Provide a config schema for categorization of labels

[kenperkins]

I've been thinking about my label use cases, and I find that on most of my repositories, I've gotten into the habit of a label schema if you will. Things like type/xxxx or area/yyyy, status/zzz, and so on.

I'm trying to think of a forwards compatible mode where you could adorn a label with a property, and if that property matches an optional input file schema, would get color and prefix from the input schema.

Here's an off-the-cuff example:

{
  "config": {
    "delimiter": "/",
    "allow-added-labels": false,
    "categories": [
      {
        "name": "type",
        "delimiter": "@",
        "color": "aaccff",
        "aliases": [ "type:", "type=", "type/" ]
      },
      {
        "name": "status",
        "color": "3377aa",
        "aliases": [ "status:" ]
      }
    ]
  }  
}

Then, in my label file, we'd have a new optional property called category:

[
	{
		"name": "bug",
                "category": "type",
		"aliases": [
			"bug"
		]
	},
	{
		"name": "breaking",
		"category": "type",
		"aliases": [
			"breaking",
			"breaking-change"
		]
	},
	{
		"name": "wontfix",
                "category": "status",
		"aliases": [
			"wont-fix",
			"won't fix",
			"wont fix"
		]
	}
]

The merged labels would look like this:

[
	{
		"name": "type@bug",
                "color": "aaccff",
		"aliases": [
			"bug",
			"type:bug",
			"type/bug",
			"type=bug"
		]
	},
	{
		"name": "type@breaking",
		"color": "aaccff",
		"aliases": [
			"breaking",
			"breaking-change",
			"type:breaking",
			"type:breaking-change",
			"type/breaking",
			"type/breaking-change",
			"type=breaking",
			"type=breaking-change",
		]
	},
	{
		"name": "status/wontfix",
                "color": "3377aa",
		"aliases": [
			"wont-fix",
			"won't fix",
			"wont fix"
			"status:wont-fix",
			"status:won't fix",
			"status:wont fix"
		]
	}
]

I would perhaps call this like so:

$ github-label-sync --config myconfig.json --labels source1.json --labels source2.json
Loading myconfig.json
  allow-added-labels: false
  delimiter: "/"

Thoughts?