Delete blob and add CI check (#867)

* Delete blob and add CI check

* fix

* shellcheck

.github/workflows/build_and_test.yml

@@ -30,6 +30,11 @@ jobs:
           crate: mdbook-linkcheck
       - uses: actions/checkout@v3
       - uses: Swatinem/rust-cache@v2
+      - name: Install mimetype
+      - run: sudo apt-get install libfile-mimeinfo-perl
+      - name: Check for binary blobs
+        if: runner.os == 'Linux'
+        run: ./scripts/check_for_blobs.sh
       - name: Build libafl debug
         run: cargo build -p libafl
       - name: Build the book

scripts/check_for_blobs.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+blobs=$(find . -type f -exec sh -c '
+  for f; do 
+    mimetype -b "$f" | grep -Eq "application/(x-object|x-executable)" && 
+    printf "%s\n" "$f"
+  done
+' sh {} +)
+
+if [ -z "$blobs" ]
+then
+  echo "No object or executable files in the root directory"
+  exit 0
+else
+  echo "Hey! There are some object or executable file in the root directory!"
+  echo "$blobs"
+  echo "Aborting."
+  exit 1
+fi