feat: add support for additional MIME types in image processing

crates/bin/src/lib.rs

@@ -4,6 +4,7 @@ use tracing::{debug, info, trace};
 pub fn process_once(
     provider: &dyn ClipboardProvider,
     opts: &ShrinkOptions,
+    extra_mimes: &[String],
     last_hash: &mut Option<[u8; 32]>,
 ) -> Result<(), Box<dyn std::error::Error>> {
     let (data, mime_type) = match provider.capture() {
@@ -38,10 +39,15 @@ pub fn process_once(
         result.mime_type
     );
 
-    provider.distribute(&[(&result.data, result.mime_type.as_str())])?;
+    // Primary MIME type first, then any aliases the user wants to lie about.
+    let mut items: Vec<(&[u8], &str)> = vec![(&result.data, result.mime_type.as_str())];
+    for alias in extra_mimes {
+        if alias != &result.mime_type {
+            items.push((&result.data, alias.as_str()));
+        }
+    }
+    provider.distribute(&items)?;
 
-    // Track hash of OUTPUT. After distributing webp-only, next capture will
-    // find image/webp (from our subprocess) → same hash → skip. No loop.
     *last_hash = Some(image_hash(&result.data));
     Ok(())
 }

crates/bin/src/main.rs

@@ -17,6 +17,7 @@ async fn main() {
     };
 
     let poll = Duration::from_millis(cfg.general.poll_ms);
+    let extra_mimes = cfg.general.extra_mimes.clone();
     let opts = ShrinkOptions {
         quality: cfg.general.quality,
         target_format: cfg.general.format.into(),
@@ -27,7 +28,7 @@ async fn main() {
 
     info!("k-shrink daemon started (poll={}ms)", cfg.general.poll_ms);
     loop {
-        if let Err(e) = k_shrink::process_once(&backend, &opts, &mut last_hash) {
+        if let Err(e) = k_shrink::process_once(&backend, &opts, &extra_mimes, &mut last_hash) {
             error!("error: {e}");
         }
         tokio::time::sleep(poll).await;