linux: add "Open in Ghostty" shortcut for nautilus (#4816)

dist/linux/ghostty_nautilus.py

@@ -0,0 +1,97 @@
+# Adapted from wezterm: https://github.com/wez/wezterm/blob/main/assets/wezterm-nautilus.py
+# original copyright notice:
+#
+# Copyright (C) 2022 Sebastian Wiesner <sebastian@swsnr.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from os.path import isdir
+from gi import require_version
+from gi.repository import Nautilus, GObject, Gio, GLib
+
+
+class OpenInGhosttyAction(GObject.GObject, Nautilus.MenuProvider):
+    def __init__(self):
+        super().__init__()
+        session = Gio.bus_get_sync(Gio.BusType.SESSION, None)
+        self._systemd = None
+        # Check if the this system runs under systemd, per sd_booted(3)
+        if isdir('/run/systemd/system/'):
+            self._systemd = Gio.DBusProxy.new_sync(session,
+                    Gio.DBusProxyFlags.NONE,
+                    None,
+                    "org.freedesktop.systemd1",
+                    "/org/freedesktop/systemd1",
+                    "org.freedesktop.systemd1.Manager", None)
+
+    def _open_terminal(self, path):
+        cmd = ['ghostty', f'--working-directory={path}', '--gtk-single-instance=false']
+        child = Gio.Subprocess.new(cmd, Gio.SubprocessFlags.NONE)
+        if self._systemd:
+            # Move new terminal into a dedicated systemd scope to make systemd
+            # track the terminal separately; in particular this makes systemd
+            # keep a separate CPU and memory account for the terminal which in turn
+            # ensures that oomd doesn't take nautilus down if a process in
+            # ghostty consumes a lot of memory.
+            pid = int(child.get_identifier())
+            props = [("PIDs", GLib.Variant('au', [pid])),
+                ('CollectMode', GLib.Variant('s', 'inactive-or-failed'))]
+            name = 'app-nautilus-com.mitchellh.ghostty-{}.scope'.format(pid)
+            args = GLib.Variant('(ssa(sv)a(sa(sv)))', (name, 'fail', props, []))
+            self._systemd.call_sync('StartTransientUnit', args,
+                    Gio.DBusCallFlags.NO_AUTO_START, 500, None)
+
+    def _menu_item_activated(self, _menu, paths):
+        for path in paths:
+            self._open_terminal(path)
+
+    def _make_item(self, name, paths):
+        item = Nautilus.MenuItem(name=name, label='Open in Ghostty',
+            icon='com.mitchellh.ghostty')
+        item.connect('activate', self._menu_item_activated, paths)
+        return item
+
+    def _paths_to_open(self, files):
+        paths = []
+        for file in files:
+            location = file.get_location() if file.is_directory() else file.get_parent_location()
+            path = location.get_path()
+            if path and path not in paths:
+                paths.append(path)
+        if 10 < len(paths):
+            # Let's not open anything if the user selected a lot of directories,
+            # to avoid accidentally spamming their desktop with dozends of
+            # new windows or tabs.  Ten is a totally arbitrary limit :)
+            return []
+        else:
+            return paths
+
+    def get_file_items(self, *args):
+        # Nautilus 3.0 API passes args (window, files), 4.0 API just passes files
+        files = args[0] if len(args) == 1 else args[1]
+        paths = self._paths_to_open(files)
+        if paths:
+            return [self._make_item(name='GhosttyNautilus::open_in_ghostty', paths=paths)]
+        else:
+            return []
+
+    def get_background_items(self, *args):
+        # Nautilus 3.0 API passes args (window, file), 4.0 API just passes file
+        file = args[0] if len(args) == 1 else args[1]
+        paths = self._paths_to_open([file])
+        if paths:
+            return [self._make_item(name='GhosttyNautilus::open_folder_in_ghostty', paths=paths)]
+        else:
+            return []

src/build/GhosttyResources.zig

@@ -200,6 +200,12 @@ pub fn init(b: *std.Build, cfg: *const Config) !GhosttyResources {
             "share/kio/servicemenus/com.mitchellh.ghostty.desktop",
         ).step);
 
+        // Right click menu action for Nautilus
+        try steps.append(&b.addInstallFile(
+            b.path("dist/linux/ghostty_nautilus.py"),
+            "share/nautilus-python/extensions/com.mitchellh.ghostty.py",
+        ).step);
+
         // Various icons that our application can use, including the icon
         // that will be used for the desktop.
         try steps.append(&b.addInstallFile(