angular-cn/tools/build/logging.js

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var kLogsArgument = /^--logs\s*=\s*(.+?)$/;
var kTrimLeft = /^\s+/;
var kTrimRight = /\s+$/;
var kCamelCase = /[-_\s]+(.)?/g;
var logs = findArgvLogs();
function findArgvLogs() {
for (var i = 0; i < process.argv.length; ++i) {
var match = process.argv[i].match(kLogsArgument);
if (match) {
return logsToObject(match[1]);
}
}
return null;
}
function logsToObject(logstr) {
return logstr.
split(',').
reduce(function(obj, key) {
key = camelize(key);
if (key.length > 0) obj[key] = true;
return obj;
}, Object.create(null));
return logs;
}
function camelize(str) {
return str.
replace(kTrimLeft, '').
replace(kTrimRight, '').
replace(kCamelCase, function(match, c) {
return c ? c.toUpperCase() : "";
});
}
function shouldLog(str) {
if (!logs || logs.quiet) return false;
if (logs.all) return true;
return !!logs[camelize(str)];
}
module.exports = shouldLog;