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lib/fs: Fix root path handling for Windows (fixes #8778)

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Co-authored-by: Jakob Borg <jakob@kastelo.net>
This commit is contained in:
Ross Smith II 2023-05-03 10:51:24 +02:00 committed by Jakob Borg
parent 1103a27337
commit 3adfe2f91f
2 changed files with 30 additions and 11 deletions
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12
lib/fs/basicfs.go
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@ -51,8 +51,10 @@ type BasicFilesystem struct {
groupCache *groupCache
}
type userCache = valueCache[string, *user.User]
type groupCache = valueCache[string, *user.Group]
type (
userCache = valueCache[string, *user.User]
groupCache = valueCache[string, *user.Group]
)
func newBasicFilesystem(root string, opts ...Option) *BasicFilesystem {
if root == "" {
@ -62,11 +64,11 @@ func newBasicFilesystem(root string, opts ...Option) *BasicFilesystem {
// The reason it's done like this:
// C: -> C:\ -> C:\ (issue that this is trying to fix)
// C:\somedir -> C:\somedir\ -> C:\somedir
// C:\somedir\ -> C:\somedir\\ -> C:\somedir
// C:\somedir\ -> C:\somedir\ -> C:\somedir
// This way in the tests, we get away without OS specific separators
// in the test configs.
sep := string(filepath.Separator)
root = filepath.Dir(root + sep)
root = filepath.Clean(filepath.Dir(root + sep))
// Attempt tilde expansion; leave unchanged in case of error
if path, err := ExpandTilde(root); err == nil {
@ -215,7 +217,7 @@ func (f *BasicFilesystem) DirNames(name string) ([]string, error) {
if err != nil {
return nil, err
}
fd, err := os.OpenFile(name, OptReadOnly, 0777)
fd, err := os.OpenFile(name, OptReadOnly, 0o777)
if err != nil {
return nil, err
}

27
lib/fs/basicfs_windows_test.go
View File

@ -12,29 +12,46 @@ package fs
import (
"os"
"path/filepath"
"runtime"
"strings"
"syscall"
"testing"
)
func TestWindowsPaths(t *testing.T) {
testCases := []struct {
type testCase struct {
input string
expectedRoot string
expectedURI string
}{
}
testCases := []testCase{
{`e:`, `\\?\e:\`, `e:\`},
{`e:\`, `\\?\e:\`, `e:\`},
{`e:\\`, `\\?\e:\`, `e:\`},
{`\\?\e:`, `\\?\e:\`, `e:\`},
{`\\?\e:\`, `\\?\e:\`, `e:\`},
{`\\?\e:\\`, `\\?\e:\`, `e:\`},
{`e:\x`, `\\?\e:\x`, `e:\x`},
{`e:\x\`, `\\?\e:\x`, `e:\x`},
{`e:\x\\`, `\\?\e:\x`, `e:\x`},
{`\\192.0.2.22\network\share`, `\\192.0.2.22\network\share`, `\\192.0.2.22\network\share`},
}
for _, testCase := range testCases {
if runtime.Version() >= "go1.20" {
testCases = append(testCases,
testCase{`\\.\e:`, `\\.\e:\`, `e:\`},
testCase{`\\.\e:\`, `\\.\e:\`, `e:\`},
testCase{`\\.\e:\\`, `\\.\e:\`, `e:\`},
)
}
for i, testCase := range testCases {
fs := newBasicFilesystem(testCase.input)
if fs.root != testCase.expectedRoot {
t.Errorf("root %q != %q", fs.root, testCase.expectedRoot)
t.Errorf("test %d: root: expected `%s`, got `%s`", i, testCase.expectedRoot, fs.root)
}
if fs.URI() != testCase.expectedURI {
t.Errorf("uri %q != %q", fs.URI(), testCase.expectedURI)
t.Errorf("test %d: uri: expected `%s`, got `%s`", i, testCase.expectedURI, fs.URI())
}
}