chore: remove gtk4 dev-dependency bloating builds

Cargo.toml

@@ -15,13 +15,12 @@ btoi = "0.5.0"
 memchr = "2.7.6"
 memmap2 = "0.9"
 thiserror = "2.0"
-tracing = { version = "0.1.41", no-default-features = true }
+tracing = { version = "0.1.41", default-features = false }
 xdg = "3.0"
 
 [dev-dependencies]
 speculoos = "0.13.0"
 linicon = "2.3.0"
-gtk4 = "0.10"
 criterion = "0.7"
 
 [features]

benches/tests.rs

@@ -1,25 +1,7 @@
 use cosmic_freedesktop_icons::lookup;
-use gtk4::{IconLookupFlags, IconTheme, TextDirection};
 use speculoos::prelude::*;
 use std::path::PathBuf;
 
-#[test]
-fn gtk_lookup() {
-    gtk4::init().unwrap();
-    let theme = IconTheme::new();
-
-    let x = theme.lookup_icon(
-        "firefox",
-        &[],
-        24,
-        1,
-        TextDirection::None,
-        IconLookupFlags::empty(),
-    );
-
-    assert!(x.icon_name().is_some())
-}
-
 // Linicon sometimes fails with theme that have unknown parents
 // This test only ensure we are running the correct function in the benchmarks
 // And results are identical.

src/lib.rs

@@ -110,58 +110,6 @@ pub fn list_themes() -> Vec<String> {
     themes
 }
 
-/// Return the default GTK theme if set.
-///
-/// ## Example
-/// ```rust, no_run
-/// use cosmic_freedesktop_icons::default_theme_gtk;
-///
-/// let theme = default_theme_gtk();
-///
-/// assert_eq!(Some("Adwaita"), theme.as_deref());
-/// ```
-pub fn default_theme_gtk() -> Option<String> {
-    // Calling gsettings is the simplest way to retrieve the default icon theme without adding
-    // GTK as a dependency. There seems to be several ways to set the default GTK theme
-    // including a file in XDG_CONFIG_HOME as well as an env var. Gsettings is the most
-    // straightforward method.
-    let gsettings = std::process::Command::new("gsettings")
-        .args(["get", "org.gnome.desktop.interface", "icon-theme"])
-        .output()
-        .ok()?;
-
-    // Only return the theme if it's in the cache.
-    if gsettings.status.success() {
-        let name = String::from_utf8(gsettings.stdout).ok()?;
-        let name = name.trim().trim_matches('\'');
-        THEMES.get(name.as_bytes()).and_then(|themes| {
-            themes.first().and_then(|path| {
-                let file = std::fs::File::open(&path.index)
-                    .and_then(|file| unsafe { Mmap::map(&file) })
-                    .ok()?;
-                let mut reader = std::io::Cursor::new(file.as_ref());
-
-                let mut line = String::new();
-                while let Ok(read) = reader.read_line(&mut line) {
-                    if read == 0 {
-                        break;
-                    }
-
-                    if let Some(name) = line.strip_prefix("Name=") {
-                        return Some(name.trim().to_owned());
-                    }
-
-                    line.clear();
-                }
-
-                None
-            })
-        })
-    } else {
-        None
-    }
-}
-
 /// The lookup builder struct, holding all the lookup query parameters.
 pub struct LookupBuilder<'a> {
     name: &'a str,