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blueslip: Record calls to log, info, warn, and error methods in an in-memory log

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(imported from commit 556a92725c492de558269c0760a96783e2a3fc18)
This commit is contained in:
Zev Benjamin
2013-10-22 15:11:13 -04:00
parent 1c841e4454
commit 3276f8a4d0
1 changed files with 57 additions and 4 deletions
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61
static/js/blueslip.js
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@@ -24,6 +24,59 @@ var console = (function () {
return proxy;
}());
function Logger() {
this._memory_log = [];
}
Logger.prototype = (function () {
function make_logger_func(name) {
return function Logger_func() {
var now = new Date();
var date_str =
now.getUTCFullYear() + '-' +
(now.getUTCMonth() + 1) + '-' +
now.getUTCDate() + ' ' +
now.getUTCHours() + ':' +
now.getUTCMinutes() + ':' +
now.getUTCSeconds() + '.' +
now.getUTCMilliseconds() + ' UTC';
var str_args = _.map(arguments, function (x) {
if (typeof(x) === 'object') {
return JSON.stringify(x);
} else {
return x;
}
});
var log_entry = date_str + " " + name.toUpperCase() +
': ' + str_args.join("");
this._memory_log.push(log_entry);
return console[name].apply(console, arguments);
};
}
var proto = {
get_log: function Logger_get_log() {
return this._memory_log;
}
};
var methods = ['log', 'info', 'warn', 'error'];
var i;
for (i = 0; i < methods.length; i++) {
proto[methods[i]] = make_logger_func(methods[i]);
}
return proto;
}());
var logger = new Logger();
exports.get_log = function blueslip_get_log() {
return logger.get_log();
};
var reported_errors = {};
var last_report_attempt = {};
function report_error(msg, stack, opts) {
@@ -283,17 +336,17 @@ function build_arg_list(msg, more_info) {
exports.log = function blueslip_log (msg, more_info) {
var args = build_arg_list(msg, more_info);
console.log.apply(console, args);
logger.log.apply(logger, args);
};
exports.info = function blueslip_info (msg, more_info) {
var args = build_arg_list(msg, more_info);
console.info.apply(console, args);
logger.info.apply(logger, args);
};
exports.warn = function blueslip_warn (msg, more_info) {
var args = build_arg_list(msg, more_info);
console.warn.apply(console, args);
logger.warn.apply(logger, args);
if (page_params.debug_mode) {
console.trace();
}
@@ -304,7 +357,7 @@ exports.error = function blueslip_error (msg, more_info) {
throw new BlueslipError(msg, more_info);
} else {
var args = build_arg_list(msg, more_info);
console.error.apply(console, args);
logger.error.apply(logger, args);
report_error(msg, Error().stack, {more_info: more_info});
}
};