Initial commit with core behavior

path_enviornment.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+#####################################################################
+# If we have a path element, strip it then add it in the new location
+#####################################################################
+function testDirPathStripAdd() {
+	if [ -d "$1" ]; then
+		pathStripAdd "$1"
+	fi
+}
+
+function pathStripAdd() {
+	pathStrip "$1"
+	if [[ "$2" == "front" ]]; then
+		export PATH="${1}":"$PATH"
+	else
+		export PATH="$PATH":"${1}"
+	fi
+}
+
+function pathStrip() {
+	unset PATH2
+	# Iterate through each item of path.
+	# Keep items if they don't match argument $1
+	for p in ${PATH//:/ }; do
+		if [[ $p != *$1* ]] ; then
+			PATH2="${PATH2:-}":"$p"
+			#echo $PATH2
+		fi
+	done
+	export PATH="${PATH2:1}"
+	unset PATH2
+}
+
+#####################################################################
+# A function to load enviornment variables 
+#####################################################################
+function loadDirectory() {
+	DIR_EXPAND=$(readlink -f "$1")
+	if [ -d "$DIR_EXPAND" ] ; then
+		if [ -d "$DIR_EXPAND/bin" ] ; then
+			pathStripAdd "$DIR_EXPAND/bin" "$2"
+		fi
+		if [ -d "$DIR_EXPAND/lib" ] ; then
+			export LD_RUN_PATH="$DIR_EXPAND/lib:$LD_RUN_PATH"
+			export LD_LIBRARY_PATH="$DIR_EXPAND/lib:$LD_LIBRARY_PATH"
+
+			if [ -d "$DIR_EXPAND/lib/pkgconfig" ] ; then
+				export PKG_CONFIG_PATH="$DIR_EXPAND/lib/pkgconfig:$PKG_CONFIG_PATH"
+			fi
+		fi
+		if [ -d "$DIR_EXPAND/share/pkgconfig" ] ; then
+			export PKG_CONFIG_PATH="$DIR_EXPAND/share/pkgconfig:$PKG_CONFIG_PATH"
+		fi
+		if [ -d "$DIR_EXPAND/share/aclocal" ] ; then
+			export ACLOCAL_FLAGS="-I $DIR_EXPAND/share/aclocal $ACLOCAL_FLAGS"
+		fi
+	fi
+
+}
+
+
+###########
+# set PATH so it includes user's private bin if it exists
+if [ -d "$HOME/bin" ] ; then
+	pathStripAdd "$HOME/bin" front
+fi
+if [ -d "$HOME/.bin" ] ; then
+	pathStripAdd "$HOME/.bin" front
+fi
+
+# And load the local directory
+if [ -d "$HOME/.local" ] ; then
+	loadDirectory "$HOME/.local" front
+	# Set the data directory
+	if [ -d "$HOME/.local/share" ] ; then
+		export XDG_DATA_HOME="$HOME/.local/share"
+	fi
+fi
+
+# Load information that is in any extra random installed directory.
+__LOAD_DIRS=(/opt/mate /opt/makemkv /opt/ffmpeg $HOME/.gem/ruby/2.5.0 /opt/icestorm)
+for DIR_EXPAND in ${__LOAD_DIRS[*]}
+do
+	loadDirectory $DIR_EXPAND
+done
+unset DIR_EXPAND __LOAD_DIRS
+
+echo $PKG_CONFIG_PATH
+echo $LD_RUN_PATH
+echo $LD_LIBRARY_PATH
+# CLEAN these variables
+__VAR_PTR_LST=(PKG_CONFIG_PATH LD_RUN_PATH LD_LIBRARY_PATH)
+for __VAR_PTR in ${__VAR_PTR_LST[*]}
+do
+	# get the value in the pointer
+	eval __VAR_VAL=\$$__VAR_PTR
+	if [ ${#__VAR_VAL} -gt 0 ]; then
+		# Strip ending : or leading : if exists.
+		if [ ${__VAR_VAL: -1} == ":" ]; then
+			__VAR_VAL=${__VAR_VAL:0:-1}
+		fi
+		if [ ${__VAR_VAL:0:1} == ":" ]; then
+			__VAR_VAL=${__VAR_VAL:1}
+		fi
+		while [[ $__VAR_VAL == *"::"* ]]; do
+			__VAR_VAL=${__VAR_VAL/::/:}
+		done
+		while [[ $__VAR_VAL == *"/:"* ]]; do
+			__VAR_VAL=${__VAR_VAL/\/:/:}
+		done
+		# save the cleaned result
+		eval $__VAR_PTR=$__VAR_VAL
+		#echo $__VAR_PTR "=" $__VAR_VAL
+	fi
+done
+unset __VAR_PTR_LST __VAR_PTR __VAR_VAL
+