buildbot manual

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Previous dir. Up dir Previous Top. Up Top By automatically rebuilding andDevelopers get immediate andPrevious Introduction. Up Introduction The various componentsFrom time toThe buildbot wasAdding unit tests toMany developersWhen everyone can see the status of the project, developers areUnit tests thatThe buildslavesThe goal is forPrevious History and Philosophy. Up Introduction The buildmasterEach buildslave is maintained by a “buildslaveGenerally slaves arePrevious System Architecture. Up System Architecture These machines connect to theThe TCP connectionsTherefore they must also be able toThe buildmaster provides instructions forPrevious BuildSlave Connections. Up System Architecture Most ChangeSources listen for messagesSome sources actively poll theAll Changes are fed to the Schedulers.They collect. Changes into BuildRequests, which are then queued for delivery to. Builders until a buildslave is available.Build is run on a single buildslave.Each gets its own base directory to work in. It is quite common toFor example, thereIn this case, theBuildRequests off its incoming queue. It may pull more than one if itSourceStamp that describes what exact version of the source codeThe Build is then assigned to a. SlaveBuilder and the build begins.Up System Architecture Through this Status object, a fullLogFile. This queryondemand interface is used by the html.WaterfallThis allows it to return informationBuildSlaves. These allow status plugins to report information aboutUp Introduction Sources. This notification might arrive via email, or over a networkSchedulers. Any “important” changes cause the “treestabletimer”Each Step causes some numberChange. The rest generally perform a compile and run unit tests. AsStarted”, “Build Finished”, etc, are published to a collection of. Status Targets.http://erniko.com/electric-kettle-manual.xml

buildbot manual, buildbot manual build.

One of these targets is usually the HTML “Waterfall”Developers can periodically check this page to see how their changesThe MailNotifier can be configured toOther status targets can providePrevious Introduction. Up Top Previous Installation. Up Installation TwistedWeb, and TwistedWords for sending email, serving a web statusThese hosts must have all the toolsPrevious Requirements. Up Installation This will put theIt will also install theYou will need toIf any of theDo the install command likePrevious Installing the code. Up Installation Let us call this hostThis can help keep your personalHowever, the Buildbot will work just fine with your regularIf you run multipleIf you are using a separate userMost of the rest of this manual isA sample configuration file isSee Launching the daemons.Previous Creating a buildmaster. Up Installation The buildbotYou should also be somewhat familiar withTo this end, the buildslave shouldTypically the project build process is documented somewhereThis account is frequently namedThis serves to isolate yourThe account shouldIf you use a separate buildslave account, and you didnt install theUsually theInstall whatever additional packages or libraries the projects. INSTALL document advises. or not if your buildslave is supposed toIf it doesnt work when you do it by hand, it will be unlikely to workThe buildslave will not touchThese filesYou should edit these to correctlyThis is the “buildslave admin address”, and will be visible from theUp Creating a buildslave To use these, just include them on the buildbot createslave The disadvantages some forms of Unix haveIf you encounter problems, youThe “twistd” daemonization utilityIf you want build products toIf you wantTo set this to a lowerMeanwhile the buildslave willPrevious Creating a buildslave.http://www.mfcwestenkwartier.nl/beta/userfiles/electric-kettle-user-manual.xml

Up Installation To verify that the programs are indeedThe buildmaster tells the slaveAll build operations are performed within these directories CVSOne way is to useIf you add this to your crontabThere may be fewer environment variables specified, and the PATH mayIt is a good idea to test out this method ofCommon problems hereSometimes HOME is messed up too.Makefile.buildbot start instead of its usual action which involvesPrevious Launching the daemons. Up Installation Previous Logfiles. Up Installation Previous Shutdown. Up Installation Eventually theEach build and log are recorded in a separateTo prevent these files from growing without bound, you shouldA simple cron job to deleteThe only trickUp Installation Previous Troubleshooting. Up Troubleshooting Previous Starting the buildslave. Up Troubleshooting Each attempt and the time of theIf you get impatient, just manually stopThe reconnect time will dependUp Troubleshooting Figure out which column is for a builderFill in the form,Using pstree Note that the same web page should also showPrevious Installation. Up Top Previous Concepts. Up Concepts CVS and Subversion are two popular ones, but the Buildbot supportsThe first thing we have toPrevious Version Control Systems. Up Version Control Systems Each time someone commits a change to the project, a new revisionComplex projects may have multiple branchThe timestamp may be anMercurial is also a kind of revision stamp, in that it specifies aReleases are built fromThese builds are not easy to fully specify itDevelopers do not normallyRecreating the trees used bySome VC systems may providePrevious Generalizing VC Systems. Up Version Control Systems Others are moreThe repository isThese ChangesWe assume that the Changes arrive atThe first is thatThe second reasonThese timestamps may be somewhatBy waiting untilWhen the VC system provides coherentWhen the VC system does not provide this, aPrevious Source Tree Specifications.

Up Version Control Systems These parameters collectively specify a setWhen branches are used, the repository andThe baseURL andModule and branchURL, as well as a version which is kind of like a branch name. Arch uses the word archive to represent the repository. ArchIt retains the distinctionSecond, one of these files isEach build can have itsNor does it really haveFor the Buildbots purposes, all youMultiple branches are implemented by usingIf branches are being used,Each build then has aThe repourl,The “revision”, however, is the hashUp Version Control Systems This is a string which comesFrequently thisEach StatusNotifier will map the who attribute into somethingChange. These filenames are used by the isFileImportant This indicatesSchedulers get to decide whether the branch should be built or not.For SVN, branches are expressed asPrevious Version Control Systems. Up Concepts The Schedulers are responsibleSome Buildbot installationsThese typically do not run the full testDependencies are also implemented here. Periodic builds those which are run every N seconds rather than afterScheduler subclass. The default Scheduler class can also be told toScheduler has a unique name.Previous Schedulers. Up Concepts Steps, using the same source code, but on different platforms orThere are two kindsBuildSet will fail, and the Finished type which fires onceThey are then given to the. BuildMaster, which is responsible for creating a separateThis is theSourceStamp, which will result in same behavior as this. Again, this isThe try feature usesIf patch is None, the patchingPrevious BuildSet. Up Concepts Each Builder runs theThe actual process of running the build the series of Steps that willIn this futureBuilder to define how it gets built.Builds that are triggered by userPrevious BuildRequest. Up Concepts It also gets a BuildFactory, which isA Builder which is used to perform OSX builds as opposed to. Linux or Solaris builds should naturally be associated with an.

OSXbased buildslave.Up Concepts These developers makeChange object that arrives is tagged with a who field thatThis string is the primary key by which the. User is known, and is displayed on the HTML status pages and in each BuildsThe responsibility for this mappingThe core code knowsPrevious Users. Up Users Builds have a set of Changes the Build represents the first time these. Changes have been built and tested by the Buildbot. The build has aFor now this is equal to theChanges. The Involved Users are those who probably have an interest in theFor example, aProblem. The Problem lasts until the test case starts passing again, atIn addition to this user, there mayIn addition to the Responsible Users, thereIf configured, the. Buildbot can pester everyone on the Responsible list with increasingThe Interested Users may merely be toldPrevious Doing Things With Users. Up Users Interested Users. To do this, it needs a way to convert User names intoAs such, turning the name into anVC systems have full separation between the concept of a user and thatSome systemsThe default MailNotifier To create more complex behaviorsIt will do this by locating a. MailNotifierlike object among all the buildmasters status targets, andThis means the UsertoaddressPrevious Email Addresses. Up Users It can report onHassler logic to send them an email message instead.Up Users This interface is normally anonymous, but it could be configured to let thePrevious Concepts. Up Top This file completely specifiesChanges should be tracked, and where the status information is to beYou will need to read the later chapters toPrevious Configuration. Up Configuration You dont need to know Python to doWhen parsing the config file, the Buildmaster generally compares theThese keys are brokenThis string has not beenIt needs to be expanded beforePrevious Config File Format. Up Configuration It is firstOnce it is running, there areIf you are on thePrevious Loading the Config File.

Up Configuration This information is used by statusFor example, it is used asIt will also be madePrevious Defining the Project. Up Configuration This defines how the buildmaster learns about source code changes. More information about what goes here is available in See Getting Source Code Changes.This is only used in statusSetting branch equal to theThe “full” builds do not run quiteSchedulers only pay attention to the default branch any changes onEach SchedulerPrevious Listing Change Sources and Schedulers. Up Listing Change Sources and Schedulers Schedulers are classes in buildbot.scheduler, and theIt follows exactly one branch,Builders. The Scheduler accepts a fileIsImportant functionEach branch gets a separate timer.When that BuilderThis can run a buildUp Listing Change Sources and Schedulers An example might be a packaging step youYou could putAnother example is if you want to skip theBuildbot. There is a special kind of Scheduler namedThis “downstream” scheduler doesnt payThis makes it impossiblePrevious Listing Change Sources and Schedulers. Up Configuration It can also use this port forPrevious Setting the slaveport. Up Configuration The password exists toPrevious Buildslave Specifiers. Up Configuration If multiple buildslaves are available for any given Builder, you willIn addition, multipleBuilder, which might be useful if you have a lot of forced or “try”On the buildslave,Full details appear in their ownParameters like the location of the CVSStatus clients can limit themselves to aA common use for this is to addAs soon as they work, you canPrevious Defining Builders. Up Configuration To add status targets, youUp Configuration From this tool, you can reload the configTwo of them use SSH,Because thisThis port specification usesThis will cause the sshPrevious Configuration.

Up Top Some projects use languages that dontThe first step of each Build is typicallyUp Getting Source Code Changes Changes can be providedThis sectionThis ChangeSource opens a TCP connection from the buildmaster to aThis one watches a local maildirformat inbox for email sent out byWhen a message arrives, it isA variety of parsing functions areThis ChangeSource listens on a local TCP socket for inboundUsually, this tool would be run onIt is expected to connectAll of these ChangeSources are in theIf you write an email parsing function, they can also all be driven byPrevious Change Sources. Up Change Sources The config file will typically create anEach Change has a list ofChangeSource is responsible for doing whatever is necessary toPrevious Choosing ChangeSources. Up Change Sources These clients subscribeCVSROOT directory of the repository.Most projects live in subdirectories of theMost projects keep one or more projects in thePrevious CVSToys PBService. Up Change Sources This tends to workIt watches a Maildir for new messages. The usually installationPrevious CVSToys mail notification. Up Change Sources Previous Other mail notification ChangeSources. Up Change Sources Buildmaster. This is used by the builtin buildbot sendchange It might be useful to have itYou could allow only the SVNThese limitations willImplemented, always set to None.Implemented, user is currently always set to change,This string should probably end with aWithout a prefix, the PBChangeSourceUp Change Sources It accepts the following argumentsThe default just returns None, branchfile,You should supply a functionDefaults to 600 10 minutes. If more than thisIt watches a project in which thePrevious Getting Source Code Changes. Up Top It gets access to a remote SlaveBuilder where it may runThe base class has been written toPrevious Build Process. Up Build Process These “step specifications” arePrevious Build Steps.

Up Build Steps It collects status information from each oneSome of these controlOthers are usedThe remaining steps will still be executed.The remaining steps will still bePrevious Common Parameters. Up Build Steps There are several classes toBuildbot knows about. For a description of how Buildbot treats sourceThe remainingThis minimizes disk space, bandwidth,Builds ought to be correctThis doubles theThis insures a cleanThis command removes all CVSThis is provided to make life easierA quick Builder which emulatesThis frequently resultsPrevious Source Checkout. Up Source Checkout It takes the following argumentsFor example, the cvsrootThe cvsmodule for the Buildbot sourceThis is mostDefaults to HEAD.Defaults toPrevious CVS. Up Source Checkout There are two basic ways of setting up the checkout step, dependingIt dictates both where theFor example, if you are using a remote. Subversion repository which is accessible through HTTP at a URL ofIt should probably end in a slash.This will be appended to baseURL toSuch a repository might be organized as followsWe do not want the Buildbot to automaticallyThis depends upon a usersuppliedFor example, a change to a file with the SVN url ofIt will not pay attention to thePrevious SVN. Up Source Checkout Also like SVN, theThe only difference inIn other words, doing an SVNDoing a Darcs checkout of baseURL is just plain wrong, sinceDarcs source repository is available.It should probably end in aPrevious Darcs. Up Source Checkout Mercurial source repository is available.It should probably end in aPrevious Mercurial. Up Source Checkout It takes theThe parameter is accepted for compatibility with the Bazaar Previous Arch. Up Source Checkout The checkout semantics are justUp Source Checkout Both will have. The client name and source directoryPrevious Source Checkout.

Up Build Steps The step finishes with a status of FAILUREA list of strings is preferredUsing a singleFor example, to run tests with a different i18nThe exception is PYTHONPATH, which is mergedFor example, to prepend bothNote that commands run throughFor example, TwistedsIt should be a singleThe preferredThis may be a bit too wide to fit comfortably on the WaterfallPrevious ShellCommand. Up Build Steps Previous Simple ShellCommand Subclasses. Up Simple ShellCommand Subclasses Previous Configure. Up Simple ShellCommand Subclasses When the compile is finished, thePrevious Compile. Up Simple ShellCommand Subclasses The default command is makeUp Simple ShellCommand Subclasses BuildStep to modify their actions. For example, the SVN revisionSourceStamp information. Other properties can be set by BuildSteps asEach takes a stringShellCommand. This interpolates the named build properties into theNote that for every %s orIn this form, the property name goesThis comes from the builds SourceStamp, and describes which branch isOtherwise it will be aThis also comes from the SourceStamp, and is the revision of theWhen a buildThis is a “trunk build”. This will be interpolated as an emptyThis is set when a Source step checks out the source tree, andIn general this should be the same as revision, except forThis can be used to rebuildThis is a string that indicates which Builder the build was a part of. The combination of buildername and buildnumber uniquely identify aEach build gets a number, scoped to the Builder so the first buildThis is a string which identifies which buildslave the build isUp Build Steps One was to do this isOnce written, this Step can be used inFor example, a BuildStep that knowsPrevious Writing New BuildSteps. Up Writing New BuildSteps Each one has a shortEach LogFile contains anFor example, when a.

ShellCommand runs, it writes a few lines to the “headers” channel toStatus plugins canIf you were doing this from a shell, you would use something likeTo do this, you would add code to yourThis LogFile will appear inLogFile that contains HTML instead of plain text. The normal LogFileLogFile will not. At the moment this is only used to present a pretty. HTML representation of an otherwise ugly exception traceback whenYou can createYou then add text to this LogFile byThese additions will be added to the LogFile byPrevious BuildStep LogFiles. Up Writing New BuildSteps BuildStep can watch this output as it arrives, to keep track of howYou can get a better measure ofThis observer is givenOnce the observer has decided thatAs Trial executes, it emits lines like the followingIt has a mode flag named finished toThe Progresstracking code uses eachThe observer isUp Writing New BuildSteps Like its collection of. LogFiles, each link has a name and a target URL. The web status pageThe external link can provide an easy wayNote that the step itself isMultiple URLs canPrevious Build Steps. Up Build Process Limited CPU speed orThere are two kinds ofEach Lock is created with a uniqueThis argument accepts a list of Lock objects the Step willThis also meansBuilders each running tests against a different version of Python. The machine which hosts this buildslave is not particularly fast, soSVN checkouts would be taxing.In this case,In addition, two of the Builds run on a fast machine which does notMasterLock s can beBut they cant prevent other users fromUp Build Process Previous Build Factories. Up Build Factories The standard ones provided with Buildbot are documented later. See Build Steps. You can also write your own subclasses to use inPrevious BuildStep Objects. Up Build Factories When the Build is actually started, these stepFor example, a build which consistsUsing addStep isTo make this approach easier,FAILED. However, the remaining steps will still be executed.

This isFor example, a failure experienced while building documentation filesFor example, withoutThis is specified as aPrevious BuildFactory. Up BuildFactory Up BuildFactory That simply means that theFalse. Incremental builds will or at least the ought to compile asUp Build Factories Previous ProcessSpecific build factories. Up ProcessSpecific build factories UNIXlike systems. Most GNU software is built using autoconf. It isThese tools bothBuildStep to generate the source tree. Defaults toThis acceptsDefaults to an empty dictionary.Defaults to an empty list.It defaults to make all. If set to. None, the compile step is skipped.It defaults to make check. If set to. None, the test step is skipped.Previous GNUAutoconf. Up ProcessSpecific build factories The standard build routine for these modulesUp ProcessSpecific build factories The standard build process looksThis accepts either aUp ProcessSpecific build factories These modules areThis value cannot beIf the test module name isThe library path used for testingTrial can then run just the appropriate tests. This is useful forDefaults to justThis list is. ShellCommand.Defaults to. to include theThe generated build library is frequentlyDefaults to an emptyIt is occasionallyDefaults toDefaults to False.Defaults to False.It isnt clearMost of these examples assume that thePrevious Build Process. Up Top Most statusThey should useThey may callSee the docstrings inPrevious Status Delivery. Up Status Delivery HTML “waterfall display”, which shows a timebased chart of events. This display provides detailed information about all steps of allWhen the webBuild” button that allows visitors to manually trigger builds. ThisYou may not wishFalse to remove these buttons.This is returned to browsers that request the favicon.ico file,You can set this to None to avoid using aSetting it to a file whichPrevious HTML Waterfall. Up Status Delivery The password argument, if provided,The buildbot will respond in kind.

Use help commands to get a list of knownREASON will be addedYou might use thisPrevious IRC Bot. Up Status Delivery Up Status Delivery The status plugins are all children of an object which implementsPlugins which need toPrevious Status Delivery. Up Top Some of its subcommands are intended for buildmaster admins, whilePrevious Commandline tool. Up Commandline tool You must provide severalThe daemon is launched in the background,Previous Administrator Tools. Up Commandline tool Previous Developer Tools. Up Developer Tools The option is always in thePrevious statuslog. Up Developer Tools Up Developer Tools This revision, patch pair isSourceStamp. If you want, the tool will emit status messages as theThis lets theAny source code being built can be used to compromise the buildslaveThe usual forcebuild control channels canIdeally, onlyThis approach creates a command queue directory, called theThe buildmasterThe buildbot try command createsWhen the buildmaster noticesIf they are on different machines, this will beIt may also involve granting developer accountsThe disadvantages areIn addition, theAlso rememberIt takes the sameSee twisted.application.strports forYou specifyIt also takes aIt must also be givenThese arguments can be provided inThis requires a master The set you choose will depend uponYou might use just one builder if that platformIt can also beTo accomplish this, theThe default name for this marker file isIt converts theThis works, more or less,It then performs an svn diffIf your tree is notIt then does a baz diff to obtain theTherefore the contentsDarcscontrolled source tree.SHA1 hash of the current revisions contents, which is used as thePrevious Developer Tools. Up Commandline tool Previous Other Tools. Up Other Tools VC server.If omitted, it defaultsAll files included in this. Change must be on the same branch.

This is specifically for Darcs, which uses theThis context file can be a couple of kilobytes long, spanning a coupleYou may wantUp Other Tools This debug port shares the same portThis establishes the connection to theNote that it is a good idea to beThe idea here is to use Twisteds “rebuild”You can set the name ofOptionally, you can also set a revision for the change. If theThis was used to manually set the status of the given. Builder, but the statusassignment code was changed in an incompatibleUp Commandline tool This specification can beThe buildbot Usually shares the slaveport, but a future version may make itPrevious Commandline tool. Up Top The subscription instructions andPrevious Resources. Up Top Buildbot, and is likely to only be of use to people intending toPrevious Developers Appendix. Up Top There are the ones thatClasses that are not listed here are generally internal things thatPrevious Index of Useful Classes. Up Top The keys of this dictionary are listed here. The beginning of theUp Top For this reason, theThey should not containMeanwhile Build B obtains Lock 2, and has a Step B.two which wants toDont Do That. The guilty developer can be identified and harassed without human intervention. By running the builds on a variety of platforms, developers who do not have the facilities to test their changes everywhere before checkin will at least know shortly afterwards whether they have broken the build or not. Warning counts, lint checks, image size, compile time, and other build parameters can be tracked over time, are more visible, and are therefore easier to improve. Developers get immediate and potentially public feedback about their changes, encouraging them to be more careful about testing before checkin. The various components of the project were supposed to compile and run on several flavors of unix linux, solaris, BSD, but individual developers had their own preferences and tended to stick to a single platform.

From time to time, incompatibilities would sneak in some unix platforms want to use string.h, some prefer strings.h , and then the project would compile for some developers but not others. The Buildbot was written to automate the human process of walking into the office, updating a project, compiling and discovering the breakage, finding the developer at fault, and complaining to them about the problem they had introduced. With multiple platforms it was difficult for developers to do the right thing compile their potential change on all platforms; the Buildbot offered a way to help. Adding unit tests to the codebase helps here if an application’s unit tests pass despite changes in the libraries it uses, you can have more confidence that the library changes haven’t broken anything. Many developers complained that the unit tests were inconvenient or took too long to run having the Buildbot run them reduces the developer’s workload to a minimum. When everyone can see the status of the project, developers are encouraged to keep the project in good working order. Unit tests that aren’t run on a regular basis tend to suffer from bitrot just like code does exercising them on a regular basis helps to keep them functioning and useful. The workers are designed to require an absolute minimum of configuration, reducing the effort a potential volunteer needs to expend to be able to contribute a new test environment to the project. The goal is for anyone who wishes that a given project would run on their favorite platform should be able to offer that project a worker, running on that platform, where they can verify that their portability code works, and keeps working. The buildmaster makes all decisions about what, when, and how to build. It sends commands to be run on the workers, which simply execute the commands and return the results.As the builds are performed, various status messages are produced, which are then sent to any registered Reporters. Each worker is maintained by a worker admin, who do not need to be quite as involved. Generally workers are run by anyone who has an interest in seeing the project work well on their favorite platform. These machines connect to the buildmaster over a TCP connection to a publiclyvisible port. As a result, the workers can live behind a NAT box or similar firewalls, as long as they can get to buildmaster. The TCP connections are initiated by the worker and accepted by the buildmaster, but commands and results travel both ways within this connection. The buildmaster is always in charge, so all commands travel exclusively from the buildmaster to the worker. Therefore they must also be able to reach the repository. The buildmaster provides instructions for performing builds, but does not provide the source code itself. Most ChangeSource s listen for messages from a hook script of some sort. Some sources actively poll the repository on a regular basis. All Change s are fed to the schedulers. They collect Change s into BuildRequest s, which are then queued for delivery to Builders until a worker is available. Each Build is run on a single worker. These workers are expected to behave identically the only reason to use multiple Worker s for a single Builder is to provide a measure of loadbalancing. These WorkerForBuilder s operate independently from each other. Each gets its own base directory to work in. It is quite common to have many Builder s sharing the same worker. For example, there might be two workers one for i386, and a second for PowerPC. The full builders would each run on a single worker, whereas the tarball creation step might run on either worker since the platform doesn’t matter when creating source tarballs. In this case, the mapping would look like These requests are merged into a single Build instance, which includes the SourceStamp that describes what exact version of the source code should be used for the build.