ability to use adtadir environment variable to set data directory

scripts/gajim-remote.in

@@ -24,7 +24,7 @@ if test $(id -u) -eq 0; then
 	exit 1
 fi
 
-datadir=@DATADIR@
+export datadir=@DATADIR@
 PYTHON_EXEC=@PYTHON@
 
 cd ${datadir}/gajim/src

scripts/gajim.in

@@ -26,7 +26,7 @@ if test $(id -u) -eq 0; then
 	exit 1
 fi
 
-datadir=@DATADIR@
+export datadir=@DATADIR@
 PYTHON_EXEC=@PYTHON@
 
 cd ${datadir}/gajim/src

src/common/configpaths.py

@@ -114,7 +114,12 @@ class ConfigPaths:
 		for n, p in zip(k, v):
 			self.add_from_root(n, p)
 
-		self.add('DATA', os.path.join(u'..', windowsify(u'data')))
+		datadir = ''
+		if u'datadir' in os.environ:
+			datadir = fse(os.environ[u'datadir'])
+		if not datadir:
+			datadir = u'..'
+		self.add('DATA', os.path.join(datadir, windowsify(u'data')))
 		self.add('HOME', fse(os.path.expanduser('~')))
 		self.add('TMP', fse(tempfile.gettempdir()))
 

src/roster_window.py

@@ -999,9 +999,9 @@ class RosterWindow:
 		if gajim.config.get('show_tunes_in_roster') \
 		and ('artist' in gajim.connections[account].tune \
 		or 'title' in gajim.connections[account].tune):
+			path = os.path.join(gajim.DATA_DIR, 'emoticons', 'static', 'music.png')
 			self.model[child_iter][C_TUNE_PIXBUF] = \
-				gtk.gdk.pixbuf_new_from_file(
-				'../data/emoticons/static/music.png')
+				gtk.gdk.pixbuf_new_from_file(path)
 		else:
 			self.model[child_iter][C_TUNE_PIXBUF] = None
 
@@ -1262,8 +1262,8 @@ class RosterWindow:
 		jid = jid.decode('utf-8')
 		contact = gajim.contacts.get_contact(account, jid)
 		if 'artist' in contact.tune or 'title' in contact.tune:
-			pixbuf = gtk.gdk.pixbuf_new_from_file(
-				'../data/emoticons/static/music.png')
+			path = os.path.join(gajim.DATA_DIR, 'emoticons', 'static', 'music.png')
+			pixbuf = gtk.gdk.pixbuf_new_from_file(path)
 		else:
 			pixbuf = None
 		for child_iter in iters: