Meta: Add script to enforce license headers & run it on Travis

1 files changed, 30 insertions, 0 deletions

diff --git a/Meta/check-license-headers.sh b/Meta/check-license-headers.sh
new file mode 100755
index 0000000000..60cd03151e
--- /dev/null
+++ b/Meta/check-license-headers.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
+cd "$script_path/.." || exit 1
+
+# We simply check if the file starts with:
+# /*
+#  * Copyright
+PATTERN=$'^/\*\n \* Copyright'
+ERRORS=()
+
+while IFS= read -r f; do
+    if [[ ! $(cat "$f") =~ $PATTERN ]]; then
+        ERRORS+=("$f")
+    fi
+done < <(git ls-files -- \
+'*.cpp' \
+'*.h' \
+':!:Tests' \
+':!:Base' \
+':!:Kernel/FileSystem/ext2_fs.h' \
+':!:Libraries/LibC/getopt.cpp' \
+':!:Libraries/LibCore/puff.h' \
+':!:Libraries/LibELF/exec_elf.h' \
+)
+
+if (( ${#ERRORS[@]} )); then
+    echo "Files missing license headers: ${ERRORS[*]}"
+    exit 1
+fi