fix(ci): add gitlab ci detection

internal/ci/gitlab_ci.go

@@ -0,0 +1,26 @@
+package ci
+
+import (
+	"fmt"
+)
+
+//GitlabCI struct
+type GitlabCI struct{}
+
+//Detect if on GitlabCI
+func (t GitlabCI) detect(envs map[string]string) (*ProviderConfig, error) {
+
+	if _, exists := envs["GITLAB_CI"]; !exists {
+		return nil, fmt.Errorf("not running on gitlab")
+	}
+
+	return &ProviderConfig{
+		Service:  "gitlab",
+		Name:     "GitLab CI/CD",
+		Commit:   envs["CI_COMMIT_SHA"],
+		Tag:      envs["CI_COMMIT_TAG"],
+		BuildURL: envs["CI_PROJECT_URL"] + "/pipelines/" + envs["CI_PIPELINE_ID"],
+		Branch:   envs["CI_COMMIT_REF_NAME"],
+		IsPR:     false,
+	}, nil
+}