--- a/bin/do_idx.sh	Mon Oct 02 18:52:43 2023 +0100
+++ b/bin/do_idx.sh	Mon Oct 02 18:54:10 2023 +0100
@@ -1,14 +1,21 @@
 #!/bin/bash
+# Usage: do_idx.sh [-d...] [-m previously-merged-log] result-dir cdx-source-dir
 while [ "$1" = "-d" ]
 do
  shift
  debug="$debug -d"
 done
+if [ "$1" = "-m" ]
+then
+ shift
+ merged="-m $1"
+ shift
+fi
 export res="$1"
 orig="$2"
 # igzip was faster, but produced bigger files, so went to gzip one step
 # smaller than default (-6), which produces slightly _smaller_ blocks.
-merge_date.py $debug <(LC_ALL=C sort -m -k1,3 -s $res/ks_[0-9]*.tsv) \
+~/lib/python/cc/lmh/merge_date.py $debug $merged <(LC_ALL=C sort -m -k1,3 -s $res/ks_[0-9]*.tsv) \
               $orig $res/idx 2>$res/merge.log | \
           parallel -j 10 'echo {#} {} >$res/merge_{#}.log
                           echo $(date) {#} {}