containerization-framework 0.10.1

Rust bindings for Apple's Containerization framework: Linux containers in lightweight VMs, in-process and without a daemon.
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use super::Descriptor;
use super::MediaTypes;
use super::Platform;
use crate::error::Error;
use crate::platform;
use crate::platform::ffi;
use std::collections::BTreeMap;

/// `Index`.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Index {
  pub schema_version: isize,
  pub media_type: String,
  pub manifests: Vec<Descriptor>,
  pub annotations: Option<BTreeMap<String, String>>,
  pub subject: Option<Descriptor>,
  pub artifact_type: Option<String>,
}

impl Index {
  /// `Index(manifests:)`, its other arguments at their defaults: schema
  /// version 2, `MediaTypes.index`, and nothing else.
  pub fn new(manifests: Vec<Descriptor>) -> Self {
    Self {
      schema_version: 2,
      media_type: MediaTypes::INDEX.to_string(),
      manifests,
      annotations: None,
      subject: None,
      artifact_type: None,
    }
  }

  /// `Index.runnablePlatforms`: the platforms of the image manifests, leaving
  /// out attestations and `unknown/unknown` entries.
  pub fn runnable_platforms(&self) -> Result<Vec<Platform>, Error> {
    platform::outcome(
      ffi::cz_index_runnable_platforms(self.clone()),
      "read an index's runnable platforms",
    )
    .map(|outcome| outcome.platforms())
  }
}