Sergey Grebnov created CB-7060:
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Summary: WP8. Fix large project build performance issue
Key: CB-7060
URL: https://issues.apache.org/jira/browse/CB-7060
Project: Apache Cordova
Issue Type: Bug
Components: WP8
Reporter: Sergey Grebnov
Assignee: Sergey Grebnov
When a Windows Phone project with many resources is built in VS with Cordova,
the project takes much longer to build than a project for Win 8 or Android. We
have identified the function that is causing the issue; it is the
exec_verbose(command) function in
<project-folder>\bld\Debug\platforms\wp8\cordova\lib\build.js .
// executes a commmand in the shell
function exec_verbose(command) {
//Log("Command: " + command);
var oShell=wscript_shell.Exec(command);
while (oShell.Status == 0) {
//Wait a little bit so we're not super looping
WScript.sleep(100);
//Print any stdout output from the script
if (!oShell.StdOut.AtEndOfStream) {
var line = oShell.StdOut.ReadLine();
Log(line);
}
}
The WScript.sleep() call gets executed every time through the loop, and when
building a Windows Phone 8 project, every single resource that is added gets
its own line in the log. Thus a project with thousands of resources sleeps
thousands of times. This function is identical in the Win8 build.js file, but
the resources aren’t added in the same way as they are for Windows Phone
projects. The Android build.js does something entirely different.
We have identified a couple potential fixes:
•Change the if statement to a while loop
•Leave the if statement but change the ReadLine() call to a ReadAll() call
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