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Add install_mod_from_url function to balalib #17

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Add install_mod_from_url function to balalib #17

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bdaac64
Add install_mod_from_url function to balalib
sbordeyne Aug 25, 2024
659ad91
format
sbordeyne Aug 25, 2024
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4 changes: 4 additions & 0 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,10 @@ fn balalib(lua: &Lua) -> LuaResult<LuaTable> {
"sort_mods",
lua.create_function(|lua, mods: LuaTable| sort_mods(lua, mods))?,
)?;
exports.set(
"install_mod_from_url",
lua.create_function(|lua, url: String| install_mod_from_url(lua, url))?,
)?;
lua.load(format!("G.VERSION = G.VERSION .. '\\nBalalib {}'", VERSION).as_str())
.exec()?;
Ok(exports)
Expand Down
106 changes: 93 additions & 13 deletions src/mods.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -13,23 +13,21 @@ pub fn download_mod(lua: &Lua, mod_info: ModInfo) -> LuaResult<()> {
let repo = mod_info.url.split("/").nth(4).unwrap();
let version = mod_info.version;
let id = mod_info.id;
let client = reqwest::blocking::Client::new();
let url = format!(
"https://github.com/{}/{}/releases/download/{}/{}.tar.gz",
owner, repo, version, id
);
let response = client
.get(url.clone())
.send()
.expect("Failed to get response");
let body = response.bytes().expect("Failed to get body");
let love_dir = get_love_dir(lua).expect("Failed to get love dir");
let mods_dir = format!("{}/mods", love_dir);
let mod_dir = format!("{}/{}", mods_dir, id);
std::fs::create_dir_all(&mod_dir)?;
let tar = body.to_vec();
unpack_tar(&mod_dir, tar.clone()).expect(format!("Failed to unpack tar: {}", url).as_str());
Ok(())
match install_mod_from_url(lua, url) {
Ok(result_table) => {
if result_table.contains_key("error").unwrap() {
return Err(LuaError::RuntimeError(
result_table.get::<_, String>("error")?,
));
}
return Ok(());
}
Err(e) => Err(e),
}
}

pub fn unpack_tar(dir: &str, tar: Vec<u8>) -> Result<(), Box<dyn std::error::Error>> {
Expand Down Expand Up @@ -299,3 +297,85 @@ pub fn sort_mods<'a>(lua: &'a Lua, mods_table: LuaTable<'a>) -> LuaResult<LuaTab

Ok(sorted_mods_table)
}

pub fn install_mod_from_url<'a>(lua: &'a Lua, url: String) -> LuaResult<LuaTable<'a>> {
let result_table = lua.create_table()?;
let client = reqwest::blocking::Client::new();
match client.get(url.clone()).send() {
Ok(response) => {
match response.bytes() {
Ok(body) => {
match get_love_dir(lua) {
Ok(love_dir) => {
let mods_dir = format!("{}/mods", love_dir);
let mod_dir = format!("{}/{}", mods_dir, "tmp_mod");
std::fs::create_dir_all(&mod_dir)?;
let tar = body.to_vec();
match unpack_tar(&mod_dir, tar.clone()) {
Ok(_) => {
let manifest_file = format!("{}/manifest.json", mod_dir);
if !std::path::Path::new(&manifest_file).exists() {
// clean up temporary mod directory
std::fs::remove_dir_all(&mod_dir)?;
result_table.set(
"error",
format!("Failed to find manifest.json in {}", url),
)?;
return Ok(result_table);
}
let manifest = std::fs::read_to_string(manifest_file)?;
match serde_json::from_str(&manifest) {
Ok(manifest) => {
let manifest: LocalMod = manifest;
// rename tmp mod directory to mod id
let mod_dir_new =
format!("{}/{}", mods_dir, manifest.id);
std::fs::rename(&mod_dir, &mod_dir_new)?;
result_table.set("mod_id", manifest.id)?;
return Ok(result_table);
}
Err(e) => {
// clean up temporary mod directory
std::fs::remove_dir_all(&mod_dir)?;
result_table.set(
"error",
format!("Failed to parse manifest.json: {}", e),
)?;
return Ok(result_table);
}
}
}
Err(e) => {
// clean up temporary mod directory
std::fs::remove_dir_all(&mod_dir)?;
result_table.set(
"error",
format!("Failed to unpack tar: {}, error: {}", url, e)
.as_str(),
)?;
return Ok(result_table);
}
}
}
Err(e) => {
result_table
.set("error", format!("Failed to get love directory: {}", e))?;
return Ok(result_table);
}
}
}
Err(e) => {
result_table.set("error", format!("Failed to get body: {}", e))?;
return Ok(result_table);
}
}
}
Err(e) => {
result_table.set(
"error",
format!("Failed to fetch mod from URL: {}, error: {}", url, e),
)?;
Ok(result_table)
}
}
}
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