feat(git): configure age textconv

dot_gitconfig.tmpl

@@ -59,3 +59,6 @@
         clean = git-age clean -- %f
         smudge = git-age smudge -- %f
         required = true
+
+[diff "age"]
+        textconv = cat

private_dot_local/bin/executable_git-credential-rbw

@@ -1,5 +1,5 @@
-#!/opt/homebrew/Cellar/bash/5.2.21/bin/bash
-
+#!/usr/bin/env bash
+#
 # rbw git-credential helper
 # Based on https://github.com/lastpass/lastpass-cli/blob/master/contrib/examples/git-credential-lastpass
 
@@ -9,39 +9,36 @@
 # 1. Put this somewhere in your path.
 # 2. git config --global credential.helper rbw
 
-declare -A params
+set -f
 
-if [ "x$1" == "xget" ]; then
-    read line
-    while [ -n "$line" ]; do
-        key=${line%%=*}
-        value=${line#*=}
-        params[$key]=$value
-        read line
+[ "$1" = get ] || exit
+
+while read -r line; do
+	case $line in
+		protocol=*)
+			protocol=${line#*=} ;;
+		host=*)
+			host=${line#*=} ;;
+		username=*)
+			user=${line#*=} ;;
+	esac
 done
 
-    if [ "x${params['protocol']}" != "xhttps" ]; then
-        exit
-    fi
+output=
+#shellcheck disable=2154
+for arg in \
+	"${protocol:+$protocol://}$host" \
+	"$host" \
+	"${host2=${host%.*}}" \
+	"${host2#*.}"
+do
+	# exit on first good result
+	[ -n "$user" ] && output=$(rbw get --full "$arg" "$user") && break
+	output=$(rbw get --full "$arg") && break
+done || exit
 
-    if [ -z "${params["host"]}" ]; then
-        exit
-    fi
-
-    rbw ls > /dev/null 2>&1
-    if [ $? -ne 0 ]; then
-        echo "Please login to rbw to use git credential helper" > /dev/stderr
-        exit
-    fi
-
-    user=`rbw get --full ${params["host"]} | grep "Username:" | cut -d' ' -f2-`
-    pass=`rbw get ${params["host"]}`
-
-    if [ "x$user" == "x" ] || [ "x$pass" == "x" ]; then
-        echo "Couldn't find host in rbw DB." > /dev/stderr
-        exit
-    fi
-
-    echo username=$user
-    echo password=$pass
-fi
+printf '%s\n' "$output" | sed -n '
+	1{ s/^/password=/p }
+	s/^Username: /username=/p
+	s/^URI: /host=/p
+	'