add --prerelease

README.md

@@ -148,6 +148,8 @@
   - Skip installing redistributables
 - ```--redist```
   - Install or reinstall redistributables
+- ```--prerelease```
+  - Update to prerelease version of clients (currently only available for IW4x) and launcher
 
 ##### Example:
 ```shell
@@ -168,6 +170,7 @@ alterware-launcher.exe iw4x --bonus -u --path "C:\Games\IW4x" --pass "-console"
 - `args`: Pass additional arguments to the game. Default: `""`.
 - `use_https`: Use HTTPS for downloads. Default: `true`.
 - `skip_redist`: Skip redistributable installations. Default: `false`.
+- `prerelease`: Update to prerelease version of clients and launcher. Default: `false`.
 
 ---
 

src/config.rs

@@ -44,6 +44,7 @@ pub fn save_value(config_path: PathBuf, key: &str, value: bool) {
         "force_update" => config.force_update = value,
         "use_https" => config.use_https = value,
         "skip_redist" => config.skip_redist = value,
+        "prerelease" => config.prerelease = value,
         _ => (),
     }
     save(config_path, config);

src/github.rs

@@ -1,6 +1,21 @@
 use semver::Version;
 
-pub async fn latest_tag(owner: &str, repo: &str) -> Result<String, Box<dyn std::error::Error>> {
+pub async fn latest_tag(
+    owner: &str,
+    repo: &str,
+    prerelease: Option<bool>,
+) -> Result<String, Box<dyn std::error::Error>> {
+    if prerelease.unwrap_or(false) {
+        latest_tag_prerelease(owner, repo).await
+    } else {
+        latest_tag_full(owner, repo).await
+    }
+}
+
+pub async fn latest_tag_full(
+    owner: &str,
+    repo: &str,
+) -> Result<String, Box<dyn std::error::Error>> {
     let github_body = crate::http_async::get_body_string(
         format!(
             "https://api.github.com/repos/{}/{}/releases/latest",
@@ -8,34 +23,60 @@ pub async fn latest_tag(owner: &str, repo: &str) -> Result<String, Box<dyn std::
         )
         .as_str(),
     )
-    .await?;
+    .await
+    .map_err(|e| format!("Failed to fetch GitHub API: {}", e))?;
 
-    let github_json: serde_json::Value = serde_json::from_str(&github_body)?;
+    let github_json: serde_json::Value = serde_json::from_str(&github_body)
+        .map_err(|e| format!("Failed to parse GitHub API response: {}", e))?;
 
-    if let Some(tag_name) = github_json.get("tag_name") {
-        if let Some(tag_name_str) = tag_name.as_str() {
-            return Ok(tag_name_str.to_string().replace('"', ""));
-        }
+    let tag_name = github_json
+        .get("tag_name")
+        .ok_or("Missing tag_name field in GitHub response")?
+        .as_str()
+        .ok_or("tag_name is not a string")?;
+
+    Ok(tag_name.replace('"', ""))
 }
 
-    Ok("0.0.0".to_string())
+pub async fn latest_tag_prerelease(
+    owner: &str,
+    repo: &str,
+) -> Result<String, Box<dyn std::error::Error>> {
+    let github_body = crate::http_async::get_body_string(
+        format!("https://api.github.com/repos/{}/{}/releases", owner, repo).as_str(),
+    )
+    .await
+    .map_err(|e| format!("Failed to fetch GitHub API: {}", e))?;
+
+    let github_json: serde_json::Value = serde_json::from_str(&github_body)
+        .map_err(|e| format!("Failed to parse GitHub API response: {}", e))?;
+
+    let latest_release = github_json.get(0).ok_or("No releases found")?;
+
+    let tag_name = latest_release
+        .get("tag_name")
+        .ok_or("Release missing tag_name")?
+        .as_str()
+        .ok_or("tag_name is not a string")?;
+
+    Ok(tag_name.replace('"', ""))
 }
 
-pub async fn latest_version(owner: &str, repo: &str) -> Version {
-    match latest_tag(owner, repo).await {
-        Ok(tag) => {
+pub async fn latest_version(
+    owner: &str,
+    repo: &str,
+    prerelease: Option<bool>,
+) -> Result<Version, Box<dyn std::error::Error>> {
+    let tag = latest_tag(owner, repo, prerelease).await?;
     let cleaned_tag = tag.replace('v', "");
-            Version::parse(&cleaned_tag).unwrap_or_else(|_| Version::new(0, 0, 0))
-        }
-        Err(_) => {
-            crate::println_error!(
-                "Failed to get latest version for {owner}/{repo}, assuming we are up to date."
-            );
-            Version::new(0, 0, 0)
-        }
-    }
+    Version::parse(&cleaned_tag)
+        .map_err(|e| format!("Failed to parse version '{}': {}", cleaned_tag, e).into())
 }
 
-pub fn latest_release_url(owner: &str, repo: &str) -> String {
+pub fn download_url(owner: &str, repo: &str, tag: Option<&str>) -> String {
+    if let Some(tag) = tag {
+        format!("https://github.com/{owner}/{repo}/releases/download/{tag}")
+    } else {
         format!("https://github.com/{owner}/{repo}/releases/latest")
     }
+}

src/iw4x.rs

@@ -7,8 +7,8 @@ use crate::structs;
 
 use std::path::Path;
 
-pub async fn remote_revision() -> u16 {
-    match github::latest_tag(GH_IW4X_OWNER, GH_IW4X_REPO).await {
+pub async fn remote_revision(prerelease: Option<bool>) -> u16 {
+    match github::latest_tag(GH_IW4X_OWNER, GH_IW4X_REPO, prerelease).await {
         Ok(tag) => misc::rev_to_int(&tag),
         Err(_) => {
             crate::println_error!("Failed to get latest version for {GH_IW4X_OWNER}/{GH_IW4X_REPO}, assuming we are up to date.");
@@ -17,8 +17,8 @@ pub async fn remote_revision() -> u16 {
     }
 }
 
-pub async fn update(dir: &Path, cache: &mut structs::Cache) {
-    let remote = remote_revision().await;
+pub async fn update(dir: &Path, cache: &mut structs::Cache, prerelease: Option<bool>) {
+    let remote = remote_revision(prerelease).await;
     let local = misc::rev_to_int(&cache.iw4x_revision);
 
     if remote <= local && dir.join("iw4x.dll").exists() {
@@ -34,8 +34,8 @@ pub async fn update(dir: &Path, cache: &mut structs::Cache) {
     );
     http_async::download_file(
         &format!(
-            "{}/download/iw4x.dll",
-            github::latest_release_url(GH_IW4X_OWNER, GH_IW4X_REPO)
+            "{}/iw4x.dll",
+            github::download_url(GH_IW4X_OWNER, GH_IW4X_REPO, Some(&format!("r{remote}")))
         ),
         &dir.join("iw4x.dll"),
     )

src/main.rs

@@ -115,7 +115,7 @@ fn setup_desktop_links(path: &Path, game: &Game) {
 async fn auto_install(path: &Path, game: &Game<'_>) {
     setup_client_links(game, path);
     setup_desktop_links(path, game);
-    update(game, path, false, false, None, None).await;
+    update(game, path, false, false, None, None, None).await;
 }
 
 #[cfg(windows)]
@@ -337,6 +337,7 @@ async fn update(
     force: bool,
     skip_iw4x_sp: Option<bool>,
     ignore_required_files: Option<bool>,
+    prerelease: Option<bool>,
 ) {
     info!("Starting update for game engine: {}", game.engine);
     info!("Update path: {}", dir.display());
@@ -381,7 +382,7 @@ async fn update(
     };
 
     if game.engine == "iw4" {
-        iw4x::update(dir, &mut cache).await;
+        iw4x::update(dir, &mut cache, prerelease).await;
 
         let iw4x_dirs = vec!["iw4x", "zone/patch"];
         for d in &iw4x_dirs {
@@ -651,6 +652,7 @@ async fn main() {
         println!("    --ignore-required-files: Skip required files check");
         println!("    --skip-redist: Skip redistributable installation");
         println!("    --redist: (Re-)Install redistributables");
+        println!("    --prerelease: Update to prerelease version of clients and launcher");
         println!(
             "\nExample:\n    alterware-launcher.exe iw4x --bonus --pass \"-console -nointro\""
         );
@@ -779,8 +781,13 @@ async fn main() {
         *master_url = master_url.replace("https://", "http://");
     };
 
+    if arg_bool(&args, "--prerelease") {
+        cfg.prerelease = true;
+        arg_remove(&mut args, "--prerelease");
+    }
+
     if !arg_bool(&args, "--skip-launcher-update") && !cfg.skip_self_update {
-        self_update::run(cfg.update_only).await;
+        self_update::run(cfg.update_only, Some(cfg.prerelease)).await;
     } else {
         arg_remove(&mut args, "--skip-launcher-update");
     }
@@ -927,6 +934,7 @@ async fn main() {
                     cfg.force_update,
                     Some(&game != "iw4x-sp"),
                     Some(ignore_required_files),
+                    Some(cfg.prerelease),
                 )
                 .await;
                 if !cfg.update_only {

src/self_update.rs

@@ -3,20 +3,33 @@ use crate::global::*;
 
 use semver::Version;
 
-pub async fn self_update_available() -> bool {
-    let current_version: Version = Version::parse(env!("CARGO_PKG_VERSION")).unwrap();
-    let latest_version = github::latest_version(GH_OWNER, GH_REPO).await;
+pub async fn self_update_available(prerelease: Option<bool>) -> bool {
+    let current_version = match Version::parse(env!("CARGO_PKG_VERSION")) {
+        Ok(v) => v,
+        Err(e) => {
+            error!("Failed to parse current version: {}", e);
+            return false;
+        }
+    };
+
+    let latest_version = match github::latest_version(GH_OWNER, GH_REPO, prerelease).await {
+        Ok(v) => v,
+        Err(e) => {
+            error!("Failed to get latest version: {}", e);
+            return false;
+        }
+    };
 
     current_version < latest_version
 }
 
 #[cfg(not(windows))]
-pub async fn run(_update_only: bool) {
-    if self_update_available().await {
+pub async fn run(_update_only: bool, _prerelease: Option<bool>) {
+    if self_update_available(None).await {
         crate::println_info!("A new version of the AlterWare launcher is available.");
         crate::println_info!(
             "Download it at {}",
-            github::latest_release_url(GH_OWNER, GH_REPO)
+            github::download_url(GH_OWNER, GH_REPO, None)
         );
         println!("Launching in 10 seconds..");
         tokio::time::sleep(tokio::time::Duration::from_secs(10)).await;
@@ -37,7 +50,7 @@ pub fn restart() -> std::io::Error {
 }
 
 #[cfg(windows)]
-pub async fn run(update_only: bool) {
+pub async fn run(update_only: bool, prerelease: Option<bool>) {
     use std::{fs, path::PathBuf};
 
     use crate::http_async;
@@ -60,11 +73,11 @@ pub async fn run(update_only: bool) {
         }
     }
 
-    if self_update_available().await {
+    if self_update_available(prerelease).await {
         crate::println_info!("Performing launcher self-update.");
         println!(
             "If you run into any issues, please download the latest version at {}",
-            github::latest_release_url(GH_OWNER, GH_REPO)
+            github::download_url(GH_OWNER, GH_REPO, None)
         );
 
         let update_binary = PathBuf::from("alterware-launcher-update.exe");
@@ -83,7 +96,7 @@ pub async fn run(update_only: bool) {
         http_async::download_file(
             &format!(
                 "{}/download/{}",
-                github::latest_release_url(GH_OWNER, GH_REPO),
+                github::download_url(GH_OWNER, GH_REPO, None),
                 launcher_name
             ),
             &file_path,

src/structs.rs

@@ -46,6 +46,8 @@ pub struct Config {
     pub use_https: bool,
     #[serde(default)]
     pub skip_redist: bool,
+    #[serde(default)]
+    pub prerelease: bool,
 }
 
 impl Default for Config {
@@ -60,6 +62,7 @@ impl Default for Config {
             engine: String::default(),
             use_https: true,
             skip_redist: false,
+            prerelease: false,
         }
     }
 }