Merge pull request #58 from atomist-skills/feat/detect-environment

feat: add `IsStaging()` function to detect the running environment

util/environment.go

@@ -0,0 +1,17 @@
+package util
+
+import (
+	"os"
+	"strings"
+)
+
+// Return whether the skill runs on staging or not, using the same logic as the TypeScript code.
+// ref: https://github.com/atomist-skills/skill/blob/21696f154efded41f4cb98eb0e6951ab81839b8c/lib/util.ts#L235-L240
+func IsStaging() bool {
+	url, found := os.LookupEnv("ATOMIST_GRAPHQL_ENDPOINT")
+	if !found {
+		url = "https://automation.atomist.com/graphql"
+	}
+
+	return strings.Contains(url, "-stage")
+}