javascript - Append to an existing text file using Photoshop Scripting ( .jsx ) - Stack Overflow

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I've been unable to find anything similar to my apparently niche case.

I have many .png files, all of which have a rectangular or square transparency on them. I have created a script which finds the bounds, and writes this info to a text file.

Currently the behaviour is that the script creates a single text file for each image, and writes the info I need to that file.

The code is currently as follows:

//Create logfile FOLDER on the desktop
var LogFolder = new Folder(Folder.desktop + "/LogFiles/");
if(!LogFolder.exists) LogFolder.create();

//NOTE TO SELF: Would be optimal if appended to single log file
//Create new LOGFILE in the folder using image name
var Loginfo = new File(Folder.desktop + "/LogFiles/" + activeDocument.name.replace(/\.[^\.]+$/, '') + ".txt");
Loginfo.open("w", "TEXT");

//Write the info to the file
Loginfo.write(activeDocument.name.replace(/\.[^\.]+$/, '') + ", " + selectionWidth + ", " + selectionHeight + ", " + selectionTopLeftXOffset + ", " + selectionTopLeftYOffset);

//Close the log
Loginfo.close();

.

I've started working at it, but have had no luck making it append to a single file:

//Create logfile FOLDER on the desktop
var LogFolder = new Folder(Folder.desktop + "/LogFiles/");
if(!LogFolder.exists) LogFolder.create();

//Append to LOGFILE
var Loginfo = new File(Folder.desktop + "/LogFiles/" + "coords.txt");
Loginfo.open("w", "TEXT");

//Write the info to the file
Loginfo.write(activeDocument.name.replace(/\.[^\.]+$/, '') + ", " + selectionWidth + ", " + selectionHeight + ", " + selectionTopLeftXOffset + ", " + selectionTopLeftYOffset + "\r");

//Close the log
Loginfo.close();

.

Appending to a single file would make the work that follows the creation of the file significantly easier. Any help would be greatly appreciated.

I've been unable to find anything similar to my apparently niche case.

I have many .png files, all of which have a rectangular or square transparency on them. I have created a script which finds the bounds, and writes this info to a text file.

Currently the behaviour is that the script creates a single text file for each image, and writes the info I need to that file.

The code is currently as follows:

//Create logfile FOLDER on the desktop
var LogFolder = new Folder(Folder.desktop + "/LogFiles/");
if(!LogFolder.exists) LogFolder.create();

//NOTE TO SELF: Would be optimal if appended to single log file
//Create new LOGFILE in the folder using image name
var Loginfo = new File(Folder.desktop + "/LogFiles/" + activeDocument.name.replace(/\.[^\.]+$/, '') + ".txt");
Loginfo.open("w", "TEXT");

//Write the info to the file
Loginfo.write(activeDocument.name.replace(/\.[^\.]+$/, '') + ", " + selectionWidth + ", " + selectionHeight + ", " + selectionTopLeftXOffset + ", " + selectionTopLeftYOffset);

//Close the log
Loginfo.close();

.

I've started working at it, but have had no luck making it append to a single file:

//Create logfile FOLDER on the desktop
var LogFolder = new Folder(Folder.desktop + "/LogFiles/");
if(!LogFolder.exists) LogFolder.create();

//Append to LOGFILE
var Loginfo = new File(Folder.desktop + "/LogFiles/" + "coords.txt");
Loginfo.open("w", "TEXT");

//Write the info to the file
Loginfo.write(activeDocument.name.replace(/\.[^\.]+$/, '') + ", " + selectionWidth + ", " + selectionHeight + ", " + selectionTopLeftXOffset + ", " + selectionTopLeftYOffset + "\r");

//Close the log
Loginfo.close();

.

Appending to a single file would make the work that follows the creation of the file significantly easier. Any help would be greatly appreciated.

• javascript
• photoshop
• jsx

Share Improve this question Follow asked Aug 14, 2013 at 19:41 DouglasDouglas 74533 gold badges1111 silver badges2626 bronze badges

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1 Answer 1

Sorted by: Reset to default 11

You're currently "writing" to the file, not "appending".

• // open() method
• fileExample.open("w"); // write
• fileExample.open("e"); // edit
• fileExample.open("a"); // append

You should be able to change

Loginfo.open("w", "TEXT");

to

Loginfo.open("a", "TEXT");

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