Log
Error log function
function ErrorLog(text) { var file = new File("~/Desktop/" + scriptName + " - error log.txt"); file.encoding = "UTF-8"; if (file.exists) { file.open("e"); file.seek(0, 2); } else { file.open("w"); if (errorsArr.length == 0) file.write("=========================================================\rDate & time: " + GetDate() + "\r=========================================================\r"); } file.write(text + "\r"); file.close(); errorsArr.push(text); }
Log message function
function LogMessage(msg) { if (log) { var file = new File("~/Desktop/" + scriptName + " log.txt"); file.encoding = "UTF-8"; if (file.exists) { file.open("e"); file.seek(0, 2); } else { file.open("w"); } file.write(msg + "\r"); file.close(); } }
This function allows logging errors into another file and overwriting the file if it already exists
var scriptName = "Add Alt-Text", logCount, log = true, logOverwrite = true, debug = true; Log("Applied Alt-Text: " + thumbnail.name + " | " + altText, false); try { // something goes wrong here } catch(err) { Log(err.message + ", line: " + err.line + " in ApplyMetadata", true); } function Log(text, err) { if (log) { if (typeof err == "undefined") err = false; if (typeof logOverwrite == "undefined") logOverwrite = false; var file = new File("~/Desktop/" + scriptName + " - " + ((err) ? "Error " : "") + "Log.txt"); if (logOverwrite && logCount == 0) { if (file.exists) file.remove(); } if (logCount == 0) { // add header before the first error during a session text = ((file.exists) ? "\r" : "") + "========== " + new Date().toLocaleString() + " ==========\r" + text; } file.encoding = "UTF-8"; if (file.exists) { file.open("e"); file.seek(0, 2); } else { file.open("w"); } file.write(text + "\r"); file.close(); logCount++; } }
See also Logging with a smile
extendscript-logger by theasci
extendscript-logger by npm