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@ndarville
ndarville / diff.mdown
Created July 23, 2012 20:33
Paul Heckel's Diff Algorithm

[Isolating Differences Between Files][paper]

Advantage over Other Algorithms

The diff output is more specific:

[I]f a whole block of text is moved, then all of it, rather than just the beginning and end, is detected as changed.

>The algorithm described here avoids these difficulties. It detects differences that correspond very closely to our intuitive notion of difference.

@ekoneil
ekoneil / gist:6813974
Last active December 24, 2015 14:39
[Facebook iOS SDK example] Publish an Open Graph (OG) story that: 1/ uses image staging 2/ creates a custom, user-owned OG object 3/ creates a custom OG action
UIImage* image = [UIImage imageNamed:@"inspiration-2.jpg"]; // image stored in app's resources
// stage an image
[FBRequestConnection startForUploadStagingResourceWithImage:image
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if(error) {
NSLog(@"Error staging resource.\n%@", error);
int code = [[[[[error userInfo] objectForKey:@"com.facebook.sdk:ParsedJSONResponseKey"] objectForKey:@"body"] objectForKey:@"error"] objectForKey:@"code"];
if(code == 2500) {
@takuma7
takuma7 / opencv-fourcc-on-mac-os-x.md
Last active December 29, 2024 19:56
OpenCV Video Writer on Mac OS X
@ipbastola
ipbastola / clean-up-boot-partition-ubuntu.md
Last active August 16, 2024 13:39
Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r
@koenbok
koenbok / mac-tweaks.md
Last active April 23, 2022 22:37
My Favorite Mac Tweaks

Skip verifying disk images

defaults write com.apple.frameworks.diskimages skip-verify true

Always hide the Desktop

defaults write com.apple.finder CreateDesktop false; killall Finder

Make terminal logins fast

touch ~/.hushlogin

Disable most animations

@dive
dive / xed_xcode_invocation_tool.md
Last active September 4, 2024 02:20
Xcode invocation tool - xed

Xcode invocation tool - xed

xed is a command-line tool that launches the Xcode application and opens the given documents (xcodeproj, xcworkspace, etc.), or opens a new document, optionally with the contents of standard input.

If you work from the command line, this tool is a better option than open (which can open Xcode projects as well). Why?

  • xed knows about the current selected Xcode version (open behaves unpredictably if you have multiple Xcode installed)
  • You can use it open all files from a specific commit (with a little help explained below). It is useful on code-reviews or when you want to explore significant changes in the repository
  • You can use it as a "quick open" helper. Helps with monorepo phenomena, when you have hundreds of projects in the repository (I will show you an example below)
@dive
dive / xcrun_xcode_development_tools.md
Last active December 16, 2022 01:48
Multiple Xcode versions or Why `xcrun` is your friend

Multiple Xcode versions or Why xcrun is your friend

The story

I recently spent a few hours helping a friend of mine investigate a weird issue in their Continuous Development infrastructure. Builds were failing with different fatal errors mostly related to SDK paths and .platform directory locations. At first sight, it was clear that something is wrong with the current selected Xcode, but all our initial attempts to catch the problem failed.

In the end, we isolated the problem; one of the tools they use changes PATH silently for the environment to simplify access to Xcode tools. Due to their internal logic, the CD pipeline changes a current selected Xcode a few times on the way within the same script. In some cases, the pipeline ended with xcodebuild in the environment's PATH that does not reflect the expected version after the xcode-select --switch command.

How? Pretty easy, actually. A simplified sequence looked like this:

@dive
dive / current_selected_installed_xcode.md
Last active April 1, 2025 08:02
How to get the current selected Xcode and list installed

How to get the current selected Xcode and list installed

Current Selected Xcode

xcode-select

This is the most common way to get the path to the selected instance:

xcrun xcode-select --print-path



  


  




    


          
    

      

        
        

          

              @krzyzanowskim
          

          

            
                krzyzanowskim
                / StringGetSizeThatFits.swift
            
            

              Last active
              November 12, 2023 14:51
            

              
                Calculate frame of String, that fits given width
              
          

        

      

        

  

    
    


        



  


  

        

          
          // Excerpt from https://github.com/krzyzanowskim/CoreTextWorkshop
        

        

          
          // Licence BSD-2 clause
        

        

          
          // Marcin Krzyzanowski [email protected]
        

        

          
          

        

        

          
          func getSizeThatFits(_ attributedString: NSAttributedString, maxWidth: CGFloat) -> CGSize {
        

        

          
              let framesetter = CTFramesetterCreateWithAttributedString(attributedString)
        

        

          
              let rectPath = CGRect(origin: .zero, size: CGSize(width: maxWidth, height: 50000))
        

        

          
          

        

        

          
              let ctFrame = CTFramesetterCreateFrame(framesetter, CFRange(), CGPath(rect: rectPath, transform: nil), nil)