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|~-[[FrontPage|Launchpad Help]] > [[Packaging]] > [[Packaging/SourceBuilds|Daily builds]] > bzr-build -~||~-[[FrontPage|Launchpad Help]] > [[Packaging]] > [[Packaging/SourceBuilds|Daily builds]] > bzr-builder -~|
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|The easiest way to install bzr-builder, and keep it updated, is using the PPA at:||The easiest way to install bzr-builder is to simply `apt-get install bzr-builder`.|
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Alternatively, you can pull down the branch from Launchpad and install it in your Bazaar plugins directory:
|Alternatively, if you find you need a newer version than is packaged in Ubuntu, you can pull down the branch from Launchpad and install it in your Bazaar plugins directory:|
bzr-builder is the Bazaar plugin that helps you set up daily builds in Launchpad. You need to install it locally to test your recipes and builds before you send them to Launchpad.
The easiest way to install bzr-builder is to simply apt-get install bzr-builder.
Alternatively, if you find you need a newer version than is packaged in Ubuntu, you can pull down the branch from Launchpad and install it in your Bazaar plugins directory:
$ mkdir -p ~/.bazaar/plugins/ $ bzr branch lp:bzr-builder ~/.bazaar/plugins/builder
To check if it is install and running, enter:
$ bzr plugins -v
Looking for "builder" in the listed plugins.
Help for the plugin is available by running:
$ bzr help builder
Help for the individual commands is available as:
$ bzr help build $ bzr help dailydeb
bzr-builder works with "recipes" that are descriptions of the steps needed to construct a package from the various Bazaar branches.
Running commands in recipes
Sometimes you may need run a partircular command in order to prepare a branch for packaging.
bzr-builder supports this through the run command.
Note: Launchpad does not support the run command.
Let's say you need to run autoreconf -i at some point during the build process. You'd add the following line to your recipe:
run autoreconf -i
When bzr-builder reaches that point in the recipe it will run that command.
If you place a run command in a nest section of a recipe — i.e. indented by two spaces below a nest command — the command will be run in the nested location.
nest packaging lp:~team/project/ubuntu debian run cat control
The command is passed through the shell, so you can use shell constructs, such as:
run touch a && touch b
If the command exits with a non-zero error code then it will stop the building of the package.
Building the recipe
In order to build the recipe you need to use the bzr dailydeb command.
$ bzr dailydeb package.recipe working-dir
This will perform the steps specified in package.recipe. It will create working-dir and put the resulting source tree and the source package there.
You can examine the unpacked source tree and then build the source package and install the results.
There's more in the daily builds knowledge base.