Add alerting feature - warn if the resulting GIF is too large for twitter or other threasholds.

plugins/available/v2gif.plugin.bash

@@ -14,10 +14,11 @@ function v2gif {
   param '1: MOV/AVI/MP4 file name(s)'
   param '2: -w <num> ; Optional: max width in pixels'
   param '3: -l <num> ; Optional: extra lossy level for smaller files (80-200 make sense, needs giflossy instead of gifsicle)'
-  param '4: -h       ; Optional: high quality using gifski (installed seperately)'
+  param '4: -h       ; Optional: high quality using gifski (installed seperately) - overrides "--lossy" above!'
   param '5: -d       ; Optional: delete the original video file if succeeded'
   param '6: -t       ; Optional: Tag the result with quality stamp for comparison use'
   param '7: -f <num> ; Optional: Change number of frames per second (default 10)'
+  param '8: -a <num> ; Optional: Alert if resulting file is over <num> kilobytes (default is 5000, 0 turns off)'
   example '$ v2gif foo.mov'
   example '$ v2gif foo.mov -w 600'
   example '$ v2gif -l 100 -d *.mp4'
@@ -25,7 +26,7 @@ function v2gif {
   example '$ v2gif -thw 600 *.avi *.mov'
 
   # Parse the options
-  args=$(getopt -l "lossy:" -l "width:" -l del,delete -l high -l tag -l "fps:" -o "l:w:f:dht" -- "$@")
+  args=$(getopt -l "alert:" -l "lossy:" -l "width:" -l del,delete -l high -l tag -l "fps:" -o "a:l:w:f:dht" -- "$@")
 
   use_gifski=""
   del_after=""
@@ -35,6 +36,7 @@ function v2gif {
   giftagopt=""
   giftag=""
   fps=10
+  alert=5000
   eval set -- "$args"
   while [ $# -ge 1 ]; do
     case "$1" in
@@ -77,6 +79,11 @@ function v2gif {
         giftag="${giftag}-f$2"
         shift 2
         ;;
+      -a|--alert)
+        # set size alert
+        alert="$2"
+        shift 2
+        ;;
     esac
   done
 
@@ -110,6 +117,15 @@ function v2gif {
 
     rm v2gif-tmp-*.png
 
+    # Checking if the file is bigger than Twitter likes and warn
+    if [[ $alert -gt 0 ]] ; then
+      out_size=$(wc --bytes < $output_file)
+      if [[ $out_size -gt $(( alert * 1000 )) ]] ; then
+        echo "$(tput setaf 3)Warning: $output_file is $((out_size/1000))kb, keeping $file even if --del requested.$(tput sgr 0)"
+        del_after=""
+      fi
+    fi
+
     [[ "$del_after" = "true" ]] && rm $file
 
   done