Trim trailing '/' from basePathWithoutHost (#967)

* Trim trailing '/' from basePathWithoutHost

Given that the normal use is {{{basePathWithoutHost}}}{{{path}}}.

* Trim trailing '/' from contextPath

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultGenerator.java

@@ -193,15 +193,9 @@ public class DefaultGenerator extends AbstractGenerator implements Generator {
         }
 
         URL url = URLPathUtils.getServerURL(openAPI);
-        contextPath = config.escapeText(url.getPath());
-        basePathWithoutHost = contextPath; // for backward compatibility
-        basePath = config.escapeText(URLPathUtils.getHost(openAPI));
-        if ("/".equals(basePath.substring(basePath.length() - 1))) {
-            // remove trailing "/"
-            // https://host.example.com/ => https://host.example.com
-            basePath = basePath.substring(0, basePath.length() - 1);
-        }
-
+        contextPath = config.escapeText(url.getPath()).replaceAll("/$", ""); // for backward compatibility
+        basePathWithoutHost = contextPath;
+        basePath = config.escapeText(URLPathUtils.getHost(openAPI)).replaceAll("/$", "");
     }
 
     private void configureOpenAPIInfo() {

samples/server/petstore/rust-server/output/rust-server-test/src/client/mod.rs

@@ -249,7 +249,7 @@ impl<F, C> Api<C> for Client<F> where
 
 
         let uri = format!(
-            "{}//dummy",
+            "{}/dummy",
             self.base_path
         );
 

samples/server/petstore/rust-server/output/rust-server-test/src/lib.rs

@@ -35,7 +35,7 @@ mod mimetypes;
 
 pub use swagger::{ApiError, ContextWrapper};
 
-pub const BASE_PATH: &'static str = "/";
+pub const BASE_PATH: &'static str = "";
 pub const API_VERSION: &'static str = "1.0.0";
 
 

samples/server/petstore/rust-server/output/rust-server-test/src/server/mod.rs

@@ -51,7 +51,7 @@ mod paths {
 
     lazy_static! {
         pub static ref GLOBAL_REGEX_SET: regex::RegexSet = regex::RegexSet::new(&[
-            r"^//dummy$"
+            r"^/dummy$"
         ]).unwrap();
     }
     pub static ID_DUMMY: usize = 0;