Function saveDraft

src/main/electron.js:3079–3117

(fileObject, data)

};

async function saveDraft(fileObject, data)
{
	var draftFileName = fileObject.draftFileName || getDraftFileName(fileObject);

	if (!checkFileContent(data))
	{
		throw new Error('Invalid file data');
	}

	await assertWritablePath(draftFileName);

	let draftFh;

	try
	{
		draftFh = await fsProm.open(draftFileName, O_SYNC | O_CREAT | O_WRONLY | O_TRUNC);
		await fsProm.writeFile(draftFh, data, 'utf8');
		await draftFh.sync(); // Flush to disk
	}
	finally
	{
		await draftFh?.close();
	}

	if (isWin)
	{
		try
		{
			// Add Hidden attribute:
			var child = spawn('attrib', ['+h', draftFileName]);
			child.on('error', function(err)
			{
				console.log('hiding draft file error: ' + err);
			});
		} catch(e) {}
	}

	return draftFileName;
}

// Reads the .bkp backup written before the last overwrite (see saveFile),
// used for best-effort recovery when the main file fails to load. Returns