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moveOrCopyFile: avoid panic on --dry-run

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Before this change, changing the case of a file on a case insensitive remote
would fatally panic when `--dry-run` was set, due to `moveOrCopyFile`
attempting to access the non-existent `tmpObj` it (would normally have)
created. After this change, the panic is avoided by skipping this step during
a `--dry-run` (with the usual "skipped as --dry-run is set" log message.)
This commit is contained in:
nielash 2023-10-10 07:21:56 -04:00
parent fd95511091
commit 88e516adee
2 changed files with 21 additions and 0 deletions
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4
fs/operations/operations.go
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@ -1770,6 +1770,10 @@ func moveOrCopyFile(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName str
// move it back to the intended destination. This is required
// to avoid issues with certain remotes and avoid file deletion.
if !cp && fdst.Name() == fsrc.Name() && fdst.Features().CaseInsensitive && dstFileName != srcFileName && strings.EqualFold(dstFilePath, srcFilePath) {
if SkipDestructive(ctx, srcFileName, "rename to "+dstFileName) {
// avoid fatalpanic on --dry-run (trying to access non-existent tmpObj)
return nil
}
// Create random name to temporarily move file to
tmpObjName := dstFileName + "-rclone-move-" + random.String(8)
tmpObjFail, err := fdst.NewObject(ctx, tmpObjName)

17
fs/operations/operations_test.go
View File

@ -997,6 +997,23 @@ func TestCaseInsensitiveMoveFile(t *testing.T) {
r.CheckRemoteItems(t, file2Capitalized)
}
func TestCaseInsensitiveMoveFileDryRun(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
if !r.Fremote.Features().CaseInsensitive {
return
}
ci.DryRun = true
file1 := r.WriteObject(ctx, "hello", "world", t1)
r.CheckRemoteItems(t, file1)
err := operations.MoveFile(ctx, r.Fremote, r.Fremote, "HELLO", file1.Path)
require.NoError(t, err)
r.CheckRemoteItems(t, file1)
}
func TestMoveFileBackupDir(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)