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use crate::gio;
use crate::Sysroot;
use std::path::PathBuf;
#[derive(Clone, Debug, Default)]
/// Builder object for `Sysroot`.
pub struct SysrootBuilder {
path: Option<PathBuf>,
mount_namespace_in_use: bool,
}
impl SysrootBuilder {
/// Create a new builder for `Sysroot`.
pub fn new() -> Self {
Self::default()
}
/// Set the path to the sysroot location.
pub fn path(mut self, path: Option<PathBuf>) -> Self {
self.path = path;
self
}
#[cfg(any(feature = "v2020_1", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v2020_1")))]
/// Set whether the logic is running in its own mount namespace.
pub fn mount_namespace_in_use(mut self, mount_namespace_in_use: bool) -> Self {
self.mount_namespace_in_use = mount_namespace_in_use;
self
}
/// Load an existing `Sysroot` from disk, finalizing this builder.
pub fn load(self, cancellable: Option<&gio::Cancellable>) -> Result<Sysroot, glib::Error> {
let sysroot = self.configure_common();
sysroot.load(cancellable)?;
Ok(sysroot)
}
/// Create a new `Sysroot` on disk, finalizing this builder.
pub fn create(self, cancellable: Option<&gio::Cancellable>) -> Result<Sysroot, glib::Error> {
let sysroot = self.configure_common();
sysroot.ensure_initialized(cancellable)?;
sysroot.load(cancellable)?;
Ok(sysroot)
}
/// Perform common configuration steps, returning a not-yet-fully-loaded `Sysroot`.
fn configure_common(self) -> Sysroot {
let sysroot = {
let opt_file = self.path.map(gio::File::for_path);
Sysroot::new(opt_file.as_ref())
};
#[cfg(feature = "v2020_1")]
if self.mount_namespace_in_use {
sysroot.set_mount_namespace_in_use();
}
sysroot
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_sysroot_create_load_empty() {
// Create and load an empty sysroot. Make sure it can be properly
// inspected as empty, without panics.
let tmpdir = tempfile::tempdir().unwrap();
let path_created = {
let tmp_path = Some(tmpdir.path().to_path_buf());
let builder = SysrootBuilder::new().path(tmp_path);
let sysroot = builder.create(gio::Cancellable::NONE).unwrap();
assert!(sysroot.fd() >= 0);
assert_eq!(sysroot.deployments().len(), 0);
assert_eq!(sysroot.booted_deployment(), None);
assert_eq!(sysroot.bootversion(), 0);
assert_eq!(sysroot.subbootversion(), 0);
sysroot.cleanup(gio::Cancellable::NONE).unwrap();
sysroot.path().unwrap()
};
let path_loaded = {
let tmp_path = Some(tmpdir.path().to_path_buf());
let builder = SysrootBuilder::new().path(tmp_path);
let sysroot = builder.create(gio::Cancellable::NONE).unwrap();
assert!(sysroot.fd() >= 0);
assert_eq!(sysroot.deployments().len(), 0);
assert_eq!(sysroot.booted_deployment(), None);
assert_eq!(sysroot.bootversion(), 0);
assert_eq!(sysroot.subbootversion(), 0);
sysroot.cleanup(gio::Cancellable::NONE).unwrap();
sysroot.path().unwrap()
};
assert_eq!(path_created.to_string(), path_loaded.to_string());
}
}
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