* Minor release checklist::
* Major release checklist::
* Release extra notes::
+* Notes on builds with GUB::
@end menu
@enumerate
@item
-Switch to the release branch, get changes, prep release
-announcement. This requires a clean index and work tree. If the
-checkout displays modified files, you might want to run @code{git reset
---hard} before continuing.
+Using any system with git pull access (not necessarily the GUB
+build machine), use the commands below to switch to the release
+branch, get changes and prepare the release
+announcement. This requires a system which has the release/unstable
+branch. If you get a warning saying you are in @code{detached HEAD}
+state, then you should create a release/unstable branch with
+@code{git checkout release/unstable}.
+
+Check the environment variables are set as in
+@ref{Environment variables}.
+
+You need to ensure you have a clean index and work tree. If the
+checkout displays modified files, you might want to run
+@code{git reset --hard} before continuing.
@example
git fetch
-git checkout origin/release/unstable
-git merge origin
-make po-replace
-vi Documentation/web/news-front.itexi Documentation/web/news.itexi
+git checkout release/unstable
+git merge origin/master
+make -C $LILYPOND_BUILD_DIR po-replace
+mv $LILYPOND_BUILD_DIR/po/lilypond.pot po/
+gedit Documentation/web/news-front.itexi Documentation/web/news.itexi
@end example
@item
@enumerate
-@item Switch back to master and get the updated news:
+@item Update the current staging branch with the current news:
@example
+git fetch
git checkout origin/staging
git merge origin/release/unstable
@end example
git push origin HEAD:staging
@end example
+If the push fails with a message like
+
+@example
+ ! [rejected] HEAD -> staging (non-fast-forward)
+@end example
+
+@noindent
+it means that somebody else updated the staging branch while you were
+preparing your change. In that case, you need to restart the Post
+Release process. Otherwise, proceed:
@item (for now) do a @code{make doc} and manually upload:
Update lilypond.pot:
@example
-make po-replace
+make -C $LILYPOND_BUILD_DIR po-replace
+mv $LILYPOND_BUILD_DIR/po/lilypond.pot po/
@end example
@item
@end enumerate
+@node Notes on builds with GUB
+@section Notes on builds with GUB
+
+@subsubheading Building GUB
+
+GUB - the Grand Unified Builder - is used to build the release
+versions of LilyPond. For background information, see
+@ref{Grand Unified Builder (GUB)}. The simplest way to set up a
+GUB build environment is to use a virtual machine with LilyDev
+(@ref{LilyDev}). Follow the instructions on that page to set this
+up. Make sure that your virtual machine has enough disk space -
+a GUB installation takes over 30 GBytes of disk space, and if you
+allocate too little, it will fail during the setting up stage and
+you will have to start again. 64 GBytes should be sufficient.
+
+While GUB is being built, any interruptions are likely to make it
+almost impossible to restart. If at all possible, leave the build
+to continue uninterrupted.
+
+Download GUB and start the set up:
+
+@example
+git clone git://github.com/gperciva/gub/gub.git
+cd gub
+make bootstrap
+@end example
+This will take a very long time, even on a very fast computer.
+You will need to be patient. It's also liable to fail - it
+downloads a number of tools, and some will have moved and others
+won't respond to the network. For example, the perl archive.
+If this happens, download it from
+@uref{http://www.cpan.org/src/5.0/perl-5.10.0.tar.gz}, saving the
+archive to @file{gub/downloads/perl/}. Continue the set up with:
+
+@example
+make bootstrap
+@end example
+
+Once this has completed successfully, you can build the LilyPond
+release package. However, this uses an archived version of the
+regression tests, so it is better to download this first.
+Download the test output from lilypond.org (you will need to
+replace @code{2.15.33-1} with the latest build):
+
+@smallexample
+@uref{http://lilypond.org/download/binaries/test-output/lilypond-2.15.33-1.test-output.tar.bz2}
+@end smallexample
+
+Copy the tarball into @file{gub/regtests/}, and tell the build
+system that you have done this:
+
+@example
+touch regtests/ignore
+@end example
+
+Now start the GUB build:
+
+@example
+make lilypond
+@end example
+
+That's it. This will build LilyPond from current master. To build
+the current unstable release, run:
+
+@example
+make LILYPOND_BRANCH=release/unstable lilypond
+@end example
+
+The first time you do this, it will take a very long time.
+
+Assuming the build has gone well, it can be uploaded using:
+
+@example
+make lilypond-upload
+ LILYPOND_BRANCH=release/unstable
+ LILYPOND_REPO_URL=git://git.sv.gnu.org/lilypond.git
+@end example
+
+@subsubheading Output files
+
+GUB builds the files it needs into the directory
+@code{gub/target/}. As a general rule, these don't need to be
+touched unless there is a problem building GUB (see below).
+The files to be uploaded are in @code{gub/uploads/}. Once the
+build has completed successfully, there should be 8
+installation files and 3 archives, totalling about 600MB.
+There are also 4 directories:
+
+@example
+gub/signatures
+gub/localdoc
+gub/webdoc
+gub/webtest
+@end example
+
+@code{signatures} contains files that are used to track whether
+some of the archives have already been built. Don't touch
+these.
+
+@code{localdoc} probably contains local copies of the
+documentation.
+
+@code{webdoc} contains the documentation to be uploaded.
+
+@code{webtest} contains the regtest comparison, which should
+be checked before upload, and is also uploaded for subsequent
+checking.
+
+The total upload is about 700 MB in total, and on an ADSL
+connection will take about 4 hours to upload.
+
+@subsubheading Subsequent builds
+
+In principle, building the next release of LilyPond requires
+no action other then following the instructions in
+@ref{Minor release checklist}. Because much of the
+infrastructure has already been built, it will take much less
+time - about an hour on a fast computer.
+
+Continuing to build LilyPond without any other
+archiving/deletion of previous builds is likely to be successful,
+but will take up a fair amount of disk space (around 2GB per
+build) which may be a problem with a Virtual Machine. It's
+therefore recommended to move (not copy) @code{gub/uploads} to
+another machine/disk after each build, if space is at a premium.
+
+However, if a significant change has been made to the LilyPond
+source (e.g. added source files) the build may fail if tried on
+top of a previous build. If this happens, be sure to
+move/delete @code{gub/uploads} and all mentions of LilyPond
+in @code{gub/target}. The latter can be achieved with this
+command:
+
+@example
+rm -rf target/*/*/*lilypond*
+@end example
+Be @emph{very} careful with this command. Typing it wrongly
+could wipe your disk completely.
+
+@subsubheading Updating the web site
+
+The @code{make lilypond-upload} command updates the documentation
+on the LilyPond web site. However, it does @emph{not} update
+any part of the site that is not part of the documentation - for
+example, the front page (@code{index.html}). The website is
+updated by 2 cron jobs running on the web server. One of these
+pulls git master to the web server, and the other makes the
+website with the standard @code{make website} command. They run
+hourly, 30 minutes apart. So - to update the front page of the
+website, it's necessary to update @code{VERSION} and
+@code{news-front.itexi} in master and then wait for the cron
+jobs to run. (N.B. - this is done by pushing the changes to
+staging and letting patchy do its checks before it pushes to
+master).
projects / lilypond.git / blobdiff