Auto-import script + doc

doc/2-PI.rst

@@ -63,6 +63,35 @@ To be able to play the songs correctly, ALSA needs a bit of configuration. To do
 
   defaults.ctl.!card 1;
 
+Auto-load .song files from a USB key
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+WARNING: You first need to clone the server's repository on the Pi an open its folder (see ``3-COMPILING.rst`` for details about the procedure).
+
+First, open the ``share/import_music.sh`` to setup the copy script. You can change the following variables:
+
+``extension``
+  Extension of the song files. Default: ``"song"``.
+
+``destination``
+  Folder where to copy the files. Default: ``"/home/pi/songs"``.
+
+``user``
+  Name of the user that owns the ``destination`` folder. Default: ``"pi"``.
+
+``led``
+  LED's ``wiringpi`` GPIO identifier (to signal the script is running). Default: ``"5"``
+
+Once it's done (you can also leave the default values), copy the script to ``/usr/local/bin``, and the ``udev`` rule file to ``/etc/udev/rules.d``::
+
+  # cp share/import_music.sh /usr/local/bin/
+  # cp share/89-usbcopy.rules /etc/udev/rules.d/
+
+The system should automatically detect the new rule, and will automatically copy the .song (or whatever you want) files from a USB key/drive to the folder you choosed.
+Note that a LED should be activated during the whole operation, so don't touch the key or drive during that time.
+
+
+
 Wifi bridge setup
 -----------------
 

share/89-usbcopy.rules

@@ -0,0 +1 @@
+KERNEL=="sd[a-z]?", SUBSYSTEM=="block", ACTION=="add", RUN+="/usr/local/bin/import_music.sh %k"

share/import_music.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+######
+# Copy the $extension files from the root folder (/) 
+# of a USB key to the $destination folder
+#
+# $1 : Device's kernel name
+######
+
+extension="song"
+destination="/home/pi/songs"
+user="pi"
+led="5"
+
+gpio mode $led out
+gpio write $led 1
+
+mkdir /media/song_$1
+
+mount /dev/$1 /media/song_$1
+
+echo "mounted" >> /home/pi/truc.txt
+
+cp -n /media/song_$1/*.$extension $destination
+sudo chown -R $user $destination
+sync
+
+umount /media/song_$1
+rmdir /media/song_$1
+
+gpio write $led 0
+