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From 5169769e0f84dd227592cb73da97dacd61ae40b9 Mon Sep 17 00:00:00 2001
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From: Julian Andres Klode <julian.klode@canonical.com>
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Date: Mon, 14 Nov 2022 12:16:29 +0100
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Subject: [PATCH 11/13] make-archive: Build reproducible tarball
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Remove timestamps, user names, etc. from the tarball so that
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it can be built reproducibly by multiple people, on different
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machines.
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The outer bzip2 layer might still be different, no reproducible
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bzip2 known.
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Signed-off-by: Julian Andres Klode <julian.klode@canonical.com>
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---
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make-archive | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/make-archive b/make-archive
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index d4f095f0a46..9ae9eef077a 100755
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--- a/make-archive
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+++ b/make-archive
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@@ -86,14 +86,16 @@ main() {
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cd ..
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if [ "x" = "x${SHIM_GIT_TAG}" ] ; then
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git archive --format=tar "$(git log -1 --pretty=format:%h)" | ( cd "${ARCHIVE_DIR}/shim-${VERSION}" ; tar x )
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+ TIMESTAMP=0
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else
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# ORIGIN doesn't yet have this tag
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git archive --format=tar "${SHIM_GIT_TAG}" | ( cd "${ARCHIVE_DIR}/shim-${VERSION}" ; tar x )
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+ TIMESTAMP=$(git log -1 --pretty=%ct "${SHIM_GIT_TAG}")
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fi
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git log -1 --pretty=format:%H > "${ARCHIVE_DIR}/shim-${VERSION}/commit"
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DIR="$PWD"
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cd "${ARCHIVE_DIR}"
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- tar -c --bzip2 -f "${DIR}/shim-${VERSION}.tar.bz2" "shim-${VERSION}"
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+ tar -c --sort=name --mtime="@${TIMESTAMP}" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --bzip2 -f "${DIR}/shim-${VERSION}.tar.bz2" "shim-${VERSION}"
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rm -rf "${ARCHIVE_DIR}"
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echo "The archive is in shim-${VERSION}.tar.bz2"
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exit 0
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--
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2.37.1
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