diff options
Diffstat (limited to 'guix/scripts/gc.scm')
| -rw-r--r-- | guix/scripts/gc.scm | 71 |
1 files changed, 68 insertions, 3 deletions
diff --git a/guix/scripts/gc.scm b/guix/scripts/gc.scm index 6f37b767ff..9a57e5fd1e 100644 --- a/guix/scripts/gc.scm +++ b/guix/scripts/gc.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -20,7 +20,10 @@ #:use-module (guix ui) #:use-module (guix scripts) #:use-module (guix store) + #:use-module (guix store roots) #:autoload (guix build syscalls) (free-disk-space) + #:autoload (guix profiles) (generation-profile) + #:autoload (guix scripts package) (delete-generations) #:use-module (ice-9 match) #:use-module (ice-9 regex) #:use-module (srfi srfi-1) @@ -47,7 +50,12 @@ Invoke the garbage collector.\n")) (display (G_ " -F, --free-space=FREE attempt to reach FREE available space in the store")) (display (G_ " - -d, --delete attempt to delete PATHS")) + -d, --delete-generations[=PATTERN] + delete profile generations matching PATTERN")) + (display (G_ " + -D, --delete attempt to delete PATHS")) + (display (G_ " + --list-roots list the user's garbage collector roots")) (display (G_ " --optimize optimize the store by deduplicating identical files")) (display (G_ " @@ -95,6 +103,16 @@ Invoke the garbage collector.\n")) lst) '())))) +(define (delete-old-generations store profile pattern) + "Remove the generations of PROFILE that match PATTERN, a duration pattern. +Do nothing if none matches." + (let* ((current (generation-number profile)) + (numbers (matching-generations pattern profile + #:duration-relation >))) + + ;; Make sure we don't inadvertently remove the current generation. + (delete-generations store profile (delv current numbers)))) + (define %options ;; Specification of the command-line options. (list (option '(#\h "help") #f #f @@ -120,10 +138,25 @@ Invoke the garbage collector.\n")) (option '(#\F "free-space") #t #f (lambda (opt name arg result) (alist-cons 'free-space (size->number arg) result))) - (option '(#\d "delete") #f #f + (option '(#\D "delete") #f #f ;used to be '-d' (lower case) (lambda (opt name arg result) (alist-cons 'action 'delete (alist-delete 'action result)))) + (option '(#\d "delete-generations") #f #t + (lambda (opt name arg result) + (if (and arg (store-path? arg)) + (begin + (warning (G_ "'-d' as an alias for '--delete' \ +is deprecated; use '-D'~%")) + `((action . delete) + (argument . ,arg) + (alist-delete 'action result))) + (begin + (when (and arg (not (string->duration arg))) + (leave (G_ "~s does not denote a duration~%") + arg)) + (alist-cons 'delete-generations (or arg "") + result))))) (option '("optimize") #f #f (lambda (opt name arg result) (alist-cons 'action 'optimize @@ -135,6 +168,10 @@ Invoke the garbage collector.\n")) (alist-cons 'verify-options options (alist-delete 'action result)))))) + (option '("list-roots") #f #f + (lambda (opt name arg result) + (alist-cons 'action 'list-roots + (alist-delete 'action result)))) (option '("list-dead") #f #f (lambda (opt name arg result) (alist-cons 'action 'list-dead @@ -205,6 +242,27 @@ Invoke the garbage collector.\n")) (info (G_ "freeing ~h MiBs~%") (/ to-free 1024. 1024.)) (collect-garbage store to-free))))) + (define (delete-generations store pattern) + ;; Delete the generations matching PATTERN of all the user's profiles. + (let ((profiles (delete-duplicates + (filter-map (lambda (root) + (and (or (zero? (getuid)) + (user-owned? root)) + (generation-profile root))) + (gc-roots))))) + (for-each (lambda (profile) + (delete-old-generations store profile pattern)) + profiles))) + + (define (list-roots) + ;; List all the user-owned GC roots. + (let ((roots (filter (if (zero? (getuid)) (const #t) user-owned?) + (gc-roots)))) + (for-each (lambda (root) + (display root) + (newline)) + roots))) + (with-error-handling (let* ((opts (parse-options)) (store (open-connection)) @@ -229,6 +287,10 @@ Invoke the garbage collector.\n")) (assert-no-extra-arguments) (let ((min-freed (assoc-ref opts 'min-freed)) (free-space (assoc-ref opts 'free-space))) + (match (assoc-ref opts 'delete-generations) + (#f #t) + ((? string? pattern) + (delete-generations store pattern))) (cond (free-space (ensure-free-space store free-space)) @@ -238,6 +300,9 @@ Invoke the garbage collector.\n")) (else (let-values (((paths freed) (collect-garbage store))) (info (G_ "freed ~h MiBs~%") (/ freed 1024. 1024.))))))) + ((list-roots) + (assert-no-extra-arguments) + (list-roots)) ((delete) (delete-paths store (map direct-store-path paths))) ((list-references) |