Command Line Usage

kas - setup tool for bitbake based project

usage: kas [-h] [--version] [-d] [-l {debug,info,warning,error,critical}]
           {build,checkout,dump,for-all-repos,shell,menu} ...

Positional Arguments

cmd

Possible choices: build, checkout, dump, for-all-repos, shell, menu

sub command help

Named Arguments

--version

show program’s version number and exit

-d, --debug

Enable debug logging (deprecated, use –log-level debug).

-l, --log-level

Possible choices: debug, info, warning, error, critical

Set log level (default: info)

Default: “info”

Environment Variables

kas uses a number of environment variables to configure its behavior. The Variables Glossary provides an overview, wherein the tuple (C,K,E) denotes the scope of the variable.

Variable Scope

kas-container (C)

The variable is processed or forwarded by the kas-container script. For some variables, the variable is re-written to the container’s directory layout.

Note

The env section of the project configuration can be used to make arbitrary environment variables available to the build environment. When invoking the build via kas-container, make sure to also forward the corresponding environment variables into the container.

kas (K)

The variable is processed by kas itself. Some variables (e.g. the credentials for the awscli) are re-written to configuration files to also support older versions of the tooling.

build environment (E)

The variable is exported into the build environment. In this environment, the bitbake command is executed.

Variables Glossary

Environment variables	Description
`KAS_WORK_DIR` (C, K)	The path of the kas work directory, current work directory is the default.
`KAS_BUILD_DIR` (C, K)	The path build directory, `${KAS_WORK_DIR}/build` is the default.
`KAS_REPO_REF_DIR` (C, K)	The path to the repository reference directory. Repositories in this directory are used as references when cloning. In order for kas to find those repositories, they have to be named in a specific way. The repo URLs are translated like this: “https://github.com/siemens/meta-iot2000.git” resolves to the name “github.com.siemens.meta-iot2000.git”. Repositories that are not found will be cloned below this directory. Multiple instances of kas can simultaneously work on the same directory, as long as the underlying filesystem is POSIX compatible.
`KAS_DISTRO` `KAS_MACHINE` `KAS_TARGET` `KAS_TASK` (C, K)	This overwrites the respective setting in the configuration file.
`KAS_PREMIRRORS` (C, K)	Specifies alternatives for repo URLs. Just like bitbake `PREMIRRORS`, this variable consists of new-line separated entries. Each entry defines a regular expression to match a URL and, space-separated, its replacement. E.g.: “http://.*.someurl.io/ http://localmirror.net/”
`DISTRO_APT_PREMIRRORS` (C)	Specifies alternatives for apt URLs. Just like `KAS_PREMIRRORS`.
`SSH_PRIVATE_KEY` (K)	Variable containing the private key that should be added to an internal ssh-agent. This key cannot be password protected. This setting is useful for CI build servers. On desktop machines, an ssh-agent running outside the kas environment is more useful.
`SSH_PRIVATE_KEY_FILE` (K)	Path to the private key file that should be added to an internal ssh-agent. This key cannot be password protected. This setting is useful for CI build servers. On desktop machines, an ssh-agent running outside the kas environment is more useful.
`SSH_AUTH_SOCK` (C,K,E)	SSH authentication socket. Used for cloning over SSH (alternative to `SSH_PRIVATE_KEY` or `SSH_PRIVATE_KEY_FILE`).
`DL_DIR` `SSTATE_DIR` `SSTATE_MIRRORS` (C,K,E)	Environment variables that are transferred to the bitbake environment.
`TMPDIR` (K,E)	Directory for temporary files.
`http_proxy` `https_proxy` `ftp_proxy` `no_proxy` (C,K,E)	These variables define the proxy configuration bitbake should use.
`GIT_PROXY_COMMAND` (E) `NO_PROXY` (C,K,E)	Set proxy for native git fetches. `NO_PROXY` is evaluated by OpenEmbedded’s oe-git-proxy script.
`SHELL` (C,K,E)	The shell to start when using the shell plugin.
`TERM` (C,K,E)	The terminal options used in the shell plugin.
`AWS_CONFIG_FILE` `AWS_ROLE_ARN` `AWS_SHARED_CREDENTIALS_FILE` `AWS_WEB_IDENTITY_TOKEN_FILE` (K,C)	Path to the awscli configuration and credentials files that are copied to the kas home dir.
`GIT_CREDENTIAL_HELPER` `GIT_CREDENTIAL_USEHTTPPATH` (K,C)	Allows to set and configure the git credential helper in the .gitconfig of the kas user.
`GITCONFIG_FILE` (K,C)	Path to a .gitconfig file which will be copied to the kas home dir as .gitconfig.
`NETRC_FILE` (K,C)	Path to a .netrc file which will be copied to the kas home dir as .netrc.
`CI_SERVER_HOST` `CI_JOB_TOKEN` (K)	Environment variables from gitlab CI, if set .netrc is configured to allow fetching from the gitlab instance. An entry will be appended in case `NETRC_FILE` was given as well. Note that if the file already contains an entry for that host most tools would probably take that first one.
`GITHUB_ACTIONS` (K)	Environment variables from github actions. If set to true, .gitconfig is automatically imported. For details, see `GITCONFIG_FILE`.
`BB_NUMBER_THREADS` `PARALLEL_MAKE` (C,K,E)	Environment variables to control the concurrency.

For details about the access of remote resources, see Credential Handling.