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| TryChooser lets you select specific jobs you want to run on [https://wiki.mozilla.org/Build:TryServer tryserver]. You use TryChooser by putting a <tt>try:</tt> block at the end of the topmost commit message when you push to try.
| | #REDIRECT [[ReleaseEngineering/TryServer]] |
| ==Syntax Builder==
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| To simplify using the TryChooser, you can use the [http://trychooser.pub.build.mozilla.org/ TryChooser Syntax Builder] website
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| or the [http://hg.mozilla.org/users/pbiggar_mozilla.com/trychooser/file/tip mercurial extension] (which also functions as a command-line application, but is not maintained by RelEng).
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| ==Usage==
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| <pre>
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| try: OPTIONS
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|
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| Options:
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|
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| -b --build TYPE
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| Choose what type of builds you'd like made:
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| --build d gives debug builds only
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| --build o gives optimized builds only
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| --build do gives both debug and optimized builds
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|
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| -p --platform LIST
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| Choose which platform(s) you'd like to build for with a
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| comma-separated list:
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| linux,linux64,macosx64,win32,android,android-xul,maemo5-gtk,maemo5-qt
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| or specify 'none' or 'all'.
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|
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| -u --unittests LIST
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| Choose which unittests you'd like run:
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| crashtest,reftest,mochitests
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| or give a subset of tests:
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| mochitest-{1,2,3,4,5,o},xpcshell,opengl,jsreftest,mozmill-all
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| or specify 'none' or 'all'.
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|
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| -t --talos LIST
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| Choose which talos suites you'd like to run:
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| tp,tscroll,tspider,etc.
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| or specify 'none' or 'all'.
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| </pre>
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| <pre>
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| Email notification control: (these are optional, default is to get no emails)
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| -e --all-emails (optional)
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| Get notified by email of each builder in the try run's results
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| -f --failure-emails (optional)
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| Get email notifications of each failed builder's results
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| </pre>
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| <pre>
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| Bugzilla commenting:
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| --post-to-bugzilla Bug BUGNUMBER (optional)
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| Get a comment in your specified BUGNUMBER at the end of the try run with a tally of the results and a tbpl link
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| </pre>
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| ==Defaults==
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| If you don't specify an option or if you give an invalid value for an option, TryChooser will use its default for that option:
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| try: --build do
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| --platform all
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| --unittests all
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| --talos none
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| ==Examples==
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| ; <tt>try: -b do -p all -u all -t none</tt>
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| : Run all platforms, all tests, no talos. You probably want to narrow down the test scope though if your change does not affect all platforms and all unit tests.:
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| ; <tt>try: -b do -u crashtest</tt>
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| : Debug and optimized builds, all available platforms, only crashtests, no talos:
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| ; <tt>try: -b d -p linux -u none</tt>
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| : Linux debug build, no unittests, no talos:
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| ; <tt>try: -b do -u all -t chrome,nochrome</tt>
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| : Debug and optimized builds for all platforms, all unittests, select talos:
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| ; <tt>try: -b o -u jsreftest,crashtest,mochitest-1 -t tp4,scroll</tt>
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| : Opt builds on all available platforms, select unittests, select talos
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| ; <tt>try: -b o -u all -n --post-to-bugzilla bug 456234</tt>
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| : Opt builds on all available platforms, all unittests, no emails, results posted to bug 456234
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| You may follow the <tt>try:</tt> section with other text, but be careful to separate the sections with whitespace. That is, do
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| -t chrome,tp4 Some other stuff
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| instead of
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| -t chrome,tp4. Some other stuff
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| ==Workflow==
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| ===Without MQ===
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| If you're not using Mercurial Queues, you can use TryChooser by including a "try:" string in the message of the commit you push to try:
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| $ (edit your code)
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| $ hg commit -m "Bug XXXXXX - Change foo to bar. try: -b d -p all"
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| $ hg push -f ssh://hg.mozilla.org/try
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| ===With MQ===
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| '''Note:''' If you are running Mercurial 2.1 or higher, see [[Build:TryServer#hg_phases|this note]] about phases. ({{bug|725362}})
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| If you're using Mercurial Queues, you can use TryChooser by adding an empty patch with a "try:" string to the top of your queue:
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| hg qgoto your-patch
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| hg qnew -m "try: <Insert options here>" try
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| hg push -f -rtip ssh://hg.mozilla.org/try
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| After pushing, you can remove the empty patch:
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| hg qpop
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| hg qremove try
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| ==FAQ==
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| ===What if I want PGO for my build===
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| Until {{bug|691673}} is resolved, you'll have to do a small hack if you want PGO to work on your try push. Since {{bug|558180}} landed, mozconfig-extra* mozconfigs aren't sourced. You'll need to add "mk_add_options MOZ_PGO=1" to
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| *browser/config/mozconfigs/linux32/nightly
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| *browser/config/mozconfigs/linux64/nightly
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| *browser/config/mozconfigs/win32/nightly
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| as desired. These builds will not report any differently.
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| If you don't have those files in your tree, you'll need to add "mk_add_options MOZ_PGO=1" to the mozconfig-extra-$platform file for Linux, Linux64 and Win32 (as desired)
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| ===What if I don't put "try:" in my commit message?===
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| If you don't give a "try:" string in your commit message, you'll get an error message on attempts to push to try as per {{bug|649402}} where try syntax use was made mandatory.
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| ===What if make a syntax error in my commit message?===
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| If you pass an invalid parameter, TryChooser will ignore it and substitute the default in its place. For instance, if you specify <tt>try: -b f -u crashtest</tt>, you'll get both debug and optimized builds, since "f" is not a recognized argument. You'll only get crashtest run on those builds, however.
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| ===Where's the full list of unit tests and talos tests I can request?===
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| Try should have the same test/talos suites available to it as mozilla-central does so you can refer to [https://tbpl.mozilla.org TBPL] for complete listings.
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| To match up the Talos suite name to the tests it runs you can go [http://hg.mozilla.org/build/buildbot-configs/file/701b6ccd8e55/mozilla-tests/config.py#l19 here]. (eg: 'chrome' runs ts:tdhtml:twinopen:tsspider)
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| If you need help building the syntax line you can also go to the [http://trychooser.pub.build.mozilla.org/ TryChooser Syntax Builder] page.
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| ===What do I do if I need to add or remove a job after I push?===
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| Check out [https://build.mozilla.org/buildapi/self-serve Self Serve!]. With Self-Serve you can cancel pending builds, re-build/run completed builds/test/talos runs.
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| ===Where are my builds/test/talos?===
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| Sometimes TBPL is missing results (e.g. {{bug|590526}}), and sometimes it feels like it's been a while since you kicked the build off and you're getting antsy for results. Here are some things you can look into before pinging the person on buildduty:
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| * Did the build compile successfully? If it didn't, you won't get unittests or talos results.
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| **Look for your directory in [http://ftp.mozilla.org/pub/mozilla.org/firefox/tryserver-builds/ the builds FTP server] and see what has been uploaded. (You can also find here the email-changeset string that you'll need if you end up pinging releng.)
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| * Check [http://build.mozilla.org/builds/running.html Running] and [http://build.mozilla.org/builds/pending.html Pending] to view your build's status. These pages lie less often than TBPL.
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| ==Parsing details==
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| The parser for TryChooser is [http://hg.mozilla.org/build/buildbotcustom/file/tip/try_parser.py here].
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| The basic algorithm is:
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| * The commit message is split on 'try:'.
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| * Whatever follows after 'try:' is passed to try_parser as a string.
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| * The string is processed into a list of args handed to parse_known_args (thus keeping anything that is not a recognized argument from causing errors).
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| The email preferences are parsed out in the [http://hg.mozilla.org/build/buildbotcustom/file/tip/bin/try_mailer.py try_mailer] script, and the --post-to-bugzilla flag is currently a work in progress but will land in the RelEng [http://hg.mozilla.org/build/tools/scripts/autoland tools] repo as part of the [https://wiki.mozilla.org/BugzillaAutoLanding Bugzilla Autolanding] project.
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