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scripts: system: Move save-load-path-excursion and save-environment-excursion macros to the top. 

* guix/scripts/system.scm (save-load-path-excursion,
save-environment-excursion): Move definitions to the top of the file.
It allows to use them in the whole file.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>
master
Danny Milosavljevic 2017-04-15 13:21:39 +02:00
parent c2e9942b8f
commit 475e2ce211
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GPG Key ID: E71A35542C30BAA5
1 changed files with 27 additions and 27 deletions
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54
guix/scripts/system.scm
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@ -78,6 +78,29 @@
;;; Installation.
;;;
(define-syntax-rule (save-load-path-excursion body ...)
"Save the current values of '%load-path' and '%load-compiled-path', run
BODY..., and restore them."
(let ((path %load-path)
(cpath %load-compiled-path))
(dynamic-wind
(const #t)
(lambda ()
body ...)
(lambda ()
(set! %load-path path)
(set! %load-compiled-path cpath)))))
(define-syntax-rule (save-environment-excursion body ...)
"Save the current environment variables, run BODY..., and restore them."
(let ((env (environ)))
(dynamic-wind
(const #t)
(lambda ()
body ...)
(lambda ()
(environ env)))))
(define topologically-sorted*
(store-lift topologically-sorted))
@ -202,29 +225,6 @@ the ownership of '~a' may be incorrect!~%")
;; The system profile.
(string-append %state-directory "/profiles/system"))
(define-syntax-rule (save-environment-excursion body ...)
"Save the current environment variables, run BODY..., and restore them."
(let ((env (environ)))
(dynamic-wind
(const #t)
(lambda ()
body ...)
(lambda ()
(environ env)))))
(define-syntax-rule (save-load-path-excursion body ...)
"Save the current values of '%load-path' and '%load-compiled-path', run
BODY..., and restore them."
(let ((path %load-path)
(cpath %load-compiled-path))
(dynamic-wind
(const #t)
(lambda ()
body ...)
(lambda ()
(set! %load-path path)
(set! %load-compiled-path cpath)))))
(define-syntax-rule (with-shepherd-error-handling mbody ...)
"Catch and report Shepherd errors that arise when binding MBODY, a monadic
expression in %STORE-MONAD."
@ -622,10 +622,10 @@ output when building a system derivation, such as a disk image."
(operating-system-bootloader os))))
(grub.cfg (if (eq? 'container action)
(return #f)
(operating-system-grub.cfg os
(if (eq? 'init action)
'()
(profile-grub-entries)))))
(operating-system-bootcfg os
(if (eq? 'init action)
'()
(profile-grub-entries)))))
;; For 'init' and 'reconfigure', always build GRUB.CFG, even if
;; --no-grub is passed, because GRUB.CFG because we then use it as a GC