Is it possible to execute JavaScript code (using Node.js) through AppleScript on MAC OS?

After downloading Node.js for MAC OS from this link: http://nodejs.org/download/ (http://nodejs.org/dist/v0.10.29/node-v0.10.29.pkg), I needed to execute a JavaScript on Google Chrome. To do this, I utilized the following AppleScript code:

do shell script "supervisor \"/Applications/xyz.js\""

However, executing the above code resulted in the error message:

error "sh: supervisor: command not found" number 127

Surprisingly, running the same syntax through Terminal worked perfectly fine:

supervisor /Applications/xyz.js

javascriptnode.jsmacosgoogle-chromeapplescript

Answer №1

Seems like the configuration of your path environment variable is causing issues with locating the application within Applescript.

For instance, in an Applescript...

do shell script "echo $PATH"

will show

"/usr/bin:/bin:/usr/sbin:/sbin"

However, in Terminal...

$ echo $PATH
/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin

In order to resolve this issue, simply include the full path of the executable in your Applescript like so...

do shell script "/path/to/app/supervisor ...."

Here is an official explanation...

The problem lies in which application you specify, as it defines the environment for the shell script— including the working directory and environment variables. Most applications share the same environment, but relying on this can pose maintenance risks. When your AppleScript runs in osascript, its working environment originates from the shell osascript was initiated from, which is entirely separate from any other application.

You can find more information about this here.

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