* first action! (#1)

node_modules/ci-info/index.js

@@ -0,0 +1,66 @@
+'use strict'
+
+var vendors = require('./vendors.json')
+
+var env = process.env
+
+// Used for testing only
+Object.defineProperty(exports, '_vendors', {
+  value: vendors.map(function (v) { return v.constant })
+})
+
+exports.name = null
+exports.isPR = null
+
+vendors.forEach(function (vendor) {
+  var envs = Array.isArray(vendor.env) ? vendor.env : [vendor.env]
+  var isCI = envs.every(function (obj) {
+    return checkEnv(obj)
+  })
+
+  exports[vendor.constant] = isCI
+
+  if (isCI) {
+    exports.name = vendor.name
+
+    switch (typeof vendor.pr) {
+      case 'string':
+        // "pr": "CIRRUS_PR"
+        exports.isPR = !!env[vendor.pr]
+        break
+      case 'object':
+        if ('env' in vendor.pr) {
+          // "pr": { "env": "BUILDKITE_PULL_REQUEST", "ne": "false" }
+          exports.isPR = vendor.pr.env in env && env[vendor.pr.env] !== vendor.pr.ne
+        } else if ('any' in vendor.pr) {
+          // "pr": { "any": ["ghprbPullId", "CHANGE_ID"] }
+          exports.isPR = vendor.pr.any.some(function (key) {
+            return !!env[key]
+          })
+        } else {
+          // "pr": { "DRONE_BUILD_EVENT": "pull_request" }
+          exports.isPR = checkEnv(vendor.pr)
+        }
+        break
+      default:
+        // PR detection not supported for this vendor
+        exports.isPR = null
+    }
+  }
+})
+
+exports.isCI = !!(
+  env.CI || // Travis CI, CircleCI, Cirrus CI, Gitlab CI, Appveyor, CodeShip, dsari
+  env.CONTINUOUS_INTEGRATION || // Travis CI, Cirrus CI
+  env.BUILD_NUMBER || // Jenkins, TeamCity
+  env.RUN_ID || // TaskCluster, dsari
+  exports.name ||
+  false
+)
+
+function checkEnv (obj) {
+  if (typeof obj === 'string') return !!env[obj]
+  return Object.keys(obj).every(function (k) {
+    return env[k] === obj[k]
+  })
+}