WIP

src/Rust/Cargo.lock

@@ -1321,18 +1321,18 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "strum"
-version = "0.25.0"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
+checksum = "723b93e8addf9aa965ebe2d11da6d7540fa2283fcea14b3371ff055f7ba13f5f"
 dependencies = [
  "strum_macros",
 ]
 
 [[package]]
 name = "strum_macros"
-version = "0.25.3"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
+checksum = "7a3417fc93d76740d974a01654a09777cb500428cc874ca9f45edfe0c4d4cd18"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -1581,6 +1581,7 @@ dependencies = [
  "strum",
  "tempfile",
  "ureq",
+ "url",
  "wait-timeout",
  "waitpid-any",
  "webview2-com",

src/Rust/Cargo.toml

@@ -58,7 +58,7 @@ semver = "1.0"
 chrono = "0.4"
 wait-timeout = "0.2"
 lazy_static = "1.4"
-strum = { version = "0.25", features = ["derive"] }
+strum = { version = "0.26", features = ["derive"] }
 ureq = { version = "2.9", default-features = false, features = [
     "native-tls",
     "gzip",
@@ -74,6 +74,7 @@ remove_dir_all = { git = "https://github.com/caesay/remove_dir_all.git", feature
 ] }
 zstd = "0.13"
 sha1_smol = "1.0"
+url = "2.5"
 
 [target.'cfg(unix)'.dependencies]
 native-dialog = "0.7"

src/Rust/src/commands/check.rs

@@ -0,0 +1,38 @@
+use crate::bundle::Manifest;
+use anyhow::{bail, Result};
+use std::path::PathBuf;
+use url::{ParseError, Url};
+
+pub fn check(root_path: &PathBuf, app: &Manifest, path: String, allow_downgrade: bool, channel: Option<String>) -> Result<()> {
+    match Url::parse(&path) {
+        Ok(url) => check_url(root_path, app, url, allow_downgrade, channel),
+        _ => {
+            let buf = PathBuf::from(&path);
+            if !buf.exists() {
+                bail!("Path must be a valid HTTP Url or a path to an existing directory: {}", path);
+            }
+            check_dir(root_path, app, buf, allow_downgrade, channel)
+        }
+    }
+}
+
+fn check_url(root_path: &PathBuf, app: &Manifest, path: Url, allow_downgrade: bool, channel: Option<String>) -> Result<()> {
+    let channel = channel.unwrap_or(app.channel.clone());
+    let releases_name = format!("releases.{}.json", channel);
+
+    todo!();
+}
+
+fn check_dir(root_path: &PathBuf, app: &Manifest, path: PathBuf, allow_downgrade: bool, channel: Option<String>) -> Result<()> {
+    let channel = channel.unwrap_or(app.channel.clone());
+    let releases_name = format!("releases.{}.json", channel);
+    let releases_path = path.join(&releases_name);
+    if !releases_path.exists() {
+        bail!("Could not find releases file: {}",  path.to_string_lossy());
+    }
+
+    
+
+
+    todo!();
+}

src/Rust/src/commands/mod.rs

@@ -4,6 +4,9 @@ pub use apply::*;
 mod patch;
 pub use patch::*;
 
+mod check;
+pub use check::*;
+
 #[cfg(target_os = "linux")]
 mod apply_linux_impl;
 #[cfg(target_os = "macos")]

src/Rust/src/shared/bundle.rs

@@ -308,6 +308,7 @@ pub struct Manifest {
     pub main_exe: String,
     pub os: String,
     pub os_min_version: String,
+    pub channel: String,
 }
 
 #[cfg(target_os = "windows")]
@@ -407,6 +408,8 @@ pub fn read_manifest_from_string(xml: &str) -> Result<Manifest> {
                     obj.os = text;
                 } else if el_name == "osMinVersion" {
                     obj.os_min_version = text;
+                } else if el_name == "channel" {
+                    obj.channel = text;
                 }
             }
             Ok(XmlEvent::EndElement { .. }) => {

src/Rust/src/update.rs

@@ -27,6 +27,17 @@ fn root_command() -> Command {
         .arg(arg!(--patch <FILE> "The Zstd patch to apply to the old file").required(true).value_parser(value_parser!(PathBuf)))
         .arg(arg!(--output <FILE> "The file to create with the patch applied").required(true).value_parser(value_parser!(PathBuf)))
     )
+    .subcommand(Command::new("check")
+        .about("Checks for available updates")
+        .arg(arg!([PATH] "HTTP URL or path to local folder containing an update source.").required(true))
+        .arg(arg!(--downgrade "Allow version downgrade"))
+        .arg(arg!(--channel <NAME> "Explicitly switch to a specific channel"))
+    )
+    .subcommand(Command::new("download")
+        .about("Download/copies an available remote file into the packages directory.")
+        .arg(arg!([PATH] "HTTP URL or path to local folder containing an update source.").required(true))
+        .arg(arg!([NAME] "The remote package file to download.").required(true))
+    )
     .arg(arg!(--verbose "Print debug messages to console / log").global(true))
     .arg(arg!(--nocolor "Disable colored output").hide(true).global(true))
     .arg(arg!(-s --silent "Don't show any prompts / dialogs").global(true))