Re: testsuite problems

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Miklos Vajna schrieb:
> On Mon, Sep 17, 2007 at 11:50:32PM +0200, René Scharfe <rene.scharfe@xxxxxxxxxxxxxx> wrote:
>> The failing tests check ZIP file creation, not tar file creation.
>> Perhaps your unzip command works a bit differently from Info-ZIP's?
> 
> $ zip -v
> Copyright (c) 1990-2006 Info-ZIP - Type 'zip "-L"' for software license.
> This is Zip 2.32 (June 19th 2006), by Info-ZIP.
> 
> should this version be ok?

Info-ZIP zip and unzip are two different programs, each with their
own version numbers.

>> Also, what is the difference between t/trash/a and t/trash/d/a after
>> running the test script (that's what test 21 is comparing)?
> 
> $ diff -Naur t/trash/a t/trash/d/a
> diff -Naur t/trash/a/l1 t/trash/d/a/l1
> --- t/trash/a/l1        2007-09-17 23:10:03.000000000 +0200
> +++ t/trash/d/a/l1      2007-09-17 23:10:03.000000000 +0200
> @@ -1 +1 @@
> -simple textfile
> +a
> \ No newline at end of file

Ah!  l1 is a symlink to a.  The target of a symlink is stored as file
content in a ZIP archive and marked with a special flag.  An unzipper
that doesn't understand this flag would create a file containing the
link target's name instead of a symlink pointing to the target.

The unzip on my system says:

  $ unzip -v
  UnZip 5.52 of 28 February 2005, by Ubuntu. Original by Info-ZIP.

  Latest sources and executables are at  ftp://ftp.info-zip.org/pub/infozip/ ;
  see ftp://ftp.info-zip.org/pub/infozip/UnZip.html for other sites.

  Compiled with gcc 4.1.2 (Ubuntu 4.1.2-0ubuntu4) for Unix (Linux ELF) on Mar 31 2007.

  UnZip special compilation options:
          ACORN_FTYPE_NFS
          COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
          SET_DIR_ATTRIB
          TIMESTAMP
          USE_EF_UT_TIME
          USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
          USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
          VMS_TEXT_CONV
          WILD_STOP_AT_DIR
          [decryption, version 2.9 of 05 May 2000]

I suspect you need SET_DIR_ATTRIB in order to extract symlinks.

René
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