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vfs: fix renamed files not being uploaded with --vfs-cache-mode minimal

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Before this change files that were in the cache and renamed with
--vfs-cache-mode minimal weren't renamed at all.

This fixes the problem and adds tests for all the different
combinations of cache modes and in and out of the cache.
This commit is contained in:
Nick Craig-Wood 2020-07-08 11:40:41 +01:00
parent 2adc057d95
commit 126efaadcc
2 changed files with 38 additions and 13 deletions
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4
vfs/file.go
View File

@ -241,8 +241,8 @@ func (f *File) rename(ctx context.Context, destDir *Dir, newName string) error {
CacheMode := d.vfs.Opt.CacheMode
if writing &&
(CacheMode < vfscommon.CacheModeMinimal ||
(CacheMode == vfscommon.CacheModeMinimal && !f.d.vfs.cache.Exists(f.Path()))) {
fs.Debugf(f.Path(), "File is currently open, delaying rename %p", f)
(CacheMode == vfscommon.CacheModeMinimal && !f.d.vfs.cache.Exists(oldPath))) {
fs.Debugf(oldPath, "File is currently open, delaying rename %p", f)
f.mu.Lock()
f.pendingRenameFun = renameCall
f.mu.Unlock()

47
vfs/file_test.go
View File

@ -2,6 +2,7 @@ package vfs
import (
"context"
"fmt"
"io/ioutil"
"os"
"testing"
@ -243,7 +244,7 @@ func TestFileOpen(t *testing.T) {
assert.Equal(t, EPERM, err)
}
func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
func testFileRename(t *testing.T, mode vfscommon.CacheMode, inCache bool, forceCache bool) {
r, vfs, file, item, cleanup := fileCreate(t, mode)
defer cleanup()
@ -254,8 +255,22 @@ func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
rootDir, err := vfs.Root()
require.NoError(t, err)
// force the file into the cache if required
if forceCache {
// write the file with read and write
fd, err := file.Open(os.O_RDWR | os.O_CREATE | os.O_TRUNC)
require.NoError(t, err)
n, err := fd.Write([]byte("file1 contents"))
require.NoError(t, err)
require.Equal(t, 14, n)
err = fd.Close()
require.NoError(t, err)
}
// check file in cache
if mode != vfscommon.CacheModeOff {
if inCache {
// read contents to get file in cache
fileCheckContents(t, file)
assert.True(t, vfs.cache.Exists(item.Path))
@ -274,7 +289,7 @@ func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
fstest.CheckItems(t, r.Fremote, item)
// check file in cache
if mode != vfscommon.CacheModeOff {
if inCache {
assert.True(t, vfs.cache.Exists(item.Path))
}
@ -290,7 +305,7 @@ func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
fstest.CheckItems(t, r.Fremote, item)
// check file in cache
if mode != vfscommon.CacheModeOff {
if inCache {
assert.True(t, vfs.cache.Exists(item.Path))
}
@ -308,7 +323,7 @@ func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
newItem := fstest.NewItem("newLeaf", string(newContents), item.ModTime)
// check file has been renamed immediately in the cache
if mode != vfscommon.CacheModeOff {
if inCache {
assert.True(t, vfs.cache.Exists("newLeaf"))
}
@ -326,10 +341,20 @@ func testFileRename(t *testing.T, mode vfscommon.CacheMode) {
}
func TestFileRename(t *testing.T) {
t.Run("CacheModeOff", func(t *testing.T) {
testFileRename(t, vfscommon.CacheModeOff)
})
t.Run("CacheModeFull", func(t *testing.T) {
testFileRename(t, vfscommon.CacheModeFull)
})
for _, test := range []struct {
mode vfscommon.CacheMode
inCache bool
forceCache bool
}{
{mode: vfscommon.CacheModeOff, inCache: false},
{mode: vfscommon.CacheModeMinimal, inCache: false},
{mode: vfscommon.CacheModeMinimal, inCache: true, forceCache: true},
{mode: vfscommon.CacheModeWrites, inCache: false},
{mode: vfscommon.CacheModeWrites, inCache: true, forceCache: true},
{mode: vfscommon.CacheModeFull, inCache: true},
} {
t.Run(fmt.Sprintf("%v,forceCache=%v", test.mode, test.forceCache), func(t *testing.T) {
testFileRename(t, test.mode, test.inCache, test.forceCache)
})
}
}