Add check-update command

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "syno-photos-util"
-version = "0.1.2"
+version = "0.2.0"
 edition = "2021"
 description = "Helper for a number of tasks unavailable in Synology Photos web interface"
 license = "GPL-3.0-or-later"

src/cli.rs

@@ -79,9 +79,6 @@ pub enum Command {
         folder_path: String,
     },
 
-    /// Check DSM sign-in status
-    Status,
-
     /// Sign out of DSM
     ///
     /// Removes session key from $HOME/.syno-photo-util file
@@ -93,6 +90,12 @@ pub enum Command {
         #[arg(long)]
         forget: bool,
     },
+
+    /// Check DSM sign-in status
+    Status,
+
+    /// Check if new version is available
+    CheckUpdate,
 }
 
 fn try_parse_duration(arg: &str) -> Result<Duration> {

src/commands/check_update.rs

@@ -0,0 +1,46 @@
+use crate::http::{HttpClient, HttpResponse};
+use crate::io::Io;
+use anyhow::{anyhow, bail, Result};
+use io::Write;
+use std::io;
+
+pub async fn handle<C: HttpClient, I: Io>(
+    installed_version: &str,
+    client: &C,
+    io: &mut I,
+) -> Result<()> {
+    let response = client
+        .get("https://index.crates.io/sy/no/syno-photos-util")
+        .await?;
+    let status = response.status();
+    if !status.is_success() {
+        bail!(status
+            .canonical_reason()
+            .unwrap_or(status.as_str())
+            .to_string())
+    }
+    let remote_crate = response
+        .text()
+        .await?
+        .lines()
+        .map(serde_json::from_str::<dto::Crate>)
+        .filter_map(|r| r.ok())
+        .rfind(|c| !c.yanked)
+        .ok_or(anyhow!("Unable to read creates.io response"))?;
+    if remote_crate.vers != installed_version {
+        writeln!(io.stdout(), "Version {} is available!", remote_crate.vers)?;
+    } else {
+        writeln!(io.stdout(), "Everything up to date")?;
+    }
+    Ok(())
+}
+
+mod dto {
+    use serde::Deserialize;
+
+    #[derive(Debug, PartialEq, Deserialize)]
+    pub struct Crate {
+        pub vers: String,
+        pub yanked: bool,
+    }
+}

src/commands/mod.rs

@@ -9,6 +9,7 @@ use syno_api::foto::search::dto::Search;
 use syno_api::foto::setting::user::dto::UserSettings;
 
 mod api_client;
+pub mod check_update;
 mod error;
 pub mod export;
 pub mod list;

src/lib.rs

@@ -2,7 +2,7 @@ use crate::http::HeaderValue;
 pub use crate::{cli::Cli, fs::FsImpl, http::CookieClient, io::IoImpl};
 use crate::{
     cli::Command,
-    commands::{export, list, login, logout, status},
+    commands::{check_update, export, list, login, logout, status},
     conf::Conf,
     fs::Fs,
     http::{CookieStore, HttpClient},
@@ -25,6 +25,7 @@ pub async fn run<I: Io, C: HttpClient, S: CookieStore, F: Fs>(
     io: &mut I,
     client: &mut CookieClient<C, S>,
     fs: &F,
+    installed_version: &str,
 ) -> Result<()> {
     let mut conf = Conf::try_load(fs).unwrap_or_else(Conf::new);
     if let Some(session) = &conf.session {
@@ -50,7 +51,6 @@ pub async fn run<I: Io, C: HttpClient, S: CookieStore, F: Fs>(
             )
             .await
         }
-        Command::Status => status::handle(&conf, io),
         Command::List { album_name } => {
             list::handle(album_name.as_str(), &conf, &client.client, io).await
         }
@@ -68,5 +68,7 @@ pub async fn run<I: Io, C: HttpClient, S: CookieStore, F: Fs>(
             .await
         }
         Command::Logout { forget } => logout::handle(conf, forget, fs),
+        Command::Status => status::handle(&conf, io),
+        Command::CheckUpdate => check_update::handle(installed_version, &client.client, io).await,
     }
 }

src/main.rs

@@ -14,8 +14,11 @@ async fn main() -> Result<()> {
         .without_timestamps()
         .env()
         .init()?;
+
     let cli = Cli::parse();
+
     let mut io = IoImpl::new();
+
     let cookie_store = Arc::new(Jar::default());
     let mut client = CookieClient {
         client: ClientBuilder::default()
@@ -24,5 +27,9 @@ async fn main() -> Result<()> {
             .build()?,
         cookie_store,
     };
-    syno_photos_util::run(cli, &mut io, &mut client, &FsImpl).await
+
+    /* This crate version */
+    let installed_version = env!("CARGO_PKG_VERSION");
+
+    syno_photos_util::run(cli, &mut io, &mut client, &FsImpl, installed_version).await
 }