#[cfg(unix)]use std::fs::Permissions;use std::io::Write;#[cfg(unix)]use std::os::unix::prelude::PermissionsExt;use std::process::{Command, Stdio}; use assert_matches::assert_matches;use insta::assert_debug_snapshot;use jj_lib::gpg_signing::GpgBackend;use jj_lib::signing::{SigStatus, SignError, SigningBackend}; static PRIVATE_KEY: &str = r#"-----BEGIN PGP PRIVATE KEY BLOCK----- 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6JC8-----END PGP PRIVATE KEY BLOCK-----"#; struct GpgEnvironment {    homedir: tempfile::TempDir,} impl GpgEnvironment {    fn new() -> Result<Self, std::process::Output> {        let dir = tempfile::Builder::new()            .prefix("jj-gpg-signing-test-")            .tempdir()            .unwrap();         let path = dir.path();         #[cfg(unix)]        std::fs::set_permissions(path, Permissions::from_mode(0o700)).unwrap();         let mut gpg = std::process::Command::new("gpg")            .arg("--homedir")            .arg(path)            .arg("--import")            .stdin(Stdio::piped())            .stdout(Stdio::piped())            .stderr(Stdio::piped())            .spawn()            .unwrap();         gpg.stdin            .as_mut()            .unwrap()            .write_all(PRIVATE_KEY.as_bytes())            .unwrap();         gpg.stdin.as_mut().unwrap().flush().unwrap();         let res = gpg.wait_with_output().unwrap();         if !res.status.success() {            println!("Failed to add private key to gpg-agent. Make sure it is running!");            println!("{}", String::from_utf8_lossy(&res.stderr));            return Err(res);        }         Ok(GpgEnvironment { homedir: dir })    }} macro_rules! gpg_guard {    () => {        if Command::new("gpg").arg("--version").status().is_err() {            eprintln!("Skipping test because gpg is not installed on the system");            return;        }    };} fn backend(env: &GpgEnvironment) -> GpgBackend {    // don't really need faked time for current tests,    // but probably will need it for end-to-end cli tests    GpgBackend::new("gpg".into(), false).with_extra_args(&[        "--homedir".into(),        env.homedir.path().as_os_str().into(),        "--faked-system-time=1701042000!".into(),    ])} #[test]#[cfg_attr(windows, ignore = "stuck randomly on Windows CI #3140")] // FIXMEfn gpg_signing_roundtrip() {    gpg_guard!();     let env = GpgEnvironment::new().unwrap();    let backend = backend(&env);    let data = b"hello world";    let signature = backend.sign(data, None).unwrap();     let check = backend.verify(data, &signature).unwrap();    assert_eq!(check.status, SigStatus::Good);    assert_eq!(check.key.unwrap(), "638785CB16FEA061");    assert_eq!(        check.display.unwrap(),        "Someone (jj test signing key) <someone@example.com>"    );     let check = backend.verify(b"so so bad", &signature).unwrap();    assert_eq!(check.status, SigStatus::Bad);    assert_eq!(check.key.unwrap(), "638785CB16FEA061");    assert_eq!(        check.display.unwrap(),        "Someone (jj test signing key) <someone@example.com>"    );} #[test]#[cfg_attr(windows, ignore = "stuck randomly on Windows CI #3140")] // FIXMEfn gpg_signing_roundtrip_explicit_key() {    gpg_guard!();     let env = GpgEnvironment::new().unwrap();    let backend = backend(&env);    let data = b"hello world";    let signature = backend.sign(data, Some("Someone Else")).unwrap();     assert_debug_snapshot!(backend.verify(data, &signature).unwrap(), @r###"    Verification {        status: Good,        key: Some(            "4ED556E9729E000F",        ),        display: Some(            "Someone Else (jj test signing key) <someone-else@example.com>",        ),    }    "###);    assert_debug_snapshot!(backend.verify(b"so so bad", &signature).unwrap(), @r###"    Verification {        status: Bad,        key: Some(            "4ED556E9729E000F",        ),        display: Some(            "Someone Else (jj test signing key) <someone-else@example.com>",        ),    }    "###);} #[test]#[cfg_attr(windows, ignore = "stuck randomly on Windows CI #3140")] // FIXMEfn unknown_key() {    gpg_guard!();     let env = GpgEnvironment::new().unwrap();    let backend = backend(&env);    let signature = br"-----BEGIN PGP SIGNATURE-----     iHUEABYKAB0WIQQs238pU7eC/ROoPJ0HH+PjJN1zMwUCZWPa5AAKCRAHH+PjJN1z    MyylAP9WQ3sZdbC4b1C+/nxs+Wl+rfwzeQWGbdcsBMyDABcpmgD/U+4KdO7eZj/I    e+U6bvqw3pOBoI53Th35drQ0qPI+jAE=    =kwsk    -----END PGP SIGNATURE-----";    assert_debug_snapshot!(backend.verify(b"hello world", signature).unwrap(), @r###"    Verification {        status: Unknown,        key: Some(            "071FE3E324DD7333",        ),        display: None,    }    "###);    assert_debug_snapshot!(backend.verify(b"so bad", signature).unwrap(), @r###"    Verification {        status: Unknown,        key: Some(            "071FE3E324DD7333",        ),        display: None,    }    "###);} #[test]#[cfg_attr(windows, ignore = "stuck randomly on Windows CI #3140")] // FIXMEfn invalid_signature() {    gpg_guard!();     let env = GpgEnvironment::new().unwrap();    let backend = backend(&env);    let signature = br"-----BEGIN PGP SIGNATURE-----     super duper invalid    -----END PGP SIGNATURE-----";     // Small data: gpg command will exit late.    assert_matches!(        backend.verify(b"a", signature),        Err(SignError::InvalidSignatureFormat)    );     // Large data: gpg command will exit early because the signature is invalid.    assert_matches!(        backend.verify(&b"a".repeat(100 * 1024), signature),        Err(SignError::InvalidSignatureFormat)    );}