From aabe344aa60cc1663cb45a0c2d84fb7f30466cfa Mon Sep 17 00:00:00 2001
From: Matthias Kruk <m@m10k.eu>
Date: Sat, 24 Jul 2021 13:21:27 +0900
Subject: [PATCH] include/conf: Add support for multiple configuration files

The current conf implementation does not permit processes to use
more than one configuration file.
This commit modifies the conf module so that each process may use
an arbitrary number of configuration files by appending the name of
a config domain to the commandline of commands such as conf_get()
and conf_set(), falling back to "default" if the config domain was
omitted.
This commit further adds the conf_get_domains() method that may be
used to query the names of known configuration domains.
---
 include/conf.sh | 45 +++++++++++++++++++++++++++++++++------------
 1 file changed, 33 insertions(+), 12 deletions(-)

diff --git a/include/conf.sh b/include/conf.sh
index 84afbf6..a5de6d0 100644
--- a/include/conf.sh
+++ b/include/conf.sh
@@ -31,8 +31,8 @@ __init() {
                 return 1
         fi
 
-	declare -xgr __conf_root="$TOOLBOX_HOME/conf"
-	declare -xgr __conf_file="$__conf_root/$script_name.conf"
+	declare -xgr __conf_root="$TOOLBOX_HOME/conf/$script_name"
+	declare -xgr __conf_default="$__conf_root/default.conf"
 
 	if ! mkdir -p "$__conf_root"; then
 		log_error "Could not create config dir"
@@ -44,14 +44,14 @@ __init() {
 
 conf_get() {
 	local name="$1"
-	local default="$2"
+	local config="$2"
 
-	if ! grep -m 1 -oP "^$name=\K.*" "$__conf_file" 2>/dev/null; then
-		if (( $# <= 1 )); then
-			return 1
-		fi
+	if [[ -z "$config" ]]; then
+		config="default"
+	fi
 
-		echo "$default"
+	if ! grep -m 1 -oP "^$name=\\K.*" "$__conf_root/$config.conf" 2>/dev/null; then
+		return 1
 	fi
 
 	return 0
@@ -59,8 +59,13 @@ conf_get() {
 
 conf_unset() {
 	local name="$1"
+	local config="$2"
 
-	if ! sed -i -e "/^$name=.*/d" "$__conf_file" &> /dev/null; then
+	if [[ -z "$config" ]]; then
+		config="default"
+	fi
+
+	if ! sed -i -e "/^$name=.*/d" "$__conf_root/$config.conf" &> /dev/null; then
 		return 1
 	fi
 
@@ -71,16 +76,32 @@ conf_unset() {
 conf_set() {
 	local name="$1"
 	local value="$2"
+	local config="$3"
 
-	if conf_get "$name" &> /dev/null; then
-		if ! conf_unset "$name"; then
+	if [[ -z "$config" ]]; then
+		config="default"
+	fi
+
+	if conf_get "$name" "$config" &> /dev/null; then
+		if ! conf_unset "$name" "$config"; then
 			return 1
 		fi
 	fi
 
-	if ! echo "$name=$value" >> "$__conf_file"; then
+	if ! echo "$name=$value" >> "$__conf_root/$config.conf"; then
 		return 1
 	fi
 
 	return 0
 }
+
+conf_get_domains() {
+	local config
+
+	while read -r config; do
+		config="${config##*/}"
+		echo "${config%.conf}"
+	done < <(find "$__conf_root" -type f -iname "*.conf")
+
+	return 0
+}
-- 
2.47.3