Finally a working dvdbackup parser

scripts/dvd.video.read.sh

@@ -13,52 +13,30 @@ totalSize=$(dvdbackup -I | awk '/[MK]iB$/ { b += $2 } END { print b }')
 
 dvdbackup -p -F -n DVD \
 | tr '\r' '\n' \
-| awk -F '[ /:]+' '
-    function update() {
-      print "% " pct;
-      fflush();
+| awk -v total=$totalSize -F '[ /:()]+' '
+    function update(bytes) {
+      pct = 100 * bytes / total
+      if (pct >= nextpct) {
+        print pct
+        fflush()
+        nextpct = pct + 0.5
+      }
     }
 
-    /Found [0-9]+ VTS/ {
-      numTitles = $3;
-      title = 1;
-      pct = 0;
-      print "# I found " numTitles " titles"
-      update()
-    }
-    /Copying menu:/ {
-      # Not sure how to know in advance how many of these there will be.
-      print "# We are reading the menu: " $0
-      update();
-    }
-    /Copying Title,/ {
-      # Copying Title, part 1/5: 23% done (239/1024 MiB)
-      part = $4
-      parts = $5
-      done = $6
-      print "# Title " part " of " parts " pct " done
-      titleDone = (part * 100 - 100 + done) / parts;
-      if (titleDone < titleLast) {
-        title += 1;
+    /[MK]iB.$/ {
+      read = $(NF-3) * 1024
+      if ($(NF-1) == "MiB") {
+        read *= 1024
       }
-      titleLast = titleDone;
-      pct = (title * 100 - 100 + pctDone) / numTitles;
-      update();
-    }
-    { 
-      print "## " $0;
-      update();
+      if (read < last) {
+        totalRead += last
+      }
+      update(totalRead + read)
+      last = read
     }
     ' \
-| while read t val; do
-  case "$t" in
-    "%") 
-      setenv complete "$val" 
-      echo "Complete: $val"
-      ;;
-    *) 
-      echo "$t $val" 
-      ;;
-  esac
+| while read val; do
+  setenv complete "$val" 
+  echo "Complete: $val"
 done