#!/usr/bin/make -f

include /usr/share/dpkg/pkg-info.mk

# detect if build targets experimental suite (or is a draft)
DEB_SUITE_EXP = $(filter experimental% UNRELEASED,$(DEB_DISTRIBUTION))

# GNU LibreJS 5.0 compatible license string
# * See <https://www.gnu.org/software/librejs/free-your-javascript.html>
LICENSE = // @license magnet:?xt=urn:btih:87f119ba0b429ba17a44b4bffcab33165ebdacc0&dn=freebsd.txt BSD-2-Clause

# generate documentation unless nodoc requested
ifeq (,$(filter nodoc,$(DEB_BUILD_OPTIONS)))
DOCS = README.html README.txt
MANPAGES = debian-man/terser.1
endif

ESLINT = eslint --format tap
MOCHA = mocha --no-timeout --reporter tap

# generate manpage with help2man from --help option of Node.js script
_mkman = help2man $(if $3,--name "$(strip $3)") --no-info --output $2 $1 \
 || { $1 --help; false; }

override_dh_auto_configure:
	mkdir -p node_modules
	for l in acorn escodegen rimraf semver source-map source-map-support; do \
		ln -s /usr/share/nodejs/$$l node_modules/; \
	done
	mkdir -p node_modules/@jridgewell
	ln -s /usr/share/nodejs/@jridgewell/source-map node_modules/@jridgewell

override_dh_auto_build: \
 debian/js/bundle.js.gz $(DOCS) $(MANPAGES)

# build manpage
debian-man/terser.1: debian-man/%.1: bin/% debian/js/bundle.js.gz
	mkdir --parents $(dir $@)
	$(call _mkman, $<, $@, \
		JavaScript parser and mangler/compressor and beautifier toolkit)

# * don't fail on experimental builds
# * trick testsuite into not using mochallel
# * ignore tests relying on NodeJS module astring (we use escodegen)
override_dh_auto_test:
	$(ESLINT) lib
	node test/compress.js
	$(MOCHA) test/mocha | debian/tap-todo \
		'^input sourcemaps Should preserve unmapped segments in output source map$$' \
		'^spidermonkey export/import sanity test should produce a spidermonkey AST w/ .format.spidermonkey: true.$$' \
		'^spidermonkey export/import sanity test should produce an AST compatible with astring$$' \
		$(if $(DEB_SUITE_EXP),|| true)

# install core documentation with all binary packages
override_dh_installdocs:
	dh_installdocs -- $(DOCS)

# build browser and test libraries
debian/js/%.js:
	rollup --no-esModule -c
	cp --force dist/bundle.min.cjs dist/bundle.js
	mkdir --parents debian/js
	install --mode a=r,u+w -D --target-directory debian/js \
		-- dist/bundle*
	mv debian/js/bundle.min.cjs debian/js/bundle.min.js
	mv --force dist/bundle.js dist/bundle.min.cjs

# pre-compress for browser use
%.gz: %
	pigz --force --keep -11 -- $<
	brotli --force --keep --best --suffix=.brotli -- $<

%.html: %.md
	cmark-gfm $< > $@

%.txt: %.md
	cmark-gfm --to plaintext $< > $@

%:
	dh $@

.SECONDARY: