am 76ddf411: Merge "Fix /proc/version parsing in Settings." (78f5c4d5) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/DeviceInfoSettings.java

+31 −30

Original line number	Diff line number	Diff line
		@@ -197,7 +197,7 @@ public class DeviceInfoSettings extends SettingsPreferenceFragment {
		* @return the first line, if any.
		* @throws IOException if the file couldn't be read
		*/
		private String readLine(String filename) throws IOException {
		private static String readLine(String filename) throws IOException {
		BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
		try {
		return reader.readLine();
		@@ -206,44 +206,45 @@ public class DeviceInfoSettings extends SettingsPreferenceFragment {
		}
		}

		private String getFormattedKernelVersion() {
		String procVersionStr;

		public static String getFormattedKernelVersion() {
		try {
		procVersionStr = readLine(FILENAME_PROC_VERSION);
		return formatKernelVersion(readLine(FILENAME_PROC_VERSION));

		final String PROC_VERSION_REGEX =
		"\\w+\\s+" + /* ignore: Linux */
		"\\w+\\s+" + /* ignore: version */
		"([^\\s]+)\\s+" + /* group 1: 2.6.22-omap1 */
		"\\(([^\\s@]+(?:@[^\\s.]+)?)[^)]\\)\\s+" + / group 2: (xxxxxx@xxxxx.constant) */
		"\\((?:[^(]\\([^)]\\))?[^)]\\)\\s+" + / ignore: (gcc ..) */
		"([^\\s]+)\\s+" + /* group 3: #26 */
		"(?:PREEMPT\\s+)?" + /* ignore: PREEMPT (optional) */
		"(.+)"; /* group 4: date */
		} catch (IOException e) {
		Log.e(LOG_TAG,
		"IO Exception when getting kernel version for Device Info screen",
		e);

		return "Unavailable";
		}
		}

		Pattern p = Pattern.compile(PROC_VERSION_REGEX);
		Matcher m = p.matcher(procVersionStr);
		public static String formatKernelVersion(String rawKernelVersion) {
		// Example (see tests for more):
		// Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
		// (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
		// Thu Jun 28 11:02:39 PDT 2012

		final String PROC_VERSION_REGEX =
		"Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
		"\\((\\S+?)\\) " + /* group 2: "x@y.com" (kernel builder) */
		"(?:\\(gcc.+? \\)) " + /* ignore: GCC version information */
		"(#\\d+) " + /* group 3: "#1" */
		"(?:.?)?" + / ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
		"((Sun\|Mon\|Tue\|Wed\|Thu\|Fri\|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */

		Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
		if (!m.matches()) {
		Log.e(LOG_TAG, "Regex did not match on /proc/version: " + procVersionStr);
		Log.e(LOG_TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
		return "Unavailable";
		} else if (m.groupCount() < 4) {
		Log.e(LOG_TAG, "Regex match on /proc/version only returned " + m.groupCount()
		+ " groups");
		return "Unavailable";
		} else {
		return (new StringBuilder(m.group(1)).append("\n").append(
		m.group(2)).append(" ").append(m.group(3)).append("\n")
		.append(m.group(4))).toString();
		}
		} catch (IOException e) {
		Log.e(LOG_TAG,
		"IO Exception when getting kernel version for Device Info screen",
		e);

		return "Unavailable";
		}
		return m.group(1) + "\n" + // 3.0.31-g6fb96c9
		m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
		m.group(4); // Thu Jun 28 11:02:39 PDT 2012
		}

		/**

tests/src/com/android/settings/DeviceInfoSettingsTest.java

0 → 100644

+54 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2012 The Android Open Source 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 com.android.settings;

		import android.test.AndroidTestCase;

		import com.android.settings.DeviceInfoSettings;

		public class DeviceInfoSettingsTest extends AndroidTestCase {

		public void testGetFormattedKernelVersion() throws Exception {
		if ("Unavailable".equals(DeviceInfoSettings.getFormattedKernelVersion())) {
		fail("formatKernelVersion can't cope with this device's /proc/version");
		}
		}

		public void testFormatKernelVersion() throws Exception {
		assertEquals("Unavailable", DeviceInfoSettings.formatKernelVersion(""));
		assertEquals("2.6.38.8-gg784\n" +
		"root@hpao4.eem.corp.google.com #2\n" +
		"Fri Feb 24 03:31:23 PST 2012",
		DeviceInfoSettings.formatKernelVersion("Linux version 2.6.38.8-gg784 " +
		"(root@hpao4.eem.corp.google.com) " +
		"(gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #2 SMP " +
		"Fri Feb 24 03:31:23 PST 2012"));
		assertEquals("3.0.31-g6fb96c9\n" +
		"android-build@vpbs1.mtv.corp.google.com #1\n" +
		"Thu Jun 28 11:02:39 PDT 2012",
		DeviceInfoSettings.formatKernelVersion("Linux version 3.0.31-g6fb96c9 " +
		"(android-build@vpbs1.mtv.corp.google.com) " +
		"(gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 " +
		"SMP PREEMPT Thu Jun 28 11:02:39 PDT 2012"));
		assertEquals("2.6.38.8-a-b-jellybean+\n" +
		"x@y #1\n" +
		"Tue Aug 28 22:10:46 CDT 2012",
		DeviceInfoSettings.formatKernelVersion("Linux version " +
		"2.6.38.8-a-b-jellybean+ (x@y) " +
		"(gcc version 4.4.3 (GCC) ) #1 PREEMPT Tue Aug 28 22:10:46 CDT 2012"));
		}
		}