How to include .js file from enviroment variable

[Marvin01]

I try to switch from dev mode to live mode by changing a system enviroment variable with the root path of the scripts. Both for the extension jsx file and local PS scripts I use the...

#include (anotherJsFile.js);

syntax to include js files on the network, this works as expected.

But when I want to use a system enviroment variable to create the script path, and insert it into the include, it's undefined. I think the PS JS engine first executes the includes, before any variable is set.

So I don't see how I could load a script based on a path where any logic is requered first.

Any ideas how I can first build the path, and then include it?

[Marvin01]

What I had working was...

#include "/X/Tools/Photoshop/Remote Scripts/core.jsx"

What I was hoping for to work...

var toolsRoot = $.getenv("ToolsRoot");
var coreScript = toolsRoot + "Photoshop/Remote Scripts/core.jsx";

#include coreScript

It results in a failure at the include line, coreScript is undefined, but when I remove the include line, and place an alert to see the file path, it's correct. It just tries to run the include before any logic is done.

[jefbr]

Just a guess... Have you tried wrapping those lines in an if-statement so they are forced to be executed in order?

var stepOne, stepTwo = true;

if (stepOne) {
    var toolsRoot = $.getenv("ToolsRoot");
    if (stepTwo) {
        var coreScript = toolsRoot + "Photoshop/Remote Scripts/core.jsx";
        #include coreScript
    };
};

Alternatively, try adding a delay by using this in between the steps:

var timeInMilliSeconds = 100;


var toolsRoot = $.getenv("ToolsRoot");
$.sleep(timeInMilliSeconds);
var coreScript = toolsRoot + "Photoshop/Remote Scripts/core.jsx";
$.sleep(timeInMilliSeconds);
#include coreScript

They might not be pretty or good practise, but worth a shot. 🙂

[Marvin01]

Thanks for your suggestions! Inside a function didn't work, I didn't try the delay yet, but I don't think that will work. I did figure out an alternative.. Leaving the jsx file empty, and from the CEP panel use...

csInterface.evalScript("#include " + coreScript);

 It works, except that I know need to know how to get an enviroment variable from CEP js, $.getenv() doesn't work inside the CEP js file. process.env.NAME also is not working, process is undifined.. I'm not using NodeJs in my CEP panel. I'm sure there is a syntax to get an enviroment variable from CEP, but I have no idea...

[jefbr]

I played around with it but couldn't find anything either.

Can you use a global for the environment variable?

Or (dirty) ... use prototyping to add it to $ and hope it piggybacks.

$.prototype.aNameYouChoose = theThingYouNeed;

Let us know if you find anything, I'll be watching. 🙂 Best of luck!

[Lumigraphics]

Write your values to a temp file and read from that. I'm not sure if CEP can access Photoshop prefs, if so you can store persistent values in those as well.

[Marvin01 · Accepted solution]

I managed to get both scenario's working...

1) If you want a script being included from within a jsx file that is dependend on any logic for path generation, you can use this methode instead of the "# include" methode...

var rootPath= $.getenv("rootPath");
var scriptPath = rootPath + "Photoshop/script.jsx";

$.evalFile(File(scriptPath));

This seems to work identical to the "# include" methode, except it isn't executed bofore any logic is executed.

2) If you want a logic dependent jsx file path included in your jsx hostscript for your CEP extension. In my case I wasn't able to read the enviroment variable from within CEP's js, I used this methode...

var csInterface = new CSInterface();
csInterface.evalScript("$.getenv('rootPath')", function (result){
    var rootPath = result;
    var scriptPath = rootPath + "Photoshop/script.jsx";
    csInterface.evalScript("#include '" + scriptPath + "'");
}