Bump github.com/containers/storage from 1.19.2 to 1.20.1

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.19.2 to 1.20.1.
- [Release notes](https://github.com/containers/storage/releases)
- [Changelog](https://github.com/containers/storage/blob/master/docs/containers-storage-changes.md)
- [Commits](https://github.com/containers/storage/compare/v1.19.2...v1.20.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/storage/pkg/fileutils/fileutils.go

@@ -63,8 +63,6 @@ func NewPatternMatcher(patterns []string) (*PatternMatcher, error) {
 func (pm *PatternMatcher) Matches(file string) (bool, error) {
 	matched := false
 	file = filepath.FromSlash(file)
-	parentPath := filepath.Dir(file)
-	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
 
 	for _, pattern := range pm.patterns {
 		negative := false
@@ -78,13 +76,6 @@ func (pm *PatternMatcher) Matches(file string) (bool, error) {
 			return false, err
 		}
 
-		if !match && parentPath != "." {
-			// Check to see if the pattern matches one of our parent dirs.
-			if len(pattern.dirs) <= len(parentPathDirs) {
-				match, _ = pattern.match(strings.Join(parentPathDirs[:len(pattern.dirs)], string(os.PathSeparator)))
-			}
-		}
-
 		if match {
 			matched = !negative
 		}
@@ -122,8 +113,6 @@ func (m *MatchResult) Excludes() uint {
 // an error. This method is not safe to be called concurrently.
 func (pm *PatternMatcher) MatchesResult(file string) (res *MatchResult, err error) {
 	file = filepath.FromSlash(file)
-	parentPath := filepath.Dir(file)
-	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
 	res = &MatchResult{false, 0, 0}
 
 	for _, pattern := range pm.patterns {
@@ -138,16 +127,6 @@ func (pm *PatternMatcher) MatchesResult(file string) (res *MatchResult, err erro
 			return nil, err
 		}
 
-		if !match && parentPath != "." {
-			// Check to see if the pattern matches one of our parent dirs.
-			if len(pattern.dirs) <= len(parentPathDirs) {
-				match, _ = pattern.match(strings.Join(
-					parentPathDirs[:len(pattern.dirs)],
-					string(os.PathSeparator)),
-				)
-			}
-		}
-
 		if match {
 			res.isMatched = !negative
 			if negative {
@@ -265,8 +244,7 @@ func (p *Pattern) compile() error {
 			// in golang's filepath.Match
 			regStr += bs + string(ch)
 		} else if ch == '\\' {
-			// escape next char. Note that a trailing \ in the pattern
-			// will be left alone (but need to escape it)
+			// escape next char.
 			if sl == bs {
 				// On windows map "\" to "\\", meaning an escaped backslash,
 				// and then just continue because filepath.Match on
@@ -277,14 +255,14 @@ func (p *Pattern) compile() error {
 			if scan.Peek() != scanner.EOF {
 				regStr += bs + string(scan.Next())
 			} else {
-				regStr += bs
+				return filepath.ErrBadPattern
 			}
 		} else {
 			regStr += string(ch)
 		}
 	}
 
-	regStr += "$"
+	regStr += "(/.*)?$"
 
 	re, err := regexp.Compile(regStr)
 	if err != nil {

vendor/github.com/containers/storage/pkg/idtools/idtools_unix.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"strings"
 	"sync"
+	"syscall"
 
 	"github.com/containers/storage/pkg/system"
 	"github.com/opencontainers/runc/libcontainer/user"
@@ -26,13 +27,18 @@ func mkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int, mkAll, chown
 	// so that we can chown all of them properly at the end.  If chownExisting is false, we won't
 	// chown the full directory path if it exists
 	var paths []string
-	if _, err := os.Stat(path); err != nil && os.IsNotExist(err) {
+	st, err := os.Stat(path)
+	if err != nil && os.IsNotExist(err) {
 		paths = []string{path}
-	} else if err == nil && chownExisting {
-		// short-circuit--we were called with an existing directory and chown was requested
-		return SafeChown(path, ownerUID, ownerGID)
 	} else if err == nil {
-		// nothing to do; directory path fully exists already and chown was NOT requested
+		if !st.IsDir() {
+			return &os.PathError{Op: "mkdir", Path: path, Err: syscall.ENOTDIR}
+		}
+		if chownExisting {
+			// short-circuit--we were called with an existing directory and chown was requested
+			return SafeChown(path, ownerUID, ownerGID)
+		}
+		// nothing to do; directory exists and chown was NOT requested
 		return nil
 	}
 
@@ -49,7 +55,7 @@ func mkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int, mkAll, chown
 				paths = append(paths, dirPath)
 			}
 		}
-		if err := os.MkdirAll(path, mode); err != nil && !os.IsExist(err) {
+		if err := os.MkdirAll(path, mode); err != nil {
 			return err
 		}
 	} else {

vendor/github.com/containers/storage/pkg/idtools/idtools_windows.go

@@ -9,7 +9,7 @@ import (
 // Platforms such as Windows do not support the UID/GID concept. So make this
 // just a wrapper around system.MkdirAll.
 func mkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int, mkAll, chownExisting bool) error {
-	if err := os.MkdirAll(path, mode); err != nil && !os.IsExist(err) {
+	if err := os.MkdirAll(path, mode); err != nil {
 		return err
 	}
 	return nil