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Simplify repo update logic

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This commit is contained in:
topjohnwu 2018-08-02 01:52:03 +08:00
parent 27e0d1641a
commit 6acb950990
2 changed files with 20 additions and 49 deletions
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2
app/src/full/java/com/topjohnwu/magisk/Const.java
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@ -77,7 +77,7 @@ public class Const {
public static final String STABLE_URL = "https://raw.githubusercontent.com/topjohnwu/magisk_files/master/stable.json";
public static final String BETA_URL = "https://raw.githubusercontent.com/topjohnwu/magisk_files/master/beta.json";
public static final String SNET_URL = "https://github.com/topjohnwu/magisk_files/raw/a300521162587da23e45010797bfd8c9a03594f6/snet.apk";
public static final String REPO_URL = "https://api.github.com/users/Magisk-Modules-Repo/repos?per_page=100&page=%d";
public static final String REPO_URL = "https://api.github.com/users/Magisk-Modules-Repo/repos?per_page=100&sort=pushed&page=%d";
public static final String FILE_URL = "https://raw.githubusercontent.com/Magisk-Modules-Repo/%s/master/%s";
public static final String ZIP_URL = "https://github.com/Magisk-Modules-Repo/%s/archive/master.zip";
public static final String DONATION_URL = "https://www.paypal.me/topjohnwu";

67
app/src/full/java/com/topjohnwu/magisk/asyncs/UpdateRepos.java
View File

@ -2,7 +2,6 @@ package com.topjohnwu.magisk.asyncs;
import android.database.Cursor;
import android.os.AsyncTask;
import android.text.TextUtils;
import com.topjohnwu.magisk.Const;
import com.topjohnwu.magisk.Data;
@ -22,12 +21,9 @@ import java.net.HttpURLConnection;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
@ -38,10 +34,6 @@ import java.util.concurrent.TimeUnit;
public class UpdateRepos {
private static final int CHECK_ETAG = 0;
private static final int LOAD_NEXT = 1;
private static final int LOAD_PREV = 2;
private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
private static final int CORE_POOL_SIZE = Math.max(2, CPU_COUNT - 1);
private static final DateFormat dateFormat;
@ -52,14 +44,11 @@ public class UpdateRepos {
}
private MagiskManager mm;
private List<String> etags, newEtags;
private Set<String> cached;
private ExecutorService threadPool;
public UpdateRepos() {
mm = Data.MM();
threadPool = Executors.newFixedThreadPool(CORE_POOL_SIZE);
newEtags = new LinkedList<>();
}
private void waitTasks() {
@ -104,51 +93,37 @@ public class UpdateRepos {
return true;
}
private boolean loadPage(int page, int mode) {
/* We sort repos by last push, which means that we only need to check whether the
* first page is updated to determine whether the online repo database is changed
*/
private boolean loadPage(int page) {
Map<String, String> header = new HashMap<>();
if (mode == CHECK_ETAG && page < etags.size())
header.put(Const.Key.IF_NONE_MATCH, etags.get(page));
if (page == 0)
header.put(Const.Key.IF_NONE_MATCH, mm.prefs.getString(Const.Key.ETAG_KEY, ""));
String url = Utils.fmt(Const.Url.REPO_URL, page + 1);
try {
HttpURLConnection conn = WebService.request(url, header);
if (conn.getResponseCode() == HttpURLConnection.HTTP_NOT_MODIFIED) {
// Current page is not updated, check the next page
return loadPage(page + 1, CHECK_ETAG);
}
// No updates
if (conn.getResponseCode() == HttpURLConnection.HTTP_NOT_MODIFIED)
return false;
// Current page is the last page
if (!loadJSON(WebService.getString(conn)))
return mode != CHECK_ETAG;
return true;
} catch (Exception e) {
e.printStackTrace();
// Should not happen, but if exception occurs, page load fails
return false;
}
/* If one page is updated, we force update all pages */
// Update ETAG
String etag = header.get(Const.Key.ETAG_KEY);
etag = etag.substring(etag.indexOf('\"'), etag.lastIndexOf('\"') + 1);
if (mode == LOAD_PREV) {
// We are loading a previous page, push the new tag to the front
newEtags.add(0, etag);
} else {
newEtags.add(etag);
if (page == 0) {
String etag = header.get(Const.Key.ETAG_KEY);
etag = etag.substring(etag.indexOf('\"'), etag.lastIndexOf('\"') + 1);
mm.prefs.edit().putString(Const.Key.ETAG_KEY, etag).apply();
}
String links = header.get(Const.Key.LINK_KEY);
if (links != null) {
for (String s : links.split(", ")) {
if (mode != LOAD_PREV && s.contains("next")) {
// Force load all next pages
loadPage(page + 1, LOAD_NEXT);
}
if (mode != LOAD_NEXT && s.contains("prev")) {
// Back propagation
loadPage(page - 1, LOAD_PREV);
}
}
}
return true;
return links == null || !links.contains("next") || loadPage(page + 1);
}
private void fullReload() {
@ -171,17 +146,13 @@ public class UpdateRepos {
public void exec(boolean force) {
Topic.reset(Topic.REPO_LOAD_DONE);
AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
etags = Arrays.asList(mm.prefs.getString(Const.Key.ETAG_KEY, "").split(","));
cached = mm.repoDB.getRepoIDSet();
threadPool = Executors.newFixedThreadPool(CORE_POOL_SIZE);
if (loadPage(0, CHECK_ETAG)) {
if (loadPage(0)) {
waitTasks();
// The leftover cached means they are removed from online repo
mm.repoDB.removeRepo(cached);
// Update ETag
mm.prefs.edit().putString(Const.Key.ETAG_KEY, TextUtils.join(",", newEtags)).apply();
} else if (force) {
fullReload();
}