Use vendored go-swagger (#8087)

* Use vendored go-swagger

* vendor go-swagger

* revert un wanteed change

* remove un-needed GO111MODULE

* Update Makefile

Co-Authored-By: techknowlogick <matti@mdranta.net>

vendor/github.com/go-swagger/go-swagger/scan/routes.go

@@ -0,0 +1,138 @@
+// +build !go1.11
+
+// Copyright 2015 go-swagger maintainers
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package scan
+
+import (
+	"fmt"
+	"go/ast"
+
+	"github.com/go-openapi/spec"
+
+	"golang.org/x/tools/go/loader"
+)
+
+func opConsumesSetter(op *spec.Operation) func([]string) {
+	return func(consumes []string) { op.Consumes = consumes }
+}
+
+func opProducesSetter(op *spec.Operation) func([]string) {
+	return func(produces []string) { op.Produces = produces }
+}
+
+func opSchemeSetter(op *spec.Operation) func([]string) {
+	return func(schemes []string) { op.Schemes = schemes }
+}
+
+func opSecurityDefsSetter(op *spec.Operation) func([]map[string][]string) {
+	return func(securityDefs []map[string][]string) { op.Security = securityDefs }
+}
+
+func opResponsesSetter(op *spec.Operation) func(*spec.Response, map[int]spec.Response) {
+	return func(def *spec.Response, scr map[int]spec.Response) {
+		if op.Responses == nil {
+			op.Responses = new(spec.Responses)
+		}
+		op.Responses.Default = def
+		op.Responses.StatusCodeResponses = scr
+	}
+}
+
+func opParamSetter(op *spec.Operation) func([]*spec.Parameter) {
+	return func(params []*spec.Parameter) {
+		for _, v := range params {
+			op.AddParam(v)
+		}
+	}
+}
+
+func newRoutesParser(prog *loader.Program) *routesParser {
+	return &routesParser{
+		program: prog,
+	}
+}
+
+type routesParser struct {
+	program     *loader.Program
+	definitions map[string]spec.Schema
+	operations  map[string]*spec.Operation
+	responses   map[string]spec.Response
+	parameters  []*spec.Parameter
+}
+
+func (rp *routesParser) Parse(gofile *ast.File, target interface{}, includeTags map[string]bool, excludeTags map[string]bool) error {
+	tgt := target.(*spec.Paths)
+	for _, comsec := range gofile.Comments {
+		content := parsePathAnnotation(rxRoute, comsec.List)
+
+		if content.Method == "" {
+			continue // it's not, next!
+		}
+
+		if !shouldAcceptTag(content.Tags, includeTags, excludeTags) {
+			if Debug {
+				fmt.Printf("route %s %s is ignored due to tag rules\n", content.Method, content.Path)
+			}
+			continue
+		}
+
+		pthObj := tgt.Paths[content.Path]
+		op := setPathOperation(
+			content.Method, content.ID,
+			&pthObj, rp.operations[content.ID])
+
+		op.Tags = content.Tags
+
+		sp := new(sectionedParser)
+		sp.setTitle = func(lines []string) { op.Summary = joinDropLast(lines) }
+		sp.setDescription = func(lines []string) { op.Description = joinDropLast(lines) }
+		sr := newSetResponses(rp.definitions, rp.responses, opResponsesSetter(op))
+		spa := newSetParams(rp.parameters, opParamSetter(op))
+		sp.taggers = []tagParser{
+			newMultiLineTagParser("Consumes", newMultilineDropEmptyParser(rxConsumes, opConsumesSetter(op)), false),
+			newMultiLineTagParser("Produces", newMultilineDropEmptyParser(rxProduces, opProducesSetter(op)), false),
+			newSingleLineTagParser("Schemes", newSetSchemes(opSchemeSetter(op))),
+			newMultiLineTagParser("Security", newSetSecurity(rxSecuritySchemes, opSecurityDefsSetter(op)), false),
+			newMultiLineTagParser("Parameters", spa, false),
+			newMultiLineTagParser("Responses", sr, false),
+		}
+		if err := sp.Parse(content.Remaining); err != nil {
+			return fmt.Errorf("operation (%s): %v", op.ID, err)
+		}
+
+		if tgt.Paths == nil {
+			tgt.Paths = make(map[string]spec.PathItem)
+		}
+		tgt.Paths[content.Path] = pthObj
+	}
+
+	return nil
+}
+
+func shouldAcceptTag(tags []string, includeTags map[string]bool, excludeTags map[string]bool) bool {
+	for _, tag := range tags {
+		if len(includeTags) > 0 {
+			if includeTags[tag] {
+				return true
+			}
+		} else if len(excludeTags) > 0 {
+			if excludeTags[tag] {
+				return false
+			}
+		}
+	}
+	return len(includeTags) <= 0
+}