Update dependencies (#1813)

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

@@ -79,11 +79,11 @@ would.
 
 So if my application before had:
 ```go
-os.Open('/tmp/foo')
+os.Open("/tmp/foo")
 ```
 We would replace it with:
 ```go
-AppFs.Open('/tmp/foo')
+AppFs.Open("/tmp/foo")
 ```
 
 `AppFs` being the variable we defined above.
@@ -259,6 +259,18 @@ system using InMemoryFile.
 Afero has experimental support for secure file transfer protocol (sftp). Which can
 be used to perform file operations over a encrypted channel.
 
+### GCSFs
+
+Afero has experimental support for Google Cloud Storage (GCS). You can either set the
+`GOOGLE_APPLICATION_CREDENTIALS_JSON` env variable to your JSON credentials or use `opts` in
+`NewGcsFS` to configure access to your GCS bucket.
+
+Some known limitations of the existing implementation:
+* No Chmod support - The GCS ACL could probably be mapped to *nix style permissions but that would add another level of complexity and is ignored in this version.
+* No Chtimes support - Could be simulated with attributes (gcs a/m-times are set implicitly) but that's is left for another version.
+* Not thread safe - Also assumes all file operations are done through the same instance of the GcsFs. File operations between different GcsFs instances are not guaranteed to be consistent.
+
+
 ## Filtering Backends
 
 ### BasePathFs

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

@@ -75,6 +75,10 @@ func (u *CacheOnReadFs) copyToLayer(name string) error {
 	return copyToLayer(u.base, u.layer, name)
 }
 
+func (u *CacheOnReadFs) copyFileToLayer(name string, flag int, perm os.FileMode) error {
+	return copyFileToLayer(u.base, u.layer, name, flag, perm)
+}
+
 func (u *CacheOnReadFs) Chtimes(name string, atime, mtime time.Time) error {
 	st, _, err := u.cacheStatus(name)
 	if err != nil {
@@ -212,7 +216,7 @@ func (u *CacheOnReadFs) OpenFile(name string, flag int, perm os.FileMode) (File,
 	switch st {
 	case cacheLocal, cacheHit:
 	default:
-		if err := u.copyToLayer(name); err != nil {
+		if err := u.copyFileToLayer(name, flag, perm); err != nil {
 			return nil, err
 		}
 	}

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

@@ -71,7 +71,7 @@ func CreateFile(name string) *FileData {
 }
 
 func CreateDir(name string) *FileData {
-	return &FileData{name: name, memDir: &DirMap{}, dir: true}
+	return &FileData{name: name, memDir: &DirMap{}, dir: true, modtime: time.Now()}
 }
 
 func ChangeFileName(f *FileData, newname string) {

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

@@ -279,7 +279,7 @@ func (m *MemMapFs) RemoveAll(path string) error {
 	defer m.mu.RUnlock()
 
 	for p := range m.getData() {
-		if strings.HasPrefix(p, path) {
+		if p == path || strings.HasPrefix(p, path+FilePathSeparator) {
 			m.mu.RUnlock()
 			m.mu.Lock()
 			delete(m.getData(), p)

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

@@ -268,13 +268,7 @@ func (f *UnionFile) WriteString(s string) (n int, err error) {
 	return 0, BADFD
 }
 
-func copyToLayer(base Fs, layer Fs, name string) error {
-	bfh, err := base.Open(name)
-	if err != nil {
-		return err
-	}
-	defer bfh.Close()
-
+func copyFile(base Fs, layer Fs, name string, bfh File) error {
 	// First make sure the directory exists
 	exists, err := Exists(layer, filepath.Dir(name))
 	if err != nil {
@@ -315,3 +309,23 @@ func copyToLayer(base Fs, layer Fs, name string) error {
 	}
 	return layer.Chtimes(name, bfi.ModTime(), bfi.ModTime())
 }
+
+func copyToLayer(base Fs, layer Fs, name string) error {
+	bfh, err := base.Open(name)
+	if err != nil {
+		return err
+	}
+	defer bfh.Close()
+
+	return copyFile(base, layer, name, bfh)
+}
+
+func copyFileToLayer(base Fs, layer Fs, name string, flag int, perm os.FileMode) error {
+	bfh, err := base.OpenFile(name, flag, perm)
+	if err != nil {
+		return err
+	}
+	defer bfh.Close()
+
+	return copyFile(base, layer, name, bfh)
+}