Override a tasks with tasks.local.json

[deRockerTom]

Hi!

I've started to use the extension and I found something that could we useful when merging tasks. Sometimes we just want to override a tasks and we want to keep other ones from the tasks.shared.json

Example

tasks.shared.json

{
  "version": "2.0.0",
  "tasks": [
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
        "runOptions": {
              "runOn": "folderOpen",
          },
    },
    {
        "label": "B",
        "type": "shell",
        "command": "script B",
        "problemMatcher": [],
    },
  ]
}

tasks.local.json

{
  "version": "2.0.0",
  "tasks": [
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
    },
  ]
}

Actual tasks.json with "arrayMerge": "overwrite"

{
  "version": "2.0.0",
  "tasks": [
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
    },
  ]
}

Actual Actual tasks.json with "arrayMerge": "combine"

{
  "version": "2.0.0",
  "tasks": [
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
        "runOptions": {
              "runOn": "folderOpen",
          },
    },
    {
        "label": "B",
        "type": "shell",
        "command": "script B",
        "problemMatcher": [],
    },
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
    },
  ]
}

tasks.json with this functionality

{
  "version": "2.0.0",
  "tasks": [
    {
        "label": "A",
        "type": "shell",
        "command": "script A",
        "problemMatcher": [],
    },
    {
        "label": "B",
        "type": "shell",
        "command": "script B",
        "problemMatcher": [],
    }
  ]
}

[deRockerTom]

After looking a bit at deepMerge, a function like this could maybe be used to merge tasks array :

function arrayMerge(destination, source, _option) {
  const result = source.slice(0);
  destination.forEach((item) => {
    if (!result.find((resultItem) => resultItem.label === item.label)) {
      result.push(item);
    }
  });
  return result;
}