1 files changed, 19 insertions, 9 deletions
diff --git a/src/main.rs b/src/main.rs
index 8727003..53a1301 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,14 +5,20 @@ use std::{
 };
 
 use clap::Parser;
-use color_eyre::eyre::{bail, eyre, Context, Result};
+use color_eyre::{
+    eyre::{bail, eyre, Context, Result},
+    Report,
+};
 use hittekaart::{
     gpx::{self, Compression},
     renderer,
 };
 use indicatif::{MultiProgress, ProgressBar, ProgressDrawTarget, ProgressStyle};
 use is_terminal::IsTerminal;
-use rayon::ThreadPoolBuilder;
+use rayon::{
+    iter::{IndexedParallelIterator, IntoParallelRefIterator, ParallelIterator},
+    ThreadPoolBuilder,
+};
 
 #[derive(Parser, Debug, Clone)]
 #[command(author, version, about)]
@@ -69,13 +75,17 @@ fn main() -> Result<()> {
     bar.set_prefix("Reading GPX files");
 
     let mut tracks = Vec::new();
-    for file in &args.files {
-        let compression = Compression::suggest_from_path(file)
-            .ok_or_else(|| eyre!("Could not determine format for {file:?}"))?;
-        let data = gpx::extract_from_file(file, compression)?;
-        tracks.push(data);
-        bar.inc(1);
-    }
+    args.files
+        .par_iter()
+        .map(|file| {
+            let compression = Compression::suggest_from_path(file)
+                .ok_or_else(|| eyre!("Could not determine format for {file:?}"))?;
+            let data = gpx::extract_from_file(file, compression)?;
+            bar.inc(1);
+            Ok::<_, Report>(data)
+        })
+        .collect_into_vec(&mut tracks);
+    let tracks = tracks.into_iter().collect::<Result<Vec<_>>>()?;
     bar.finish();
 
     ensure_output_directory(&args.output_directory)?;