vendor libsecret

The libsecret-rs crate is unmaintained, so I'm vendoring it for
now. Bumping the glib version turned out to be enough.

The exact process I used was:
1. Cloning the repository
2. Making changes
3. `cargo build` to ensure it works
4. `cargo package --no-verify` (b/c it tries to build all crates
separately instead of the entire workspace as a whole)
5. `mkdir libsecret/sys -p`
6. `tar --strip-components 1 -C libsecret -xvf ../libsecret-rs/target/package/libsecret-0.6.0.crate`
7. `tar --strip-components 1 -C libsecret/sys -xvf ../libsecret-rs/target/package/libsecret-sys-0.6.0.crate`

Then `Cargo.toml` is modified to ensure the libsecret and its `-sys`
crate build out of my vendored sources.

In the future, if I gain maintainership of the `libsecret` crate, I
could just revert this commit to make it point back to the upstream.

1 files changed, 405 insertions, 0 deletions

diff --git a/libsecret/sys/tests/abi.rs b/libsecret/sys/tests/abi.rs
new file mode 100644
index 0000000..591466e
--- /dev/null
+++ b/libsecret/sys/tests/abi.rs
@@ -0,0 +1,405 @@
+// Generated by gir (https://github.com/gtk-rs/gir @ 4dd714f7f3b1)
+// from
+// from gir-files (https://github.com/gtk-rs/gir-files.git @ b9db716f1bb7)
+// DO NOT EDIT
+
+#![cfg(unix)]
+
+use libsecret_sys::*;
+use std::env;
+use std::error::Error;
+use std::ffi::OsString;
+use std::mem::{align_of, size_of};
+use std::path::Path;
+use std::process::{Command, Stdio};
+use std::str;
+use tempfile::Builder;
+
+static PACKAGES: &[&str] = &["libsecret-1"];
+
+#[derive(Clone, Debug)]
+struct Compiler {
+    pub args: Vec<String>,
+}
+
+impl Compiler {
+    pub fn new() -> Result<Self, Box<dyn Error>> {
+        let mut args = get_var("CC", "cc")?;
+        args.push("-Wno-deprecated-declarations".to_owned());
+        // For _Generic
+        args.push("-std=c11".to_owned());
+        // For %z support in printf when using MinGW.
+        args.push("-D__USE_MINGW_ANSI_STDIO".to_owned());
+        args.extend(get_var("CFLAGS", "")?);
+        args.extend(get_var("CPPFLAGS", "")?);
+        args.extend(pkg_config_cflags(PACKAGES)?);
+        Ok(Self { args })
+    }
+
+    pub fn compile(&self, src: &Path, out: &Path) -> Result<(), Box<dyn Error>> {
+        let mut cmd = self.to_command();
+        cmd.arg(src);
+        cmd.arg("-o");
+        cmd.arg(out);
+        let status = cmd.spawn()?.wait()?;
+        if !status.success() {
+            return Err(format!("compilation command {cmd:?} failed, {status}").into());
+        }
+        Ok(())
+    }
+
+    fn to_command(&self) -> Command {
+        let mut cmd = Command::new(&self.args[0]);
+        cmd.args(&self.args[1..]);
+        cmd
+    }
+}
+
+fn get_var(name: &str, default: &str) -> Result<Vec<String>, Box<dyn Error>> {
+    match env::var(name) {
+        Ok(value) => Ok(shell_words::split(&value)?),
+        Err(env::VarError::NotPresent) => Ok(shell_words::split(default)?),
+        Err(err) => Err(format!("{name} {err}").into()),
+    }
+}
+
+fn pkg_config_cflags(packages: &[&str]) -> Result<Vec<String>, Box<dyn Error>> {
+    if packages.is_empty() {
+        return Ok(Vec::new());
+    }
+    let pkg_config = env::var_os("PKG_CONFIG").unwrap_or_else(|| OsString::from("pkg-config"));
+    let mut cmd = Command::new(pkg_config);
+    cmd.arg("--cflags");
+    cmd.args(packages);
+    cmd.stderr(Stdio::inherit());
+    let out = cmd.output()?;
+    if !out.status.success() {
+        let (status, stdout) = (out.status, String::from_utf8_lossy(&out.stdout));
+        return Err(format!("command {cmd:?} failed, {status:?}\nstdout: {stdout}").into());
+    }
+    let stdout = str::from_utf8(&out.stdout)?;
+    Ok(shell_words::split(stdout.trim())?)
+}
+
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+struct Layout {
+    size: usize,
+    alignment: usize,
+}
+
+#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
+struct Results {
+    /// Number of successfully completed tests.
+    passed: usize,
+    /// Total number of failed tests (including those that failed to compile).
+    failed: usize,
+}
+
+impl Results {
+    fn record_passed(&mut self) {
+        self.passed += 1;
+    }
+    fn record_failed(&mut self) {
+        self.failed += 1;
+    }
+    fn summary(&self) -> String {
+        format!("{} passed; {} failed", self.passed, self.failed)
+    }
+    fn expect_total_success(&self) {
+        if self.failed == 0 {
+            println!("OK: {}", self.summary());
+        } else {
+            panic!("FAILED: {}", self.summary());
+        };
+    }
+}
+
+#[test]
+fn cross_validate_constants_with_c() {
+    let mut c_constants: Vec<(String, String)> = Vec::new();
+
+    for l in get_c_output("constant").unwrap().lines() {
+        let (name, value) = l.split_once(';').expect("Missing ';' separator");
+        c_constants.push((name.to_owned(), value.to_owned()));
+    }
+
+    let mut results = Results::default();
+
+    for ((rust_name, rust_value), (c_name, c_value)) in
+        RUST_CONSTANTS.iter().zip(c_constants.iter())
+    {
+        if rust_name != c_name {
+            results.record_failed();
+            eprintln!("Name mismatch:\nRust: {rust_name:?}\nC:    {c_name:?}");
+            continue;
+        }
+
+        if rust_value != c_value {
+            results.record_failed();
+            eprintln!(
+                "Constant value mismatch for {rust_name}\nRust: {rust_value:?}\nC:    {c_value:?}",
+            );
+            continue;
+        }
+
+        results.record_passed();
+    }
+
+    results.expect_total_success();
+}
+
+#[test]
+fn cross_validate_layout_with_c() {
+    let mut c_layouts = Vec::new();
+
+    for l in get_c_output("layout").unwrap().lines() {
+        let (name, value) = l.split_once(';').expect("Missing first ';' separator");
+        let (size, alignment) = value.split_once(';').expect("Missing second ';' separator");
+        let size = size.parse().expect("Failed to parse size");
+        let alignment = alignment.parse().expect("Failed to parse alignment");
+        c_layouts.push((name.to_owned(), Layout { size, alignment }));
+    }
+
+    let mut results = Results::default();
+
+    for ((rust_name, rust_layout), (c_name, c_layout)) in RUST_LAYOUTS.iter().zip(c_layouts.iter())
+    {
+        if rust_name != c_name {
+            results.record_failed();
+            eprintln!("Name mismatch:\nRust: {rust_name:?}\nC:    {c_name:?}");
+            continue;
+        }
+
+        if rust_layout != c_layout {
+            results.record_failed();
+            eprintln!("Layout mismatch for {rust_name}\nRust: {rust_layout:?}\nC:    {c_layout:?}",);
+            continue;
+        }
+
+        results.record_passed();
+    }
+
+    results.expect_total_success();
+}
+
+fn get_c_output(name: &str) -> Result<String, Box<dyn Error>> {
+    let tmpdir = Builder::new().prefix("abi").tempdir()?;
+    let exe = tmpdir.path().join(name);
+    let c_file = Path::new("tests").join(name).with_extension("c");
+
+    let cc = Compiler::new().expect("configured compiler");
+    cc.compile(&c_file, &exe)?;
+
+    let mut cmd = Command::new(exe);
+    cmd.stderr(Stdio::inherit());
+    let out = cmd.output()?;
+    if !out.status.success() {
+        let (status, stdout) = (out.status, String::from_utf8_lossy(&out.stdout));
+        return Err(format!("command {cmd:?} failed, {status:?}\nstdout: {stdout}").into());
+    }
+
+    Ok(String::from_utf8(out.stdout)?)
+}
+
+const RUST_LAYOUTS: &[(&str, Layout)] = &[
+    (
+        "SecretBackendFlags",
+        Layout {
+            size: size_of::<SecretBackendFlags>(),
+            alignment: align_of::<SecretBackendFlags>(),
+        },
+    ),
+    (
+        "SecretBackendInterface",
+        Layout {
+            size: size_of::<SecretBackendInterface>(),
+            alignment: align_of::<SecretBackendInterface>(),
+        },
+    ),
+    (
+        "SecretCollection",
+        Layout {
+            size: size_of::<SecretCollection>(),
+            alignment: align_of::<SecretCollection>(),
+        },
+    ),
+    (
+        "SecretCollectionClass",
+        Layout {
+            size: size_of::<SecretCollectionClass>(),
+            alignment: align_of::<SecretCollectionClass>(),
+        },
+    ),
+    (
+        "SecretCollectionCreateFlags",
+        Layout {
+            size: size_of::<SecretCollectionCreateFlags>(),
+            alignment: align_of::<SecretCollectionCreateFlags>(),
+        },
+    ),
+    (
+        "SecretCollectionFlags",
+        Layout {
+            size: size_of::<SecretCollectionFlags>(),
+            alignment: align_of::<SecretCollectionFlags>(),
+        },
+    ),
+    (
+        "SecretError",
+        Layout {
+            size: size_of::<SecretError>(),
+            alignment: align_of::<SecretError>(),
+        },
+    ),
+    (
+        "SecretItem",
+        Layout {
+            size: size_of::<SecretItem>(),
+            alignment: align_of::<SecretItem>(),
+        },
+    ),
+    (
+        "SecretItemClass",
+        Layout {
+            size: size_of::<SecretItemClass>(),
+            alignment: align_of::<SecretItemClass>(),
+        },
+    ),
+    (
+        "SecretItemCreateFlags",
+        Layout {
+            size: size_of::<SecretItemCreateFlags>(),
+            alignment: align_of::<SecretItemCreateFlags>(),
+        },
+    ),
+    (
+        "SecretItemFlags",
+        Layout {
+            size: size_of::<SecretItemFlags>(),
+            alignment: align_of::<SecretItemFlags>(),
+        },
+    ),
+    (
+        "SecretPrompt",
+        Layout {
+            size: size_of::<SecretPrompt>(),
+            alignment: align_of::<SecretPrompt>(),
+        },
+    ),
+    (
+        "SecretPromptClass",
+        Layout {
+            size: size_of::<SecretPromptClass>(),
+            alignment: align_of::<SecretPromptClass>(),
+        },
+    ),
+    (
+        "SecretRetrievableInterface",
+        Layout {
+            size: size_of::<SecretRetrievableInterface>(),
+            alignment: align_of::<SecretRetrievableInterface>(),
+        },
+    ),
+    (
+        "SecretSchema",
+        Layout {
+            size: size_of::<SecretSchema>(),
+            alignment: align_of::<SecretSchema>(),
+        },
+    ),
+    (
+        "SecretSchemaAttribute",
+        Layout {
+            size: size_of::<SecretSchemaAttribute>(),
+            alignment: align_of::<SecretSchemaAttribute>(),
+        },
+    ),
+    (
+        "SecretSchemaAttributeType",
+        Layout {
+            size: size_of::<SecretSchemaAttributeType>(),
+            alignment: align_of::<SecretSchemaAttributeType>(),
+        },
+    ),
+    (
+        "SecretSchemaFlags",
+        Layout {
+            size: size_of::<SecretSchemaFlags>(),
+            alignment: align_of::<SecretSchemaFlags>(),
+        },
+    ),
+    (
+        "SecretSchemaType",
+        Layout {
+            size: size_of::<SecretSchemaType>(),
+            alignment: align_of::<SecretSchemaType>(),
+        },
+    ),
+    (
+        "SecretSearchFlags",
+        Layout {
+            size: size_of::<SecretSearchFlags>(),
+            alignment: align_of::<SecretSearchFlags>(),
+        },
+    ),
+    (
+        "SecretService",
+        Layout {
+            size: size_of::<SecretService>(),
+            alignment: align_of::<SecretService>(),
+        },
+    ),
+    (
+        "SecretServiceClass",
+        Layout {
+            size: size_of::<SecretServiceClass>(),
+            alignment: align_of::<SecretServiceClass>(),
+        },
+    ),
+    (
+        "SecretServiceFlags",
+        Layout {
+            size: size_of::<SecretServiceFlags>(),
+            alignment: align_of::<SecretServiceFlags>(),
+        },
+    ),
+];
+
+const RUST_CONSTANTS: &[(&str, &str)] = &[
+    ("SECRET_BACKEND_EXTENSION_POINT_NAME", "secret-backend"),
+    ("(gint) SECRET_BACKEND_LOAD_COLLECTIONS", "4"),
+    ("(gint) SECRET_BACKEND_NONE", "0"),
+    ("(gint) SECRET_BACKEND_OPEN_SESSION", "2"),
+    ("(guint) SECRET_COLLECTION_CREATE_NONE", "0"),
+    ("SECRET_COLLECTION_DEFAULT", "default"),
+    ("(guint) SECRET_COLLECTION_LOAD_ITEMS", "2"),
+    ("(guint) SECRET_COLLECTION_NONE", "0"),
+    ("SECRET_COLLECTION_SESSION", "session"),
+    ("(gint) SECRET_ERROR_ALREADY_EXISTS", "4"),
+    ("(gint) SECRET_ERROR_EMPTY_TABLE", "9"),
+    ("(gint) SECRET_ERROR_INVALID_FILE_FORMAT", "5"),
+    ("(gint) SECRET_ERROR_IS_LOCKED", "2"),
+    ("(gint) SECRET_ERROR_MISMATCHED_SCHEMA", "6"),
+    ("(gint) SECRET_ERROR_NO_MATCHING_ATTRIBUTE", "7"),
+    ("(gint) SECRET_ERROR_NO_SUCH_OBJECT", "3"),
+    ("(gint) SECRET_ERROR_PROTOCOL", "1"),
+    ("(gint) SECRET_ERROR_WRONG_TYPE", "8"),
+    ("(guint) SECRET_ITEM_CREATE_NONE", "0"),
+    ("(guint) SECRET_ITEM_CREATE_REPLACE", "2"),
+    ("(guint) SECRET_ITEM_LOAD_SECRET", "2"),
+    ("(guint) SECRET_ITEM_NONE", "0"),
+    ("(gint) SECRET_SCHEMA_ATTRIBUTE_BOOLEAN", "2"),
+    ("(gint) SECRET_SCHEMA_ATTRIBUTE_INTEGER", "1"),
+    ("(gint) SECRET_SCHEMA_ATTRIBUTE_STRING", "0"),
+    ("(guint) SECRET_SCHEMA_DONT_MATCH_NAME", "2"),
+    ("(guint) SECRET_SCHEMA_NONE", "0"),
+    ("(gint) SECRET_SCHEMA_TYPE_COMPAT_NETWORK", "1"),
+    ("(gint) SECRET_SCHEMA_TYPE_NOTE", "0"),
+    ("(guint) SECRET_SEARCH_ALL", "2"),
+    ("(guint) SECRET_SEARCH_LOAD_SECRETS", "8"),
+    ("(guint) SECRET_SEARCH_NONE", "0"),
+    ("(guint) SECRET_SEARCH_UNLOCK", "4"),
+    ("(guint) SECRET_SERVICE_LOAD_COLLECTIONS", "4"),
+    ("(guint) SECRET_SERVICE_NONE", "0"),
+    ("(guint) SECRET_SERVICE_OPEN_SESSION", "2"),
+];