refactor(history): commit development branch

new development branch from root commit

sh/main.sh

@@ -0,0 +1,144 @@
+#! /usr/bin/env sh
+
+# ╭──────┬───────────╮
+# │ main │ constants │
+# ╰──────┴───────────╯
+
+RWX_MAIN_NAME="main.sh"
+RWX_SELF_NAME="rwx"
+
+RWX_SELF_COMMAND="_${RWX_SELF_NAME}_cmd_"
+
+# ╭──────┬───────────╮
+# │ main │ variables │
+# ╰──────┴───────────╯
+
+RWX_COMMAND_ARGUMENT="${0}"
+RWX_SHELL="$(cat "/proc/${$}/comm")"
+
+RWX_COMMAND_NAME="$(basename "${RWX_COMMAND_ARGUMENT}" |
+	sed "s|^-||")"
+case "${RWX_COMMAND_NAME}" in
+"bash" | "dash" | "sh") unset RWX_COMMAND_NAME ;;
+*) ;;
+esac
+RWX_ROOT_SYSTEM="/usr/local/lib/${RWX_SELF_NAME}"
+RWX_SELF_USER="${HOME}/${RWX_SELF_NAME}"
+
+RWX_MAIN_PATH="${RWX_ROOT_SYSTEM}/${RWX_MAIN_NAME}"
+
+# ╭──────┬───────╮
+# │ main │ shell │
+# ╰──────┴───────╯
+
+# test if active shell is in interactive mode
+rwx_shell_interactive() {
+	case "${-}" in
+	*i*) ;;
+	*) return 1 ;;
+	esac
+}
+
+# ╭──────┬─────╮
+# │ main │ log │
+# ╰──────┴─────╯
+
+__rwx_log() {
+	if rwx_shell_interactive; then
+		[ ${#} -gt 0 ] || set -- ""
+		local line
+		for line in "${@}"; do
+			echo "${line}"
+		done
+	fi
+}
+
+# ╭──────┬──────╮
+# │ main │ find │
+# ╰──────┴──────╯
+
+# find directory’s files by extension
+rwx_find_extension() {
+	local extension="${1}"
+	local root="${2}"
+	local file="${3}"
+	set -- \
+		"${root}" \
+		-name "*.${extension}" \
+		-type "f"
+	[ -n "${file}" ] &&
+		set -- "${@}" \
+			-not \
+			-name "${file}"
+	find "${@}" \
+		-printf "%P\n" |
+		sort
+}
+
+# find directory’s sh files
+rwx_find_shell() {
+	rwx_find_extension "sh" "${@}"
+}
+
+# ╭──────┬─────╮
+# │ main │ ifs │
+# ╰──────┴─────╯
+
+rwx_ifs_set() {
+	_RWX_IFS="${IFS}"
+	IFS="
+"
+}
+
+rwx_ifs_unset() {
+	IFS="${_RWX_IFS}"
+	unset RWX_IFS
+}
+
+# ╭──────┬────────╮
+# │ main │ source │
+# ╰──────┴────────╯
+
+rwx_source() {
+	local path="${1}"
+	[ -d "${path}" ] ||
+		return 1
+	local count module
+	count=0
+	__rwx_log "" \
+		". ${path}"
+	rwx_ifs_set
+	for module in $(rwx_find_shell "${path}" "${RWX_MAIN_NAME}"); do
+		count=$((count + 1))
+		__rwx_log "$(printf "%02d" "${count}") ${module%.sh}"
+		module="${path}/${module}"
+		# shellcheck disable=SC1090
+		. "${module}"
+	done
+	rwx_ifs_unset
+}
+
+# ╭──────╮
+# │ main │
+# ╰──────╯
+
+# run initial steps
+rwx_main() {
+	# system root
+	if ! rwx_source "${RWX_ROOT_SYSTEM}"; then
+		__rwx_log "Not a directory: ${RWX_ROOT_SYSTEM}"
+		return 1
+	fi
+	# user root
+	rwx_source "${RWX_SELF_USER}"
+	# context / command
+	if [ -n "${RWX_COMMAND_NAME}" ]; then
+		"${RWX_SELF_COMMAND}${RWX_COMMAND_NAME}" "${@}"
+	# context / shell
+	else
+		rwx_self_init
+	fi
+}
+
+# run main function
+rwx_main "${@}"