chore: add lint check for large files

Signed-off-by: Christopher Phillips <christopher.phillips@anchore.com>

.github/scripts/check_binary_fixture_size.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Check if a directory is provided as an argument
+if [ $# -eq 0 ]; then
+  echo "Usage: $0 <directory>"
+  exit 1
+fi
+
+directory="$1"
+
+# Check if the directory exists
+if [ ! -d "$directory" ]; then
+  echo "Directory not found: $directory"
+  exit 1
+fi
+
+# Use find to locate all files in the directory and its subdirectories
+found_large_files=0
+while IFS= read -r -d '' file; do
+  # Check if the file size is greater than 100 bytes
+  if [ $(wc -c < "$file") -gt 100 ]; then
+    echo "File $file is greater than 100 bytes."
+    found_large_files=1
+  fi
+done < <(find "$directory" -type f -print0)
+
+# Check if any large files were found
+if [ "$found_large_files" -eq 1 ]; then
+  echo "Script failed: Some files are greater than 100 bytes."
+  exit 1
+else
+  echo "All files in $directory and its subdirectories are 100 bytes or smaller. Script passed."
+  exit 0
+fi
+

Taskfile.yaml

@@ -54,6 +54,7 @@ tasks:
       - task: check-licenses
       - task: lint
       - task: check-json-schema-drift
+      - task: check-binary-fixture-size
 
   test:
     desc: Run all levels of test
@@ -169,6 +170,11 @@ tasks:
     cmds:
       - .github/scripts/json-schema-drift-check.sh
 
+  check-binary-fixture-size:
+    desc: Ensure that the binary test fixtures are not too large
+    cmds:
+      - .github/scripts/check_binary_fixture_size.sh syft/pkg/cataloger/binary/test-fixtures/classifiers/positive
+
 
   ## Testing tasks #################################