Part properties¶

after¶

Type: array of unique strings with at least 1 item

Step: build

Specifies a list of parts that a given part will be built after.

build-attributes¶

Type: array of unique strings with at least 1 item from “core22-step-dependencies”, “enable-patchelf”, “no-patchelf”, “no-install”, “debug”, “keep-execstack”.

Step: build

The customisations to apply to the build.

build-environment¶

Type: build-environment-grammar

Step: build

The environment variables to be defined in the build environment specified as a list of key-value pairs.

Example:

build-environment:
  - MESSAGE: "Hello world"
  - NAME: "Craft Parts"

build-packages¶

Type: grammar-array

Step: build

The system packages to be installed in the build environment before the build is performed. These are installed using the host’s native package manager, such as apt or dnf, and they provide libraries and executables that the part needs during the build process.

build-snaps¶

Type: grammar-array

Step: build

The snaps to be installed in the build environment before the build is performed. These provide libraries and executables that the part needs during the build process. They take the form of <snap>/<version>/<channel>, <snap>/<channel> or just <snap>. For example, the node snap could be specified as node/18/stable, node/latest/stable or node/stable to select different versions.

organize¶

Type: ordered dictionary mapping strings to strings

Step: stage

Describes how files in the building area should be represented in the staging area.

In the following example, the hello.py file in the build area is copied to the bin directory in the staging area and renamed to hello:

organize:
  hello.py: bin/hello

If partitions are in use by the application, they may be referenced by prepending the partition name, surrounded by parentheses, to the destination path. Only the destination path may specify a partition; source paths always reference the default partition. Omitting the partition name in the destination path causes the file to be copied to the default partition.

The following example is exactly equivalent to the above example:

organize:
  hello.py: (default)/bin/hello

In this example, the file is instead copied to the application-defined boot partition:

organize:
  vmlinuz-6.2.0-39-generic: (boot)/vmlinuz

override-build¶

Type: string

Step: pull

A string containing commands to be run in a shell instead of performing those defined by the plugin for the build step.

override-prime¶

Type: string

Step: pull

A string containing commands to be run in a shell instead of performing the standard actions for the prime step.

override-pull¶

Type: string

Step: pull

A string containing commands to be run in a shell instead of performing the standard actions for the pull step.

override-stage¶

Type: string

Step: pull

A string containing commands to be run in a shell instead of performing the standard actions for the stage step.

parse-info¶

Type: string

Step: all

plugin¶

Type: string

Step: all steps

The plugin used to build the part. Available plugins include the following:

Name	Note
ant	Apache Ant
autotools	Autotools
cmake	CMake
dotnet	.Net
dump	Simple file unpacking
go	Go
make	Make
maven	Apache Maven
meson	Meson
nil	No default actions
npm	NPM
python	Python package
rust	Rust with Cargo
scons	SCons

prime¶

Type: array of unique strings with at least 1 item

Step: prime

The files to copy from the staging area to the priming area, see Specifying paths.

source¶

Type: grammar-string

Step: pull

The location of the source code and data.

source-branch¶

Type: string

Step: pull

The branch in the source repository to use when pulling the source code.

source-checksum¶

Type: string

Step: pull

For plugins that use files, this key contains a checksum value to be compared against the checksum of the downloaded file.

source-commit¶

Type: string

Step: pull

The commit to use to select a particular revision of the source code obtained from a repository.

source-depth¶

Type: integer

Step: pull

The number of commits in a repository’s history that should be fetched instead of the complete history.

source-subdir¶

Type: string

Step: pull

The subdirectory in the unpacked sources where builds will occur.

Note

This key restricts the build to the subdirectory specified, preventing access to files in the parent directory and elsewhere in the file system directory structure.

source-submodules¶

Type: array of unique strings with 0 or more items

Step: pull

The submodules to fetch in the source repository.

source-tag¶

Type: string

Step: pull

The tag to use to select a particular revision of the source code obtained from a repository.

source-type¶

Type: one of “deb”, “file”, “git”, “local”, “rpm”, “snap”, “tar”, “zip”

Step: pull

The type of container for the source code. If not specified, Craft Parts will attempt to auto-detect the source type. A list of supported formats can be found in the craft_parts.sources file.

stage¶

Type: array of unique strings with at least 1 item

Step: stage

The files to copy from the building area to the staging area, see Specifying paths.

stage-packages¶

Type: grammar-array

Step: stage

The packages to install in the staging area for deployment with the build products. These provide libraries and executables to support the deployed part.

This keyword also support supports Chisel slices.

To install a package slice instead of the whole package, simply follow the Chisel convention <packageName>_<sliceName>.

NOTE: at the moment, it is not possible to mix packages and slices in the same stage-packages field.

stage-snaps¶

Type: grammar-array

Step: stage

The snaps to install in the staging area for deployment with the build products. These provide libraries and executables to support the deployed part.

Summary of keys and steps¶

The following table shows the keys that are used in each build step. The plugin and parse-info keys apply to all steps.

Pull	Build	Stage	Prime
source	after	stage	prime
source-checksum	build-attributes	stage-snaps
source-branch	build-environment	stage-packages
source-commit	build-packages
source-depth	build-snaps
source-submodules	organize
source-subdir
source-tag
source-type
override-pull	override-build	override-stage	override-prime