From 3eb982377e32018d7d13c2f492c44a816781787f Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Tue, 12 Jun 2012 00:18:14 +0200 Subject: Augment `build-expression->derivation' with #:modules; add `http-fetch'. * guix/derivations.scm (imported-modules): New procedure. (build-expression->derivation): New keyword argument `modules'. Use `imported-modules' when MODULES is non-empty, and pass it with `-L' to GUILE. * guix/build/http.scm, guix/http.scm, tests/builders.scm: New files. --- guix/build/http.scm | 42 ++++++++++++++++++++++++++++++++++++++++++ guix/derivations.scm | 35 +++++++++++++++++++++++++++++++---- guix/http.scm | 45 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 118 insertions(+), 4 deletions(-) create mode 100644 guix/build/http.scm create mode 100644 guix/http.scm (limited to 'guix') diff --git a/guix/build/http.scm b/guix/build/http.scm new file mode 100644 index 0000000000..f6f797f9cf --- /dev/null +++ b/guix/build/http.scm @@ -0,0 +1,42 @@ +;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*- +;;; Copyright (C) 2012 Ludovic Courtès +;;; +;;; This file is part of Guix. +;;; +;;; Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with Guix. If not, see . + +(define-module (guix build http) + #:use-module (web client) + #:use-module (web uri) + #:use-module (rnrs io ports) + #:use-module (srfi srfi-11) + #:export (http-fetch)) + +;;; Commentary: +;;; +;;; Fetch data such as tarballs over HTTP (builder-side code). +;;; +;;; Code: + +(define (http-fetch url file) + "Fetch data from URL and write it to FILE. Return FILE on success." + + ;; FIXME: Use a variant of `http-get' that returns a port instead of + ;; loading everything in memory. + (let-values (((resp bv) + (http-get (string->uri url) #:decode-body? #f))) + (call-with-output-file file + (lambda (p) + (put-bytevector p bv)))) + file) diff --git a/guix/derivations.scm b/guix/derivations.scm index c35595fd1e..47023f566c 100644 --- a/guix/derivations.scm +++ b/guix/derivations.scm @@ -418,9 +418,27 @@ (define (parent-dirs file-name) (build-expression->derivation store name (%current-system) builder files))) +(define* (imported-modules store modules + #:key (name "module-import") + (system (%current-system))) + "Return a derivation that contains the source files of MODULES, a list of +module names such as `(ice-9 q)'. All of MODULES must be in the current +search path." + ;; TODO: Determine the closure of MODULES, build the `.go' files, + ;; canonicalize the source files through read/write, etc. + (let ((files (map (lambda (m) + (let ((f (string-append + (string-join (map symbol->string m) "/") + ".scm"))) + (cons f (search-path %load-path f)))) + modules))) + (imported-files store files #:name name #:system system))) + + (define* (build-expression->derivation store name system exp inputs #:key (outputs '("out")) - hash hash-algo) + hash hash-algo + (modules '())) "Return a derivation that executes Scheme expression EXP as a builder for derivation NAME. INPUTS must be a list of string/derivation-path pairs. EXP is evaluated in an environment where %OUTPUT is bound to the main output @@ -449,10 +467,19 @@ (define %build-inputs (string-append name "-guile-builder") (string-append (object->string prologue) (object->string exp)) - (map cdr inputs)))) - (derivation store name system guile `("--no-auto-compile" ,builder) + (map cdr inputs))) + (mod-drv (if (null? modules) + #f + (imported-modules store modules))) + (mod-dir (and mod-drv + (derivation-path->output-path mod-drv)))) + (derivation store name system guile + `("--no-auto-compile" + ,@(if mod-dir `("-L" ,mod-dir) '()) + ,builder) '(("HOME" . "/homeless")) `((,(%guile-for-build)) - (,builder)) + (,builder) + ,@(if mod-drv `((,mod-drv)) '())) #:hash hash #:hash-algo hash-algo #:outputs outputs))) diff --git a/guix/http.scm b/guix/http.scm new file mode 100644 index 0000000000..21234b388f --- /dev/null +++ b/guix/http.scm @@ -0,0 +1,45 @@ +;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*- +;;; Copyright (C) 2012 Ludovic Courtès +;;; +;;; This file is part of Guix. +;;; +;;; Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with Guix. If not, see . + +(define-module (guix http) + #:use-module (guix derivations) + #:use-module (guix utils) + #:export (http-fetch)) + +;;; Commentary: +;;; +;;; Produce fixed-output derivations with data fetched over HTTP. +;;; +;;; Code: + +(define* (http-fetch store url hash-algo hash + #:key name (system (%current-system))) + "Return the path of a fixed-output derivation in STORE that fetches URL, +which is expected to have hash HASH of type HASH-ALGO (a symbol). By +default, the file name is the base name of URL; optionally, NAME can specify +a different file name." + (define builder + `(begin + (use-modules (guix build http)) + (http-fetch ,url %output))) + + (build-expression->derivation store (or name (basename url)) system + builder '() + #:hash-algo hash-algo + #:hash hash + #:modules '((guix build http)))) -- cgit v1.2.3