Category Archives: Xcode 5
If you’re not yet using source control with your Xcode projects, it’s something you want to seriously consider before a project you’re working on hits serious trouble. Setting up source control is easy when you create a new project (just tick the box in the project set up window), but figuring out how to add it to projects you’ve already created is a bit more challenging. In this post we’ll look at the ‘why’ and the ‘how’ of adding source control to an existing project.
In most normal applications, ‘Command-S’, Versions, Time Machine or other back up will save your hide when you either lose a document or realise a whole bunch of recent changes are something of a disaster. Recovering or reverting a document are mechanisms Apple has put a lot of time and effort into since Lion first appeared (changes I haven’t always been a fan of…).
However, these mechanisms do not work well with Xcode due to the complex and deep links between files in an Xcode build. If you’ve ever tried to go back to an earlier version of an Xcode project or undo some change from last week, and ended up with a headache, you’ll know what I’m talking about.
That’s what snapshots are for, you say? Yes, maybe. When they work. But in my experience snapshots themselves get lost, corrupted, or simply fail to restore.
Moreover, source control has other benefits aside from recovery and reversion that neither snapshots or any other mechanism provide. It’s primary purpose is to allow you to develop parallel but different versions of your project at the same time (a process known as ‘forking’). What if you want to experiment with adding some new feature, but don’t want to risk making changes right across your code that would be needed to try it out? What if you want to create one version of your project for one set of users and another one for others, or one version for an earlier OS X iteration and another for the current release?
Let’s get down to the nitty gritty. Let’s assume you’re convinced you want to add source control to your current project. The first thing you’ll need to do is install git if you haven’t already. If you’re not sure, open Terminal and enter
If you get back a version number, continue on to the next step. If not, you’ll need to install git first. Follow the instructions for doing that here and then return to this post.
Once git is installed, here’s the steps for adding source control to your existing repository:
1. Locate the project folder
Select the project in the sidebar on the right, and click the little ‘Open in Finder’ arrow on the right.
Once you’ve got the parent folder open in ‘Finder’, quit Xcode.
2. Open Terminal and switch to the project’s parent folder
Click on the project’s parent folder icon in Finder and drag it to a Terminal.app window. Hit ‘control-A’ on your keyboard to move the cursor to the beginning of the line and type ‘cd’. Press ‘return’ to complete the command.
I always like to do a quick ‘ls’ to double check I’m in the folder I think I am, and that it contains what I think it does.
git add .
git commit -m "Initial commit"
Notice that there’s a period after a space on the end of the second command. Don’t forget to include it.
4. Confirm your local repository
Reopen Xcode, and hit the ‘Source Control’ menu. You should now see the options are active.
You’ll notice that when you make changes in your Xcode project, an ‘M’ (‘modified) will appear next to the files that have been changed. When you’re happy that these are changes that you’re going to keep, use Source Control > Commit. Full documentation on how to use the various features of source control are available in Xcode’s documentation.
5. Add a remote repository
Local repositories are great, and may be enough for your needs, but for ultimate protection (such as against disk loss or failure), you might want to add remote back up. To do that, you’ll need an account with a service like GitHub or Bitbucket. My own personal preference is Bitbucket, largely because they allow you to have private repositories on a free account. Steps for adding your existing project to a remote repository can be found on your chosen service’s website. If you’re using Bitbucket, the general method is first create a new repository on the Bitbucket site and copy the link. Then, enter each of the following in Terminal, replacing the dummy text in square brackets with your actual values (remove the square brackets, too).
cd [path to your repo]
git remote add origin [url to your repository]
git push -u origin --all
git push -u origin --tags
After that, re-open your project in Xcode and you should be all set up. Check by ensuring the remote path is shown in Source Control > –> master > Configure…
No matter how many times I visit this page, I always find something new that I hadn’t tried before. So the title of this post is more of a suggestion than a description. Why not take a poke around Apple’s shortcut list and discover ten that you don’t already know? I’m going to give a quick round up of ten shortcuts that I use on a regular basis.
1. ⌘ ⌃ Space
Command-Control-Space is a universal shortcut (i.e., you can use it no matter what application is currently active) for bringing up the character viewer (see the screenshot, top of page). In order for it to work, the cursor must be in a text field where character entry is possible, but you can use it literally anywhere: text documents, search fields, browser bars, save dialogs, etc. I used it heavily in creating this post!
2. ⌘ ⌃ ⏏
Command-Control-Eject saves you having to trawl all the way up to the icon top left of your screen and choose ‘Restart…’. It’ll give you the chance to save any unsaved work or cancel the shutdown. This shortcut has a cousin, too: add the option key (⌘ ⌥ ⌃ ⏏ ) to the mix and you get Shutdown instead of Restart.
3. ⌘ ⌫
One of my pet annoyances is continually being asked if I want to save ‘Untitled’ documents, those that I’ve never saved before, when trying to quickly quit an app. Having to take my fingers off the keyboard to move the cursor down to that ‘Delete’ button is time-consuming, and tabbing to it takes multiple hits of the tab key. Fortunately, ‘Command-Delete’ will let you discard the document immediately from the keyboard in one quick shot.
4. ⌘ G
Most people are familiar with invoking ‘Find’ on a page by using ‘Command-F’, but have you ever got annoyed by having to mouse up to those tiny little jump arrows in order to cycle through the hits?
Save your eyes and use Command G instead! Note that you have to invoke Find with ‘Command F’ first.
5. ⌃A, ⌃E, ⌃K
That’s three separate shortcuts not one! In any text field, Control-A moves the cursor to the beginning of the line; Control-E moves it to the end, while ⌃K deletes everything from the cursor to the end of the line. Old-hands of the Terminal and other command-line utilities will know these well, but even they may be surprised that these work across a wide-range of GUI apps, too. Particularly useful in Web browser address bars, search fields, Spotlight and so on.
6. ⌘ L
Command-L in Safari and other browser-based apps (including Xcode’s Documentation viewer 😉 ) will immediately move the focus to the address bar/search bar and allow you to edit its contents. No clicking necessary!
7.⌘ ⌃ 1, ⌘ ⌃ 2, ⌘ ⌃ 3
Three commands new for Safari’s sidebar. Respectively, open the sidebar with Bookmarks showing, with Reading list showing, and with Shared links showing. Hitting the same shortcut again toggles the sidebar closed. Note that those are the numbers ‘1’, ‘2’ and ‘3’, not F1, F2, F3.
8. ⌘ ⇧ A, ⌘ ⇧ U, ⌘ ⇧ H, ⌘ ⇧ D
Again, that’s 4 different shortcuts, this time for the Finder. OK, hands up all those that switch to the Finder, hit Command-N to open a new window, and then click to their Desktop? Save yourself the grief (and the time), just activate Finder and hit Command-Shift-D. No need to open a window first, the shortcut will open a new window for you showing your Desktop folder. The others do the same thing but for different folders: Command-Shift-A opens your Applications folder, Command-Shift-U the Utilities folder, Command-Shift-H opens your Home folder.
9. ⌘ F1
This one’s for those of you with dual monitors or when your Mac is hooked up to a projector. Command-F1 toggles between mirroring and separate monitor views. Great for presentations.
10.(fn) ⌃ F8
Control-F8 activates the Status bar (top right row of icons on your screen). Use the left/right arrow keys to move along them, and the up/down arrows to select things in any menu. Hit ‘enter/return’ to perform the action. Note that on laptops you may need to invoke the fn ‘Function’ key, depending on your settings in Keyboard Preferences.
This is a great one for turning on/off Bluetooth, Wifi and checking Mavericks’ new Energy monitor in the Battery/Power icon. Mostly though, I use it for manually starting Time Machine backups or entering TM’s “star wars” interface (oh, and as a bonus…note that (fn) ⌃ F2 activates the other side of the menu bar (i.e., the menu). Enjoy!
Got your own favourite shortcuts? Tell us what you use most in the Comments! 🙂
FastTasks now makes it simple to check the current TRIM status of your disk, and to either enable or disable it with a simple click, particularly useful if you find that TRIM has been turned off by an OS X software update or upgrade.
Note that you need to restart your mac after using the radio buttons to change the TRIM status in order to complete the process.
Choose ‘Scheme >Edit Scheme’, click on ‘Run in the sidebar, and click the ‘Info’ tab in the main panel.
You should now see the drop-down menu that allows you to switch between ‘Debug’ and ‘Release’.