NAME
Tie::Gzip - read and write gzip compressed files
SYNOPSIS
require Tie::Gzip;
tie filehandle, 'Tie::Gzip'
tie filehandle, 'Tie::Gzip', mode, filename
tie filehandle, 'Tie::Gzip', filename
tie filehandle, 'Tie::Gzip', \%options
tie filehandle, 'Tie::Gzip', mode, filename, \%options
tie filehandle, 'Tie::Gzip', filename, \%options
tie filehandle, 'Tie::Gzip', \@options
tie filehandle, 'Tie::Gzip', mode, filename, \@options
tie filehandle, 'Tie::Gzip', filename, \@options
DESCRIPTION
The 'Tie::Gzip' module provides a file handle Tie for compressing and uncompressing files using the gzip compression format.
By tieing a filehandle to 'Tie::Gzip' subsequent uses of the file subroutines with the tied filehandle will compress data written to an opened file using gzip compression and decompress data read from an opened file using gzip compression.
If the 'Tie::Gzip' tie receives a filename or mode filename after completing the tie, 'Tie::Gzip' will open filename.
During the tie, Tie::Gzip will first try to load the 'Compress::Zlib' module and package. If successful, 'Tie::Gzip' uses the 'Compress::Zlib' for compressing and decompressing the file data.
If unsuccessful, 'Tie::Gzip' setups up the following pipes to an anticipated GNU 'gzip' site command for compressing and decompressing the file data:
gzip --decompress --stdout {} | # read file data
| gzip --stdout > {} # write file data
where the string '{}' is a placeholder for the filename.
Many sites, especially UNIX Internet Service Providers, will not provide the 'Compress::Zlib' module. Instead they expect the users to make use of a site Unix gzip command.
If neither of these gzip resources are available for a site, 'Tie::Gzip' provides the 'read_pipe' and 'write_pipe' options, to tie to a suitable local site gzip command.
For example, to specify the GNU gzip, provide the following options as either a hash or array reference:
[ read_pipe => 'gzip --decompress --stdout {}',
write_pipe => ' gzip --stdout > {}' ]
The pipe symbol '|' is optional. The 'Tie::Gzip' uses the 'binmode' for all data to and from the read and write pipes. This is equivalent to 'raw' (as oppose to 'cooked') for Unix file drivers and the binary (as oppose to 'text') for Windows file drivers.
The hash reference to the 'Tie::Gzip' data may be obtained as follows:
my $self = tied filehandle;
The 'Tie::Gzip' data hash keys and contents are subject to change without notice expect for
$self->{options}->{read_pipe}
$self->{options}->{write_pipe}
as described above.
Because of the nature of the gzip compression software, the file subroutines have at least the following restrictions:
open
The open command will accept only the '>' and the '<' modes. All
other modes are invalid. The 'Tie::Gzip' tie does provide greatly
limited piping capabilities with the 'read_pipe' and 'write_pipe'
options. Feature creep of reading and writing a compress file is
coming.
seek
The seek is only valid for mode 1, positive seeks when reading a
compress files. Feature creep of seek is comming.
fileno
The file no when using "Compress::Zlib" is undefined.
binmode
This subroutine does nothing since the tied 'Tie::Gzip' file handle
is always in the binmode.
REQUIREMENTS
For these requirements the pharse 'Tie Gzip file handle' will mean a file handle successfully tied to 'Tie::Gzip' that uses either the 'Compress::Zlib' module or the a site system GNU gzip executable to compress and decompress the file data. Thus, the data written to a file using a 'Tie::Gzip file handle' should be in accordance with RFC 1951 and RFC 1952.
The 'Tie::Gzip' requirements are as follows:
data integrity [1]
The data read back from a file using a 'Tie::Gzip file handle'
shall[1] be the same as the data written to the file using a
'Tie::Gzip file handle'.
interoperability [1]
The data read back from a file using a software unit or executable
program in accordance with RFC 1951 and RFC 1952 shall[1] be the
same as the data written to the same file using a 'Tie::Gzip file
handle'.
interoperability [2]
The data read back from a file using 'Tie::Gzip file handle shall[2]
be the same as the data written to the same file using a software
unit or executable program in accordance with RFC 1951 and RFC 1952.
DEMONSTRATION
#########
# perl Gzip.d
###
~~~~~~ Demonstration overview ~~~~~
Perl code begins with the prompt
=>
The selected results from executing the Perl Code follow on the next lines. For example,
=> 2 + 2
4
~~~~~~ The demonstration follows ~~~~~
=> use File::Package;
=> use File::Copy;
=> use File::SmartNL;
=> my $uut = 'Tie::Gzip'; # Unit Under Test
=> my $fp = 'File::Package';
=> my $snl = 'File::SmartNL';
=> my $loaded;
=> ##################
=> # Load UUT
=> #
=> ###
=> my $errors = $fp->load_package($uut)
=> $errors
''
=> ##################
=> # Tie::Gzip Version $Tie::Gzip::VERSION loaded
=> #
=> ###
=> $loaded = $fp->is_package_loaded($uut)
1
=> ##################
=> # Copy gzip0.htm to gzip1.htm.
=> #
=> ###
=> unlink 'gzip1.htm'
=> copy('gzip0.htm', 'gzip1.htm')
'1'
=> sub gz_decompress
=> {
=> my ($gzip) = shift @_;
=> my $file = 'gzip1.htm';
=>
=> return undef unless open($gzip, "< $file.gz");
=> if( open (FILE, "> $file" ) ) {
=> while( my $line = <$gzip> ) {
=> print FILE $line;
=> }
=> close FILE;
=> close $gzip;
=> unlink 'gzip1.htm.gz';
=> return 1;
=> }
=> 1
=> }
=> sub gz_compress
=> {
=> my ($gzip) = shift @_;
=> my $file = 'gzip1.htm';
=> return undef unless open($gzip, "> $file.gz");
=>
=> if( open(FILE, "< $file") ) {
=> while( my $line = <FILE> ) {
=> print $gzip $line;
=> }
=> close FILE;
=> unlink $file;
=> }
=> close $gzip;
=> }
=> #####
=> # Compress gzip1.htm with gzip software unit of opportunity
=> # Decompress gzip1.htm,gz with gzip software unit of opportunity
=> #
=> tie *GZIP, 'Tie::Gzip';
=> my $tie_obj = tied GZIP;
=> my $gz_package = $tie_obj->{gz_package};
=> my $gzip = \GZIP;
=>
=> #####
=> # Do not skip tests next compress and decompress tests if this expression fails.
=> # Passing the next compress and decompress tests is mandatory to ensure at
=> # least one gzip is available and works
=> #
=> my $gzip_opportunity= gz_compress( $gzip );
=> ##################
=> # Compress gzip1.htm with gzip of opportunity. Validate gzip1.htm.gz exists
=> #
=> ###
=> -f 'gzip1.htm.gz'
'1'
=> ##################
=> # Decompress gzip1.htm.gz with gzip of opportunity. Validate gzip1.htm same as gzip0.htm
=> #
=> ###
=> gz_decompress( $gzip )
=> $snl->fin('gzip1.htm') eq $snl->fin('gzip0.htm')
'1'
=> unlink 'gzip1.htm'
QUALITY ASSURANCE
Test Script Design
The "Tie:Gzip" test script performs multiple duties. The "Tie::Gzip" program module finds a gzip software unit of opportunity looking for both Perl "Compress::Zlib" program module and a site operating system gzip with the following GNU syntax:
read_pipe => 'gzip --decompress --stdout {}',
write_pipe => 'gzip --stdout > {}',
If a particular site does not support both gzips, those tests, such as the interoperatability between different gzip software units, are skipped.
For quality assurance, the "Tie::Gzip" test is performed on a site that supports both. For installation test, only one is needed for a pass. However if an installation supports both, both should pass in order to meet the interoperatability requirement for the "Tie::Gzip" module. This of course does not test that files produced from gzip software units outside the site are interoperatable. However, since the site gzip used for the quality assurance test meets the RFC 1951 and RFC 1952, the chances are that the gzip outside the site is broken if "Tie::Gzip" cannot decompress it.
Test Report
=> perl Gzip.t
1..13 # Running under perl version 5.006001 for MSWin32 # Win32::BuildNumber 635 # Current time local: Fri Apr 16 15:59:27 2004 # Current time GMT: Fri Apr 16 19:59:27 2004 # Using Test.pm version 1.24 # Test::Tech : 1.19 # Data::Secs2 : 1.17 # Data::SecsPack: 0.02 # =cut ok 1 - UUT not loaded ok 2 - Load UUT ok 3 - Tie::Gzip Version 1.14 loaded ok 4 - Ensure gzip.t can access gzip0.htm ok 5 - Copy gzip0.htm to gzip1.htm. ok 6 - Compress gzip1.htm with gzip of opportunity. Validate gzip1.htm.gz exists ok 7 - Decompress gzip1.htm.gz with gzip of opportunity. Validate gzip1.htm same as gzip0.htm ok 8 - Compress gzip1.htm with site os GNU gzip. Validate gzip1.htm.gz exists ok 9 - Decompress with site os GNU gzip. Validate gzip1.htm same as gzip0.htm ok 10 - Compress gzip1.htm with Compress::Zlib. Validate gzip1.htm.gz exists. ok 11 - Decompress gzip1.htm.gz with site OS GNU gzip. Validate gzip1.htm same as gzip0.htm ok 12 - Compress gzip1.htm with site os GNU gzip. Validate gzip1.htm.gz exists. ok 13 - Decompress gzip1.htm.gz with Compress::Zlib. Validate gzip1.htm same as gzip0.htm. # Passed : 13/13 100%
Test Script Software and Operation
Running the test script 'Gzip.t' found in the "Tie-Gzip-$VERSION.tar.gz" distribution file verifies the requirements for this module.
All testing software and documentation stems from the Software Test Description (STD) program module 't::Tie::Gzip', found in the distribution file "Tie-Gzip-$VERSION.tar.gz".
The 't::Tie::Gzip' STD POD contains a tracebility matix between the requirements established above for this module, and the test steps identified by a 'ok' number from running the 'Gzip.t' test script.
The t::Tie::Gzip' STD program module '__DATA__' section contains the data to perform the following:
To perform all the above, prepare and run the automation software as
"Test_STDmaker-$VERSION.tar.gz' in the site operating system executable path only if it is not in the executable path
tmake -test_verbose -replace -run -pm=t::Tie::Gzip
NOTES
RELATED MODULES
The package 'CPAN::Tarzip::TIEHANDLE' buried deep in the 'CPAN' module has a bare bones tie to decompress gzip files. A study of this package proved valuable in identifying some of the pitfalls that the author of this package encountered in his similar endeavor. One issue was that 'Compress::Zlib' gzip subroutines/methods will return data entact from a file that is not compress as well as compress gzip file contents without any signaling of the differences in the raw file contents.
This 'Compress::Gzip' module follows the overall direction of 'CPAN::Tarzip::TIEHANDLE' in handling this issue with a different code implementation.
Another related module is the 'PerlIO::gzip' module that implements the gzip file disciplines. Gzip file disciplines are available in the newer version of Perls. Altough the C code was not examined for this module, there appears in the POD a somewhat different approach to processing the file content that is not gzip compressed. There is a lot of gzip header checking and whatever.
Many of the older Perls in wide spread use do not support file disciplines.
head2 FEEDBACK
From: Mark.Scarton@FranklinCovey.com Date: Thu, 19 Feb 2004 17:23:37 -0700
In the 'lib/Tie/Gzip.pm' module of the Tie-Gzip-0.01 package, the open of the pipe ("gzip --decompress --stdout |") is failing due to the reference to $! in the conditional. As a test, I cleared $! before issuing the open call as follows:
Line 124:
###############
# Some perls will return a glob and a warning
# for certain pipe errors such as the command
# not a recognized command
#
$! = 0; ### MAS ###
my $success = open PIPE, $pipe;
if($! || !$success) {
warn "Could not pipe $pipe: $!\n";
$self->CLOSE;
return undef;
}
Line 167:
###############
# Some perls will return a glob and a warning
# for certain pipe errors such as the command
# not a recognized command
#
$! = 0; ### MAS ###
my $success = open PIPE, $pipe;
if($! || !$success) {
warn "Could not pipe $pipe: $!\n";
$self->CLOSE;
return undef;
}
This works. Prior to making this change, test 6 of Gzip.t would fail.
According to the Learning Perl O'Reilly book,
"But if you use die to indicate an error that is not the failure of a system request, don't include $!, since it will generally hold an unrelated message left over from something Perl did internally. It will hold a useful value only immediately after a failed system request. A successful request won't leave anything useful there."
So $! is only sourced when a system error occurs and it is not cleared prior to the call. If no error occurs, the value is indeterminate.
head2 FILES
The installation of the "Tie-Gzip-$VERSION.tar.gz" distribution file installs the 'Docs::Site_SVD::Tie_Gzip' SVD program module.
The __DATA__ data section of the 'Docs::Site_SVD::Tie_Gzip' contains all the necessary data to generate the POD section of 'Docs::Site_SVD::Tie_Gzip' and the "Tie-Gzip-$VERSION.tar.gz" distribution file.
To make use of the 'Docs::Site_SVD::Tie_Gzip' SVD program module, perform the following:
"ExtUtils-SVDmaker-$VERSION.tar.gz' in the site operating system executable path only if it is not in the executable path
vmake readme_html all -pm=Docs::Site_SVD::Tie_Gzip -verbose
AUTHOR
The holder of the copyright and maintainer is
<support@SoftwareDiamonds.com>
COPYRIGHT NOTICE
Copyrighted (c) 2002 Software Diamonds
All Rights Reserved
BINDING REQUIREMENTS NOTICE
Binding requirements are indexed with the pharse 'shall[dd]' where dd is an unique number for each header section. This conforms to standard federal government practices, 490A (the 3.2.3.6 entry in the STD490A manpage). In accordance with the License for 'Tie::Gzip', Software Diamonds is not liable for meeting any requirement, binding or otherwise.
LICENSE
Software Diamonds permits the redistribution and use in source and binary forms, with or without modification, provided that the following conditions are met:
1 Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2 Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
SOFTWARE DIAMONDS, http::www.softwarediamonds.com, PROVIDES THIS SOFTWARE 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOFTWARE DIAMONDS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING USE OF THIS SOFTWARE, EVEN IF ADVISED OF NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE POSSIBILITY OF SUCH DAMAGE.
SEE ALSO
the CSPAN manpage, the PerlIO::gzip manpage, the Test::STDmaker manpage, the Docs::US_DOD::STD manpage, the ExtUtils::SVDmaker manpage, the Docs::US_DOD::SVD manpage, the gzip manpage, rfc 1952 (the gzip file format specification), rfc 1951 (DEFLATE compressed data format specification)
Title Page
Software Version Description
for
Tie::Gzip - gzip with a small memory footprint
Revision: E
Version: 0.06
Date: 2004/04/16
Prepared for: General Public
Prepared by: SoftwareDiamonds.com E<lt>support@SoftwareDiamonds.comE<gt>
Copyright: copyright © 2003 Software Diamonds
Classification: NONE
1.0 SCOPE
This paragraph identifies and provides an overview of the released files.
1.1 Identification
This release, identified in 3.2, is a collection of Perl modules that extend the capabilities of the Perl language.
1.2 System overview
The 'Tie::Gzip' module provides a file handle Tie for compressing and uncompressing files using the gzip format.
By tieing a filehandle to 'Tie::Gzip' subsequent uses of the file subroutines with the tied filehandle will compress data written to an opened file using gzip compression and decompress data read from an opened file using gzip compression.
If the 'Tie::Gzip' tie receives a filename or mode filename after completing the tie, 'Tie::Gzip' will open filename.
During the tie, Tie::Gzip will first try to load the 'Compress::Zlib' module and package. If successful, 'Tie::Gzip' uses the 'Compress::Zlib' for compressing and decompressing the file data.
If unsuccessful, 'Tie::Gzip' setups up the following pipes to an anticipated GNU 'gzip' site command for compressing and decompressing the file data:
gzip --decompress --stdout {} | # read file data
| gzip --stdout > {} # write file data
where the string '{}' is a placeholder for the filename.
1.3 Document overview.
This document releases Tie::Gzip version 0.06 providing a description of the inventory, installation instructions and other information necessary to utilize and track this release.
3.0 VERSION DESCRIPTION
All file specifications in this SVD use the Unix operating system file specification.
3.1 Inventory of materials released.
This document releases the file
Tie-Gzip-0.06.tar.gz
found at the following repository(s):
http://www.softwarediamonds/packages/
http://www.perl.com/CPAN/authors/id/S/SO/SOFTDIA/
Restrictions regarding duplication and license provisions are as
Copyright.
copyright © 2003 Software Diamonds
Copyright holder contact.
603 882-0846 E<lt>support@SoftwareDiamonds.comE<gt>
License.
Software Diamonds permits the redistribution and use in source and
binary forms, with or without modification, provided that the
following conditions are met:
1 Redistributions of source code, modified or unmodified must
retain the above copyright notice, this list of conditions and
the following disclaimer.
2 Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
SOFTWARE DIAMONDS, http://www.SoftwareDiamonds.com, PROVIDES THIS
SOFTWARE 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
SOFTWARE DIAMONDS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL,EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING USE OF THIS SOFTWARE, EVEN IF ADVISED OF
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE POSSIBILITY
OF SUCH DAMAGE.
3.2 Inventory of software contents
The content of the released, compressed, archieve file, consists of the following files:
file version date comment
------------------------------------------------------------ ------- ---------- ------------------------
lib/Docs/Site_SVD/Tie_Gzip.pm 0.06 2004/04/16 revised 0.05
MANIFEST 0.06 2004/04/16 generated, replaces 0.05
Makefile.PL 0.06 2004/04/16 generated, replaces 0.05
README 0.06 2004/04/16 generated, replaces 0.05
lib/Tie/Gzip.pm 1.15 2004/04/16 revised 1.14
t/Tie/Gzip.pm 0.05 2004/04/16 revised 0.04
t/Tie/Gzip.t 0.04 2004/04/16 revised 0.03
t/Tie/Gzip.d 0.04 2004/04/16 revised 0.03
t/Tie/File/Package.pm 1.16 2004/04/16 unchanged
t/Tie/File/SmartNL.pm 1.13 2004/04/16 unchanged
t/Tie/Test/Tech.pm 1.2 2004/04/16 revised 1.19
t/Tie/Data/Secs2.pm 1.17 2004/04/16 revised 1.16
t/Tie/Data/SecsPack.pm 0.02 2004/04/16 unchanged
t/Tie/gzip0.htm 0.06 2004/04/16 unchanged
3.3 Changes
Changes are as follows
Tie::Gzip-0.01
Originated
Tie::Gzip-0.02
Installed Mark Scarton's engineering change request per below
e-mail:
From: Mark.Scarton@FranklinCovey.com Date: Thu, 19 Feb 2004 17:23:37
-0700
In the 'lib/Tie/Gzip.pm' module of the Tie-Gzip-0.01 package, the
open of the pipe ("gzip --decompress --stdout |") is failing due to
the reference to $! in the conditional. As a test, I cleared $!
before issuing the open call as follows:
Line 124:
###############
# Some perls will return a glob and a warning
# for certain pipe errors such as the command
# not a recognized command
#
$! = 0; ### MAS ###
my $success = open PIPE, $pipe;
if($! || !$success) {
warn "Could not pipe $pipe: $!\n";
$self->CLOSE;
return undef;
}
Line 167:
###############
# Some perls will return a glob and a warning
# for certain pipe errors such as the command
# not a recognized command
#
$! = 0; ### MAS ###
my $success = open PIPE, $pipe;
if($! || !$success) {
warn "Could not pipe $pipe: $!\n";
$self->CLOSE;
return undef;
}
This works. Prior to making this change, test 6 of Gzip.t would
fail.
According to the Learning Perl O'Reilly book,
"But if you use die to indicate an error that is not the failure of
a system request, don't include $!, since it will generally hold an
unrelated message left over from something Perl did internally. It
will hold a useful value only immediately after a failed system
request. A successful request won't leave anything useful there."
So $! is only sourced when a system error occurs and it is not
cleared prior to the call. If no error occurs, the value is
indeterminate.
Tie::Gzip-0.03
prerequisite program because loaded the Data::Secs2 test modules to
tlib\Test instead of tlib\Data.
Tie::Gzip-0.04
The lastest build of Test::STDmaker expects the test library in the
same directory as the test script. Coordiated with the lastest
Test::STDmaker by moving the test library from tlib to t/Tie, the
same directory as the test script and deleting the test library
File::TestPath program module.
http://ppm.activestate.com/BuildStatus/5.8-linux/linux-5.8/Tie-Gzip-
0.03.txt
has the following failures:
PERL_DL_NONLAZY=1 /home/cpanrun/tmp/5.8.0/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/Tie/Gzip.t
t/Tie/Gzip....Could not pipe | gzip --stdout > Gzip1.htm.gz:Illegal seek
Could not pipe gzip --decompress --stdout Gzip1.htm.gz |: Illegal seek
Could not pipe gzip --decompress --stdout Gzip1.htm.gz |: Illegal seek
# Cannot open <Gzip1.htm
# Test 9 got: '' (t/Tie/Gzip.t at line 319)
# Expected: '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
[snip]
FAILED test 9
Failed 1/11 tests, 90.91% okay (less 5 skipped tests: 5 okay, 45.45%)
Failed 1/1 test scripts, 0.00% okay. 1/11 subtests failed, 90.91% okay.
Failed Test Stat Wstat Total Fail Failed List of Failed
-------------------------------------------------------------------------------
t/Tie/Gzip.t 11 1 9.09% 9
5 subtests skipped.
The test script is not right and this is a false failure. The test
script uses the <Test:Tech> features to force the "ok" and "skip" to
perform a skip. However, this does not work for Perl code outside
the "ok" and "skip" subroutines. Added test code to skip outside the
"ok" and "skip" subroutines.
Tie::Gzip-0.05
The distribution "Tie::Gzip-0.04" failed acrossed many systems. Very
strange since it passes as follows:
PASSED:
# Running under perl version 5.006001 for MSWin32
# Win32::BuildNumber 635
FAILED:
t/Tie/Gzip....Bareword "gz_package" not allowed while "strict subs" in use at t/Tie/Gzip.t line 265.
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=linux, osvers=2.4.22-4tr, archname=i586-linux
Summary of my perl5 (revision 5.0 version 8 subversion 1) configuration:
Platform:
osname=solaris, osvers=2.8, archname=sun4-solaris
Summary of my perl5 (revision 5.0 version 8 subversion 3) configuration:
Platform:
osname=solaris, osvers=2.8, archname=sun4-solaris-thread-multi
Summary of my perl5 (revision 5.0 version 8 subversion 3) configuration:
Platform:
osname=darwin, osvers=7.2.0, archname=ppc-darwin-thread-multi
The failure is real. Placed the ommitted $ in front of gz_package
and try again.
Tie::Gzip-0.06
All the Unix machines are failing as follows:
Use of uninitialized value in string eq at t/Tie/Gzip.t line 243.
# Cannot open <gzip0.htm
Use of uninitialized value in string eq at t/Tie/Gzip.t line 296.
# Cannot open <gzip0.htm
FAILED tests 9, 11
Failed 2/11 tests, 81.82% okay
The reason is the the test script uses "gzip0.htm" while the
distribution file is t/Tie/Gzip0.htm. The difference in capitalition
causes failures on operation system with case sensitive file
specifitions.
Change the distribution file to "t/Tie/gzip0.htm". Added steps to
the beginning of the test scripts to ensure that "t/Tie/Gzip.t" can
read "gzip0.htm" so that do not have to spent time analyzing what
went work.
3.4 Adaptation data.
This installation requires that the installation site has the Perl programming language installed. There are no other additional requirements or tailoring needed of configurations files, adaptation data or other software needed for this installation particular to any installation site.
3.5 Related documents.
There are no related documents needed for the installation and test of this release.
3.6 Installation instructions.
Instructions for installation, installation tests and installation support are as follows:
Installation Instructions.
To installed the release file, use the CPAN module pr PPM module in
the Perl release or the INSTALL.PL script at the following web site:
http://packages.SoftwareDiamonds.com
Follow the instructions for the the chosen installation software.
If all else fails, the file may be manually installed. Enter one of
the following repositories in a web browser:
http://www.softwarediamonds/packages/
http://www.perl.com/CPAN/authors/id/S/SO/SOFTDIA/
Right click on 'Tie-Gzip-0.06.tar.gz' and download to a temporary
installation directory. Enter the following where $make is 'nmake'
for microsoft windows; otherwise 'make'.
gunzip Tie-Gzip-0.06.tar.gz
tar -xf Tie-Gzip-0.06.tar
perl Makefile.PL
$make test
$make install
On Microsoft operating system, nmake, tar, and gunzip must be in the
exeuction path. If tar and gunzip are not install, download and
install unxutils from
http://packages.softwarediamonds.com
Prerequistes.
None.
Security, privacy, or safety precautions.
None.
Installation Tests.
Most Perl installation software will run the following test
script(s) as part of the installation:
t/Tie/Gzip.t
Installation support.
If there are installation problems or questions with the
installation contact
603 882-0846 E<lt>support@SoftwareDiamonds.comE<gt>
3.7 Possible problems and known errors
There are no known open issues.
4.0 NOTES
The following are useful acronyms:
.d extension for a Perl demo script file
.pm extension for a Perl Library Module
.t extension for a Perl test script file
2.0 SEE ALSO
Docs::US_DOD::SVD
http://www.softwarediamonds/packages/ Docs-US_DOD-STD2167A-X.XX.tar.gz
http://www.perl.com/CPAN/authors/id/S/SO/SOFTDIA/ Docs-US_DOD-STD2167A-X.XX.tar.gz