gpg-interface: allow use of a custom GPG binaryjc/signed-commit

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/config.txt b/Documentation/config.txt
index b30c7e6278..094c1c9de3 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1094,6 +1094,17 @@ grep.lineNumber::
 grep.extendedRegexp::
 	If set to true, enable '--extended-regexp' option by default.
 
+gpg.program::
+	Use this custom program instead of "gpg" found on $PATH when
+	making or verifying a PGP signature. The program must support the
+	same command line interface as GPG, namely, to verify a detached
+	signature, "gpg --verify $file - <$signature" is run, and the
+	program is expected to signal a good signature by exiting with
+	code 0, and to generate an ascii-armored detached signature, the
+	standard input of "gpg -bsau $key" is fed with the contents to be
+	signed, and the program is expected to send the result to its
+	standard output.
+
 gui.commitmsgwidth::
 	Defines how wide the commit message window is in the
 	linkgit:git-gui[1]. "75" is the default.