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ENT-14061: Make the source and package tarballs reproducible #3166

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ENT-14061: Make the source and package tarballs reproducible #3166

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19 changes: 15 additions & 4 deletions Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,21 @@ masterfilesdir=$(prefix)/masterfiles

EXTRA_DIST = README.md inventory/README.md lib/README.md CONTRIBUTING.md LICENSE CFVERSION modules/promises

# Do not reveal usernames of the buildslave
TAR_OPTIONS = --owner=0 --group=0
# Do not reveal usernames of the buildslave, and emit members in a stable
# order so two builds of the same source tree produce an identical tarball.
TAR_OPTIONS = --owner=0 --group=0 --sort=name
export TAR_OPTIONS

# Store the permissions properly in the tarball for acceptance tests to succeed
# Store the permissions properly in the tarball for acceptance tests to succeed.
# Also normalize directory permissions (which otherwise leak the builder's
# umask) and, when SOURCE_DATE_EPOCH is set, clamp every mtime to it so the
# "make dist" source tarball is reproducible.
dist-hook:
find $(distdir) -name '*.cf*' | xargs chmod go-w
find $(distdir) -type d -exec chmod 755 {} +
if [ -n "$$SOURCE_DATE_EPOCH" ]; then \
find $(distdir) -exec touch -d @$$SOURCE_DATE_EPOCH {} + ; \
fi

tar-package:
pkgdir=`mktemp -d` && export pkgdir && \
Expand All @@ -24,8 +32,11 @@ tar-package:
$(MAKE) prefix=$$pkgdir install && \
( cd $$pkgdir && \
find . -name '*.cf*' | xargs -n1 chmod go-w && \
if [ -n "$$SOURCE_DATE_EPOCH" ]; then \
find . -exec touch -d @$$SOURCE_DATE_EPOCH {} + ; \
fi && \
tardir=. && $(am__tar) | \
GZIP=$(GZIP_ENV) gzip -c \
GZIP=$(GZIP_ENV) gzip -nc \
> "$$origdir"/$(PACKAGE)-$(VERSION)-$(RELEASE).pkg.tar.gz \
) ; \
[ x$$pkgdir != x ] && rm -rf $$pkgdir
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