Dynamically change log level

2026-04-01 14:46:31 +02:00 · 2023-12-16 21:53:51 +01:00
parent 7e0cb664b6
commit 7b42fb1ea6
7 changed files with 52 additions and 41 deletions
--- a/app/src/main/java/eu/faircode/email/FairEmailLoggingProvider.java
+++ b/app/src/main/java/eu/faircode/email/FairEmailLoggingProvider.java
@@ -0,0 +1,110 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail 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.
+
+    FairEmail 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 FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2023 by Marcel Bokhorst (M66B)
+*/
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import androidx.preference.PreferenceManager;
+
+import org.tinylog.Level;
+import org.tinylog.core.TinylogLoggingProvider;
+import org.tinylog.format.MessageFormatter;
+import org.tinylog.provider.ProviderRegistry;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.Comparator;
+
+// https://tinylog.org/v2/configuration/
+// https://github.com/tinylog-org/tinylog-android-example/blob/v2/app/src/main/resources/tinylog.properties
+
+public class FairEmailLoggingProvider extends TinylogLoggingProvider {
+    private Level activeLevel = Level.WARN;
+
+    public void setLevel(Level level) {
+        activeLevel = level;
+    }
+
+    @Override
+    public boolean isEnabled(int depth, String tag, Level level) {
+        return (activeLevel.ordinal() <= level.ordinal() &&
+                super.isEnabled(depth + 1, tag, level));
+    }
+
+    @Override
+    public void log(int depth, String tag, Level level, Throwable exception, MessageFormatter formatter, Object obj, Object... arguments) {
+        if (activeLevel.ordinal() <= level.ordinal())
+            super.log(depth, tag, level, exception, formatter, obj, arguments);
+    }
+
+    @Override
+    public void log(String loggerClassName, String tag, Level level, Throwable exception, MessageFormatter formatter, Object obj, Object... arguments) {
+        if (activeLevel.ordinal() <= level.ordinal())
+            super.log(loggerClassName, tag, level, exception, formatter, obj, arguments);
+    }
+
+    static void setup(Context context) {
+        System.setProperty("tinylog.directory",
+                new File(context.getFilesDir(), "logs").getAbsolutePath());
+
+        setLevel(context);
+    }
+
+    static void setLevel(Context context) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        boolean debug = prefs.getBoolean("debug", false);
+
+        FairEmailLoggingProvider provider = (FairEmailLoggingProvider) ProviderRegistry.getLoggingProvider();
+
+        if (debug)
+            provider.activeLevel = Level.DEBUG;
+        else {
+            int def = (BuildConfig.DEBUG || BuildConfig.TEST_RELEASE ? android.util.Log.INFO : android.util.Log.WARN);
+            int _level = prefs.getInt("log_level", def);
+            if (_level == android.util.Log.VERBOSE)
+                provider.activeLevel = Level.TRACE;
+            else if (_level == android.util.Log.DEBUG)
+                provider.activeLevel = Level.DEBUG;
+            else if (_level == android.util.Log.INFO)
+                provider.activeLevel = Level.INFO;
+            else if (_level == android.util.Log.WARN)
+                provider.activeLevel = Level.WARN;
+            else if (_level == android.util.Log.ERROR)
+                provider.activeLevel = Level.ERROR;
+        }
+    }
+
+    static File[] getLogFiles(Context context) {
+        File[] files = new File(context.getFilesDir(), "logs").listFiles();
+
+        if (files == null)
+            return new File[0];
+
+        Arrays.sort(files, new Comparator<File>() {
+            @Override
+            public int compare(File f1, File f2) {
+                return f1.getName().compareTo(f2.getName());
+            }
+        });
+
+        return files;
+    }
+}