Proposal: additive configure

[cccntu]

• nbautoexport version: 0.2.1
• Python version: 3.9.1
• Operating System: Ubuntu 18.04.1

Description

In the clean doc: https://nbautoexport.drivendata.org/cleaning/
I tried to add a folder to exclude, and it overwrote my old non-default export_formats config.
I think it would be more natural to not have everything overwritten.

What I Did

❯ cat notebooks/.nbautoexport
{
  "export_formats": [
    "script",
    "html"
  ],
  "organize_by": "extension",
}
❯ nbautoexport configure notebooks/ \
    --clean-exclude 'report/*'
Detected existing autoexport configuration at notebooks/.nbautoexport. If you wish to overwrite, use the --overwrite flag.
❯ nbautoexport configure notebooks/ --overwrite \
    --clean-exclude 'report/*'
❯ cat notebooks/.nbautoexport
{
  "export_formats": [
    "script"
  ],
  "organize_by": "extension",
  "clean": {
    "exclude": [
      "report/*"
    ]
  }
}

[jayqi]

There are two ways I see this going:

---

1. Always replace a configured option.

{
  "export_formats": [
    "script"
  ],
  "organize_by": "extension",
}

nbautoexport configure notebooks/ -f html

would give you

{
  "export_formats": [
    "html"
  ],
  "organize_by": "extension",
}

---

2. Lists are additive

{
  "export_formats": [
    "script"
  ],
  "organize_by": "extension",
}

nbautoexport configure notebooks/ -f html

would give you

{
  "export_formats": [
    "script",
    "html"
  ],
  "organize_by": "extension",
}

---

Not sure which kind of behavior is more intuitive and easy-to-use.

As for the old behavior of replacing a file entirely, we could always tie that to the --overwrite flag or a new flag like --replace or something.

[cccntu]

Update: I no longer think there is a need for this functionality. I just directly edit the config file like other dotfiles.

I think we just need to prompt user to optionally edit the config file themselves when existing file is detected. Maybe add documentation for the syntax.