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use std::cmp::Ordering;
use anyhow::Context;
use anyhow::Error;
use anyhow::Result;
use anyhow::anyhow;
use getset::Getters;
use pom::parser::Parser as PomParser;
use crate::package::PackageName;
use crate::package::PackageVersion;
use crate::filestore::path::*;
#[derive(Clone, PartialEq, Eq, Debug, Getters)]
pub struct Artifact {
#[getset(get = "pub")]
path: ArtifactPath,
#[getset(get = "pub")]
name: PackageName,
#[getset(get = "pub")]
version: PackageVersion,
}
impl PartialOrd for Artifact {
fn partial_cmp(&self, other: &Artifact) -> Option<Ordering> {
self.version.partial_cmp(&other.version)
}
}
impl Ord for Artifact {
fn cmp(&self, other: &Self) -> Ordering {
self.version.cmp(&other.version)
}
}
impl Artifact {
pub fn load(root: &StoreRoot, path: ArtifactPath) -> Result<Self> {
let joined_fullpath = root.join(&path);
if joined_fullpath.is_file() {
let (name, version) = Self::parse_path(root, &path)
.with_context(|| anyhow!("Pathing artifact path: '{}'", joined_fullpath.display()))?;
Ok(Artifact {
path,
name,
version
})
} else {
if path.is_dir() {
Err(anyhow!("Cannot load non-file path: {}", path.display()))
} else {
Err(anyhow!("Path does not exist: {}", path.display()))
}
}
}
fn parse_path(root: &StoreRoot, path: &ArtifactPath) -> Result<(PackageName, PackageVersion)> {
path.file_stem()
.ok_or_else(|| anyhow!("Cannot get filename from {}", (root.join(path)).display()))?
.to_owned()
.into_string()
.map_err(|_| anyhow!("Internal conversion of '{}' to UTF-8", (root.join(path)).display()))
.and_then(|s| Self::parser().parse(s.as_bytes()).map_err(Error::from))
}
/// Construct a parser that parses a Vec<u8> into (PackageName, PackageVersion)
fn parser<'a>() -> PomParser<'a, u8, (PackageName, PackageVersion)> {
(PackageName::parser() + crate::util::parser::dash() + PackageVersion::parser())
.map(|((name, _), vers)| (name, vers))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::package::tests::pname;
use crate::package::tests::pversion;
use crate::filestore::path::StoreRoot;
use crate::filestore::path::ArtifactPath;
use std::path::PathBuf;
#[test]
fn test_parser_one_letter_name() {
let p = ArtifactPath::new(PathBuf::from("a-1.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("a"));
assert_eq!(version, pversion("1"));
}
#[test]
fn test_parser_multi_letter_name() {
let p = ArtifactPath::new(PathBuf::from("foo-1.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo"));
assert_eq!(version, pversion("1"));
}
#[test]
fn test_parser_multi_char_version() {
let p = ArtifactPath::new(PathBuf::from("foo-1123.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo"));
assert_eq!(version, pversion("1123"));
}
#[test]
fn test_parser_multi_char_version_dashed() {
let p = ArtifactPath::new(PathBuf::from("foo-1-1-2-3.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo"));
assert_eq!(version, pversion("1-1-2-3"));
}
#[test]
fn test_parser_multi_char_version_dashed_and_dotted() {
let p = ArtifactPath::new(PathBuf::from("foo-1-1.2-3.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo"));
assert_eq!(version, pversion("1-1.2-3"));
}
#[test]
fn test_parser_alnum_version() {
let p = ArtifactPath::new(PathBuf::from("foo-1-1.2a3.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo"));
assert_eq!(version, pversion("1-1.2a3"));
}
#[test]
fn test_parser_package_name_with_number() {
let p = ArtifactPath::new(PathBuf::from("foo2-1-1.2a3.ext")).unwrap();
let root = StoreRoot::new(PathBuf::from("/"));
let r = Artifact::parse_path(&root, &p);
assert!(r.is_ok(), "Expected to be Ok(_): {:?}", r);
let (name, version) = r.unwrap();
assert_eq!(name, pname("foo2"));
assert_eq!(version, pversion("1-1.2a3"));
}
}
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