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Re: [PATCH for-4.20] mktarball: Drop double-processing of the archive


  • To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 13 Nov 2025 14:12:46 +0100
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  • Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 13 Nov 2025 13:12:52 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 13.11.2025 14:01, Andrew Cooper wrote:
> This is a partial backport of commit 63ebd0e9649e ("releases: use newer
> compression methods for tarballs"), but keeping gz as the only compression
> method.
> 
> In addition to efficiency, this causes the tarball to use root/root ownership,
> rather than leak whomever produced the tarball.

I don't understand this part. Isn't the ownership whatever "git archive" 
reports?
I have to admit though ...

> --- a/tools/misc/mktarball
> +++ b/tools/misc/mktarball
> @@ -5,14 +5,6 @@
>  # Takes 2 arguments, the path to the dist directory and the version
>  set -ex
>  
> -function git_archive_into {
> -    mkdir -p "$2"
> -
> -    git --git-dir="$1"/.git \
> -     archive --format=tar HEAD | \
> -     tar Cxf "$2" -

... that I'm unaware of what the C here does. It can't be the same as -C, and 
the
--help output of the GNU tar that I checked doesn't mention anything else at 
all.

Jan



 


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