add script to add transmission files into git-annex

doc/tips/transmission_integration.sh

@@ -0,0 +1,44 @@
+#! /bin/sh
+
+# This simple script will make sure files downloaded by the
+# [Transmission BitTorrent client](https://www.transmissionbt.com/) will
+# be added into git-annex.
+#
+# To enable it, install it to /usr/local/bin and add the following to
+# your settings.json:
+#    "script-torrent-done-enabled": true,
+#    "script-torrent-done-filename": "/usr/local/bin/transmission-git-annex-add",
+# -- [[anarcat]]
+
+set -e
+
+# environment from transmission:
+# TR_APP_VERSION
+# TR_TIME_LOCALTIME
+# TR_TORRENT_DIR
+# TR_TORRENT_HASH
+# TR_TORRENT_ID
+# TR_TORRENT_NAME
+# source: https://trac.transmissionbt.com/wiki/Scripts
+
+if [ -z "$TR_APP_VERSION" ]; then
+  echo "missing expected $TR_APP_VERSION from Transmission"
+  exit 1
+fi
+
+message="transmission adding torrent '$TR_TORRENT_NAME'
+
+TR_APP_VERSION: $TR_APP_VERSION
+TR_TIME_LOCALTIME: $TR_TIME_LOCALTIME
+TR_TORRENT_DIR: $TR_TORRENT_DIR
+TR_TORRENT_HASH: $TR_TORRENT_HASH
+TR_TORRENT_ID: $TR_TORRENT_ID
+TR_TORRENT_NAME: $TR_TORRENT_NAME
+"
+
+echo $message
+cd "$TR_TORRENT_DIR"
+git annex add "$TR_TORRENT_NAME" && \
+git commit -F- <<EOF
+$message
+EOF