;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012-2021 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/>.

(unsetenv "http_proxy")

(define-module (test-derivations)
  #:use-module (guix derivations)
  #:use-module (guix grafts)
  #:use-module (guix store)
  #:use-module (guix utils)
  #:use-module ((gcrypt hash) #:prefix gcrypt:)
  #:use-module (guix base32)
  #:use-module (guix tests)
  #:use-module (guix tests http)
  #:use-module ((guix packages) #:select (package-derivation base32))
  #:use-module ((guix build utils) #:select (executable-file?))
  #:use-module (gnu packages bootstrap)
  #:use-module ((gnu packages guile) #:select (guile-1.8))
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-11)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-34)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs io ports)
  #:use-module (rnrs bytevectors)
  #:use-module (web uri)
  #:use-module (ice-9 rdelim)
  #:use-module (ice-9 regex)
  #:use-module (ice-9 ftw)
  #:use-module (ice-9 match))

(define %store
  (open-connection-for-tests))

;; Globally disable grafts because they can trigger early builds.
(%graft? #f)

(define (bootstrap-binary name)
  (let ((bin (search-bootstrap-binary name (%current-system))))
    (and %store
         (add-to-store %store name #t "sha256" bin))))

(define %bash
  (bootstrap-binary "bash"))
(define %mkdir
  (bootstrap-binary "mkdir"))

(define* (directory-contents dir #:optional (slurp get-bytevector-all))
  "Return an alist representing the contents of DIR."
  (define prefix-len (string-length dir))
  (sort (file-system-fold (const #t)                   ; enter?
                          (lambda (path stat result)   ; leaf
                            (alist-cons (string-drop path prefix-len)
                                        (call-with-input-file path slurp)
                                        result))
                          (lambda (path stat result) result)      ; down
                          (lambda (path stat result) result)      ; up
                          (lambda (path stat result) result)      ; skip
                          (lambda (path stat errno result) result) ; error
                          '()
                          dir)
        (lambda (e1 e2)
          (string<? (car e1) (car e2)))))


(test-begin "derivations")

(test-assert "parse & export"
  (let* ((f  (search-path %load-path "tests/test.drv"))
         (b1 (call-with-input-file f get-bytevector-all))
         (d1 (read-derivation (open-bytevector-input-port b1)
                              identity))
         (b2 (call-with-bytevector-output-port (cut write-derivation d1 <>)))
         (d2 (read-derivation (open-bytevector-input-port b2)
                              identity)))
    (and (equal? b1 b2)
         (equal? d1 d2))))

(test-skip (if %store 0 12))

(test-assert "add-to-store, flat"
  ;; Use 'readlink*' in case spec.scm is a symlink, as is the case when Guile
  ;; was installed with Stow.
  (let* ((file (readlink*
                (search-path %load-path "language/tree-il/spec.scm")))
         (drv  (add-to-store %store "flat-test" #f "sha256" file)))
    (and (eq? 'regular (stat:type (stat drv)))
         (valid-path? %store drv)
         (equal? (call-with-input-file file get-bytevector-all)
                 (call-with-input-file drv get-bytevector-all)))))

(test-assert "add-to-store, recursive"
  (let* ((dir (dirname
               (readlink* (search-path %load-path
                                       "language/tree-il/spec.scm"))))
         (drv (add-to-store %store "dir-tree-test" #t "sha256" dir)))
    (and (eq? 'directory (stat:type (stat drv)))
         (valid-path? %store drv)
         (equal? (directory-contents dir)
                 (directory-contents drv)))))

(test-assert "derivation with no inputs"
  (let* ((builder  (add-text-to-store %store "my-builder.sh"
                                      "echo hello, world\n"
                                      '()))
         (drv      (derivation %store "foo"
                               %bash `("-e" ,builder)
                               #:env-vars '(("HOME" . "/homeless")))))
    (and (store-path? (derivation-file-name drv))
         (valid-path? %store (derivation-file-name drv)))))

(test-assert "build derivation with 1 source"
  (let* ((builder (add-text-to-store %store "my-builder.sh"
                                     "echo