diff options
| -rw-r--r-- | doc/guix.texi | 10 | ||||
| -rw-r--r-- | guix/gexp.scm | 35 | ||||
| -rw-r--r-- | tests/gexp.scm | 34 |
3 files changed, 63 insertions, 16 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 7617d7fe16..b765bcd112 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -5150,9 +5150,11 @@ is a list of additional arguments to pass to @code{gexp->derivation}. This is the declarative counterpart of @code{gexp->derivation}. @end deffn -@deffn {Monadic Procedure} gexp->script @var{name} @var{exp} +@deffn {Monadic Procedure} gexp->script @var{name} @var{exp} @ + [#:guile (default-guile)] [#:module-path %load-path] Return an executable script @var{name} that runs @var{exp} using @var{guile}, with @var{exp}'s imported modules in its search path. +Look up @var{exp}'s modules in @var{module-path}. The example below builds a script that simply invokes the @command{ls} command: @@ -5186,11 +5188,13 @@ This is the declarative counterpart of @code{gexp->script}. @end deffn @deffn {Monadic Procedure} gexp->file @var{name} @var{exp} @ - [#:set-load-path? #t] + [#:set-load-path? #t] [#:module-path %load-path] @ + [#:guile (default-guile)] Return a derivation that builds a file @var{name} containing @var{exp}. When @var{set-load-path?} is true, emit code in the resulting file to set @code{%load-path} and @code{%load-compiled-path} to honor -@var{exp}'s imported modules. +@var{exp}'s imported modules. Look up @var{exp}'s modules in +@var{module-path}. The resulting file holds references to all the dependencies of @var{exp} or a subset thereof. diff --git a/guix/gexp.scm b/guix/gexp.scm index 8dea022e04..4a2e5a682e 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org> ;;; ;;; This file is part of GNU Guix. @@ -1116,11 +1116,14 @@ they can refer to each other." (module-ref (resolve-interface '(gnu packages guile)) 'guile-2.2)) -(define (load-path-expression modules) +(define* (load-path-expression modules #:optional (path %load-path)) "Return as a monadic value a gexp that sets '%load-path' and -'%load-compiled-path' to point to MODULES, a list of module names." - (mlet %store-monad ((modules (imported-modules modules)) - (compiled (compiled-modules modules))) +'%load-compiled-path' to point to MODULES, a list of module names. MODULES +are searched for in PATH." + (mlet %store-monad ((modules (imported-modules modules + #:module-path path)) + (compiled (compiled-modules modules + #:module-path path))) (return (gexp (eval-when (expand load eval) (set! %load-path (cons (ungexp modules) %load-path)) @@ -1129,11 +1132,13 @@ they can refer to each other." %load-compiled-path))))))) (define* (gexp->script name exp - #:key (guile (default-guile))) + #:key (guile (default-guile)) + (module-path %load-path)) "Return an executable script NAME that runs EXP using GUILE, with EXP's -imported modules in its search path." +imported modules in its search path. Look up EXP's modules in MODULE-PATH." (mlet %store-monad ((set-load-path - (load-path-expression (gexp-modules exp)))) + (load-path-expression (gexp-modules exp) + module-path))) (gexp->derivation name (gexp (call-with-output-file (ungexp output) @@ -1148,12 +1153,16 @@ imported modules in its search path." (write '(ungexp set-load-path) port) (write '(ungexp exp) port) - (chmod port #o555))))))) + (chmod port #o555)))) + #:module-path module-path))) -(define* (gexp->file name exp #:key (set-load-path? #t)) +(define* (gexp->file name exp #:key + (set-load-path? #t) + (module-path %load-path)) "Return a derivation that builds a file NAME containing EXP. When SET-LOAD-PATH? is true, emit code in the resulting file to set '%load-path' -and '%load-compiled-path' to honor EXP's imported modules." +and '%load-compiled-path' to honor EXP's imported modules. Lookup EXP's +modules in MODULE-PATH." (match (if set-load-path? (gexp-modules exp) '()) (() ;zero modules (gexp->derivation name @@ -1164,13 +1173,15 @@ and '%load-compiled-path' to honor EXP's imported modules." #:local-build? #t #:substitutable? #f)) ((modules ...) - (mlet %store-monad ((set-load-path (load-path-expression modules))) + (mlet %store-monad ((set-load-path (load-path-expression modules + module-path))) (gexp->derivation name (gexp (call-with-output-file (ungexp output) (lambda (port) (write '(ungexp set-load-path) port) (write '(ungexp exp) port)))) + #:module-path module-path #:local-build? #t #:substitutable? #f))))) diff --git a/tests/gexp.scm b/tests/gexp.scm index 5873abdd41..a0198b13a0 100644 --- a/tests/gexp.scm +++ b/tests/gexp.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -25,6 +25,7 @@ #:use-module (guix packages) #:use-module (guix tests) #:use-module ((guix build utils) #:select (with-directory-excursion)) + #:use-module ((guix utils) #:select (call-with-temporary-directory)) #:use-module (gnu packages) #:use-module (gnu packages base) #:use-module (gnu packages bootstrap) @@ -853,6 +854,37 @@ (return (and (zero? (close-pipe pipe)) (= (expt n 2) (string->number str))))))) +(test-assertm "gexp->script #:module-path" + (call-with-temporary-directory + (lambda (directory) + (define str + "Fake (guix base32) module!") + + (mkdir (string-append directory "/guix")) + (call-with-output-file (string-append directory "/guix/base32.scm") + (lambda (port) + (write `(begin (define-module (guix base32)) + (define-public %fake! ,str)) + port))) + + (mlet* %store-monad ((exp -> (with-imported-modules '((guix base32)) + (gexp (begin + (use-modules (guix base32)) + (write (list %load-path + %fake!)))))) + (drv (gexp->script "guile-thing" exp + #:guile %bootstrap-guile + #:module-path (list directory))) + (out -> (derivation->output-path drv)) + (done (built-derivations (list drv)))) + (let* ((pipe (open-input-pipe out)) + (data (read pipe))) + (return (and (zero? (close-pipe pipe)) + (match data + ((load-path str*) + (and (string=? str* str) + (not (member directory load-path)))))))))))) + (test-assertm "program-file" (let* ((n (random (expt 2 50))) (exp (with-imported-modules '((guix build utils)) |