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;; kenku --- crawl and reproduce github actions
;; Copyright © 2026 bdunahu <bdunahu@operationnull.com>
;;
;; This program 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.
;;
;; This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.

(define-module (src build-actions)
  #:use-module (srfi srfi-1)
  #:use-module (guix scripts environment)
  #:use-module ((src utils) #:prefix util:)
  #:use-module ((src config) #:prefix conf:)
  #:use-module ((ice-9 rdelim))
  #:use-module ((src crawl-lockfiles) #:prefix lock:)
  #:export (build-actions))

(define (make-in-vicinity dir f)
  (let ((dir (in-vicinity dir f)))
    (util:mkdir-p dir)
    dir))

(define (build-actions)
  (let* ((build-action-sh (in-vicinity conf:scripts-dir "build-action.sh"))
         (time (strftime "%Y-%m-%d_%H-%M-%S" (localtime (current-time))))
         (dir (string-append conf:cache-dir "/build-" time))
         (bf (make-in-vicinity dir "build-failures"))
         (ma (make-in-vicinity dir "missing-artifact"))
         (mr (make-in-vicinity dir "maybe-reproducible"))
         (r (make-in-vicinity dir "reproducible"))
         (packages '("bash"
                     "coreutils"
                     "diffoscope"
                     "dos2unix"
                     "findutils"
                     "gawk"
                     "git"
                     "grep"
                     "node"
                     "nss-certs"
                     "python"
                     "sed"
                     "xxd"
                     "diffutils"))
         (opts '("--network" "--emulate-fhs" "--container"
                 "--preserve='^TERM$'")) ;diffoscope needs this
         (cmd `("--" "bash" ,build-action-sh
                "~a" "~a" "./~a" "~a" "~a" "~a" "~a")))
    (call-with-input-file lock:npm-file
      (lambda (port)
        (let loop ()
          (let ((line (read-line port)))
            (unless (eof-object? line)
              (let* ((list (string-split line char-set:whitespace))
                     (repo (car list))
                     (sha (cadr list))
                     (lock-dir (dirname (caddr list))))
                (format #t "Starting build of ~a@~a~%" repo sha)
                (system (format #f (string-join (append '("guix" "shell")
                                                        opts
                                                        packages
                                                        cmd)
                                                " ")
                                 repo sha lock-dir bf ma mr r)))
              (loop))))))
    (format #t "Done! Check ~a.~%" dir)))