[TRI-712] Create an ESLint plugin to make sure task keys are unique inside a Job run function

[ericallam]

Accidentally using duplicate task keys inside an individual job can lead to unexpected results (see our docs for more info: https://trigger.dev/docs/documentation/concepts/resumability). It would be great to create an ESLint plugin that can detect this.

_TRI-712

[ericallam]

/bounty $100

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Attempt	Started (GMT+0)	Solution
🔴 @Ashutosh-Bhadauriya	Jul 26, 2023, 4:49:50 PM	WIP
🔴 @tobihans	Jul 26, 2023, 4:50:39 PM	WIP
🟢 @Anshul1811	Jul 26, 2023, 6:39:55 PM	WIP
🟡 @ologbonowiwi	Aug 12, 2023, 2:59:07 AM	#324

[Ashutosh-Bhadauriya]

/attempt #206

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Note: The user @Ashutosh-Bhadauriya is already attempting to complete issue #206 and claim the bounty. If you attempt to complete the same issue, there is a chance that @Ashutosh-Bhadauriya will complete the issue first, and be awarded the bounty. We recommend discussing with @Ashutosh-Bhadauriya and potentially collaborating on the same solution versus creating an alternate solution.

[Anshul1811]

/attempt #206

[Ashutosh-Bhadauriya]

@ericallam just to confirm. I should be doing this inside config-packages/eslint-config-custom, right?

[b4s36t4]

@ericallam could you please verify below test-cases should works for the plugin-rule or maybe I'm missing any rule.

Test Cases

/**
 * @fileoverview No Unique key
 * @author no-unique-key
 */
"use strict";

//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

const rule = require("../../../lib/rules/no-unique-key"),
  RuleTester = require("eslint").RuleTester;

//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------

const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 2018 } });
ruleTester.run("no-unique-key", rule, {
  valid: [
    // give me some code that won't trigger a warning
    {
      code: `
      new Job(client, {
        id: "event-1",
        name: "Run when the foo.bar event happens",
        version: "0.0.1",
        trigger: eventTrigger({
          name: "foo.bar",
        }),
        run: async (payload, io, ctx) => {
          await io.slack.postMessage("⭐️ New Star", {
            channel: "C04GWUTDC3W",
            text: 'hello'
          });
        },
      });
      `,
    },
    {
      code: `
      const runJob  = async (payload, io, ctx) => {
        await io.slack.postMessage("⭐️ New Star", {
          channel: "C04GWUTDC3W",
          text: 'hello'
        });
      }
      new Job(client, {
        id: "event-1",
        name: "Run when the foo.bar event happens",
        version: "0.0.1",
        trigger: eventTrigger({
          name: "foo.bar",
        }),
        run: runJob
      });
      `,
    },
  ],

  invalid: [
    {
      code: `
      new Job(client, {
        id: "event-1",
        name: "Run when the foo.bar event happens",
        version: "0.0.1",
        trigger: eventTrigger({
          name: "foo.bar",
        }),
        run: async (payload, io, ctx) => {
          await io.slack.postMessage("⭐️ New Star", {
            channel: "C04GWUTDC3W",
            text: 'hello'
          });
          await io.slack.postMessage("⭐️ New Star", {
            channel: "C04GWUTDC3W",
            text: 'hello'
          });
        },
      });
      `,
      errors: [
        {
          message:
            "'⭐️ New Star' key already exists please use different keys to execute the job",
        },
      ],
    },
  ],
});

[ologbonowiwi]

/attempt #206

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[ologbonowiwi]

There's anything missing to close this @ericallam @matt-aitken?

[ologbonowiwi]

Can we close it, guys? @matt-aitken @ericallam