Performance tunings

- make a readable layout with indents
- moved out the method definition from the while-do cycle (potential memory hog)
- raised the sleeping of a cycle to 10 minutes
- checks torrents only which are idle or downloading. It ignores paused or finished torrents.
- tries to add trackers only when the torrent has less than 10 trackers

Author: otapi

add-trackers-auto.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Get transmission credentials and ip or dns address
+auth=user:password
+host=localhost
+
+add_trackers () {
+  torrent_hash=$1
+  id=$2
+  trackerslist=/tmp/trackers.txt
+  for base_url in https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt ; do
+    if [ ! -f $trackerslist ]; then
+      curl -o "$trackerslist" "${base_url}"
+    fi
+    Local=$(wc -c < $trackerslist)
+    Remote=$(curl -sI "${base_url}" | awk '/Content-Length/ {sub("\r",""); print $2}')
+    if [ "$Local" != "$Remote" ]; then
+      curl -o "$trackerslist" "${base_url}"
+    fi
+    echo "URL for ${base_url}"
+    echo "Adding trackers for $torrent_name..."
+    for tracker in $(cat $trackerslist) ; do
+      echo -n "${tracker}..."
+      if transmission-remote "$host"  --auth="$auth" --torrent "${torrent_hash}" -td "${tracker}" | grep -q 'success'; then
+        echo ' failed.'
+      else
+        echo ' done.'
+      fi
+    done
+  done
+  sleep 3m
+  rm -f "/tmp/TTAA.$id.lock"
+}
+
+
+while true ; do
+  sleep 10m
+  # Get list of active torrents
+  ids="$(transmission-remote "$host" --auth="$auth" --list | grep -E 'Idle|Downloading' | grep '^ ' | awk '{ print $1 }')"
+  for id in $ids ; do
+      add_date="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info| grep '^  Date added: ' |cut -c 21-)"
+      add_date_t="$(date -d "$add_date" "+%Y-%m-%d %H:%M")"
+      dater="$(date "+%Y-%m-%d %H:%M")"
+      dateo="$(date -d "1 minutes ago" "+%Y-%m-%d %H:%M")"
+
+      if [ ! -f "/tmp/TTAA.$id.lock" ]; then
+        if [[ "( "$add_date_t" == "$dater" || "$add_date_t" == "$dateo" )" ]]; then
+          trackers="$(transmission-remote "$host" --auth="$auth" --torrent "$id" -it | wc -l)"
+          if [[ $trackers -lt 10 ]]; then
+            hash="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Hash: ' | awk '{ print $2 }')"
+            torrent_name="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Name: ' |cut -c 9-)"
+            touch "/tmp/TTAA.$id.lock"
+            add_trackers "$hash" "$id" &
+          fi
+        fi
+      fi
+  done
+done