Adding upstream version 1.21.22.upstream/1.21.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 283 insertions, 0 deletions

diff --git a/scripts/Dpkg/Source/Package/V3/Git.pm b/scripts/Dpkg/Source/Package/V3/Git.pm
new file mode 100644
index 0000000..721036a
--- /dev/null
+++ b/scripts/Dpkg/Source/Package/V3/Git.pm
@@ -0,0 +1,283 @@
+#
+# git support for dpkg-source
+#
+# Copyright © 2007,2010 Joey Hess <joeyh@debian.org>.
+# Copyright © 2008 Frank Lichtenheld <djpig@debian.org>
+#
+# 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
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package Dpkg::Source::Package::V3::Git;
+
+use strict;
+use warnings;
+
+our $VERSION = '0.02';
+
+use Cwd qw(abs_path getcwd);
+use File::Basename;
+use File::Spec;
+use File::Temp qw(tempdir);
+
+use Dpkg::Gettext;
+use Dpkg::ErrorHandling;
+use Dpkg::Exit qw(push_exit_handler pop_exit_handler);
+use Dpkg::Path qw(find_command);
+use Dpkg::Source::Functions qw(erasedir);
+
+use parent qw(Dpkg::Source::Package);
+
+our $CURRENT_MINOR_VERSION = '0';
+
+# Remove variables from the environment that might cause git to do
+# something unexpected.
+delete $ENV{GIT_DIR};
+delete $ENV{GIT_INDEX_FILE};
+delete $ENV{GIT_OBJECT_DIRECTORY};
+delete $ENV{GIT_ALTERNATE_OBJECT_DIRECTORIES};
+delete $ENV{GIT_WORK_TREE};
+
+sub prerequisites {
+    return 1 if find_command('git');
+    error(g_('cannot unpack git-format source package because ' .
+             'git is not in the PATH'));
+}
+
+sub _check_workdir {
+    my $srcdir = shift;
+
+    if (! -d "$srcdir/.git") {
+        error(g_('source directory is not the top directory of a git ' .
+                 'repository (%s/.git not present), but Format git was ' .
+                 'specified'), $srcdir);
+    }
+    if (-s "$srcdir/.gitmodules") {
+        error(g_('git repository %s uses submodules; this is not yet supported'),
+              $srcdir);
+    }
+
+    return 1;
+}
+
+sub _parse_vcs_git {
+    my $vcs_git = shift;
+    my ($url, $opt, $branch) = split ' ', $vcs_git;
+
+    if (defined $opt && $opt eq '-b' && defined $branch) {
+        return ($url, $branch);
+    } else {
+        return ($url);
+    }
+}
+
+my @module_cmdline = (
+    {
+        name => '--git-ref=<ref>',
+        help => N_('specify a git <ref> to include in the git bundle'),
+        when => 'build',
+    }, {
+        name => '--git-depth=<number>',
+        help => N_('create a shallow clone with <number> depth'),
+        when => 'build',
+    }
+);
+
+sub describe_cmdline_options {
+    my $self = shift;
+
+    my @cmdline = ( $self->SUPER::describe_cmdline_options(), @module_cmdline );
+
+    return @cmdline;
+}
+
+sub parse_cmdline_option {
+    my ($self, $opt) = @_;
+    return 1 if $self->SUPER::parse_cmdline_option($opt);
+    if ($opt =~ /^--git-ref=(.*)$/) {
+        push @{$self->{options}{git_ref}}, $1;
+        return 1;
+    } elsif ($opt =~ /^--git-depth=(\d+)$/) {
+        $self->{options}{git_depth} = $1;
+        return 1;
+    }
+    return 0;
+}
+
+sub can_build {
+    my ($self, $dir) = @_;
+
+    return (0, g_("doesn't contain a git repository")) unless -d "$dir/.git";
+    return 1;
+}
+
+sub do_build {
+    my ($self, $dir) = @_;
+    my $diff_ignore_regex = $self->{options}{diff_ignore_regex};
+
+    $dir =~ s{/+$}{}; # Strip trailing /
+    my ($dirname, $updir) = fileparse($dir);
+    my $basenamerev = $self->get_basename(1);
+
+    _check_workdir($dir);
+
+    my $old_cwd = getcwd();
+    chdir $dir or syserr(g_("unable to chdir to '%s'"), $dir);
+
+    # Check for uncommitted files.
+    # To support dpkg-source -i, get a list of files
+    # equivalent to the ones git status finds, and remove any
+    # ignored files from it.
+    my @ignores = '--exclude-per-directory=.gitignore';
+    my $core_excludesfile = qx(git config --get core.excludesfile);
+    chomp $core_excludesfile;
+    if (length $core_excludesfile && -e $core_excludesfile) {
+        push @ignores, "--exclude-from=$core_excludesfile";
+    }
+    if (-e '.git/info/exclude') {
+        push @ignores, '--exclude-from=.git/info/exclude';
+    }
+    open(my $git_ls_files_fh, '-|', 'git', 'ls-files', '--modified', '--deleted',
+         '-z', '--others', @ignores) or subprocerr('git ls-files');
+    my @files;
+    {
+      local $_;
+      local $/ = "\0";
+      while (<$git_ls_files_fh>) {
+          chomp;
+          if (! length $diff_ignore_regex ||
+              ! m/$diff_ignore_regex/o) {
+              push @files, $_;
+          }
+      }
+    }
+    close($git_ls_files_fh) or syserr(g_('git ls-files exited nonzero'));
+    if (@files) {
+        error(g_('uncommitted, not-ignored changes in working directory: %s'),
+              join(' ', @files));
+    }
+
+    # If a depth was specified, need to create a shallow clone and
+    # bundle that.
+    my $tmp;
+    my $shallowfile;
+    if ($self->{options}{git_depth}) {
+        chdir $old_cwd or syserr(g_("unable to chdir to '%s'"), $old_cwd);
+        $tmp = tempdir("$dirname.git.XXXXXX", DIR => $updir);
+        push_exit_handler(sub { erasedir($tmp) });
+        my $clone_dir = "$tmp/repo.git";
+        # file:// is needed to avoid local cloning, which does not
+        # create a shallow clone.
+        info(g_('creating shallow clone with depth %s'),
+                $self->{options}{git_depth});
+        system('git', 'clone', '--depth=' . $self->{options}{git_depth},
+               '--quiet', '--bare', 'file://' . abs_path($dir), $clone_dir);
+        subprocerr('git clone') if $?;
+        chdir($clone_dir)
+            or syserr(g_("unable to chdir to '%s'"), $clone_dir);
+        $shallowfile = "$basenamerev.gitshallow";
+        system('cp', '-f', 'shallow', "$old_cwd/$shallowfile");
+        subprocerr('cp shallow') if $?;
+    }
+
+    # Create the git bundle.
+    my $bundlefile = "$basenamerev.git";
+    my @bundle_arg = $self->{options}{git_ref} ?
+        (@{$self->{options}{git_ref}}) : '--all';
+    info(g_('bundling: %s'), join(' ', @bundle_arg));
+    system('git', 'bundle', 'create', "$old_cwd/$bundlefile",
+           @bundle_arg,
+           'HEAD', # ensure HEAD is included no matter what
+           '--', # avoids ambiguity error when referring to eg, a debian branch
+    );
+    subprocerr('git bundle') if $?;
+
+    chdir $old_cwd or syserr(g_("unable to chdir to '%s'"), $old_cwd);
+
+    if (defined $tmp) {
+        erasedir($tmp);
+        pop_exit_handler();
+    }
+
+    $self->add_file($bundlefile);
+    if (defined $shallowfile) {
+        $self->add_file($shallowfile);
+    }
+}
+
+sub do_extract {
+    my ($self, $newdirectory) = @_;
+    my $fields = $self->{fields};
+
+    my $basenamerev = $self->get_basename(1);
+
+    my @files = $self->get_files();
+    my ($bundle, $shallow);
+    foreach my $file (@files) {
+        if ($file =~ /^\Q$basenamerev\E\.git$/) {
+            if (! defined $bundle) {
+                $bundle = $file;
+            } else {
+                error(g_('format v3.0 (git) uses only one .git file'));
+            }
+        } elsif ($file =~ /^\Q$basenamerev\E\.gitshallow$/) {
+            if (! defined $shallow) {
+                $shallow = $file;
+            } else {
+                error(g_('format v3.0 (git) uses only one .gitshallow file'));
+            }
+        } else {
+            error(g_('format v3.0 (git) unknown file: %s'), $file);
+        }
+    }
+    if (! defined $bundle) {
+        error(g_('format v3.0 (git) expected %s'), "$basenamerev.git");
+    }
+
+    if ($self->{options}{no_overwrite_dir} and -e $newdirectory) {
+        error(g_('unpack target exists: %s'), $newdirectory);
+    } else {
+        erasedir($newdirectory);
+    }
+
+    # Extract git bundle.
+    info(g_('cloning %s'), $bundle);
+    my $bundle_path = File::Spec->catfile($self->{basedir}, $bundle);
+    system('git', 'clone', '--quiet', '--origin=bundle', $bundle_path, $newdirectory);
+    subprocerr('git bundle') if $?;
+
+    if (defined $shallow) {
+        # Move shallow info file into place, so git does not
+        # try to follow parents of shallow refs.
+        info(g_('setting up shallow clone'));
+        my $shallow_orig = File::Spec->catfile($self->{basedir}, $shallow);
+        my $shallow_dest = File::Spec->catfile($newdirectory, '.git', 'shallow');
+        system('cp', '-f',  $shallow_orig, $shallow_dest);
+        subprocerr('cp') if $?;
+    }
+
+    _check_workdir($newdirectory);
+
+    if (defined $fields->{'Vcs-Git'}) {
+        my $remote = 'origin';
+        my ($url, $head) = _parse_vcs_git($fields->{'Vcs-Git'});
+
+        my @git_remote_add = (qw(git -C), $newdirectory, qw(remote add));
+        push @git_remote_add, '-m', $head if defined $head;
+
+        info(g_('setting remote %s to %s'), $remote, $url);
+        system(@git_remote_add, $remote, $url);
+        subprocerr('git remote add') if $?;
+    }
+}
+
+1;