6b6298ae39
Before that, 'guix environment guile' (for instance) would define environment variables that would refer to the "include" output of Bash, the "debug" output of libgc, etc., even though these are not listed as inputs in the recipe of 'guile'. * guix/gexp.scm (lower-inputs): Export. * guix/scripts/environment.scm (evaluate-input-search-paths): Remove 'derivations' parameter; add 'search-paths'. Expect 'inputs' to be a list of tuples. Adjust callers. (create-environment): Remove 'derivations' parameter; add 'search-paths'. (show-search-paths): Likewise. (package+propagated-inputs): New procedure. (packages->transitive-inputs, packages+propagated-inputs): Remove. (build-inputs): Expect INPUTS to be a list of derivation tuples. (guix-environment): Compute INPUTS using 'package+propagated-inputs', 'package->bag', and 'bag-transitive-inputs'. Move 'run-with-store' higher. * tests/guix-environment.sh: Add test with FINDUTILS-BOOT0.
959 lines
37 KiB
Scheme
959 lines
37 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix derivations)
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#:use-module (guix utils)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-9)
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#:use-module (srfi srfi-9 gnu)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 match)
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#:export (gexp
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gexp?
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gexp-input
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gexp-input?
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local-file
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local-file?
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local-file-file
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local-file-name
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local-file-recursive?
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plain-file
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plain-file?
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plain-file-name
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plain-file-content
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gexp->derivation
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gexp->file
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gexp->script
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text-file*
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imported-files
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imported-modules
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compiled-modules
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define-gexp-compiler
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gexp-compiler?
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lower-inputs))
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;;; Commentary:
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;;;
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;;; This module implements "G-expressions", or "gexps". Gexps are like
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;;; S-expressions (sexps), with two differences:
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;;;
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;;; 1. References (un-quotations) to derivations or packages in a gexp are
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;;; replaced by the corresponding output file name; in addition, the
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;;; 'ungexp-native' unquote-like form allows code to explicitly refer to
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;;; the native code of a given package, in case of cross-compilation;
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;;;
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;;; 2. Gexps embed information about the derivations they refer to.
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;;;
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;;; Gexps make it easy to write to files Scheme code that refers to store
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;;; items, or to write Scheme code to build derivations.
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;;;
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;;; Code:
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;; "G expressions".
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(define-record-type <gexp>
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(make-gexp references natives proc)
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gexp?
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(references gexp-references) ; ((DRV-OR-PKG OUTPUT) ...)
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(natives gexp-native-references) ; ((DRV-OR-PKG OUTPUT) ...)
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(proc gexp-proc)) ; procedure
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(define (write-gexp gexp port)
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"Write GEXP on PORT."
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(display "#<gexp " port)
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;; Try to write the underlying sexp. Now, this trick doesn't work when
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;; doing things like (ungexp-splicing (gexp ())) because GEXP's procedure
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;; tries to use 'append' on that, which fails with wrong-type-arg.
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(false-if-exception
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(write (apply (gexp-proc gexp)
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(append (gexp-references gexp)
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(gexp-native-references gexp)))
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port))
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(format port " ~a>"
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(number->string (object-address gexp) 16)))
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(set-record-type-printer! <gexp> write-gexp)
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;;;
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;;; Methods.
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;;;
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;; Compiler for a type of objects that may be introduced in a gexp.
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(define-record-type <gexp-compiler>
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(gexp-compiler predicate lower)
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gexp-compiler?
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(predicate gexp-compiler-predicate)
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(lower gexp-compiler-lower))
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(define %gexp-compilers
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;; List of <gexp-compiler>.
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'())
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(define (register-compiler! compiler)
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"Register COMPILER as a gexp compiler."
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(set! %gexp-compilers (cons compiler %gexp-compilers)))
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(define (lookup-compiler object)
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"Search a compiler for OBJECT. Upon success, return the three argument
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procedure to lower it; otherwise return #f."
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(any (match-lambda
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(($ <gexp-compiler> predicate lower)
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(and (predicate object) lower)))
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%gexp-compilers))
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(define-syntax-rule (define-gexp-compiler (name (param predicate)
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system target)
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body ...)
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"Define NAME as a compiler for objects matching PREDICATE encountered in
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gexps. BODY must return a derivation for PARAM, an object that matches
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PREDICATE, for SYSTEM and TARGET (the latter of which is #f except when
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cross-compiling.)"
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(begin
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(define name
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(gexp-compiler predicate
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(lambda (param system target)
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body ...)))
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(register-compiler! name)))
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(define-gexp-compiler (derivation-compiler (drv derivation?) system target)
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;; Derivations are the lowest-level representation, so this is the identity
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;; compiler.
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(with-monad %store-monad
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(return drv)))
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;;;
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;;; File declarations.
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;;;
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(define-record-type <local-file>
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(%local-file file name recursive?)
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local-file?
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(file local-file-file) ;string
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(name local-file-name) ;string
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(recursive? local-file-recursive?)) ;Boolean
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(define* (local-file file #:optional (name (basename file))
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#:key recursive?)
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"Return an object representing local file FILE to add to the store; this
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object can be used in a gexp. FILE will be added to the store under NAME--by
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default the base name of FILE.
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When RECURSIVE? is true, the contents of FILE are added recursively; if FILE
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designates a flat file and RECURSIVE? is true, its contents are added, and its
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permission bits are kept.
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This is the declarative counterpart of the 'interned-file' monadic procedure."
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;; Canonicalize FILE so that if it's a symlink, it is resolved. Failing to
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;; do that, when RECURSIVE? is #t, we could end up creating a dangling
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;; symlink in the store, and when RECURSIVE? is #f 'add-to-store' would just
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;; throw an error, both of which are inconvenient.
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(%local-file (canonicalize-path file) name recursive?))
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(define-gexp-compiler (local-file-compiler (file local-file?) system target)
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;; "Compile" FILE by adding it to the store.
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(match file
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(($ <local-file> file name recursive?)
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(interned-file file name #:recursive? recursive?))))
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(define-record-type <plain-file>
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(%plain-file name content references)
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plain-file?
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(name plain-file-name) ;string
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(content plain-file-content) ;string
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(references plain-file-references)) ;list (currently unused)
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(define (plain-file name content)
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"Return an object representing a text file called NAME with the given
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CONTENT (a string) to be added to the store.
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This is the declarative counterpart of 'text-file'."
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;; XXX: For now just ignore 'references' because it's not clear how to use
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;; them in a declarative context.
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(%plain-file name content '()))
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(define-gexp-compiler (plain-file-compiler (file plain-file?) system target)
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;; "Compile" FILE by adding it to the store.
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(match file
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(($ <plain-file> name content references)
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(text-file name content references))))
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;;;
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;;; Inputs & outputs.
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;;;
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;; The input of a gexp.
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(define-record-type <gexp-input>
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(%gexp-input thing output native?)
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gexp-input?
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(thing gexp-input-thing) ;<package> | <origin> | <derivation> | ...
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(output gexp-input-output) ;string
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(native? gexp-input-native?)) ;Boolean
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(define (write-gexp-input input port)
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(match input
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(($ <gexp-input> thing output #f)
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(format port "#<gexp-input ~s:~a>" thing output))
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(($ <gexp-input> thing output #t)
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(format port "#<gexp-input native ~s:~a>" thing output))))
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(set-record-type-printer! <gexp-input> write-gexp-input)
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(define* (gexp-input thing ;convenience procedure
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#:optional (output "out")
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#:key native?)
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"Return a new <gexp-input> for the OUTPUT of THING; NATIVE? determines
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whether this should be considered a \"native\" input or not."
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(%gexp-input thing output native?))
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;; Reference to one of the derivation's outputs, for gexps used in
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;; derivations.
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(define-record-type <gexp-output>
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(gexp-output name)
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gexp-output?
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(name gexp-output-name))
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(define (write-gexp-output output port)
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(match output
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(($ <gexp-output> name)
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(format port "#<gexp-output ~a>" name))))
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(set-record-type-printer! <gexp-output> write-gexp-output)
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(define raw-derivation
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(store-lift derivation))
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(define* (lower-inputs inputs
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#:key system target)
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"Turn any package from INPUTS into a derivation for SYSTEM; return the
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corresponding input list as a monadic value. When TARGET is true, use it as
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the cross-compilation target triplet."
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(with-monad %store-monad
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(sequence %store-monad
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(map (match-lambda
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(((? struct? thing) sub-drv ...)
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(mlet* %store-monad ((lower -> (lookup-compiler thing))
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(drv (lower thing system target)))
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(return `(,drv ,@sub-drv))))
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(input
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(return input)))
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inputs))))
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(define* (lower-reference-graphs graphs #:key system target)
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"Given GRAPHS, a list of (FILE-NAME INPUT ...) lists for use as a
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#:reference-graphs argument, lower it such that each INPUT is replaced by the
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corresponding derivation."
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(match graphs
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(((file-names . inputs) ...)
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(mlet %store-monad ((inputs (lower-inputs inputs
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#:system system
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#:target target)))
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(return (map cons file-names inputs))))))
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(define* (lower-references lst #:key system target)
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"Based on LST, a list of output names and packages, return a list of output
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names and file names suitable for the #:allowed-references argument to
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'derivation'."
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;; XXX: Currently outputs other than "out" are not supported, and things
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;; other than packages aren't either.
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(with-monad %store-monad
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(define lower
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(match-lambda
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((? string? output)
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(return output))
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(($ <gexp-input> thing output native?)
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(mlet* %store-monad ((lower -> (lookup-compiler thing))
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(drv (lower thing system
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(if native? #f target))))
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(return (derivation->output-path drv output))))
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(thing
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(mlet* %store-monad ((lower -> (lookup-compiler thing))
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(drv (lower thing system target)))
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(return (derivation->output-path drv))))))
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(sequence %store-monad (map lower lst))))
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(define default-guile-derivation
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;; Here we break the abstraction by talking to the higher-level layer.
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;; Thus, do the resolution lazily to hide the circular dependency.
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(let ((proc (delay
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(let ((iface (resolve-interface '(guix packages))))
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(module-ref iface 'default-guile-derivation)))))
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(lambda (system)
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((force proc) system))))
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(define* (gexp->derivation name exp
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#:key
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system (target 'current)
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hash hash-algo recursive?
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(env-vars '())
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(modules '())
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(module-path %load-path)
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(guile-for-build (%guile-for-build))
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(graft? (%graft?))
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references-graphs
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allowed-references
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leaked-env-vars
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local-build?)
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"Return a derivation NAME that runs EXP (a gexp) with GUILE-FOR-BUILD (a
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derivation) on SYSTEM. When TARGET is true, it is used as the
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cross-compilation target triplet for packages referred to by EXP.
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Make MODULES available in the evaluation context of EXP; MODULES is a list of
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names of Guile modules searched in MODULE-PATH to be copied in the store,
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compiled, and made available in the load path during the execution of
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EXP---e.g., '((guix build utils) (guix build gnu-build-system)).
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GRAFT? determines whether packages referred to by EXP should be grafted when
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applicable.
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When REFERENCES-GRAPHS is true, it must be a list of tuples of one of the
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following forms:
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(FILE-NAME PACKAGE)
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(FILE-NAME PACKAGE OUTPUT)
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(FILE-NAME DERIVATION)
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(FILE-NAME DERIVATION OUTPUT)
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(FILE-NAME STORE-ITEM)
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The right-hand-side of each element of REFERENCES-GRAPHS is automatically made
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an input of the build process of EXP. In the build environment, each
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FILE-NAME contains the reference graph of the corresponding item, in a simple
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text format.
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ALLOWED-REFERENCES must be either #f or a list of output names and packages.
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In the latter case, the list denotes store items that the result is allowed to
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refer to. Any reference to another store item will lead to a build error.
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The other arguments are as for 'derivation'."
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(define %modules modules)
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(define outputs (gexp-outputs exp))
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(define (graphs-file-names graphs)
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;; Return a list of (FILE-NAME . STORE-PATH) pairs made from GRAPHS.
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(map (match-lambda
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;; TODO: Remove 'derivation?' special cases.
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((file-name (? derivation? drv))
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(cons file-name (derivation->output-path drv)))
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((file-name (? derivation? drv) sub-drv)
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(cons file-name (derivation->output-path drv sub-drv)))
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((file-name thing)
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(cons file-name thing)))
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graphs))
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(mlet* %store-monad (;; The following binding forces '%current-system' and
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;; '%current-target-system' to be looked up at >>=
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;; time.
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(graft? (set-grafting graft?))
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(system -> (or system (%current-system)))
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(target -> (if (eq? target 'current)
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(%current-target-system)
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target))
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(normals (lower-inputs (gexp-inputs exp)
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#:system system
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#:target target))
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(natives (lower-inputs (gexp-native-inputs exp)
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#:system system
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#:target #f))
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(inputs -> (append normals natives))
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(sexp (gexp->sexp exp
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#:system system
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#:target target))
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(builder (text-file (string-append name "-builder")
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(object->string sexp)))
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(modules (if (pair? %modules)
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(imported-modules %modules
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#:system system
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#:module-path module-path
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#:guile guile-for-build)
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(return #f)))
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(compiled (if (pair? %modules)
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(compiled-modules %modules
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#:system system
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#:module-path module-path
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#:guile guile-for-build)
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(return #f)))
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(graphs (if references-graphs
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(lower-reference-graphs references-graphs
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#:system system
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#:target target)
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(return #f)))
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(allowed (if allowed-references
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(lower-references allowed-references
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#:system system
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#:target target)
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(return #f)))
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(guile (if guile-for-build
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(return guile-for-build)
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(default-guile-derivation system))))
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(mbegin %store-monad
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(set-grafting graft?) ;restore the initial setting
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(raw-derivation name
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(string-append (derivation->output-path guile)
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"/bin/guile")
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`("--no-auto-compile"
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,@(if (pair? %modules)
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`("-L" ,(derivation->output-path modules)
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"-C" ,(derivation->output-path compiled))
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'())
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,builder)
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#:outputs outputs
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#:env-vars env-vars
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#:system system
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#:inputs `((,guile)
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(,builder)
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,@(if modules
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`((,modules) (,compiled) ,@inputs)
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inputs)
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,@(match graphs
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(((_ . inputs) ...) inputs)
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(_ '())))
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#:hash hash #:hash-algo hash-algo #:recursive? recursive?
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#:references-graphs (and=> graphs graphs-file-names)
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#:allowed-references allowed
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#:leaked-env-vars leaked-env-vars
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#:local-build? local-build?))))
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(define* (gexp-inputs exp #:key native?)
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"Return the input list for EXP. When NATIVE? is true, return only native
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references; otherwise, return only non-native references."
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(define (add-reference-inputs ref result)
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(match ref
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(($ <gexp-input> (? gexp? exp) _ #t)
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(if native?
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(append (gexp-inputs exp)
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(gexp-inputs exp #:native? #t)
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result)
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result))
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(($ <gexp-input> (? gexp? exp) _ #f)
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(if native?
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(append (gexp-inputs exp #:native? #t)
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result)
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(append (gexp-inputs exp)
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result)))
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(($ <gexp-input> (? string? str))
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(if (direct-store-path? str)
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(cons `(,str) result)
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result))
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(($ <gexp-input> (? struct? thing) output)
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(if (lookup-compiler thing)
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;; THING is a derivation, or a package, or an origin, etc.
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(cons `(,thing ,output) result)
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result))
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(($ <gexp-input> (lst ...) output n?)
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(fold-right add-reference-inputs result
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;; XXX: For now, automatically convert LST to a list of
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;; gexp-inputs.
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(map (match-lambda
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((? gexp-input? x) x)
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(x (%gexp-input x "out" (or n? native?))))
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lst)))
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(_
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;; Ignore references to other kinds of objects.
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result)))
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(fold-right add-reference-inputs
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||
'()
|
||
(if native?
|
||
(gexp-native-references exp)
|
||
(gexp-references exp))))
|
||
|
||
(define gexp-native-inputs
|
||
(cut gexp-inputs <> #:native? #t))
|
||
|
||
(define (gexp-outputs exp)
|
||
"Return the outputs referred to by EXP as a list of strings."
|
||
(define (add-reference-output ref result)
|
||
(match ref
|
||
(($ <gexp-output> name)
|
||
(cons name result))
|
||
(($ <gexp-input> (? gexp? exp))
|
||
(append (gexp-outputs exp) result))
|
||
(($ <gexp-input> (lst ...) output native?)
|
||
;; XXX: Automatically convert LST.
|
||
(add-reference-output (map (match-lambda
|
||
((? gexp-input? x) x)
|
||
(x (%gexp-input x "out" native?)))
|
||
lst)
|
||
result))
|
||
((lst ...)
|
||
(fold-right add-reference-output result lst))
|
||
(_
|
||
result)))
|
||
|
||
(delete-duplicates
|
||
(add-reference-output (gexp-references exp) '())))
|
||
|
||
(define* (gexp->sexp exp #:key
|
||
(system (%current-system))
|
||
(target (%current-target-system)))
|
||
"Return (monadically) the sexp corresponding to EXP for the given OUTPUT,
|
||
and in the current monad setting (system type, etc.)"
|
||
(define* (reference->sexp ref #:optional native?)
|
||
(with-monad %store-monad
|
||
(match ref
|
||
(($ <gexp-output> output)
|
||
;; Output file names are not known in advance but the daemon defines
|
||
;; an environment variable for each of them at build time, so use
|
||
;; that trick.
|
||
(return `((@ (guile) getenv) ,output)))
|
||
(($ <gexp-input> (? gexp? exp) output n?)
|
||
(gexp->sexp exp
|
||
#:system system
|
||
#:target (if (or n? native?) #f target)))
|
||
(($ <gexp-input> (refs ...) output n?)
|
||
(sequence %store-monad
|
||
(map (lambda (ref)
|
||
;; XXX: Automatically convert REF to an gexp-input.
|
||
(reference->sexp
|
||
(if (gexp-input? ref)
|
||
ref
|
||
(%gexp-input ref "out" n?))
|
||
native?))
|
||
refs)))
|
||
(($ <gexp-input> (? struct? thing) output n?)
|
||
(let ((lower (lookup-compiler thing))
|
||
(target (if (or n? native?) #f target)))
|
||
(mlet %store-monad ((obj (lower thing system target)))
|
||
;; OBJ must be either a derivation or a store file name.
|
||
(return (match obj
|
||
((? derivation? drv)
|
||
(derivation->output-path drv output))
|
||
((? string? file)
|
||
file))))))
|
||
(($ <gexp-input> x)
|
||
(return x))
|
||
(x
|
||
(return x)))))
|
||
|
||
(mlet %store-monad
|
||
((args (sequence %store-monad
|
||
(append (map reference->sexp (gexp-references exp))
|
||
(map (cut reference->sexp <> #t)
|
||
(gexp-native-references exp))))))
|
||
(return (apply (gexp-proc exp) args))))
|
||
|
||
(define (syntax-location-string s)
|
||
"Return a string representing the source code location of S."
|
||
(let ((props (syntax-source s)))
|
||
(if props
|
||
(let ((file (assoc-ref props 'filename))
|
||
(line (and=> (assoc-ref props 'line) 1+))
|
||
(column (assoc-ref props 'column)))
|
||
(if file
|
||
(simple-format #f "~a:~a:~a"
|
||
file line column)
|
||
(simple-format #f "~a:~a" line column)))
|
||
"<unknown location>")))
|
||
|
||
(define-syntax gexp
|
||
(lambda (s)
|
||
(define (collect-escapes exp)
|
||
;; Return all the 'ungexp' present in EXP.
|
||
(let loop ((exp exp)
|
||
(result '()))
|
||
(syntax-case exp (ungexp
|
||
ungexp-splicing
|
||
ungexp-native
|
||
ungexp-native-splicing)
|
||
((ungexp _)
|
||
(cons exp result))
|
||
((ungexp _ _)
|
||
(cons exp result))
|
||
((ungexp-splicing _ ...)
|
||
(cons exp result))
|
||
((ungexp-native _ ...)
|
||
result)
|
||
((ungexp-native-splicing _ ...)
|
||
result)
|
||
((exp0 exp ...)
|
||
(let ((result (loop #'exp0 result)))
|
||
(fold loop result #'(exp ...))))
|
||
(_
|
||
result))))
|
||
|
||
(define (collect-native-escapes exp)
|
||
;; Return all the 'ungexp-native' forms present in EXP.
|
||
(let loop ((exp exp)
|
||
(result '()))
|
||
(syntax-case exp (ungexp
|
||
ungexp-splicing
|
||
ungexp-native
|
||
ungexp-native-splicing)
|
||
((ungexp-native _)
|
||
(cons exp result))
|
||
((ungexp-native _ _)
|
||
(cons exp result))
|
||
((ungexp-native-splicing _ ...)
|
||
(cons exp result))
|
||
((ungexp _ ...)
|
||
result)
|
||
((ungexp-splicing _ ...)
|
||
result)
|
||
((exp0 exp ...)
|
||
(let ((result (loop #'exp0 result)))
|
||
(fold loop result #'(exp ...))))
|
||
(_
|
||
result))))
|
||
|
||
(define (escape->ref exp)
|
||
;; Turn 'ungexp' form EXP into a "reference".
|
||
(syntax-case exp (ungexp ungexp-splicing
|
||
ungexp-native ungexp-native-splicing
|
||
output)
|
||
((ungexp output)
|
||
#'(gexp-output "out"))
|
||
((ungexp output name)
|
||
#'(gexp-output name))
|
||
((ungexp thing)
|
||
#'(%gexp-input thing "out" #f))
|
||
((ungexp drv-or-pkg out)
|
||
#'(%gexp-input drv-or-pkg out #f))
|
||
((ungexp-splicing lst)
|
||
#'(%gexp-input lst "out" #f))
|
||
((ungexp-native thing)
|
||
#'(%gexp-input thing "out" #t))
|
||
((ungexp-native drv-or-pkg out)
|
||
#'(%gexp-input drv-or-pkg out #t))
|
||
((ungexp-native-splicing lst)
|
||
#'(%gexp-input lst "out" #t))))
|
||
|
||
(define (substitute-ungexp exp substs)
|
||
;; Given EXP, an 'ungexp' or 'ungexp-native' form, substitute it with
|
||
;; the corresponding form in SUBSTS.
|
||
(match (assoc exp substs)
|
||
((_ id)
|
||
id)
|
||
(_
|
||
#'(syntax-error "error: no 'ungexp' substitution"
|
||
#'ref))))
|
||
|
||
(define (substitute-ungexp-splicing exp substs)
|
||
(syntax-case exp ()
|
||
((exp rest ...)
|
||
(match (assoc #'exp substs)
|
||
((_ id)
|
||
(with-syntax ((id id))
|
||
#`(append id
|
||
#,(substitute-references #'(rest ...) substs))))
|
||
(_
|
||
#'(syntax-error "error: no 'ungexp-splicing' substitution"
|
||
#'ref))))))
|
||
|
||
(define (substitute-references exp substs)
|
||
;; Return a variant of EXP where all the cars of SUBSTS have been
|
||
;; replaced by the corresponding cdr.
|
||
(syntax-case exp (ungexp ungexp-native
|
||
ungexp-splicing ungexp-native-splicing)
|
||
((ungexp _ ...)
|
||
(substitute-ungexp exp substs))
|
||
((ungexp-native _ ...)
|
||
(substitute-ungexp exp substs))
|
||
(((ungexp-splicing _ ...) rest ...)
|
||
(substitute-ungexp-splicing exp substs))
|
||
(((ungexp-native-splicing _ ...) rest ...)
|
||
(substitute-ungexp-splicing exp substs))
|
||
((exp0 exp ...)
|
||
#`(cons #,(substitute-references #'exp0 substs)
|
||
#,(substitute-references #'(exp ...) substs)))
|
||
(x #''x)))
|
||
|
||
(syntax-case s (ungexp output)
|
||
((_ exp)
|
||
(let* ((normals (delete-duplicates (collect-escapes #'exp)))
|
||
(natives (delete-duplicates (collect-native-escapes #'exp)))
|
||
(escapes (append normals natives))
|
||
(formals (generate-temporaries escapes))
|
||
(sexp (substitute-references #'exp (zip escapes formals)))
|
||
(refs (map escape->ref normals))
|
||
(nrefs (map escape->ref natives)))
|
||
#`(make-gexp (list #,@refs) (list #,@nrefs)
|
||
(lambda #,formals
|
||
#,sexp)))))))
|
||
|
||
|
||
;;;
|
||
;;; Module handling.
|
||
;;;
|
||
|
||
(define %mkdir-p-definition
|
||
;; The code for 'mkdir-p' is copied from (guix build utils). We use it in
|
||
;; derivations that cannot use the #:modules argument of 'gexp->derivation'
|
||
;; precisely because they implement that functionality.
|
||
(gexp
|
||
(define (mkdir-p dir)
|
||
(define absolute?
|
||
(string-prefix? "/" dir))
|
||
|
||
(define not-slash
|
||
(char-set-complement (char-set #\/)))
|
||
|
||
(let loop ((components (string-tokenize dir not-slash))
|
||
(root (if absolute? "" ".")))
|
||
(match components
|
||
((head tail ...)
|
||
(let ((path (string-append root "/" head)))
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(mkdir path)
|
||
(loop tail path))
|
||
(lambda args
|
||
(if (= EEXIST (system-error-errno args))
|
||
(loop tail path)
|
||
(apply throw args))))))
|
||
(() #t))))))
|
||
|
||
(define* (imported-files files
|
||
#:key (name "file-import")
|
||
(system (%current-system))
|
||
(guile (%guile-for-build)))
|
||
"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 file-pair
|
||
(match-lambda
|
||
((final-path . file-name)
|
||
(mlet %store-monad ((file (interned-file file-name
|
||
(basename final-path))))
|
||
(return (list final-path file))))))
|
||
|
||
(mlet %store-monad ((files (sequence %store-monad
|
||
(map file-pair files))))
|
||
(define build
|
||
(gexp
|
||
(begin
|
||
(use-modules (ice-9 match))
|
||
|
||
(ungexp %mkdir-p-definition)
|
||
|
||
(mkdir (ungexp output)) (chdir (ungexp output))
|
||
(for-each (match-lambda
|
||
((final-path store-path)
|
||
(mkdir-p (dirname final-path))
|
||
(symlink store-path final-path)))
|
||
'(ungexp files)))))
|
||
|
||
;; TODO: Pass FILES as an environment variable so that BUILD remains
|
||
;; exactly the same regardless of FILES: less disk space, and fewer
|
||
;; 'add-to-store' RPCs.
|
||
(gexp->derivation name build
|
||
#:system system
|
||
#:guile-for-build guile
|
||
#:local-build? #t)))
|
||
|
||
(define search-path*
|
||
;; A memoizing version of 'search-path' so 'imported-modules' does not end
|
||
;; up looking for the same files over and over again.
|
||
(memoize search-path))
|
||
|
||
(define* (imported-modules modules
|
||
#:key (name "module-import")
|
||
(system (%current-system))
|
||
(guile (%guile-for-build))
|
||
(module-path %load-path))
|
||
"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 MODULE-PATH
|
||
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* module-path f))))
|
||
modules)))
|
||
(imported-files files #:name name #:system system
|
||
#:guile guile)))
|
||
|
||
(define* (compiled-modules modules
|
||
#:key (name "module-import-compiled")
|
||
(system (%current-system))
|
||
(guile (%guile-for-build))
|
||
(module-path %load-path))
|
||
"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."
|
||
(mlet %store-monad ((modules (imported-modules modules
|
||
#:system system
|
||
#:guile guile
|
||
#:module-path
|
||
module-path)))
|
||
(define build
|
||
(gexp
|
||
(begin
|
||
(use-modules (ice-9 ftw)
|
||
(ice-9 match)
|
||
(srfi srfi-26)
|
||
(system base compile))
|
||
|
||
(ungexp %mkdir-p-definition)
|
||
|
||
(define (regular? file)
|
||
(not (member file '("." ".."))))
|
||
|
||
(define (process-directory directory output)
|
||
(let ((entries (map (cut string-append directory "/" <>)
|
||
(scandir directory regular?))))
|
||
(for-each (lambda (entry)
|
||
(if (file-is-directory? entry)
|
||
(let ((output (string-append output "/"
|
||
(basename entry))))
|
||
(mkdir-p output)
|
||
(process-directory entry output))
|
||
(let* ((base (string-drop-right
|
||
(basename entry)
|
||
4)) ;.scm
|
||
(output (string-append output "/" base
|
||
".go")))
|
||
(compile-file entry
|
||
#:output-file output
|
||
#:opts
|
||
%auto-compilation-options))))
|
||
entries)))
|
||
|
||
(set! %load-path (cons (ungexp modules) %load-path))
|
||
(mkdir (ungexp output))
|
||
(chdir (ungexp modules))
|
||
(process-directory "." (ungexp output)))))
|
||
|
||
;; TODO: Pass MODULES as an environment variable.
|
||
(gexp->derivation name build
|
||
#:system system
|
||
#:guile-for-build guile
|
||
#:local-build? #t)))
|
||
|
||
|
||
;;;
|
||
;;; Convenience procedures.
|
||
;;;
|
||
|
||
(define (default-guile)
|
||
;; Lazily resolve 'guile-final'. This module must not refer to (gnu …)
|
||
;; modules directly, to avoid circular dependencies, hence this hack.
|
||
(module-ref (resolve-interface '(gnu packages commencement))
|
||
'guile-final))
|
||
|
||
(define* (gexp->script name exp
|
||
#:key (modules '()) (guile (default-guile)))
|
||
"Return an executable script NAME that runs EXP using GUILE with MODULES in
|
||
its search path."
|
||
(mlet %store-monad ((modules (imported-modules modules))
|
||
(compiled (compiled-modules modules)))
|
||
(gexp->derivation name
|
||
(gexp
|
||
(call-with-output-file (ungexp output)
|
||
(lambda (port)
|
||
;; Note: that makes a long shebang. When the store
|
||
;; is /gnu/store, that fits within the 128-byte
|
||
;; limit imposed by Linux, but that may go beyond
|
||
;; when running tests.
|
||
(format port
|
||
"#!~a/bin/guile --no-auto-compile~%!#~%"
|
||
(ungexp guile))
|
||
|
||
;; Write the 'eval-when' form so that it can be
|
||
;; compiled.
|
||
(write
|
||
'(eval-when (expand load eval)
|
||
(set! %load-path
|
||
(cons (ungexp modules) %load-path))
|
||
(set! %load-compiled-path
|
||
(cons (ungexp compiled)
|
||
%load-compiled-path)))
|
||
port)
|
||
(write '(ungexp exp) port)
|
||
(chmod port #o555)))))))
|
||
|
||
(define (gexp->file name exp)
|
||
"Return a derivation that builds a file NAME containing EXP."
|
||
(gexp->derivation name
|
||
(gexp
|
||
(call-with-output-file (ungexp output)
|
||
(lambda (port)
|
||
(write '(ungexp exp) port))))
|
||
#:local-build? #t))
|
||
|
||
(define* (text-file* name #:rest text)
|
||
"Return as a monadic value a derivation that builds a text file containing
|
||
all of TEXT. TEXT may list, in addition to strings, objects of any type that
|
||
can be used in a gexp: packages, derivations, local file objects, etc. The
|
||
resulting store file holds references to all these."
|
||
(define builder
|
||
(gexp (call-with-output-file (ungexp output "out")
|
||
(lambda (port)
|
||
(display (string-append (ungexp-splicing text)) port)))))
|
||
|
||
(gexp->derivation name builder))
|
||
|
||
|
||
;;;
|
||
;;; Syntactic sugar.
|
||
;;;
|
||
|
||
(eval-when (expand load eval)
|
||
(define* (read-ungexp chr port #:optional native?)
|
||
"Read an 'ungexp' or 'ungexp-splicing' form from PORT. When NATIVE? is
|
||
true, use 'ungexp-native' and 'ungexp-native-splicing' instead."
|
||
(define unquote-symbol
|
||
(match (peek-char port)
|
||
(#\@
|
||
(read-char port)
|
||
(if native?
|
||
'ungexp-native-splicing
|
||
'ungexp-splicing))
|
||
(_
|
||
(if native?
|
||
'ungexp-native
|
||
'ungexp))))
|
||
|
||
(match (read port)
|
||
((? symbol? symbol)
|
||
(let ((str (symbol->string symbol)))
|
||
(match (string-index-right str #\:)
|
||
(#f
|
||
`(,unquote-symbol ,symbol))
|
||
(colon
|
||
(let ((name (string->symbol (substring str 0 colon)))
|
||
(output (substring str (+ colon 1))))
|
||
`(,unquote-symbol ,name ,output))))))
|
||
(x
|
||
`(,unquote-symbol ,x))))
|
||
|
||
(define (read-gexp chr port)
|
||
"Read a 'gexp' form from PORT."
|
||
`(gexp ,(read port)))
|
||
|
||
;; Extend the reader
|
||
(read-hash-extend #\~ read-gexp)
|
||
(read-hash-extend #\$ read-ungexp)
|
||
(read-hash-extend #\+ (cut read-ungexp <> <> #t)))
|
||
|
||
;;; gexp.scm ends here
|