diff options
Diffstat (limited to 'contrib/fast-import/import-tars.perl')
| -rwxr-xr-x | contrib/fast-import/import-tars.perl | 117 |
1 files changed, 100 insertions, 17 deletions
diff --git a/contrib/fast-import/import-tars.perl b/contrib/fast-import/import-tars.perl index 5585a8b2c5..95438e1ed4 100755 --- a/contrib/fast-import/import-tars.perl +++ b/contrib/fast-import/import-tars.perl @@ -8,19 +8,35 @@ ## perl import-tars.perl *.tar.bz2 ## git whatchanged import-tars ## +## Use --metainfo to specify the extension for a meta data file, where +## import-tars can read the commit message and optionally author and +## committer information. +## +## echo 'This is the commit message' > myfile.tar.bz2.msg +## perl import-tars.perl --metainfo=msg myfile.tar.bz2 use strict; -die "usage: import-tars *.tar.{gz,bz2,Z}\n" unless @ARGV; +use Getopt::Long; + +my $metaext = ''; + +die "usage: import-tars [--metainfo=extension] *.tar.{gz,bz2,lzma,xz,Z}\n" + unless GetOptions('metainfo=s' => \$metaext) && @ARGV; my $branch_name = 'import-tars'; my $branch_ref = "refs/heads/$branch_name"; -my $committer_name = 'T Ar Creator'; -my $committer_email = 'tar@example.com'; +my $author_name = $ENV{'GIT_AUTHOR_NAME'} || 'T Ar Creator'; +my $author_email = $ENV{'GIT_AUTHOR_EMAIL'} || 'tar@example.com'; +my $committer_name = $ENV{'GIT_COMMITTER_NAME'} || `git config --get user.name`; +my $committer_email = $ENV{'GIT_COMMITTER_EMAIL'} || `git config --get user.email`; + +chomp($committer_name, $committer_email); open(FI, '|-', 'git', 'fast-import', '--quiet') or die "Unable to start git fast-import: $!\n"; foreach my $tar_file (@ARGV) { + my $commit_time = time; $tar_file =~ m,([^/]+)$,; my $tar_name = $1; @@ -33,13 +49,16 @@ foreach my $tar_file (@ARGV) } elsif ($tar_name =~ s/\.tar\.Z$//) { open(I, '-|', 'uncompress', '-c', $tar_file) or die "Unable to uncompress -c $tar_file: $!\n"; + } elsif ($tar_name =~ s/\.(tar\.(lzma|xz)|(tlz|txz))$//) { + open(I, '-|', 'xz', '-dc', $tar_file) + or die "Unable to xz -dc $tar_file: $!\n"; } elsif ($tar_name =~ s/\.tar$//) { open(I, $tar_file) or die "Unable to open $tar_file: $!\n"; } else { die "Unrecognized compression format: $tar_file\n"; } - my $commit_time = 0; + my $author_time = 0; my $next_mark = 1; my $have_top_dir = 1; my ($top_dir, %files); @@ -51,33 +70,96 @@ foreach my $tar_file (@ARGV) $prefix) = unpack 'Z100 Z8 Z8 Z8 Z12 Z12 Z8 Z1 Z100 Z6 Z2 Z32 Z32 Z8 Z8 Z*', $_; - last unless $name; + last unless length($name); + if ($name eq '././@LongLink') { + # GNU tar extension + if (read(I, $_, 512) != 512) { + die ('Short archive'); + } + $name = unpack 'Z257', $_; + next unless $name; + + my $dummy; + if (read(I, $_, 512) != 512) { + die ('Short archive'); + } + ($dummy, $mode, $uid, $gid, $size, $mtime, + $chksum, $typeflag, $linkname, $magic, + $version, $uname, $gname, $devmajor, $devminor, + $prefix) = unpack 'Z100 Z8 Z8 Z8 Z12 Z12 + Z8 Z1 Z100 Z6 + Z2 Z32 Z32 Z8 Z8 Z*', $_; + } + next if $name =~ m{/\z}; $mode = oct $mode; $size = oct $size; $mtime = oct $mtime; - next if $mode & 0040000; - - print FI "blob\n", "mark :$next_mark\n", "data $size\n"; - while ($size > 0 && read(I, $_, 512) == 512) { - print FI substr($_, 0, $size); - $size -= 512; + next if $typeflag == 5; # directory + + print FI "blob\n", "mark :$next_mark\n"; + if ($typeflag == 2) { # symbolic link + print FI "data ", length($linkname), "\n", $linkname; + $mode = 0120000; + } else { + print FI "data $size\n"; + while ($size > 0 && read(I, $_, 512) == 512) { + print FI substr($_, 0, $size); + $size -= 512; + } } print FI "\n"; - my $path = "$prefix$name"; + my $path; + if ($prefix) { + $path = "$prefix/$name"; + } else { + $path = "$name"; + } $files{$path} = [$next_mark++, $mode]; - $commit_time = $mtime if $mtime > $commit_time; + $author_time = $mtime if $mtime > $author_time; $path =~ m,^([^/]+)/,; $top_dir = $1 unless $top_dir; $have_top_dir = 0 if $top_dir ne $1; } + my $commit_msg = "Imported from $tar_file."; + my $this_committer_name = $committer_name; + my $this_committer_email = $committer_email; + my $this_author_name = $author_name; + my $this_author_email = $author_email; + if ($metaext ne '') { + # Optionally read a commit message from <filename.tar>.msg + # Add a line on the form "Committer: name <e-mail>" to override + # the committer and "Author: name <e-mail>" to override the + # author for this tar ball. + if (open MSG, '<', "${tar_file}.${metaext}") { + my $header_done = 0; + $commit_msg = ''; + while (<MSG>) { + if (!$header_done && /^Committer:\s+([^<>]*)\s+<(.*)>\s*$/i) { + $this_committer_name = $1; + $this_committer_email = $2; + } elsif (!$header_done && /^Author:\s+([^<>]*)\s+<(.*)>\s*$/i) { + $this_author_name = $1; + $this_author_email = $2; + } elsif (!$header_done && /^$/) { # empty line ends header. + $header_done = 1; + } else { + $commit_msg .= $_; + $header_done = 1; + } + } + close MSG; + } + } + print FI <<EOF; commit $branch_ref -committer $committer_name <$committer_email> $commit_time +0000 +author $this_author_name <$this_author_email> $author_time +0000 +committer $this_committer_name <$this_committer_email> $commit_time +0000 data <<END_OF_COMMIT_MESSAGE -Imported from $tar_file. +$commit_msg END_OF_COMMIT_MESSAGE deleteall @@ -87,14 +169,15 @@ EOF { my ($mark, $mode) = @{$files{$path}}; $path =~ s,^([^/]+)/,, if $have_top_dir; - printf FI "M %o :%i %s\n", $mode & 0111 ? 0755 : 0644, $mark, $path; + $mode = $mode & 0111 ? 0755 : 0644 unless $mode == 0120000; + printf FI "M %o :%i %s\n", $mode, $mark, $path; } print FI "\n"; print FI <<EOF; tag $tar_name from $branch_ref -tagger $committer_name <$committer_email> $commit_time +0000 +tagger $author_name <$author_email> $author_time +0000 data <<END_OF_TAG_MESSAGE Package $tar_name END_OF_TAG_MESSAGE |