WordPress plugin reducisaurus Makefile

Makefile

# WordPress plugin reducisaurus Makefile
# Author: haliphax <https://haliphax.dev>

# current directory - used when zipping
CWD := $(shell pwd)
# get project base name from directory name
PROJ := $(word $(words $(subst /, ,$(CWD))), $(subst /, ,$(CWD)))
# pull version from main project file 
VER := $(shell egrep "^Version:" $(PROJ).php | cut -d" " -f2)

# css minification
CSS_URL = http://reducisaurus.appspot.com/css
CSS_FILES = $(filter-out %.min.css, $(wildcard css/*.css))
CSS_MINI = $(CSS_FILES:.css=.min.css)
# uses php to urlencode the files
CSS_ENC = $(shell php -r "echo urlencode(file_get_contents('$<'));")

# javascript minification
JS_URL = http://reducisaurus.appspot.com/js
JS_FILES = $(filter-out %.min.js, $(wildcard js/*.js))
JS_MINI = $(JS_FILES:.js=.min.js)
# uses php to urlencode the files
JS_ENC = $(shell php -r "echo urlencode(file_get_contents('$<'));")

# target: minify - Minify Javascript and CSS files
minify: js css

# target: js - minify Javascript files
js: $(JS_FILES) $(JS_MINI)

# target: css - minify CSS files
css: $(CSS_FILES) $(CSS_MINI)

# recipe: build minified stylesheets
%.min.css: %.css
	@echo "==> Minifying stylesheet: $<"
	$(shell curl -sd "file=$(CSS_ENC)" $(CSS_URL) -o $@)

# recipe: build minified scripts
%.min.js: %.js
	@echo "==> Minifying script: $<"
	$(shell curl -sd "file=$(JS_ENC)" $(JS_URL) -o $@)

# target: zip - Build *.zip archive of project
zip:
	@echo "==> Creating $(PROJ).$(VER).zip"
	$(shell \
		cd $(CWD)/.. ; \
		zip -qr $(CWD)/$(PROJ).$(VER).zip $(PROJ)/* -i \*.php \*.js \*.css ; \
		cd $(CWD) \
	)

# target: all - Run all scenarios
all: minify zip

# target: clean - Removes *.zip file and minified Javascript files
clean:
	@echo "==> Cleaning project"
	$(shell rm -f $(JS_MINI) $(CSS_MINI) $(PROJ).*.zip)

# target: help - Displays help
help:
	@egrep "^# target:" Makefile