monads: Allow resolution of a monad's bind/return at expansion time. - guix

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author	Ludovic Courtès <ludo@gnu.org>	2013-10-02 21:58:19 +0200
committer	Ludovic Courtès <ludo@gnu.org>	2013-10-03 23:12:20 +0200
commit	aeb7ec5c9a67c9936b5d01d6e933cf4c282058d2 (patch)
tree	6fc9c9260879b5a359ff5f63668ff3db204c89fb /gnu/packages/attr.scm
parent	d9f0a23704a038640329fae6e2273e5813cdb8ab (diff)
download	guix-aeb7ec5c9a67c9936b5d01d6e933cf4c282058d2.tar.gz guix-aeb7ec5c9a67c9936b5d01d6e933cf4c282058d2.zip

monads: Allow resolution of a monad's bind/return at expansion time.

* guix/monads.scm (<monad>): Turn in a raw SRFI-9 record type. (define-monad): New macro. (with-monad): Add a case for when MONAD is a macro. (identity-return, identity-bind, store-return, store-bind): Inline. (%identity-monad, %store-monad): Use 'define-monad'. * tests/monads.scm ("monad?"): New test.

Diffstat (limited to 'gnu/packages/attr.scm')

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 <http://www.gnu.org/licenses/>.

(define-module (test-status)
  #:use-module (guix status)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-11)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs bytevectors)
  #:use-module (rnrs io ports)
  #:use-module (ice-9 match))

(test-begin "status")

(test-equal "compute-status, no-op"
  (build-status)
  (let-values (((port get-status)
                (build-event-output-port compute-status)))
    (display "foo\nbar\n\baz\n" port)
    (get-status)))

(test-equal "compute-status, builds + substitutes"
  (list (build-status
         (building (list (build "foo.drv" "x86_64-linux")))
         (downloading (list (download "bar" "http://example.org/bar"
                                      #:size 500
                                      #:start 'now))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux")))
         (downloading (list (download "bar" "http://example.org/bar"
                                      #:size 500
                                      #:transferred 42
                                      #:start 'now))))
        (build-status
         (builds-completed (list (build "foo.drv" "x86_64-linux")))
         (downloads-completed (list (download "bar" "http://example.org/bar"
                                              #:size 500
                                              #:transferred 500
                                              #:start 'now
                                              #:end 'now)))))
  (let-values (((port get-status)
                (build-event-output-port (lambda (event status)
                                           (compute-status event status
                                                           #:current-time
                                                           (const 'now))))))
    (display "@ build-started foo.drv - x86_64-linux \n" port)
    (display "@ substituter-started bar\n" port)
    (display "@ download-started bar http://example.org/bar 500\n" port)
    (display "various\nthings\nget\nwritten\n" port)
    (let ((first (get-status)))
      (display "@ download-progress bar http://example.org/bar 500 42\n"
               port)
      (let ((second (get-status)))
        (display "@ download-progress bar http://example.org/bar 500 84\n"
                 port)
        (display "@ build-succeeded foo.drv\n" port)
        (display "@ download-succeeded bar http://example.org/bar 500\n" port)
        (display "Almost done!\n" port)
        (display "@ substituter-succeeded bar\n" port)
        (list first second (get-status))))))

(test-equal "compute-status, missing events"
  (list (build-status
         (building (list (build "foo.drv" "x86_64-linux"
                                #:log-file "foo.log")))
         (downloading (list (download "baz" "http://example.org/baz"
                                      #:size 500
                                      #:transferred 42
                                      #:start 'now)
                            (download "bar" "http://example.org/bar"
                                      #:size 999
                                      #:transferred 0
                                      #:start 'now))))
        (build-status
         (builds-completed (list (build "foo.drv" "x86_64-linux"
                                        #:log-file "foo.log")))
         (downloads-completed (list (download "baz" "http://example.org/baz"
                                              #:size 500
                                              #:transferred 500
                                              #:start 'now
                                              #:end 'now)
                                    (download "bar" "http://example.org/bar"
                                              #:size 999
                                              #:transferred 999
                                              #:start 'now
                                              #:end 'now)))))
  ;; Below we omit 'substituter-started' events and the like.
  (let-values (((port get-status)
                (build-event-output-port (lambda (event status)
                                           (compute-status event status
                                                           #:current-time
                                                           (const 'now))))))
    (display "@ build-started foo.drv - x86_64-linux foo.log\n" port)
    (display "@ download-started bar http://example.org/bar 999\n" port)
    (display "various\nthings\nget\nwritten\n" port)
    (display "@ download-progress baz http://example.org/baz 500 42\n"
             port)
    (let ((first (get-status)))
      (display "@ build-succeeded foo.drv\n" port)
      (display "@ download-succeeded bar http://example.org/bar 999\n" port)
      (display "Almost done!\n" port)
      (display "@ substituter-succeeded baz\n" port)
      (list first (get-status)))))

(test-equal "build-output-port, UTF-8"
  '((build-log #f "lambda is λ!\n"))
  (let-values (((port get-status) (build-event-output-port cons '()))
               ((bv)              (string->utf8 "lambda is λ!\n")))
    (put-bytevector port bv)
    (force-output port)
    (get-status)))

(test-equal "current-build-output-port, UTF-8 + garbage"
  ;; What about a mixture of UTF-8 + garbage?
  (let ((replacement "�"))
    `((build-log #f ,(string-append "garbage: " replacement "lambda: λ\n"))))
  (let-values (((port get-status) (build-event-output-port cons '())))
    (display "garbage: " port)
    (put-bytevector port #vu8(128))
    (put-bytevector port (string->utf8 "lambda: λ\n"))
    (force-output port)
    (get-status)))

(test-equal "compute-status, multiplexed build output"
  (list (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121)))
         (downloading (list (download "bar" "http://example.org/bar"
                                      #:size 999
                                      #:start 'now))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121)))
         (downloading (list (download "bar" "http://example.org/bar"
                                      #:size 999
                                      #:transferred 42
                                      #:start 'now))))
        (build-status
         ;; "bar" is now only listed as a download.
         (builds-completed (list (build "foo.drv" "x86_64-linux" #:id 121)))
         (downloads-completed (list (download "bar" "http://example.org/bar"
                                              #:size 999
                                              #:transferred 999
                                              #:start 'now
                                              #:end 'now)))))
  (let-values (((port get-status)
                (build-event-output-port (lambda (event status)
                                           (compute-status event status
                                                           #:current-time
                                                           (const 'now)
                                                           #:derivation-path->output-path
                                                           (match-lambda
                                                             ("bar.drv" "bar")))))))
    (display "@ build-started foo.drv - x86_64-linux  121\n" port)
    (display "@ build-started bar.drv - armhf-linux bar.log 144\n" port)
    (display "@ build-log 121 6\nHello!" port)
    (display "@ build-log 144 50
@ download-started bar http://example.org/bar 999\n" port)
    (let ((first (get-status)))
      (display "@ build-log 121 30\n@ build-started FAKE!.drv 555\n")
      (display "@ build-log 144 54
@ download-progress bar http://example.org/bar 999 42\n"
               port)
      (let ((second (get-status)))
        (display "@ download-succeeded bar http://example.org/bar 999\n" port)
        (display "@ build-succeeded foo.drv\n" port)
        (display "@ build-succeeded bar.drv\n" port)
        (list first second (get-status))))))

(test-equal "compute-status, build completion"
  (list (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121
                                #:completion 0.))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121
                                #:completion 50.))))
        (build-status
         (builds-completed (list (build "foo.drv" "x86_64-linux" #:id 121
                                        #:completion 100.)))))
  (let-values (((port get-status)
                (build-event-output-port (lambda (event status)
                                           (compute-status event status
                                                           #:current-time
                                                           (const 'now))))))
    (display "@ build-started foo.drv - x86_64-linux  121\n" port)
    (display "@ build-log 121 6\nHello!" port)
    (let ((first (get-status)))
      (display "@ build-log 121 20\n[ 0/100] building X\n" port)
      (display "@ build-log 121 6\nHello!" port)
      (let ((second (get-status)))
        (display "@ build-log 121 20\n[50/100] building Y\n" port)
        (display "@ build-log 121 6\nHello!" port)
        (let ((third (get-status)))
          (display "@ build-log 121 21\n[100/100] building Z\n" port)
          (display "@ build-log 121 6\nHello!" port)
          (display "@ build-succeeded foo.drv\n" port)
          (list first second third (get-status)))))))

(test-equal "compute-status, build phase"
  (list (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121
                                #:phase 'configure))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121
                                #:phase 'configure
                                #:completion 50.))))
        (build-status
         (building (list (build "foo.drv" "x86_64-linux" #:id 121
                                #:phase 'install))))
        (build-status
         (builds-completed (list (build "foo.drv" "x86_64-linux" #:id 121
                                        #:phase 'install)))))
  (let-values (((port get-status)
                (build-event-output-port (lambda (event status)
                                           (compute-status event status
                                                           #:current-time
                                                           (const 'now))))))
    (display "@ build-started foo.drv - x86_64-linux  121\n" port)
    (display "@ build-log 121 27\nstarting phase `configure'\n" port)
    (display "@ build-log 121 6\nabcde!" port)
    (let ((first (get-status)))
      (display "@ build-log 121 20\n[50/100] building Y\n" port)
      (display "@ build-log 121 6\nfghik!" port)
      (let ((second (get-status)))
        (display "@ build-log 121 21\n[100/100] building Z\n" port)
        (display "@ build-log 121 25\nstarting phase `install'\n" port)
        (display "@ build-log 121 6\nlmnop!" port)
        (let ((third (get-status)))
          (display "@ build-succeeded foo.drv\n" port)
          (list first second third (get-status)))))))

(test-end "status")


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