Require Perl 5.26.0

Our platform support policy states that we require "versions of
dependencies which are generally accepted as stable and supportable,
e.g., in line with the version used by other long-term-support
distributions".  Of Debian, Ubuntu, RHEL, and SLES, the four most common
distributions that provide LTS versions, the version with mainstream
long-term security support with the oldest Perl is 5.26.0 in SLES 15.6.

This is a major upgrade, since Perl 5.8.1, according to the Perl
documentation, was released in September of 2003.  It brings a lot of
new features that we can choose to use, such as s///r to return the
modified string, the postderef functionality, and subroutine signatures,
although the latter was still considered experimental until 5.36.

This change was made with the following one-liner, which intentionally
excludes modifying the vendored modules we include to avoid conflicts:

    git grep -l 'use 5.008001' | grep -v 'LoadCPAN/' | xargs perl -pi -e 's/use 5.008001/require v5.26/'

Use require instead of use to avoid changing the behavior as the latter
enables features and the former does not.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>

18 files changed, 18 insertions, 18 deletions

diff --git a/INSTALL b/INSTALL
index 6e0321ff0e..54d7528f9e 100644
--- a/INSTALL
+++ b/INSTALL
@@ -119,7 +119,7 @@ Issues of note:
 	- A POSIX-compliant shell is required to run some scripts needed
 	  for everyday use (e.g. "bisect", "request-pull").
 
-	- "Perl" version 5.8.1 or later is needed to use some of the
+	- "Perl" version 5.26.0 or later is needed to use some of the
 	  features (e.g. sending patches using "git send-email",
 	  interacting with svn repositories with "git svn").  If you can
 	  live without these, use NO_PERL.  Note that recent releases of
diff --git a/contrib/diff-highlight/DiffHighlight.pm b/contrib/diff-highlight/DiffHighlight.pm
index 636add6968..3d061bc0b7 100644
--- a/contrib/diff-highlight/DiffHighlight.pm
+++ b/contrib/diff-highlight/DiffHighlight.pm
@@ -1,6 +1,6 @@
 package DiffHighlight;
 
-use 5.008001;
+require v5.26;
 use warnings FATAL => 'all';
 use strict;
 
diff --git a/contrib/mw-to-git/Git/Mediawiki.pm b/contrib/mw-to-git/Git/Mediawiki.pm
index ff7811225e..629c0cea44 100644
--- a/contrib/mw-to-git/Git/Mediawiki.pm
+++ b/contrib/mw-to-git/Git/Mediawiki.pm
@@ -1,6 +1,6 @@
 package Git::Mediawiki;
 
-use 5.008001;
+require v5.26;
 use strict;
 use POSIX;
 use Git;
diff --git a/git-archimport.perl b/git-archimport.perl
index f5a317b899..6d0169cb6a 100755
--- a/git-archimport.perl
+++ b/git-archimport.perl
@@ -54,7 +54,7 @@ and can contain multiple, unrelated branches.
 
 =cut
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Std;
diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index 1e03ba94d1..edf02f9964 100755
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Std;
diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index 211ec8459a..e10ad5334e 100755
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -13,7 +13,7 @@
 # The head revision is on branch "origin" by default.
 # You can change that with the '-o' option.
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use Getopt::Long;
diff --git a/git-cvsserver.perl b/git-cvsserver.perl
index 124f598bdc..a4ad9a5d2d 100755
--- a/git-cvsserver.perl
+++ b/git-cvsserver.perl
@@ -15,7 +15,7 @@
 ####
 ####
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use bytes;
diff --git a/git-send-email.perl b/git-send-email.perl
index c835d4c11a..c4d12bebc8 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -16,7 +16,7 @@
 #    and second line is the subject of the message.
 #
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 use Getopt::Long;
diff --git a/git-svn.perl b/git-svn.perl
index 01e7a70de1..9c7c629932 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
 # License: GPL v2 or later
-use 5.008001;
+require v5.26;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 use strict;
 use vars qw/	$AUTHOR $VERSION
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index b09a8d0523..da1486cab2 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -7,7 +7,7 @@
 #
 # This program is licensed under the GPLv2
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 # handle ACL in file access tests
diff --git a/perl/Git.pm b/perl/Git.pm
index 667152c6c6..6f47d653ab 100644
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -7,7 +7,7 @@ Git - Perl interface to the Git version control system
 
 package Git;
 
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 
diff --git a/perl/Git/I18N.pm b/perl/Git/I18N.pm
index 475e90a6df..ab46edb608 100644
--- a/perl/Git/I18N.pm
+++ b/perl/Git/I18N.pm
@@ -1,5 +1,5 @@
 package Git::I18N;
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 BEGIN {
diff --git a/perl/Git/LoadCPAN.pm b/perl/Git/LoadCPAN.pm
index 8c7fa805f9..61254fddbb 100644
--- a/perl/Git/LoadCPAN.pm
+++ b/perl/Git/LoadCPAN.pm
@@ -1,5 +1,5 @@
 package Git::LoadCPAN;
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 
diff --git a/perl/Git/Packet.pm b/perl/Git/Packet.pm
index d896e69523..00fd9c484a 100644
--- a/perl/Git/Packet.pm
+++ b/perl/Git/Packet.pm
@@ -1,5 +1,5 @@
 package Git::Packet;
-use 5.008001;
+require v5.26;
 use strict;
 use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
 BEGIN {
diff --git a/t/t0202/test.pl b/t/t0202/test.pl
index 47d96a2a13..5085a0eda5 100755
--- a/t/t0202/test.pl
+++ b/t/t0202/test.pl
@@ -1,5 +1,5 @@
 #!/usr/bin/perl
-use 5.008001;
+require v5.26;
 use lib (split(/:/, $ENV{GITPERLLIB}));
 use strict;
 use warnings;
diff --git a/t/t5562/invoke-with-content-length.pl b/t/t5562/invoke-with-content-length.pl
index 9babb9a375..211e29fade 100644
--- a/t/t5562/invoke-with-content-length.pl
+++ b/t/t5562/invoke-with-content-length.pl
@@ -1,4 +1,4 @@
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 
diff --git a/t/t9700/test.pl b/t/t9700/test.pl
index 2e1d50d4d1..58a9b328d5 100755
--- a/t/t9700/test.pl
+++ b/t/t9700/test.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use lib (split(/:/, $ENV{GITPERLLIB}));
 
-use 5.008001;
+require v5.26;
 use warnings;
 use strict;
 
diff --git a/t/test-terminal.perl b/t/test-terminal.perl
index b8fd6a4f13..862bb8f395 100755
--- a/t/test-terminal.perl
+++ b/t/test-terminal.perl
@@ -1,5 +1,5 @@
 #!/usr/bin/perl
-use 5.008001;
+require v5.26;
 use strict;
 use warnings;
 use IO::Pty;