1use std::{
2 fs::{create_dir_all, File},
3 io::{self, Write},
4 path::PathBuf,
5};
6
7use crate::Package;
8
9pub fn unpack_package(package: Package, directory: &PathBuf) -> Result<(), io::Error> {
10 create_dir_all(directory)?;
11
12 for asset in package.assets.values() {
13 let asset_file = directory.join(&asset.pathname);
14 let meta_file = asset_file.with_extension("meta");
15
16 if let Some(parent) = asset_file.parent() {
17 create_dir_all(parent)?;
18 }
19
20 if let Some(data) = &asset.data {
21 let mut file = File::create(&asset_file).unwrap();
22 file.write_all(data)?;
23 }
24
25 if let Some(meta) = &asset.meta {
26 let mut file = File::create(&meta_file).unwrap();
27 file.write_all(meta)?;
28 }
29 }
30
31 Ok(())
32}
33
34#[cfg(test)]
35mod test {
36 use std::{fs::remove_dir_all, io::Read};
37
38 use tempfile::tempdir;
39 use uuid::Uuid;
40
41 use super::*;
42 use crate::PackageAssetBuilder;
43
44 #[test]
45 fn unpack() {
46 let temp_dir = tempdir().unwrap().into_path();
47
48 let mut package = Package::new();
49 let uuid = Uuid::new_v4();
50 let mut builder = PackageAssetBuilder::default();
51 builder.pathname = Some("Assets/SomeMaterial".to_string());
52 builder.data = Some(vec![9, 10, 11, 12]);
53 builder.meta = Some(vec![5, 6, 7, 8]);
54 package.assets.insert(uuid, builder.build());
55
56 unpack_package(package, &temp_dir).unwrap();
57
58 let asset_file = temp_dir.join("Assets/SomeMaterial");
59 let meta_file = asset_file.with_extension("meta");
60
61 assert!(asset_file.exists());
62 assert!(meta_file.exists());
63
64 let mut data = Vec::new();
65 File::open(&asset_file)
66 .unwrap()
67 .read_to_end(&mut data)
68 .unwrap();
69 assert_eq!(data, vec![9, 10, 11, 12]);
70
71 let mut meta = Vec::new();
72 File::open(meta_file)
73 .unwrap()
74 .read_to_end(&mut meta)
75 .unwrap();
76 assert_eq!(meta, vec![5, 6, 7, 8]);
77
78 remove_dir_all(temp_dir).unwrap();
79 }
80}