From 2bc437df229865456a77fbb982e187aa69304e98 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 19 Dec 2016 03:11:14 +0100
Subject: Add extensions

---
 man/pass.1            | 15 +++++++++++++--
 src/password-store.sh | 15 ++++++++++++++-
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/man/pass.1 b/man/pass.1
index 79ea79d..db3158e 100644
--- a/man/pass.1
+++ b/man/pass.1
@@ -30,8 +30,12 @@ If no COMMAND is specified, COMMAND defaults to either
 .B show
 or
 .BR ls ,
-depending on the type of specifier in ARGS. Otherwise COMMAND must be one of
-the valid commands listed below.
+depending on the type of specifier in ARGS. Alternatively, if the file
+\fI.extensions/COMMAND.bash\fP exists inside the password store and is executable
+, then it is sourced into the environment, passing any arguments and environment
+variables.
+
+Otherwise COMMAND must be one of the valid commands listed below.
 
 Several of the commands below rely on or provide additional functionality if
 the password store directory is also a git repository. If the password store
@@ -385,6 +389,9 @@ Contains the default gpg key identification used for encryption and decryption.
 Multiple gpg keys may be specified in this file, one per line. If this file
 exists in any sub directories, passwords inside those sub directories are
 encrypted using those keys. This should be set using the \fBinit\fP command.
+.TP
+.B ~/.password-store/.extensions
+The directory containing extension files.
 
 .SH ENVIRONMENT VARIABLES
 
@@ -434,6 +441,10 @@ by \fBtr\fP. See
 .BR tr (1)
 for more info.
 .TP
+.I PASSWORD_STORE_EXTENSION_DIR
+The location to look for executable extension files, by default
+\fIPASSWORD_STORE_DIR/.extensions\fP.
+.TP
 .I EDITOR
 The location of the text editor used by \fBedit\fP.
 .SH SEE ALSO
diff --git a/src/password-store.sh b/src/password-store.sh
index 7b1d5a5..e68a14e 100755
--- a/src/password-store.sh
+++ b/src/password-store.sh
@@ -13,6 +13,7 @@ which gpg2 &>/dev/null && GPG="gpg2"
 [[ -n $GPG_AGENT_INFO || $GPG == "gpg2" ]] && GPG_OPTS+=( "--batch" "--use-agent" )
 
 PREFIX="${PASSWORD_STORE_DIR:-$HOME/.password-store}"
+EXTENSIONS="${PASSWORD_STORE_EXTENSION_DIR:-$PREFIX/.extensions}"
 X_SELECTION="${PASSWORD_STORE_X_SELECTION:-clipboard}"
 CLIP_TIME="${PASSWORD_STORE_CLIP_TIME:-45}"
 GENERATED_LENGTH="${PASSWORD_STORE_GENERATED_LENGTH:-25}"
@@ -573,6 +574,18 @@ cmd_git() {
 	fi
 }
 
+cmd_extension() {
+	local extension="$EXTENSIONS/$1.bash"
+	check_sneaky_paths "$extension"
+	if [[ -f $extension && -x $extension ]]; then
+		shift
+		source "$extension" "$@"
+	else
+		COMMAND="show"
+		cmd_show "$@"
+	fi
+}
+
 #
 # END subcommand functions
 #
@@ -594,6 +607,6 @@ case "$1" in
 	rename|mv) shift;		cmd_copy_move "move" "$@" ;;
 	copy|cp) shift;			cmd_copy_move "copy" "$@" ;;
 	git) shift;			cmd_git "$@" ;;
-	*) COMMAND="show";		cmd_show "$@" ;;
+	*)				cmd_extension "$@" ;;
 esac
 exit 0
-- 
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