mirror of https://notabug.org/mthl/cuirass.git
177 lines
6.8 KiB
Scheme
177 lines
6.8 KiB
Scheme
;;; base.scm -- Cuirass base module
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;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
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;;;
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;;; This file is part of Cuirass.
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;;;
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;;; Cuirass is free software: you can redistribute it and/or modify
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;;; it 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
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;;; (at your option) any later version.
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;;;
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;;; Cuirass is distributed in the hope that it will be useful,
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;;; but 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 Cuirass. If not, see <http://www.gnu.org/licenses/>.
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(define-module (cuirass base)
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#:use-module (cuirass database)
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#:use-module (cuirass utils)
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#:use-module (guix derivations)
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#:use-module (guix store)
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#:use-module (ice-9 format)
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#:use-module (ice-9 popen)
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#:use-module (ice-9 rdelim)
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#:use-module (srfi srfi-19)
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#:export (;; Procedures.
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call-with-time-display
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fetch-repository
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compile
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evaluate
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build-packages
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process-specs
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;; Parameters.
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%package-cachedir
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%use-substitutes?))
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(define %use-substitutes?
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;; Define whether to use substitutes
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(make-parameter #f))
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(define %package-cachedir
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;; Define to location of cache directory of this package.
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(make-parameter (or (getenv "CUIRASS_CACHEDIR")
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(string-append (or (getenv "HOME") ".")
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"/.cache/cuirass"))
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(λ (val)
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(if (string? val)
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val
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(scm-error 'wrong-type-arg
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"%package-cachedir" "Not a string: ~S" (list #f) #f)))))
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(define (call-with-time thunk kont)
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"Call THUNK and pass KONT the elapsed time followed by THUNK's return
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values."
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(let* ((start (current-time time-monotonic))
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(result (call-with-values thunk list))
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(end (current-time time-monotonic)))
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(apply kont (time-difference end start) result)))
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(define (call-with-time-display thunk)
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"Call THUNK and write to the current output port its duration."
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(call-with-time thunk
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(λ (time result)
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(let ((duration (+ (time-second time)
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(/ (time-nanosecond time) 1e9))))
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(format (current-error-port) "evaluate '~A': ~,3f seconds~%"
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(assq-ref result #:job-name)
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duration)
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(acons #:duration duration result)))))
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(define (fetch-repository spec)
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"Get the latest version of repository specified in SPEC. Clone repository
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if required."
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(define (current-commit)
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(let* ((pipe (open-input-pipe "git log -n1"))
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(log (read-string pipe))
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(commit (cadr (string-split log char-set:whitespace))))
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(close-pipe pipe)
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commit))
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(let ((cachedir (%package-cachedir)))
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(or (file-exists? cachedir) (mkdir-p cachedir))
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(with-directory-excursion cachedir
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(let ((name (assq-ref spec #:name))
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(url (assq-ref spec #:url))
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(branch (assq-ref spec #:branch))
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(commit (assq-ref spec #:commit))
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(tag (assq-ref spec #:tag)))
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(or (file-exists? name) (system* "git" "clone" url name))
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(with-directory-excursion name
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(and (zero? (system* "git" "fetch"))
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(zero? (system* "git" "reset" "--hard"
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(or tag
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commit
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(string-append "origin/" branch))))
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(current-commit)))))))
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(define (compile dir)
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;; Required for fetching Guix bootstrap tarballs.
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"Compile files in repository in directory DIR."
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(with-directory-excursion dir
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(or (file-exists? "configure") (system* "./bootstrap"))
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(or (file-exists? "Makefile")
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(system* "./configure" "--localstatedir=/var"))
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(zero? (system* "make" "-j" (number->string (current-processor-count))))))
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(define (evaluate store db spec)
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"Evaluate and build package derivations. Return a list of jobs."
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(let* ((port (open-pipe* OPEN_READ
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"evaluate"
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(string-append (%package-cachedir) "/"
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(assq-ref spec #:name) "/"
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(assq-ref spec #:load-path))
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(%package-cachedir)
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(object->string spec)
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(%package-database)))
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(jobs (read port)))
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(close-pipe port)
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jobs))
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(define (build-packages store db jobs)
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"Build JOBS and return a list of Build results."
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(define (build job)
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(let* ((name (assq-ref job #:job-name))
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(drv (assq-ref job #:derivation))
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(eval-id (assq-ref job #:eval-id))
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(success? #t)
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(error-log (string-append (%package-cachedir) "/"
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name ".log")))
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(simple-format #t "building ~A...\n" drv)
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(let ((log (call-with-output-string
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(λ (port)
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(parameterize ((current-build-output-port port))
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(catch 'srfi-34
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(λ ()
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(build-derivations store (list drv)))
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(λ (key . args)
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(set! success? #f)
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(pk "kets key:" key "args:" args))))))))
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(when (not success?)
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(with-output-to-file error-log
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(λ () (display log)))
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(simple-format #t "build failed: ~a\n" error-log))
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(let* ((output (and success? (derivation-path->output-path drv)))
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(log (if success? (log-file store output) error-log))
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(build `((#:derivation . ,drv)
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(#:eval-id . ,eval-id)
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(#:log . ,log)
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(#:output . ,output))))
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(db-add-build db build)
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(simple-format #t "~A\n" output)
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build))))
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(map build jobs))
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(define (process-specs db jobspecs)
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"Evaluate and build JOBSPECS and store results in DB."
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(define (process spec)
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(let ((commit (fetch-repository spec))
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(stamp (db-get-stamp db spec)))
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(unless (string=? commit stamp)
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(unless (assq-ref spec #:no-compile?)
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(compile (string-append (%package-cachedir) "/"
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(assq-ref spec #:name))))
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(with-store store
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(let* ((spec* (acons #:current-commit commit spec))
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(jobs (evaluate store db spec*)))
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(unless (%use-substitutes?)
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(set-build-options store #:use-substitutes? #f))
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(build-packages store db jobs))))
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(db-add-stamp db spec commit)))
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(for-each process jobspecs))
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