[Vendor] update go-swagger v0.21.0 -> v0.25.0 (#12670)

* Update go-swagger

* vendor

vendor/github.com/subosito/gotenv/.env

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+HELLO=world

vendor/github.com/subosito/gotenv/.env.invalid

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+lol$wut

vendor/github.com/subosito/gotenv/.gitignore

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+*.test
+*.out
+annotate.json

vendor/github.com/subosito/gotenv/.travis.yml

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+language: go
+go:
+  - 1.x
+os:
+  - linux
+  - osx
+script:
+  - go test -test.v -coverprofile=coverage.out -covermode=count
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

vendor/github.com/subosito/gotenv/CHANGELOG.md

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+# Changelog
+
+## [1.2.0] - 2019-08-03
+
+### Added
+
+- Add `Must` helper to raise an error as panic. It can be used with `Load` and `OverLoad`.
+- Add more tests to be 100% coverage.
+- Add CHANGELOG
+- Add more OS for the test: OSX and Windows
+
+### Changed
+
+- Reduce complexity and improve source code for having `A+` score in [goreportcard](https://goreportcard.com/report/github.com/subosito/gotenv).
+- Updated README with mentions to all available functions
+
+### Removed
+
+- Remove `ErrFormat`
+- Remove `MustLoad` and `MustOverload`, replaced with `Must` helper.
+
+## [1.1.1] - 2018-06-05
+
+### Changed
+
+- Replace `os.Getenv` with `os.LookupEnv` to ensure that the environment variable is not set, by [radding](https://github.com/radding)
+
+## [1.1.0] - 2017-03-20
+
+### Added
+
+- Supports carriage return in env
+- Handle files with UTF-8 BOM 
+
+### Changed
+
+- Whitespace handling
+
+### Fixed
+
+- Incorrect variable expansion
+- Handling escaped '$' characters
+
+## [1.0.0] - 2014-10-05
+
+First stable release.
+

vendor/github.com/subosito/gotenv/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2013 Alif Rachmawadi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/subosito/gotenv/README.md

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+# gotenv
+
+[![Build Status](https://travis-ci.org/subosito/gotenv.svg?branch=master)](https://travis-ci.org/subosito/gotenv)
+[![Build status](https://ci.appveyor.com/api/projects/status/wb2e075xkfl0m0v2/branch/master?svg=true)](https://ci.appveyor.com/project/subosito/gotenv/branch/master)
+[![Coverage Status](https://badgen.net/codecov/c/github/subosito/gotenv)](https://codecov.io/gh/subosito/gotenv)
+[![Go Report Card](https://goreportcard.com/badge/github.com/subosito/gotenv)](https://goreportcard.com/report/github.com/subosito/gotenv)
+[![GoDoc](https://godoc.org/github.com/subosito/gotenv?status.svg)](https://godoc.org/github.com/subosito/gotenv)
+
+Load environment variables dynamically in Go.
+
+## Usage
+
+Put the gotenv package on your `import` statement:
+
+```go
+import "github.com/subosito/gotenv"
+```
+
+To modify your app environment variables, `gotenv` expose 2 main functions:
+
+- `gotenv.Load`
+- `gotenv.Apply`
+
+By default, `gotenv.Load` will look for a file called `.env` in the current working directory.
+
+Behind the scene, it will then load `.env` file and export the valid variables to the environment variables. Make sure you call the method as soon as possible to ensure it loads all variables, say, put it on `init()` function.
+
+Once loaded you can use `os.Getenv()` to get the value of the variable.
+
+Let's say you have `.env` file:
+
+```
+APP_ID=1234567
+APP_SECRET=abcdef
+```
+
+Here's the example of your app:
+
+```go
+package main
+
+import (
+	"github.com/subosito/gotenv"
+	"log"
+	"os"
+)
+
+func init() {
+	gotenv.Load()
+}
+
+func main() {
+	log.Println(os.Getenv("APP_ID"))     // "1234567"
+	log.Println(os.Getenv("APP_SECRET")) // "abcdef"
+}
+```
+
+You can also load other than `.env` file if you wish. Just supply filenames when calling `Load()`. It will load them in order and the first value set for a variable will win.:
+
+```go
+gotenv.Load(".env.production", "credentials")
+```
+
+While `gotenv.Load` loads entries from `.env` file, `gotenv.Apply` allows you to use any `io.Reader`:
+
+```go
+gotenv.Apply(strings.NewReader("APP_ID=1234567"))
+
+log.Println(os.Getenv("APP_ID"))
+// Output: "1234567"
+```
+
+Both `gotenv.Load` and `gotenv.Apply` **DO NOT** overrides existing environment variables. If you want to override existing ones, you can see section below.
+
+### Environment Overrides
+
+Besides above functions, `gotenv` also provides another functions that overrides existing:
+
+- `gotenv.OverLoad`
+- `gotenv.OverApply`
+
+
+Here's the example of this overrides behavior:
+
+```go
+os.Setenv("HELLO", "world")
+
+// NOTE: using Apply existing value will be reserved
+gotenv.Apply(strings.NewReader("HELLO=universe"))
+fmt.Println(os.Getenv("HELLO"))
+// Output: "world"
+
+// NOTE: using OverApply existing value will be overridden
+gotenv.OverApply(strings.NewReader("HELLO=universe"))
+fmt.Println(os.Getenv("HELLO"))
+// Output: "universe"
+```
+
+### Throw a Panic
+
+Both `gotenv.Load` and `gotenv.OverLoad` returns an error on something wrong occurred, like your env file is not exist, and so on. To make it easier to use, `gotenv` also provides `gotenv.Must` helper, to let it panic when an error returned.
+
+```go
+err := gotenv.Load(".env-is-not-exist")
+fmt.Println("error", err)
+// error: open .env-is-not-exist: no such file or directory
+
+gotenv.Must(gotenv.Load, ".env-is-not-exist")
+// it will throw a panic
+// panic: open .env-is-not-exist: no such file or directory
+```
+
+### Another Scenario
+
+Just in case you want to parse environment variables from any `io.Reader`, gotenv keeps its `Parse` and `StrictParse` function as public API so you can use that.
+
+```go
+// import "strings"
+
+pairs := gotenv.Parse(strings.NewReader("FOO=test\nBAR=$FOO"))
+// gotenv.Env{"FOO": "test", "BAR": "test"}
+
+err, pairs = gotenv.StrictParse(strings.NewReader(`FOO="bar"`))
+// gotenv.Env{"FOO": "bar"}
+```
+
+`Parse` ignores invalid lines and returns `Env` of valid environment variables, while `StrictParse` returns an error for invalid lines.
+
+## Notes
+
+The gotenv package is a Go port of [`dotenv`](https://github.com/bkeepers/dotenv) project with some additions made for Go. For general features, it aims to be compatible as close as possible.

vendor/github.com/subosito/gotenv/appveyor.yml

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+build: off
+clone_folder: c:\gopath\src\github.com\subosito\gotenv
+environment:
+  GOPATH: c:\gopath
+stack: go 1.10
+before_test:
+  - go get -t
+test_script:
+  - go test -v -cover -race

vendor/github.com/subosito/gotenv/gotenv.go

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+// Package gotenv provides functionality to dynamically load the environment variables
+package gotenv
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"strings"
+)
+
+const (
+	// Pattern for detecting valid line format
+	linePattern = `\A\s*(?:export\s+)?([\w\.]+)(?:\s*=\s*|:\s+?)('(?:\'|[^'])*'|"(?:\"|[^"])*"|[^#\n]+)?\s*(?:\s*\#.*)?\z`
+
+	// Pattern for detecting valid variable within a value
+	variablePattern = `(\\)?(\$)(\{?([A-Z0-9_]+)?\}?)`
+)
+
+// Env holds key/value pair of valid environment variable
+type Env map[string]string
+
+/*
+Load is a function to load a file or multiple files and then export the valid variables into environment variables if they do not exist.
+When it's called with no argument, it will load `.env` file on the current path and set the environment variables.
+Otherwise, it will loop over the filenames parameter and set the proper environment variables.
+*/
+func Load(filenames ...string) error {
+	return loadenv(false, filenames...)
+}
+
+/*
+OverLoad is a function to load a file or multiple files and then export and override the valid variables into environment variables.
+*/
+func OverLoad(filenames ...string) error {
+	return loadenv(true, filenames...)
+}
+
+/*
+Must is wrapper function that will panic when supplied function returns an error.
+*/
+func Must(fn func(filenames ...string) error, filenames ...string) {
+	if err := fn(filenames...); err != nil {
+		panic(err.Error())
+	}
+}
+
+/*
+Apply is a function to load an io Reader then export the valid variables into environment variables if they do not exist.
+*/
+func Apply(r io.Reader) error {
+	return parset(r, false)
+}
+
+/*
+OverApply is a function to load an io Reader then export and override the valid variables into environment variables.
+*/
+func OverApply(r io.Reader) error {
+	return parset(r, true)
+}
+
+func loadenv(override bool, filenames ...string) error {
+	if len(filenames) == 0 {
+		filenames = []string{".env"}
+	}
+
+	for _, filename := range filenames {
+		f, err := os.Open(filename)
+		if err != nil {
+			return err
+		}
+
+		err = parset(f, override)
+		if err != nil {
+			return err
+		}
+
+		f.Close()
+	}
+
+	return nil
+}
+
+// parse and set :)
+func parset(r io.Reader, override bool) error {
+	env, err := StrictParse(r)
+	if err != nil {
+		return err
+	}
+
+	for key, val := range env {
+		setenv(key, val, override)
+	}
+
+	return nil
+}
+
+func setenv(key, val string, override bool) {
+	if override {
+		os.Setenv(key, val)
+	} else {
+		if _, present := os.LookupEnv(key); !present {
+			os.Setenv(key, val)
+		}
+	}
+}
+
+// Parse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is skipping any invalid lines and only processing the valid one.
+func Parse(r io.Reader) Env {
+	env, _ := StrictParse(r)
+	return env
+}
+
+// StrictParse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is returning an error if there are any invalid lines.
+func StrictParse(r io.Reader) (Env, error) {
+	env := make(Env)
+	scanner := bufio.NewScanner(r)
+
+	i := 1
+	bom := string([]byte{239, 187, 191})
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if i == 1 {
+			line = strings.TrimPrefix(line, bom)
+		}
+
+		i++
+
+		err := parseLine(line, env)
+		if err != nil {
+			return env, err
+		}
+	}
+
+	return env, nil
+}
+
+func parseLine(s string, env Env) error {
+	rl := regexp.MustCompile(linePattern)
+	rm := rl.FindStringSubmatch(s)
+
+	if len(rm) == 0 {
+		return checkFormat(s, env)
+	}
+
+	key := rm[1]
+	val := rm[2]
+
+	// determine if string has quote prefix
+	hdq := strings.HasPrefix(val, `"`)
+
+	// determine if string has single quote prefix
+	hsq := strings.HasPrefix(val, `'`)
+
+	// trim whitespace
+	val = strings.Trim(val, " ")
+
+	// remove quotes '' or ""
+	rq := regexp.MustCompile(`\A(['"])(.*)(['"])\z`)
+	val = rq.ReplaceAllString(val, "$2")
+
+	if hdq {
+		val = strings.Replace(val, `\n`, "\n", -1)
+		val = strings.Replace(val, `\r`, "\r", -1)
+
+		// Unescape all characters except $ so variables can be escaped properly
+		re := regexp.MustCompile(`\\([^$])`)
+		val = re.ReplaceAllString(val, "$1")
+	}
+
+	rv := regexp.MustCompile(variablePattern)
+	fv := func(s string) string {
+		return varReplacement(s, hsq, env)
+	}
+
+	val = rv.ReplaceAllStringFunc(val, fv)
+	val = parseVal(val, env)
+
+	env[key] = val
+	return nil
+}
+
+func parseExport(st string, env Env) error {
+	if strings.HasPrefix(st, "export") {
+		vs := strings.SplitN(st, " ", 2)
+
+		if len(vs) > 1 {
+			if _, ok := env[vs[1]]; !ok {
+				return fmt.Errorf("line `%s` has an unset variable", st)
+			}
+		}
+	}
+
+	return nil
+}
+
+func varReplacement(s string, hsq bool, env Env) string {
+	if strings.HasPrefix(s, "\\") {
+		return strings.TrimPrefix(s, "\\")
+	}
+
+	if hsq {
+		return s
+	}
+
+	sn := `(\$)(\{?([A-Z0-9_]+)\}?)`
+	rn := regexp.MustCompile(sn)
+	mn := rn.FindStringSubmatch(s)
+
+	if len(mn) == 0 {
+		return s
+	}
+
+	v := mn[3]
+
+	replace, ok := env[v]
+	if !ok {
+		replace = os.Getenv(v)
+	}
+
+	return replace
+}
+
+func checkFormat(s string, env Env) error {
+	st := strings.TrimSpace(s)
+
+	if (st == "") || strings.HasPrefix(st, "#") {
+		return nil
+	}
+
+	if err := parseExport(st, env); err != nil {
+		return err
+	}
+
+	return fmt.Errorf("line `%s` doesn't match format", s)
+}
+
+func parseVal(val string, env Env) string {
+	if strings.Contains(val, "=") {
+		if !(val == "\n" || val == "\r") {
+			kv := strings.Split(val, "\n")
+
+			if len(kv) == 1 {
+				kv = strings.Split(val, "\r")
+			}
+
+			if len(kv) > 1 {
+				val = kv[0]
+
+				for i := 1; i < len(kv); i++ {
+					parseLine(kv[i], env)
+				}
+			}
+		}
+	}
+
+	return val
+}