feat: add Vela CI

Author: sibiraj-s

README.md

@@ -76,6 +76,7 @@ Officially supported CI servers:
 | [TaskCluster](http://docs.taskcluster.net)                                      | `ci.TASKCLUSTER`        | 🚫   |
 | [TeamCity](https://www.jetbrains.com/teamcity/) by JetBrains                    | `ci.TEAMCITY`           | 🚫   |
 | [Travis CI](http://travis-ci.org)                                               | `ci.TRAVIS`             | ✅   |
+| [Vela](https://go-vela.github.io/docs/)                                         | `ci.VELA`               | ✅   |
 | [Vercel](https://vercel.com/)                                                   | `ci.VERCEL`             | ✅   |
 | [Visual Studio App Center](https://appcenter.ms/)                               | `ci.APPCENTER`          | 🚫   |
 | [Woodpecker](https://woodpecker-ci.org/)                                        | `ci.WOODPECKER`         | ✅   |

index.d.ts

@@ -69,6 +69,7 @@ export const STRIDER: boolean;
 export const TASKCLUSTER: boolean;
 export const TEAMCITY: boolean;
 export const TRAVIS: boolean;
+export const VELA: boolean;
 export const VERCEL: boolean;
 export const APPCENTER: boolean;
 export const WOODPECKER: boolean;

test.js

@@ -970,6 +970,44 @@ test('Agola CI - PR', function (t) {
   t.end()
 })
 
+test('Vela', function (t) {
+  process.env.VELA = 'true'
+  process.env.VELA_PULL_REQUEST = '2'
+
+  clearModule('./')
+  const ci = require('./')
+
+  t.equal(ci.isCI, true)
+  t.equal(ci.isPR, false)
+  t.equal(ci.name, 'Vela')
+  t.equal(ci.VELA, true)
+  assertVendorConstants('VELA', ci, t)
+
+  delete process.env.VELA
+  delete process.env.VELA_PULL_REQUEST
+
+  t.end()
+})
+
+test('Vela - PR', function (t) {
+  process.env.VELA = 'true'
+  process.env.VELA_PULL_REQUEST = '1'
+
+  clearModule('./')
+  const ci = require('./')
+
+  t.equal(ci.isCI, true)
+  t.equal(ci.isPR, true)
+  t.equal(ci.name, 'Vela')
+  t.equal(ci.VELA, true)
+  assertVendorConstants('VELA', ci, t)
+
+  delete process.env.VELA
+  delete process.env.VELA_PULL_REQUEST
+
+  t.end()
+})
+
 function assertVendorConstants (expect, ci, t) {
   ci._vendors.forEach(function (constant) {
     let bool = constant === expect

vendors.json

@@ -284,6 +284,14 @@
       "ne": "false"
     }
   },
+  {
+    "name": "Vela",
+    "constant": "VELA",
+    "env": "VELA",
+    "pr": {
+      "VELA_PULL_REQUEST": "1"
+    }
+  },
   {
     "name": "Vercel",
     "constant": "VERCEL",