nixpkgs/pkgs/by-name/en/envision-unwrapped/support-headless-cli.patch

diff --git a/Cargo.lock b/Cargo.lock
index 989abbb..dbfc483 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -26,6 +26,55 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.6.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.93"
@@ -368,6 +417,46 @@ dependencies = [
  "libloading",
 ]
 
+[[package]]
+name = "clap"
+version = "4.5.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3135e7ec2ef7b10c6ed8950f0f792ed96ee093fa088608f1c76e569722700c84"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30582fc632330df2bd26877bde0c1f4470d57c582bbc070376afcd04d8cb4838"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ac6a0c7b1a9e9a5186361f67dfa1b88213572f427fb9ab038efb2bd8c582dab"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+
 [[package]]
 name = "cmake"
 version = "0.1.52"
@@ -377,6 +466,12 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+
 [[package]]
 name = "concurrent-queue"
 version = "2.5.0"
@@ -558,6 +653,7 @@ version = "2.0.1"
 dependencies = [
  "anyhow",
  "ash",
+ "clap",
  "gettext-rs",
  "git2",
  "gtk4",
@@ -1443,6 +1539,12 @@ version = "2.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddc24109865250148c2e0f3d25d4f0f479571723792d3802153c60922a4fb708"
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -2637,6 +2739,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -3045,6 +3153,12 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
 [[package]]
 name = "uuid"
 version = "1.11.0"
diff --git a/Cargo.toml b/Cargo.toml
index 512e892..01e9fb7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,3 +42,4 @@ notify-rust = "4.11.3"
 zbus = { version = "5.1.1", features = ["tokio"] }
 tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
 tracing = "0.1.41"
+clap = { version = "4.5.23", features = ["derive"] }
diff --git a/meson.build b/meson.build
index 4d58596..53991dd 100644
--- a/meson.build
+++ b/meson.build
@@ -77,6 +77,7 @@ meson.add_dist_script(
 
 global_conf = configuration_data()
 global_conf.set('APP_ID', application_id)
+global_conf.set('DESCRIPTION', description)
 global_conf.set('RESOURCES_BASE_PATH', '/' + base_id.replace('.', '/'))
 global_conf.set('PKGDATADIR', pkgdatadir)
 global_conf.set('PROFILE', profile)
diff --git a/src/constants.rs.in b/src/constants.rs.in
index db00776..886e545 100644
--- a/src/constants.rs.in
+++ b/src/constants.rs.in
@@ -3,6 +3,7 @@ use std::path::PathBuf;
 
 pub const APP_NAME: &str = "@PRETTY_NAME@";
 pub const APP_ID: &str = "@APP_ID@";
+pub const DESCRIPTION: &str = "@DESCRIPTION@";
 pub const RESOURCES_BASE_PATH: &str = "@RESOURCES_BASE_PATH@";
 pub const PKG_DATA_DIR: &str = "@PKGDATADIR@";
 pub const RESOURCES: &str = concat!("@PKGDATADIR@", "/resources.gresource");
diff --git a/src/main.rs b/src/main.rs
index 4453911..cd7c212 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,5 @@
 use anyhow::Result;
+use clap::Parser;
 use constants::{resources, APP_ID, APP_NAME, GETTEXT_PACKAGE, LOCALE_DIR, RESOURCES_BASE_PATH};
 use file_builders::{
     active_runtime_json::restore_active_runtime_backup,
@@ -82,6 +83,11 @@ fn main() -> Result<()> {
     gettextrs::bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR).expect("Unable to bind the text domain");
     gettextrs::textdomain(GETTEXT_PACKAGE).expect("Unable to switch to the text domain");
 
+    let opts = CmdLineOpts::parse();
+    if let Some(exit_code) = opts.handle_non_activating_opts() {
+        std::process::exit(exit_code);
+    }
+
     gtk::init()?;
     glib::set_application_name(APP_NAME);
 
@@ -115,10 +121,6 @@ fn main() -> Result<()> {
     let sender = BROKER.sender();
     main_app.connect_command_line(move |this, cmdline| {
         let opts = CmdLineOpts::from_cmdline(cmdline);
-        if let Some(exit_code) = opts.handle_non_activating_opts() {
-            this.quit();
-            return exit_code;
-        }
         this.activate();
         sender.emit(Msg::HandleCommandLine(opts));
         0
diff --git a/src/ui/cmdline_opts.rs b/src/ui/cmdline_opts.rs
index 48458e0..4b224c6 100644
--- a/src/ui/cmdline_opts.rs
+++ b/src/ui/cmdline_opts.rs
@@ -1,4 +1,8 @@
-use crate::config::Config;
+use crate::{
+    config::Config,
+    constants::{APP_NAME, DESCRIPTION, VERSION},
+};
+use clap::Parser;
 use gtk::{
     gio::{
         prelude::{ApplicationCommandLineExt, ApplicationExt},
@@ -8,21 +12,47 @@ use gtk::{
 };
 use tracing::error;
 
-#[derive(Debug, Clone)]
+#[derive(Parser, Debug, Clone)]
+#[command(name = APP_NAME)]
+#[command(version = VERSION)]
+#[command(about = DESCRIPTION, long_about = None)]
 pub struct CmdLineOpts {
+    #[arg(short = 'S', long = "start", help = "Start the XR Service right away")]
     pub start: bool,
+
+    #[arg(
+        short = 'l',
+        long = "list-profiles",
+        help = "List the available profiles"
+    )]
     pub list_profiles: bool,
+
+    #[arg(
+        short = 'p',
+        long = "profile",
+        help = "Switch to the profile indicated by the UUID"
+    )]
     pub profile_uuid: Option<String>,
+
+    #[arg(
+        short = 'd',
+        long = "skip-dependency-check",
+        help = "Skip dependency checks when building profiles"
+    )]
     pub skip_depcheck: bool,
+
+    #[arg(
+        short = 'c',
+        long = "check-deps-for",
+        help = "Prints missing dependencies for given profile id; returns nothing if all dependencies are satisfied"
+    )]
     pub check_dependencies_for: Option<String>,
 }
 
 impl CmdLineOpts {
     const OPT_START: (&'static str, char) = ("start", 'S');
-    const OPT_LIST_PROFILES: (&'static str, char) = ("list-profiles", 'l');
     const OPT_PROFILE: (&'static str, char) = ("profile", 'p');
     const OPT_SKIP_DEPCHECK: (&'static str, char) = ("skip-dependency-check", 'd');
-    const OPT_CHECK_DEPS_FOR: (&'static str, char) = ("check-deps-for", 'c');
 
     pub fn init(app: &impl IsA<Application>) {
         app.add_main_option(
@@ -33,14 +63,6 @@ impl CmdLineOpts {
             "Start the XR Service right away",
             None,
         );
-        app.add_main_option(
-            Self::OPT_LIST_PROFILES.0,
-            glib::Char::try_from(Self::OPT_LIST_PROFILES.1).unwrap(),
-            glib::OptionFlags::IN_MAIN,
-            glib::OptionArg::None,
-            "List the available profiles",
-            None,
-        );
         app.add_main_option(
             Self::OPT_PROFILE.0,
             glib::Char::try_from(Self::OPT_PROFILE.1).unwrap(),
@@ -57,14 +79,6 @@ impl CmdLineOpts {
             "Skip dependency checks when building profiles",
             None,
         );
-        app.add_main_option(
-            Self::OPT_CHECK_DEPS_FOR.0,
-            glib::Char::try_from(Self::OPT_CHECK_DEPS_FOR.1).unwrap(),
-            glib::OptionFlags::IN_MAIN,
-            glib::OptionArg::String,
-            "Prints missing dependencies for given profile id; returns nothing if all dependencies are satisfied",
-            None,
-        );
     }
 
     /// returns an exit code if the application should quit immediately
@@ -100,14 +114,12 @@ impl CmdLineOpts {
         let opts = cmdline.options_dict();
         Self {
             start: opts.contains(Self::OPT_START.0),
-            list_profiles: opts.contains(Self::OPT_LIST_PROFILES.0),
+            list_profiles: false,
             profile_uuid: opts
                 .lookup::<String>(Self::OPT_PROFILE.0)
                 .unwrap_or_default(),
             skip_depcheck: opts.contains(Self::OPT_SKIP_DEPCHECK.0),
-            check_dependencies_for: opts
-                .lookup::<String>(Self::OPT_CHECK_DEPS_FOR.0)
-                .unwrap_or_default(),
+            check_dependencies_for: None,
         }
     }
 }