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telegram_backup
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Added version checking code. Complete with unit tests. Oh yeah. :D

This commit is contained in:
Fabian Schlenz 2016-08-29 07:01:32 +02:00
parent 3e64b336a8
commit 5291b35f63
5 changed files with 148 additions and 0 deletions
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3
build.gradle
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@ -21,6 +21,9 @@ dependencies {
compile 'com.github.spullara.mustache.java:compiler:0.8.18'
compile 'org.slf4j:slf4j-api:1.7.21'
compile 'ch.qos.logback:logback-classic:1.1.7'
compile 'com.google.code.gson:gson:2.5'
testCompile 'junit:junit:4.12'
}
run {

10
src/main/java/de/fabianonline/telegram_backup/CommandLineRunner.java
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@ -17,6 +17,8 @@
package de.fabianonline.telegram_backup;
import de.fabianonline.telegram_backup.CommandLineController;
import de.fabianonline.telegram_backup.Utils;
import de.fabianonline.telegram_backup.Version;
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
@ -55,6 +57,14 @@ public class CommandLineRunner {
((Logger)LoggerFactory.getLogger("com.github.badoualy")).setLevel(Level.TRACE);
}
Version v = Utils.getNewestVersion();
if (v!=null && v.isNewer) {
System.out.println("A newer version is vailable!");
System.out.println("You are using: " + Config.APP_APPVER);
System.out.println("Available: " + v.version);
System.out.println("Get it here: " + v.url);
System.out.println();
}
if (true || CommandLineOptions.cmd_console) {
// Always use the console for now.

91
src/main/java/de/fabianonline/telegram_backup/Utils.java
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@ -19,8 +19,20 @@ import com.github.badoualy.telegram.tl.exception.RpcErrorException;
import java.io.File;
import java.util.List;
import java.util.Vector;
import com.google.gson.*;
import java.net.URL;
import org.apache.commons.io.IOUtils;
import de.fabianonline.telegram_backup.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Utils {
public static final int VERSIONS_EQUAL = 0;
public static final int VERSION_1_NEWER = 1;
public static final int VERSION_2_NEWER = 2;
private static final Logger logger = (Logger)LoggerFactory.getLogger(Utils.class);
static Vector<String> getAccounts() {
Vector<String> accounts = new Vector<String>();
File folder = new File(Config.FILE_BASE);
@ -53,4 +65,83 @@ public class Utils {
try { Thread.sleep(wait * 60 * 1000); } catch(InterruptedException e2) {}
System.out.println("");
}
static Version getNewestVersion() {
try {
String data_url = "https://api.github.com/repos/fabianonline/telegram_backup/releases";
logger.debug("Requesting current release info from {}", data_url);
String json = IOUtils.toString(new URL(data_url));
JsonParser parser = new JsonParser();
JsonElement root_elm = parser.parse(json);
if (root_elm.isJsonArray()) {
JsonArray root = root_elm.getAsJsonArray();
JsonObject newest_version = null;
for (JsonElement e : root) if (e.isJsonObject()) {
JsonObject version = e.getAsJsonObject();
if (version.getAsJsonPrimitive("prerelease").getAsBoolean() == false) {
newest_version = version;
break;
}
}
if (newest_version == null) return null;
String new_v = newest_version.getAsJsonPrimitive("tag_name").getAsString();
logger.debug("Found current release version {}", new_v);
String cur_v = Config.APP_APPVER;
int result = compareVersions(cur_v, new_v);
return new Version(new_v, newest_version.getAsJsonPrimitive("html_url").getAsString(), result == VERSION_2_NEWER);
}
return null;
} catch(Exception e) {
return null;
}
}
public static int compareVersions(String v1, String v2) {
logger.debug("Comparing versions {} and {}.", v1, v2);
if (v1.equals(v2)) return VERSIONS_EQUAL;
String[] v1_p = v1.split("-");
String[] v2_p = v2.split("-");
logger.trace("Parts to compare without suffixes: {} and {}.", v1_p[0], v2_p[0]);
String[] v1_p2 = v1_p[0].split("\\.");
String[] v2_p2 = v2_p[0].split("\\.");
logger.trace("Length of the parts without suffixes: {} and {}.", v1_p2.length, v2_p2.length);
int i;
for (i=0; i<v1_p2.length && i<v2_p2.length; i++) {
int i_1 = Integer.parseInt(v1_p2[i]);
int i_2 = Integer.parseInt(v2_p2[i]);
logger.trace("Comparing parts: {} and {}.", i_1, i_2);
if (i_1 > i_2) {
logger.debug("v1 is newer");
return VERSION_1_NEWER;
} else if (i_2 > i_1) {
logger.debug("v2 is newer");
return VERSION_2_NEWER;
}
}
logger.trace("At least one of the versions has run out of parts.");
if (v1_p2.length > v2_p2.length) {
logger.debug("v1 is longer, so it is newer");
return VERSION_1_NEWER;
} else if (v2_p2.length > v1_p2.length) {
logger.debug("v2 is longer, so it is newer");
return VERSION_2_NEWER;
}
if (v1_p.length>1 && v2_p.length==1) {
logger.debug("v1 has a suffix, v2 not - so v2 is newer.");
return VERSION_2_NEWER;
} else if (v1_p.length==1 && v2_p.length>1) {
logger.debug("v1 has no suffix, but v2 has - so v1 is newer.");
return VERSION_1_NEWER;
}
logger.debug("We couldn't find a real difference, so we're assuming the versions are equal-ish.");
return VERSIONS_EQUAL;
}
}

29
src/main/java/de/fabianonline/telegram_backup/Version.java Normal file
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@ -0,0 +1,29 @@
/* Telegram_Backup
* Copyright (C) 2016 Fabian Schlenz
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
package de.fabianonline.telegram_backup;
public class Version {
public final String version;
public final String url;
public final boolean isNewer;
public Version(String v, String u, boolean n) {
this.version = v;
this.url = u;
this.isNewer = n;
}
}

15
src/test/java/de/fabianonline/telegram_backup/utils/CompareVersionsTest.java Normal file
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@ -0,0 +1,15 @@
import static org.junit.Assert.*;
import org.junit.Test;
import de.fabianonline.telegram_backup.Utils;
public class CompareVersionsTest {
@Test
public void tests() {
assertEquals(Utils.compareVersions("1.0.3", "1.0.4"), Utils.VERSION_2_NEWER);
assertEquals(Utils.compareVersions("1.0.4", "1.0.3"), Utils.VERSION_1_NEWER);
assertEquals(Utils.compareVersions("1.0.4", "1.0.4.1"), Utils.VERSION_2_NEWER);
assertEquals(Utils.compareVersions("1.0.4", "1.0.4-pre.1"), Utils.VERSION_1_NEWER);
assertEquals(Utils.compareVersions("1.0.4", "1.0.4"), Utils.VERSIONS_EQUAL);
assertEquals(Utils.compareVersions("1.0.4-pre.2", "1.0.4-pre.1"), Utils.VERSIONS_EQUAL);
}
}