local $/ = "\n";
my $info = <$r>;
defined $info or die "EOF from fast-import / cat-blob: $!";
- $info =~ /\A[a-f0-9]{40} blob (\d+)\n\z/ or return;
+ $info =~ /\A[a-f0-9]{40} blob ([0-9]+)\n\z/ or return;
my $left = $1;
my $offset = 0;
my $buf = '';
"$ts $zone";
}
-sub extract_author_info ($) {
+sub extract_cmt_info ($) {
my ($mime) = @_;
my $sender = '';
$name = '';
warn "no name in From: $from or Sender: $sender\n";
}
- ($name, $email);
+
+ my $hdr = $mime->header_obj;
+
+ my $subject = $hdr->header('Subject');
+ $subject = '(no subject)' unless defined $subject;
+ # Mime decoding can create nulls replace them with spaces to protect git
+ $subject =~ tr/\0/ /;
+ utf8::encode($subject);
+ my $at = git_timestamp(my @at = msg_datestamp($hdr));
+ my $ct = git_timestamp(my @ct = msg_timestamp($hdr));
+ ($name, $email, $at, $ct, $subject);
}
# kill potentially confusing/misleading headers
sub add {
my ($self, $mime, $check_cb) = @_; # mime = Email::MIME
- my ($name, $email) = extract_author_info($mime);
- my $hdr = $mime->header_obj;
- my @at = msg_datestamp($hdr);
- my @ct = msg_timestamp($hdr);
- my $author_time_raw = git_timestamp(@at);
- my $commit_time_raw = git_timestamp(@ct);
-
- my $subject = $mime->header('Subject');
- $subject = '(no subject)' unless defined $subject;
- # Mime decoding can create nulls replace them with spaces to protect git
- $subject =~ tr/\0/ /;
- utf8::encode($subject);
-
+ my ($name, $email, $at, $ct, $subject) = extract_cmt_info($mime);
my $path_type = $self->{path_type};
my $path;
if ($path_type eq '2/38') {
}
my $blob = $self->{mark}++;
- my $str = $mime->as_string;
- my $n = length($str);
+ my $raw_email = $mime->{-public_inbox_raw} // $mime->as_string;
+ my $n = length($raw_email);
$self->{bytes_added} += $n;
print $w "blob\nmark :$blob\ndata ", $n, "\n" or wfail;
- print $w $str, "\n" or wfail;
+ print $w $raw_email, "\n" or wfail;
# v2: we need this for Xapian
if ($self->{want_object_info}) {
my $oid = $self->get_mark(":$blob");
- $self->{last_object} = [ $oid, $n, \$str ];
+ $self->{last_object} = [ $oid, $n, \$raw_email ];
}
my $ref = $self->{ref};
my $commit = $self->{mark}++;
}
print $w "commit $ref\nmark :$commit\n",
- "author $name <$email> $author_time_raw\n",
- "committer $self->{ident} $commit_time_raw\n" or wfail;
+ "author $name <$email> $at\n",
+ "committer $self->{ident} $ct\n" or wfail;
print $w "data ", (length($subject) + 1), "\n",
$subject, "\n\n" or wfail;
if ($tip ne '') {
"$dt.$b64" . '@z';
}
-sub clean_purge_buffer {
- my ($oids, $buf) = @_;
- my $cmt_msg = 'purged '.join(' ',@$oids)."\n";
+sub rewrite_commit ($$$$) {
+ my ($self, $oids, $buf, $mime) = @_;
+ my ($name, $email, $at, $ct, $subject);
+ if ($mime) {
+ ($name, $email, $at, $ct, $subject) = extract_cmt_info($mime);
+ } else {
+ $name = $email = '';
+ $subject = 'purged '.join(' ', @$oids);
+ }
@$oids = ();
-
+ $subject .= "\n";
foreach my $i (0..$#$buf) {
my $l = $buf->[$i];
- if ($l =~ /^author .* (\d+ [\+-]?\d+)$/) {
- $buf->[$i] = "author <> $1\n";
- } elsif ($l =~ /^data (\d+)/) {
- $buf->[$i++] = "data " . length($cmt_msg) . "\n";
- $buf->[$i] = $cmt_msg;
+ if ($l =~ /^author .* ([0-9]+ [\+-]?[0-9]+)$/) {
+ $at //= $1;
+ $buf->[$i] = "author $name <$email> $at\n";
+ } elsif ($l =~ /^committer .* ([0-9]+ [\+-]?[0-9]+)$/) {
+ $ct //= $1;
+ $buf->[$i] = "committer $self->{ident} $ct\n";
+ } elsif ($l =~ /^data ([0-9]+)/) {
+ $buf->[$i++] = "data " . length($subject) . "\n";
+ $buf->[$i] = $subject;
last;
}
}
}
-sub purge_oids {
- my ($self, $purge) = @_;
- my $tmp = "refs/heads/purge-".((keys %$purge)[0]);
+# returns the new commit OID if a replacement was done
+# returns undef if nothing was done
+sub replace_oids {
+ my ($self, $mime, $replace_map) = @_; # oid => raw string
+ my $tmp = "refs/heads/replace-".((keys %$replace_map)[0]);
my $old = $self->{'ref'};
my $git = $self->{git};
my @export = (qw(fast-export --no-data --use-done-feature), $old);
my $rd = $git->popen(@export);
my ($r, $w) = $self->gfi_start;
my @buf;
- my $npurge = 0;
+ my $nreplace = 0;
my @oids;
my ($done, $mark);
my $tree = $self->{-tree};
@buf = ();
}
push @buf, "commit $tmp\n";
- } elsif (/^data (\d+)/) {
+ } elsif (/^data ([0-9]+)/) {
# only commit message, so $len is small:
my $len = $1; # + 1 for trailing "\n"
push @buf, $_;
} elsif (/^M 100644 ([a-f0-9]+) (\w+)/) {
my ($oid, $path) = ($1, $2);
$tree->{$path} = 1;
- if ($purge->{$oid}) {
+ my $sref = $replace_map->{$oid};
+ if (defined $sref) {
push @oids, $oid;
- my $cmd = "M 100644 inline $path\ndata 0\n\n";
- push @buf, $cmd;
+ my $n = length($$sref);
+ push @buf, "M 100644 inline $path\ndata $n\n";
+ push @buf, $$sref; # hope CoW works...
+ push @buf, "\n";
} else {
push @buf, $_;
}
push @buf, $_ if $tree->{$path};
} elsif ($_ eq "\n") {
if (@oids) {
- my $out = join('', @buf);
- $out =~ s/^/# /sgm;
- warn "purge rewriting\n", $out, "\n";
- clean_purge_buffer(\@oids, \@buf);
- $npurge++;
+ if (!$mime) {
+ my $out = join('', @buf);
+ $out =~ s/^/# /sgm;
+ warn "purge rewriting\n", $out, "\n";
+ }
+ rewrite_commit($self, \@oids, \@buf, $mime);
+ $nreplace++;
}
$w->print(@buf, "\n") or wfail;
@buf = ();
} elsif ($_ eq "done\n") {
$done = 1;
- } elsif (/^mark :(\d+)$/) {
+ } elsif (/^mark :([0-9]+)$/) {
push @buf, $_;
$mark = $1;
} else {
$w->print(@buf) or wfail;
}
die 'done\n not seen from fast-export' unless $done;
- chomp(my $cmt = $self->get_mark(":$mark")) if $npurge;
+ chomp(my $cmt = $self->get_mark(":$mark")) if $nreplace;
$self->{nchg} = 0; # prevent _update_git_info until update-ref:
$self->done;
my @git = ('git', "--git-dir=$git->{git_dir}");
- run_die([@git, qw(update-ref), $old, $tmp]) if $npurge;
+ run_die([@git, qw(update-ref), $old, $tmp]) if $nreplace;
run_die([@git, qw(update-ref -d), $tmp]);
- return if $npurge == 0;
+ return if $nreplace == 0;
run_die([@git, qw(-c gc.reflogExpire=now gc --prune=all)]);
+
+ # check that old OIDs are gone
my $err = 0;
- foreach my $oid (keys %$purge) {
+ foreach my $oid (keys %$replace_map) {
my @info = $git->check($oid);
if (@info) {
- warn "$oid not purged\n";
+ warn "$oid not replaced\n";
$err++;
}
}
_update_git_info($self, 0);
- die "Failed to purge $err object(s)\n" if $err;
+ die "Failed to replace $err object(s)\n" if $err;
$cmt;
}