Add version and help command line arguments (#443)

* add maximized command line argument

* fix println when in release mode on windows

src/bridge/ui_commands.rs

@@ -4,7 +4,7 @@ use nvim_rs::Neovim;
 use tokio::process::ChildStdin;
 
 #[cfg(windows)]
-use crate::settings::windows_registry::{
+use crate::windows_utils::{
     register_rightclick_directory, register_rightclick_file, unregister_rightclick,
 };
 

src/main.rs

@@ -10,6 +10,7 @@ mod redraw_scheduler;
 mod renderer;
 mod settings;
 mod window;
+pub mod windows_utils;
 
 #[macro_use]
 extern crate derive_new;
@@ -18,10 +19,7 @@ extern crate rust_embed;
 #[macro_use]
 extern crate lazy_static;
 
-use std::{
+use std::sync::{atomic::AtomicBool, mpsc::channel, Arc};
-    process,
-    sync::{atomic::AtomicBool, mpsc::channel, Arc},
-};
 
 use crossfire::mpsc::unbounded_future;
 
@@ -29,6 +27,7 @@ use bridge::start_bridge;
 use editor::start_editor;
 use renderer::{cursor_renderer::CursorSettings, RendererSettings};
 use window::{create_window, window_geometry, KeyboardSettings, WindowSettings};
+use windows_utils::attach_parent_console;
 
 pub const INITIAL_DIMENSIONS: (u64, u64) = (100, 50);
 
@@ -101,11 +100,22 @@ fn main() {
     //   another frame next frame, or if it can safely skip drawing to save battery and cpu power.
     //   Multiple other parts of the app "queue_next_frame" function to ensure animations continue
     //   properly or updates to the graphics are pushed to the screen.
+    println!("This is a test");
+
+    if std::env::args().any(|arg| arg == "--version" || arg == "-v") {
+        attach_parent_console();
+        println!("Neovide version: {}", env!("CARGO_PKG_VERSION"));
+    }
+
+    if std::env::args().any(|arg| arg == "--help" || arg == "-h") {
+        attach_parent_console();
+        println!("Neovide: {}", env!("CARGO_PKG_DESCRIPTION"));
+    }
 
     if let Err(err) = window_geometry() {
         eprintln!("{}", err);
-        process::exit(1);
+        return;
-    };
+    }
 
     #[cfg(target_os = "macos")]
     {
@@ -118,7 +128,6 @@ fn main() {
                     .arg("--disowned")
                     .spawn()
                     .is_ok());
-                std::process::exit(0);
             } else {
                 eprintln!("error in disowning process, cannot obtain the path for the current executable, continuing without disowning...");
             }

src/settings/mod.rs

@@ -12,7 +12,6 @@ use nvim_rs::Neovim;
 use parking_lot::RwLock;
 pub use rmpv::Value;
 use tokio::process::ChildStdin;
-pub mod windows_registry;
 
 use crate::error_handling::ResultPanicExplanation;
 
@@ -50,14 +49,12 @@ impl Settings {
                 if arg == "--log" {
                     log_to_file = true;
                     false
-                } else if arg == "--version" || arg == "-v" {
-                    println!("Neovide version: {}", env!("CARGO_PKG_VERSION"));
-                    std::process::exit(0);
-                } else if arg == "--help" || arg == "-h" {
-                    println!("neovide: {}", env!("CARGO_PKG_DESCRIPTION"));
-                    std::process::exit(0);
                 } else {
                     !(arg.starts_with("--geometry=")
+                        || arg == "--version"
+                        || arg == "-v"
+                        || arg == "--help"
+                        || arg == "-h"
                         || arg == "--wsl"
                         || arg == "--disowned"
                         || arg == "--multiGrid"

src/windows_utils.rs

@@ -5,6 +5,7 @@ use winapi::{
     shared::minwindef::{DWORD, HKEY, MAX_PATH},
     um::{
         libloaderapi::GetModuleFileNameA,
+        wincon::{AttachConsole, ATTACH_PARENT_PROCESS},
         winnt::{KEY_WRITE, REG_OPTION_NON_VOLATILE, REG_SZ},
         winreg::{RegCloseKey, RegCreateKeyExA, RegDeleteTreeA, RegSetValueExA, HKEY_CLASSES_ROOT},
     },
@@ -212,3 +213,9 @@ pub fn register_rightclick_file() -> bool {
     }
     true
 }
+
+pub fn attach_parent_console() {
+    unsafe {
+        AttachConsole(ATTACH_PARENT_PROCESS);
+    }
+}