Match file extensions against blacklist to avoid multiple rebuilds tr…

…iggered by temporary files

src/main.rs

@@ -9,6 +9,8 @@ mod mesh;
 mod model;
 mod window;
 
+use std::collections::HashSet;
+use std::ffi::OsStr;
 use std::{collections::HashMap, sync::mpsc, time::Instant};
 
 use futures::executor::block_on;
@@ -139,27 +141,29 @@ fn main() -> anyhow::Result<()> {
                 notify::event::DataChange::Content,
             )) = event.kind
             {
-                let shape = match model.load(&parameters) {
-                    Ok(shape) => shape,
-                    Err(model::Error::Compile) => {
-                        // It would be better to display an error in the UI,
-                        // where the user can actually see it. Issue:
-                        // https://github.com/hannobraun/fornjot/issues/30
-                        println!("Error compiling model");
-                        return;
+                match HashSet::from([OsStr::new("swp"), OsStr::new("tmp")])
+                    .get(&event.paths[0].extension().unwrap())
+                {
+                    Some(_value) => {
+                        // nop
                     }
-                    Err(err) => {
-                        panic!("Error reloading model: {:?}", err);
+                    None => {
+                        let shape = match model.load(&parameters) {
+                            Ok(shape) => shape,
+                            Err(model::Error::Compile) => {
+                                // It would be better to display an error in the UI,
+                                // where the user can actually see it. Issue:
+                                // https://github.com/hannobraun/fornjot/issues/30
+                                println!("Error compiling model");
+                                return;
+                            }
+                            Err(err) => {
+                                panic!("Error reloading model: {:?}", err);
+                            }
+                        };
+                        watcher_tx.send(shape).unwrap();
                     }
-                };
-
-                // This will panic, if the other end is disconnected, which is
-                // probably the result of a panic on that thread, or the
-                // application is being shut down.
-                //
-                // Either way, not much we can do about it here, except maybe to
-                // provide a better error message in the future.
-                watcher_tx.send(shape).unwrap();
+                }
             }
         },
     )?;