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-rw-r--r--lisp/epg-config.el21
1 files changed, 21 insertions, 0 deletions
diff --git a/lisp/epg-config.el b/lisp/epg-config.el
index bf9360cdb4f..9d9bd7101e1 100644
--- a/lisp/epg-config.el
+++ b/lisp/epg-config.el
@@ -69,6 +69,27 @@ instead use \\[customize] (see the info node `Easy Customization')."
"Coding system to use with messages from `epg-gpg-program'."
:type 'symbol)
+
+;; In the doc string below, we say "symbol `error'" to avoid producing
+;; a hyperlink for `error' the function.
+(defcustom epg-pinentry-mode nil
+ "The pinentry mode.
+
+GnuPG 2.1 or later has an option to control the behavior of
+Pinentry invocation. The value should be the symbol `error',
+`ask', `cancel', or `loopback'. See the GnuPG manual for the
+meanings.
+
+A particularly useful mode is `loopback', which redirects all
+Pinentry queries to the caller, so Emacs can query passphrase
+through the minibuffer, instead of external Pinentry program."
+ :type '(choice (const nil)
+ (const ask)
+ (const cancel)
+ (const error)
+ (const loopback))
+ :version "27.1")
+
(defcustom epg-debug nil
"If non-nil, debug output goes to the \" *epg-debug*\" buffer.
Note that the buffer name starts with a space."