Exclude option support

[zealic]

Need "--exclude" option to ignore some files:

Example:

gomplate --input-dir=./data \
  --exclude=".*"     \ # Exclude file or directory with dot prefix
  --exclude="*.xml"  \ # Recursive exclude xml file
  --exclude="logs"   \ # Exclude logs file or directory
  --output-dir=./output

Refernece:

• https://golang.org/pkg/path/filepath/#Glob

[hairyhenderson]

@zealic thanks for logging this! Sounds like a reasonable feature when processing a directory with many files.

[zealic]

I will implement this feature.
Maybe '.gomplateignore' is better idea.

[hairyhenderson]

@zealic yeah - .gomplateignore would be great - I'm assuming you're meaning something similar to the .gitignore file?

[zealic]

@hairyhenderson Yes, it is.

Default use '--input-dir' root .gomplateignore file, sub folder can be inherit.
Finally, '--exclude' option add additional ignore files.

[hairyhenderson]

@zealic That sounds good. I'd like the .gomplateignore and --exclude features to be submitted as separate PRs, for clarity

[keydrevolta]

@zealic this may help you tsuru/tsuru-client#25

[Gman98ish]

Hi, all 👋
I've not done the whole thing, just found a potential solution for the command line flag, potentially provides a starting point for the .gomplateignore

[hairyhenderson]

--exclude is now available, so I'm going to close this issue. Feel free to enhance with further PRs though! 🙂