[Style][Go] standardize the format of mustache (tiny change) (#17363)

* fix: change indent style to tab in the mustache to generate Go code

* docs: standardize the language names for code blocks

* docs: change indent style to tab in the code blocks

* update: regenerate samples

* `./bin/generate-samples.sh ./bin/configs/*.yaml`

modules/openapi-generator/src/main/resources/go/README.mustache

@@ -21,7 +21,7 @@ For more information, please visit [{{{infoUrl}}}]({{{infoUrl}}})
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 {{#hasOAuthMethods}}
 go get golang.org/x/oauth2
@@ -31,13 +31,13 @@ go get golang.org/x/net/context
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import {{packageName}} "{{gitHost}}/{{gitUserId}}/{{gitRepoId}}{{#isGoSubmodule}}/{{packageName}}{{/isGoSubmodule}}"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -49,7 +49,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `{{packageName}}.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), {{packageName}}.ContextServerIndex, 1)
 ```
 
@@ -57,7 +57,7 @@ ctx := context.WithValue(context.Background(), {{packageName}}.ContextServerInde
 
 Templated server URL is formatted using default variables from configuration or from context value `{{packageName}}.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), {{packageName}}.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -71,7 +71,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `{{packageName}}.ContextOperationServerIndices` and `{{packageName}}.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), {{packageName}}.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -112,7 +112,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		{{packageName}}.ContextAPIKeys,
@@ -130,7 +130,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), {{packageName}}.ContextAccessToken, "BEARER_TOKEN_STRING")
 r, err := client.Service.Operation(auth, args)
 ```
@@ -141,7 +141,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), {{packageName}}.ContextBasicAuth, {{packageName}}.BasicAuth{
 	UserName: "username",
 	Password: "password",
@@ -155,7 +155,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 	authConfig := {{packageName}}.HttpSignatureAuth{
 		KeyId:                "my-key-id",
 		PrivateKeyPath:       "rsa.pem",
@@ -193,14 +193,14 @@ Example
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), {{packageName}}.ContextAccessToken, "ACCESSTOKENSTRING")
 r, err := client.Service.Operation(auth, args)
 ```
 
 Or via OAuth2 module to automatically refresh tokens and perform user authentication.
 
-```golang
+```go
 import "golang.org/x/oauth2"
 
 /* Perform OAuth2 round trip request and obtain a token */

samples/client/echo_api/go/README.md

@@ -13,20 +13,20 @@ This API client was generated by the [OpenAPI Generator](https://openapi-generat
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 go get golang.org/x/net/context
 ```
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import openapi "github.com/GIT_USER_ID/GIT_REPO_ID"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -38,7 +38,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `openapi.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), openapi.ContextServerIndex, 1)
 ```
 
@@ -46,7 +46,7 @@ ctx := context.WithValue(context.Background(), openapi.ContextServerIndex, 1)
 
 Templated server URL is formatted using default variables from configuration or from context value `openapi.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), openapi.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -60,7 +60,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `openapi.ContextOperationServerIndices` and `openapi.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), openapi.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -126,7 +126,7 @@ Authentication schemes defined for the API:
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), openapi.ContextBasicAuth, openapi.BasicAuth{
 	UserName: "username",
 	Password: "password",
@@ -140,7 +140,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), openapi.ContextAccessToken, "BEARER_TOKEN_STRING")
 r, err := client.Service.Operation(auth, args)
 ```

samples/client/petstore/go/go-petstore/README.md

@@ -13,7 +13,7 @@ This API client was generated by the [OpenAPI Generator](https://openapi-generat
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 go get golang.org/x/oauth2
 go get golang.org/x/net/context
@@ -21,13 +21,13 @@ go get golang.org/x/net/context
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import petstore "github.com/GIT_USER_ID/GIT_REPO_ID"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -39,7 +39,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `petstore.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 ```
 
@@ -47,7 +47,7 @@ ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 
 Templated server URL is formatted using default variables from configuration or from context value `petstore.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -61,7 +61,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `petstore.ContextOperationServerIndices` and `petstore.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -182,14 +182,14 @@ Authentication schemes defined for the API:
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextAccessToken, "ACCESSTOKENSTRING")
 r, err := client.Service.Operation(auth, args)
 ```
 
 Or via OAuth2 module to automatically refresh tokens and perform user authentication.
 
-```golang
+```go
 import "golang.org/x/oauth2"
 
 /* Perform OAuth2 round trip request and obtain a token */
@@ -209,7 +209,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		petstore.ContextAPIKeys,
@@ -230,7 +230,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		petstore.ContextAPIKeys,
@@ -247,7 +247,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextBasicAuth, petstore.BasicAuth{
 	UserName: "username",
 	Password: "password",

samples/openapi3/client/extensions/x-auth-id-alias/go-experimental/README.md

@@ -13,20 +13,20 @@ This API client was generated by the [OpenAPI Generator](https://openapi-generat
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 go get golang.org/x/net/context
 ```
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import x_auth_id_alias "github.com/GIT_USER_ID/GIT_REPO_ID"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -38,7 +38,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `x_auth_id_alias.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), x_auth_id_alias.ContextServerIndex, 1)
 ```
 
@@ -46,7 +46,7 @@ ctx := context.WithValue(context.Background(), x_auth_id_alias.ContextServerInde
 
 Templated server URL is formatted using default variables from configuration or from context value `x_auth_id_alias.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), x_auth_id_alias.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -60,7 +60,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `x_auth_id_alias.ContextOperationServerIndices` and `x_auth_id_alias.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), x_auth_id_alias.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -101,7 +101,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		x_auth_id_alias.ContextAPIKeys,
@@ -122,7 +122,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		x_auth_id_alias.ContextAPIKeys,

samples/openapi3/client/petstore/go-petstore-generateMarshalJSON-false/README.md

@@ -13,7 +13,7 @@ This API client was generated by the [OpenAPI Generator](https://openapi-generat
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 go get golang.org/x/oauth2
 go get golang.org/x/net/context
@@ -21,13 +21,13 @@ go get golang.org/x/net/context
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import petstore "github.com/GIT_USER_ID/GIT_REPO_ID"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -39,7 +39,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `petstore.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 ```
 
@@ -47,7 +47,7 @@ ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 
 Templated server URL is formatted using default variables from configuration or from context value `petstore.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -61,7 +61,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `petstore.ContextOperationServerIndices` and `petstore.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -104,14 +104,14 @@ Authentication schemes defined for the API:
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextAccessToken, "ACCESSTOKENSTRING")
 r, err := client.Service.Operation(auth, args)
 ```
 
 Or via OAuth2 module to automatically refresh tokens and perform user authentication.
 
-```golang
+```go
 import "golang.org/x/oauth2"
 
 /* Perform OAuth2 round trip request and obtain a token */

samples/openapi3/client/petstore/go/go-petstore/README.md

@@ -13,7 +13,7 @@ This API client was generated by the [OpenAPI Generator](https://openapi-generat
 
 Install the following dependencies:
 
-```shell
+```sh
 go get github.com/stretchr/testify/assert
 go get golang.org/x/oauth2
 go get golang.org/x/net/context
@@ -21,13 +21,13 @@ go get golang.org/x/net/context
 
 Put the package under your project folder and add the following in import:
 
-```golang
+```go
 import petstore "github.com/GIT_USER_ID/GIT_REPO_ID"
 ```
 
 To use a proxy, set the environment variable `HTTP_PROXY`:
 
-```golang
+```go
 os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
 ```
 
@@ -39,7 +39,7 @@ Default configuration comes with `Servers` field that contains server objects as
 
 For using other server than the one defined on index 0 set context value `petstore.ContextServerIndex` of type `int`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 ```
 
@@ -47,7 +47,7 @@ ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
 
 Templated server URL is formatted using default variables from configuration or from context value `petstore.ContextServerVariables` of type `map[string]string`.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextServerVariables, map[string]string{
 	"basePath": "v2",
 })
@@ -61,7 +61,7 @@ Each operation can use different server URL defined using `OperationServers` map
 An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
 Similar rules for overriding default operation server index and variables applies by using `petstore.ContextOperationServerIndices` and `petstore.ContextOperationServerVariables` context maps.
 
-```golang
+```go
 ctx := context.WithValue(context.Background(), petstore.ContextOperationServerIndices, map[string]int{
 	"{classname}Service.{nickname}": 2,
 })
@@ -205,14 +205,14 @@ Authentication schemes defined for the API:
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextAccessToken, "ACCESSTOKENSTRING")
 r, err := client.Service.Operation(auth, args)
 ```
 
 Or via OAuth2 module to automatically refresh tokens and perform user authentication.
 
-```golang
+```go
 import "golang.org/x/oauth2"
 
 /* Perform OAuth2 round trip request and obtain a token */
@@ -232,7 +232,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		petstore.ContextAPIKeys,
@@ -253,7 +253,7 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Example
 
-```golang
+```go
 auth := context.WithValue(
 		context.Background(),
 		petstore.ContextAPIKeys,
@@ -270,7 +270,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextBasicAuth, petstore.BasicAuth{
 	UserName: "username",
 	Password: "password",
@@ -284,7 +284,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 auth := context.WithValue(context.Background(), petstore.ContextAccessToken, "BEARER_TOKEN_STRING")
 r, err := client.Service.Operation(auth, args)
 ```
@@ -295,7 +295,7 @@ r, err := client.Service.Operation(auth, args)
 
 Example
 
-```golang
+```go
 	authConfig := petstore.HttpSignatureAuth{
 		KeyId:                "my-key-id",
 		PrivateKeyPath:       "rsa.pem",

samples/server/petstore/go-echo-server/handlers/api_pet.go

@@ -68,3 +68,4 @@ func (c *Container) UploadFile(ctx echo.Context) error {
 		Message: "Hello World",
 	})
 }
+

samples/server/petstore/go-echo-server/handlers/api_store.go

@@ -35,3 +35,4 @@ func (c *Container) PlaceOrder(ctx echo.Context) error {
 		Message: "Hello World",
 	})
 }
+

samples/server/petstore/go-echo-server/handlers/api_user.go

@@ -67,3 +67,4 @@ func (c *Container) UpdateUser(ctx echo.Context) error {
 		Message: "Hello World",
 	})
 }
+