feat(cli): add kill cmd

This commit adds a new komorebic command, "kill", to kill background
processes that may be started by "komorebic start", without terminating
the main komorebi process.

This is useful when iterating on changes to external components like the
bar which may require restarts.

komorebic/src/main.rs

@@ -800,6 +800,22 @@ struct Stop {
     masir: bool,
 }
 
+#[derive(Parser)]
+struct Kill {
+    /// Kill whkd if it is running as a background process
+    #[clap(long)]
+    whkd: bool,
+    /// Kill ahk if it is running as a background process
+    #[clap(long)]
+    ahk: bool,
+    /// Kill komorebi-bar if it is running as a background process
+    #[clap(long)]
+    bar: bool,
+    /// Kill masir if it is running as a background process
+    #[clap(long)]
+    masir: bool,
+}
+
 #[derive(Parser)]
 struct SaveResize {
     /// File to which the resize layout dimensions should be saved
@@ -922,6 +938,8 @@ enum SubCommand {
     Start(Start),
     /// Stop the komorebi.exe process and restore all hidden windows
     Stop(Stop),
+    /// Kill background processes started by komorebic
+    Kill(Kill),
     /// Check komorebi configuration and related files for common errors
     Check,
     /// Show the path to komorebi.json
@@ -2305,6 +2323,78 @@ Stop-Process -Name:komorebi -ErrorAction SilentlyContinue
                 }
             }
         }
+        SubCommand::Kill(arg) => {
+            if arg.whkd {
+                let script = r"
+Stop-Process -Name:whkd -ErrorAction SilentlyContinue
+                ";
+                match powershell_script::run(script) {
+                    Ok(_) => {
+                        println!("{script}");
+                    }
+                    Err(error) => {
+                        println!("Error: {error}");
+                    }
+                }
+            }
+
+            if arg.bar {
+                let script = r"
+Stop-Process -Name:komorebi-bar -ErrorAction SilentlyContinue
+                ";
+                match powershell_script::run(script) {
+                    Ok(_) => {
+                        println!("{script}");
+                    }
+                    Err(error) => {
+                        println!("Error: {error}");
+                    }
+                }
+            }
+
+            if arg.masir {
+                let script = r"
+Stop-Process -Name:masir -ErrorAction SilentlyContinue
+                ";
+                match powershell_script::run(script) {
+                    Ok(_) => {
+                        println!("{script}");
+                    }
+                    Err(error) => {
+                        println!("Error: {error}");
+                    }
+                }
+            }
+
+            if arg.ahk {
+                let script = r#"
+if (Get-Command Get-CimInstance -ErrorAction SilentlyContinue) {
+    (Get-CimInstance Win32_Process | Where-Object {
+        ($_.CommandLine -like '*komorebi.ahk"') -and
+        ($_.Name -in @('AutoHotkey.exe', 'AutoHotkey64.exe', 'AutoHotkey32.exe', 'AutoHotkeyUX.exe'))
+    } | Select-Object -First 1) | ForEach-Object {
+        Stop-Process -Id $_.ProcessId -ErrorAction SilentlyContinue
+    }
+} else {
+    (Get-WmiObject Win32_Process | Where-Object {
+        ($_.CommandLine -like '*komorebi.ahk"') -and
+        ($_.Name -in @('AutoHotkey.exe', 'AutoHotkey64.exe', 'AutoHotkey32.exe', 'AutoHotkeyUX.exe'))
+    } | Select-Object -First 1) | ForEach-Object {
+        Stop-Process -Id $_.ProcessId -ErrorAction SilentlyContinue
+    }
+}
+"#;
+
+                match powershell_script::run(script) {
+                    Ok(_) => {
+                        println!("{script}");
+                    }
+                    Err(error) => {
+                        println!("Error: {error}");
+                    }
+                }
+            }
+        }
         SubCommand::IgnoreRule(arg) => {
             send_message(&SocketMessage::IgnoreRule(arg.identifier, arg.id))?;
         }