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fs: calculate ModifyWindow each time on the fly instead of relying on global state - see #2319, #2328

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Stefan 2018-06-03 20:45:34 +02:00 committed by GitHub
parent 3ef938ebde
commit 4009fb67c8
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 43 additions and 83 deletions
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6
cmd/cmd.go
View File

@ -196,7 +196,6 @@ func newFsFileAddFilter(remote string) (fs.Fs, string) {
// limit the Fs to a single file.
func NewFsSrc(args []string) fs.Fs {
fsrc, _ := newFsFileAddFilter(args[0])
fs.CalculateModifyWindow(fsrc)
return fsrc
}
@ -217,7 +216,6 @@ func newFsDir(remote string) fs.Fs {
// The argument must point a directory
func NewFsDir(args []string) fs.Fs {
fdst := newFsDir(args[0])
fs.CalculateModifyWindow(fdst)
return fdst
}
@ -225,7 +223,6 @@ func NewFsDir(args []string) fs.Fs {
func NewFsSrcDst(args []string) (fs.Fs, fs.Fs) {
fsrc, _ := newFsFileAddFilter(args[0])
fdst := newFsDir(args[1])
fs.CalculateModifyWindow(fdst, fsrc)
return fsrc, fdst
}
@ -235,7 +232,6 @@ func NewFsSrcDst(args []string) (fs.Fs, fs.Fs) {
func NewFsSrcFileDst(args []string) (fsrc fs.Fs, srcFileName string, fdst fs.Fs) {
fsrc, srcFileName = NewFsFile(args[0])
fdst = newFsDir(args[1])
fs.CalculateModifyWindow(fdst, fsrc)
return fsrc, srcFileName, fdst
}
@ -266,7 +262,6 @@ func NewFsSrcDstFiles(args []string) (fsrc fs.Fs, srcFileName string, fdst fs.Fs
fs.CountError(err)
log.Fatalf("Failed to create file system for destination %q: %v", dstRemote, err)
}
fs.CalculateModifyWindow(fdst, fsrc)
return
}
@ -280,7 +275,6 @@ func NewFsDstFile(args []string) (fdst fs.Fs, dstFileName string) {
log.Fatalf("%q is a directory", args[0])
}
fdst = newFsDir(dstRemote)
fs.CalculateModifyWindow(fdst)
return
}

30
cmd/mountlib/mounttest/fs.go
View File

@ -18,12 +18,10 @@ import (
"time"
_ "github.com/ncw/rclone/backend/all" // import all the backends
"github.com/ncw/rclone/cmd/mountlib"
"github.com/ncw/rclone/fs"
"github.com/ncw/rclone/fs/walk"
"github.com/ncw/rclone/fstest"
"github.com/ncw/rclone/vfs"
"github.com/spf13/cobra"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
@ -49,7 +47,6 @@ func RunTests(t *testing.T, fn MountFn) {
vfs.CacheModeWrites,
vfs.CacheModeFull,
}
t.Run("TestModifyWindow", TestModifyWindow)
run = newRun()
for _, cacheMode := range cacheModes {
run.cacheMode(cacheMode)
@ -410,30 +407,3 @@ func TestRoot(t *testing.T) {
assert.True(t, fi.IsDir())
assert.Equal(t, run.vfs.Opt.DirPerms&os.ModePerm, fi.Mode().Perm())
}
// TestModifyWindow ensures that the modify window is calculated upon running
// the mount cobra command
func TestModifyWindow(t *testing.T) {
// create local remote
remoteName, _, err := fstest.RandomRemoteName(*fstest.RemoteName)
require.NoError(t, err)
// find valid path to mount to
mountPath := findMountPath()
defer func() {
err := os.RemoveAll(mountPath)
require.NoError(t, err)
}()
// no-op mount command, since we only care about FS creation
fakeMount := func(f fs.Fs, mountpoint string) error {
return nil
}
cmd := mountlib.NewMountCommand("modify-window-test", fakeMount)
// running the command should recalculate the modify window. The modify window
// is greater than 0 for all local FS, which is why the test works.
fs.Config.ModifyWindow = 0 * time.Second
cmd.Run(&cobra.Command{}, []string{remoteName, mountPath})
assert.NotEqual(t, 0*time.Second, fs.Config.ModifyWindow)
}

21
fs/fs.go
View File

@ -862,23 +862,20 @@ func FileExists(fs Fs, remote string) (bool, error) {
return true, nil
}
// CalculateModifyWindow works out modify window for Fses passed in -
// sets Config.ModifyWindow
//
// This is the largest modify window of all the fses in use, and the
// user configured value
func CalculateModifyWindow(fss ...Fs) {
// GetModifyWindow calculates the maximum modify window between the given Fses
// and the Config.ModifyWindow parameter.
func GetModifyWindow(fss ...Info) time.Duration {
window := Config.ModifyWindow
for _, f := range fss {
if f != nil {
precision := f.Precision()
if precision > Config.ModifyWindow {
Config.ModifyWindow = precision
}
if precision == ModTimeNotSupported {
Infof(f, "Modify window not supported")
return
return ModTimeNotSupported
}
if precision > window {
window = precision
}
}
}
Infof(fss[0], "Modify window is %s", Config.ModifyWindow)
return window
}

10
fs/operations/operations.go
View File

@ -132,16 +132,16 @@ func equal(src fs.ObjectInfo, dst fs.Object, sizeOnly, checkSum bool) bool {
}
// Sizes the same so check the mtime
if fs.Config.ModifyWindow == fs.ModTimeNotSupported {
modifyWindow := fs.GetModifyWindow(src.Fs(), dst.Fs())
if modifyWindow == fs.ModTimeNotSupported {
fs.Debugf(src, "Sizes identical")
return true
}
srcModTime := src.ModTime()
dstModTime := dst.ModTime()
dt := dstModTime.Sub(srcModTime)
ModifyWindow := fs.Config.ModifyWindow
if dt < ModifyWindow && dt > -ModifyWindow {
fs.Debugf(src, "Size and modification time the same (differ by %s, within tolerance %s)", dt, ModifyWindow)
if dt < modifyWindow && dt > -modifyWindow {
fs.Debugf(src, "Size and modification time the same (differ by %s, within tolerance %s)", dt, modifyWindow)
return true
}
@ -1285,7 +1285,7 @@ func NeedTransfer(dst, src fs.Object) bool {
dstModTime := dst.ModTime()
dt := dstModTime.Sub(srcModTime)
// If have a mutually agreed precision then use that
modifyWindow := fs.Config.ModifyWindow
modifyWindow := fs.GetModifyWindow(dst.Fs(), src.Fs())
if modifyWindow == fs.ModTimeNotSupported {
// Otherwise use 1 second as a safe default as
// the resolution of the time a file was

8
fs/operations/operations_test.go
View File

@ -411,7 +411,7 @@ func TestRmdirsNoLeaveRoot(t *testing.T) {
"A3/B3",
"A3/B3/C4",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
require.NoError(t, operations.Rmdirs(r.Fremote, "", false))
@ -427,7 +427,7 @@ func TestRmdirsNoLeaveRoot(t *testing.T) {
"A1/B1",
"A1/B1/C1",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
}
@ -452,7 +452,7 @@ func TestRmdirsLeaveRoot(t *testing.T) {
"A1/B1",
"A1/B1/C1",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
require.NoError(t, operations.Rmdirs(r.Fremote, "A1", true))
@ -464,7 +464,7 @@ func TestRmdirsLeaveRoot(t *testing.T) {
[]string{
"A1",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
}

40
fs/sync/sync_test.go
View File

@ -306,7 +306,7 @@ func TestSyncIgnoreErrors(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -320,7 +320,7 @@ func TestSyncIgnoreErrors(t *testing.T) {
"c",
"d",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
accounting.Stats.ResetCounters()
@ -338,7 +338,7 @@ func TestSyncIgnoreErrors(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -351,7 +351,7 @@ func TestSyncIgnoreErrors(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
}
@ -413,11 +413,11 @@ func TestSyncAfterChangingModtimeOnlyWithNoUpdateModTime(t *testing.T) {
}
func TestSyncDoesntUpdateModtime(t *testing.T) {
if fs.Config.ModifyWindow == fs.ModTimeNotSupported {
t.Skip("Can't run this test on fs which doesn't support mod time")
}
r := fstest.NewRun(t)
defer r.Finalise()
if fs.GetModifyWindow(r.Fremote) == fs.ModTimeNotSupported {
t.Skip("Can't run this test on fs which doesn't support mod time")
}
file1 := r.WriteFile("foo", "foo", t2)
file2 := r.WriteObject("foo", "bar", t1)
@ -546,7 +546,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDir(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -561,7 +561,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDir(t *testing.T) {
"d",
"d/e",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
accounting.Stats.ResetCounters()
@ -579,7 +579,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDir(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -592,7 +592,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDir(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
}
@ -616,7 +616,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDirWithErrors(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -630,7 +630,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDirWithErrors(t *testing.T) {
"c",
"d",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
accounting.Stats.ResetCounters()
@ -649,7 +649,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDirWithErrors(t *testing.T) {
"a",
"c",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
fstest.CheckListingWithPrecision(
t,
@ -665,7 +665,7 @@ func TestSyncAfterRemovingAFileAndAddingAFileSubDirWithErrors(t *testing.T) {
"c",
"d",
},
fs.Config.ModifyWindow,
fs.GetModifyWindow(r.Fremote),
)
}
@ -779,11 +779,11 @@ func TestSyncWithExcludeAndDeleteExcluded(t *testing.T) {
// Test with UpdateOlder set
func TestSyncWithUpdateOlder(t *testing.T) {
if fs.Config.ModifyWindow == fs.ModTimeNotSupported {
t.Skip("Can't run this test on fs which doesn't support mod time")
}
r := fstest.NewRun(t)
defer r.Finalise()
if fs.GetModifyWindow(r.Fremote) == fs.ModTimeNotSupported {
t.Skip("Can't run this test on fs which doesn't support mod time")
}
t2plus := t2.Add(time.Second / 2)
t2minus := t2.Add(time.Second / 2)
oneF := r.WriteFile("one", "one", t1)
@ -887,7 +887,7 @@ func testServerSideMove(t *testing.T, r *fstest.Run, withFilter, testDeleteEmpty
}
if testDeleteEmptyDirs {
fstest.CheckListingWithPrecision(t, r.Fremote, nil, []string{}, fs.Config.ModifyWindow)
fstest.CheckListingWithPrecision(t, r.Fremote, nil, []string{}, fs.GetModifyWindow(r.Fremote))
}
fstest.CheckItems(t, FremoteMove, file2, file1, file3u)
@ -916,7 +916,7 @@ func testServerSideMove(t *testing.T, r *fstest.Run, withFilter, testDeleteEmpty
}
if testDeleteEmptyDirs {
fstest.CheckListingWithPrecision(t, FremoteMove, nil, []string{}, fs.Config.ModifyWindow)
fstest.CheckListingWithPrecision(t, FremoteMove, nil, []string{}, fs.GetModifyWindow(r.Fremote))
}
}

2
fstest/fstest.go
View File

@ -343,7 +343,7 @@ func CheckListing(t *testing.T, f fs.Fs, items []Item) {
// CheckItems checks the fs to see if it has only the items passed in
// using a precision of fs.Config.ModifyWindow
func CheckItems(t *testing.T, f fs.Fs, items ...Item) {
CheckListingWithPrecision(t, f, items, nil, fs.Config.ModifyWindow)
CheckListingWithPrecision(t, f, items, nil, fs.GetModifyWindow(f))
}
// Time parses a time string or logs a fatal error

6
fstest/fstests/fstests.go
View File

@ -302,15 +302,15 @@ func Run(t *testing.T, opt *Opt) {
dir := "dir/subdir"
err := operations.Mkdir(remote, dir)
require.NoError(t, err)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{"dir", "dir/subdir"}, fs.Config.ModifyWindow)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{"dir", "dir/subdir"}, fs.GetModifyWindow(remote))
err = operations.Rmdir(remote, dir)
require.NoError(t, err)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{"dir"}, fs.Config.ModifyWindow)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{"dir"}, fs.GetModifyWindow(remote))
err = operations.Rmdir(remote, "dir")
require.NoError(t, err)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{}, fs.Config.ModifyWindow)
fstest.CheckListingWithPrecision(t, remote, []fstest.Item{}, []string{}, fs.GetModifyWindow(remote))
})
// TestFsListEmpty tests listing an empty directory

3
fstest/run.go
View File

@ -103,7 +103,6 @@ func newRun() *Run {
if err != nil {
r.Fatalf("Failed to make %q: %v", r.LocalName, err)
}
fs.CalculateModifyWindow(r.Fremote, r.Flocal)
return r
}
@ -173,7 +172,7 @@ func NewRun(t *testing.T) *Run {
}
r.Logf = t.Logf
r.Fatalf = t.Fatalf
r.Logf("Remote %q, Local %q, Modify Window %q", r.Fremote, r.Flocal, fs.Config.ModifyWindow)
r.Logf("Remote %q, Local %q, Modify Window %q", r.Fremote, r.Flocal, fs.GetModifyWindow(r.Fremote))
return r
}