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diff --git a/src/crawl-actions-wrapper.scm b/src/crawl-actions-wrapper.scm
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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 crawl-actions-wrapper)
+  #:use-module (srfi srfi-1)
+  #:use-module (ice-9 string-fun)
+  #:use-module ((src utils) #:prefix util:)
+  #:use-module ((src config) #:prefix conf:)
+  #:use-module (ice-9 textual-ports)
+  #:use-module ((src poll-repos) #:prefix poll:)
+  #:export (crawl-actions
+            external-file))
+
+(define mapdir (dirname poll:outfile))
+(define mapfile (in-vicinity mapdir "repos-to-actions-map.txt"))
+(define actiondir (in-vicinity conf:cache-dir "actions"))
+(define external-file (in-vicinity actiondir "external.txt"))
+(define docker-file (in-vicinity actiondir "docker.txt"))
+(define file->regex `((,external-file .
+                       "^[A-Za-z0-9][A-Za-z0-9_.-]*(/[A-Za-z0-9_.-]+)*(\\s(\\S+))?$")
+                      (,docker-file . "^docker://")
+                      (,(in-vicinity actiondir "internal.txt") .
+                       "^\\./[A-Za-z0-9_./-]+(\\s(\\S+))?$")))
+
+(define (get-uniq-actions str)
+  (define (kill-comments str)
+    (let ((pos (string-index str #\#)))
+      (if pos (substring str 0 pos) str)))
+ (let* ((lines (filter (lambda (s) (not (string=? s "")))
+                       (string-split str #\newline)))
+         (lines (map kill-comments lines))
+         (actions (map (lambda (l) (cadr (string-split
+                                     l char-set:whitespace)))
+                       lines))
+         (uniq-actions (delete-duplicates actions)))
+    (map (lambda (a) (string-replace-substring a "@" " "))
+         uniq-actions)))
+
+(define (crawl-actions)
+  (let* ((repos-to-actions-map-sh (in-vicinity conf:scripts-dir
+                                               "repos_to_actions_map.sh")))
+    (system (string-append repos-to-actions-map-sh " < "
+                           poll:outfile " >> " mapfile))) ;append mode
+  ;; again, we do this separately after writing everything to another file
+  ;; github can cut me off at any time. I would prefer the choice of
+  ;; restarting again with a manually modified input file than lose all data.
+  (util:normalize-file mapfile)
+  (util:filter-actions-on-regex mapfile file->regex get-uniq-actions))