Function print_activity_chain

atomic-cli/src/commands/provenance/command.rs:293–376

Print one activity and walk its `turnParent` chain via `previous`.

(repo: &Repository, input: &ProvActivityInput, graph: &ProvenanceGraph)

/// Print one activity and walk its `turnParent` chain via `previous`.
fn print_activity_chain(repo: &Repository, input: &ProvActivityInput, graph: &ProvenanceGraph) {
    // The projected (unsigned) value is the source of truth for the shape.
    let value = project(input);
    let activity = value
        .get("@graph")
        .and_then(|g| g.as_array())
        .and_then(|nodes| {
            nodes
                .iter()
                .find(|n| n.get("@type").and_then(|t| t.as_str()) == Some("prov:Activity"))
        });

    let indent = "  ";
    if let Some(act) = activity {
        println!(
            "{indent}{} {}",
            emphasis("activity"),
            info(act.get("@id").and_then(|v| v.as_str()).unwrap_or("?"))
        );
        if let Some(gen) = act.get("generated").and_then(|v| v.as_array()) {
            for g in gen {
                println!(
                    "{indent}  {} {}",
                    hint("generated"),
                    info(g.as_str().unwrap_or("?"))
                );
            }
        }
        println!(
            "{indent}  {} {}",
            hint("agent"),
            info(
                act.get("associatedWith")
                    .and_then(|v| v.as_str())
                    .unwrap_or("?")
            )
        );
        println!(
            "{indent}  {} {} ({})",
            hint("agent label"),
            info(&input.agent_display_name),
            input.agent_vendor.as_deref().unwrap_or("no vendor")
        );
        println!(
            "{indent}  {} {}",
            hint("person"),
            info(
                act.get("actedOnBehalfOf")
                    .and_then(|v| v.as_str())
                    .unwrap_or("?")
            )
        );
        if let Some(parent) = act.get("turnParent").and_then(|v| v.as_str()) {
            println!("{indent}  {} {}", hint("turnParent"), info(parent));
        } else {
            println!("{indent}  {}", hint("turnParent: (root turn)"));
        }
    }