fix(linux): open folders from the desktop

CHANGELOG.md

@@ -8,6 +8,9 @@ separately in [CHANGELOG-DEPS.md](CHANGELOG-DEPS.md).
 
 ## Unreleased
 
+- **Linux desktops can open folders in Ferail.** The desktop entry handles
+  directory paths through `--navigate`, which now also applies to normal windows.
+
 - **Going up to a parent folder selects the folder you came from and scrolls
   it into view, whichever way you go up.** Backspace and Back already did
   this; clicking a breadcrumb segment, a folder in the sidebar tree, or typing

crates/ferail-gpui/resources/linux/ferail.desktop

@@ -6,17 +6,13 @@
 # to "ferail" (see ferail-gpui/src/lib.rs base_window_options). Rename
 # this file and the taskbar icon/grouping silently breaks.
 #
-# No %F/%U field code on Exec yet: the binary treats a bare positional
-# argument as an unknown subcommand (src/main.rs handle_cli_subcommand),
-# so it cannot open a directory passed by the desktop shell. Add
-# MimeType=inode/directory; and Exec=ferail %U once a path argument is
-# supported.
 [Desktop Entry]
 Type=Application
 Name=Ferail
 GenericName=File Manager
 Comment=Fast file manager with disk usage, previews, and dual-pane browsing
-Exec=ferail
+Exec=ferail --navigate %f
+MimeType=inode/directory;
 Icon=ferail
 Terminal=false
 Categories=System;FileTools;FileManager;

crates/ferail-gpui/src/boot.rs

@@ -165,6 +165,11 @@ pub fn run_gui(args: screenshot::Args) {
     let theme_mode = args.theme;
     let settings_page = args.settings;
     let initial_archive = args.archive;
+    let initial_directory = args
+        .navigate
+        .last()
+        .cloned()
+        .map(crate::shell::canonicalize_for_identity);
 
     app.run(move |cx| {
         // Arm the Prime Directive's debug-build tripwire: from here on,
@@ -467,7 +472,12 @@ pub fn run_gui(args: screenshot::Args) {
             let initial_size = (width, height);
             cx.spawn(async move |cx| {
                 cx.update(|cx| {
-                    open_shell_window_sized(cx, Some(initial_size), initial_archive);
+                    open_shell_window_sized(
+                        cx,
+                        Some(initial_size),
+                        initial_archive,
+                        initial_directory,
+                    );
                 });
             })
             .detach();
@@ -496,7 +506,7 @@ fn settings_window_opts(width: f32, height: f32) -> WindowOptions {
 /// route through this so there's one place that owns window options
 /// and process-state hookup.
 pub fn open_shell_window(cx: &mut App) {
-    open_shell_window_sized(cx, None, None);
+    open_shell_window_sized(cx, None, None, None);
 }
 
 #[cfg(feature = "screenshot-harness")]
@@ -636,6 +646,7 @@ fn open_shell_window_sized(
     cx: &mut App,
     size_hint: Option<(f32, f32)>,
     initial_archive: Option<std::path::PathBuf>,
+    initial_directory: Option<std::path::PathBuf>,
 ) {
     let (w, h) = size_hint.unwrap_or((1180.0, 760.0));
     let opts = WindowOptions {
@@ -654,6 +665,9 @@ fn open_shell_window_sized(
             install_dev_window_callback_cleanup(window, cx);
             let process = crate::process_state::process_state(cx);
             let view = cx.new(|cx| Shell::new(process, window, cx));
+            if let Some(directory) = initial_directory.clone() {
+                view.update(cx, |shell, cx| shell.navigate(directory, cx));
+            }
             if let Some(archive) = initial_archive.clone() {
                 view.update(cx, |shell, cx| {
                     shell.open_archive_path(archive, window, cx);