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@jonathantneal
jonathantneal / recovery.sh
Last active November 10, 2023 01:01
Create or update macOS Big Sur (or Catalina, or Mojave) Recovery Partition Without Reinstalling
#!/bin/sh
# Set the macOS installer path as a variable
MACOS_INSTALLER="/Applications/$(ls /Applications | grep "Install macOS")"
MOUNT_POINT="$MACOS_INSTALLER/Contents/SharedSupport"
echo "macOS installer is \"$MACOS_INSTALLER\""
# Set the target disk as a variable
TARGET=$(diskutil info "$(bless --info --getBoot)" | awk -F':' '/Volume Name/ { print $2 }' | sed -e 's/^[[:space:]]*//')
echo "Target disk is \"$TARGET\""
@leptos-null
leptos-null / cycript-mojave.md
Last active April 4, 2023 18:48
Using cycript on macOS Mojave

Cycript on Mojave

Cycript is a tool I find very helpful. It's an effective REPL for Objective-C. When I updated to macOS Mojave, I found that cycript no longer worked because it was linked against an old version of Ruby. After attempting to compile from source, I tried another solution. install_name_tool is an open source tool for modifying the names of linked shared libraries in a Mach-O.

Solution

$ install_name_tool -change /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.2.0.0.dylib /System/Library/Frameworks/Ruby.framework/Versions/Current/usr/lib/libruby.dylib Cycript.lib/cycript-apl
$ install_name_tool -change /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.2.0.0.dylib /System/Library/Frameworks/Ruby.framework/Versions/Current/usr/lib/libruby.dylib Cycript.lib/libcycript.dylib
@markmals
markmals / Swift Wish List.md
Last active June 12, 2022 21:10
Features I would like to see from Swift and its core ecosystem

Swift Wish List

Features I would like to see from Swift and its core ecosystem, to make it a robust and ergonomic language for all use cases.

  • ❌ = Unimplemented
  • 📜 = Manifesto
  • ⚾️ = Pitch
  • 💍 = Proposal
  • ⛔️ = Partially Implemented / Awaiting Implementation
  • ⚠️ = In Active Review
@Catfish-Man
Catfish-Man / Class Clusters
Last active June 27, 2024 02:32
As of iOS 11/macOS High Sierra, and only including ones in Foundation and CoreFoundation
Strings:
_NSCFString - a CFStringRef or CFMutableStringRef. This is the most common type of string object currently.
- May have 8 bit (ASCII) or 16 bit (UTF-16) backing store
_NSCFConstantString - a compile time constant CFStringRef, like you'd get with @"foo"
- May also be generated by dynamic string creation if matches a string in a pre-baked table of common strings called the StringROM
NSBigMutableString - an NSString backed by a CFStorage (https://github.com/opensource-apple/CF/blob/master/CFStorage.h) for faster handling of very large strings
NSCheapMutableString - a very limited NSMutableString that allows for zero-copy initialization. Used in NSFileManager for temporarily wrapping stack buffers.
@cyrfer
cyrfer / git-submodules-tldr.md
Last active May 24, 2021 20:50
git submodule tldr
@steipete
steipete / PSPDFDefer.m
Created May 31, 2017 14:33
Defer in ObjC. See more at https://pspdfkit.com/blog/2017/even-swiftier-objective-c
// Similar to defer in Swift
#define pspdf_defer_block_name_with_prefix(prefix, suffix) prefix ## suffix
#define pspdf_defer_block_name(suffix) pspdf_defer_block_name_with_prefix(pspdf_defer_, suffix)
#define pspdf_defer __strong void(^pspdf_defer_block_name(__LINE__))(void) __attribute__((cleanup(pspdf_defer_cleanup_block), unused)) = ^
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
static void pspdf_defer_cleanup_block(__strong void(^*block)(void)) {
(*block)();
}
#pragma clang diagnostic pop
@ismyrnow
ismyrnow / mac-clear-icon-cache.sh
Created May 5, 2017 19:28
Clear the icon cache on a Mac when you start seeing generic icons in Finder or the Dock
sudo rm -rfv /Library/Caches/com.apple.iconservices.store; sudo find /private/var/folders/ \( -name com.apple.dock.iconcache -or -name com.apple.iconservices \) -exec rm -rfv {} \; ; sleep 3;sudo touch /Applications/* ; killall Dock; killall Finder
@rtrouton
rtrouton / how-to-download-iOS-simulator-in-command-line-and-install-it.md
Created April 2, 2017 05:46 — forked from NicholasTD07/how-to-download-iOS-simulator-in-command-line-and-install-it.md
How to Download iOS Simulator (Xcode) in Command Line and Install it

How to Download iOS Simulator (Xcode) in Command Line and Install it

For faster connection speed and more flexibility.

Steps

  1. Start Xcode in command line by running this in commandline /Applications/Xcode.app/Contents/MacOS/Xcode
  2. Start downloading of the simulator
  3. Cancel it. YES CANCEL IT!
  4. You will get a message like this:
@jamieweavis
jamieweavis / macos-app-icon.md
Last active April 24, 2025 07:01
How to create an .icns macOS app icon
@arobb
arobb / sierra-virtualbox-install.md
Last active November 24, 2020 13:15
Install macOS Sierra in VirtualBox on macOS host

https://www.reddit.com/r/hackintosh/comments/4s561a/macos_sierra_16a238m_install_success_and_guide/

Step 1 (Creating a bootable macOS Sierra ISO for VirtualBox):

  1. hdiutil attach /Applications/Install\ macOS\ Sierra\ Public\ Beta.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app
  2. hdiutil create -o /tmp/Sierra.cdr -size 7316m -layout SPUD -fs HFS+J
  3. hdiutil attach /tmp/Sierra.cdr.dmg -noverify -nobrowse -mountpoint /Volumes/install_build
  4. asr restore -source /Volumes/install_app/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase
  5. rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages
  6. cp -rp /Volumes/install_app/Packages /Volumes/OS\ X\ Base\ System/System/Installation/
  7. cp -rp /Volumes/install_app/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/BaseSystem.chunklist