mk_exim_release: enable flexible compressor selection

[users/jgh/exim.git] / release-process / scripts / mk_exim_release

diff --git a/release-process/scripts/mk_exim_release b/release-process/scripts/mk_exim_release
index 34fe77c6726b1b95680893a6ec34e24c36641bb5..5ed476365e27a4ede6cf0f9cfa55c1d11cec2a91 100755 (executable)
--- a/release-process/scripts/mk_exim_release
+++ b/release-process/scripts/mk_exim_release
@@ -1,449 +1,653 @@
 #!/usr/bin/env perl
 #!/usr/bin/env perl

-# Copyright (c) The Exim Maintainers 2016
+# Copyright (c) The Exim Maintainers 2016-2018

 
 use strict;
 use warnings;
 use Carp;
 
 use strict;
 use warnings;
 use Carp;

-use File::Copy;
-use File::Spec;
-use File::Path;
+use Cwd qw'abs_path';
+use File::Basename;
+use File::Path qw(make_path remove_tree);

 use File::Temp;
 use File::Temp;

-use FindBin;

 use Getopt::Long;
 use IO::File;
 use Pod::Usage;
 use Getopt::Long;
 use IO::File;
 use Pod::Usage;

+use Digest::SHA;
+use if $ENV{DEBUG} => 'Smart::Comments';

 
 

-my $debug   = 0;
-my $verbose = 0;
+my $ME = basename $0;

 
 

-# ------------------------------------------------------------------

 
 

-sub get_and_check_version {
-    my $release = shift;
-    my $context = shift;
+my $debug   = undef;
+my $verbose = 0;

 
 

-    # make sure this looks like a real release version
-    # which should (currently) be 4.xx[.y] or 4.xx[.y]_RCx
-    unless ( $release =~ /^(?<release>(?<major>4\.\d\d)(?:\.(?<minor>\d+))?(?:_RC\d+)?)$/ ) {
-        croak "The given version number does not look right - $release";
-    }
-    $context->{release}  = $+{release};
-    $context->{major} = $+{major};
-    $context->{minor} = $+{minor};
-
-    ($context->{trelease} = $+{release}) =~ s/_RC\d+//;
-}
+# MAJOR.MINOR[.SECURITY[.FIXES]][-RCX]
+# 4    .90    .0        .22      -RC1
+my $version_pattern = qr/
+    (?<release>
+    (?<target_release>
+           (?<major>\d)         # 4
+         \.(?<minor>\d\d)       #  .90
+      (?:\.(?<security>\d+)     #     .0
+      (?:\.(?<fixes>)\d+)?)?    #       .22
+    )                           # target-release ->|
+       (?:-(?<rc>RC\d+)?)?      #          -RC1
+    )
+/x;
+
+my $quick_version_pattern = qr/
+   (?<release>
+   (?<last_tag>
+           (?<major>\d)         # 4
+         \.(?<minor>\d\d)       #  .90
+      (?:\.(?<security>\d+)     #     .0
+      (?:\.(?<fixes>)\d+)?)?    #       .22
+   )                            # last-tag ->|
+       (?:-(?<quick>\d+-g[[:xdigit:]]+))?     #  -3-gdeadbef
+    )
+/x;

 
 # ------------------------------------------------------------------
 
 
 # ------------------------------------------------------------------
 

-sub build_tag {
-    my $context = shift;
+package Context {
+    use strict;     # not strictly necessary yet, until in an own package
+    use warnings;   # not strictly necessary yet, ...
+    use File::Spec::Functions qw'splitpath catfile catdir splitdir';
+    use File::Path qw'make_path remove_tree';
+    use File::Copy;
+    use Cwd qw'abs_path';
+    use Carp;
+
+    package PWD {
+        use Cwd;
+        sub TIESCALAR { bless do {\my $x} }
+        sub FETCH { cwd }
+    }

 
 

-    # The CVS tag consists of exim-$version where $version
-    # is the version number with . replaced with _
-    my $modversion = $context->{release};
-    $modversion =~ tr/0-9RC/_/cs;
+    tie my $cwd => 'PWD' or die;    # this returns the current dir now, dynamically

 
 

-    return sprintf( 'exim-%s', $modversion );
-}
+    sub new {
+        my $class = shift;
+        return bless { @_ } => $class;
+    }

 
 

-# ------------------------------------------------------------------
+    sub check_version {
+        my $context = shift;
+        my $version = shift // 'HEAD';
+
+        #
+        # v => {
+        #   release =>                   4.92-RC4 |    4.92-27-gabcdef
+        #   target_release|last_tag =>   4.92     |    4.92
+        #
+        #   major    =>  4
+        #   minor    =>  92
+        #   security =>
+        #   fixes    =>
+        #
+        #   rc|quick =>   RC4 | 27-gabcdef
+        #   }
+
+        #
+        # v => {
+        #   release =>                   4.92-RC4 |    4.92-27-gabcdef-dirty
+        #   target_release|last_tag =>   4.92     |    4.92
+        #
+        #   major    =>  4
+        #   minor    =>  92
+        #   security =>
+        #   fixes    =>
+        #
+        #   rc|quick =>   RC4 | 27-gabcdef-dirty
+        #   }
+
+        if ($context->{quick}) {
+            # Try to find suitable version description
+            chomp(my $describe = do {   # we wrap it into a open() to avoid hassle with
+                open(my $fh, '-|',      # strange version descriptions
+                    'git', describe => $version) or die;
+                <$fh>
+                } // exit 1);
+            $describe =~ /$quick_version_pattern/;
+
+            %{$context->{v}} = %+;
+            ($context->{commit}) = $version // ($context->{v}{quick} =~ /g([[:xdigit:]]+)/);
+        }
+        else {
+            croak "The given version number does not look right - $version"
+                if not $version =~ /$version_pattern/;
+            %{$context->{v}} = %+;

 
 

-sub deal_with_working_directory {
-    my $context = shift;
-    my $delete  = shift;
+            # find a valid vcs tag matching the version
+            my $pattern = "$context->{pkgname}-$context->{v}{release}" =~ s/[-_.]/[-_.]/gr;
+            chomp(my @tags = qx{git tag --list '$pattern'});

 
 

-    # Set default directory
-    $context->{directory} ||= File::Spec->rel2abs( sprintf( 'exim-packaging-%s', $context->{release} ) );
-    my $directory = $context->{directory};
+            croak "The given version is ambigous, tags: @tags\n" if @tags > 1;
+            croak "The given version does not exist (no such tag: exim-$version)\n" if @tags == 0;

 
 

-    # ensure the working directory is not in place
-    if ( -d $directory ) {
-        if ($delete) {
-            print "Deleting existing $directory\n" if ($verbose);
-            rmtree( $directory, { verbose => $debug } );
-        }
-        if ( -d $directory ) {
-            croak "Working directory $directory exists";
+            $context->{commit} = $tags[0];
+            # target_release: the release we aim to reach with release candidates
+            # FIXME: re-construct from the parsed version number

         }
         }

-    }

 
 

-    # create base directory
-    mkpath( $context->{directory}, { verbose => ( $verbose || $debug ) } );
+        die "$ME: This script doesn't work for versions prior 4.92-RCx. "
+           ."Please checkout an older version.\n"
+            if $context->{v}{major} < 4
+            or $context->{v}{major} == 4 && $context->{v}{minor} < 92;
+
+        ### v: $context->{v}

 
 

-    # set and create subdirectories
-    foreach (qw(release_tree pkgs pkgdirs docbook tmp)) {
-        $context->{$_} = File::Spec->catdir( $context->{directory}, $_ );
-        mkpath( $context->{$_}, { verbose => ( $verbose || $debug ) } );

     }
     }

-}

 
 

-# ------------------------------------------------------------------

 
 

-sub export_git_tree {
-    my $context = shift;
+    # We prefer gtar to tar if gtar exists in $PATH
+    sub override_tar_cmd {
+        my $context = shift;
+        my $tar = $context->{tar_cmd};

 
 

-    # build git command
-    my $archive_file = sprintf( '%s/%s-%s.tar', $context->{tmp}, $context->{pkgname}, $context->{release} );
-    $context->{tmp_archive_file} = $archive_file;
-    my @cmd = ( 'git', 'archive', '--format=tar', "--output=$archive_file", $context->{tag} );
-    # run git command
-    print( "Running: ", join( ' ', @cmd ), "\n" ) if ($verbose);
-    system(@cmd) == 0 || croak "Export failed";
-}
+        return unless $tar eq 'tar';

 
 

-# ------------------------------------------------------------------
+        foreach my $d (File::Spec->path()) {
+            my $p = catfile($d, 'gtar');
+            if (-x $p) {
+                $context->{tar_cmd} = $p;
+                print "Switched tar command to: $p\n" if $verbose;
+                return;
+            }
+        }
+    }

 
 

-sub unpack_tree {
-    my $context = shift;
+    sub prepare_working_directory {
+        my $context = shift;
+        my $workspace = $context->{workspace};

 
 

-    die "Cannot see archive file\n" unless ( -f $context->{tmp_archive_file} );
-    my @cmd = ( 'tar', 'xf', $context->{tmp_archive_file}, '-C', $context->{release_tree} );
+        if (not defined $workspace) {
+            $workspace = $context->{workspace} = File::Temp->newdir(File::Spec->tmpdir . '/exim-packaging-XXXX');
+        }
+        else {
+            # ensure the working directory is not in place
+            if (-e $workspace) {
+                if ($context->{delete}) {
+                    print "Deleting existing $workspace\n" if $verbose;
+                    remove_tree $workspace, { verbose => $verbose || $debug };
+                }
+                else {
+                    croak "Working directory $workspace exists" if -e $workspace;
+                }
+            }
+
+            # create base directory
+            make_path( $context->{directory}, { verbose => $verbose || $debug } );
+        }

 
 

-    # run  command
-    print( "Running: ", join( ' ', @cmd ), "\n" ) if ($verbose);
-    system(@cmd) == 0 || croak "Unpack failed";
-}
+        # Set(!) and create subdirectories
+        foreach (qw(vcs_export pkg_tars pkg_trees tmp)) {   # {dookbook}
+            make_path(
+                $context->{d}{$_} = catdir($workspace, $_),
+                { verbose => $verbose || $debug });
+        }
+    }

 
 

-# ------------------------------------------------------------------
+    sub export_git_tree {
+        my $context = shift;
+
+        # build git command
+        my $archive_file = $context->{tmp_archive_file} = sprintf'%s/%s-%s.tar', $context->{d}{tmp}, $context->{pkgname}, $context->{v}{release};
+        ### $archive_file
+        my @cmd = ( 'git', 'archive', '--format=tar', "--output=$archive_file", $context->{commit} );
+        ### @cmd
+        # run git command
+        print "[$cwd] Running: @cmd\n" if $verbose;
+        0 == system @cmd or croak "Export failed";
+    }

 
 

-sub make_version_script {
-    my $context = shift;
+    sub unpack_tree {
+        # TODO: Why can't we combine the export_git_tree with the
+        # unpack_tree function?
+        my $context = shift;

 
 

-    my $variant = substr( $context->{release}, length($context->{trelease}) );
-    if ( $context->{release} ne $context->{trelease} . $variant ) {
-        die "Broken version numbering, I'm buggy";
-    }
+        ### $context
+        die "Cannot see archive file\n" unless -f $context->{tmp_archive_file};
+        my @cmd = ('tar',
+            xf => $context->{tmp_archive_file},
+            -C => $context->{d}{vcs_export} );

 
 

-    my $srcdir    = File::Spec->catdir( $context->{release_tree}, 'src', 'src' );
-    chdir $srcdir or die "chdir $srcdir: $!\n";
+        # run  command
+        print "[$cwd] Running: @cmd\n" if $verbose;
+        system @cmd and croak "Unpack failed\n";

 
 

-    if ( -f "version.sh" ) {
-        print( "WARNING: version.sh already exists - leaving it in place\n" );
-        return;

     }
 
     }
 

-    # Currently (25. Feb. 2016) the mk_exim_release.pl up to now can't
-    # deal with security releases.!? So we need a current
-    # mk_exim_release.pl. But if we use a current (master), the
-    # reversion script returns wrong version info (it's running inside
-    # the Git tree and uses git --describe, which always returns the
-    # current version of master.) I do not want to change the old
-    # reversion scripts (in 4.86.1, 4.85.1).
-    #
-    # Thus we've to provide the version.sh, based on the info we have
-    # about the release. If reversion finds this, it doesn't try to find
-    # it's own way to get a valid version number from the git.
-    open(my $v, '>', 'version.sh') or die "Can't open '>version.sh' $!\n";
-    print {$v} <<__;
-# initial version automatically generated from $0
-EXIM_RELEASE_VERSION=$context->{major}
-EXIM_VARIANT_VERSION=@{[$context->{minor}?'_'.$context->{minor}:'']}
+    sub make_version_script {
+        my $context = shift;
+
+        #my $variant = substr( $context->{v}{release}, length($context->{v}{target_release}) );
+        #if ( $context->{v}{release} ne $context->{v}{target_release} . $variant ) {
+        #    die "Broken version numbering, I'm buggy";
+        #}
+
+
+        # Work
+        if (not my $pid = fork // die "$ME: Cannot fork: $!\n") {
+
+            my $source_tree    = catdir($context->{d}{vcs_export}, 'src', 'src');
+            ### $source_tree
+
+            chdir $source_tree or die "chdir $source_tree: $!\n";
+
+            croak "WARNING: version.sh already exists - leaving it in place\n"
+                if -f 'version.sh';
+
+            # Currently (25. Feb. 2016) the mk_exim_release.pl up to now can't
+            # deal with security releases.!? So we need a current
+            # mk_exim_release.pl. But if we use a current (master), the
+            # reversion script returns wrong version info (it's running inside
+            # the Git tree and uses git --describe, which always returns the
+            # current version of master.) I do not want to change the old
+            # reversion scripts (in 4.86.1, 4.85.1).
+            #
+            # Thus we've to provide the version.sh, based on the info we have
+            # about the release. If reversion finds this, it doesn't try to find
+            # it's own way to get a valid version number from the git.
+            #
+            # 4.89 series: the logic here did not handle _RC<N> thus breaking RC
+            # status in versions.  nb: rc in context should be same as $variant
+            # in local context.
+
+            #my $stamp = $context->{minor} ? '_'.$context->{minor} : '';
+            #$stamp .= $context->{rc} if $context->{rc};
+            my $release = $context->{v}{rc} ? $context->{v}{target_release}
+                                            : $context->{v}{last_tag};
+
+            my $variant =
+                  $context->{v}{rc} ? $context->{v}{rc}
+                : $context->{v}{quick} ? $context->{v}{quick}
+                : '';
+
+            print "[$cwd] create version.sh\n" if $verbose;
+            open(my $v, '>', 'version.sh') or die "Can't open version.sh for writing: $!\n";
+            print {$v} <<__;
+# initial version automatically generated by $0
+EXIM_RELEASE_VERSION=$release
+EXIM_VARIANT_VERSION=$variant

 EXIM_COMPILE_NUMBER=0
 EXIM_COMPILE_NUMBER=0

+# echo "[[[ \$EXIM_RELEASE_VERSION | \$EXIM_VARIANT_VERSION | \$EXIM_COMPILE_NUMBER ]]]"

 __
 __

-    close($v);
-    unlink 'version.h';
-    return;
+            close $v  or die "$0: Can not close $source_tree/version.h: $!\n";
+            unlink 'version.h' or die "$ME: Can not unlink $source_tree/version.h: $!\n"
+                if -f 'version.h';

 
 

-    # Later, if we get the reversion script fixed, we can call it again.
-    # For now (25. Feb. 2016) we'll leave it unused.
-    my @cmd = ("../scripts/reversion", "release", $context->{tag});
-    print( "Running: ", join( ' ', @cmd ), "\n" ) if ($verbose);
-    system(@cmd) == 0 || croak "reversion failed";
+            # Later, if we get the reversion script fixed, we can call it again.
+            # For now (25. Feb. 2016) we'll leave it unused.
+            #my @cmd = ('../scripts/reversion', 'release', $context->{commit});

 
 

-    unlink "version.h";
+            my @cmd = ('../scripts/reversion', 'release');
+            print "[$cwd] Running: @cmd\n" if $verbose;
+            system(@cmd) and croak "reversion failed";

 
 

-    -f "version.sh" or die "failed to create version.sh";
-}
+            die "$ME: failed to create version.sh"
+                unless -f 'version.sh';

 
 

-# ------------------------------------------------------------------
+            exit 0;
+        }
+        else {
+            $pid == waitpid($pid, 0) or die "$0: waidpid: $!\n";
+            exit $? >> 8 if $?;
+        }
+    }

 
 

-sub build_html_documentation {
-    my $context = shift;
+    sub build_documentation {
+        my $context = shift;
+        my $docdir = catdir $context->{d}{vcs_export}, 'doc', 'doc-docbook';
+
+        # documentation building does a chdir, so we'll do it in a
+        # subprocess
+        if (not my $pid = fork // die "$ME: Can't fork: $!\n") {
+            chdir $docdir or die "$ME: Can't chdir to $docdir: $!\n";
+            system('./OS-Fixups') == 0 or exit $?;
+            exec $context->{make_cmd},
+                "EXIM_VER=$context->{v}{release}", 'everything'
+                or die "$ME: [$cwd] Cannot exec $context->{make_cmd}: $!\n";
+        }
+        else {
+            waitpid($pid, 0);
+            exit $? >> 8 if $?;
+        }

 
 

-    my $genpath   = $context->{webgen_base} . '/script/gen.pl';
-    my $templates = $context->{webgen_base} . '/templates';
-    my $dir       = File::Spec->catdir( $context->{release_tree}, 'html' );
-    my $spec      = File::Spec->catfile( $context->{docbook}, 'spec.xml' );
-    my $filter    = File::Spec->catfile( $context->{docbook}, 'filter.xml' );
+        $context->copy_docbook_files;
+    }

 
 

-    mkdir($dir);
+    sub copy_docbook_files {
+        my $context = shift;

 
 

-    my @cmd = (
-        $genpath,   '--spec',    $spec,                '--filter',
-        $filter,    '--latest',  $context->{trelease}, '--tmpl',
-        $templates, '--docroot', $dir,                 '--localstatic'
-    );
-    push @cmd, '--verbose' if $verbose or $debug;
+        # where the generated docbook files can be found
+        my $docdir = catdir $context->{d}{vcs_export}, 'doc', 'doc-docbook';

 
 

-    print "Executing ", join( ' ', @cmd ), "\n";
-    system(@cmd);
+        foreach ('spec.xml', 'filter.xml') {
+            my $from = catfile $docdir, $_;
+            my $to = catdir $context->{d}{tmp}; # {dookbook}
+            copy $from => $to    or die $@;
+        }
+    }

 
 

-    # move directory into right place
-    my $sourcedir = File::Spec->catdir( $context->{docbook}, 'filter.xml' );
+    sub build_html_documentation {
+        my $context = shift;

 
 

-    rename(
-        File::Spec->catdir( $dir,                sprintf( 'exim-html-%s', $context->{trelease} ) ),
-        File::Spec->catdir( $context->{pkgdirs}, sprintf( 'exim-html-%s', $context->{release} ) )
-    );
-}
+        # where the website docbook source dir is - push the generated
+        # files there
+        {
+            my $webdir = catdir $context->{website_base}, 'docbook', $context->{v}{target_release};
+            make_path $webdir, { verbose => $verbose || $debug };
+            copy catfile($context->{d}{vcs_export}, 'doc', 'doc-docbook', $_)
+                => $webdir or die $@
+                for 'spec.xml', 'filter.xml';
+        }

 
 

-# ------------------------------------------------------------------
+        my $gen    = catfile $context->{website_base}, 'script/gen';
+        my $outdir = catdir $context->{d}{pkg_trees}, "exim-html-$context->{v}{release}";

 
 

-sub copy_docbook_files {
-    my $context = shift;
+        make_path $outdir, { verbose => $verbose || $debug };

 
 

-    # where the generated docbook files can be found
-    my $docdir = File::Spec->catdir( $context->{release_tree}, 'doc', 'doc-docbook' );
+        my @cmd = (
+            $gen,
+            '--spec'    => catfile($context->{d}{tmp}, 'spec.xml'),     # {dookbook}
+            '--filter'  => catfile($context->{d}{tmp}, 'filter.xml'),   # {dookbok}
+            '--latest'  => $context->{v}{target_release},
+            '--docroot' => $outdir,
+            '--localstatic',
+            ($verbose || $debug ? '--verbose' : ()),
+        );

 
 

-    # where the website docbook source dir is - push files to here
-    my $webdir = File::Spec->catdir( $context->{webgen_base}, 'docbook', $context->{trelease} );
-    mkpath( $webdir, { verbose => ( $verbose || $debug ) } );
+        print "[$cwd] Executing @cmd\n";
+        0 == system @cmd or exit $? >> 8;

 
 

-    foreach my $file ( 'spec.xml', 'filter.xml' ) {
-        my $from  = File::Spec->catfile( $docdir,             $file );
-        my $to    = File::Spec->catfile( $context->{docbook}, $file );
-        my $webto = File::Spec->catfile( $webdir,             $file );
-        copy( $from, $to );
-        copy( $from, $webto );

     }
     }

-}
-
-# ------------------------------------------------------------------

 
 

-sub build_documentation {
-    my $context = shift;
+    sub sign {
+        my $context = shift;
+        foreach my $tar (glob "$context->{d}{pkg_tars}/*") {
+            system gpg =>
+            '--quiet', '--batch',
+            defined $context->{gpg}{key}
+                ? ('--local-user' => $context->{gpg}{key})
+                : (),
+            '--detach-sig', '--armor', $tar;
+        }
+    }

 
 

-    my $docdir = File::Spec->catdir( $context->{release_tree}, 'doc', 'doc-docbook' );
-    # documentation building gets the truncated release, without RC
-    system("cd '$docdir' && ./OS-Fixups && $context->{make_cmd} EXIM_VER=$context->{trelease} everything") == 0
-      || croak "Doc build failed";
+    sub move_to_outdir {
+        my $context = shift;
+        make_path $context->{OUTDIR}, { verbose => $verbose || $debug };
+        move $_ => $context->{OUTDIR} or die $@
+            for glob "$context->{d}{pkg_tars}/*";
+    }

 
 

-    copy_docbook_files($context);
-    build_html_documentation($context) if $context->{web};
-}
+    sub build_src_package_directory {
+        my $context = shift;

 
 

-# ------------------------------------------------------------------
+        # build the exim package directory path
+        $context->{d}{src} = catdir $context->{d}{pkg_trees}, "exim-$context->{v}{release}";

 
 

-sub move_text_docs_into_pkg {
-    my $context = shift;
+        # initially we move the exim-src directory to the new directory name
+        move
+            catdir( $context->{d}{vcs_export}, 'src')
+            => $context->{d}{src}
+        or croak "Move of src dir failed - $!";

 
 

-    my $old_docdir = File::Spec->catdir( $context->{release_tree}, 'doc', 'doc-docbook' );
-    my $old_txtdir = File::Spec->catdir( $context->{release_tree}, 'doc', 'doc-txt' );
-    my $new_docdir = File::Spec->catdir( $context->{eximpkgdir}, 'doc' );
-    mkpath( $new_docdir, { verbose => ( $verbose || $debug ) } );
+        # add Local subdirectory
+        make_path( catdir( $context->{d}{src}, 'Local' ), { verbose => $verbose || $debug } );

 
 

-    # move generated documents from docbook stuff
-    foreach my $file (qw/exim.8 spec.txt filter.txt/) {
-        die "Empty file \"$file\"\n" if -z File::Spec->catfile( $old_docdir, $file );
-        move( File::Spec->catfile( $old_docdir, $file ), File::Spec->catfile( $new_docdir, $file ) );
+        # now add the text docs
+        $context->move_text_docs_into_pkg;

     }
 
     }
 

-    # move text documents across
-    foreach my $file ( glob( File::Spec->catfile( $old_txtdir, '*' ) ) ) {
-
-        # skip a few we dont want
-        my $fn = ( File::Spec->splitpath($file) )[2];
-        next
-          if ( ( $fn eq 'ABOUT' )
-            || ( $fn eq 'ChangeLog.0' )
-            || ( $fn eq 'test-harness.txt' )
-            # Debian issue re licensing of RFCs
-            || ( $fn =~ /^draft-ietf-.*/ )
-            || ( $fn =~ /^rfc.*/ )
-             );
-        move( $file, File::Spec->catfile( $new_docdir, $fn ) );
-    }
-}
-
-# ------------------------------------------------------------------
-
-sub build_pspdfinfo_directory {
-    my $context = shift;
-
-    ##foreach my $format (qw/pdf postscript texinfo info/) {
-    foreach my $format (qw/pdf postscript/) {
-        my $target = File::Spec->catdir( $context->{pkgdirs}, sprintf( 'exim-%s-%s', $format, $context->{release} ), 'doc' );
-        mkpath( $target, { verbose => ( $verbose || $debug ) } );
-
-        # move documents across
-        foreach my $file (
-            glob(
-                File::Spec->catfile(
-                    $context->{release_tree},
-                    'doc',
-                    'doc-docbook',
-                    (
-                        ( $format eq 'postscript' )
-                        ? '*.ps'
-                        : ( '*.' . $format )
+    sub build_doc_packages_directory {
+        my $context = shift;
+
+        ##foreach my $format (qw/pdf postscript texinfo info/) {
+        foreach my $format (qw/pdf postscript/) {
+            my $target = catdir $context->{d}{pkg_trees}, "exim-$format-$context->{v}{release}", 'doc';
+            make_path( $target, { verbose => $verbose || $debug } );
+
+            # move documents across
+            foreach my $file (
+                glob(
+                    catfile(
+                        $context->{d}{vcs_export},
+                        'doc',
+                        'doc-docbook',
+                        (
+                            ( $format eq 'postscript' )
+                            ? '*.ps'
+                            : ( '*.' . $format )
+                        )

                     )
                 )
             )
                     )
                 )
             )

-          )
-        {
-            move( $file, File::Spec->catfile( $target, ( File::Spec->splitpath($file) )[2] ) );
+            {
+                move( $file, catfile( $target, ( splitpath($file) )[2] ) );
+            }

         }
     }
         }
     }

-}
-
-# ------------------------------------------------------------------
-
-sub build_main_package_directory {
-    my $context = shift;
-
-    # build the exim package directory path
-    $context->{eximpkgdir} = File::Spec->catdir( $context->{pkgdirs}, sprintf( 'exim-%s', $context->{release} ) );
-
-    # initially we move the exim-src directory to the new directory name
-    rename( File::Spec->catdir( $context->{release_tree}, 'src' ), $context->{eximpkgdir} )
-      || croak "Rename of src dir failed - $!";
-
-    # add Local subdirectory
-    mkpath( File::Spec->catdir( $context->{eximpkgdir}, 'Local' ), { verbose => ( $verbose || $debug ) } );
-
-    # now add the text docs
-    move_text_docs_into_pkg($context);
-}
-
-# ------------------------------------------------------------------
-
-sub build_package_directories {
-    my $context = shift;

 
 

-    build_main_package_directory($context);
-    build_pspdfinfo_directory($context) if $context->{build_docs};
-}
-
-# ------------------------------------------------------------------
+    sub move_text_docs_into_pkg {
+        my $context = shift;

 
 

-sub do_cleanup {
-    my $context = shift;
-
-    print "Cleaning up\n" if ($verbose);
-    chdir( $context->{directory} ) || die;
-    rmtree( $context->{release_tree}, { verbose => $debug } );
-    rmtree( $context->{docbook},      { verbose => $debug } );
-    rmtree( $context->{pkgdirs},      { verbose => $debug } );
-}
+        my $old_docdir = catdir( $context->{d}{vcs_export}, 'doc', 'doc-docbook' );
+        my $old_txtdir = catdir( $context->{d}{vcs_export}, 'doc', 'doc-txt' );
+        my $new_docdir = catdir( $context->{d}{src}, 'doc' );
+        make_path( $new_docdir, { verbose => $verbose || $debug } );

 
 

-# ------------------------------------------------------------------
+        # move generated documents from docbook stuff
+        foreach my $file (qw/exim.8 spec.txt filter.txt/) {
+            die "Empty file \"$file\"\n" if -z catfile( $old_docdir, $file );
+            move( catfile( $old_docdir, $file ), catfile( $new_docdir, $file ) );
+        }

 
 

-# We prefer gtar to tar if gtar exists in $PATH
+        # move text documents across
+        foreach my $file ( glob( catfile( $old_txtdir, '*' ) ) ) {
+
+            # skip a few we dont want
+            my $fn = ( splitpath($file) )[2];
+            next
+            if ( ( $fn eq 'ABOUT' )
+                || ( $fn eq 'ChangeLog.0' )
+                || ( $fn eq 'test-harness.txt' )
+                # Debian issue re licensing of RFCs
+                || ( $fn =~ /^draft-ietf-.*/ )
+                || ( $fn =~ /^rfc.*/ )
+                );
+            move( $file, catfile( $new_docdir, $fn ) );
+        }
+    }

 
 

-sub fix_paths_tar {
-    my $context = shift;
-    my $tar = $context->{tar_cmd};
+    sub create_tar_files {
+        my $context = shift;

 
 

-    return unless $tar eq 'tar';
+        my $pkg_tars    = $context->{d}{pkg_tars};
+        my $pkg_trees = $context->{d}{pkg_trees};
+        my $tar     = $context->{tar_cmd};
+        if ($verbose) {
+            foreach my $c (keys %{ $context->{compressors} }) {
+                print "Compression: $c\t$context->{compressors}{$c}\n";
+            }
+        }

 
 

-    foreach my $d (File::Spec->path()) {
-        my $p = File::Spec->catfile($d, 'gtar');
-        if (-x $p) {
-            $context->{tar_cmd} = $p;
-            print "Switched tar command to: $p\n" if ($verbose);
-            return;
+        # We ideally do not want local system user information in release tarballs;
+        # those are artifacts of use of tar for backups and have no place in
+        # software release packaging; if someone extracts as root, then they should
+        # get sane file ownerships.
+        my @ownership = (
+            '--owner' => $context->{tar_perms}{user},
+            '--group' => $context->{tar_perms}{group},
+            # on this GNU tar, --numeric-owner works during creation too
+            '--numeric-owner'
+        ) if qx/tar --help 2>&1/ =~ /^\s*--owner=/m;
+
+        # See also environment variables set in main, tuning compression levels
+
+        my (%size, %sha256);
+
+        foreach my $dir ( glob( catdir( $pkg_trees, ( 'exim*-' . $context->{v}{release} ) ) ) ) {
+            my $dirname = ( splitdir($dir) )[-1];
+            foreach my $comp (keys %{$context->{compressors}}) {
+                my %compressor = %{$context->{compressors}{$comp}};
+                next unless $compressor{use};
+
+                my $basename = "$dirname.tar.$compressor{extension}";
+                my $outfile = catfile $pkg_tars, $basename;
+
+                print "Creating: $outfile\n" if $verbose || $debug;
+                0 == system($tar,
+                    cf => $outfile,
+                        $compressor{flags},
+                        @ownership, -C => $pkg_trees, $dirname)
+                    or exit $? >> 8;
+
+                # calculate size and md5sum
+                $size{$basename} = -s $outfile;
+                $sha256{$basename} = do {
+                    my $sha = Digest::SHA->new(256);
+                    $sha->addfile($outfile);
+                    $sha->hexdigest;
+                };
+            }

         }
         }

-    }
-}

 
 

-# ------------------------------------------------------------------
+        # write the sizes file
+        if ($context->{sizes}) {
+            open my $sizes, '>', $_ = catfile $pkg_tars, 'sizes.txt'
+                or die "$ME: Can't open `$_': $!\n";

 
 

-sub create_tar_files {
-    my $context = shift;
+            print $sizes join "\n",
+                (map { "SIZE($_) = $size{$_}" } sort keys %size),
+                (map { "SHA256($_) = $sha256{$_}" } sort keys %sha256);

 
 

-    my $pkgs    = $context->{pkgs};
-    my $pkgdirs = $context->{pkgdirs};
-    my $tar     = $context->{tar_cmd};
-    if ($verbose) {
-        foreach my $c (keys %{ $context->{compressors} }) {
-            print "Compression: $c\t$context->{compressors}{$c}\n";
+            close($sizes) or die "$ME: Can't close $_: $!\n";

         }
     }
 
         }
     }
 

-    # See also environment variables set in main, tuning compression levels
-    my @COMPRESSIONS = (
-        # compressors-dict-key, file-extension, flags-as-string
-        [ "gzip", "gz", "--gzip" ],
-        [ "bzip2", "bz2", "--bzip2" ],
-        [ "lzip", "lz", "--lzip" ],
-        [ "xz", "xz", "--xz" ],
-    );
+    sub do_cleanup {
+        my $context = shift;

 
 

-    foreach my $dir ( glob( File::Spec->catdir( $pkgdirs, ( 'exim*-' . $context->{release} ) ) ) ) {
-        my $dirname = ( File::Spec->splitdir($dir) )[-1];
-        foreach my $comp (@COMPRESSIONS) {
-            my ($compkey, $extension, $flags) = @{$comp};
-            next unless $context->{compressors}{$compkey};
-            print "Creating: ${pkgs}/${dirname}.tar.${extension}\n" if ($verbose || $debug);
-            system("$tar cf  ${pkgs}/${dirname}.tar.${extension} ${flags} --numeric-owner -C ${pkgdirs} ${dirname}");
-        }
+        print "Cleaning up\n" if $verbose;
+        remove_tree $context->{d}{tmp}, { verbose => $verbose || $debug };

     }
 
 }
 
     }
 
 }
 

-# ------------------------------------------------------------------

 MAIN: {
 
 MAIN: {
 

-    $0 =~ m|^(?:\./)?release-process/scripts/|
-    or die "$0: please call this script from the root of the Exim project sources\n";
-
-    my $context = {
+    # some of these settings are useful only if we're in the
+    # exim-projekt-root, but the check, if we're, is deferred
+    my $context = Context->new(

         pkgname     => 'exim',
         pkgname     => 'exim',

-        orig_dir    => File::Spec->curdir(),
-        tmp_dir     => File::Temp->newdir(),
-        webgen_base => "$FindBin::Bin/../../../exim-website",
+        website_base => abs_path('../exim-website'),

         tar_cmd     => 'tar',
         tar_cmd     => 'tar',

-        make_cmd    => 'make',
+        tar_perms   => {
+                user    => '0',
+                group   => '0',
+        },
+        make_cmd    => 'make',  # for 'make'ing the docs
+        sizes       => 1,

         compressors => {
         compressors => {

-                gzip    => 1,
-                bzip2   => 1,
-                xz      => 1,
-                lzip    => 0,
+            gzip  => { use => 1, extension => 'gz',  flags => '--gzip' },
+            bzip2 => { use => 1, extension => 'bz2', flags => '--bzip2' },
+            xz    => { use => 1, extension => 'xz',  flags => '--xz' },
+            lzip  => { use => 0, extension => 'lz',  flags => '--lzip' },

         },
         },

-        build_docs   => 1,
+        docs         => 1,

         web          => 1,
         web          => 1,

-    };
-    my $delete;
-    my $cleanup = 1;
+        delete       => 0,
+        cleanup      => 1,
+        gpg => {
+            sign         => 1,
+            key          => undef,
+        },
+        quick => 0,
+    );
+

     ##$ENV{'PATH'} = '/opt/local/bin:' . $ENV{'PATH'};
     # We are creating files for mass distribution, so work harder to make smaller files.
     ##$ENV{'PATH'} = '/opt/local/bin:' . $ENV{'PATH'};
     # We are creating files for mass distribution, so work harder to make smaller files.

-    $ENV{'GZIP'} = '-9';
-    $ENV{'BZIP2'} = '-9';
+    $ENV{GZIP} = -9;
+    $ENV{BZIP2} = -9;

     # xz documents minimum file sizes for levels higher than -6 to be useful and each
     # requires more RAM on the decompressing system.  Exim tarball currently 24MiB so
     # using -8.
     # xz documents minimum file sizes for levels higher than -6 to be useful and each
     # requires more RAM on the decompressing system.  Exim tarball currently 24MiB so
     # using -8.

-    $ENV{'XZ_DEFAULTS'} = '-8';
+    $ENV{XZ_DEFAULTS} = -8;

 
     GetOptions(
 
     GetOptions(

-        'directory=s'   => \$context->{directory},
-        'webgen_base=s' => \$context->{webgen_base},
-        'tar=s'         => \$context->{tar_cmd},
-        'make=s'        => \$context->{make_cmd},
-        'lzip!'         => \$context->{compressors}{lzip},
+        $context,
+        qw(workspace|tmp=s website_base|webgen_base=s tar_cmd|tar-cmd=s make_cmd|make-cmd=s
+           docs|build-docs! web|build-web! sizes!
+           delete! cleanup! quick|quick-release! minimal),
+        'sign!'         => \$context->{gpg}{sign},
+        'key=s'         => \$context->{gpg}{key},

         'verbose!'      => \$verbose,
         'verbose!'      => \$verbose,

-        'debug!'        => \$debug,
+        'compressors=s@' => sub {
+            die "$0: can't parse compressors string `$_[1]'\n" unless $_[1] =~ /^[+=-]?\w+(?:[+=-]\w+)*$/;
+            while ($_[1] =~ /(?<act>[+=-])?(?<name>\w+)\b/g) {
+                die "$0: Unknown compressor $+{name}"
+                    unless $context->{compressors}{$+{name}};
+                if (not defined $+{act} or $+{act} eq '=') {
+                    $_->{use} = 0
+                        for values %{$context->{compressors}};
+                    $context->{compressors}{$+{name}}{use}++;
+                }
+                elsif ($+{act} eq '+') { $context->{compressors}{$+{name}}{use}++; }
+                elsif ($+{act} eq '-') { $context->{compressors}{$+{name}}{use}--; }
+            }
+        },
+        'debug:s'       => \$debug,
+        'quick'         => sub { $context->{web}--; $context->{quick} = 1 },

         'help|?'        => sub { pod2usage(-verbose => 1, -exit => 0) },
         'man!'          => sub { pod2usage(-verbose => 2, -exit => 0, -noperldoc => system('perldoc -V >/dev/null 2>&1')) },
         'help|?'        => sub { pod2usage(-verbose => 1, -exit => 0) },
         'man!'          => sub { pod2usage(-verbose => 2, -exit => 0, -noperldoc => system('perldoc -V >/dev/null 2>&1')) },

-        'delete!'       => \$delete,
-        'cleanup!'      => \$cleanup,
-        'build-docs!'   => \$context->{build_docs},
-        'web!'          => \$context->{web},
-    ) and @ARGV == 1 or pod2usage;
-
-    umask(022);
-    get_and_check_version( shift, $context );
-    fix_paths_tar($context);
-    $context->{tag} = build_tag($context);
-    deal_with_working_directory( $context, $delete );
-    export_git_tree($context);
-    chdir( $context->{directory} ) || die;
-    unpack_tree($context);
-    make_version_script($context);
-    build_documentation($context) if $context->{build_docs};
-    build_package_directories($context);
-    create_tar_files($context);
-    do_cleanup($context) if ($cleanup);
+    ) and (@ARGV == 2 or ($context->{quick} and @ARGV >= 1))
+        or pod2usage;
+
+    -f '.exim-project-root'
+        or die "$ME: please call this script from the root of the Exim project sources\n";
+
+    $context->{OUTDIR} = pop @ARGV;
+
+    if ($context->{gpg}{sign}) {
+        $context->{gpg}{key} //= do { chomp($_ = qx/git config user.signingkey/); $_ }
+            || $ENV{EXIM_KEY}
+            || do {
+                warn "$ME: No GPG key, using default\n";
+                undef;
+            }
+    }
+
+
+    warn "$ME: changed umask to 022\n" if umask(022) != 022;
+
+    $context->check_version(shift); # may be undef for a quick release
+
+    if ($debug//'' eq 'version') {
+        for (sort keys %{$context->{v}}) {
+            print "version $_: $context->{v}{$_}\n";
+        }
+        print "git commit: $context->{commit}\n";
+        exit 0;
+    }
+    $context->override_tar_cmd;
+    $context->prepare_working_directory;
+    $context->export_git_tree;
+    $context->unpack_tree;
+    $context->make_version_script;
+
+    $context->build_documentation if $context->{docs};
+    $context->build_html_documentation if $context->{docs} && $context->{web};
+
+    $context->build_src_package_directory;
+    $context->build_doc_packages_directory if $context->{docs};
+
+    $context->create_tar_files;
+    $context->sign if $context->{gpg}{sign};
+    $context->move_to_outdir;
+    $context->do_cleanup if $context->{cleanup};
+
+    ### $context

 }
 
 1;
 }
 
 1;


@@ -456,7 +660,8 @@ mk_exim_release - Build an exim release
 
 =head1 SYNOPSIS
 
 
 =head1 SYNOPSIS
 

- mk_exim_release [options] version
+ mk_exim_release [options] version PKG-DIRECTORY
+ mk_exim_release [options] --quick [version] PKG-DIRECTORY

 
 =head1 DESCRIPTION
 
 
 =head1 DESCRIPTION
 


@@ -464,7 +669,9 @@ B<mk_exim_release> builds an exim release.
 
 Starting in a populated git repo that has already been tagged for
 release it builds docs, packages etc.  Parameter is the version number
 
 Starting in a populated git repo that has already been tagged for
 release it builds docs, packages etc.  Parameter is the version number

-to build as - ie 4.72 4.72RC1, 4.86.1, etc
+to build as - ie 4.72 4.72-RC1, 4.86.1, etc, without any prefix.
+
+This scripts expects to find a tag "exim-<version>".

 
 After creating the release files, they should be signed. There is another
 helper for creating the signatures:
 
 After creating the release files, they should be signed. There is another
 helper for creating the signatures:


@@ -472,56 +679,114 @@ F<release-process/scripts/sign_exim_packages>.
 
 Call B<mk_exim_release> about like this:
 
 
 Call B<mk_exim_release> about like this:
 

-    release-process/scripts/mk_exim_release 4.99
+    release-process/scripts/mk_exim_release 4.99 OUT-DIR

 
 
 =head1 OPTIONS
 
 =over 4
 
 
 
 =head1 OPTIONS
 
 =over 4
 

-=item B<--[no]debug>
+=item B<--[no]cleanup>
+
+Do (or do not) cleanup the tmp directory at exit (default: do cleanup)
+
+=item B<--compressors> [I<action>]I<compressor[I<action>$<compressor>]...
+
+A list of compressors to use. Currently the default list is
+B<gzip>, B<xz>, and B<bzip2>, with B<lzip> optionally to be enabled.
+
+I<action> can be "+" (add), "-" (remove), and "=" (set).
+
+=item B<--debug[=I<item>]>
+
+Forces debug mode. If (default: no debug info)
+
+=over 4
+
+=item item: B<version>

 
 

-Forces debug mode. (default: no debug info)
+Output the parsed/found version number and exit.
+
+=back

 
 =item B<--[no]delete>
 
 
 =item B<--[no]delete>
 

-Delete a pre-existing package directory at start. (default: don't delete)
+Delete a pre-existing tmp- and package-directory at start. (default: don't delete)

 
 

-=item B<--directory> I<dir>
+=item B<--[no]doc>

 
 

-Change the name of the package directory (default: F<< exim-packaging-<version> >>)
+Do (not) build the documentation. This needs C<gnu-make> (default: build the docs)

 
 =item B<--[no]help>
 
 Display short help and exit cleanly. (default: don't do that)
 
 
 =item B<--[no]help>
 
 Display short help and exit cleanly. (default: don't do that)
 

-=item B<--[no]lzip>
+=item B<--key> I<GPG key>
+
+Use this GPG key for signing. If nothing is specified the first one of this list
+is used:

 
 

-Control the creation of B<lzip> tarballs. (default: do not use lzip)
+=over 8

 
 

-=item B<--make> I<cmd>
+=item - git config user.signingkey
+
+=item - environment C<EXIM_KEY>
+
+=item - default GPG key
+
+=back
+
+=item B<--make-cmd> I<cmd>

 
 Force the use of a specific C<make> command. This may be necessary if C<make> is not
 
 Force the use of a specific C<make> command. This may be necessary if C<make> is not

-C<gmake> (default: C<make>)
+C<gmake>. This is necessary to build the docs. (default: C<make>)

 
 =item B<--[no]man>
 
 Display man page and exit cleanly. (default: don't do that)
 
 
 =item B<--[no]man>
 
 Display man page and exit cleanly. (default: don't do that)
 

-=item B<--tar> I<cmd>
+=item B<--quick>
+
+Create a quick release. The I<version> mandatory argument needs to be a git commit-ish.
+(try I<master> or I<HEAD> or similar). This mode switches off the
+website creation (which can be enabled by B<--web> again).
+
+=item B<--[no]sign>
+
+Sign the created archive files (and the sizes.txt). (default: sign)
+
+=item B<--[no]sizes>
+
+Write the sizes information to F<sizes.txt>. (default: write sizes)
+
+=item B<--tar-cmd> I<cmd>

 
 Use to override the path to the C<tar> command.  Need GNU tar in case
 I<lzip> is selected. (default: C<gtar>, if not found, use C<tar>)
 
 
 Use to override the path to the C<tar> command.  Need GNU tar in case
 I<lzip> is selected. (default: C<gtar>, if not found, use C<tar>)
 

-=item B<--[no]web>
+=item B<--tmpdir> I<dir>

 
 

-Control the creation of the website. For creation of the website, the F<../exim-website>
-directory must exist. (default: create the website)
+Change the name of the tmp directory (default: temporary directory)

 
 =item B<--verbose>
 
 Force verbose mode. (default: no verbosity)
 
 
 =item B<--verbose>
 
 Force verbose mode. (default: no verbosity)
 

+=item B<--[no]web>
+
+Control the creation of the website. For creation of the website, the F<../exim-website>
+(but see the B<website-base> option) directory must exist. (default: create the website, except when
+in B<quick> mode)
+
+=item B<--website-base> I<dir>
+
+Base directory for the web site generation (default: F<../exim-website>)
+
+=item B<-workspace>|B<--tmp> I<directory>
+
+During release gerneration temporary storage is necessary. (default: F<exim-packaging-XXXX>
+under your system's default temporary directory (typically this is F</tmp>)).
+

 =back
 
 =head1 AUTHOR
 =back
 
 =head1 AUTHOR