diff mbox series

[3/5] libtracefs: Add make uninstall

Message ID 20201216043921.621289635@goodmis.org (mailing list archive)
State Accepted
Commit aa23a11d333758a811fe39cc25e482ebaa904feb
Headers show
Series libtracefs: Makefile fixes, add uninstall and fix dependency of libtracefs.pc | expand

Commit Message

Steven Rostedt Dec. 16, 2020, 4:38 a.m. UTC 
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

Create the logic to remove the files that would normally be installed.

Note, this does take the DESTDIR and prefix variables into account. Where
the uninstall may only work for an install with the same variables.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 Makefile         | 22 ++++++++++++++++++++++
 scripts/utils.mk |  2 ++
 2 files changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index 5094966f4d06..653fdc448f45 100644
--- a/Makefile
+++ b/Makefile
@@ -264,6 +264,28 @@  install_doc:
 install_doc_gui:
 	$(MAKE) -C $(kshark-dir)/Documentation install
 
+define build_uninstall_script
+	$(Q)mkdir $(BUILD_OUTPUT)/tmp_build
+	$(Q)$(MAKE) -C $(src) DESTDIR=$(BUILD_OUTPUT)/tmp_build/ O=$(BUILD_OUTPUT) $1 > /dev/null
+	$(Q)find $(BUILD_OUTPUT)/tmp_build ! -type d -printf "%P\n" > $(BUILD_OUTPUT)/build_$2
+	$(Q)$(RM) -rf $(BUILD_OUTPUT)/tmp_build
+endef
+
+build_uninstall:
+	$(call build_uninstall_script,install,uninstall)
+
+$(BUILD_OUTPUT)/build_uninstall: build_uninstall
+
+define uninstall_file
+	if [ -f $(DESTDIR)/$1 -o -h $(DESTDIR)/$1 ]; then \
+		$(call print_uninstall,$(DESTDIR)/$1)$(RM) $(DESTDIR)/$1; \
+	fi;
+endef
+
+uninstall: $(BUILD_OUTPUT)/build_uninstall
+	@$(foreach file,$(shell cat $(BUILD_OUTPUT)/build_uninstall),$(call uninstall_file,$(file)))
+	$(Q)$(RM) $<
+
 PHONY += force
 force:
 
diff --git a/scripts/utils.mk b/scripts/utils.mk
index 398b88a75bfb..74b138eefed6 100644
--- a/scripts/utils.mk
+++ b/scripts/utils.mk
@@ -22,6 +22,7 @@  ifeq ($(findstring 1,$(SILENT)$(VERBOSE)),1)
   print_plugin_obj_compile =
   print_plugin_build =
   print_install =
+  print_uninstall =
   print_update =
 else
   print_compile =		echo '  COMPILE            '$(GOBJ);
@@ -32,6 +33,7 @@  else
   print_plugin_build =		echo '  BUILD PLUGIN       '$(GOBJ);
   print_static_lib_build =	echo '  BUILD STATIC LIB   '$(GOBJ);
   print_install =		echo '  INSTALL     '$1'	to	$(DESTDIR_SQ)$2';
+  print_uninstall =		echo '  UNINSTALL     $(DESTDIR_SQ)$1';
   print_update =		echo '  UPDATE             '$(GOBJ);
 endif