[PATCH 3/3] RFC: batch-tools.el

[Tomi Ollila]

---

emacs -q -batch -l ../contrib/batch-tools.el -f batch-whitespace-cleanup \
	with-indent *.el

was used to produce previous patch

 emacs/batch-tools.el |   37 +++++++++++++++++++++++++++++++++++++
 1 files changed, 37 insertions(+), 0 deletions(-)
 create mode 100644 emacs/batch-tools.el

diff --git a/emacs/batch-tools.el b/emacs/batch-tools.el
new file mode 100644
index 0000000..e83f825
--- /dev/null
+++ b/contrib/batch-tools.el
@@ -0,0 +1,37 @@
+;;
+;; Use this code to clean whitespace in (and optionally reindent) files
+;;
+;; Usage: emacs -q -batch -l batch-tools.el \
+;;	-f batch-whitespace-cleanup [with-indent] files...
+
+;; Borrows code fron batch-byte-compile. License: GPL3+
+
+(defun batch-whitespace-cleanup ()
+  "Run 'whitespace-cleanup' on the files remaining on the command line.
+If first arg is 'with-indent' do indent-region over the whole file too.
+Use this from the command line, with `-batch';
+it won't work in an interactive Emacs."
+  ;; command-line-args-left is what is left of the command line (from startup.el)
+  ;;  (defvar command-line-args-left)       ;Avoid 'free variable' warning
+  (if (not noninteractive)
+      (error "'batch-whitespace-cleanup' is to be used only with -batch"))
+  (let (filename do-indent)
+    (if (string= (car command-line-args-left) "with-indent")
+	(setq do-indent t
+	      command-line-args-left (cdr command-line-args-left)))
+    (while command-line-args-left
+      (setq filename (expand-file-name (car command-line-args-left))
+	    command-line-args-left (cdr command-line-args-left))
+      (if (file-directory-p filename)
+	  ;; Directory as argument.
+	  (message (concat "Skipping directory '" filename "'"))
+	;; Specific file argument
+	(if (file-exists-p filename)
+	    (with-temp-buffer
+	      (message (concat "Loading file " filename "..."))
+	      (find-file filename)
+	      (whitespace-cleanup)
+	      (if do-indent
+		  (indent-region (point-min) (point-max)))
+	      (save-buffer))
+	  (message (concat "Skipping nonexisteng file '" filename "'")))))))
-- 
1.7.6.4