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derivations: Compile the #:modules passed to `build-expression->derivation'.

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* guix/derivations.scm (imported-files)[parent-dirs]: Move to...
  (parent-directories): ... here.  New procedure.
  (compiled-modules): New procedure.
  (build-expression->derivation): Use it.

* tests/derivations.scm ("build-expression->derivation with modules"):
  New test.
This commit is contained in:
Ludovic Courtès 2012-10-22 23:30:35 +02:00
parent d398e2c242
commit d90248844b
2 changed files with 96 additions and 23 deletions
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102
guix/derivations.scm
View file

@ -453,27 +453,27 @@ (define %guile-for-build
;; when using `build-expression->derivation'.
(make-parameter (false-if-exception (nixpkgs-derivation* "guile"))))
(define (parent-directories file-name)
"Return the list of parent dirs of FILE-NAME, in the order in which an
`mkdir -p' implementation would make them."
(let ((not-slash (char-set-complement (char-set #\/))))
(reverse
(fold (lambda (dir result)
(match result
(()
(list dir))
((prev _ ...)
(cons (string-append prev "/" dir)
result))))
'()
(remove (cut string=? <> ".")
(string-tokenize (dirname file-name) not-slash))))))
(define* (imported-files store files
#:key (name "file-import") (system (%current-system)))
"Return a derivation that imports FILES into STORE. FILES must be a list
of (FINAL-PATH . FILE-NAME) pairs; each FILE-NAME is read from the file
system, imported, and appears under FINAL-PATH in the resulting store path."
(define (parent-dirs file-name)
;; Return the list of parent dirs of FILE-NAME, in the order in which an
;; `mkdir -p' implementation would make them.
(let ((not-slash (char-set-complement (char-set #\/))))
(reverse
(fold (lambda (dir result)
(match result
(()
(list dir))
((prev _ ...)
(cons (string-append prev "/" dir)
result))))
'()
(remove (cut string=? <> ".")
(string-tokenize (dirname file-name) not-slash))))))
(let* ((files (map (match-lambda
((final-path . file-name)
(list final-path
@ -485,7 +485,7 @@ (define (parent-dirs file-name)
(mkdir %output) (chdir %output)
,@(append-map (match-lambda
((final-path store-path)
(append (match (parent-dirs final-path)
(append (match (parent-directories final-path)
(() '())
((head ... tail)
(append (map (lambda (d)
@ -515,6 +515,46 @@ (define* (imported-modules store modules
modules)))
(imported-files store files #:name name #:system system)))
(define* (compiled-modules store modules
#:key (name "module-import-compiled")
(system (%current-system)))
"Return a derivation that builds a tree containing the `.go' files
corresponding to MODULES. All the MODULES are built in a context where
they can refer to each other."
(let* ((module-drv (imported-modules store modules
#:system system))
(module-dir (derivation-path->output-path module-drv))
(files (map (lambda (m)
(let ((f (string-join (map symbol->string m)
"/")))
(cons (string-append f ".go")
(string-append module-dir "/" f ".scm"))))
modules)))
(define builder
`(begin
(use-modules (system base compile))
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(chdir out))
(set! %load-path
(cons ,module-dir %load-path))
,@(map (match-lambda
((output . input)
(let ((make-parent-dirs (map (lambda (dir)
`(unless (file-exists? ,dir)
(mkdir ,dir)))
(parent-directories output))))
`(begin
,@make-parent-dirs
(compile-file ,input
#:output-file ,output
#:opts %auto-compilation-options)))))
files)))
(build-expression->derivation store name system builder
`(("modules" ,module-drv)))))
(define* (build-expression->derivation store name system exp inputs
#:key (outputs '("out"))
@ -571,6 +611,11 @@ (define %build-inputs
drv)))))
inputs))
,@(if (null? modules)
'()
;; Remove our own settings.
'((unsetenv "GUILE_LOAD_COMPILED_PATH")))
;; Guile sets it, but remove it to avoid conflicts when
;; building Guile-using packages.
(unsetenv "LD_LIBRARY_PATH")))
@ -585,19 +630,30 @@ (define %build-inputs
(remove module-form? exp))
(_ `(,exp))))))
(map second inputs)))
(mod-drv (if (null? modules)
#f
(imported-modules store modules)))
(mod-drv (and (pair? modules)
(imported-modules store modules)))
(mod-dir (and mod-drv
(derivation-path->output-path mod-drv))))
(derivation-path->output-path mod-drv)))
(go-drv (and (pair? modules)
(compiled-modules store modules)))
(go-dir (and go-drv
(derivation-path->output-path go-drv))))
(derivation store name system guile
`("--no-auto-compile"
,@(if mod-dir `("-L" ,mod-dir) '())
,builder)
env-vars
;; When MODULES is non-empty, shamelessly clobber
;; $GUILE_LOAD_COMPILED_PATH.
(if go-dir
`(("GUILE_LOAD_COMPILED_PATH" . ,go-dir)
,@(alist-delete "GUILE_LOAD_COMPILED_PATH"
env-vars))
env-vars)
`((,(or guile-for-build (%guile-for-build)))
(,builder)
,@(map cdr inputs)
,@(if mod-drv `((,mod-drv)) '()))
,@(if mod-drv `((,mod-drv) (,go-drv)) '()))
#:hash hash #:hash-algo hash-algo
#:outputs outputs)))

17
tests/derivations.scm
View file

@ -324,6 +324,23 @@ (define %coreutils
get-bytevector-all))))
files)))))
(test-assert "build-expression->derivation with modules"
(let* ((builder `(begin
(use-modules (guix build utils))
(let ((out (assoc-ref %outputs "out")))
(mkdir-p (string-append out "/guile/guix/nix"))
#t)))
(drv-path (build-expression->derivation %store
"test-with-modules"
(%current-system)
builder '()
#:modules
'((guix build utils)))))
(and (build-derivations %store (list drv-path))
(let* ((p (derivation-path->output-path drv-path))
(s (stat (string-append p "/guile/guix/nix"))))
(eq? (stat:type s) 'directory)))))
(test-skip (if (false-if-exception (getaddrinfo "ftp.gnu.org" "http"))
0
1))