From 288fa1d1d653176461d0767beb5cdd8219920b2b Mon Sep 17 00:00:00 2001
From: jonas <jonas@8f53b18a-e215-0410-8885-9f593d34873e>
Date: Sun, 15 Oct 2006 19:28:25 +0000
Subject: Major rewrite to more generically load chunks of settings either from
 local or shared files.

git-svn-id: svn+ssh://xayide/home/jonas/private_svn/fleshybrid/homebase@41 8f53b18a-e215-0410-8885-9f593d34873e
---
 common-settings | 78 ++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 52 insertions(+), 26 deletions(-)

diff --git a/common-settings b/common-settings
index b39952a..5c550c1 100644
--- a/common-settings
+++ b/common-settings
@@ -6,32 +6,58 @@ set -e
 
 . ./defaults.cfg || exit 1
 
-shareddir="hosts"
-sharedfile="host"
-customfile="host.cfg"
-if [ -f "$customfile" ]; then
-	if [ -f "$sharedfile" ]; then
-		echo "W: Ignoring shared host config \"$sharedfile\" - using custom \"$customfile\" instead."
-	fi
-	. "$customfile"
-elif [ -f "$sharedfile" ]; then
-	. "$shareddir"/`cat "$sharedfile" |head -1`
-else
-	echo "E: No host config found - either mention shared host config in \"$sharedfile\" or write custom file \"$customfile\"."
-fi
-
-shareddir="targets"
-sharedfile="target"
-customfile="target.cfg"
-if [ -f "$customfile" ]; then
-	if [ -f "$sharedfile" ]; then
-		echo "W: Ignoring shared target config \"$sharedfile\" - using custom \"$customfile\" instead."
+readref() {
+	ref="$1"
+
+	cat "$ref" |head -1
+}
+
+findsettingsdir() {
+	ref="$1"; shift
+
+	for dir in $@; do
+		result="`find "$dir" -mindepth 1 -maxdepth 1 -type f -name "$ref" -printf '%h\n'`"
+		[ -z "$result" ] && continue
+		echo $result
+		exit 0
+	done
+	exit 1
+}
+
+findsettings() {
+	context="$1"
+	settingsfile="$context.cfg"
+	reffile="$context"
+	shareddir="$2"
+	ref="$3"
+
+	# Local settings
+	if [ -f "$settingsfile" ]; then
+		echo "$settingsfile"
+	# Local reference
+	elif [ -f "$reffile" ]; then
+		if settingsfile="`readref "$reffile"`" && settingsdir="`findsettingsdir "$settingsfile" "$shareddir"`" && [ -f "$settingsdir/$settingsfile" ]; then
+			echo "$settingsdir/$settingsfile"
+		else
+			echo >&2 "E: Failed setting $context: Unable to resolve the settings file from the file \"$reffile\"."
+			exit 1
+		fi
+	# Reference chained from earlier settings
+	elif [ -n "$ref" ]; then
+		settingsfile="$ref"
+		if settingsdir="`findsettingsdir "$settingsfile" "$shareddir"`" && [ -f "$settingsdir/$settingsfile" ]; then
+			echo "$settingsdir/$settingsfile"
+		else
+			echo >&2 "E: Failed setting $context: Unable to locate settings file \"$ref\"."
+			exit 1
+		fi
+	else
+		echo >&2 "E: No $context config found - refer to a shared settings file in the file \"$reffile\" or write a custom settings file \"$settingsfile\"."
+		exit 1
 	fi
-	. "$customfile"
-elif [ -f "$sharedfile" ]; then
-	. "$shareddir"/`cat "$sharedfile" |head -1`
-else
-	echo "E: No target config found - either mention shared host config in \"$sharedfile\" or write custom file \"$customfile\"."
-fi
+}
+
+. `findsettings host hosts $host`
+. `findsettings target targets $target`
 
 . ./defaults-aftermath.cfg || exit 1
-- 
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