searchidx: check for graceful shutdown in log2stack

The initial "git log" invocation for a git epoch can be time
consuming, so check for graceful shutdown at each line to ensure
timely shutdowns and avoid SSD/HDD wear.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 90d8c8b3..6ff2cf94 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -753,6 +753,7 @@ sub log2stack ($$$) {
                                 $range);
         my ($at, $ct, $stk, $cmt);
         while (<$fh>) {
+                return if $sync->{quit};
                 if (/\A([0-9]+)-([0-9]+)-($OID)$/o) {
                         ($at, $ct, $cmt) = ($1 + 0, $2 + 0, $3);
                         $stk //= PublicInbox::IdxStack->new($cmt);