cosmosgen: proto files inside .git are not ignored

[hallazzang]

Please see these two lines:
https://github.com/tendermint/starport/blob/73a5169b0d37eb9ab7dda1c150da04dc8ca1d1c3/starport/pkg/cosmosanalysis/module/module.go#L227
https://github.com/tendermint/starport/blob/73a5169b0d37eb9ab7dda1c150da04dc8ca1d1c3/starport/pkg/protoanalysis/protoanalysis.go#L32

The PatternRecursive function just appends "/**/*.proto" to the input dir.
If the directory contains a git directory(.git), then files that should be ignored are parsed too, causing an error like:

🛠️  Building proto...
cannot build app:

        <input>:1:1: found "0000000000000000000000000000000000000000" but expected [.proto element {comment|option|import|syntax|enum|service|p
ackage|message}]

When I print-debugged, the error above occurred when trying to parse <project directory>/.git/logs/refs/remotes/upstream/....proto.

I think we should ignore files within git directory by skipping those files when parsing or we should use different pattern for finding proto files.

[ilgooz]

I second this! 💯

We should add an exclude pattern for .git. PatternRecursive right now is passed to mattn/go-zglob under the hood but I'm not sure if this pkg support exlude patterns. If not, we may need to change that pkg with something more capable.

[Pantani]

@ilgooz, I think it's better we can exclude all hidden folders starting with .. What do you think?

[ilgooz]

Yep, totally makes sense. 👍