package PublicInbox::SolverGit;
use strict;
use warnings;
-use File::Temp qw();
+use File::Temp 0.19 ();
use Fcntl qw(SEEK_SET);
use PublicInbox::Git qw(git_unquote git_quote);
use PublicInbox::MsgIter qw(msg_iter msg_part_text);
# smsg => PublicInbox::SearchMsg object containing diff
# path_a => pre-image path
# path_b => post-image path
+# n => numeric path of the patch (relative to worktree)
# }
# don't bother if somebody sends us a patch with these path components,
# start writing the diff out to a tempfile
- my $pn = ++$self->{tot};
- open($tmp, '>', $self->{tmp}->dirname . "/$pn") or
+ my $path = ++$self->{tot};
+ $di->{n} = $path;
+ open($tmp, '>', $self->{tmp}->dirname . "/$path") or
die "open(tmp): $!";
push @$hdr_lines, $l;
join('', map { qq( dfn:"$_") } split(/\.\./, $_[0]));
}
-sub find_extract_diff ($$$) {
+sub find_extract_diffs ($$$) {
my ($self, $ibx, $want) = @_;
my $srch = $ibx->search or return;
my $msgs = $srch->query($q, { relevance => 1 });
my $re = qr/\Aindex ($pre[a-f0-9]*)\.\.($post[a-f0-9]*)(?: ([0-9]+))?/;
- my $di;
+ my @di;
foreach my $smsg (@$msgs) {
$ibx->smsg_mime($smsg) or next;
msg_iter(delete($smsg->{mime}), sub {
- $di ||= extract_diff($self, $_[0], $re, $ibx, $smsg);
+ my $di = extract_diff($self, $_[0], $re, $ibx, $smsg);
+ push @di, $di if defined($di);
});
- return $di if $di;
}
+ @di ? \@di : undef;
}
sub prepare_index ($) {
});
}
+sub oids_same_ish ($$) {
+ (index($_[0], $_[1]) == 0) || (index($_[1], $_[0]) == 0);
+}
+
+sub skip_identical ($$$) {
+ my ($self, $patches, $cur_oid_b) = @_;
+ while (my $nxt = $patches->[0]) {
+ if (oids_same_ish($cur_oid_b, $nxt->{oid_b})) {
+ dbg($self, 'skipping '.di_url($self, $nxt).
+ " for $cur_oid_b");
+ shift @$patches;
+ } else {
+ return;
+ }
+ }
+}
+
sub do_git_apply ($) {
my ($self) = @_;
my $dn = $self->{tmp}->dirname;
# we need --ignore-whitespace because some patches are CRLF
my @cmd = (qw(git -C), $dn, qw(apply --cached --ignore-whitespace
- --whitespace=warn --verbose));
+ --unidiff-zero --whitespace=warn --verbose));
my $len = length(join(' ', @cmd));
my $total = $self->{tot};
my $di; # keep track of the last one for "git ls-files"
+ my $prv_oid_b;
do {
my $i = ++$self->{nr};
$di = shift @$patches;
dbg($self, "\napplying [$i/$total] " . di_url($self, $di) .
"\n" . join('', @{$di->{hdr_lines}}));
- my $path = $total + 1 - $i;
+ my $path = $di->{n};
$len += length($path) + 1;
push @cmd, $path;
- } while (@$patches && $len < $ARG_SIZE_MAX);
+ $prv_oid_b = $di->{oid_b};
+ } while (@$patches && $len < $ARG_SIZE_MAX &&
+ !oids_same_ish($patches->[0]->{oid_b}, $prv_oid_b));
my $rdr = { 2 => 1 };
my $qsp = PublicInbox::Qspawn->new(\@cmd, $self->{git_env}, $rdr);
my ($bref) = @_;
dbg($self, $$bref);
if (my $err = $qsp->{err}) {
- ERR($self, "git apply error: $err");
+ my $msg = "git apply error: $err";
+ my $nxt = $patches->[0];
+ if ($nxt && oids_same_ish($nxt->{oid_b}, $prv_oid_b)) {
+ dbg($self, $msg);
+ dbg($self, 'trying '.di_url($self, $nxt));
+ } else {
+ ERR($self, $msg);
+ }
+ } else {
+ skip_identical($self, $patches, $di->{oid_b});
}
eval { start_ls_files($self, $di) };
ERR($self, $@) if $@;
# scan through inboxes to look for emails which results in
# the oid we want:
- my $di;
foreach my $ibx (@{$self->{inboxes}}) {
- $di = find_extract_diff($self, $ibx, $want) or next;
+ my $diffs = find_extract_diffs($self, $ibx, $want) or next;
- unshift @{$self->{patches}}, $di;
- dbg($self, "found $cur_want in ".di_url($self, $di));
+ unshift @{$self->{patches}}, @$diffs;
+ dbg($self, "found $cur_want in ".
+ join("\n\t", map { di_url($self, $_) } @$diffs));
# good, we can find a path to the oid we $want, now
# lets see if we need to apply more patches:
+ my $di = $diffs->[0];
my $src = $di->{oid_a};
unless ($src =~ /\A0+\z/) {