Function hasAbsoluteRoutes

http/codegen/openapi/v2/builder.go:206–238

hasAbsoluteRoutes returns true if any endpoint exposed by the API uses an absolute route of if the API has file servers. This is needed as OpenAPI does not support exceptions to the base path so if the API has any absolute route the base path must be "/" and all routes must be absolutes.

(root *expr.RootExpr)

// not support exceptions to the base path so if the API has any absolute route
// the base path must be "/" and all routes must be absolutes.
func hasAbsoluteRoutes(root *expr.RootExpr) bool {
	hasAbsoluteRoutes := false
	for _, res := range root.API.HTTP.Services {
		if !openapi.MustGenerate(res.Meta) || !openapi.MustGenerate(res.ServiceExpr.Meta) {
			continue
		}
		for _, fs := range res.FileServers {
			if !openapi.MustGenerate(fs.Meta) || !openapi.MustGenerate(fs.Service.Meta) {
				continue
			}
			hasAbsoluteRoutes = true
			break
		}
		for _, a := range res.HTTPEndpoints {
			if !openapi.MustGenerate(a.Meta) || !openapi.MustGenerate(a.MethodExpr.Meta) {
				continue
			}
			for _, ro := range a.Routes {
				if ro.IsAbsolute() {
					hasAbsoluteRoutes = true
					break
				}
			}
			if hasAbsoluteRoutes {
				break
			}
		}
		if hasAbsoluteRoutes {
			break
		}
	}
	return hasAbsoluteRoutes
}

func summaryFromExpr(name string, e *expr.HTTPEndpointExpr, meta expr.MetaExpr) string {
	for n, mdata := range e.Meta {