the fix for known/unknown child UTIs to be handled by QLStephen, resolves #87

[toy]

So cheaply pretending to be a QLGenerator from Apple seems to be the way to make Quick Look use QLStephen also for UTIs with direct, indirect, explicit and implicit (for dynamic UTIs) conformance to UTI registered for it.

If this is the fix, I can only remember that most used language in programming is profanity.

[MikaelHashiCorp]

I tested this fix and it worked for me.

Commands and sample output:

git clone git@github.com:toy/qlstephen.git
cd qlstephen
git switch extensions-fix
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
make && make install
    xcodebuild SYMROOT=../build -project QuickLookStephenProject/QuickLookStephen.xcodeproj -configuration "Release" build
    2022-04-08 18:16:06.766
    ...
    ** BUILD SUCCEEDED **
qlmanage -m
    public.data -> /Users/mikael/Library/QuickLook/QLStephen.qlgenerator (1.5.1)

/Users/mikael/Library/QuickLook/QLStephen.qlgenerator/Contents/Info.plist:

			<key>LSItemContentTypes</key>
			<array>
				<string>public.data</string>
				<string>public.content</string>
				<string>public.unix-executable</string>
			</array>

Finder Screenshot:

Thank you Ivan.

*** UPDATE ***
2023-03-22: After updating my Intel Macbook 2019 to Venture, I had to remake and reinstall QLStephen, but it still works.

[glorious1]

This is not working for some reason:

`JimsMBPro:Packages jim$ git clone git@github.com:toy/qlstephen.git
Cloning into 'qlstephen'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
JimsMBPro:Packages jim$`

[toy]

@glorious1 Try git clone https://github.com/toy/qlstephen.git instead

[glorious1]

@toy
JimsMBPro:Packages jim$ git clone https://github.com/com:toy/qlstephen.git Cloning into 'qlstephen'... fatal: unable to access 'https://github.com/com:toy/qlstephen.git/': The requested URL returned error: 400
I think the problem must be that my github key expired or something. I'll work on it. Thanks.

[toy]

@glorious1 I failed with copy-pasting 🤦, see the corrected command

[glorious1]

I set up my github keys again and was able to get it with the original URL, thank you. Also thanks to @MikaelHashiCorp for putting in the build commands; I would have never guessed it requires Xcode and how to do it.

After running these for good measure:

qlmanage -r
qlmanage -r cache

it works like magic! Thank you @toy

EDIT: I found a few text files that didn't work, like xml, srt. I just used mdls to get their kMDItemContentType, like "public.xml" and "dyn.ah62d4um4ge81g6xy", and added them and "public.item" also to ~/Library/QuickLook/QLStephen.qlgenerator/Contents/Info.plist, the LSItemContentTypes array, and they work, which they didn't before.

[cvn]

This works! So many file extensions are working again. 🥲 Thank you, @toy!

On macOS 14.2.1, with Xcode 15.1, my first build failed with a warning about MACOSX_DEPLOYMENT_TARGET. So I opened the project in Xcode and set a Deployment Target. Then I ran make && make install again and it worked.