.tar.gz | |
guix system: Add "describe" action.
* guix/scripts/system.scm (show-help): Add "describe".
(process-command): Handle it.
(guix-system): Likewise.
* doc/guix.texi (Invoking guix system): Document it.
| -rw-r--r-- | doc/guix.texi | 4 | ||||
| -rw-r--r-- | guix/scripts/system.scm | 11 |
2 files changed, 14 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 4c2ecd4b84..84548b1b7d 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -26301,6 +26301,10 @@ bootloader boot menu: @table @code +@item describe +Describe the current system generation: its file name, the kernel and +bootloader used, etc., as well as provenance information when available. + @item list-generations List a summary of each generation of the operating system available on disk, in a human-readable way. This is similar to the diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm index 129c248283..3e9570753d 100644 --- a/guix/scripts/system.scm +++ b/guix/scripts/system.scm @@ -922,6 +922,8 @@ Some ACTIONS support additional ARGS.\n")) (display (G_ "\ roll-back switch to the previous operating system configuration\n")) (display (G_ "\ + describe describe the current system\n")) + (display (G_ "\ list-generations list the system generations\n")) (display (G_ "\ switch-generation switch to an existing operating system configuration\n")) @@ -1196,6 +1198,12 @@ argument list and OPTS is the option alist." ((pattern) pattern) (x (leave (G_ "wrong number of arguments~%")))))) (list-generations pattern))) + ((describe) + (match (generation-number %system-profile) + (0 + (error (G_ "no system generation, nothing to describe~%"))) + (generation + (display-system-generation generation)))) ((search) (apply (resolve-subcommand "search") args)) ;; The following commands need to use the store, but they do not need an @@ -1235,7 +1243,8 @@ argument list and OPTS is the option alist." (case action ((build container vm vm-image disk-image reconfigure init extension-graph shepherd-graph - list-generations delete-generations roll-back + list-generations describe + delete-generations roll-back switch-generation search docker-image) (alist-cons 'action action result)) (else (leave (G_ "~a: unknown action~%") action)))))) |