MAKEFLAGS += --no-builtin-rules --no-builtin-variables --warn-undefined-variables
.DEFAULT_GOAL := all
.DELETE_ON_ERROR:
.SUFFIXES:
SHELL := bash
.SHELLFLAGS := -e -o pipefail -c

escape = $(subst ','\'',$(1))

define noexpand
ifeq ($$(origin $(1)),environment)
    $(1) := $$(value $(1))
endif
ifeq ($$(origin $(1)),environment override)
    $(1) := $$(value $(1))
endif
ifeq ($$(origin $(1)),command line)
    override $(1) := $$(value $(1))
endif
endef

.PHONY: all
all: serve

.PHONY: ruby
ruby:
	command -v rbenv && rbenv install --skip-existing

.PHONY: deps
deps: ruby
	bundle install

.PHONY: build
build:
	bundle exec jekyll build --drafts

.PHONY: serve
serve:
	bundle exec jekyll serve --drafts

URL := http://localhost:4000/sorting-algorithms/

.PHONY: wget
wget:
	wget --no-verbose --recursive --no-parent --convert-links --adjust-extension -e robots=off --directory-prefix=.wget -- '$(call escape,$(URL))'