2022-02-03

home/dot-local/share/bash/common.sh

@@ -0,0 +1,54 @@
+
+for edit in nvim vim nano vi; do
+	EDITOR="$(command -v ${edit})" && break
+done
+VISUAL="${EDITOR}"
+
+
+# path-munge [OPTIONS] path
+#  -b add path as prefix to existing path
+#  -a add path as suffix to existing path (default)
+function path-munge() {
+	local mode='suffix'
+
+	local OPTIND=1 OPTFLG=''
+	while getopts "ba" OPTFLG "$@"; do
+		case "${OPTFLG}" in
+		b) mode='prefix' ;;
+		a) mode='suffix' ;;
+		:) ;;
+		*) ;;
+		esac
+	done
+	shift "$((OPTIND - 1))"
+
+	if [[ :${PATH}: != *:$1:* ]]; then
+		case "${mode}" in
+		prefix) PATH="$1${PATH:+":"}${PATH}" ;;
+		suffix) PATH="${PATH}${PATH:+":"}$1" ;;
+		esac
+	fi
+}
+
+# shellcheck disable=SC2120
+function has-superuser-priviliges() {
+	[[ "$(/usr/bin/groups)" == *"${1:-"wheel"}"* || "$(/usr/bin/id -u)" == "0" ]]
+}
+
+# reset bin lookup path
+PATH=''
+
+if has-superuser-priviliges; then
+	path-munge /usr/local/sbin
+	path-munge /usr/sbin
+fi
+
+path-munge /usr/local/bin
+path-munge /usr/bin
+
+# user binaries will always be first
+path-munge -b ~/.local/bin
+
+export EDITOR VISUAL PATH
+
+unset -f has-superuser-priviliges