use PublicInbox::Spawn qw(spawn);
use PublicInbox::MID qw(mids mid_mime mid2path);
use PublicInbox::Address;
-use PublicInbox::MsgTime qw(msg_timestamp);
+use PublicInbox::MsgTime qw(msg_timestamp msg_datestamp);
use PublicInbox::ContentId qw(content_digest);
+use PublicInbox::MDA;
sub new {
my ($class, $git, $name, $email, $ibx) = @_;
my ($r, $w) = $self->gfi_start;
my $tip = $self->{tip};
if ($path_type eq '2/38') {
- $path = mid2path(mid_mime($mime));
+ $path = mid2path(v1_mid0($mime));
($err, $cur) = check_remove_v1($r, $w, $tip, $path, $mime);
return ($err, $cur) if $err;
} else {
(($self->{tip} = ":$commit"), $cur);
}
-sub parse_date ($) {
- my ($mime) = @_;
- my ($ts, $zone) = msg_timestamp($mime->header_obj);
+sub git_timestamp {
+ my ($ts, $zone) = @_;
$ts = 0 if $ts < 0; # git uses unsigned times
"$ts $zone";
}
($name, $email);
}
+# kill potentially confusing/misleading headers
+sub drop_unwanted_headers ($) {
+ my ($mime) = @_;
+
+ $mime->header_set($_) for qw(bytes lines content-length status);
+ $mime->header_set($_) for @PublicInbox::MDA::BAD_HEADERS;
+}
+
+# used by V2Writable, too
+sub append_mid ($$) {
+ my ($hdr, $mid0) = @_;
+ # @cur is likely empty if we need to call this sub, but it could
+ # have random unparseable crap which we'll preserve, too.
+ my @cur = $hdr->header_raw('Message-ID');
+ $hdr->header_set('Message-ID', @cur, "<$mid0>");
+}
+
+sub v1_mid0 ($) {
+ my ($mime) = @_;
+ my $hdr = $mime->header_obj;
+ my $mids = mids($hdr);
+
+ if (!scalar(@$mids)) { # spam often has no Message-Id
+ my $mid0 = digest2mid(content_digest($mime));
+ append_mid($hdr, $mid0);
+ return $mid0;
+ }
+ $mids->[0];
+}
+
# returns undef on duplicate
# returns the :MARK of the most recent commit
sub add {
my ($self, $mime, $check_cb) = @_; # mime = Email::MIME
my ($name, $email) = extract_author_info($mime);
- my $date_raw = parse_date($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;
my $path_type = $self->{path_type};
my $path;
if ($path_type eq '2/38') {
- my $mids = mids($mime->header_obj);
- if (!scalar(@$mids)) {
- my $dig = content_digest($mime);
- @$mids = (digest2mid($dig));
- }
- $path = mid2path($mids->[0]);
+ $path = mid2path(v1_mid0($mime));
} else { # v2 layout, one file:
$path = 'm';
}
_check_path($r, $w, $tip, $path) and return;
}
- # kill potentially confusing/misleading headers
- $mime->header_set($_) for qw(bytes lines content-length status);
+ drop_unwanted_headers($mime);
# spam check:
if ($check_cb) {
utf8::encode($subject);
print $w "commit $ref\nmark :$commit\n",
- "author $name <$email> $date_raw\n",
- "committer $self->{ident} ", now_raw(), "\n" or wfail;
+ "author $name <$email> $author_time_raw\n",
+ "committer $self->{ident} $commit_time_raw\n" or wfail;
print $w "data ", (length($subject) + 1), "\n",
$subject, "\n\n" or wfail;
if ($tip ne '') {
$self->{tip} = ":$commit";
}
-sub run_die ($;$) {
- my ($cmd, $env) = @_;
- my $pid = spawn($cmd, $env, undef);
+sub run_die ($;$$) {
+ my ($cmd, $env, $rdr) = @_;
+ my $pid = spawn($cmd, $env, $rdr);
defined $pid or die "spawning ".join(' ', @$cmd)." failed: $!";
waitpid($pid, 0) == $pid or die join(' ', @$cmd) .' did not finish';
$? == 0 or die join(' ', @$cmd) . " failed: $?\n";
$b64 . '@localhost';
}
+sub clean_purge_buffer {
+ my ($oid, $buf) = @_;
+ my $cmt_msg = "purged $oid\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] = $cmt_msg;
+ last;
+ }
+ }
+}
+
+sub purge_oids {
+ my ($self, $purge) = @_;
+ my $tmp = "refs/heads/purge-".((keys %$purge)[0]);
+ my $old = $self->{'ref'};
+ my $git = $self->{git};
+ my @export = (qw(fast-export --no-data --use-done-feature), $old);
+ my ($rd, $pid) = $git->popen(@export);
+ my ($r, $w) = $self->gfi_start;
+ my @buf;
+ my $npurge = 0;
+ while (<$rd>) {
+ if (/^reset (?:.+)/) {
+ push @buf, "reset $tmp\n";
+ } elsif (/^commit (?:.+)/) {
+ if (@buf) {
+ $w->print(@buf) or wfail;
+ @buf = ();
+ }
+ push @buf, "commit $tmp\n";
+ } elsif (/^data (\d+)/) {
+ # only commit message, so $len is small:
+ my $len = $1; # + 1 for trailing "\n"
+ push @buf, $_;
+ my $n = read($rd, my $buf, $len) or die "read: $!";
+ $len == $n or die "short read ($n < $len)";
+ push @buf, $buf;
+ } elsif (/^M 100644 ([a-f0-9]+) /) {
+ my $oid = $1;
+ if ($purge->{$oid}) {
+ my $lf = <$rd>;
+ if ($lf eq "\n") {
+ my $out = join('', @buf);
+ $out =~ s/^/# /sgm;
+ warn "purge rewriting\n", $out, "\n";
+ clean_purge_buffer($oid, \@buf);
+ $out = join('', @buf);
+ $w->print(@buf, "\n") or wfail;
+ @buf = ();
+ $npurge++;
+ } else {
+ die "expected LF: $lf\n";
+ }
+ } else {
+ push @buf, $_;
+ }
+ } else {
+ push @buf, $_;
+ }
+ }
+ if (@buf) {
+ $w->print(@buf) or wfail;
+ }
+ $w = $r = undef;
+ $self->done;
+ my @git = ('git', "--git-dir=$git->{git_dir}");
+
+ run_die([@git, qw(update-ref), $old, $tmp]) if $npurge;
+
+ run_die([@git, qw(update-ref -d), $tmp]);
+
+ return if $npurge == 0;
+
+ run_die([@git, qw(-c gc.reflogExpire=now gc --prune=all)]);
+ my $err = 0;
+ foreach my $oid (keys %$purge) {
+ my @info = $git->check($oid);
+ if (@info) {
+ warn "$oid not purged\n";
+ $err++;
+ }
+ }
+ die "Failed to purge $err object(s)\n" if $err;
+}
+
1;
__END__
=pod