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use std::path::{Path, PathBuf};
use anyhow::{bail, Result};
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct AptConfig(PathBuf);
impl AptConfig {
pub fn new(path: impl AsRef<Path>) -> Result<Self> {
let path = path.as_ref();
if path.as_os_str().is_empty() || path.is_dir() {
bail!("APT configuration must be a file path: {}", path.display());
}
Ok(Self(path.to_path_buf()))
}
pub fn as_path(&self) -> &Path {
&self.0
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct PackageRequest {
workdir: PathBuf,
apt_config: AptConfig,
packages: Vec<String>,
selectors: Vec<String>,
}
impl PackageRequest {
pub fn new(
workdir: impl AsRef<Path>,
apt_config: AptConfig,
packages: impl IntoIterator<Item = impl Into<String>>,
selectors: impl IntoIterator<Item = impl Into<String>>,
) -> Result<Self> {
let workdir = workdir.as_ref();
if workdir.as_os_str().is_empty() {
bail!("Hasher workdir cannot be empty");
}
let mut packages = normalize("package", packages)?;
let mut selectors = normalize("package selector", selectors)?;
packages.sort();
packages.dedup();
selectors.sort();
selectors.dedup();
Ok(Self {
workdir: workdir.to_path_buf(),
apt_config,
packages,
selectors,
})
}
pub fn workdir(&self) -> &Path {
&self.workdir
}
pub fn apt_config(&self) -> &AptConfig {
&self.apt_config
}
pub fn packages(&self) -> &[String] {
&self.packages
}
pub fn selectors(&self) -> &[String] {
&self.selectors
}
}
fn normalize(
kind: &str,
values: impl IntoIterator<Item = impl Into<String>>,
) -> Result<Vec<String>> {
values
.into_iter()
.map(Into::into)
.map(|value: String| {
if value.trim().is_empty() {
bail!("{kind} cannot be empty");
}
Ok(value)
})
.collect()
}
pub trait PackageInstaller {
fn install(&self, request: &PackageRequest) -> Result<()>;
}
impl<T: PackageInstaller + ?Sized> PackageInstaller for &T {
fn install(&self, request: &PackageRequest) -> Result<()> {
(*self).install(request)
}
}
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