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Logger: Log all messages to a file

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For Bug reports we were calling 'adb logcat' and fetching the logs, but
the amount of logs we got was quite arbitrary, also this wasn't possible
in iOS.

With this approach, we don't get the lower level logs of Android/iOS or
from libgit2, but since we're slowly moving away from libgit2 anyway, it
will have to do.
This commit is contained in:
Vishesh Handa
2020-05-06 00:17:46 +02:00
parent 99a3d6214f
commit 63e7d0e927
1 changed files with 57 additions and 1 deletions
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58
lib/utils/logger.dart
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@ -1,32 +1,88 @@
import 'dart:convert';
import 'dart:io';
import 'package:fimber/fimber.dart';
import 'package:flutter/foundation.dart' as foundation;
import 'package:path_provider/path_provider.dart';
import 'package:path/path.dart' as p;
class Log {
static void init() {
static String logFolderPath;
static RandomAccessFile logFile;
static void init() async {
if (foundation.kDebugMode) {
Fimber.plantTree(DebugTree.elapsed(useColors: true));
} else {
Fimber.plantTree(DebugTree.elapsed(useColors: false));
}
var cacheDir = await getTemporaryDirectory();
logFolderPath = p.join(cacheDir.path, "logs");
try {
Directory(logFolderPath).createSync();
} catch (e) {
// Ignore if it already exists
}
setLogCapture(true);
}
static void v(String msg, {dynamic ex, StackTrace stacktrace}) {
Fimber.v(msg, ex: ex, stacktrace: stacktrace);
_write('v', msg, ex, stacktrace);
}
static void d(String msg, {dynamic ex, StackTrace stacktrace}) {
Fimber.d(msg, ex: ex, stacktrace: stacktrace);
_write('d', msg, ex, stacktrace);
}
static void i(String msg, {dynamic ex, StackTrace stacktrace}) {
Fimber.i(msg, ex: ex, stacktrace: stacktrace);
_write('i', msg, ex, stacktrace);
}
static void e(String msg, {dynamic ex, StackTrace stacktrace}) {
Fimber.e(msg, ex: ex, stacktrace: stacktrace);
_write('e', msg, ex, stacktrace);
}
static void w(String msg, {dynamic ex, StackTrace stacktrace}) {
Fimber.w(msg, ex: ex, stacktrace: stacktrace);
_write('w', msg, ex, stacktrace);
}
static void _write(
String level,
String msg,
dynamic ex,
StackTrace stackTrace,
) {
if (logFile == null) return;
var map = <String, dynamic>{
't': DateTime.now().millisecondsSinceEpoch,
'l': level,
'msg': msg.replaceAll('\n', ' '),
if (ex != null) 'ex': ex.toString().replaceAll('\n', ' '),
if (stackTrace != null)
'stack': stackTrace.toString().replaceAll('\n', ' '),
};
var str = json.encode(map);
logFile.writeStringSync(str + '\n');
}
static void setLogCapture(bool state) async {
if (state) {
var today = DateTime.now().toString().substring(0, 10);
var logFilePath = p.join(logFolderPath, '$today.jsonl');
logFile = await File(logFilePath).open(mode: FileMode.append);
print("Writing logs to file $logFilePath");
} else {
if (logFile != null) {
await logFile.close();
}
logFile = null;
}
}
}