mirror of
https://github.com/restic/restic.git
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ff7ef5007e
The ioutil functions are deprecated since Go 1.17 and only wrap another library function. Thus directly call the underlying function. This commit only mechanically replaces the function calls.
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package fs
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import (
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"io"
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"os"
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"testing"
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"time"
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rtest "github.com/restic/restic/internal/test"
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"golang.org/x/sys/unix"
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)
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func TestNoatime(t *testing.T) {
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f, err := os.CreateTemp("", "restic-test-noatime")
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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_ = f.Close()
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err = Remove(f.Name())
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if err != nil {
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t.Fatal(err)
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}
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}()
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// Only run this test on common filesystems that support O_NOATIME.
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// On others, we may not get an error.
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if !supportsNoatime(t, f) {
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t.Skip("temp directory may not support O_NOATIME, skipping")
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}
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// From this point on, we own the file, so we should not get EPERM.
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_, err = io.WriteString(f, "Hello!")
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rtest.OK(t, err)
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_, err = f.Seek(0, io.SeekStart)
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rtest.OK(t, err)
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getAtime := func() time.Time {
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info, err := f.Stat()
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rtest.OK(t, err)
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return ExtendedStat(info).AccessTime
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}
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atime := getAtime()
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err = setFlags(f)
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rtest.OK(t, err)
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_, err = f.Read(make([]byte, 1))
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rtest.OK(t, err)
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rtest.Equals(t, atime, getAtime())
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}
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func supportsNoatime(t *testing.T, f *os.File) bool {
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var fsinfo unix.Statfs_t
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err := unix.Fstatfs(int(f.Fd()), &fsinfo)
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rtest.OK(t, err)
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// The funky cast works around a compiler error on 32-bit archs:
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// "unix.BTRFS_SUPER_MAGIC (untyped int constant 2435016766) overflows int32".
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// https://github.com/golang/go/issues/52061
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typ := int64(uint(fsinfo.Type))
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return typ == unix.BTRFS_SUPER_MAGIC ||
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typ == unix.EXT2_SUPER_MAGIC ||
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typ == unix.EXT3_SUPER_MAGIC ||
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typ == unix.EXT4_SUPER_MAGIC ||
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typ == unix.TMPFS_MAGIC
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}
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