Add segment kubernetes_context.sh

fixes #377

Author: xx4h

segments/kubernetes_context.sh

@@ -0,0 +1,32 @@
+TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL:-󱃾}"
+TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR:-255}"
+
+
+generate_segmentrc() {
+	read -d '' rccontents << EORC
+# Kubernetes config context symbol.
+# export TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL}"
+# Kubernetes config context symbol colour.
+# export TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR}"
+EORC
+	echo "$rccontents"
+}
+
+run_segment() {
+	__process_settings
+	type kubectl >/dev/null 2>&1
+	if [ $? -ne 0 ]; then
+		return 0
+	fi
+	kubernetes_context=$(kubectl config current-context)
+	echo -n "#[${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR}]${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL} #[fg=${TMUX_POWERLINE_CUR_SEGMENT_FG}]${kubernetes_context}"
+}
+
+__process_settings() {
+	if [ -z "$TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL" ]; then
+		export TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR" ]; then
+		export TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_KUBERNETES_CONTEXT_SYMBOL_COLOUR}"
+	fi
+}