i3/release.sh
Michael Stapelberg aba6ec3e52
add meson build files (#4094)
Motivation:

• faster builds (on an Intel Core i9-9900K):
  ( ../configure --disable-sanitizers && make -j8; )
  19,47s user 2,78s system 395% cpu 5,632 total

  ( meson .. -Dmans=true -Ddocs=true -Dprefix=/usr && ninja; )
  38,67s user 3,73s system 1095% cpu 3,871 total

• more approachable build system configuration in the
  python-esque meson domain specific language instead of
  the autotools m4 macro language

• built-in language server support thanks to ninja:
  the required compile_commands.json is built automatically
  and only needs to be linked from the source dir, e.g.:
  ln -s build/compile_commands.json .

Changes:

• the embedded vcs version info format changed from e.g.
  4.18-282-gabe46f69 (2020-05-16, branch "next")
  to:
  4.18-282-gabe46f69
  I think it’s better to lose a little bit of detail for
  the gained cleanliness of using meson’s vcs_tag()

• Drop unused xcb-event dependency.

• We can no longer enable sanitizers and debug options
  based on whether we are in a release or non-release build,
  because our new version logic runs at ninja build time,
  not at meson configure time.

  The new behavior is probably for the better in terms of
  what people expect, and we can make the CI use address sanitizer
  explicitly to ensure it is still exercised.

• We lose the AX_EXTEND_SRCDIR behavior, i.e. including the
  path component of the parent of the source dir in all paths.
  This was a trick we used for easier debugging, so that stack
  traces would contain e.g. ../i3-4.18.1/src/main.c, instead of
  just src/main.c.

  The other mechanism (_i3_version symbol) that we have for including
  the version number in the “backtrace full” (but not merely
  “backtrace”) output of gdb still works.

• Release tarballs now use tar.xz. Why not.

Migration plan

This commit adds the meson build files to the tree, but does not remove
autotools yet. For the development phase, we will keep both build systems
functional (and built on travis).

Then, just before the i3 v4.19 release, we will remove autotools from the tree
and the release tarball will require meson to compile.

This way, we incentivize maintainers to change, while also offering them an easy
way out (if desired) by reverting the most recent commit. In practice, switching
a distribution package from autotools to meson should only be a few line change,
easier than applying the provided patch :). Take a look at the debian/ changes
in this commit for an example.

meson is broadly available everywhere that i3 is available: Both xorg-server and
systemd gained meson build files in 2017, so we can follow suit:
https://anholt.livejournal.com/52574.html
https://in.waw.pl/~zbyszek/blog/systemd-meson.html

How do I?

For producing a coverage report, enable the b_coverage meson base option
and run ninja coverage-html:
% cd build
% meson .. -Db_coverage=true
% ninja
% ninja test
% ninja coverage-html
See also https://mesonbuild.com/howtox.html#producing-a-coverage-report

For using the address sanitizer, memory sanitizer or undefined behavior
sanitizer, use the b_sanitize meson base option:
% cd build
% meson .. -Db_sanitize=address
% ninja
See also https://mesonbuild.com/Builtin-options.html#base-options

related to #4086
2020-05-19 14:45:06 +02:00

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#!/bin/zsh
# This script is used to prepare a new release of i3.
export RELEASE_VERSION="4.19"
export PREVIOUS_VERSION="4.18"
export RELEASE_BRANCH="next"
if [ ! -e "../i3.github.io" ]
then
echo "../i3.github.io does not exist."
echo "Use git clone https://github.com/i3/i3.github.io"
exit 1
fi
if ! (cd ../i3.github.io && git pull)
then
echo "Could not update ../i3.github.io repository"
exit 1
fi
if [ ! -e "RELEASE-NOTES-${RELEASE_VERSION}" ]
then
echo "RELEASE-NOTES-${RELEASE_VERSION} not found."
exit 1
fi
if git diff-files --quiet --exit-code debian/changelog
then
echo "Expected debian/changelog to be changed (containing the changelog for ${RELEASE_VERSION})."
exit 1
fi
eval $(gpg-agent --daemon)
export GPG_AGENT_INFO
################################################################################
# Section 1: update git and build the release tarball
################################################################################
STARTDIR=$PWD
TMPDIR=$(mktemp -d)
cd $TMPDIR
if ! wget https://i3wm.org/downloads/i3-${PREVIOUS_VERSION}.tar.bz2; then
echo "Could not download i3-${PREVIOUS_VERSION}.tar.bz2 (required for comparing files)."
exit 1
fi
git clone --quiet --branch "${RELEASE_BRANCH}" https://github.com/i3/i3
cd i3
if [ ! -e "${STARTDIR}/RELEASE-NOTES-${RELEASE_VERSION}" ]; then
echo "Required file RELEASE-NOTES-${RELEASE_VERSION} not found."
exit 1
fi
git checkout -b release-${RELEASE_VERSION}
cp "${STARTDIR}/RELEASE-NOTES-${RELEASE_VERSION}" "RELEASE-NOTES-${RELEASE_VERSION}"
git add RELEASE-NOTES-${RELEASE_VERSION}
git rm RELEASE-NOTES-${PREVIOUS_VERSION}
sed -i "s/^\s*version: '${PREVIOUS_VERSION}'/ version: '${RELEASE_VERSION}'/" meson.build
git commit -a -m "release i3 ${RELEASE_VERSION}"
git tag "${RELEASE_VERSION}" -m "release i3 ${RELEASE_VERSION}" --sign --local-user=0x4AC8EE1D
mkdir build
(cd build && meson .. && ninja dist)
cp build/meson-build/i3-${RELEASE_VERSION}.tar.xz .
echo "Differences in the release tarball file lists:"
diff --color -u \
<(tar tf ../i3-${PREVIOUS_VERSION}.tar.xz | sed "s,i3-${PREVIOUS_VERSION}/,,g" | sort) \
<(tar tf i3-${RELEASE_VERSION}.tar.xz | sed "s,i3-${RELEASE_VERSION}/,,g" | sort)
gpg --armor -b i3-${RELEASE_VERSION}.tar.xz
echo "${RELEASE_VERSION}-non-git" > I3_VERSION
git add I3_VERSION
git commit -a -m "Set non-git version to ${RELEASE_VERSION}-non-git."
if [ "${RELEASE_BRANCH}" = "master" ]; then
git checkout master
git merge --no-ff release-${RELEASE_VERSION} -m "Merge branch 'release-${RELEASE_VERSION}'"
git checkout next
git merge --no-ff -s recursive -X ours -X no-renames master -m "Merge branch 'master' into next"
else
git checkout next
git merge --no-ff release-${RELEASE_VERSION} -m "Merge branch 'release-${RELEASE_VERSION}'"
git checkout master
git merge --no-ff -s recursive -X theirs -X no-renames next -m "Merge branch 'next' into master"
fi
git remote remove origin
git remote add origin git@github.com:i3/i3.git
git config --add remote.origin.push "+refs/tags/*:refs/tags/*"
git config --add remote.origin.push "+refs/heads/next:refs/heads/next"
git config --add remote.origin.push "+refs/heads/master:refs/heads/master"
################################################################################
# Section 2: Debian packaging
################################################################################
cd "${TMPDIR}"
mkdir debian
# Copy over the changelog because we expect it to be locally modified in the
# start directory.
cp "${STARTDIR}/debian/changelog" i3/debian/changelog
(cd i3 && git add debian/changelog && git commit -m 'Update debian/changelog')
cat > ${TMPDIR}/Dockerfile <<EOT
FROM debian:sid
RUN sed -i 's,^deb \(.*\),deb \1\ndeb-src \1,g' /etc/apt/sources.list
RUN apt-get update && apt-get install -y dpkg-dev devscripts
COPY i3/i3-${RELEASE_VERSION}.tar.xz /usr/src/i3-wm_${RELEASE_VERSION}.orig.tar.xz
WORKDIR /usr/src/
RUN tar xf i3-wm_${RELEASE_VERSION}.orig.tar.xz
WORKDIR /usr/src/i3-${RELEASE_VERSION}
COPY i3/debian /usr/src/i3-${RELEASE_VERSION}/debian/
RUN mkdir debian/source
RUN echo '3.0 (quilt)' > debian/source/format
WORKDIR /usr/src
RUN mk-build-deps --install --remove --tool 'apt-get --no-install-recommends -y' i3-${RELEASE_VERSION}/debian/control
WORKDIR /usr/src/i3-${RELEASE_VERSION}
RUN dpkg-buildpackage -sa -j8
RUN dpkg-buildpackage -S -sa -j8
EOT
CONTAINER_NAME=$(echo "i3-${TMPDIR}" | sed 's,/,,g')
docker build --no-cache -t i3 .
for file in $(docker run --name "${CONTAINER_NAME}" i3 /bin/sh -c "ls /usr/src/i3*_${RELEASE_VERSION}*")
do
docker cp "${CONTAINER_NAME}:${file}" ${TMPDIR}/debian/
done
echo "Content of resulting packages .changes file:"
cat ${TMPDIR}/debian/*.changes
# debsign is in devscripts, which is available in fedora and debian
debsign --no-re-sign -k4AC8EE1D ${TMPDIR}/debian/*.changes
# TODO: docker cleanup
################################################################################
# Section 3: website
################################################################################
# Ensure we are in the correct branch for copying the docs.
cd ${TMPDIR}/i3
git checkout ${RELEASE_BRANCH}
cd ${TMPDIR}
git clone --quiet ${STARTDIR}/../i3.github.io
cd i3.github.io
mkdir docs/${PREVIOUS_VERSION}
tar cf - '--exclude=[0-9]\.[0-9e]*' docs | tar xf - --strip-components=1 -C docs/${PREVIOUS_VERSION}
git add docs/${PREVIOUS_VERSION}
git commit -a -m "save docs for ${PREVIOUS_VERSION}"
cp ${TMPDIR}/i3/i3-${RELEASE_VERSION}.tar.xz* downloads/
git add downloads/i3-${RELEASE_VERSION}.tar.xz*
cp ${TMPDIR}/i3/RELEASE-NOTES-${RELEASE_VERSION} downloads/RELEASE-NOTES-${RELEASE_VERSION}.txt
git add downloads/RELEASE-NOTES-${RELEASE_VERSION}.txt
sed -i "s,<h2>Documentation for i3 v[^<]*</h2>,<h2>Documentation for i3 v${RELEASE_VERSION}</h2>,g" docs/index.html
sed -i "s,<span style=\"margin-left: 2em; color: #c0c0c0\">[^<]*</span>,<span style=\"margin-left: 2em; color: #c0c0c0\">${RELEASE_VERSION}</span>,g" index.html
sed -i "s,The current stable version is .*$,The current stable version is ${RELEASE_VERSION}.,g" downloads/index.html
sed -i "s,<tbody>,<tbody>\n <tr>\n <td>${RELEASE_VERSION}</td>\n <td><a href=\"/downloads/i3-${RELEASE_VERSION}.tar.xz\">i3-${RELEASE_VERSION}.tar.xz</a></td>\n <td>$(LC_ALL=en_US.UTF-8 ls -lh ../i3/i3-${RELEASE_VERSION}.tar.xz | awk -F " " {'print $5'} | sed 's/K$/ KiB/g' | sed 's/M$/ MiB/g')</td>\n <td><a href=\"/downloads/i3-${RELEASE_VERSION}.tar.xz.asc\">signature</a></td>\n <td>$(date +'%Y-%m-%d')</td>\n <td><a href=\"/downloads/RELEASE-NOTES-${RELEASE_VERSION}.txt\">release notes</a></td>\n </tr>\n,g" downloads/index.html
git commit -a -m "add ${RELEASE_VERSION} release"
for i in $(find _docs -maxdepth 1 -and -type f -and \! -regex ".*\.\(html\|man\)$" -and \! -name "Makefile")
do
base="$(basename $i)"
[ -e "${TMPDIR}/i3/docs/${base}" ] && cp "${TMPDIR}/i3/docs/${base}" "_docs/${base}"
done
sed -i "s,Verify you are using i3 ≥ .*,Verify you are using i3 ≥ ${RELEASE_VERSION},g" _docs/debugging
(cd _docs && make)
for i in $(find _docs -maxdepth 1 -and -type f -and \! -regex ".*\.\(html\|man\)$" -and \! -name "Makefile")
do
base="$(basename $i)"
[ -e "${TMPDIR}/i3/docs/${base}" ] && cp "_docs/${base}.html" docs/
done
git commit -a -m "update docs for ${RELEASE_VERSION}"
git remote remove origin
git remote add origin git@github.com:i3/i3.github.io.git
git config --add remote.origin.push "+refs/heads/master:refs/heads/master"
################################################################################
# Section 4: prepare release announcement email
################################################################################
cd ${TMPDIR}
cat >email.txt <<EOT
From: Michael Stapelberg <michael@i3wm.org>
To: i3-announce@freelists.org
Subject: i3 v${RELEASE_VERSION} released
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Hi,
I just released i3 v${RELEASE_VERSION}. Release notes follow:
EOT
cat ${TMPDIR}/i3/RELEASE-NOTES-${RELEASE_VERSION} >>email.txt
################################################################################
# Section 5: final push instructions
################################################################################
echo "As a final sanity check, install the debian package and see whether i3 works."
echo "When satisfied, run:"
echo " cd ${TMPDIR}/i3"
echo " git checkout next"
echo " vi debian/changelog"
echo " git commit -a -m \"debian: update changelog\""
echo " git push"
echo ""
echo " cd ${TMPDIR}/i3.github.io"
echo " git push"
echo ""
echo " cd ${TMPDIR}/debian"
echo " dput"
echo ""
echo " cd ${TMPDIR}"
echo " sendmail -t < email.txt"
echo ""
echo "Update milestones on GitHub (only for new major versions):"
echo " Set due date of ${RELEASE_VERSION} to $(date +'%Y-%m-%d') and close the milestone"
echo " Create milestone for the next major version with unset due date"
echo ""
echo "Announce on:"
echo " twitter"
echo " google+"
echo " #i3 topic"
echo " reddit /r/i3wm"