Struct BuildahInstaller 

pub struct BuildahInstaller { /* private fields */ }

Buildah installation manager

Handles finding existing buildah installations and providing installation guidance when buildah is not found.

Implementations

impl BuildahInstaller

pub fn new() -> Self

Create installer with default paths

User install directory: ~/.zlayer/bin/ System install directory: /usr/local/lib/zlayer/

pub fn with_install_dir(dir: PathBuf) -> Self

Create with custom install directory

pub fn install_dir(&self) -> &Path

Get the install directory

pub fn min_version(&self) -> &str

Get the minimum required version

pub async fn find_existing(&self) -> Option<BuildahInstallation>

Find existing buildah installation

Searches for buildah in the following locations (in order):

1. PATH environment variable
2. ~/.zlayer/bin/buildah
3. /usr/local/lib/zlayer/buildah
4. /usr/bin/buildah
5. /usr/local/bin/buildah

pub async fn check(&self) -> Result<BuildahInstallation, InstallError>

Check if buildah is installed and meets version requirements

Returns the installation if found and valid, otherwise returns an error.

Errors

Returns an error if buildah is not found or if the version is below the minimum.

pub async fn get_version(path: &Path) -> Result<String, InstallError>

Get buildah version from a binary

Runs buildah --version and parses the output. Expected format: “buildah version 1.33.0 (image-spec 1.0.2-dev, runtime-spec 1.0.2-dev)”

Errors

Returns an error if the binary cannot be executed or the version output cannot be parsed.

pub async fn ensure(&self) -> Result<BuildahInstallation, InstallError>

Ensure buildah is available (find existing or return helpful error)

This is the primary entry point for ensuring buildah is available. If buildah is not found, it returns an error with installation instructions.

Errors

Returns an error if buildah is not found or the version is insufficient.

pub async fn download(&self) -> Result<BuildahInstallation, InstallError>

Download buildah binary for current platform

Currently returns an error with installation instructions. Future versions may download static binaries from GitHub releases.

Errors

Returns an error if the platform is unsupported or automatic download is unavailable.

Trait Implementations

impl Clone for BuildahInstaller

fn clone(&self) -> BuildahInstaller

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BuildahInstaller

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BuildahInstaller

fn default() -> Self

Returns the “default value” for a type.