;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2018, 2019 Ludovic Courtès ;;; ;;; This file is part of GNU Guix. ;;; ;;; GNU 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. ;;; ;;; GNU 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 GNU Guix. If not, see . (define-module (guix build guile-build-system) #:use-module ((guix build gnu-build-system) #:prefix gnu:) #:use-module (guix build utils) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) #:use-module (ice-9 match) #:use-module (ice-9 popen) #:use-module (ice-9 rdelim) #:use-module (ice-9 regex) #:use-module (ice-9 format) #:use-module (guix build utils) #:export (target-guile-effective-version %standard-phases guile-build)) (define* (target-guile-effective-version #:optional guile) "Return the effective version of GUILE or whichever 'guile' is in $PATH. Return #false if it cannot be determined." (let* ((pipe (open-pipe* OPEN_READ (if guile (string-append guile "/bin/guile") "guile") "-c" "(display (effective-version))")) (line (read-line pipe))) (and (zero? (close-pipe pipe)) (string? line) line))) (define (file-sans-extension file) ;TODO: factorize "Return the substring of FILE without its extension, if any." (let ((dot (string-rindex file #\.))) (if dot (substring file 0 dot) file))) (define %scheme-file-regexp ;; Regexp to match Scheme files. "\\.(scm|sls)$") (define %documentation-file-regexp ;; Regexp to match README files and the likes. "^(README.*|.*\\.html|.*\\.org|.*\\.md)$") (define* (set-locale-path #:key inputs native-inputs #:allow-other-keys) "Set 'GUIX_LOCPATH'." (match (assoc-ref (or native-inputs inputs) "locales") (#f #t) (locales (setenv "GUIX_LOCPATH" (string-append locales "/lib/locale")) #t))) (define* (invoke-each commands #:key (max-processes (current-processor-count)) report-progress) "Run each command in COMMANDS in a separate process, using up to MAX-PROCESSES processes in parallel. Call REPORT-PROGRESS at each step. Raise an error if one of the processes exit with non-zero." (define total (length commands)) (define processes (make-hash-table)) (define (wait-for-one-process) (match (waitpid WAIT_ANY) ((pid . status) (let ((command (hashv-ref processes pid))) (hashv-remove! processes command) (unless (zero? (status:exit-val status)) (format (current-error-port) "process '~{~a ~}' failed with status ~a~%" command status) (exit 1)))))) (define (fork-and-run-command command) (match (primitive-fork) (0 (dynamic-wind (const #t) (lambda () (apply execlp command)) (lambda () (primitive-exit 127)))) (pid (hashv-set! processes pid command) #t))) (let loop ((commands commands) (running 0) (completed 0)) (match commands (() (or (zero? running) (let ((running (- running 1)) (completed (+ completed 1))) (wait-for-one-process) (report-progress total completed) (loop commands running completed)))) ((command . rest) (if (< running max-processes) (let ((running (+ 1 running))) (fork-and-run-command command) (loop rest running completed)) (let ((running (- running 1)) (completed (+ completed 1))) (wait-for-one-process) (report-progress total completed) (loop commands running completed))))))) (define* (report-build-progress total completed #:optional (log-port (current-error-port))) "Report that COMPLETED out of TOTAL files have been completed." (format log-port "[~2d/~2d] Compiling...~%" completed total) (force-output log-port)) (define* (build #:key outputs inputs native-inputs (source-directory ".") (compile-flags '()) (scheme-file-regexp %scheme-file-regexp) (not-compiled-file-regexp #f) target #:allow-other-keys) "Build files in SOURCE-DIRECTORY that match SCHEME-FILE-REGEXP. Files matching NOT-COMPILED-FILE-REGEXP, if true, are not compiled but are installed; this is useful for files that are meant to be included." (let* ((out (assoc-ref outputs "out")) (guile (assoc-ref (or native-inputs inputs) "guile")) (effective (target-guile-effective-version guile)) (module-dir (string-append out "/share/guile/site/" effective)) (go-dir (string-append out "/lib/guile/" effective "/site-ccache/")) (guild (string-append guile "/bin/guild")) (flags (if target (cons (string-append "--target=" target) compile-flags) compile-flags))) (if target (format #t "Cross-compiling for '~a' with Guile ~a...~%" target effective) (format #t "Compiling with Guile ~a...~%" effective)) (format #t "compile flags: ~s~%" flags) ;; Make installation directories. (mkdir-p module-dir) (mkdir-p go-dir) ;; Compile .scm files and install. (setenv "GUILE_AUTO_COMPILE" "0") (setenv "GUILE_LOAD_COMPILED_PATH" (string-append go-dir (match (getenv "GUILE_LOAD_COMPILED_PATH") (#f "") (path (string-append ":" path))))) (let ((source-files (with-directory-excursion source-directory (find-files "." scheme-file-regexp)))) (invoke-each (filter-map (lambda (file) (and (or (not not-compiled-file-regexp) (not (string-match not-compiled-file-regexp file))) (cons* guild "guild" "compile" "-L" source-directory "-o" (string-append go-dir (file-sans-extension file) ".go") (string-append source-directory "/" file) flags))) source-files) #:max-processes (parallel-job-count) #:report-progress report-build-progress) (for-each (lambda (file) (install-file (string-append source-directory "/" file) (string-append module-dir "/" (dirname file)))) source-files)) #t)) (define* (install-documentation #:key outputs (documentation-file-regexp %documentation-file-regexp) #:allow-other-keys) "Install files that mactch DOCUMENTATION-FILE-REGEXP." (let* ((out (assoc-ref outputs "out")) (doc (string-append out "/share/doc/" (strip-store-file-name out)))) (for-each (cut install-file <> doc) (find-files "." documentation-file-regexp)) #t)) (define %standard-phases (modify-phases gnu:%standard-phases (delete 'bootstrap) (delete 'configure) (add-before 'install-locale 'set-locale-path set-locale-path) (replace 'build build) (add-after 'build 'install-documentation install-documentation) (delete 'check) (delete 'strip) (delete 'validate-runpath) (delete 'install))) (define* (guile-build #:key (phases %standard-phases) #:allow-other-keys #:rest args) "Build the given Guile package, applying all of PHASES in order." (apply gnu:gnu-build #:phases phases args))