From 699b6fd0b4279170ed62af13af549c7ec188af12 Mon Sep 17 00:00:00 2001
From: Timo Wilken
Date: Tue, 22 Nov 2022 00:12:36 +0100
Subject: Track custom Emacs packages in guix home

---
 emacs-packages/actionlint.el | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 emacs-packages/actionlint.el

(limited to 'emacs-packages/actionlint.el')

diff --git a/emacs-packages/actionlint.el b/emacs-packages/actionlint.el
new file mode 100644
index 00000000..3c37e34b
--- /dev/null
+++ b/emacs-packages/actionlint.el
@@ -0,0 +1,34 @@
+;;; actionlint.el --- Flycheck checker for GitHub Actions.
+;;; Commentary:
+;; GitHub Actions are defined using mostly plain YAML files.
+;; Actionlint is a linter catching GitHub Action-specific mistakes, and also
+;; checks Shell and Python code embedded in Actions (using shellcheck and
+;; pyflakes, respectively).
+;;; Code:
+
+(require 'flycheck)
+
+(defun actionlint-github-workflow-p ()
+  "Does the current buffer contain a GitHub Action?"
+  (string-match-p "\\.github/workflows/[^/]+\\.yml\\'" (buffer-file-name)))
+
+(flycheck-def-executable-var actionlint "actionlint")
+
+(flycheck-define-checker actionlint
+  "A syntax checker and linter for alidist recipes."
+  ;; `flycheck-alidist-executable' automatically overrides the car of the
+  ;; :command list if set and non-nil.
+  :command ("actionlint" "-no-color" "-oneline" source)
+  :error-patterns
+  ((error line-start (file-name) ":" line ":" column ": " (message)
+          " [" (id (minimal-match (one-or-more not-newline))) "]" line-end))
+  ;; Only enable this in actual GitHub Actions, not just any YAML document.
+  :modes (yaml-mode)
+  :predicate actionlint-github-workflow-p
+  ;; Also check the document with YAML checkers, whether or not we have errors.
+  :next-checkers (yaml-ruby yaml-yamllint))
+
+(add-to-list 'flycheck-checkers 'actionlint)
+
+(provide 'actionlint)
+;;; actionlint.el ends here
-- 
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