fix(dev): prevent set environment vars accumulation over multiple runs

poco_env.bash

@@ -23,8 +23,72 @@ OSARCH="${OSARCH:=$(uname -m)}"
 export OSARCH
 POCO_BASE="$basedir"
 export POCO_BASE
-PATH=$POCO_BASE/lib/$OSNAME/$OSARCH:$POCO_BASE:$PATH
+
-export PATH
+POCO_LIB_PATH=$POCO_BASE/lib/$OSNAME/$OSARCH
+POCO_BIN_PATH=$POCO_BASE/Foundation/testsuite/bin/$OSNAME/$OSARCH
+POCO_PATHS=$POCO_BASE:$POCO_LIB_PATH:$POCO_BIN_PATH
+if [[ "$PATH" != *"$POCO_PATHS"* ]]; then
+	PATH=$POCO_PATHS:$PATH
+	export PATH
+fi
+
+explibpath=
+expbinpath=
+exppocopath=
+function setPath {
+# adds POCO_PATHS to system PATH only if they are not there already
+	IFS=':' read -ra PATHDIR <<< "$1"
+	for i in "${PATHDIR[@]}"; do
+		if [[ "$POCO_LIB_PATH" == "$i" ]]; then
+			explibpath+="$i"
+		elif [[ "$POCO_BIN_PATH" == "$i" ]]; then
+			expbinpath+="$i"
+		elif [[ "$POCO_BASE" == "$i" ]]; then
+			exppocopath+="$i"
+		fi
+	done
+}
+
+setPath "$PATH"
+
+if [[ -z "$exppocopath" ]]; then
+	export PATH="$POCO_BASE:$PATH"
+fi
+
+if [[ -z "$explibpath" ]]; then
+	export PATH="$POCO_LIB_PATH:$PATH"
+fi
+
+if [[ -z "$expbinpath" ]]; then
+	export PATH="$POCO_BIN_PATH:$PATH"
+fi
+
+explibpath=
+function setLibPath {
+# adds POCO_LIB_PATH to (DY)LD_LIBRARY_PATH only if it is not there already
+	IFS=':' read -ra LIBDIR <<< "$1"
+	for i in "${LIBDIR[@]}"; do
+		if [[ "$POCO_LIB_PATH" == "$i" ]]; then
+			explibpath="$1"
+			break
+		fi
+	done
+}
+
+case "${OSNAME}" in
+	Linux*)
+		setLibPath "$LD_LIBRARY_PATH"
+		if [[ -z "$explibpath" ]]; then
+			export LD_LIBRARY_PATH="$POCO_LIB_PATH:$DYLD_LIBRARY_PATH"
+		fi
+		;;
+	Darwin*)
+		setLibPath "$DYLD_LIBRARY_PATH"
+		if [[ -z "$explibpath" ]]; then
+			export DYLD_LIBRARY_PATH="$POCO_LIB_PATH:$DYLD_LIBRARY_PATH"
+		fi
+		;;
+esac
 
 # uncomment for sanitizer builds
 #LSAN_OPTIONS=verbosity=1:log_threads=1
@@ -34,3 +98,7 @@ echo "\$OSNAME    = $OSNAME"
 echo "\$OSARCH    = $OSARCH"
 echo "\$POCO_BASE = $POCO_BASE"
 echo "\$PATH      = $PATH"
+case "${OSNAME}" in
+	Linux*)  echo "\$LD_LIBRARY_PATH   = $LD_LIBRARY_PATH";;
+	Darwin*) echo "\$DYLD_LIBRARY_PATH = $DYLD_LIBRARY_PATH";;
+esac