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authorNikita Karetnikov <nikita@karetnikov.org>2013-09-26 02:36:24 +0000
committerNikita Karetnikov <nikita@karetnikov.org>2013-09-26 15:41:43 +0000
commitb7884ca3ca72b39397ff0abd1154f97b981394cd (patch)
treefe101df1dfa3ada15e7c432bbd9b2541161b1b9f /doc/guix.texi
parent64d2e973fb2f22a42c6dec5065070343695e5848 (diff)
downloadguix-b7884ca3ca72b39397ff0abd1154f97b981394cd.tar.gz
guix package: Add '--delete-generations'.
* guix/scripts/package.scm (switch-to-previous-generation): New function.
  (roll-back): Use the new function instead of 'switch-link'.
  (show-help): Add '--delete-generations'.
  (%options): Likewise.
  (guix-package)[process-actions]: Add 'current-generation-number',
  'display-and-delete', and 'delete-generation'.  Add support for
  '--delete-generations', and reindent the code.
* tests/guix-package.sh: Test '--delete-generations'.
* doc/guix.texi (Invoking guix-package): Document '--delete-generations'.
Diffstat (limited to 'doc/guix.texi')
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1 files changed, 10 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 442cef26da..2e6bdc595e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -714,6 +714,16 @@ or months by passing an integer along with the first letter of the
 duration, e.g., @code{--list-generations=20d}.
 @end itemize
 
+@item --delete-generations[=@var{pattern}]
+@itemx -d [@var{pattern}]
+Delete all generations except the current one.  Note that the zeroth
+generation is never deleted.
+
+This command accepts the same patterns as @option{--list-generations}.
+When @var{pattern} is specified, delete the matching generations.  If
+the current generation matches, it is deleted atomically, i.e., by
+switching to the previous available generation.
+
 @end table
 
 @node Packages with Multiple Outputs