1 files changed, 58 insertions, 0 deletions

diff --git a/cli/internal/ci/ci.go b/cli/internal/ci/ci.go
new file mode 100644
index 0000000..a22ad78
--- /dev/null
+++ b/cli/internal/ci/ci.go
@@ -0,0 +1,58 @@
+// Package ci is a simple utility to check if a program is being executed in common CI/CD/PaaS vendors.
+// This is a partial port of https://github.com/watson/ci-info
+package ci
+
+import "os"
+
+var isCI = os.Getenv("BUILD_ID") != "" || os.Getenv("BUILD_NUMBER") != "" || os.Getenv("CI") != "" || os.Getenv("CI_APP_ID") != "" || os.Getenv("CI_BUILD_ID") != "" || os.Getenv("CI_BUILD_NUMBER") != "" || os.Getenv("CI_NAME") != "" || os.Getenv("CONTINUOUS_INTEGRATION") != "" || os.Getenv("RUN_ID") != "" || os.Getenv("TEAMCITY_VERSION") != "" || false
+
+// IsCi returns true if the program is executing in a CI/CD environment
+func IsCi() bool {
+	return isCI
+}
+
+// Name returns the name of the CI vendor
+func Name() string {
+	return Info().Name
+}
+
+// Constant returns the name of the CI vendor as a constant
+func Constant() string {
+	return Info().Constant
+}
+
+// Info returns information about a CI vendor
+func Info() Vendor {
+	// check both the env var key and value
+	for _, env := range Vendors {
+		if env.EvalEnv != nil {
+			for name, value := range env.EvalEnv {
+				if os.Getenv(name) == value {
+					return env
+				}
+			}
+		} else {
+			// check for any of the listed env var keys, with any value
+			if env.Env.Any != nil && len(env.Env.Any) > 0 {
+				for _, envVar := range env.Env.Any {
+					if os.Getenv(envVar) != "" {
+						return env
+					}
+				}
+				// check for all of the listed env var keys, with any value
+			} else if env.Env.All != nil && len(env.Env.All) > 0 {
+				all := true
+				for _, envVar := range env.Env.All {
+					if os.Getenv(envVar) == "" {
+						all = false
+						break
+					}
+				}
+				if all {
+					return env
+				}
+			}
+		}
+	}
+	return Vendor{}
+}