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Diffstat (limited to 'guix')
-rw-r--r--guix/scripts/package.scm28
1 files changed, 14 insertions, 14 deletions
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 5c3947dd63..1393ca3180 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -95,7 +95,7 @@
(make-regexp (string-append "^" (regexp-quote (basename profile))
"-([0-9]+)")))
-(define (profile-numbers profile)
+(define (generation-numbers profile)
"Return the list of generation numbers of PROFILE, or '(0) if no
former profiles were found."
(define* (scandir name #:optional (select? (const #t))
@@ -144,7 +144,7 @@ former profiles were found."
(cute regexp-exec (profile-regexp profile) <>))
profiles))))
-(define (previous-profile-number profile number)
+(define (previous-generation-number profile number)
"Return the number of the generation before generation NUMBER of
PROFILE, or 0 if none exists. It could be NUMBER - 1, but it's not the
case when generations have been deleted (there are \"holes\")."
@@ -153,7 +153,7 @@ case when generations have been deleted (there are \"holes\")."
candidate
highest))
0
- (profile-numbers profile)))
+ (generation-numbers profile)))
(define (profile-derivation store packages)
"Return a derivation that builds a profile (a user environment) with
@@ -205,7 +205,7 @@ all of PACKAGES, a list of name/version/output/path/deps tuples."
packages)
#:modules '((guix build union))))
-(define (profile-number profile)
+(define (generation-number profile)
"Return PROFILE's number or 0. An absolute file name must be used."
(or (and=> (false-if-exception (regexp-exec (profile-regexp profile)
(basename (readlink profile))))
@@ -214,17 +214,17 @@ all of PACKAGES, a list of name/version/output/path/deps tuples."
(define (roll-back profile)
"Roll back to the previous generation of PROFILE."
- (let* ((number (profile-number profile))
- (previous-number (previous-profile-number profile number))
- (previous-profile (format #f "~a-~a-link"
- profile previous-number))
- (manifest (string-append previous-profile "/manifest")))
+ (let* ((number (generation-number profile))
+ (previous-number (previous-generation-number profile number))
+ (previous-generation (format #f "~a-~a-link"
+ profile previous-number))
+ (manifest (string-append previous-generation "/manifest")))
(define (switch-link)
- ;; Atomically switch PROFILE to the previous profile.
+ ;; Atomically switch PROFILE to the previous generation.
(format #t (_ "switching from generation ~a to ~a~%")
number previous-number)
- (switch-symlinks profile previous-profile))
+ (switch-symlinks profile previous-generation))
(cond ((not (file-exists? profile)) ; invalid profile
(leave (_ "profile `~a' does not exist~%")
@@ -233,7 +233,7 @@ all of PACKAGES, a list of name/version/output/path/deps tuples."
(format (current-error-port)
(_ "nothing to do: already at the empty profile~%")))
((or (zero? previous-number) ; going to emptiness
- (not (file-exists? previous-profile)))
+ (not (file-exists? previous-generation)))
(let*-values (((drv-path drv)
(profile-derivation (%store) '()))
((prof)
@@ -242,7 +242,7 @@ all of PACKAGES, a list of name/version/output/path/deps tuples."
(when (not (build-derivations (%store) (list drv-path)))
(leave (_ "failed to build the empty profile~%")))
- (switch-symlinks previous-profile prof)
+ (switch-symlinks previous-generation prof)
(switch-link)))
(else (switch-link))))) ; anything else
@@ -846,7 +846,7 @@ more information.~%"))
(%store) (manifest-packages
(profile-manifest profile))))
(old-prof (derivation-path->output-path old-drv))
- (number (profile-number profile))
+ (number (generation-number profile))
;; Always use NUMBER + 1 for the new profile,
;; possibly overwriting a "previous future