[BUG] CLI crashes with TypeError when AsyncAPI document file is empty

[sahillllllllll-bit]

Describe the bug.

When running the AsyncAPI CLI with an empty AsyncAPI file, the CLI crashes with a raw JavaScript TypeError instead of showing a user-friendly validation error.

Expected behavior

The CLI should detect that the AsyncAPI file is empty and return a clear error message, such as:

The provided AsyncAPI file is empty or invalid.

Screenshots

How to Reproduce

1. Create an empty AsyncAPI file:

touch empty.yaml

2. Create a minimal valid generator template:

mkdir -p test-template/template
cat > test-template/package.json <<EOF
{
  "name": "test-template",
  "version": "1.0.0",
  "generator": ">=2.0.0"
}
EOF
echo "test" > test-template/template/test.txt

3. Run the AsyncAPI CLI:

asyncapi generate fromTemplate empty.yaml ./test-template -o out

🖥️ Device Information [optional]

• Operating System (OS): Windows(WSL)
• Browser:
• Browser Version:

👀 Have you checked for similar open issues?

• I checked and didn't find similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue ?

yes

[github-actions]

Welcome to AsyncAPI. Thanks a lot for reporting your first issue. Please check out our contributors guide and the instructions about a basic recommended setup useful for opening a pull request.
Keep in mind there are also other channels you can use to interact with AsyncAPI community. For more details check out this issue.

[sahillllllllll-bit]

hey @Shurtu-gal please have a look at this . Happy to raise PR if you agree.

[Shurtu-gal]

Please create a PR.

[sahillllllllll-bit]

Please create a PR.

Hi, I’ve submitted PR #1996 for your review.