I saw this post on Mastodon, and it got me thinking.
Are there any other hardcoded folder names in macOS? Where would I even start looking?
Well, based on what I know, every program on macOS is a directory that ends with .app, which means all I have to do is to find Finder’s location.
That should be pretty easy!
antranigv@zvartnots:~ $ cd /System/ antranigv@zvartnots:/System $ find . -type d -name Finder.app 2>/dev/null ./Library/CoreServices/Finder.app ./Volumes/Data/System/Library/CoreServices/Finder.app
Well, that was easy to find! Don’t worry, /System/Library is the same as /System/Volumes/Data/System/Library, Apple has a weird way of doing mount points, and I’m not here to judge. Well, at least not today!
Next I have to dig into Finder.app’s content, let’s see what we have.
antranigv@zvartnots:/System $ cd Library/CoreServices/Finder.app/ antranigv@zvartnots:/System/Library/CoreServices/Finder.app $ find . -type f -name 'Developer*'
Weird. Nothing at all?
I wonder what type of files we have here? I already know that I wanna see all the file types except Mach-O.
$ find . -type f -print0 | xargs -0 -I% -L 1 file -b "%" | sort -u | grep -v 'Mach-O' ASCII text, with no line terminators Apple binary property list IFF data, AIFF audio Mac OS X Code Directory version 20100 - 203 bytes Mac OS X Code Directory version 20100 - 213 bytes Mac OS X Code Directory version 20100 - 215 bytes Mac OS X Code Directory version 20100 - 217 bytes Mac OS X Code Requirement Set - 76 bytes Mac OS X Code Requirement Set - 84 bytes Mac OS X Code Requirement Set - 88 bytes Mac OS X bill of materials (BOM) file Mac OS X icon, 114423 bytes, "ic13" type Mac OS X icon, 1162872 bytes, "ic12" type Mac OS X icon, 23712 bytes, "ic13" type Mac OS X icon, 30805 bytes, "ic13" type Mac OS X icon, 37834 bytes, "ic13" type Mac OS X icon, 72729 bytes, "ic13" type Mac OS X icon, 76602 bytes, "ic13" type XML 1.0 document text, ASCII text XML 1.0 document text, Unicode text, UTF-8 text data
Okay! we’re getting somewhere!
According to Magic file directory on FreeBSD, the filename is usually .icns
I think the rest will be easy, let’s try this again!
$ find /System/Library -type f -name 'Developer*.icns' 2>/dev/null /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/DeveloperFolderIcon.icns
Bingpot!
What else do we have there?
$ find . -type f -name '*Folder*.icns' ./UsersFolderIcon.icns ./DocumentsFolderIcon.icns ./SidebarHomeFolder.icns ./ApplicationsFolderIcon.icns ./PrivateFolderBadgeIcon.icns ./GenericFolderIcon.icns ./PicturesFolderIcon.icns ./SidebarDesktopFolder.icns ./PublicFolderIcon.icns ./SidebarGenericFolder.icns ./SystemFolderIcon.icns ./ServerApplicationsFolderIcon.icns ./LibraryFolderIcon.icns ./ReadOnlyFolderBadgeIcon.icns ./SidebarBurnFolder.icns ./OpenFolderIcon.icns ./SmartFolderIcon.icns ./BurnableFolderIcon.icns ./SidebarDownloadsFolder.icns ./SidebarMoviesFolder.icns ./SidebarPicturesFolder.icns ./UtilitiesFolder.icns ./SidebarSmartFolder.icns ./HomeFolderIcon.icns ./SidebarApplicationsFolder.icns ./MovieFolderIcon.icns ./SidebarDocumentsFolder.icns ./DropFolderBadgeIcon.icns ./DownloadsFolder.icns ./GroupFolder.icns ./SidebarUtilitiesFolder.icns ./SidebarMusicFolder.icns ./DeveloperFolderIcon.icns ./NewFolderBadgeIcon.icns ./MusicFolderIcon.icns ./DesktopFolderIcon.icns ./SitesFolderIcon.icns ./SidebarDropBoxFolder.icns
These are good! Let’s look at them!
I wrote a script that converts all these .icns files to proper PNGs using the iconutil program.
#!/bin/sh
for icns in *.icns;
do
iconutil -c iconset "${icns}"
done
for iconset in *.iconset;
do
cp "${iconset}/icon_512x512@2x.png" "${iconset}-icon_512x512@2x.png" ||
cp "${iconset}/icon_32x32.png" "${iconset}-icon_32x32.png"
done
Here are the ones that we see basically every day!
Here are some of the exotic ones that we don’t always notice, in an alphabetical order.
The Burnable folder! Still supported even on macOS Ventura!
The Developer folder! If you don’t know where you should put your code, this is the right place for it!
The Group folder!
The Library!
The Public folder! Want to share something with your local network? Put it here!
The Server Applications Folder! Wait, what? I’ve never seen this before. If you know what this is, please leave a reply 🙂
The Sites folder! If you’re new to macOS, this is a kindly reminder that macOS ships with Apache2. Yes, and ~/Sites is the default UserDir, i.e. http://localhost/~yourusername
$ grep '^UserDir' /etc/apache2/extra/httpd-userdir.conf UserDir Sites
The System folder!
The User folder!
And finally… the Utilities folder which lives inside the Application folder!
As sad as it is, these are the old icons, i.e. pre-Ventura (I think). I wish if there was a way to click on a switch and change it back, since it’s all here anyway!
That’s all folks…
