From 89cbec89a57c2e10042a19c298c8c000e6bce13b Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Wed, 13 Apr 2016 19:18:03 +0200 Subject: hydra: Add 'hydra-jobs.scm' target to compute the Hydra jobs. * build-aux/hydra/evaluate.scm: New file. * Makefile.am (EXTRA_DIST): Add it. --- build-aux/hydra/evaluate.scm | 98 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 build-aux/hydra/evaluate.scm (limited to 'build-aux') diff --git a/build-aux/hydra/evaluate.scm b/build-aux/hydra/evaluate.scm new file mode 100644 index 0000000000..afc7730ff2 --- /dev/null +++ b/build-aux/hydra/evaluate.scm @@ -0,0 +1,98 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2016 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 . + +;;; This program replicates the behavior of Hydra's 'hydra-eval-guile-job'. +;;; It evaluates the Hydra job defined by the program passed as its first +;;; arguments and outputs an sexp of the jobs on standard output. + +(use-modules (guix store) + (srfi srfi-19) + (ice-9 match) + (ice-9 pretty-print) + (ice-9 format)) + +(define %user-module + ;; Hydra user module. + (let ((m (make-module))) + (beautify-user-module! m) + m)) + +(define (call-with-time thunk kont) + "Call THUNK and pass KONT the elapsed time followed by THUNK's return +values." + (let* ((start (current-time time-monotonic)) + (result (call-with-values thunk list)) + (end (current-time time-monotonic))) + (apply kont (time-difference end start) result))) + +(define (call-with-time-display thunk) + "Call THUNK and write to the current output port its duration." + (call-with-time thunk + (lambda (time . results) + (format #t "~,3f seconds~%" + (+ (time-second time) + (/ (time-nanosecond time) 1e9))) + (apply values results)))) + + +;; Without further ado... +(match (command-line) + ((command file) + ;; Load FILE, a Scheme file that defines Hydra jobs. + (let ((port (current-output-port))) + (save-module-excursion + (lambda () + (set-current-module %user-module) + (primitive-load file))) + + (with-store store + ;; Make sure we don't resort to substitutes. + (set-build-options store + #:use-substitutes? #f + #:substitute-urls '()) + + ;; Grafts can trigger early builds. We do not want that to happen + ;; during evaluation, so use a sledgehammer to catch such problems. + (set! build-things + (lambda (store . args) + (format (current-error-port) + "error: trying to build things during evaluation!~%") + (format (current-error-port) + "'build-things' arguments: ~s~%" args) + (exit 1))) + + ;; Call the entry point of FILE and print the resulting job sexp. + (pretty-print + (match ((module-ref %user-module 'hydra-jobs) store '()) + (((names . thunks) ...) + (map (lambda (job thunk) + (format (current-error-port) "evaluating '~a'... " job) + (force-output (current-error-port)) + (cons job (call-with-time-display thunk))) + names thunks))) + port)))) + ((command _ ...) + (format (current-error-port) "Usage: ~a FILE +Evaluate the Hydra jobs defined in FILE.~%" + command) + (exit 1))) + +;;; Local Variables: +;;; eval: (put 'call-with-time 'scheme-indent-function 1) +;;; End: + -- cgit v1.2.3