branch: elpa/nix-mode
commit 295cd6729b16797b0e1a133943a70fbe6f7254c4
Author: Matthew Bauer <[email protected]>
Commit: Matthew Bauer <[email protected]>
Add nix-edit.el
---
nix-edit.el | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/nix-edit.el b/nix-edit.el
new file mode 100644
index 0000000000..3e5c255f34
--- /dev/null
+++ b/nix-edit.el
@@ -0,0 +1,37 @@
+;;; nix-edit.el -- run nix commands in Emacs -*- lexical-binding: t -*-
+
+;; Author: Matthew Bauer <[email protected]>
+;; Homepage: https://github.com/NixOS/nix-mode
+;; Keywords: nix
+
+;; This file is NOT part of GNU Emacs.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'nix)
+(require 'nix-search)
+
+(defun nix-edit (&optional file attr)
+ "Open the nix log.
+FILE the nix file to load from.
+ATTR the attribute to find in nix expressions."
+ (interactive (list (nix-read-file) nil))
+ (unless attr (setq attr (nix-read-attr file)))
+
+ (let ((stdout (generate-new-buffer "nix-edit"))
+ (process-environment (cons "EDITOR=echo" process-environment))
+ result)
+ (call-process nix-executable nil (list stdout nil) nil
+ "edit" "-f" file attr)
+ (with-current-buffer stdout
+ (when (eq (buffer-size) 0)
+ (error
+ "Error: nix edit failed to produce any output"))
+ (setq result (substring (buffer-string) 0 (- (buffer-size) 1))))
+ (kill-buffer stdout)
+ (find-file result)))
+
+(provide 'nix-edit)
+;;; nix-edit.el ends here
