Makefile

# GNU make is required to run this file. To install on *BSD, run:
#   gmake PREFIX=/usr/local install

PREFIX ?= /usr
ICON_THEMES ?= $(patsubst %/index.theme,%,$(wildcard ./*/index.theme))

all:

install:
	mkdir -p $(DESTDIR)$(PREFIX)/share/icons
	cp -R $(ICON_THEMES) $(DESTDIR)$(PREFIX)/share/icons

# skip building icon caches when packaging
	$(if $(DESTDIR),,$(MAKE) $(ICON_THEMES))

$(ICON_THEMES):
	-gtk-update-icon-cache -q $(DESTDIR)$(PREFIX)/share/icons/$@

uninstall:
	-rm -rf $(foreach icon_theme,$(ICON_THEMES),$(DESTDIR)$(PREFIX)/share/icons/$(icon_theme))

dist: AUTHORS COPYING CREDITS LICENSE Makefile
	git archive --format=tar.gz -o $(notdir $(CURDIR)).tar.gz improve-directory-tree -- $(ICON_THEMES) $^


.PHONY: $(ICON_THEMES) all install uninstall dist

# TESTS
.PHONY: test
test: test_short

.PHONY: test-all
test-all: test_short test_long

.PHONY: test_short
test_short: test_svg_elems test_symlinks test_filenames

.PHONY: test_long
test_long: test_xml_struct

.PHONY: test_svg_elems
test_svg_elems:
	# >>> Searching for icons with embedded objects
	@! LC_ALL=C grep -E -rl --include='*.svg' \
		-e '<image[ ]' \
		-e '<object[ ]' \
		$(ICON_THEMES)

.PHONY: test_symlinks
test_symlinks:
	# >>> Searching for broken symlinks
	@find $(ICON_THEMES) -xtype l -printf '%p -> %l\n' -exec false '{}' +

.PHONY: test_filenames
test_filenames:
	# >>> Searching for invalid filenames
	@find $(ICON_THEMES) -not -iregex '[-_/\.+@a-z0-9]+' -print \
		-exec false '{}' +

.PHONY: test_xml_struct
test_xml_struct:
	# >>> Searching for broken SVG icons
	@find $(ICON_THEMES) -type f -name '*.svg' \
		-exec xmlstarlet validate --list-bad '{}' +

# .BEGIN is ignored by GNU make so we can use it as a guard
.BEGIN:
	@head -3 Makefile
	@false