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- Here are the steps to follow to create a new cairo release:
- 1) Ensure that there are no local, uncommitted/unpushed mods.
- You're probably in a good state if both "git diff
- HEAD" and "git log master..origin/master" give no output. Also make
- sure you have libglib2.0-doc installed (else you'll get
- excessive gtk-doc cross reference warnings in the next step).
- 2) Verify that the code passes "make distcheck"
- First, make sure you have 'nm' and 'readelf' commands in PATH.
- this should be OK with any Linux distro.
- Running "make distcheck" should result in no warnings or
- errors and end with a message of the form:
- =============================================
- cairo-X.Y.Z archives ready for distribution:
- cairo-X.Y.Z.tar.gz
- =============================================
- (But the tar file isn't actually ready yet, as we still have
- some more steps to follow).
- Note that it's allowed (and perhaps recommended) to run the
- "make distcheck" step against an all-software X server such as
- Xvfb to avoid getting tripped up by any X-server-driver-specific
- bugs. See test/README for details
- If you get errors about local PLT entries, you get the list of
- cairo entries with the error. For each of these, a call to
- slim_hidden_def and slim_hidden_proto is needed in the cairo
- implementation in the style of other similar calls.
- In the unfortunate case that you have to push a snapshot out
- (note, I said snapshot, not release) without the entire test
- suite passing, here's the magic env vars to set when doing
- 'make distcheck' and 'make release-publish' that will let you
- get away with it. At any cost, never ever release without
- (implied) distchecking. Every time we got around it, it turned
- out to be a disaster. Anyway, here's the pass code:
- DISPLAY= CAIRO_TEST_TARGET=" "
- 3) Decide what the new version number for the release will be.
- There are three types of releases: Minor, Micro, and
- Snapshot. Micro releases should be only bugfixes and no API
- additions. If there are API additions consider making a Minor
- release. Snapshot releases can be done of the current
- development tree between Minor releases, as desired.
- Cairo uses even numbers for official releases, and odd numbers
- for development snapshots. Thus, for a Minor release it would
- be:
- LAST_RELEASE="X.Y.Z" # e.g. 1.12.0
- THIS_RELEASE="X.Y+2.0" # e.g. 1.14.0
- While for a Micro release the version numbers should be:
- LAST_RELEASE="X.Y.Z" # e.g. 1.14.0
- THIS_RELEASE="X.Y.Z+2" # e.g. 1.14.2
- Snapshots are similar but have odd minor versions. Also, the
- first snapshot release in a new series will be .2 rather than
- .0, e.g.:
- LAST_RELEASE="X.Y.Z" # e.g. 1.14.0
- THIS_RELEASE="X.Y+1.0" # e.g. 1.15.2
- and subsequent snapshots in that series are just normal micro
- releases:
- LAST_RELEASE="X.Y.Z" # e.g. 1.15.2
- THIS_RELEASE="X.Y.Z+2" # e.g. 1.15.4
- 4) Fill out an entry in the NEWS file
- Sift through the logs since the last release. This is most
- easily done with a command such as:
- git log --stat ${LAST_RELEASE}..
- Summarize major changes briefly in a style similar to other
- entries in NEWS. Take special care to note any additions in
- the API. These should be easy to find by noting modifications
- to .h files in the log command above. And more specifically,
- the following command will show each patch that has changed a
- public header file since the given version:
- find src/ -name '*.h' ! -name '*-private.h' \
- ! -name 'cairoint.h' ! -name 'cairo-*features*.h' | \
- xargs git diff ${LAST_RELEASE}.. --
- Include a link to the incremental ChangeLog for this release,
- which we'll be uploading in a later step:
- http://cairographics.org/releases/ChangeLog.cairo-${THIS_RELEASE}
- 4) Increment cairo_version_{minor|micro} in cairo-version.h:
- If there are backward-incompatible changes in the API, stop
- now and don't release. Go back and fix the API instead. Cairo
- is intended to remain backwards-compatible as far as API.
- So cairo_version_major will not be incremented unless we come
- up with a new versioning scheme to take advantage of it.
- If there are API additions, then increment cairo_version_minor
- and reset cairo_version_micro to 0. NOTE: The minor version is
- only incremented for releases, not for snapshots.
- Otherwise, (i.e. there are only bug fixes), increment
- cairo_version_micro to the next larger (even) number.
- 5) Commit the changes to NEWS and cairo-version.h
- It's especially important to mention the new version number in your
- commit log.
- 6) Run "make release-publish" which will perform the following steps
- for you:
- * Generate ChangeLog files out of git repository
- * Check that ChangeLog files were generated properly
- * Check that the version number ends with an even micro component
- * Check that no release exists with the current version
- * Verify that make distcheck completes successfully
- * Generate the final tar file
- * Generate an sha1sum file
- * Sign the sha1sum using your GPG setup (asks for your GPG password)
- * scp the three files to appear on http://cairographics.org/releases
- * Generate a versioned manual and upload it to appear as both:
- http://cairographics.org/manual-${THIS_RELEASE}
- http://cairographics.org/manual
- * Place local copies of the three files in the releases directory
- * Create a LATEST-package-version file (after deleting any old one)
- * Tag the entire source tree with a ${THIS_RELEASE} tag, and sign
- the tag with your GPG key (asks for your GPG password, and you
- may need to set GIT_COMMITTER_NAME and GIT_COMMITTER_EMAIL to match
- your public-key's setting or this fails.)
- * Provide some text for the release announcement (see below).
- If for some reason you lost this message, "make release-publish-message"
- prints it for you.
- Upload the incremental ChangeLog generated by the above:
- scp ChangeLog.cache-${LAST_RELEASE}.. \
- cairographics.org:/srv/cairo.freedesktop.org/www/releases/ChangeLog.cairo-${THIS_RELEASE}
- To undo a release-publish, before you've sent any emails or
- pushed changes to master, delete the locally created tag (git
- tag -d ${THIS_RELEASE}); then log into the webserver, repoint
- the manual and LATEST-cairo-${THIS_RELEASE} symlinks to the
- previous versions, remove manual-${THIS_RELEASE} and
- release/cairo-${THIS_RELEASE}.
- 7) Update trunk (or the stable branch) version number.
- For Micro releases (X.Y.Z), increment cairo_version_micro to the
- next larger (odd) number in cairo-version.h, commit, and push.
- For Minor releases (X.Y.0), increment cairo_version_minor to the
- next larger (odd) number, and set cairo_version_micro to 1. Then
- commit and push.
- 8) Push the new tag out to the central tree with a command like:
- git push origin master ${THIS_RELEASE}
- 9) Edit the cairo bugzilla product and add the new version numbers.
- Note that you need to add two versions. One for the
- release/snapshot (with an even micro version), another with the
- post-release version (with an odd micro version).
- 10) Send out an announcement message.
- Send a message to cairo-announce@cairographics.org and CC
- cairo@cairographics.org, gnome-announce-list@gnome.org and
- ftp-release@lists.freedesktop.org (pr@lwn.net as well for major
- releases) to announce the new release using the text provided from
- "make release-publish", adding the excerpt from NEWS and
- the shortlog of all changes since last release, generated by:
- git shortlog ${LAST_RELEASE}...
- 11) Add the announcement to the NEWS page and the front page.
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