diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b8a8806..4310e81 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,8 +2,13 @@ name: Test, build and release binary
 on:
   push:
     branches:
-      - '*'
+      - main
   pull_request: null
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check:
     runs-on: ubuntu-latest
diff --git a/src/main.rs b/src/main.rs
index a002bbc..0e1e8ee 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,13 +10,13 @@ const CHUNK_SIZE: usize = 1024 * 100;
 
 fn main() -> Result<()> {
     let args: Vec<String> = env::args().collect();
-    let tty = atty::is(atty::Stream::Stdin);
+    let tty = !atty::is(atty::Stream::Stdin);
     if let Some(arg) = args.get(1) {
         match tty {
             //Decode + Decompress + Save to file
-            false => from_raw(arg)?,
+            true => from_raw(arg)?,
             //Read from path + Compress + Encode
-            true => to_raw(arg)?,
+            false => to_raw(arg)?,
         };
     } else {
         println!(