Support ignore lists or include/exclude patterns

[fwextensions]

There are likely to be a number of files in a repo that are used only for scaffolding tmplr, so it would be nice if there was a simple way of not copying them to the output directory. It's possible to use remove, but it somehow seems cleaner to not copy them in the first place.

[fwextensions]

Maybe anything with tmplr in the filename could be ignored automatically, so a package.tmplr.json file could be used as a source for copying to an output file, but it would never be copied on its own.

[loreanvictor]

Wouldn't remove: **/*.tmplr.* achieve the same thing? In any case, such files aren't particularly copied over, they are cloned with the rest of the files and would need to be removed in the end.

Another solution, which is a bit more involved, would be to use temp directories. You could clone whatever files into a temp directory and only copy what you need from it. The whole directory would then be removed after the recipe has finished executing.

steps:
  - degit: user/repo
    to:
      eval: '{{ tmpdir.repo }}'
      
  ...

[lintong]

Semi related issue but, I've found that it's overwriting my .git folder when applying this using a local: template. This wouldn't happen if .git could be explicitly or implicitly ignored

[loreanvictor]

yeah I think this is a bug, specifically here in @tmplr/node:

    if (remote.startsWith('local:')) {
      const path = this.absolute(remote.slice(6))
      await cp(path, abs, { recursive: true })
    } else {
      const emitter = tiged(remote, {
        subgroup: options?.subgroup ?? false,
        cache: false,
        force: true
      })

      await emitter.clone(abs)
    }

basically, the code will copy the target folder if it is local, but clone it if it is a repo using tiged, in the latter case .git being skipped and not overriden, but not in the former case. I will try to reproduce this, and then create the bug report on @tmplr/node.

p.s. @lintong this might also be a good first issue if you want to take a shot at it 😉