Meta/RelSign: optionally use existing agent

RelSign

@@ -1,20 +1,29 @@
 #!/bin/sh
 
-# Use agent
-GPG_TTY=$(tty) &&
-export GPG_TTY &&
-
-if AGENT=$(gpg-agent --daemon 2>/dev/null)
+if test "${GPG_TTY+set}" = set
 then
-	eval "$AGENT" &&
-	GPG_AGENT_PID=$(expr "$GPG_AGENT_INFO" : ".*:\([1-9][0-9]*\):[1-9][0-9]*$") &&
-	trap 'kill -0 2>/dev/null $GPG_AGENT_PID && kill $GPG_AGENT_PID' 0 1 2 3 15 &&
-	kill -0 "$GPG_AGENT_PID"
+	WE_STARTED_AGENT=no
+	echo >&2 Reusing existing agent
 else
-	# agent is always on
-	gpgconf --kill gpg-agent
-	GPG_AGENT_PID=
-fi &&
+	WE_STARTED_AGENT=yes
+
+	GPG_TTY=$(tty) &&
+	export GPG_TTY &&
+
+	if AGENT=$(gpg-agent --daemon 2>/dev/null)
+	then
+		eval "$AGENT" &&
+		GPG_AGENT_PID=$(expr "$GPG_AGENT_INFO" : ".*:\([1-9][0-9]*\):[1-9][0-9]*$") &&
+		trap 'kill -0 2>/dev/null $GPG_AGENT_PID &&
+		      kill $GPG_AGENT_PID' 0 1 2 3 15 &&
+		kill -0 "$GPG_AGENT_PID"
+	else
+		# agent is always on
+		gpgconf --kill gpg-agent
+		GPG_AGENT_PID=
+	fi || exit
+fi
+
 gpg="gpg --use-agent --local-user 96AFE6CB!" || exit
 
 formats='htmldocs manpages'
@@ -114,9 +123,12 @@ do
 	report "$version"
 done
 
-if test -n "$GPG_AGENT_PID"
+if test "$WE_STARTED_AGENT" = yes
 then
-	kill "$GPG_AGENT_PID"
-else
-	gpgconf --kill gpg-agent
+	if test -n "$GPG_AGENT_PID"
+	then
+		kill "$GPG_AGENT_PID"
+	else
+		gpgconf --kill gpg-agent
+	fi
 fi