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ui: Factorize `show-what-to-build'. 

* guix/scripts/package.scm (guix-package)[show-what-to-build]: Move to..
* guix/ui.scm (show-what-to-build): ... here.  Add a `store'
  parameter'.  Adjust callers.
* guix/scripts/build.scm (guix-build): Use it.  Remove `req' and `req*'
  variables.
This commit is contained in:
Ludovic Courtès 2013-02-20 23:41:24 +01:00
parent 7730d112a2
commit 9bb2b96aab
3 changed files with 32 additions and 48 deletions
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23
guix/scripts/build.scm
View File

@ -241,31 +241,12 @@ Build the given PACKAGE-OR-DERIVATION and return their output paths.\n"))
(package-derivation (%store) p sys))))
(_ #f))
opts))
(req (append-map (lambda (drv-path)
(let ((d (call-with-input-file drv-path
read-derivation)))
(derivation-prerequisites-to-build (%store) d)))
drv))
(req* (delete-duplicates
(append (remove (compose (cut valid-path? (%store) <>)
derivation-path->output-path)
drv)
(map derivation-input-path req))))
(roots (filter-map (match-lambda
(('gc-root . root) root)
(_ #f))
opts)))
(if (assoc-ref opts 'dry-run?)
(format (current-error-port)
(N_ "~:[the following derivation would be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations would be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*)
(format (current-error-port)
(N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations will be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*))
(show-what-to-build (%store) drv (assoc-ref opts 'dry-run?))
;; TODO: Add more options.
(set-build-options (%store)

28
guix/scripts/package.scm
View File

@ -380,32 +380,6 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
(let ((out (derivation-path->output-path (%guile-for-build))))
(not (valid-path? (%store) out))))
(define (show-what-to-build drv dry-run?)
;; Show what will/would be built in realizing the derivations listed
;; in DRV.
(let* ((req (append-map (lambda (drv-path)
(let ((d (call-with-input-file drv-path
read-derivation)))
(derivation-prerequisites-to-build
(%store) d)))
drv))
(req* (delete-duplicates
(append (remove (compose (cute valid-path? (%store) <>)
derivation-path->output-path)
drv)
(map derivation-input-path req)))))
(if dry-run?
(format (current-error-port)
(N_ "~:[the following derivation would be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations would be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*)
(format (current-error-port)
(N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations will be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*))))
(define newest-available-packages
(memoize find-newest-available-packages))
@ -589,7 +563,7 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
(when (equal? profile %current-profile)
(ensure-default-profile))
(show-what-to-build drv dry-run?)
(show-what-to-build (%store) drv dry-run?)
(or dry-run?
(and (build-derivations (%store) drv)

29
guix/ui.scm
View File

@ -22,17 +22,20 @@
#:use-module (guix store)
#:use-module (guix config)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module ((guix licenses) #:select (license? license-name))
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:export (_
N_
leave
show-version-and-exit
show-bug-report-information
show-what-to-build
call-with-error-handling
with-error-handling
location->string
@ -112,6 +115,32 @@ General help using GNU software: <http://www.gnu.org/gethelp/>"))
(nix-protocol-error-message c))))
(thunk)))
(define* (show-what-to-build store drv #:optional dry-run?)
"Show what will or would (depending on DRY-RUN?) be built in realizing the
derivations listed in DRV."
(let* ((req (append-map (lambda (drv-path)
(let ((d (call-with-input-file drv-path
read-derivation)))
(derivation-prerequisites-to-build
store d)))
drv))
(req* (delete-duplicates
(append (remove (compose (cute valid-path? store <>)
derivation-path->output-path)
drv)
(map derivation-input-path req)))))
(if dry-run?
(format (current-error-port)
(N_ "~:[the following derivation would be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations would be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*)
(format (current-error-port)
(N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]"
"~:[the following derivations will be built:~%~{ ~a~%~}~;~]"
(length req*))
(null? req*) req*))))
(define-syntax with-error-handling
(syntax-rules ()
"Run BODY within a user-friendly error condition handler."