oanhnn

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

1. Generate ssh key pairs for accounts and add them to GitHub accounts.

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

DarinM223

My explanation of the main concepts in Rust

There are three main concepts with Rust:

1. Ownership (only one variable "owns" the data at one time, and the owner is in charge of deallocating)
2. Borrowing (you can borrow a reference to an owned variable)
3. Lifetimes (all data keeps track of when it will be destroyed)

These are fairly simple concepts, but they are often counter-intuitive to concepts in other languages, so I wanted to give a shot at

benvium

#!/bin/bash -e

# --------------------------------------------------------
# Generate app icons and xcassets file from a single image
# Ben Clayton, Calvium Ltd. 
# --------------------------------------------------------
# To use this, place script in `appname` folder inside your project (i.e. the folder that Xcode generates for you containing your source code, it's named after whatever you called the app). 
# Create folder there called `RawImages`. 
# Source icon should 1024x1024 and be called appIcon.png. If the icon changes, you can just run this again to regenerate everything.
# This script assumes that you have the default setup of an Images.xcassets file containing the AppIcon.appiconset. 

joakin

# If you don't remember the exact path/name, search the log for deleted files
git log --diff-filter=D --summary | grep delete
# Find the file you want to get from the ouput, and use the path
# Find the commits that involved that path
git log --all -- some/path/to/deleted.file
# Bring the file back to life to the current repo (sha commit of parent of commit that deleted)
git checkout shaofthecommitthatdeletedthefile^ -- some/path/to/deleted.file

brennanMKE

- (CGFloat)heightForAttributedString:(NSAttributedString *)text maxWidth:(CGFloat)maxWidth {
    if ([text isKindOfClass:[NSString class]] && !text.length) {
        // no text means no height
        return 0;
    }
    
    NSStringDrawingOptions options = NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading;
    CGSize size = [text boundingRectWithSize:CGSizeMake(maxWidth, CGFLOAT_MAX) options:options context:nil].size;