From 7ad62ccef2446011dfbdfb2dbe8cc58f46fb05d8 Mon Sep 17 00:00:00 2001
From: Pierre Langlois <pierre.langlois@gmx.com>
Date: Sat, 2 Apr 2022 19:22:52 +0100
Subject: [PATCH] wip

---
 gnu/packages/tree-sitter.scm | 49 ++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 19 deletions(-)

diff --git a/gnu/packages/tree-sitter.scm b/gnu/packages/tree-sitter.scm
index 7e14ebd1e3..d6892db6e3 100644
--- a/gnu/packages/tree-sitter.scm
+++ b/gnu/packages/tree-sitter.scm
@@ -795,11 +795,11 @@ (define-public emacs-tree-sitter
 @end enumerate")
     (license license:expat)))

-(define (make-emacs-tree-sitter-langs-grammar-bundle version)
+(define emacs-tree-sitter-langs-grammar-bundle
   (package
     (name "emacs-tree-sitter-langs-grammar-bundle")
     (source #f)
-    (version version)
+    (version (package-version tree-sitter))
     (build-system trivial-build-system)
     (inputs
      ;; FIXME: Support for some languages is still left to package.
@@ -836,11 +836,7 @@ (define (make-emacs-tree-sitter-langs-grammar-bundle version)
                           (map (match-lambda
                                  ((name directory)
                                   (string-append directory "/lib/tree-sitter")))
-                               '#$(package-inputs this-package))))
-                  ;; The BUNDLE-VERSION file prevents emacs-tree-sitter-langs
-                  ;; from downloading libraries at load time.
-                  (call-with-output-file (string-append #$output "/BUNDLE-VERSION")
-                    (lambda (port) (display #$version port)))))))
+                               '#$(package-inputs this-package))))))))
     (synopsis #f)
     (description #f)
     (home-page #f)
@@ -861,7 +857,7 @@ (define-public emacs-tree-sitter-langs
                 "1p2zbb6ac7wi6x6zpbczcmpkb2p45md2csd2bj43d8s56ckzw5mp"))))
     (build-system emacs-build-system)
     (inputs
-     (list (make-emacs-tree-sitter-langs-grammar-bundle version)))
+     (list emacs-tree-sitter-langs-grammar-bundle))
     (propagated-inputs
      (list emacs-tree-sitter))
     (arguments
@@ -870,15 +866,36 @@ (define-public emacs-tree-sitter-langs
       #:test-command ''("script/test")
       #:phases
       #~(modify-phases %standard-phases
+          (add-after 'unpack 'disable-downloader
+            (lambda _
+              (call-with-output-file "tree-sitter-langs-build.el"
+                (lambda (port)
+                  (let ((on-load-message
+                         (string-append
+                          "tree-sitter-langs: Grammar bundle already installed "
+                          "via Guix.  Installing external grammars via this "
+                          "function isn't supported, if a language you need is "
+                          "missing please report a bug at bug-guix@gnu.org.")))
+                    (format
+                     port
+                     ";;;###autoload
+                      (defun tree-sitter-langs-install-grammars
+                             (&optional skip-if-installed version os
+                                        keep-bundle)
+                        (interactive)
+                        (message \"~a\"))
+                      (defconst tree-sitter-langs--queries-dir
+                        (file-name-as-directory
+                          (concat (file-name-directory (locate-library \"tree-sitter-langs.el\"))
+                                  \"queries\")))
+                      (defun tree-sitter-langs--bin-dir () \"~a\")
+                      (provide 'tree-sitter-langs-build)"
+                     on-load-message
+                     #$emacs-tree-sitter-langs-grammar-bundle))))))
           (add-after 'unpack 'remove-cask
             (lambda _
               (substitute* "script/test"
                 (("cask") ""))))
-          (add-before 'check 'bundle-for-testing
-            (lambda* (#:key inputs #:allow-other-keys)
-              (delete-file-recursively "bin")
-              (symlink #$(make-emacs-tree-sitter-langs-grammar-bundle version)
-                       "bin")))
           (add-before 'check 'patch-tree-sitter-require-test
             (lambda _
               (use-modules (ice-9 regex))
@@ -906,12 +923,6 @@ (define-public emacs-tree-sitter-langs
             (lambda _
               (delete-file-recursively "queries/hcl")
               (delete-file-recursively "queries/pgn")))
-          (add-before 'install 'install-bundle
-            (lambda _
-              (let ((elpa (elpa-directory #$output)))
-                (mkdir-p elpa)
-                (symlink #$(make-emacs-tree-sitter-langs-grammar-bundle version)
-                         (string-append elpa "/bin")))))
           (add-after 'install 'install-queries
             (lambda* (#:key outputs #:allow-other-keys)
               (let ((elpa (elpa-directory (assoc-ref outputs "out"))))
--
2.36.0