Version Control with Git

Quick reference

• 00:04 In this video I want to talk about version control.
• 00:07 And version control is not a PHP thing, it's a coding thing.
• 00:10 Anytime you're writing code you want to save it.
• 00:13 Now obviously,
• 00:14 we're going to save it by hitting Ctrl+S in our Sublime text editor here.
• 00:17 But that's not what I'm talking about, version control is slightly different.
• 00:20 Version control keeps track of who made changes,
• 00:23 when they made changes, it keeps track of old versions as you go.
• 00:28 So if you do something to kind of screw up your code,
• 00:30 you can roll it back to an older version.
• 00:32 It's great for teams, so if you're working on a team with a lot of other people,
• 00:36 it keeps track of who makes the changes.
• 00:38 If Bob over there makes a mistake, it records that Bob did that,
• 00:42 then you can roll that back later on.
• 00:44 So, it's just super important in programming in general, and
• 00:47 it's just a good idea to set up version control anytime you're coding.
• 00:51 You need a couple of tools to do that, and you need a terminal mainly with Git.
• 00:55 And if you're on a Mac or Linux, it comes with a terminal, you can just go to your
• 00:59 search function and search terminal and use that, that's perfectly fine.
• 01:02 But Windows doesn't have a great terminal.
• 01:04 So we need to download and install one.
• 01:06 And the one that I like is called Git Bash.
• 01:10 So you just head over to Google and type in Git Bash.
• 01:12 And this is the Web site, git-scm.com/downloads.
• 01:17 And if this version changes by the time you watch this video, no big deal,
• 01:20 just go ahead and download the latest version.
• 01:22 So click here.
• 01:24 It should download.
• 01:25 Now save this anywhere.
• 01:26 I'm just going to save it on my desktop.
• 01:28 And this is a notoriously slow website, usually takes a while for
• 01:31 this to download.
• 01:32 Okay, so once that's finished downloading,
• 01:35 you can click this to run the installation program.
• 01:38 And I'll walk you through this,
• 01:40 it's slightly more complicated than you might expect.
• 01:43 It's not actually hard, but there's a whole lot of stuff here.
• 01:46 All right, so go ahead and click Next here, we just want the defaults for
• 01:49 all of these, and here it asked what text editor we're going to be using.
• 01:52 Sublime is the first one it lists and this is kind of weird because this terminal
• 01:56 won't interact with Sublime in any way.
• 01:59 So if you don't use Sublime, it doesn't really matter,
• 02:02 just leave it as Sublime and go ahead and click Next.
• 02:05 Click Next, we just want the default here, we want the default here, and
• 02:08 we want the default here.
• 02:10 We want the default here as well.
• 02:11 Basically, we're going to take the default for all of these things.
• 02:14 Click Next.
• 02:15 And finally, click Install.
• 02:17 Now, I'm not going to do this because I've already installed it on my compter.
• 02:20 But you'll go ahead and click Install and
• 02:22 it'll just finish the installation process.
• 02:24 So I'm going to click Cancel.
• 02:26 Now just head over to your Windows start menu and type in G-I-T and
• 02:31 then it should pop up.
• 02:33 So here it is, now your screen will look a little different,
• 02:35 my computer is called flatplanet.
• 02:37 I don't think the world is flat, I just find it kind of funny that some people do,
• 02:40 so I named my computer that.
• 02:41 Whatever your logged in username is or computer name is,
• 02:44 you'll see this right here.
• 02:45 The first thing we need to do is navigate to the directory where we're saving all
• 02:49 of our files.
• 02:50 So we use the cd command, it stands for change directory.
• 02:53 And we want to move to cd xampp.
• 02:56 And remember we're in the htdocs directory, inside of that.
• 03:00 And then inside of that, we want php-course.
• 03:04 So you can see if we type in pwd, it shows us that in fact, yep,
• 03:08 we're in that directory.
• 03:09 Now, we can type ls to list the stuff in this directory, and
• 03:12 the only thing in there is that index file we just created in the last video.
• 03:16 So okay, so far so good.
• 03:18 Go ahead and clear the screen.
• 03:20 Now, in order to set up git for the first time, we need to issue some commands.
• 03:24 We just need to type in four or
• 03:25 five little commands here to get this initialized.
• 03:28 So type in git config --global user.name and then your name.
• 03:34 Remember I told you git keeps track of who makes what changes.
• 03:39 So then git config --global user.email and
• 03:44 type in your email address.
• 03:47 And in the next video, we're going to push our code up to GitHub,
• 03:51 which is a third party website.
• 03:53 So you use the same email address you plan on using to sign up for
• 03:56 github.com, which is free and we'll talk about later.
• 03:58 All right, next we want git config
• 04:04 --global push.default space matching.
• 04:11 All right, two more, git config --global,
• 04:17 and then alias.co checkout.
• 04:20 And then finally get init, and this will initialize git.
• 04:25 And you see once we did that, now it says master.
• 04:27 So when you save your code to git, you're saving it to the master branch, right?
• 04:32 And if you want to make, think of like a tree,
• 04:35 different limbs off of the master branch, you can,
• 04:37 we're not going to get into that in this course, it's not really a course on git.
• 04:41 We're just going to be using basic functionality.
• 04:43 So now, we can clear the screen.
• 04:45 Now from now on, anytime we want to save a version of our code,
• 04:49 we just type in get add period.
• 04:52 And the period stands for everything, it's going to add everything in this directory.
• 04:56 In our case, we only have one file.
• 04:58 Then we type in, git commit -am and then give this a little message.
• 05:04 I'm going to call this initial commit.
• 05:07 And every time you type a message, sort of describe what you just did with your code.
• 05:12 So if you made a major change to your code, where you added a new about page,
• 05:17 you would type in added about page as your little message.
• 05:21 And you'll see why these messages are important later on.
• 05:24 And that's it, we've now committed our code to the master branch or
• 05:28 get repository and we're good to go.
• 05:30 Now in the next video, I'm going to talk about pushing all of these stuff to GitHub
• 05:35 which is a third party website that sort of keeps track all the stuff for you, and
• 05:39 that'll be in the next video.

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