add coverage target to makefile to generate a coverage report

diff --git a/Makefile b/Makefile
index 991fb49fa6b211634e9d5322de1fa095ea137e02..c93591425f06a38ae94ed04af7fdcf797f9d7785 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -95,7 +95,8 @@ dist: distclean
        rm -rf i3-${VERSION}
 
 clean:
-       rm -f src/*.o src/cfgparse.tab.{c,h} src/cfgparse.yy.c src/cfgparse.output src/cmdparse.tab.{c,h} src/cmdparse.yy.c src/cmdparse.output loglevels.tmp include/loglevels.h
+       rm -f src/*.o src/*.gcno src/cfgparse.tab.{c,h} src/cfgparse.yy.c src/cfgparse.output src/cmdparse.tab.{c,h} src/cmdparse.yy.c src/cmdparse.output loglevels.tmp include/loglevels.h
+       (which lcov >/dev/null && lcov -d . --zerocounters) || true
        $(MAKE) -C docs clean
        $(MAKE) -C man clean
        $(MAKE) TOPDIR=$(TOPDIR) -C i3-msg clean
@@ -105,3 +106,9 @@ distclean: clean
        rm -f i3
        $(MAKE) TOPDIR=$(TOPDIR) -C i3-msg distclean
        $(MAKE) TOPDIR=$(TOPDIR) -C i3-input distclean
+
+coverage:
+       rm -f /tmp/i3-coverage.info
+       rm -rf /tmp/i3-coverage
+       lcov -d . -b . --capture -o /tmp/i3-coverage.info
+       genhtml -o /tmp/i3-coverage/ /tmp/i3-coverage.info