pkgsrc/mk/extract/extract

["Helge Mühlmeier" <H_Muehlmeier%gmx.de@localhost>]

Hi,

I have a question about pkgsrc/mk/extract/extract- script...

I tried to extract "OpenFoam-1.7.1.gtgz" for work on a package but that didn't 
work directly.
After I modified pkgsrc/mk/extract/extract it seems to work but I don't know if 
that is a _clean_ way to do the job.
If that _is_ a clean way could that be imported into pkgsrc?

Backround:
My question at the software-distributor was answered as following...

------------------
> why are you use  *.gtgz  instead  *.tgz  or  *.tar.gz  for your 
> OpenFoam-archive?

Because we specifically require the use of GNU tar rather than the system tar on
Solaris and other non-GNU UNIX operating systems.  The reason for this is that
ancient tar implementations have a built-in path length limit of typically 99
characters and this is not sufficient for packing OpenFOAM.  If SUN, IBM, HP
etc. can be persuaded to give-up their legacy UNIX operating systems and adopt
Linux or at least drop their ancient UNIX utilities and ship the GNU versions
these issues will disappear.

> I want work on a package that make OpenFoam available for pkgsrc-users.

The name of the file is simply a convention, you can unpack it with:

tar -xzf file.gtgz
-----------------

I attached a diff with my changes from pkgsrc/mk/extract/extract to this mail.

Greetings,
Helge
-- 
GMX DSL SOMMER-SPECIAL: Surf & Phone Flat 16.000 fÃr nur 19,99 Euro/mtl.!*
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--- extract     2010-09-04 11:03:14.000000000 +0200
+++ extract.bak 2010-09-04 11:01:53.000000000 +0200
@@ -179,7 +179,7 @@ esac
 
 # Derive the compression format of the archive based on the file extension.
 case "$distfile" in
-*.gz|*.tgz|*.gtgz|*.z)                 _cformat=gzip ;;
+*.gz|*.tgz|*.z)                        _cformat=gzip ;;
 *.bz2|*.tbz|*.tbz2|*.bz)       _cformat=bzip ;;
 *.lzma)                                _cformat=lzma ;;
 *.xz)                          _cformat=xz ;;
@@ -202,7 +202,7 @@ esac
 
 # Derive the format of the archive based on the file extension.
 case "$distfile" in
-*.tar.gz|*.tgz|*-tar.gz|*_tar.gz|*.tar.bz2|*.tbz|*.tbz2|*.tar.lzma|*.tar.xz|*.tar.Z|*.tar.z|*.tar|*.tar.bz|*.gtgz)
+*.tar.gz|*.tgz|*-tar.gz|*_tar.gz|*.tar.bz2|*.tbz|*.tbz2|*.tar.lzma|*.tar.xz|*.tar.Z|*.tar.z|*.tar|*.tar.bz)
                _format=tar ;;
 *.cpio|*.cpio.gz|*.cpio.bz2)
                _format=cpio ;;