Merge pull request #25 from dkramer95/volume

Add termux-volume

scripts/termux-volume

@@ -0,0 +1,30 @@
+#!/data/data/com.termux/files/usr/bin/bash
+set -e -u
+
+SCRIPTNAME=termux-volume
+show_usage () {
+    echo "Usage: $SCRIPTNAME stream volume"
+    echo "Change volume of audio stream"
+    echo "Valid audio streams are: alarm, music, notification, ring, system, call"
+    echo "Call w/o arguments to show information about each audio stream"
+    exit 0
+}
+
+ARGS=""
+
+# If we have arguments, we must have 2
+# Otherwise we will just return JSON info to user
+if [ $# -gt 0 ]; then
+    if [ $# -ne 2 ]; then
+        echo "Invalid argument count"
+        show_usage
+    fi
+
+    if ! [[ $2 =~ ^[0-9]+$ ]]; then
+        echo "ERROR: Volume must be a number"
+        show_usage
+    fi
+    ARGS="-a set-volume --es stream $1 --ei volume $2"
+fi
+
+/data/data/com.termux/files/usr/libexec/termux-api Volume $ARGS