LESS compilation and minification Makefile

make.py

from subprocess import call

def make():
    call(['make'])


if __name__ == '__main__':
    make()

Makefile

SRC=static-src
DEST=static
LESS=less
JS=js
watchman=watchman

.PHONY : all clean watch

FILES_IN_CSS = $(shell find $(SRC)/$(LESS) -name *.less -maxdepth 1)
FILES_OUT_CSS = $(subst static-src,static,$(subst /less/,/css/compiled/,$(FILES_IN_CSS:.less=.css)))
FILES_IN_JS = $(shell find $(SRC)/$(JS) -name *.js -maxdepth 1)
FILES_OUT_JS = $(subst /js/,/js/compiled/,$(subst static-src,static,$(FILES_IN_JS)))

# Compile the final targets
all: $(FILES_OUT_JS) $(FILES_OUT_CSS)

# Destroy the final targets
clean:
	rm -r $(DEST)/css/compiled/
	rm -r $(DEST)/js/compiled/
	mkdir $(DEST)/css/compiled/
	mkdir $(DEST)/js/compiled/

# Watch the filesystem and recompile on file modification
watch:
	$(watchman) watch $(shell pwd)
	$(watchman) -- trigger $(shell pwd) remakejs '*.js' -- python $(shell pwd)/make.py
	$(watchman) -- trigger $(shell pwd) remakeless '*.less' -- python $(shell pwd)/make.py

$(DEST)/css/compiled/%.css: $(SRC)/$(LESS)/%.less
	lessc $? > $@
	minify $@

$(DEST)/js/compiled/%.js: $(SRC)/$(JS)/%.js
	cp $? $@
	uglifyjs -o $@ $@

scrollback

manzanita:web karenr$ ~/repos/watchman/watchman trigger-list ~/repos/aerofs/src/web/web/static-src/less
{
    "version": "2.9.7",
    "triggers": [
        {
            "name": "remakeless",
            "append_files": true,
            "command": [
                "python",
                "make.py"
            ],
            "stdin": [
                "name",
                "exists",
                "new",
                "size",
                "mode"
            ],
            "expression": [
                "anyof",
                [
                    "match",
                    "*.less",
                    "wholename"
                ]
            ]
        }
    ]
}

manzanita:web karenr$ ~/repos/watchman/watchman trigger-list ~/repos/aerofs/src/web/web/static-src/js
{
    "version": "2.9.7",
    "triggers": [
        {
            "name": "remakejs",
            "append_files": true,
            "command": [
                "python",
                "make.py"
            ],
            "stdin": [
                "name",
                "exists",
                "new",
                "size",
                "mode"
            ],
            "expression": [
                "anyof",
                [
                    "match",
                    "*.js",
                    "wholename"
                ]
            ]
        }
    ]
}