Error when nightly toolchain is not available.

brotzeit · Jul 10, 2021 · 524923e · 524923e
1 parent 34f0ef7
commit 524923e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/rustic-rustfmt.el b/rustic-rustfmt.el
@@ -207,6 +207,8 @@ This operation requires a nightly version of rustfmt.
               (eq major-mode 'rustic-macro-expansion-mode))
     (error "Not a rustic-mode buffer."))
   (if (not (region-active-p)) (rustic-format-buffer)
+    (unless (equal (call-process "cargo" nil nil nil "+nightly") 0)
+      (error "Need nightly toolchain to format region."))
     (let* ((buf (current-buffer))
            (file (buffer-file-name buf)))
       (let ((start (+ 1 (count-lines 1 begin)))