cli/finish: add --open argument

Closes #15

src/cli.rs

@@ -40,6 +40,6 @@ pub enum SubCommand {
     List,
     Start(self::start::Args),
     Pause,
-    Finish,
+    Finish(self::finish::Args),
     Status,
 }

src/cli/finish.rs

@@ -1,17 +1,32 @@
 use crate::repo::{self, Repository};
 
-pub fn execute(repo: impl Repository) {
-    match repo.finish_task() {
+#[derive(clap::Args)]
+pub struct Args {
+    #[clap(short, long)]
+    open: bool,
+}
+
+pub fn execute(repo: impl Repository, args: Args) {
+    let task = match repo.finish_task() {
         Err(repo::Error::NotFound) => {
-            eprintln!("You can use the finish subcommand only when you have an active task")
-        }
-        Err(err) => eprintln!("Cannot finish the task: {}", err),
-        Ok(task) => {
-            println!("The task was finished successfully");
-            println!("  {}", task.name);
-            if let Some(link) = task.link {
-                println!("  link: {}", link);
-            }
+            return eprintln!("You can use the finish subcommand only when you have an active task")
         }
+        Err(err) => return eprintln!("Cannot finish the task: {}", err),
+        Ok(task) => task,
+    };
+
+    println!("The task was finished successfully");
+    println!("  {}", task.name);
+    if let Some(link) = task.link.as_ref() {
+        println!("  link: {}", link);
+    }
+
+    if let (Some(link), true) = (task.link.as_ref(), args.open) {
+        log::debug!("opening link...");
+        std::process::Command::new("xdg-open")
+            .arg(link)
+            .spawn()
+            .expect("failed to start");
+        log::debug!("opened");
     }
 }

src/main.rs

@@ -62,8 +62,8 @@ fn main() {
         cli::SubCommand::Pause => {
             cli::pause::execute(repo);
         }
-        cli::SubCommand::Finish => {
-            cli::finish::execute(repo);
+        cli::SubCommand::Finish(args) => {
+            cli::finish::execute(repo, args);
         }
         cli::SubCommand::Status => {
             cli::status::execute(repo);