[Bug 806499] Re: xz should warn before overwriting read-only files

[Rolf Leggewie]

OK, I was able to verify it now, made a mistake earlier.  I'll let
somebody else decide if this is desired behaviour.

Steps to reproduce:
$ echo "test" |xz > /tmp/test.txt.xz
$ chmod 444 /tmp/test.txt.xz
$ unxz /tmp/test.txt.xz
$ ls -la /tmp/test.txt*
-r--r--r-- 1 rolf rolf  5 Jun  4 13:06 /tmp/test.txt

gunzip exhibits the same behaviour, by the way.

** Changed in: xz-utils (Ubuntu)
     Assignee: Rolf Leggewie (r0lf) => (unassigned)

** Changed in: xz-utils (Ubuntu)
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/806499

Title:
  xz should warn before overwriting read-only files

Status in xz-utils package in Ubuntu:
  Triaged

Bug description:
  running xz --decompress (unxz) on a readonly file will not show any
  warning before writing over the file and changing the extension.

  This is technically expected behaviour but not sympathetic to the end
  user.

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