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make release archive: common (or no) timestamps

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The appended file 'version' has the same timestamp as the files added
by `git archive`.

The original file name and time stamp are no longer saved to the
gzip header in resulting $(PACKAGE)-$(VERSION).tar.gz file.

When build environment is close enough to another, this may
provide mutually reproducible release archive files.
This commit is contained in:
Tomi Ollila 2017-12-12 08:39:20 +02:00 committed by David Bremner
parent b09025bce2
commit d11311212e
1 changed files with 3 additions and 2 deletions
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5
Makefile.local
View file

@ -31,11 +31,12 @@ $(TAR_FILE):
fi ; \
git archive --format=tar --prefix=$(PACKAGE)-$(VERSION)/ $$ref > $(TAR_FILE).tmp
echo $(VERSION) > version.tmp
ct=`git --no-pager log -1 --pretty=format:%ct $$ref` ; \
tar --owner root --group root --append -f $(TAR_FILE).tmp \
--transform s_^_$(PACKAGE)-$(VERSION)/_ \
--transform 's_.tmp$$__' version.tmp
--transform 's_.tmp$$__' --mtime=@$$ct version.tmp
rm version.tmp
gzip < $(TAR_FILE).tmp > $(TAR_FILE)
gzip -n < $(TAR_FILE).tmp > $(TAR_FILE)
@echo "Source is ready for release in $(TAR_FILE)"
$(SHA256_FILE): $(TAR_FILE)