verctl 0.0.1

Stack-agnostic version PRs from Changesets-format fragments
Documentation 
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use indoc::indoc;
use std::fs;
use tempfile::TempDir;
use verctl::fragment::{self, Bump, Fragment, PackageBump};
use verctl::prepare::PlanEntry;
use verctl::release;

#[test]
fn contributing_fragments_skip_unused() {
    let used = Fragment {
        path: std::path::PathBuf::from("used.md"),
        packages: vec![PackageBump {
            name: "demo".into(),
            bump: Bump::Patch,
        }],
        summary: "used".into(),
    };
    let unused = Fragment {
        path: std::path::PathBuf::from("skip.md"),
        packages: vec![PackageBump {
            name: "other".into(),
            bump: Bump::Patch,
        }],
        summary: "skip".into(),
    };
    let plan = [PlanEntry {
        name: "demo".into(),
        from: "1.0.0".into(),
        to: "1.0.1".into(),
        bump: Bump::Patch,
        path: std::path::PathBuf::from("Cargo.toml"),
        driver: verctl::driver::Driver::Path {
            format: verctl::driver::Format::Toml,
            keys: vec!["package.version".into()],
            after: None,
        },
    }];
    let fragments = [used, unused];
    let hits = release::contributing_fragments(&plan, &fragments);
    assert_eq!(hits.len(), 1);
    assert_eq!(hits[0].summary, "used");
}

#[test]
fn consume_fragments_deletes_the_files() {
    let root = TempDir::new().unwrap();
    let path = root.path().join("gone.md");
    fs::write(&path, "x").unwrap();
    let fragment = Fragment {
        path: path.clone(),
        packages: vec![PackageBump {
            name: "demo".into(),
            bump: Bump::Patch,
        }],
        summary: "gone".into(),
    };
    release::consume_fragments(&[fragment]).unwrap();
    assert!(!path.exists());
}

#[test]
fn prepend_changelog_creates_and_inserts() {
    let root = TempDir::new().unwrap();
    let path = root.path().join("CHANGELOG.md");
    release::prepend_changelog(&path, "## demo 1.0.1\n\n- first\n\n").unwrap();
    let first = fs::read_to_string(&path).unwrap();
    assert!(
        first.starts_with("# Changelog\n\n## demo 1.0.1\n"),
        "{first}"
    );
    release::prepend_changelog(&path, "## demo 1.0.2\n\n- second\n\n").unwrap();
    let next = fs::read_to_string(&path).unwrap();
    assert!(next.contains("## demo 1.0.2"), "{next}");
    assert!(
        next.find("1.0.2").unwrap() < next.find("1.0.1").unwrap(),
        "{next}"
    );
}

#[test]
fn write_changelogs_renders_fragment_summaries() {
    let root = TempDir::new().unwrap();
    let changelog = root.path().join("CHANGELOG.md");
    let frag_path = root.path().join("note.md");
    let fragment = fragment::parse_str(
        indoc! {"
            ---
            demo: patch
            ---

            Local prepare writes versions.
        "},
        &frag_path,
    )
    .unwrap();
    let plan = [PlanEntry {
        name: "demo".into(),
        from: "1.0.0".into(),
        to: "1.0.1".into(),
        bump: Bump::Patch,
        path: root.path().join("Cargo.toml"),
        driver: verctl::driver::Driver::Path {
            format: verctl::driver::Format::Toml,
            keys: vec!["package.version".into()],
            after: None,
        },
    }];
    release::write_changelogs(&changelog, &plan, &[fragment]).unwrap();
    let body = fs::read_to_string(&changelog).unwrap();
    assert!(body.contains("## demo 1.0.1"), "{body}");
    assert!(body.contains("Local prepare writes versions"), "{body}");
}

#[test]
fn local_prepare_does_not_delete_fragments() {
    let root = TempDir::new().unwrap();
    fs::write(
        root.path().join("verctl.toml"),
        indoc! {r#"
            [[packages]]
            name = "demo"
            path = "Cargo.toml"
        "#},
    )
    .unwrap();
    fs::write(
        root.path().join("Cargo.toml"),
        indoc! {r#"
            [package]
            name = "demo"
            version = "1.0.0"
        "#},
    )
    .unwrap();
    let changes = root.path().join(".changeset");
    fs::create_dir_all(&changes).unwrap();
    let frag = changes.join("bump.md");
    fs::write(
        &frag,
        indoc! {"
            ---
            demo: patch
            ---

            Patch.
        "},
    )
    .unwrap();
    let output = std::process::Command::new(env!("CARGO_BIN_EXE_verctl"))
        .current_dir(root.path())
        .args(["prepare", "--no-pr"])
        .output()
        .unwrap();
    assert!(
        output.status.success(),
        "{}",
        String::from_utf8_lossy(&output.stderr)
    );
    assert!(frag.exists());
    assert!(!root.path().join("CHANGELOG.md").exists());
}