CMSDK: Create versioning for platform SDK.

Introduce Apricot, the first version for the
  platform sdk.

Change-Id: I4963650cb861725508aa71276977ac6157f248fc

src/java/cyanogenmod/os/Build.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2015 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cyanogenmod.os;
+
+import android.os.SystemProperties;
+
+import java.util.HashMap;
+
+/**
+ * Information about the current CyanogenMod build, extracted from system properties.
+ */
+public class Build {
+    /** Value used for when a build property is unknown. */
+    public static final String UNKNOWN = "unknown";
+
+    private static final HashMap<Integer, String> sdkMap;
+    static
+    {
+        sdkMap = new HashMap<Integer, String>();
+        sdkMap.put(CM_VERSION_CODES.APRICOT, "Apricot");
+    }
+
+    /** Various version strings. */
+    public static class CM_VERSION {
+        /**
+         * The user-visible SDK version of the framework; its possible
+         * values are defined in {@link Build.CM_VERSION_CODES}.
+         */
+        public static final int SDK_INT = SystemProperties.getInt(
+                "ro.cm.build.version.plat.sdk", 0);
+    }
+
+    /**
+     * Enumeration of the currently known SDK version codes.  These are the
+     * values that can be found in {@link CM_VERSION#SDK_INT}.  Version numbers
+     * increment monotonically with each official platform release.
+     */
+    public static class CM_VERSION_CODES {
+        /**
+         * June 2015: The first version of the platform sdk for CyanogenMod
+         */
+        public static final int APRICOT = 1;
+    }
+
+    /**
+     * Retrieve the name for the SDK int
+     * @param sdkInt
+     * @return name of the SDK int
+     */
+    public static String getNameForSDKInt(int sdkInt) {
+        return sdkMap.get(sdkInt);
+    }
+}