+sub eml_from_path ($) {
+ my ($path) = @_;
+ if (sysopen(my $fh, $path, O_RDONLY|O_NONBLOCK)) {
+ return unless -f $fh; # no FIFOs or directories
+ my $str = do { local $/; <$fh> } or return;
+ PublicInbox::Eml->new(\$str);
+ } else { # ENOENT is common with Maildir
+ warn "failed to open $path: $!\n" if $! != ENOENT;
+ undef;
+ }
+}
+
+sub _each_maildir_eml {
+ my ($fn, $kw, $eml, $im, $self) = @_;
+ return if grep(/\Adraft\z/, @$kw);
+ if ($self && (my $filter = $self->filter($im))) {
+ my $ret = $filter->scrub($eml) or return;
+ return if $ret == REJECT();
+ $eml = $ret;
+ }
+ $im->add($eml);
+}
+
+# XXX does anybody use this?
+sub import_maildir {
+ my ($self, $dir) = @_;
+ foreach my $sub (qw(cur new tmp)) {
+ -d "$dir/$sub" or die "$dir is not a Maildir (missing $sub)\n";
+ }
+ my $im = $self->importer(1);
+ my @self = $self->filter($im) ? ($self) : ();
+ require PublicInbox::MdirReader;
+ PublicInbox::MdirReader->new->maildir_each_eml($dir,
+ \&_each_maildir_eml, $im, @self);
+ $im->done;
+}
+
+sub _mbox_eml_cb { # MboxReader->mbox* callback
+ my ($eml, $im, $filter) = @_;
+ if ($filter) {
+ my $ret = $filter->scrub($eml) or return;
+ return if $ret == REJECT();
+ $eml = $ret;
+ }
+ $im->add($eml);
+}
+
+sub import_mbox {
+ my ($self, $fh, $variant) = @_;
+ require PublicInbox::MboxReader;
+ my $cb = PublicInbox::MboxReader->reads($variant) or
+ die "$variant not supported\n";
+ my $im = $self->importer(1);
+ $cb->(undef, $fh, \&_mbox_eml_cb, $im, $self->filter);
+ $im->done;
+}
+
+sub _read_git_config_perm {
+ my ($self) = @_;
+ chomp(my $perm = $self->git->qx('config', 'core.sharedRepository'));
+ $perm;
+}
+
+sub _git_config_perm {
+ my $self = shift;
+ my $perm = scalar @_ ? $_[0] : _read_git_config_perm($self);
+ return PERM_UMASK if (!defined($perm) || $perm eq '');
+ return PERM_UMASK if ($perm eq 'umask');
+ return PERM_GROUP if ($perm eq 'group');
+ if ($perm =~ /\A(?:all|world|everybody)\z/) {
+ return PERM_EVERYBODY;
+ }
+ return PERM_GROUP if ($perm =~ /\A(?:true|yes|on|1)\z/);
+ return PERM_UMASK if ($perm =~ /\A(?:false|no|off|0)\z/);
+
+ my $i = oct($perm);
+ return PERM_UMASK if ($i == PERM_UMASK);
+ return PERM_GROUP if ($i == OLD_PERM_GROUP);
+ return PERM_EVERYBODY if ($i == OLD_PERM_EVERYBODY);
+
+ if (($i & 0600) != 0600) {
+ die "core.sharedRepository mode invalid: ".
+ sprintf('%.3o', $i) . "\nOwner must have permissions\n";
+ }
+ ($i & 0666);
+}
+
+sub _umask_for {
+ my ($perm) = @_; # _git_config_perm return value
+ my $rv = $perm;
+ return umask if $rv == 0;
+
+ # set +x bit if +r or +w were set
+ $rv |= 0100 if ($rv & 0600);
+ $rv |= 0010 if ($rv & 0060);
+ $rv |= 0001 if ($rv & 0006);
+ (~$rv & 0777);
+}
+
+sub with_umask {
+ my ($self, $cb, @arg) = @_;
+ my $old = umask($self->{umask} //= umask_prepare($self));
+ my $rv = eval { $cb->(@arg) };
+ my $err = $@;
+ umask $old;
+ die $err if $err;
+ $rv;
+}
+
+sub umask_prepare {
+ my ($self) = @_;
+ my $perm = _git_config_perm($self);
+ _umask_for($perm);
+}
+
+sub cleanup ($) {
+ delete @{$_[0]}{qw(over mm git search)};
+}
+
+# v2+ only, XXX: maybe we can just rely on ->max_git_epoch and remove
+sub git_dir_latest {
+ my ($self, $max) = @_;
+ defined($$max = $self->max_git_epoch) ?
+ "$self->{inboxdir}/git/$$max.git" : undef;
+}
+