Allow excluding subdirectories like node_modules about jscodeshift

[DrewML]

I think this issue can be closed per #107.

[fkling]

In the meantime you could use find like so:

find . -name  *.js -not -path */node_modules/* | xargs jscodeshift

[ssorallen]

👍 Works for me.

[rattrayalex]

Summarizing the fix, to do all files in a repo from the root:

jscodeshift --ignore-config=".gitignore" --ignore-pattern="**/node_modules/**" -t path/to/my_transform.js .

Note that the gitignore support is a bit shoddy because it doesn't use the same glob syntax, so for example node_modules won't match subdirectories (hence its additional inclusion here, with double asterixes).