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

* Update go-swagger

* vendor

vendor/github.com/spf13/afero/.gitignore

@@ -0,0 +1,2 @@
+sftpfs/file1
+sftpfs/test/

vendor/github.com/spf13/afero/.travis.yml

@@ -1,21 +1,22 @@
-sudo: false
-language: go
-
-go:
-  - 1.9
-  - "1.10"
-  - tip
-
-os:
-  - linux
-  - osx
-
-matrix:
-  allow_failures:
-    - go: tip
-  fast_finish: true
-
-script:
-  - go build
-  - go test -race -v ./...
-
+sudo: false
+language: go
+
+go:
+  - "1.13"
+  - "1.14"
+  - tip
+
+os:
+  - linux
+  - osx
+
+matrix:
+  allow_failures:
+    - go: tip
+  fast_finish: true
+
+script:
+  - go build -v ./...
+  - go test -count=1 -cover -race -v ./...
+  - go vet ./...
+  - FILES=$(gofmt -s -l . zipfs sftpfs mem); if [[ -n "${FILES}" ]]; then  echo "You have go format errors; gofmt your changes"; exit 1; fi

vendor/github.com/spf13/afero/README.md

@@ -6,7 +6,7 @@ A FileSystem Abstraction System for Go
 
 # Overview
 
-Afero is an filesystem framework providing a simple, uniform and universal API
+Afero is a filesystem framework providing a simple, uniform and universal API
 interacting with any filesystem, as an abstraction layer providing interfaces,
 types and methods. Afero has an exceptionally clean interface and simple design
 without needless constructors or initialization methods.
@@ -18,7 +18,7 @@ and benefit of the os and ioutil packages.
 Afero provides significant improvements over using the os package alone, most
 notably the ability to create mock and testing filesystems without relying on the disk.
 
-It is suitable for use in a any situation where you would consider using the OS
+It is suitable for use in any situation where you would consider using the OS
 package as it provides an additional abstraction that makes it easy to use a
 memory backed file system during testing. It also adds support for the http
 filesystem for full interoperability.
@@ -41,8 +41,8 @@ Afero is easy to use and easier to adopt.
 
 A few different ways you could use Afero:
 
-* Use the interfaces alone to define you own file system.
-* Wrap for the OS packages.
+* Use the interfaces alone to define your own file system.
+* Wrapper for the OS packages.
 * Define different filesystems for different parts of your application.
 * Use Afero for mock filesystems while testing
 
@@ -380,7 +380,6 @@ The following is a short list of possible backends we hope someone will
 implement:
 
 * SSH
-* ZIP
 * TAR
 * S3
 
@@ -406,28 +405,7 @@ Googles very well.
 
 ## Release Notes
 
-* **0.10.0** 2015.12.10
-  * Full compatibility with Windows
-  * Introduction of afero utilities
-  * Test suite rewritten to work cross platform
-  * Normalize paths for MemMapFs
-  * Adding Sync to the file interface
-  * **Breaking Change** Walk and ReadDir have changed parameter order
-  * Moving types used by MemMapFs to a subpackage
-  * General bugfixes and improvements
-* **0.9.0** 2015.11.05
-  * New Walk function similar to filepath.Walk
-  * MemMapFs.OpenFile handles O_CREATE, O_APPEND, O_TRUNC
-  * MemMapFs.Remove now really deletes the file
-  * InMemoryFile.Readdir and Readdirnames work correctly
-  * InMemoryFile functions lock it for concurrent access
-  * Test suite improvements
-* **0.8.0** 2014.10.28
-  * First public version
-  * Interfaces feel ready for people to build using
-  * Interfaces satisfy all known uses
-  * MemMapFs passes the majority of the OS test suite
-  * OsFs passes the majority of the OS test suite
+See the [Releases Page](https://github.com/spf13/afero/releases).
 
 ## Contributing
 

vendor/github.com/spf13/afero/appveyor.yml

@@ -10,6 +10,6 @@ build_script:
 
     go get -v github.com/spf13/afero/...
 
-    go build github.com/spf13/afero
+    go build -v github.com/spf13/afero/...
 test_script:
-- cmd: go test -race -v github.com/spf13/afero/...
+- cmd: go test -count=1 -cover -race -v github.com/spf13/afero/...

vendor/github.com/spf13/afero/basepath.go

@@ -177,4 +177,30 @@ func (b *BasePathFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
 	return fi, false, err
 }
 
+func (b *BasePathFs) SymlinkIfPossible(oldname, newname string) error {
+	oldname, err := b.RealPath(oldname)
+	if err != nil {
+		return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: err}
+	}
+	newname, err = b.RealPath(newname)
+	if err != nil {
+		return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: err}
+	}
+	if linker, ok := b.source.(Linker); ok {
+		return linker.SymlinkIfPossible(oldname, newname)
+	}
+	return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
+}
+
+func (b *BasePathFs) ReadlinkIfPossible(name string) (string, error) {
+	name, err := b.RealPath(name)
+	if err != nil {
+		return "", &os.PathError{Op: "readlink", Path: name, Err: err}
+	}
+	if reader, ok := b.source.(LinkReader); ok {
+		return reader.ReadlinkIfPossible(name)
+	}
+	return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
+}
+
 // vim: ts=4 sw=4 noexpandtab nolist syn=go

vendor/github.com/spf13/afero/const_bsds.go

@@ -11,7 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build darwin openbsd freebsd netbsd dragonfly
+// +build aix darwin openbsd freebsd netbsd dragonfly
 
 package afero
 

vendor/github.com/spf13/afero/const_win_unix.go

@@ -15,6 +15,7 @@
 // +build !freebsd
 // +build !dragonfly
 // +build !netbsd
+// +build !aix
 
 package afero
 

vendor/github.com/spf13/afero/copyOnWriteFs.go

@@ -117,6 +117,26 @@ func (u *CopyOnWriteFs) LstatIfPossible(name string) (os.FileInfo, bool, error)
 	return fi, false, err
 }
 
+func (u *CopyOnWriteFs) SymlinkIfPossible(oldname, newname string) error {
+	if slayer, ok := u.layer.(Linker); ok {
+		return slayer.SymlinkIfPossible(oldname, newname)
+	}
+
+	return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
+}
+
+func (u *CopyOnWriteFs) ReadlinkIfPossible(name string) (string, error) {
+	if rlayer, ok := u.layer.(LinkReader); ok {
+		return rlayer.ReadlinkIfPossible(name)
+	}
+
+	if rbase, ok := u.base.(LinkReader); ok {
+		return rbase.ReadlinkIfPossible(name)
+	}
+
+	return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
+}
+
 func (u *CopyOnWriteFs) isNotExist(err error) bool {
 	if e, ok := err.(*os.PathError); ok {
 		err = e.Err

vendor/github.com/spf13/afero/go.mod

@@ -1,3 +1,9 @@
 module github.com/spf13/afero
 
-require golang.org/x/text v0.3.0
+require (
+	github.com/pkg/sftp v1.10.1
+	golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586
+	golang.org/x/text v0.3.0
+)
+
+go 1.13

vendor/github.com/spf13/afero/go.sum

@@ -1,2 +1,20 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/kr/fs v0.1.0 h1:Jskdu9ieNAYnjxsi0LbQp1ulIKZV1LAFgK1tWhpZgl8=
+github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/sftp v1.10.1 h1:VasscCm72135zRysgrJDKsntdmPN+OuU3+nnHYA9wyc=
+github.com/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586 h1:7KByu05hhLed2MO29w7p1XfZvZ13m8mub3shuVftRs0=
+golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

vendor/github.com/spf13/afero/ioutil.go

@@ -22,6 +22,7 @@ import (
 	"path/filepath"
 	"sort"
 	"strconv"
+	"strings"
 	"sync"
 	"time"
 )
@@ -147,7 +148,7 @@ func reseed() uint32 {
 	return uint32(time.Now().UnixNano() + int64(os.Getpid()))
 }
 
-func nextSuffix() string {
+func nextRandom() string {
 	randmu.Lock()
 	r := rand
 	if r == 0 {
@@ -159,27 +160,36 @@ func nextSuffix() string {
 	return strconv.Itoa(int(1e9 + r%1e9))[1:]
 }
 
-// TempFile creates a new temporary file in the directory dir
-// with a name beginning with prefix, opens the file for reading
-// and writing, and returns the resulting *File.
+// TempFile creates a new temporary file in the directory dir,
+// opens the file for reading and writing, and returns the resulting *os.File.
+// The filename is generated by taking pattern and adding a random
+// string to the end. If pattern includes a "*", the random string
+// replaces the last "*".
 // If dir is the empty string, TempFile uses the default directory
 // for temporary files (see os.TempDir).
 // Multiple programs calling TempFile simultaneously
-// will not choose the same file.  The caller can use f.Name()
-// to find the pathname of the file.  It is the caller's responsibility
+// will not choose the same file. The caller can use f.Name()
+// to find the pathname of the file. It is the caller's responsibility
 // to remove the file when no longer needed.
-func (a Afero) TempFile(dir, prefix string) (f File, err error) {
-	return TempFile(a.Fs, dir, prefix)
+func (a Afero) TempFile(dir, pattern string) (f File, err error) {
+	return TempFile(a.Fs, dir, pattern)
 }
 
-func TempFile(fs Fs, dir, prefix string) (f File, err error) {
+func TempFile(fs Fs, dir, pattern string) (f File, err error) {
 	if dir == "" {
 		dir = os.TempDir()
 	}
 
+	var prefix, suffix string
+	if pos := strings.LastIndex(pattern, "*"); pos != -1 {
+		prefix, suffix = pattern[:pos], pattern[pos+1:]
+	} else {
+		prefix = pattern
+	}
+
 	nconflict := 0
 	for i := 0; i < 10000; i++ {
-		name := filepath.Join(dir, prefix+nextSuffix())
+		name := filepath.Join(dir, prefix+nextRandom()+suffix)
 		f, err = fs.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
 		if os.IsExist(err) {
 			if nconflict++; nconflict > 10 {
@@ -211,7 +221,7 @@ func TempDir(fs Fs, dir, prefix string) (name string, err error) {
 
 	nconflict := 0
 	for i := 0; i < 10000; i++ {
-		try := filepath.Join(dir, prefix+nextSuffix())
+		try := filepath.Join(dir, prefix+nextRandom())
 		err = fs.Mkdir(try, 0700)
 		if os.IsExist(err) {
 			if nconflict++; nconflict > 10 {

vendor/github.com/spf13/afero/match.go

@@ -106,5 +106,5 @@ func glob(fs Fs, dir, pattern string, matches []string) (m []string, e error) {
 // recognized by Match.
 func hasMeta(path string) bool {
 	// TODO(niemeyer): Should other magic characters be added here?
-	return strings.IndexAny(path, "*?[") >= 0
+	return strings.ContainsAny(path, "*?[")
 }

vendor/github.com/spf13/afero/mem/file.go

@@ -193,8 +193,11 @@ func (f *File) Read(b []byte) (n int, err error) {
 }
 
 func (f *File) ReadAt(b []byte, off int64) (n int, err error) {
+	prev := atomic.LoadInt64(&f.at)
 	atomic.StoreInt64(&f.at, off)
-	return f.Read(b)
+	n, err = f.Read(b)
+	atomic.StoreInt64(&f.at, prev)
+	return
 }
 
 func (f *File) Truncate(size int64) error {
@@ -233,6 +236,9 @@ func (f *File) Seek(offset int64, whence int) (int64, error) {
 }
 
 func (f *File) Write(b []byte) (n int, err error) {
+	if f.closed == true {
+		return 0, ErrFileClosed
+	}
 	if f.readOnly {
 		return 0, &os.PathError{Op: "write", Path: f.fileData.name, Err: errors.New("file handle is read only")}
 	}

vendor/github.com/spf13/afero/memmap.go

@@ -141,9 +141,7 @@ func (m *MemMapFs) Mkdir(name string, perm os.FileMode) error {
 	m.registerWithParent(item)
 	m.mu.Unlock()
 
-	m.Chmod(name, perm|os.ModeDir)
-
-	return nil
+	return m.setFileMode(name, perm|os.ModeDir)
 }
 
 func (m *MemMapFs) MkdirAll(path string, perm os.FileMode) error {
@@ -212,6 +210,9 @@ func (m *MemMapFs) lockfreeOpen(name string) (*mem.FileData, error) {
 func (m *MemMapFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
 	chmod := false
 	file, err := m.openWrite(name)
+	if err == nil && (flag&os.O_EXCL > 0) {
+		return nil, &os.PathError{Op: "open", Path: name, Err: ErrFileExists}
+	}
 	if os.IsNotExist(err) && (flag&os.O_CREATE > 0) {
 		file, err = m.Create(name)
 		chmod = true
@@ -237,7 +238,7 @@ func (m *MemMapFs) OpenFile(name string, flag int, perm os.FileMode) (File, erro
 		}
 	}
 	if chmod {
-		m.Chmod(name, perm)
+		return file, m.setFileMode(name, perm)
 	}
 	return file, nil
 }
@@ -269,7 +270,7 @@ func (m *MemMapFs) RemoveAll(path string) error {
 	m.mu.RLock()
 	defer m.mu.RUnlock()
 
-	for p, _ := range m.getData() {
+	for p := range m.getData() {
 		if strings.HasPrefix(p, path) {
 			m.mu.RUnlock()
 			m.mu.Lock()
@@ -318,6 +319,22 @@ func (m *MemMapFs) Stat(name string) (os.FileInfo, error) {
 }
 
 func (m *MemMapFs) Chmod(name string, mode os.FileMode) error {
+	const chmodBits = os.ModePerm | os.ModeSetuid | os.ModeSetgid | os.ModeSticky // Only a subset of bits are allowed to be changed. Documented under os.Chmod()
+	mode &= chmodBits
+
+	m.mu.RLock()
+	f, ok := m.getData()[name]
+	m.mu.RUnlock()
+	if !ok {
+		return &os.PathError{Op: "chmod", Path: name, Err: ErrFileNotFound}
+	}
+	prevOtherBits := mem.GetFileInfo(f).Mode() & ^chmodBits
+
+	mode = prevOtherBits | mode
+	return m.setFileMode(name, mode)
+}
+
+func (m *MemMapFs) setFileMode(name string, mode os.FileMode) error {
 	name = normalizePath(name)
 
 	m.mu.RLock()

vendor/github.com/spf13/afero/os.go

@@ -99,3 +99,11 @@ func (OsFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
 	fi, err := os.Lstat(name)
 	return fi, true, err
 }
+
+func (OsFs) SymlinkIfPossible(oldname, newname string) error {
+	return os.Symlink(oldname, newname)
+}
+
+func (OsFs) ReadlinkIfPossible(name string) (string, error) {
+	return os.Readlink(name)
+}

vendor/github.com/spf13/afero/readonlyfs.go

@@ -44,6 +44,18 @@ func (r *ReadOnlyFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
 	return fi, false, err
 }
 
+func (r *ReadOnlyFs) SymlinkIfPossible(oldname, newname string) error {
+	return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
+}
+
+func (r *ReadOnlyFs) ReadlinkIfPossible(name string) (string, error) {
+	if srdr, ok := r.source.(LinkReader); ok {
+		return srdr.ReadlinkIfPossible(name)
+	}
+
+	return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
+}
+
 func (r *ReadOnlyFs) Rename(o, n string) error {
 	return syscall.EPERM
 }

vendor/github.com/spf13/afero/regexpfs.go

@@ -126,6 +126,9 @@ func (r *RegexpFs) Open(name string) (File, error) {
 		}
 	}
 	f, err := r.source.Open(name)
+	if err != nil {
+		return nil, err
+	}
 	return &RegexpFile{f: f, re: r.re}, nil
 }
 

vendor/github.com/spf13/afero/symlink.go

@@ -0,0 +1,55 @@
+// Copyright © 2018 Steve Francia <spf@spf13.com>.
+//
+// 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 afero
+
+import (
+	"errors"
+)
+
+// Symlinker is an optional interface in Afero. It is only implemented by the
+// filesystems saying so.
+// It indicates support for 3 symlink related interfaces that implement the
+// behaviors of the os methods:
+//    - Lstat
+//    - Symlink, and
+//    - Readlink
+type Symlinker interface {
+	Lstater
+	Linker
+	LinkReader
+}
+
+// Linker is an optional interface in Afero. It is only implemented by the
+// filesystems saying so.
+// It will call Symlink if the filesystem itself is, or it delegates to, the os filesystem,
+// or the filesystem otherwise supports Symlink's.
+type Linker interface {
+	SymlinkIfPossible(oldname, newname string) error
+}
+
+// ErrNoSymlink is the error that will be wrapped in an os.LinkError if a file system
+// does not support Symlink's either directly or through its delegated filesystem.
+// As expressed by support for the Linker interface.
+var ErrNoSymlink = errors.New("symlink not supported")
+
+// LinkReader is an optional interface in Afero. It is only implemented by the
+// filesystems saying so.
+type LinkReader interface {
+	ReadlinkIfPossible(name string) (string, error)
+}
+
+// ErrNoReadlink is the error that will be wrapped in an os.Path if a file system
+// does not support the readlink operation either directly or through its delegated filesystem.
+// As expressed by support for the LinkReader interface.
+var ErrNoReadlink = errors.New("readlink not supported")

vendor/github.com/spf13/cast/.travis.yml

@@ -4,6 +4,7 @@ env:
 sudo: required
 go:
   - "1.11.x"
+  - "1.12.x"
   - tip
 os:
   - linux

vendor/github.com/spf13/cast/Makefile

@@ -1,4 +1,4 @@
-# A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+GOVERSION := $(shell go version | cut -d ' ' -f 3 | cut -d '.' -f 2)
 
 .PHONY: check fmt lint test test-race vet test-cover-html help
 .DEFAULT_GOAL := help
@@ -12,11 +12,13 @@ test-race: ## Run tests with race detector
 	go test -race ./...
 
 fmt: ## Run gofmt linter
+ifeq "$(GOVERSION)" "12"
 	@for d in `go list` ; do \
 		if [ "`gofmt -l -s $$GOPATH/src/$$d | tee /dev/stderr`" ]; then \
 			echo "^ improperly formatted go files" && echo && exit 1; \
 		fi \
 	done
+endif
 
 lint: ## Run golint linter
 	@for d in `go list` ; do \

vendor/github.com/spf13/cast/caste.go

@@ -819,15 +819,15 @@ func ToStringE(i interface{}) (string, error) {
 	case int8:
 		return strconv.FormatInt(int64(s), 10), nil
 	case uint:
-		return strconv.FormatInt(int64(s), 10), nil
+		return strconv.FormatUint(uint64(s), 10), nil
 	case uint64:
-		return strconv.FormatInt(int64(s), 10), nil
+		return strconv.FormatUint(uint64(s), 10), nil
 	case uint32:
-		return strconv.FormatInt(int64(s), 10), nil
+		return strconv.FormatUint(uint64(s), 10), nil
 	case uint16:
-		return strconv.FormatInt(int64(s), 10), nil
+		return strconv.FormatUint(uint64(s), 10), nil
 	case uint8:
-		return strconv.FormatInt(int64(s), 10), nil
+		return strconv.FormatUint(uint64(s), 10), nil
 	case []byte:
 		return string(s), nil
 	case template.HTML:

vendor/github.com/spf13/viper/.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab
+
+[{Makefile, *.mk}]
+indent_style = tab

vendor/github.com/spf13/viper/.gitignore

@@ -1,29 +1,5 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-*.test
-*.bench
-
-.vscode
-
-# exclude dependencies in the `/vendor` folder
-vendor
+/.idea/
+/bin/
+/build/
+/var/
+/vendor/

vendor/github.com/spf13/viper/.golangci.yml

@@ -0,0 +1,27 @@
+linters-settings:
+    golint:
+        min-confidence: 0.1
+    goimports:
+        local-prefixes: github.com/spf13/viper
+
+linters:
+    enable-all: true
+    disable:
+        - funlen
+        - maligned
+
+        # TODO: fix me
+        - wsl
+        - gochecknoinits
+        - gosimple
+        - gochecknoglobals
+        - errcheck
+        - lll
+        - godox
+        - scopelint
+        - gocyclo
+        - gocognit
+        - gocritic
+
+service:
+    golangci-lint-version: 1.21.x

vendor/github.com/spf13/viper/.travis.yml

@@ -1,31 +0,0 @@
-go_import_path: github.com/spf13/viper
-
-language: go
-
-env:
-  global:
-  - GO111MODULE="on"
-
-go:
-  - 1.11.x
-  - tip
-
-os:
-  - linux
-  - osx
-
-matrix:
-  allow_failures:
-    - go: tip
-  fast_finish: true
-
-script:
-  - go install ./...
-  - diff -u <(echo -n) <(gofmt -d .)
-  - go test -v ./...
-
-after_success:
-  - go get -u -d github.com/spf13/hugo
-  - cd $GOPATH/src/github.com/spf13/hugo && make && ./hugo -s docs && cd -
-
-sudo: false

vendor/github.com/spf13/viper/Makefile

@@ -0,0 +1,76 @@
+# A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+
+OS = $(shell uname | tr A-Z a-z)
+export PATH := $(abspath bin/):${PATH}
+
+# Build variables
+BUILD_DIR ?= build
+export CGO_ENABLED ?= 0
+export GOOS = $(shell go env GOOS)
+ifeq (${VERBOSE}, 1)
+ifeq ($(filter -v,${GOARGS}),)
+	GOARGS += -v
+endif
+TEST_FORMAT = short-verbose
+endif
+
+# Dependency versions
+GOTESTSUM_VERSION = 0.4.0
+GOLANGCI_VERSION = 1.21.0
+
+# Add the ability to override some variables
+# Use with care
+-include override.mk
+
+.PHONY: clear
+clear: ## Clear the working area and the project
+	rm -rf bin/
+
+.PHONY: check
+check: test lint ## Run tests and linters
+
+bin/gotestsum: bin/gotestsum-${GOTESTSUM_VERSION}
+	@ln -sf gotestsum-${GOTESTSUM_VERSION} bin/gotestsum
+bin/gotestsum-${GOTESTSUM_VERSION}:
+	@mkdir -p bin
+	curl -L https://github.com/gotestyourself/gotestsum/releases/download/v${GOTESTSUM_VERSION}/gotestsum_${GOTESTSUM_VERSION}_${OS}_amd64.tar.gz | tar -zOxf - gotestsum > ./bin/gotestsum-${GOTESTSUM_VERSION} && chmod +x ./bin/gotestsum-${GOTESTSUM_VERSION}
+
+TEST_PKGS ?= ./...
+.PHONY: test
+test: TEST_FORMAT ?= short
+test: SHELL = /bin/bash
+test: export CGO_ENABLED=1
+test: bin/gotestsum ## Run tests
+	@mkdir -p ${BUILD_DIR}
+	bin/gotestsum --no-summary=skipped --junitfile ${BUILD_DIR}/coverage.xml --format ${TEST_FORMAT} -- -race -coverprofile=${BUILD_DIR}/coverage.txt -covermode=atomic $(filter-out -v,${GOARGS}) $(if ${TEST_PKGS},${TEST_PKGS},./...)
+
+bin/golangci-lint: bin/golangci-lint-${GOLANGCI_VERSION}
+	@ln -sf golangci-lint-${GOLANGCI_VERSION} bin/golangci-lint
+bin/golangci-lint-${GOLANGCI_VERSION}:
+	@mkdir -p bin
+	curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b ./bin/ v${GOLANGCI_VERSION}
+	@mv bin/golangci-lint $@
+
+.PHONY: lint
+lint: bin/golangci-lint ## Run linter
+	bin/golangci-lint run
+
+.PHONY: fix
+fix: bin/golangci-lint ## Fix lint violations
+	bin/golangci-lint run --fix
+
+# Add custom targets here
+-include custom.mk
+
+.PHONY: list
+list: ## List all make targets
+	@${MAKE} -pRrn : -f $(MAKEFILE_LIST) 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | sort
+
+.PHONY: help
+.DEFAULT_GOAL := help
+help:
+	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+# Variable outputting/exporting rules
+var-%: ; @echo $($*)
+varexport-%: ; @echo $*=$($*)

vendor/github.com/spf13/viper/README.md

@@ -1,6 +1,13 @@
-![viper logo](https://cloud.githubusercontent.com/assets/173412/10886745/998df88a-8151-11e5-9448-4736db51020d.png)
+![Viper](.github/logo.png?raw=true)
 
-Go configuration with fangs!
+[![Mentioned in Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go#configuration)
+
+[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/spf13/viper/CI?style=flat-square)](https://github.com/spf13/viper/actions?query=workflow%3ACI)
+[![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/viper?style=flat-square)](https://goreportcard.com/report/github.com/spf13/viper)
+[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/mod/github.com/spf13/viper)
+
+**Go configuration with fangs!**
 
 Many Go projects are built using Viper including:
 
@@ -12,8 +19,14 @@ Many Go projects are built using Viper including:
 * [BloomApi](https://www.bloomapi.com/)
 * [doctl](https://github.com/digitalocean/doctl)
 * [Clairctl](https://github.com/jgsqware/clairctl)
+* [Mercure](https://mercure.rocks)
 
-[![Build Status](https://travis-ci.org/spf13/viper.svg)](https://travis-ci.org/spf13/viper) [![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![GoDoc](https://godoc.org/github.com/spf13/viper?status.svg)](https://godoc.org/github.com/spf13/viper)
+
+## Install
+
+```console
+go get github.com/spf13/viper
+```
 
 
 ## What is Viper?
@@ -23,7 +36,7 @@ to work within an application, and can handle all types of configuration needs
 and formats. It supports:
 
 * setting defaults
-* reading from JSON, TOML, YAML, HCL, and Java properties config files
+* reading from JSON, TOML, YAML, HCL, envfile and Java properties config files
 * live watching and re-reading of config files (optional)
 * reading from environment variables
 * reading from remote config systems (etcd or Consul), and watching changes
@@ -31,8 +44,8 @@ and formats. It supports:
 * reading from buffer
 * setting explicit values
 
-Viper can be thought of as a registry for all of your applications
-configuration needs.
+Viper can be thought of as a registry for all of your applications configuration needs.
+
 
 ## Why Viper?
 
@@ -42,34 +55,31 @@ Viper is here to help with that.
 
 Viper does the following for you:
 
-1. Find, load, and unmarshal a configuration file in JSON, TOML, YAML, HCL, or Java properties formats.
-2. Provide a mechanism to set default values for your different
-   configuration options.
-3. Provide a mechanism to set override values for options specified through
-   command line flags.
-4. Provide an alias system to easily rename parameters without breaking existing
-   code.
-5. Make it easy to tell the difference between when a user has provided a
-   command line or config file which is the same as the default.
+1. Find, load, and unmarshal a configuration file in JSON, TOML, YAML, HCL, INI, envfile or Java properties formats.
+2. Provide a mechanism to set default values for your different configuration options.
+3. Provide a mechanism to set override values for options specified through command line flags.
+4. Provide an alias system to easily rename parameters without breaking existing code.
+5. Make it easy to tell the difference between when a user has provided a command line or config file which is the same as the default.
 
-Viper uses the following precedence order. Each item takes precedence over the
-item below it:
+Viper uses the following precedence order. Each item takes precedence over the item below it:
 
- * explicit call to Set
+ * explicit call to `Set`
  * flag
  * env
  * config
  * key/value store
  * default
 
-Viper configuration keys are case insensitive.
+**Important:** Viper configuration keys are case insensitive.
+There are ongoing discussions about making that optional.
+
 
 ## Putting Values into Viper
 
 ### Establishing Defaults
 
 A good configuration system will support default values. A default value is not
-required for a key, but it’s useful in the event that a key hasn’t been set via
+required for a key, but it’s useful in the event that a key hasn't been set via
 config file, environment variable, remote configuration or flag.
 
 Examples:
@@ -83,7 +93,7 @@ viper.SetDefault("Taxonomies", map[string]string{"tag": "tags", "category": "cat
 ### Reading Config Files
 
 Viper requires minimal configuration so it knows where to look for config files.
-Viper supports JSON, TOML, YAML, HCL, and Java Properties files. Viper can search multiple paths, but
+Viper supports JSON, TOML, YAML, HCL, INI, envfile and Java Properties files. Viper can search multiple paths, but
 currently a single Viper instance only supports a single configuration file.
 Viper does not default to any configuration search paths leaving defaults decision
 to an application.
@@ -94,6 +104,7 @@ where a configuration file is expected.
 
 ```go
 viper.SetConfigName("config") // name of config file (without extension)
+viper.SetConfigType("yaml") // REQUIRED if the config file does not have the extension in the name
 viper.AddConfigPath("/etc/appname/")   // path to look for the config file in
 viper.AddConfigPath("$HOME/.appname")  // call multiple times to add many search paths
 viper.AddConfigPath(".")               // optionally look for config in the working directory
@@ -103,6 +114,44 @@ if err != nil { // Handle errors reading the config file
 }
 ```
 
+You can handle the specific case where no config file is found like this:
+
+```go
+if err := viper.ReadInConfig(); err != nil {
+    if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+        // Config file not found; ignore error if desired
+    } else {
+        // Config file was found but another error was produced
+    }
+}
+
+// Config file found and successfully parsed
+```
+
+*NOTE [since 1.6]:* You can also have a file without an extension and specify the format programmaticaly. For those configuration files that lie in the home of the user without any extension like `.bashrc`
+
+### Writing Config Files
+
+Reading from config files is useful, but at times you want to store all modifications made at run time.
+For that, a bunch of commands are available, each with its own purpose:
+
+* WriteConfig - writes the current viper configuration to the predefined path, if exists. Errors if no predefined path. Will overwrite the current config file, if it exists.
+* SafeWriteConfig - writes the current viper configuration to the predefined path. Errors if no predefined path. Will not overwrite the current config file, if it exists.
+* WriteConfigAs - writes the current viper configuration to the given filepath. Will overwrite the given file, if it exists.
+* SafeWriteConfigAs - writes the current viper configuration to the given filepath. Will not overwrite the given file, if it exists.
+
+As a rule of the thumb, everything marked with safe won't overwrite any file, but just create if not existent, whilst the default behavior is to create or truncate.
+
+A small examples section:
+
+```go
+viper.WriteConfig() // writes current config to predefined path set by 'viper.AddConfigPath()' and 'viper.SetConfigName'
+viper.SafeWriteConfig()
+viper.WriteConfigAs("/path/to/my/.config")
+viper.SafeWriteConfigAs("/path/to/my/.config") // will error since it has already been written
+viper.SafeWriteConfigAs("/path/to/my/.other_config")
+```
+
 ### Watching and re-reading config files
 
 Viper supports the ability to have your application live read a config file while running.
@@ -186,7 +235,7 @@ with ENV:
  * `BindEnv(string...) : error`
  * `SetEnvPrefix(string)`
  * `SetEnvKeyReplacer(string...) *strings.Replacer`
-  * `AllowEmptyEnvVar(bool)`
+ * `AllowEmptyEnv(bool)`
 
 _When working with ENV variables, it’s important to recognize that Viper
 treats ENV variables as case sensitive._
@@ -199,9 +248,9 @@ prefix.
 `BindEnv` takes one or two parameters. The first parameter is the key name, the
 second is the name of the environment variable. The name of the environment
 variable is case sensitive. If the ENV variable name is not provided, then
-Viper will automatically assume that the key name matches the ENV variable name,
-but the ENV variable is IN ALL CAPS. When you explicitly provide the ENV
-variable name, it **does not** automatically add the prefix.
+Viper will automatically assume that the ENV variable matches the following format: prefix + "_" + the key name in ALL CAPS. When you explicitly provide the ENV variable name (the second parameter),
+it **does not** automatically add the prefix. For example if the second parameter is "id",
+Viper will look for the ENV variable "ID".
 
 One important thing to recognize when working with ENV variables is that the
 value will be read each time it is accessed. Viper does not fix the value when
@@ -218,6 +267,9 @@ keys to an extent. This is useful if you want to use `-` or something in your
 `Get()` calls, but want your environmental variables to use `_` delimiters. An
 example of using it can be found in `viper_test.go`.
 
+Alternatively, you can use `EnvKeyReplacer` with `NewWithOptions` factory function.
+Unlike `SetEnvKeyReplacer`, it accepts a `StringReplacer` interface allowing you to write custom string replacing logic.
+
 By default empty environment variables are considered unset and will fall back to
 the next configuration source. To treat empty environment variables as set, use
 the `AllowEmptyEnv` method.
@@ -346,12 +398,12 @@ package:
 
 `import _ "github.com/spf13/viper/remote"`
 
-Viper will read a config string (as JSON, TOML, YAML or HCL) retrieved from a path
+Viper will read a config string (as JSON, TOML, YAML, HCL or envfile) retrieved from a path
 in a Key/Value store such as etcd or Consul.  These values take precedence over
 default values, but are overridden by configuration values retrieved from disk,
 flags, or environment variables.
 
-Viper uses [crypt](https://github.com/xordataexchange/crypt) to retrieve
+Viper uses [crypt](https://github.com/bketelsen/crypt) to retrieve
 configuration from the K/V store, which means that you can store your
 configuration values encrypted and have them automatically decrypted if you have
 the correct gpg keyring.  Encryption is optional.
@@ -363,7 +415,7 @@ independently of it.
 K/V store. `crypt` defaults to etcd on http://127.0.0.1:4001.
 
 ```bash
-$ go get github.com/xordataexchange/crypt/bin/crypt
+$ go get github.com/bketelsen/crypt/bin/crypt
 $ crypt set -plaintext /config/hugo.json /Users/hugo/settings/config.json
 ```
 
@@ -381,12 +433,12 @@ how to use Consul.
 #### etcd
 ```go
 viper.AddRemoteProvider("etcd", "http://127.0.0.1:4001","/config/hugo.json")
-viper.SetConfigType("json") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+viper.SetConfigType("json") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 err := viper.ReadRemoteConfig()
 ```
 
 #### Consul
-You need to set a key to Consul key/value storage with JSON value containing your desired config.  
+You need to set a key to Consul key/value storage with JSON value containing your desired config.
 For example, create a Consul key/value store key `MY_CONSUL_KEY` with value:
 
 ```json
@@ -405,11 +457,21 @@ fmt.Println(viper.Get("port")) // 8080
 fmt.Println(viper.Get("hostname")) // myhostname.com
 ```
 
+#### Firestore
+
+```go
+viper.AddRemoteProvider("firestore", "google-cloud-project-id", "collection/document")
+viper.SetConfigType("json") // Config's format: "json", "toml", "yaml", "yml"
+err := viper.ReadRemoteConfig()
+```
+
+Of course, you're allowed to use `SecureRemoteProvider` also
+
 ### Remote Key/Value Store Example - Encrypted
 
 ```go
 viper.AddSecureRemoteProvider("etcd","http://127.0.0.1:4001","/config/hugo.json","/etc/secrets/mykeyring.gpg")
-viper.SetConfigType("json") // because there is no file extension in a stream of bytes,  supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+viper.SetConfigType("json") // because there is no file extension in a stream of bytes,  supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 err := viper.ReadRemoteConfig()
 ```
 
@@ -420,7 +482,7 @@ err := viper.ReadRemoteConfig()
 var runtime_viper = viper.New()
 
 runtime_viper.AddRemoteProvider("etcd", "http://127.0.0.1:4001", "/config/hugo.yml")
-runtime_viper.SetConfigType("yaml") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+runtime_viper.SetConfigType("yaml") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 
 // read from remote config the first time.
 err := runtime_viper.ReadRemoteConfig()
@@ -456,6 +518,7 @@ The following functions and methods exist:
  * `GetBool(key string) : bool`
  * `GetFloat64(key string) : float64`
  * `GetInt(key string) : int`
+ * `GetIntSlice(key string) : []int`
  * `GetString(key string) : string`
  * `GetStringMap(key string) : map[string]interface{}`
  * `GetStringMapString(key string) : map[string]string`
@@ -611,30 +674,89 @@ type config struct {
 
 var C config
 
-err := Unmarshal(&C)
+err := viper.Unmarshal(&C)
 if err != nil {
 	t.Fatalf("unable to decode into struct, %v", err)
 }
 ```
 
+If you want to unmarshal configuration where the keys themselves contain dot (the default key delimiter),
+you have to change the delimiter:
+
+```go
+v := viper.NewWithOptions(viper.KeyDelimiter("::"))
+
+v.SetDefault("chart::values", map[string]interface{}{
+    "ingress": map[string]interface{}{
+        "annotations": map[string]interface{}{
+            "traefik.frontend.rule.type":                 "PathPrefix",
+            "traefik.ingress.kubernetes.io/ssl-redirect": "true",
+        },
+    },
+})
+
+type config struct {
+	Chart struct{
+        Values map[string]interface{}
+    }
+}
+
+var C config
+
+v.Unmarshal(&C)
+```
+
+Viper also supports unmarshaling into embedded structs:
+
+```go
+/*
+Example config:
+
+module:
+    enabled: true
+    token: 89h3f98hbwf987h3f98wenf89ehf
+*/
+type config struct {
+	Module struct {
+		Enabled bool
+
+		moduleConfig `mapstructure:",squash"`
+	}
+}
+
+// moduleConfig could be in a module specific package
+type moduleConfig struct {
+	Token string
+}
+
+var C config
+
+err := viper.Unmarshal(&C)
+if err != nil {
+	t.Fatalf("unable to decode into struct, %v", err)
+}
+```
+
+Viper uses [github.com/mitchellh/mapstructure](https://github.com/mitchellh/mapstructure) under the hood for unmarshaling values which uses `mapstructure` tags by default.
+
 ### Marshalling to string
 
-You may need to marhsal all the settings held in viper into a string rather than write them to a file. 
+You may need to marshal all the settings held in viper into a string rather than write them to a file.
 You can use your favorite format's marshaller with the config returned by `AllSettings()`.
 
 ```go
 import (
     yaml "gopkg.in/yaml.v2"
     // ...
-) 
+)
 
 func yamlStringSettings() string {
     c := viper.AllSettings()
-	bs, err := yaml.Marshal(c)
-	if err != nil {
-        t.Fatalf("unable to marshal config to YAML: %v", err)
+    bs, err := yaml.Marshal(c)
+    if err != nil {
+        log.Fatalf("unable to marshal config to YAML: %v", err)
     }
-	return string(bs)
+    return string(bs)
 }
 ```
 
@@ -672,13 +794,6 @@ different vipers.
 
 ## Q & A
 
-Q: Why not INI files?
-
-A: Ini files are pretty awful. There’s no standard format, and they are hard to
-validate. Viper is designed to work with JSON, TOML or YAML files. If someone
-really wants to add this feature, I’d be happy to merge it. It’s easy to specify
-which formats your application will permit.
-
 Q: Why is it called “Viper”?
 
 A: Viper is designed to be a [companion](http://en.wikipedia.org/wiki/Viper_(G.I._Joe))

vendor/github.com/spf13/viper/flags.go

@@ -36,7 +36,7 @@ type pflagValue struct {
 	flag *pflag.Flag
 }
 
-// HasChanges returns whether the flag has changes or not.
+// HasChanged returns whether the flag has changes or not.
 func (p pflagValue) HasChanged() bool {
 	return p.flag.Changed
 }

vendor/github.com/spf13/viper/go.mod

@@ -1,43 +1,40 @@
 module github.com/spf13/viper
 
+go 1.12
+
 require (
-	github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6 // indirect
+	github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c
 	github.com/coreos/bbolt v1.3.2 // indirect
-	github.com/coreos/etcd v3.3.10+incompatible // indirect
-	github.com/coreos/go-semver v0.2.0 // indirect
 	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/fsnotify/fsnotify v1.4.7
 	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef // indirect
-	github.com/google/btree v1.0.0 // indirect
-	github.com/gorilla/websocket v1.4.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.9.0 // indirect
 	github.com/hashicorp/hcl v1.0.0
 	github.com/jonboulle/clockwork v0.1.0 // indirect
-	github.com/magiconair/properties v1.8.0
+	github.com/magiconair/properties v1.8.1
 	github.com/mitchellh/mapstructure v1.1.2
 	github.com/pelletier/go-toml v1.2.0
 	github.com/prometheus/client_golang v0.9.3 // indirect
+	github.com/smartystreets/goconvey v1.6.4 // indirect
 	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spf13/afero v1.1.2
 	github.com/spf13/cast v1.3.0
 	github.com/spf13/jwalterweatherman v1.0.0
 	github.com/spf13/pflag v1.0.3
-	github.com/stretchr/testify v1.2.2
+	github.com/stretchr/testify v1.3.0
+	github.com/subosito/gotenv v1.2.0
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
-	github.com/ugorji/go v1.1.4 // indirect
 	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
-	github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77
 	go.etcd.io/bbolt v1.3.2 // indirect
 	go.uber.org/atomic v1.4.0 // indirect
 	go.uber.org/multierr v1.1.0 // indirect
 	go.uber.org/zap v1.10.0 // indirect
-	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
-	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
-	google.golang.org/grpc v1.21.0 // indirect
-	gopkg.in/yaml.v2 v2.2.2
+	gopkg.in/ini.v1 v1.51.0
+	gopkg.in/yaml.v2 v2.2.4
 )

vendor/github.com/spf13/viper/go.sum

@@ -1,35 +1,62 @@
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 github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
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+github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
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@@ -42,24 +69,79 @@ github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfU
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@@ -99,8 +202,16 @@ github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084 h1:sofwID9zm4tzr
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@@ -112,19 +223,23 @@ github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9
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@@ -132,47 +247,142 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
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+gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
+gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=

vendor/github.com/spf13/viper/util.go

@@ -114,11 +114,11 @@ func absPathify(inPath string) string {
 	return ""
 }
 
-// Check if File / Directory Exists
+// Check if file Exists
 func exists(fs afero.Fs, path string) (bool, error) {
-	_, err := fs.Stat(path)
+	stat, err := fs.Stat(path)
 	if err == nil {
-		return true, nil
+		return !stat.IsDir(), nil
 	}
 	if os.IsNotExist(err) {
 		return false, nil

vendor/github.com/spf13/viper/viper.go

@@ -3,7 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
-// Viper is a application configuration system.
+// Viper is an application configuration system.
 // It believes that applications can be configured a variety of ways
 // via flags, ENVIRONMENT variables, configuration files retrieved
 // from the file system, or a remote key/value store.
@@ -23,6 +23,7 @@ import (
 	"bytes"
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"log"
@@ -33,18 +34,19 @@ import (
 	"sync"
 	"time"
 
-	yaml "gopkg.in/yaml.v2"
-
 	"github.com/fsnotify/fsnotify"
 	"github.com/hashicorp/hcl"
 	"github.com/hashicorp/hcl/hcl/printer"
 	"github.com/magiconair/properties"
 	"github.com/mitchellh/mapstructure"
-	toml "github.com/pelletier/go-toml"
+	"github.com/pelletier/go-toml"
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 	jww "github.com/spf13/jwalterweatherman"
 	"github.com/spf13/pflag"
+	"github.com/subosito/gotenv"
+	"gopkg.in/ini.v1"
+	"gopkg.in/yaml.v2"
 )
 
 // ConfigMarshalError happens when failing to marshal the configuration.
@@ -114,6 +116,14 @@ func (fnfe ConfigFileNotFoundError) Error() string {
 	return fmt.Sprintf("Config File %q Not Found in %q", fnfe.name, fnfe.locations)
 }
 
+// ConfigFileAlreadyExistsError denotes failure to write new configuration file.
+type ConfigFileAlreadyExistsError string
+
+// Error returns the formatted error when configuration already exists.
+func (faee ConfigFileAlreadyExistsError) Error() string {
+	return fmt.Sprintf("Config File %q Already Exists", string(faee))
+}
+
 // A DecoderConfigOption can be passed to viper.Unmarshal to configure
 // mapstructure.DecoderConfig options
 type DecoderConfigOption func(*mapstructure.DecoderConfig)
@@ -187,7 +197,7 @@ type Viper struct {
 	envPrefix         string
 
 	automaticEnvApplied bool
-	envKeyReplacer      *strings.Replacer
+	envKeyReplacer      StringReplacer
 	allowEmptyEnv       bool
 
 	config         map[string]interface{}
@@ -225,13 +235,59 @@ func New() *Viper {
 	return v
 }
 
-// Intended for testing, will reset all to default settings.
+// Option configures Viper using the functional options paradigm popularized by Rob Pike and Dave Cheney.
+// If you're unfamiliar with this style,
+// see https://commandcenter.blogspot.com/2014/01/self-referential-functions-and-design.html and
+// https://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis.
+type Option interface {
+	apply(v *Viper)
+}
+
+type optionFunc func(v *Viper)
+
+func (fn optionFunc) apply(v *Viper) {
+	fn(v)
+}
+
+// KeyDelimiter sets the delimiter used for determining key parts.
+// By default it's value is ".".
+func KeyDelimiter(d string) Option {
+	return optionFunc(func(v *Viper) {
+		v.keyDelim = d
+	})
+}
+
+// StringReplacer applies a set of replacements to a string.
+type StringReplacer interface {
+	// Replace returns a copy of s with all replacements performed.
+	Replace(s string) string
+}
+
+// EnvKeyReplacer sets a replacer used for mapping environment variables to internal keys.
+func EnvKeyReplacer(r StringReplacer) Option {
+	return optionFunc(func(v *Viper) {
+		v.envKeyReplacer = r
+	})
+}
+
+// NewWithOptions creates a new Viper instance.
+func NewWithOptions(opts ...Option) *Viper {
+	v := New()
+
+	for _, opt := range opts {
+		opt.apply(v)
+	}
+
+	return v
+}
+
+// Reset is intended for testing, will reset all to default settings.
 // In the public interface for the viper package so applications
 // can use it in their testing as well.
 func Reset() {
 	v = New()
-	SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl"}
-	SupportedRemoteProviders = []string{"etcd", "consul"}
+	SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "dotenv", "env", "ini"}
+	SupportedRemoteProviders = []string{"etcd", "consul", "firestore"}
 }
 
 type defaultRemoteProvider struct {
@@ -269,10 +325,10 @@ type RemoteProvider interface {
 }
 
 // SupportedExts are universally supported extensions.
-var SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl"}
+var SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "dotenv", "env", "ini"}
 
 // SupportedRemoteProviders are universally supported remote providers.
-var SupportedRemoteProviders = []string{"etcd", "consul"}
+var SupportedRemoteProviders = []string{"etcd", "consul", "firestore"}
 
 func OnConfigChange(run func(in fsnotify.Event)) { v.OnConfigChange(run) }
 func (v *Viper) OnConfigChange(run func(in fsnotify.Event)) {
@@ -294,6 +350,7 @@ func (v *Viper) WatchConfig() {
 		filename, err := v.getConfigFile()
 		if err != nil {
 			log.Printf("error: %v\n", err)
+			initWG.Done()
 			return
 		}
 
@@ -343,7 +400,7 @@ func (v *Viper) WatchConfig() {
 			}
 		}()
 		watcher.Add(configDir)
-		initWG.Done()   // done initalizing the watch in this go routine, so the parent routine can move on...
+		initWG.Done()   // done initializing the watch in this go routine, so the parent routine can move on...
 		eventsWG.Wait() // now, wait for event loop to end in this go-routine...
 	}()
 	initWG.Wait() // make sure that the go routine above fully ended before returning
@@ -420,7 +477,7 @@ func (v *Viper) AddConfigPath(in string) {
 
 // AddRemoteProvider adds a remote configuration source.
 // Remote Providers are searched in the order they are added.
-// provider is a string value, "etcd" or "consul" are currently supported.
+// provider is a string value: "etcd", "consul" or "firestore" are currently supported.
 // endpoint is the url.  etcd requires http://ip:port  consul requires ip:port
 // path is the path in the k/v store to retrieve configuration
 // To retrieve a config file called myapp.json from /configs/myapp.json
@@ -449,14 +506,14 @@ func (v *Viper) AddRemoteProvider(provider, endpoint, path string) error {
 
 // AddSecureRemoteProvider adds a remote configuration source.
 // Secure Remote Providers are searched in the order they are added.
-// provider is a string value, "etcd" or "consul" are currently supported.
+// provider is a string value: "etcd", "consul" or "firestore" are currently supported.
 // endpoint is the url.  etcd requires http://ip:port  consul requires ip:port
 // secretkeyring is the filepath to your openpgp secret keyring.  e.g. /etc/secrets/myring.gpg
 // path is the path in the k/v store to retrieve configuration
 // To retrieve a config file called myapp.json from /configs/myapp.json
 // you should set path to /configs and set config name (SetConfigName()) to
 // "myapp"
-// Secure Remote Providers are implemented with github.com/xordataexchange/crypt
+// Secure Remote Providers are implemented with github.com/bketelsen/crypt
 func AddSecureRemoteProvider(provider, endpoint, path, secretkeyring string) error {
 	return v.AddSecureRemoteProvider(provider, endpoint, path, secretkeyring)
 }
@@ -668,7 +725,7 @@ func GetViper() *Viper {
 func Get(key string) interface{} { return v.Get(key) }
 func (v *Viper) Get(key string) interface{} {
 	lcaseKey := strings.ToLower(key)
-	val := v.find(lcaseKey)
+	val := v.find(lcaseKey, true)
 	if val == nil {
 		return nil
 	}
@@ -705,6 +762,8 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToDuration(val)
 		case []string:
 			return cast.ToStringSlice(val)
+		case []int:
+			return cast.ToIntSlice(val)
 		}
 	}
 
@@ -794,6 +853,12 @@ func (v *Viper) GetDuration(key string) time.Duration {
 	return cast.ToDuration(v.Get(key))
 }
 
+// GetIntSlice returns the value associated with the key as a slice of int values.
+func GetIntSlice(key string) []int { return v.GetIntSlice(key) }
+func (v *Viper) GetIntSlice(key string) []int {
+	return cast.ToIntSlice(v.Get(key))
+}
+
 // GetStringSlice returns the value associated with the key as a slice of strings.
 func GetStringSlice(key string) []string { return v.GetStringSlice(key) }
 func (v *Viper) GetStringSlice(key string) []string {
@@ -884,8 +949,11 @@ func decode(input interface{}, config *mapstructure.DecoderConfig) error {
 
 // UnmarshalExact unmarshals the config into a Struct, erroring if a field is nonexistent
 // in the destination struct.
-func (v *Viper) UnmarshalExact(rawVal interface{}) error {
-	config := defaultDecoderConfig(rawVal)
+func UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
+	return v.UnmarshalExact(rawVal, opts...)
+}
+func (v *Viper) UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
+	config := defaultDecoderConfig(rawVal, opts...)
 	config.ErrorUnused = true
 
 	err := decode(v.AllSettings(), config)
@@ -928,11 +996,6 @@ func (v *Viper) BindFlagValues(flags FlagValueSet) (err error) {
 }
 
 // BindFlagValue binds a specific key to a FlagValue.
-// Example (where serverCmd is a Cobra instance):
-//
-//	 serverCmd.Flags().Int("port", 1138, "Port to run Application server on")
-//	 Viper.BindFlagValue("port", serverCmd.Flags().Lookup("port"))
-//
 func BindFlagValue(key string, flag FlagValue) error { return v.BindFlagValue(key, flag) }
 func (v *Viper) BindFlagValue(key string, flag FlagValue) error {
 	if flag == nil {
@@ -950,7 +1013,7 @@ func BindEnv(input ...string) error { return v.BindEnv(input...) }
 func (v *Viper) BindEnv(input ...string) error {
 	var key, envkey string
 	if len(input) == 0 {
-		return fmt.Errorf("BindEnv missing key to bind to")
+		return fmt.Errorf("missing key to bind to")
 	}
 
 	key = strings.ToLower(input[0])
@@ -967,12 +1030,15 @@ func (v *Viper) BindEnv(input ...string) error {
 }
 
 // Given a key, find the value.
-// Viper will check in the following order:
-// flag, env, config file, key/value store, default.
+//
 // Viper will check to see if an alias exists first.
+// Viper will then check in the following order:
+// flag, env, config file, key/value store.
+// Lastly, if no value was found and flagDefault is true, and if the key
+// corresponds to a flag, the flag's default value is returned.
+//
 // Note: this assumes a lower-cased key given.
-func (v *Viper) find(lcaseKey string) interface{} {
-
+func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {
 	var (
 		val    interface{}
 		exists bool
@@ -1012,6 +1078,13 @@ func (v *Viper) find(lcaseKey string) interface{} {
 			s = strings.TrimSuffix(s, "]")
 			res, _ := readAsCSV(s)
 			return res
+		case "intSlice":
+			s := strings.TrimPrefix(flag.ValueString(), "[")
+			s = strings.TrimSuffix(s, "]")
+			res, _ := readAsCSV(s)
+			return cast.ToIntSlice(res)
+		case "stringToString":
+			return stringToStringConv(flag.ValueString())
 		default:
 			return flag.ValueString()
 		}
@@ -1068,24 +1141,33 @@ func (v *Viper) find(lcaseKey string) interface{} {
 		return nil
 	}
 
-	// last chance: if no other value is returned and a flag does exist for the value,
-	// get the flag's value even if the flag's value has not changed
-	if flag, exists := v.pflags[lcaseKey]; exists {
-		switch flag.ValueType() {
-		case "int", "int8", "int16", "int32", "int64":
-			return cast.ToInt(flag.ValueString())
-		case "bool":
-			return cast.ToBool(flag.ValueString())
-		case "stringSlice":
-			s := strings.TrimPrefix(flag.ValueString(), "[")
-			s = strings.TrimSuffix(s, "]")
-			res, _ := readAsCSV(s)
-			return res
-		default:
-			return flag.ValueString()
+	if flagDefault {
+		// last chance: if no value is found and a flag does exist for the key,
+		// get the flag's default value even if the flag's value has not been set.
+		if flag, exists := v.pflags[lcaseKey]; exists {
+			switch flag.ValueType() {
+			case "int", "int8", "int16", "int32", "int64":
+				return cast.ToInt(flag.ValueString())
+			case "bool":
+				return cast.ToBool(flag.ValueString())
+			case "stringSlice":
+				s := strings.TrimPrefix(flag.ValueString(), "[")
+				s = strings.TrimSuffix(s, "]")
+				res, _ := readAsCSV(s)
+				return res
+			case "intSlice":
+				s := strings.TrimPrefix(flag.ValueString(), "[")
+				s = strings.TrimSuffix(s, "]")
+				res, _ := readAsCSV(s)
+				return cast.ToIntSlice(res)
+			case "stringToString":
+				return stringToStringConv(flag.ValueString())
+			default:
+				return flag.ValueString()
+			}
 		}
+		// last item, no need to check shadowing
 	}
-	// last item, no need to check shadowing
 
 	return nil
 }
@@ -1099,12 +1181,36 @@ func readAsCSV(val string) ([]string, error) {
 	return csvReader.Read()
 }
 
+// mostly copied from pflag's implementation of this operation here https://github.com/spf13/pflag/blob/master/string_to_string.go#L79
+// alterations are: errors are swallowed, map[string]interface{} is returned in order to enable cast.ToStringMap
+func stringToStringConv(val string) interface{} {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]interface{}{}
+	}
+	r := csv.NewReader(strings.NewReader(val))
+	ss, err := r.Read()
+	if err != nil {
+		return nil
+	}
+	out := make(map[string]interface{}, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return nil
+		}
+		out[kv[0]] = kv[1]
+	}
+	return out
+}
+
 // IsSet checks to see if the key has been set in any of the data locations.
 // IsSet is case-insensitive for a key.
 func IsSet(key string) bool { return v.IsSet(key) }
 func (v *Viper) IsSet(key string) bool {
 	lcaseKey := strings.ToLower(key)
-	val := v.find(lcaseKey)
+	val := v.find(lcaseKey, false)
 	return val != nil
 }
 
@@ -1123,8 +1229,8 @@ func (v *Viper) SetEnvKeyReplacer(r *strings.Replacer) {
 	v.envKeyReplacer = r
 }
 
-// Aliases provide another accessor for the same key.
-// This enables one to change a name without breaking the application
+// RegisterAlias creates an alias that provides another accessor for the same key.
+// This enables one to change a name without breaking the application.
 func RegisterAlias(alias string, key string) { v.RegisterAlias(alias, key) }
 func (v *Viper) RegisterAlias(alias string, key string) {
 	v.registerAlias(alias, strings.ToLower(key))
@@ -1311,11 +1417,10 @@ func (v *Viper) WriteConfig() error {
 // SafeWriteConfig writes current configuration to file only if the file does not exist.
 func SafeWriteConfig() error { return v.SafeWriteConfig() }
 func (v *Viper) SafeWriteConfig() error {
-	filename, err := v.getConfigFile()
-	if err != nil {
-		return err
+	if len(v.configPaths) < 1 {
+		return errors.New("missing configuration for 'configPath'")
 	}
-	return v.writeConfig(filename, false)
+	return v.SafeWriteConfigAs(filepath.Join(v.configPaths[0], v.configName+"."+v.configType))
 }
 
 // WriteConfigAs writes current configuration to a given filename.
@@ -1327,38 +1432,48 @@ func (v *Viper) WriteConfigAs(filename string) error {
 // SafeWriteConfigAs writes current configuration to a given filename if it does not exist.
 func SafeWriteConfigAs(filename string) error { return v.SafeWriteConfigAs(filename) }
 func (v *Viper) SafeWriteConfigAs(filename string) error {
+	alreadyExists, err := afero.Exists(v.fs, filename)
+	if alreadyExists && err == nil {
+		return ConfigFileAlreadyExistsError(filename)
+	}
 	return v.writeConfig(filename, false)
 }
 
-func writeConfig(filename string, force bool) error { return v.writeConfig(filename, force) }
 func (v *Viper) writeConfig(filename string, force bool) error {
 	jww.INFO.Println("Attempting to write configuration to file.")
+	var configType string
+
 	ext := filepath.Ext(filename)
-	if len(ext) <= 1 {
-		return fmt.Errorf("Filename: %s requires valid extension.", filename)
+	if ext != "" {
+		configType = ext[1:]
+	} else {
+		configType = v.configType
 	}
-	configType := ext[1:]
+	if configType == "" {
+		return fmt.Errorf("config type could not be determined for %s", filename)
+	}
+
 	if !stringInSlice(configType, SupportedExts) {
 		return UnsupportedConfigError(configType)
 	}
 	if v.config == nil {
 		v.config = make(map[string]interface{})
 	}
-	var flags int
-	if force == true {
-		flags = os.O_CREATE | os.O_TRUNC | os.O_WRONLY
-	} else {
-		if _, err := os.Stat(filename); os.IsNotExist(err) {
-			flags = os.O_WRONLY
-		} else {
-			return fmt.Errorf("File: %s exists. Use WriteConfig to overwrite.", filename)
-		}
+	flags := os.O_CREATE | os.O_TRUNC | os.O_WRONLY
+	if !force {
+		flags |= os.O_EXCL
 	}
 	f, err := v.fs.OpenFile(filename, flags, v.configPermissions)
 	if err != nil {
 		return err
 	}
-	return v.marshalWriter(f, configType)
+	defer f.Close()
+
+	if err := v.marshalWriter(f, configType); err != nil {
+		return err
+	}
+
+	return f.Sync()
 }
 
 // Unmarshal a Reader into a map.
@@ -1382,7 +1497,7 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 		}
 
 	case "hcl":
-		obj, err := hcl.Parse(string(buf.Bytes()))
+		obj, err := hcl.Parse(buf.String())
 		if err != nil {
 			return ConfigParseError{err}
 		}
@@ -1400,6 +1515,15 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 			c[k] = v
 		}
 
+	case "dotenv", "env":
+		env, err := gotenv.StrictParse(buf)
+		if err != nil {
+			return ConfigParseError{err}
+		}
+		for k, v := range env {
+			c[k] = v
+		}
+
 	case "properties", "props", "prop":
 		v.properties = properties.NewProperties()
 		var err error
@@ -1415,6 +1539,23 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 			// set innermost value
 			deepestMap[lastKey] = value
 		}
+
+	case "ini":
+		cfg := ini.Empty()
+		err := cfg.Append(buf.Bytes())
+		if err != nil {
+			return ConfigParseError{err}
+		}
+		sections := cfg.Sections()
+		for i := 0; i < len(sections); i++ {
+			section := sections[i]
+			keys := section.Keys()
+			for j := 0; j < len(keys); j++ {
+				key := keys[j]
+				value := cfg.Section(section.Name()).Key(key.Name()).String()
+				c[section.Name()+"."+key.Name()] = value
+			}
+		}
 	}
 
 	insensitiviseMap(c)
@@ -1422,9 +1563,6 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 }
 
 // Marshal a map into Writer.
-func marshalWriter(f afero.File, configType string) error {
-	return v.marshalWriter(f, configType)
-}
 func (v *Viper) marshalWriter(f afero.File, configType string) error {
 	c := v.AllSettings()
 	switch configType {
@@ -1440,6 +1578,9 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 
 	case "hcl":
 		b, err := json.Marshal(c)
+		if err != nil {
+			return ConfigMarshalError{err}
+		}
 		ast, err := hcl.Parse(string(b))
 		if err != nil {
 			return ConfigMarshalError{err}
@@ -1465,6 +1606,18 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 			return ConfigMarshalError{err}
 		}
 
+	case "dotenv", "env":
+		lines := []string{}
+		for _, key := range v.AllKeys() {
+			envName := strings.ToUpper(strings.Replace(key, ".", "_", -1))
+			val := v.Get(key)
+			lines = append(lines, fmt.Sprintf("%v=%v", envName, val))
+		}
+		s := strings.Join(lines, "\n")
+		if _, err := f.WriteString(s); err != nil {
+			return ConfigMarshalError{err}
+		}
+
 	case "toml":
 		t, err := toml.TreeFromMap(c)
 		if err != nil {
@@ -1483,6 +1636,22 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 		if _, err = f.WriteString(string(b)); err != nil {
 			return ConfigMarshalError{err}
 		}
+
+	case "ini":
+		keys := v.AllKeys()
+		cfg := ini.Empty()
+		ini.PrettyFormat = false
+		for i := 0; i < len(keys); i++ {
+			key := keys[i]
+			lastSep := strings.LastIndex(key, ".")
+			sectionName := key[:(lastSep)]
+			keyName := key[(lastSep + 1):]
+			if sectionName == "default" {
+				sectionName = ""
+			}
+			cfg.Section(sectionName).Key(keyName).SetValue(v.Get(key).(string))
+		}
+		cfg.WriteTo(f)
 	}
 	return nil
 }
@@ -1629,7 +1798,7 @@ func (v *Viper) getRemoteConfig(provider RemoteProvider) (map[string]interface{}
 func (v *Viper) watchKeyValueConfigOnChannel() error {
 	for _, rp := range v.remoteProviders {
 		respc, _ := RemoteConfig.WatchChannel(rp)
-		//Todo: Add quit channel
+		// Todo: Add quit channel
 		go func(rc <-chan *RemoteResponse) {
 			for {
 				b := <-rc
@@ -1665,7 +1834,7 @@ func (v *Viper) watchRemoteConfig(provider RemoteProvider) (map[string]interface
 }
 
 // AllKeys returns all keys holding a value, regardless of where they are set.
-// Nested keys are returned with a v.keyDelim (= ".") separator
+// Nested keys are returned with a v.keyDelim separator
 func AllKeys() []string { return v.AllKeys() }
 func (v *Viper) AllKeys() []string {
 	m := map[string]bool{}
@@ -1679,7 +1848,7 @@ func (v *Viper) AllKeys() []string {
 	m = v.flattenAndMergeMap(m, v.defaults, "")
 
 	// convert set of paths to list
-	a := []string{}
+	a := make([]string, 0, len(m))
 	for x := range m {
 		a = append(a, x)
 	}
@@ -1688,7 +1857,7 @@ func (v *Viper) AllKeys() []string {
 
 // flattenAndMergeMap recursively flattens the given map into a map[string]bool
 // of key paths (used as a set, easier to manipulate than a []string):
-// - each path is merged into a single key string, delimited with v.keyDelim (= ".")
+// - each path is merged into a single key string, delimited with v.keyDelim
 // - if a path is shadowed by an earlier value in the initial shadow map,
 //   it is skipped.
 // The resulting set of paths is merged to the given shadow set at the same time.
@@ -1728,7 +1897,7 @@ func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]interfac
 func (v *Viper) mergeFlatMap(shadow map[string]bool, m map[string]interface{}) map[string]bool {
 	// scan keys
 outer:
-	for k, _ := range m {
+	for k := range m {
 		path := strings.Split(k, v.keyDelim)
 		// scan intermediate paths
 		var parentKey string
@@ -1837,6 +2006,12 @@ func (v *Viper) searchInPath(in string) (filename string) {
 		}
 	}
 
+	if v.configType != "" {
+		if b, _ := exists(v.fs, filepath.Join(in, v.configName)); b {
+			return filepath.Join(in, v.configName)
+		}
+	}
+
 	return ""
 }