* [Ruby] Fix Operation Servers
* user `server_index` instead of `index`
* use nil as default
* add tests
* revert tests
* add tests to custom file
* add test file to ruby-faraday
* Add apiNameSuffix to AbstractGoCodegen
* Regenerate files
* Update tests
* Regenerate files
* Update test files
* Regenerate for CI test
* Regenerate for CI test
* Remove some docs
* Add files back
As discussed in https://github.com/OpenAPITools/openapi-generator/pull/7415#discussion_r1113274416, it seems unlikely the code was correct.
server_operation_index is a hash table. In Ruby, `hash[key]` will return the value associated with `key`. If key is absent, `nil` is returned. Because that is sometimes undesirable, there is also `hash.fetch(key)`, which raises an error if the key is absent. It also allows you to specify a default to fall back on: `hash.fetch(key, default)` will return `default` if the key is absent.
So, since not all users will specify a 'server per operation' (or at least: I'm not), the old code would usually set `index` to the `server_index`, which is initialized to 0. The subsequent `if index == nil` will usually return false (`0 != nil` in Ruby), after which the `server_url` call on line 177 constructs the url based on the `server_operation_variables` and `operation_server_settings`, assuming we are dealing with the case where a server per operation is configured. The case where the url should be constructed from `scheme`, `host`, etc. is only called if either `server_index` is explicitly set to `nil` or the key `operation` is explicitly associated with the value `nil` in the `server_operation_index` hash table, both of which seem inappropriate.
* Probe content type for multipart form uploads since many servers require each part to correctly identify its type.
* Update samples
* Add explanatory comment
* Update samples with comment
* Remove double brace initialization
* Use diamond operator
* Less clutter in generated api classes
* Optimize isJsonMime
* Revert change in escapeString
Skip toString() on string parameters.
* Fix edge-cases
A ServerVariable without enumValues and/or operationServers
with any ServerVariables would lead to invalid code.
* Remove dead code
* Refactor containsKey before get
* Minor refactor
* Use JsonMapper.builder() to build ObjectMapper
Fix a bug where ALLOW_COERCION_OF_SCALARS wasn't set properly.
* Update samples
* Oops, fix a typo
* io/ioutil has been deprecated ass of Go 1.16, the same functionality is now provided by package io or package os
* run pr checklist
* Bump go version to 1.16.
* Run pr checklist
* Bump version to 1.18
* Run pr check list
* If the collection type is csv, that means 'dont explode the query params'.
* Simplify the logic just a tad
* url.Values -> Has was added in go1.17 but there are CI tests running at 1.16
* Enable the ruby client to support refreshing access tokens
- The client can now be configured with an access token getter proc
- The proc overrides the the static access token if it is set
* Run generators
* Changes manually cherry-picked (for the most part) from https://github.com/OpenAPITools/openapi-generator/pull/12685/files
* Examples updated post changes
* Missed a change in the mustache template
* Update examples after last fix
* Missed dereference for required files
* Update unit tests
* Missed another test case update
* `f := *f` isn't quite the same as `*f, err = ...`
