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Fix console log not starting near the end of a file

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This commit is contained in:
Ryan Huffman 2016-02-09 14:46:27 -08:00
parent 16cf86ba6b
commit 9e9c124d0b
1 changed files with 20 additions and 8 deletions
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28
server-console/src/log.js
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@ -1,6 +1,7 @@
var remote = require('electron').remote;
var os = require('os');
var Tail = require('always-tail');
const remote = require('electron').remote;
const os = require('os');
const fs = require('fs');
const Tail = require('always-tail');
function cleanPath(path) {
if (os.type() == "Windows_NT") {
@ -27,7 +28,7 @@ function difference(a, b) {
}
for (k of b) {
if (a.indexOf(k) == -1) {
// In a, but not in b
// In b, but not in a
add.push(k);
}
}
@ -65,14 +66,25 @@ ready = function() {
diff.subtract.forEach(function(removedLogFilePath) {
watchList[removedLogFilePath].unwatch();
delete watchList[removedLogFilePath];
console.log("Unwatching", removedLogFilePath);
});
diff.add.forEach(function(addedLogFilePath) {
const START_AT_X_BYTES_FROM_END = 0;
var cleanFilePath = cleanPath(addedLogFilePath);
var logTail = new Tail(cleanFilePath, '\n', { start: 0, interval: 500 });
// For larger files we won't want to start tailing from the beginning of the file,
// so start `START_AT_X_BYTES_FROM_END` bytes from the end of the file.
var start = 0;
try {
var fileInfo = fs.statSync(cleanFilePath);
start = Math.max(0, fileInfo.size - START_AT_X_BYTES_FROM_END);
} catch (e) {
console.error("ERROR READING FILE INFO", e);
}
var logTail = new Tail(cleanFilePath, '\n', { start: start, interval: 500 });
logTail.on('line', function(msg) {
appendLogMessage(0, msg, stream);
appendLogMessage(msg, stream);
});
logTail.on('error', function(error) {
@ -140,7 +152,7 @@ ready = function() {
}
}
$('ul.tabs li').click(function(){
$('ul.tabs li').click(function() {
setCurrentTab($(this).attr('data-tab'));
});
@ -153,7 +165,7 @@ ready = function() {
return !filter || message.toLowerCase().indexOf(filter) >= 0;
}
function appendLogMessage(pid, msg, name) {
function appendLogMessage(msg, name) {
var id = name == "ds" ? "domain-server" : "assignment-client";
var $pidLog = $('#' + id);