use zipcrawl::ZipManager;
use super::super::super::dep::types::{DepEntry, DepKind, VersionRange};
use crate::error::Result;
pub fn extract(mng: &mut ZipManager) -> Result<Vec<DepEntry>> {
let raw = mng.read_to_string("mcmod.info")?;
let entries = serde_json::from_str::<Vec<super::metadata::ForgeLegacyModEntry>>(&raw)?;
let mut deps = Vec::new();
for entry in entries {
for dep_name in entry.dependencies {
deps.push(DepEntry {
name: dep_name,
kind: DepKind::Required,
version_range: VersionRange::parse(None),
});
}
}
Ok(deps)
}
#[cfg(test)]
#[allow(clippy::unwrap_used, clippy::default_trait_access)]
mod tests {
use std::io::{Cursor, Write};
use zip::ZipWriter;
use super::*;
use crate::core::dep::types::DepKind;
fn make_zip_bytes(contents: &[(&str, &str)]) -> Vec<u8> {
let mut buf = Cursor::new(Vec::new());
let mut zip = ZipWriter::new(&mut buf);
for (name, content) in contents {
zip.start_file::<&str, ()>(name, Default::default())
.unwrap();
zip.write_all(content.as_bytes()).unwrap();
}
zip.finish().unwrap();
buf.into_inner()
}
#[test]
fn extract_dependencies() {
let json = r#"[
{"modid": "mod_a", "dependencies": ["lib_x"]},
{"modid": "mod_b", "dependencies": ["lib_x", "lib_y"]}
]"#;
let bytes = make_zip_bytes(&[("mcmod.info", json)]);
let mut mng = ZipManager::from_reader(&mut Cursor::new(bytes)).unwrap();
let deps = extract(&mut mng).unwrap();
assert_eq!(deps.len(), 3);
assert!(deps.iter().all(|d| d.kind == DepKind::Required));
assert!(deps.iter().any(|d| d.name == "lib_x"));
assert!(deps.iter().any(|d| d.name == "lib_y"));
}
#[test]
fn extract_empty_when_no_deps() {
let json = r#"[
{"modid": "mod_a"},
{"modid": "mod_b"}
]"#;
let bytes = make_zip_bytes(&[("mcmod.info", json)]);
let mut mng = ZipManager::from_reader(&mut Cursor::new(bytes)).unwrap();
let deps = extract(&mut mng).unwrap();
assert!(deps.is_empty());
}
}