X-Git-Url: http://rtime.felk.cvut.cz/gitweb/pes-rpp/rpp-lib.git/blobdiff_plain/1dc5df1a4c40ced98aa8751bc2e5df6872a67ebb..7ce3175474253d2a0b887267c9645d5c68a53a21:/common.mk

diff --git a/common.mk b/common.mk
index 996df69..21be655 100644
--- a/common.mk
+++ b/common.mk
@@ -28,6 +28,11 @@ rmdir=-rm -rf $1
 cp=cp $1 $2
 endif
 
+# `make release` can ignore files without certain git attribute
+RELEASE_IGNORE_FILES_CMD = $(strip $(if $(RELEASE_ATTR),\
+	git ls-files | git check-attr --stdin $(RELEASE_ATTR)|awk -F: '!/$(RELEASE_ATTR): set$$/ {print $$1}',\
+	$(if $(filter RELEASE_ATTR,$(.VARIABLES)),,$(error Please specify RELEASE_ATTR variable (it can be empty)))))
+
 # Usage: $(call release_rules,<release_prefix>)
 define release_rules
 RELEASE_COMMIT = HEAD
@@ -38,16 +43,59 @@ RELEASE_VERSION := $$(shell git describe --always $$(RELEASE_COMMIT)|sed -e "s/^
 endif
 RELEASE_BASENAME = $$(RELEASE_PREFIX)-$$(RELEASE_VERSION)
 
-.PHONY: $$(RELEASE_BASENAME).zip
+.PHONY: $$(RELEASE_BASENAME).zip .git/info/attributes
+
+.git/info/attributes: A = $$(shell git rev-parse --git-dir)/info/attributes
+.git/info/attributes:
+# Ensure that attributes do not exist or are generated by us
+	test ! -e $$A || head -n 1 $$A | grep -F "Automatically generated (yoo9jei6Ee6Teiti)"
+	echo "# Automatically generated (yoo9jei6Ee6Teiti)" > $$A
+# Write ignored files there
+	for i in `$$(RELEASE_IGNORE_FILES_CMD)`; do echo $$$$i export-ignore >> $$A; echo Not releasing $$$$i; done
 
 $$(RELEASE_BASENAME).zip:
 	rm -rf $$@ $$(RELEASE_BASENAME)
 	$(MAKE) $$(RELEASE_BASENAME)
+	find $$(RELEASE_BASENAME) -type d -empty -print -delete
 	zip  -r $$@ $$(RELEASE_BASENAME)
 
-$$(RELEASE_BASENAME)::
+$$(RELEASE_BASENAME):: .git/info/attributes
 	git archive --worktree-attributes --prefix=$$@/ $$(RELEASE_COMMIT) | tar xf -
 
 print-release-basename:
 	@echo $$(RELEASE_BASENAME)
 endef
+
+# Case conversion macros. Taken from
+# http://git.buildroot.net/buildroot/tree/package/pkg-utils.mk. This
+# is inspired by the 'up' macro from gmsl (http://gmsl.sf.net). It is
+# optimised very heavily because these macros are used a lot. It is
+# about 5 times faster than forking a shell and tr.
+#
+# The caseconvert-helper creates a definition of the case conversion macro.
+# After expansion by the outer $(eval ), the UPPERCASE macro is defined as:
+# $(strip $(eval __tmp := $(1))  $(eval __tmp := $(subst a,A,$(__tmp))) ... )
+# In other words, every letter is substituted one by one.
+#
+# The caseconvert-helper allows us to create this definition out of the
+# [FROM] and [TO] lists, so we don't need to write down every substition
+# manually. The uses of $ and $$ quoting are chosen in order to do as
+# much expansion as possible up-front.
+#
+# Note that it would be possible to conceive a slightly more optimal
+# implementation that avoids the use of __tmp, but that would be even
+# more unreadable and is not worth the effort.
+
+[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
+[TO]   := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
+
+define caseconvert-helper
+$(1) = $$(strip \
+	$$(eval __tmp := $$(1))\
+	$(foreach c, $(2),\
+		$$(eval __tmp := $$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),$$(__tmp))))\
+	$$(__tmp))
+endef
+
+$(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
+$(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))