* epa-file.el: Respect buffer-file-format when writing

* epa-file.el (epa-file-write-region): Encode the region according
to `buffer-file-format'.  Problem reported at:
<http://sourceforge.jp/ticket/browse.php?group_id=2267&tid=32917>.

1 files changed, 14 insertions, 3 deletions

diff --git a/lisp/epa-file.el b/lisp/epa-file.el
index eea458d200d..20d34f82223 100644
--- a/lisp/epa-file.el
+++ b/lisp/epa-file.el
@@ -211,7 +211,8 @@ encryption is used."
          (recipients
           (cond
            ((listp epa-file-encrypt-to) epa-file-encrypt-to)
-           ((stringp epa-file-encrypt-to) (list epa-file-encrypt-to)))))
+           ((stringp epa-file-encrypt-to) (list epa-file-encrypt-to))))
+         buffer)
     (epg-context-set-passphrase-callback
      context
      (cons #'epa-file-passphrase-callback-function
@@ -230,8 +231,18 @@ encryption is used."
                  (unless start
                    (setq start (point-min)
                          end (point-max)))
-                 (epa-file--encode-coding-string (buffer-substring start end)
-                                                 coding-system))
+                 (setq buffer (current-buffer))
+                 (with-temp-buffer
+                   (insert-buffer-substring buffer start end)
+                   ;; Translate the region according to
+                   ;; `buffer-file-format', as `write-region' would.
+                   ;; We can't simply do `write-region' (into a
+                   ;; temporary file) here, since it writes out
+                   ;; decrypted contents.
+                   (format-encode-buffer (with-current-buffer buffer
+                                           buffer-file-format))
+                   (epa-file--encode-coding-string (buffer-string)
+                                                   coding-system)))
                (if (or (eq epa-file-select-keys t)
                        (and (null epa-file-select-keys)
                             (not (local-variable-p 'epa-file-encrypt-to