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os: SMB not respecting calls to os.Chtimes (from windows) #33886

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spf13 opened this issue Aug 27, 2019 · 1 comment

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@spf13
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@spf13 spf13 commented Aug 27, 2019

Mentioned in #31880

What version of Go are you using (go version)?

$ go version go1.12.7 windows/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env

amd64
windows

What did you do?

I wrote a program that copies media files from one location to another and sets the ctime and mtime to the original file timestamp. The program copies a file and changes the date using io.Copy(destFile, srcFile) then calls os.Chtimes(dest, t.AccessTime(), t.ModTime()) to set the dates.

What did you expect to see?

The dates to change to the dates provided... or an error at least. This silently fails.

What did you see instead?

It works appropriately in most cases, but when copying from a windows machine to a Linux SMB server the destination date is always set to now instead of changing to the src date.

It works from Windows to Windows and from Mac to Mac. I haven't tried other combinations yet.

@julieqiu

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@julieqiu julieqiu commented Aug 29, 2019

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