Changes to --resources argument

[cbandy]

I would like to generate docs from a single YAML file. When I tried it, I was surprised that I got neither an error nor any docs.

I'm not sure if the lack of error is intentional, so this is broken into two commits. I'm most interested in the first, which allows the argument to --resources to be a single file.

Before:

$ go run . --resources /does/not/exist --output /dev/stdout ; echo $?
# API Reference

Packages:
0

$ go run . --resources ./example/crds/example.yaml --output /dev/stdout ; echo $?
# API Reference

Packages:
0

After:

$ go run . --resources /does/not/exist --output /dev/stdout ; echo $?
stat /does/not/exist: no such file or directory
exit status 1
1

$ go run . --resources ./example/crds/example.yaml --output /dev/stdout ; echo $?
# API Reference

Packages:

- [project.io/v1alpha1](#projectiov1alpha1)
…
</table>
0

[roee88]

Thank you!

Can you please also update the help string to reflect that it can now be either a directory or a file?

crdoc/main.go

Line 86 in 519c371

cmd.Flags().StringP(resourcesOption, "r", "", "Path to directory with CustomResourceDefinition YAML files (required)")

[cbandy]

Amended the first commit.