Advanced to version 3.18.

Build.PL

@@ -60,10 +60,11 @@ my $build = Module::Build->new(
         "perl"			=> "5.8.0",
     },
     recommends		=> {
-        "File::MMagic"		=> 0,
+        "File::MMagic"			=> 0,
-        "Compress::Zlib"	=> 0,
+        "IO::Compress::Gzip"	=> 0,
-        "Compress::Bzip2"	=> 2,
+        "IO::Compress::Bzip2"	=> 0,
-        "Term::ReadKey"		=> 0,
+        "IO::Compress::Xz"		=> 0,
+        "Term::ReadKey"			=> 0,
     },
     build_requires		=> {
         "Module::Signature"	=> 0,

Changes

@@ -1,5 +1,12 @@
 reslog change log
 
+2022-03-19	version 3.18
+	 1. Added support for the xz compression.
+	 2. Replaced Compress::Zlib with IO::Compress::Gzip and
+	    IO::Uncompress::Gunzip.
+	 3. Replaced Compress::Bzip2 with IO::Compress::Bzip2 and
+	    IO::Uncompress::Bunzip2.
+
 2020-02-06	version 3.17
 	 1. Replaced the messy GNU-styled, multi-lingual documents with a
 	    single Markdown README.md.

Makefile.PL

@@ -51,10 +51,11 @@ EOT
 # Optional prerequisite modules
 our (%OPT_PREREQ);
 %OPT_PREREQ = (
-    "File::MMagic"	=> 0,
+    "File::MMagic"			=> 0,
-    "Compress::Zlib"	=> 0,
+    "IO::Compress::Gzip"	=> 0,
-    "Compress::Bzip2"	=> 2,
+    "IO::Compress::Bzip2"	=> 0,
-    "Term::ReadKey"	=> 0,
+    "IO::Compress::Xz"		=> 0,
+    "Term::ReadKey"			=> 0,
 );
 delete $OPT_PREREQ{$_}
     foreach grep eval "use $_ $OPT_PREREQ{$_} qw(); 1;", sort keys %OPT_PREREQ;

README.md

@@ -40,10 +40,10 @@ Caution
 * I suggest that you install [File::MMagic] instead of counting on the
   `file` executable.  The internal magic file of File::MMagic works
   better than the `file` executable.  `reslog` treats everything not
-  gzip nor bzip2 compressed as plain text.  When a compressed log file
+  gzip, bzip2, nor xz compressed as plain text.  When a compressed log 
-  is wrongly recognized as an image, `reslog` treats it as plain text,
+  file is wrongly recognized as an image, `reslog` treats it as plain
-  reads directly from it, and fails.  This does not hurt the source
+  text, reads directly from it, and fails.  This does not hurt the
-  log files, but is still annoying.
+  source log files, but is still annoying.
 
 [File::MMagic]: https://metacpan.org/release/File-MMagic
 
@@ -97,22 +97,23 @@ System Requirement
      the [GnuWin32] home page.  Be sure to save it as `file.exe`
      somewhere in your `PATH`.
 
-   * [Compress::Zlib]
+   * [IO::Compress::Gzip] and [IO::Uncompress::Gunzip]
 
-     This is used to support reading/writing the gzip compressed
+     They are used to support reading/writing the gzip compressed
      files.  It is only needed when gzip compressed files are
-     encountered.  If it is not available, `arclog` tries the `gzip`
+     encountered.  If they are not available, `arclog` tries the
-     executable instead.  If that is not available, too, `arclog`
+     `gzip` executable instead.  If that is not available, too,
-     fails.  You should not worry about Compress::Zlib since it comes
+     `arclog` fails.  You should not worry about IO::Compress::Gzip
-     with Perl since version 5.9.3.  If not, it is contained in the
+     since it comes with Perl since version 5.9.3.  If not, it is
-     [IO-Compress] distribution.  You can download and install it from
+     contained in the [IO-Compress] distribution.  You can download
-     the CPAN archive, or install it with the CPAN shell:
+     and install it from the CPAN archive, or install it with the
+     CPAN shell:
 
-         cpan Compress::Zlib
+         cpan IO::Compress::Gzip
 
      or with the CPANPLUS shell:
 
-         cpanp i Compress::Zlib
+         cpanp i IO::Compress::Gzip
 
      For Debian/Ubuntu:
 
@@ -134,43 +135,80 @@ System Requirement
      [the gzip website].  Be sure to save it as `gzip.exe` somewhere
      in your `PATH`.
 
-   * [Compress::Bzip2] version 2 or above.
+   * [IO::Compress::Bzip2] and [IO::Uncompress::Bunzip2]
 
-     This is used to support reading/writing the bzip2 compressed
+     They are used to support reading/writing the bzip2 compressed
-     files.  It is only needed when bzip2 compressed files are
+     files.  They are only needed when bzip2 compressed files are
-     encountered.  If it is not available, `reslog` tries the `bzip2`
+     encountered.  If they are not available, `arclog` tries the
-     executable instead.  If that is not available, too, `reslog`
+     `bzip2` executable instead.  If that is not available, too,
-     fails.  Notice that older versions before 2 does not work, since
+     `arclog` fails.  You should not worry about IO::Compress::Bzip2
-     the file I/O compression was not implemented yet.  You can
+     since it comes with Perl since version 5.10.1.  If not, it is
-     download and install Compress::Bzip2 from the CPAN archive, or
+     contained in the [IO-Compress] distribution.  You can download
-     install it with the CPAN shell:
+     and install it from the CPAN archive, or install it with the
+     CPAN shell:
 
-         cpan Compress::Bzip2
+         cpan IO::Compress::Bzip2
 
      or with the CPANPLUS shell:
 
-         cpanp i Compress::Bzip2
+         cpanp i IO::Compress::Bzip2
 
      For Debian/Ubuntu:
 
-         sudo apt install libcompress-bzip2-perl
+         sudo apt install libio-compress-perl
 
      For Red Hat/Fedora/CentOS:
 
-         sudo yum install perl-Compress-Bzip2
+         sudo yum install perl-IO-Compress
 
      For FreeBSD:
 
-         ports install p5-Compress-Bzip2
+         ports install p5-IO-Compress
 
      For ActivePerl:
 
-         ppm install Compress-Bzip2
+         ppm install IO-Compress
 
      The alternative `bzip2.exe` for MS-Windows can be obtained from
      [the bzip2 website].  Be sure to save it as `bzip2.exe` somewhere
      in your `PATH`.
 
+   * [IO::Compress::Xz] and [IO::Uncompress::UnXz]
+
+     They are used to support reading/writing the xz compressed
+     files.  It is only needed when xz compressed files are
+     encountered.  If it is not available, `arclog` tries the `xz`
+     executable instead.  If that is not available, too, `arclog`
+     fails.  They are contained in the [IO-Compress-Lzma] distribution.
+     You can download and install it from the CPAN archive, or install
+     them with the CPAN shell:
+
+         cpan IO::Compress::Xz
+
+     or with the CPANPLUS shell:
+
+         cpanp i IO::Compress::Xz
+
+     For Debian/Ubuntu:
+
+         sudo apt install libio-compress-lzma-perl
+
+     For Red Hat/Fedora/CentOS:
+
+         sudo yum install perl-IO-Compress-Lzma
+
+     For FreeBSD:
+
+         ports install p5-IO-Compress-Lzma
+
+     For ActivePerl:
+
+         ppm install IO-Compress-Lzma
+
+     The alternative `xz.exe` for MS-Windows can be obtained from
+     [the XZ Utils website].  Be sure to save it as `xz.exe`
+     somewhere in your `PATH`.
+
    * [Term::ReadKey]
 
      This is used to display the progress bar.  The progress bar is a
@@ -206,11 +244,17 @@ System Requirement
 [ActivePerl]: https://www.activestate.com/products/perl/
 [File::MMagic]: https://metacpan.org/pod/File::MMagic
 [GnuWin32]: http://gnuwin32.sourceforge.net
-[Compress::Zlib]: https://metacpan.org/pod/Compress::Zlib
+[IO::Compress::Gzip]: https://metacpan.org/pod/IO::Compress::Gzip
+[IO::Uncompress::Gunzip]: https://metacpan.org/pod/IO::Uncompress::Gunzip
 [the gzip website]: https://www.gzip.org
-[IO-Compress]: https://metacpan.org/release/IO-Compress
+[IO-Compress]: https://metacpan.org/dist/IO-Compress
-[Compress::Bzip2]: https://metacpan.org/pod/Compress::Bzip2
+[IO::Compress::Bzip2]: https://metacpan.org/pod/IO::Compress::Bzip2
+[IO::Uncompress::Bunzip2]: https://metacpan.org/pod/IO::Uncompress::Bunzip2
 [the bzip2 website]: http://www.bzip.org
+[IO::Compress::Xz]: https://metacpan.org/pod/IO::Compress::Xz
+[IO::Uncompress::UnXz]: https://metacpan.org/pod/IO::Uncompress::UnXz
+[IO-Compress-Lzma]: https://metacpan.org/dist/IO-Compress-Lzma
+[the XZ Utils website]: https://tukaani.org/xz/
 [Term::ReadKey]: https://metacpan.org/pod/Term::ReadKey
 
 
@@ -373,7 +417,8 @@ Options
   The log file to be resolved.  You can specify multiple log files.
   If not specified, it reads from `STDIN` and outputs to `STDOUT`.
   You can also specify `-` to read from `STDIN`.  Result of `STDIN`
-  goes to `STDOUT`.  `gzip` or `bzip2` compressed files are supported.
+  goes to `STDOUT`.  `gzip`, `bzip2`, or `xz` compressed files are
+  supported.
 
 * `-k`, `--keep mode`
 
@@ -480,7 +525,7 @@ Thanks
 License
 -------
 
-    Copyright (C) 2000-2021 imacat.
+    Copyright (C) 2000-2022 imacat.
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

t/01-exhaust.t

@@ -1,7 +1,7 @@
 #! /usr/bin/perl -w
 # Test all the possible combination of options
 
-# Copyright (c) 2005-2021 imacat.
+# Copyright (c) 2005-2022 imacat.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ use warnings;
 use diagnostics;
 use Test;
 
-BEGIN { plan tests => 1341 }
+BEGIN { plan tests => 1788 }
 
 use File::Basename qw(basename);
 use File::Path qw(mkpath rmtree);
@@ -193,7 +193,7 @@ foreach my $st (@SOURCE_TYPES) {
             die unless $_ || $$st{"skip"};
         }
 
-        # 85: From STDIN to STDOUT
+        # 149: From STDIN to STDOUT
         $_ = eval {
             return if $$st{"skip"};
             my ($title, $cmd, $ret_no, $out, $err, $logfile, $result);

t/02-several.t

@@ -1,7 +1,7 @@
 #! /usr/bin/perl -w
 # Test processing several log files at once
 
-# Copyright (c) 2007-2021 imacat.
+# Copyright (c) 2007-2022 imacat.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ use warnings;
 use diagnostics;
 use Test;
 
-BEGIN { plan tests => 4 }
+BEGIN { plan tests => 5 }
 
 use File::Basename qw(basename);
 use File::Path qw(mkpath rmtree);
@@ -48,13 +48,15 @@ $_ = eval {
     $suf = "." . random_word;
     do { $trim_suf = "." . random_word; } until $trim_suf ne $suf;
     # (2-4 times available compression) log files
-    $_ = 2 + (has_no_gzip? 0: 2) + (has_no_bzip2? 0: 2);
+    $_ = 2 + (has_no_gzip? 0: 2) + (has_no_bzip2? 0: 2)
+        + (has_no_xz? 0: 2);
     $num = $_ + int rand $_;
     my %types = qw();
     # At least 2 files for each available compression
     foreach my $st (@SOURCE_TYPES) {
         next if ($$st{"type"} eq TYPE_GZIP && has_no_gzip)
-                || ($$st{"type"} eq TYPE_BZIP2 && has_no_bzip2);
+                || ($$st{"type"} eq TYPE_BZIP2 && has_no_bzip2)
+                || ($$st{"type"} eq TYPE_XZ && has_no_xz);
         @_ = grep !exists $types{$_}, (0...$num-1);
         $types{$_[int rand @_]} = $st;
         @_ = grep !exists $types{$_}, (0...$num-1);
@@ -65,7 +67,8 @@ $_ = eval {
         do {
             $types{$_} = $SOURCE_TYPES[int rand @SOURCE_TYPES];
         } until !(${$types{$_}}{"type"} eq TYPE_GZIP && has_no_gzip)
-                && !(${$types{$_}}{"type"} eq TYPE_BZIP2 && has_no_bzip2);
+                && !(${$types{$_}}{"type"} eq TYPE_BZIP2 && has_no_bzip2)
+                && !(${$types{$_}}{"type"} eq TYPE_XZ && has_no_xz);
     }
     @st = map $types{$_}, (0...$num-1);
     @fs = qw();
@@ -122,14 +125,15 @@ $_ = eval {
 ok($_, 1, $@);
 clean_up $_, $WORKDIR, ++$tno;
 
-# 2-4: One of the source log files is read from STDIN
+# 2-5: One of the source log files is read from STDIN
 # The file type at STDIN
 foreach my $st_stdin (@SOURCE_TYPES) {
     my $skip;
     $skip = 0;
     $_ = eval {
         if (    ($$st_stdin{"type"} eq TYPE_GZIP && has_no_gzip)
-                || ($$st_stdin{"type"} eq TYPE_BZIP2 && has_no_bzip2)) {
+                || ($$st_stdin{"type"} eq TYPE_BZIP2 && has_no_bzip2)
+                || ($$st_stdin{"type"} eq TYPE_XZ && has_no_xz)) {
             $skip = 1;
             return;
         }
@@ -143,13 +147,15 @@ foreach my $st_stdin (@SOURCE_TYPES) {
         $suf = "." . random_word;
         do { $trim_suf = "." . random_word; } until $trim_suf ne $suf;
         # (2-4 times available compression) log files
-        $_ = 2 + (has_no_gzip? 0: 2) + (has_no_bzip2? 0: 2);
+        $_ = 2 + (has_no_gzip? 0: 2) + (has_no_bzip2? 0: 2)
+            + (has_no_xz? 0: 2);
         $num = $_ + int rand $_;
         my %types = qw();
         # At least 2 files for each available compression
         foreach my $st (@SOURCE_TYPES) {
             next if ($$st{"type"} eq TYPE_GZIP && has_no_gzip)
-                    || ($$st{"type"} eq TYPE_BZIP2 && has_no_bzip2);
+                    || ($$st{"type"} eq TYPE_BZIP2 && has_no_bzip2)
+                    || ($$st{"type"} eq TYPE_XZ && has_no_xz);
             @_ = grep !exists $types{$_}, (0...$num-1);
             $types{$_[int rand @_]} = $st;
             @_ = grep !exists $types{$_}, (0...$num-1);
@@ -160,7 +166,8 @@ foreach my $st_stdin (@SOURCE_TYPES) {
             do {
                 $types{$_} = $SOURCE_TYPES[int rand @SOURCE_TYPES];
             } until !(${$types{$_}}{"type"} eq TYPE_GZIP && has_no_gzip)
-                    && !(${$types{$_}}{"type"} eq TYPE_BZIP2 && has_no_bzip2);
+                    && !(${$types{$_}}{"type"} eq TYPE_BZIP2 && has_no_bzip2)
+                    && !(${$types{$_}}{"type"} eq TYPE_XZ && has_no_xz);
         }
         # Choose the STDIN from the matching compression
         @_ = grep ${$types{$_}}{"type"} eq $$st_stdin{"type"}, (0...$num-1);

t/03-errors.t

@@ -1,7 +1,7 @@
 #! /usr/bin/perl -w
 # Test the errors that should be captured.
 
-# Copyright (c) 2007-2021 imacat.
+# Copyright (c) 2007-2022 imacat.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@ use warnings;
 use diagnostics;
 use Test;
 
-BEGIN { plan tests => 7 }
+BEGIN { plan tests => 9 }
 
 use File::Basename qw(basename);
 use File::Path qw(mkpath rmtree);
@@ -35,7 +35,7 @@ $WORKDIR = catdir($FindBin::Bin, "logs");
 $reslog = catfile($FindBin::Bin, updir, "blib", "script", "reslog");
 $tno = 0;
 
-# 1-6: Trim suffix is the same as suffix
+# 1-8: Trim suffix is the same as suffix
 foreach my $st (@SOURCE_TYPES) {
     # 1: Trim suffix is the same as suffix
     $_ = eval {
@@ -126,7 +126,7 @@ foreach my $st (@SOURCE_TYPES) {
     clean_up $_ || $$st{"skip"}, $WORKDIR, ++$tno;
 }
 
-# 7: A same log file is specified more than once
+# 9: A same log file is specified more than once
 $_ = eval {
     my ($title, $cmd, $ret_no, $out, $err, %logfiles);
     my ($fr, $frb, @fle, $fle, $flr, %cef, %crf, %tef, %trf);

t/_helper.pm

@@ -1,6 +1,6 @@
 # _helper.pm - A simple test suite helper
 
-# Copyright (c) 2005-2021 imacat
+# Copyright (c) 2005-2022 imacat
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,10 +25,10 @@ $VERSION = "0.05";
 @EXPORT = qw(
     read_file read_raw_file write_file write_raw_file
     run_cmd where_is file_type list_files preserve_source clean_up
-    has_no_file has_no_gzip has_no_bzip2
+    has_no_file has_no_gzip has_no_bzip2 has_no_xz
     make_log_file make_resolved_log_file make_empty_log_file
     random_word
-    TYPE_TEXT TYPE_GZIP TYPE_BZIP2
+    TYPE_TEXT TYPE_GZIP TYPE_BZIP2 TYPE_XZ
     @CONTENT_TYPES @SOURCE_TYPES @KEEP_MODES @OVERRIDE_MODES @SUFFICES @TRIM_SUFFIX);
 # Prototype declaration
 sub this_file();
@@ -45,6 +45,7 @@ sub clean_up($$$);
 sub has_no_file();
 sub has_no_gzip();
 sub has_no_bzip2();
+sub has_no_xz();
 sub make_log_file($);
 sub make_resolved_log_file($);
 sub make_empty_log_file($);
@@ -60,16 +61,18 @@ use File::Spec::Functions qw(splitdir catdir catfile path);
 use File::Temp qw(tempfile);
 use Socket;
 
-our (%WHERE_IS, $HAS_NO_FILE, $HAS_NO_GZIP, $HAS_NO_BZIP2, $RANDOM_IP);
+our (%WHERE_IS, $HAS_NO_FILE, $HAS_NO_GZIP, $HAS_NO_BZIP2, $HAS_NO_XZ, $RANDOM_IP);
 %WHERE_IS = qw();
 undef $HAS_NO_FILE;
 undef $HAS_NO_GZIP;
 undef $HAS_NO_BZIP2;
+undef $HAS_NO_XZ;
 undef $RANDOM_IP;
 
 use constant TYPE_TEXT => "text/plain";
 use constant TYPE_GZIP => "application/x-gzip";
 use constant TYPE_BZIP2 => "application/x-bzip2";
+use constant TYPE_XZ => "application/x-xz";
 
 our (@CONTENT_TYPES, @SOURCE_TYPES, @KEEP_MODES, @OVERRIDE_MODES, @SUFFICES,
     @TRIM_SUFFIX);
@@ -94,7 +97,11 @@ our (@CONTENT_TYPES, @SOURCE_TYPES, @KEEP_MODES, @OVERRIDE_MODES, @SUFFICES,
     {   "title" => "bzip2 source",
         "type"  => TYPE_BZIP2,
         "suf"   => ".bz2",
-        "skip"  => has_no_bzip2, }, );
+        "skip"  => has_no_bzip2, },
+    {   "title" => "xz source",
+        "type"  => TYPE_XZ,
+        "suf"   => ".xz",
+        "skip"  => has_no_xz, }, );
 # All the keep mode information
 @KEEP_MODES = (
     {   "title" => "keep default",
@@ -179,29 +186,21 @@ sub read_file($) {
 
     # a gzip compressed file
     if ($file =~ /\.gz$/) {
-        # Compress::Zlib
+        # IO::Uncompress::Gunzip
-        if (eval {  require Compress::Zlib;
+        if (eval { require IO::Uncompress::Gunzip; 1; }) {
-                    Compress::Zlib->import(qw(gzopen));
+            my $gz;
-                    1; }) {
-            use Compress::Zlib qw(gzopen);
-            my ($FH, $gz);
             $content = "";
-            open $FH, $file             or die this_file . ": $file: $!";
+            $gz = IO::Uncompress::Gunzip->new($file)
-            $gz = gzopen($FH, "rb")     or die this_file . ": $file: $!";
+                                        or die this_file . ": $file: $IO::Uncompress::Gunzip::GunzipError";
-            while (1) {
+            $content = join "", <$gz>;
-                ($gz->gzread($_, 10240) != -1)
+            $gz->close                  or die this_file . ": $file: $IO::Uncompress::Gunzip::GunzipError";
-                                        or die this_file . ": $file: " . $gz->gzerror;
-                $content .= $_;
-                last if length $_ < 10240;
-            }
-            $gz->gzclose                and die this_file . ": $file: " . $gz->gzerror;
             return $content;
 
         # gzip executable
         } else {
             my ($PH, $CMD);
             $CMD = where_is "gzip";
-            $CMD = "\"$CMD\" -cd \"$file\"";
+            $CMD = "\"$CMD\" -cdf \"$file\"";
             open $PH, "$CMD |"          or die this_file . ": $CMD: $!";
             $content = join "", <$PH>;
             close $PH                   or die this_file . ": $CMD: $!";
@@ -210,29 +209,44 @@ sub read_file($) {
 
     # a bzip compressed file
     } elsif ($file =~ /\.bz2$/) {
-        # Compress::Bzip2
+        # IO::Uncompress::Bunzip2
-        if (eval {  require Compress::Bzip2;
+        if (eval { require IO::Uncompress::Bunzip2; 1; }) {
-                    Compress::Bzip2->import(2.00);
+            my $bz;
-                    Compress::Bzip2->import(qw(bzopen));
-                    1; }) {
-            my ($FH, $bz);
             $content = "";
-            open $FH, $file             or die this_file . ": $file: $!";
+            $bz = IO::Uncompress::Bunzip2->new($file)
-            $bz = bzopen($FH, "rb")     or die this_file . ": $file: $!";
+                                        or die this_file . ": $file: $IO::Uncompress::Bunzip2::Bunzip2Error";
-            while (1) {
+            $content = join "", <$bz>;
-                ($bz->bzread($_, 10240) != -1)
+            $bz->close                  or die this_file . ": $file: $IO::Uncompress::Bunzip2::Bunzip2Error";
-                                        or die this_file . ": $file: " . $bz->bzerror;
-                $content .= $_;
-                last if length $_ < 10240;
-            }
-            $bz->bzclose                and die this_file . ": $file: " . $bz->bzerror;
             return $content;
 
         # bzip2 executable
         } else {
             my ($PH, $CMD);
             $CMD = where_is "bzip2";
-            $CMD = "bzip2 -cd \"$file\"";
+            $CMD = "\"$CMD\" -cdf \"$file\"";
+            open $PH, "$CMD |"          or die this_file . ": $CMD: $!";
+            $content = join "", <$PH>;
+            close $PH                   or die this_file . ": $CMD: $!";
+            return $content;
+        }
+
+    # an xz compressed file
+    } elsif ($file =~ /\.xz$/) {
+        # IO::Uncompress::UnXz
+        if (eval { require IO::Uncompress::UnXz; 1; }) {
+            my $xz;
+            $content = "";
+            $xz = IO::Uncompress::UnXz->new($file)
+                                        or die this_file . ": $file: $IO::Uncompress::UnXz::UnXzError";
+            $content = join "", <$xz>;
+            $xz->close                  or die this_file . ": $file: $IO::Uncompress::UnXz::UnXzError";
+            return $content;
+
+        # xz executable
+        } else {
+            my ($PH, $CMD);
+            $CMD = where_is "xz";
+            $CMD = "\"$CMD\" -cdf \"$file\"";
             open $PH, "$CMD |"          or die this_file . ": $CMD: $!";
             $content = join "", <$PH>;
             close $PH                   or die this_file . ": $CMD: $!";
@@ -275,16 +289,14 @@ sub write_file($$) {
 
     # a gzip compressed file
     if ($file =~ /\.gz$/) {
-        # Compress::Zlib
+        # IO::Compress::Gzip
-        if (eval {  require Compress::Zlib;
+        if (eval { require IO::Compress::Gzip; 1; }) {
-                    Compress::Zlib->import(qw(gzopen));
+            my $gz;
-                    1; }) {
+            $gz = IO::Compress::Gzip->new($file, -Level => 9)
-            my ($FH, $gz);
+                                        or die this_file . ": $file: $IO::Compress::Gzip::GzipError";
-            open $FH, ">$file"          or die this_file . ": $file: $!";
+            ($gz->write($content) == length $content)
-            $gz = gzopen($FH, "wb9")    or die this_file . ": $file: $!";
+                                        or die this_file . ": $file: $IO::Compress::Gzip::GzipError";
-            ($gz->gzwrite($content) == length $content)
+            $gz->close                  or die this_file . ": $file: $IO::Compress::Gzip::GzipError";
-                                        or die this_file . ": $file: " . $gz->gzerror;
-            $gz->gzclose                and die this_file . ": $file: " . $gz->gzerror;
             return;
 
         # gzip executable
@@ -300,26 +312,44 @@ sub write_file($$) {
 
     # a bzip compressed file
     } elsif ($file =~ /\.bz2$/) {
-        # Compress::Bzip2
+        # IO::Compress::Bzip2
-        if (eval {  require Compress::Bzip2;
+        if (eval { require IO::Compress::Bzip2; 1; }) {
-                    Compress::Bzip2->import(2.00);
+            my $bz;
-                    Compress::Bzip2->import(qw(bzopen));
+            $bz = IO::Compress::Bzip2->new($file, BlockSize100K => 9)
-                    1; }) {
+                                        or die this_file . ": $file: $IO::Compress::Bzip2::Bzip2Error";
-            my ($FH, $bz);
+            ($bz->write($content) == length $content)
-            open $FH, ">$file"          or die this_file . ": $file: $!";
+                                        or die this_file . ": $file: $IO::Compress::Bzip2::Bzip2Error";
-            $bz = bzopen($FH, "wb9")    or die this_file . ": $file: $!";
+            $bz->close                  or die this_file . ": $file: $IO::Compress::Bzip2::Bzip2Error";
-            if ($content ne "") {
-                ($bz->bzwrite($content, length $content) == length $content)
-                                        or die this_file . ": $file: " . $bz->bzerror;
-            }
-            $bz->bzclose                and die this_file . ": $file: " . $bz->bzerror;
             return;
 
         # bzip2 executable
         } else {
             my ($PH, $CMD);
             $CMD = where_is "bzip2";
-            $CMD = "\"$CMD\" -9f > \"$file\"";
+            $CMD = "\"$CMD\" -c9f > \"$file\"";
+            open $PH, "| $CMD"        or die this_file . ": $CMD: $!";
+            print $PH $content        or die this_file . ": $CMD: $!";
+            close $PH                 or die this_file . ": $CMD: $!";
+            return;
+        }
+
+    # an xz compressed file
+    } elsif ($file =~ /\.xz$/) {
+        # IO::Compress::Xz
+        if (eval { require IO::Compress::Xz; 1; }) {
+            my $xz;
+            $xz = IO::Compress::Xz->new($file, Extreme => 1)
+                                        or die this_file . ": $file: $IO::Compress::Xz::XzError";
+            ($xz->write($content) == length $content)
+                                        or die this_file . ": $file: $IO::Compress::Xz::XzError";
+            $xz->close                  or die this_file . ": $file: $IO::Compress::Xz::XzError";
+            return;
+
+        # xz executable
+        } else {
+            my ($PH, $CMD);
+            $CMD = where_is "xz";
+            $CMD = "\"$CMD\" -c9f > \"$file\"";
             open $PH, "| $CMD"        or die this_file . ": $CMD: $!";
             print $PH $content        or die this_file . ": $CMD: $!";
             close $PH                 or die this_file . ": $CMD: $!";
@@ -418,6 +448,7 @@ sub file_type($) {
         $_ = File::MMagic->new->checktype_filename($file);
         return TYPE_GZIP if /gzip/;
         return TYPE_BZIP2 if /bzip2/;
+        return TYPE_XZ if /xz/;
         # All else are text/plain
         return TYPE_TEXT;
     }
@@ -426,6 +457,7 @@ sub file_type($) {
         $_ = join "", `"$_" "$file"`;
         return TYPE_GZIP if /gzip/;
         return TYPE_BZIP2 if /bzip2/;
+        return TYPE_XZ if /: XZ/;
         # All else are text/plain
         return TYPE_TEXT;
     }
@@ -499,22 +531,31 @@ sub has_no_file() {
 
 # If we have gzip support somewhere
 sub has_no_gzip() {
-    $HAS_NO_GZIP = eval { require Compress::Zlib; 1; }
+    $HAS_NO_GZIP = eval { require IO::Compress::Gzip; require IO::Uncompress::Gunzip; 1; }
                 || defined where_is "gzip"?
-            0: "Compress::Zlib or gzip executable not available"
+            0: "IO::Compress::Gzip or gzip executable not available"
         if !defined $HAS_NO_GZIP;
     return $HAS_NO_GZIP;
 }
 
 # If we have bzip2 support somewhere
 sub has_no_bzip2() {
-    $HAS_NO_BZIP2 = eval { require Compress::Bzip2; Compress::Bzip2->import(2.00); 1; }
+    $HAS_NO_BZIP2 = eval { require IO::Compress::Bzip2; require IO::Uncompress::Bunzip2; 1; }
                 || defined where_is "bzip2"?
-            0: "Compress::Bzip2 v2 or bzip2 executable not available"
+            0: "IO::Compress::Bzip2 v2 or bzip2 executable not available"
         if !defined $HAS_NO_BZIP2;
     return $HAS_NO_BZIP2;
 }
 
+# If we have xz support somewhere
+sub has_no_xz() {
+    $HAS_NO_XZ = eval { require IO::Compress::Xz; require IO::Uncompress::UnXz; 1; }
+                || defined where_is "xz"?
+            0: "IO::Compress::Xz or xz executable not available"
+        if !defined $HAS_NO_XZ;
+    return $HAS_NO_XZ;
+}
+
 # Create a normal random log file
 sub make_log_file($) {
     local ($_, %_);