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local: Add --local-no-set-modtime option to prevent modtime changes
If this option is enabled, rclone will not set modtime of uploaded files and the backend will return ModTimeNotSupported as its Precision. Normally rclone updates modification time of files after they are done uploading. This can cause permissions issues on Linux platforms when rclone is copying to a CIFS mount where the user rclone is running as does not own the file uploaded. If this option is enabled, rclone will no longer update the modtime after copying a file. See: https://forum.rclone.org/t/chtimes-error-on-local-mounted-copy/17784
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@ -144,6 +144,17 @@ the OS zeros the file. However sparse files may be undesirable as they
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cause disk fragmentation and can be slow to work with.`,
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Default: false,
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Advanced: true,
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}, {
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Name: "no_set_modtime",
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Help: `Disable setting modtime
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Normally rclone updates modification time of files after they are done
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uploading. This can cause permissions issues on Linux platforms when
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the user rclone is running as does not own the file uploaded, such as
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when copying to a CIFS mount owned by another user. If this option is
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enabled, rclone will no longer update the modtime after copying a file.`,
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Default: false,
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Advanced: true,
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}, {
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Name: config.ConfigEncoding,
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Help: config.ConfigEncodingHelp,
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@ -166,6 +177,7 @@ type Options struct {
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CaseSensitive bool `config:"case_sensitive"`
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CaseInsensitive bool `config:"case_insensitive"`
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NoSparse bool `config:"no_sparse"`
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NoSetModTime bool `config:"no_set_modtime"`
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Enc encoder.MultiEncoder `config:"encoding"`
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}
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@ -542,6 +554,10 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
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// Precision of the file system
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func (f *Fs) Precision() (precision time.Duration) {
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if f.opt.NoSetModTime {
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return fs.ModTimeNotSupported
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}
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f.precisionOk.Do(func() {
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f.precision = f.readPrecision()
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})
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@ -878,6 +894,9 @@ func (o *Object) ModTime(ctx context.Context) time.Time {
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// SetModTime sets the modification time of the local fs object
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func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
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if o.fs.opt.NoSetModTime {
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return nil
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}
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var err error
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if o.translatedLink {
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err = lChtimes(o.path, modTime, modTime)
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