dcr 0.8.0

DCR is a utility for managing C/C++ projects in a Cargo-like style.
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mod common;
use common::*;

#[test]
fn init_and_clean_remove_target() {
    let dir = unique_sandbox_dir("init");
    let out = run_dcr(&["init"], &dir);
    assert!(out.status.success(), "dcr init should succeed");

    let target_debug = dir.join("target").join("debug");
    std::fs::create_dir_all(&target_debug).expect("failed to create target/debug");
    std::fs::write(target_debug.join("dummy.o"), "x").expect("failed to write dummy file");

    let out = run_dcr(&["clean"], &dir);
    assert!(out.status.success(), "dcr clean should succeed");
    assert!(!dir.join("target").exists(), "target should be removed");
}

#[test]
fn add_preserves_run_and_untyped_keys() {
    // Regression: `dcr add` used to drop the [run] section and non-whitelisted
    // [build] keys (filename/extension/include) when re-serializing dcr.toml.
    let dir = unique_sandbox_dir("preserve_add");
    let out = run_dcr(&["init"], &dir);
    assert!(out.status.success(), "dcr init should succeed");

    let toml_path = dir.join("dcr.toml");
    let toml = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
    let updated = toml.replace(
        "[build]",
        "[build]\nfilename = \"KERNEL\"\nextension = \"ELF\"\ninclude = [\"src/include\"]",
    ) + "\n[run]\ncmd = \"qemu-system-aarch64 -kernel KERNEL\"\n";
    std::fs::write(&toml_path, updated).expect("failed to write dcr.toml");

    let out = run_dcr(&["add", "zlib", "path:../zlib"], &dir);
    assert!(out.status.success(), "dcr add should succeed");

    let saved = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
    assert!(
        saved.contains("filename = \"KERNEL\""),
        "build.filename lost:\n{saved}"
    );
    assert!(
        saved.contains("extension = \"ELF\""),
        "build.extension lost:\n{saved}"
    );
    assert!(
        saved.contains("include = [\"src/include\"]"),
        "build.include lost:\n{saved}"
    );
    assert!(
        saved.contains("[run]") && saved.contains("qemu-system-aarch64"),
        "[run] section lost:\n{saved}"
    );
    assert!(
        saved.contains("zlib = { path = \"../zlib\" }"),
        "dependency not added as inline table:\n{saved}"
    );
}

#[test]
fn build_run_clean_flags_normal_project() {
    let Some(compiler) = available_compiler() else {
        eprintln!("no compiler found; skipping build/run test");
        return;
    };

    let dir = unique_sandbox_dir("normal");
    let out = run_dcr(&["init"], &dir);
    assert!(out.status.success(), "dcr init should succeed");

    let envs = [("DCR_COMPILER", compiler)];
    let out = run_dcr_env(&["build"], &dir, &envs);
    assert!(out.status.success(), "dcr build should succeed");

    let out = run_dcr_env(&["build", "--release"], &dir, &envs);
    assert!(out.status.success(), "dcr build --release should succeed");

    let out = run_dcr_env(&["run"], &dir, &envs);
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("Running"), "dcr run should start");

    let out = run_dcr_env(&["clean", "--release"], &dir, &envs);
    assert!(out.status.success(), "dcr clean --release should succeed");
    let target_dir = "target/x86_64-unknown-linux-gnu".to_string();
    assert!(
        !dir.join(&target_dir).join("release").exists(),
        "target/x86_64-unknown-linux-gnu/release should be removed"
    );
    assert!(
        dir.join(&target_dir).join("debug").is_dir(),
        "target/x86_64-unknown-linux-gnu/debug should remain"
    );

    let out = run_dcr_env(&["clean"], &dir, &envs);
    assert!(out.status.success(), "dcr clean should succeed");
    assert!(!dir.join("target").exists(), "target should be removed");
}

#[test]
fn build_with_target_config() {
    let Some(compiler) = available_compiler() else {
        eprintln!("no compiler found; skipping target config test");
        return;
    };

    let dir = unique_sandbox_dir("target_cfg");
    let out = run_dcr(&["init"], &dir);
    assert!(out.status.success(), "dcr init should succeed");

    let toml_path = dir.join("dcr.toml");
    let toml = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
    let project_name = parse_project_name(&toml);
    let updated = toml.replace("[build]", "[build]\ntarget = \"linux\"");
    std::fs::write(&toml_path, updated).expect("failed to write dcr.toml");

    let envs = [("DCR_COMPILER", compiler)];
    let out = run_dcr_env(&["build"], &dir, &envs);
    assert!(
        out.status.success(),
        "dcr build with target = \"linux\" should succeed"
    );

    let artifact = default_artifact_path(&dir, &project_name);
    assert!(
        artifact.is_file(),
        "artifact should be at default path target/x86_64-unknown-linux-gnu/debug/{}",
        project_name
    );
}

#[test]
fn build_with_out_dir() {
    let Some(compiler) = available_compiler() else {
        eprintln!("no compiler found; skipping out_dir test");
        return;
    };

    let dir = unique_sandbox_dir("out_dir");
    let out = run_dcr(&["init"], &dir);
    assert!(out.status.success(), "dcr init should succeed");

    let toml_path = dir.join("dcr.toml");
    let toml = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
    let project_name = parse_project_name(&toml);
    let updated = toml.replace("[build]", "[build]\nout_dir = \"./_BUILD\"");
    std::fs::write(&toml_path, updated).expect("failed to write dcr.toml");

    let envs = [("DCR_COMPILER", compiler)];
    let out = run_dcr_env(&["build"], &dir, &envs);
    if !out.status.success() {
        eprintln!("stdout: {}", String::from_utf8_lossy(&out.stdout));
        eprintln!("stderr: {}", String::from_utf8_lossy(&out.stderr));
    }
    assert!(
        out.status.success(),
        "dcr build with out_dir should succeed"
    );

    let artifact = dir.join("_BUILD").join(&project_name);
    assert!(
        artifact.is_file(),
        "artifact should be at _BUILD/{} (custom out_dir)",
        project_name
    );

    let default_path = default_artifact_path(&dir, &project_name);
    assert!(
        !default_path.exists(),
        "artifact should NOT be at default path when out_dir is set"
    );
}