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Git Essential Training
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Adding a remote repository


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Git Essential Training

with Kevin Skoglund

Video: Adding a remote repository

In the last movie we created a GitHub account and created an initial GitHub repository, and that's on the remote server that we can then connect to. We now need to tell our local repository information about where it can find the remote. When we set up the remote repository, GitHub came up and offered us some helpful information. Go ahead and leave that page up, because we're going to want to come back to that. But first I want to switch over to your command line and make sure that you're inside the root of your project already. If not, you'll want to navigate into it, and from there let's type our first command which is git remote.
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  1. 2m 46s
    1. Introduction
      1m 7s
    2. How to use the exercise files
      1m 39s
  2. 20m 24s
    1. Understanding version control
      4m 48s
    2. The history of Git
      7m 58s
    3. About distributed version control
      5m 4s
    4. Who should use Git?
      2m 34s
  3. 26m 12s
    1. Installing Git on a Mac
      3m 44s
    2. Installing Git on Windows
      5m 37s
    3. Installing Git on Linux
      1m 30s
    4. Configuring Git
      7m 29s
    5. Exploring Git auto-completion
      5m 35s
    6. Using Git help
      2m 17s
  4. 15m 49s
    1. Initializing a repository
      1m 58s
    2. Understanding where Git files are stored
      2m 34s
    3. Performing your first commit
      2m 4s
    4. Writing commit messages
      5m 22s
    5. Viewing the commit log
      3m 51s
  5. 17m 44s
    1. Exploring the three-trees architecture
      3m 57s
    2. The Git workflow
      3m 15s
    3. Using hash values (SHA-1)
      4m 7s
    4. Working with the HEAD pointer
      6m 25s
  6. 25m 52s
    1. Adding files
      5m 59s
    2. Editing files
      3m 56s
    3. Viewing changes with diff
      3m 35s
    4. Viewing only staged changes
      2m 28s
    5. Deleting files
      5m 29s
    6. Moving and renaming files
      4m 25s
  7. 19m 18s
    1. Introducing the Explore California web site
      2m 2s
    2. Initializing Git
      3m 48s
    3. Editing the support phone number
      6m 20s
    4. Editing the backpack file name and links
      7m 8s
  8. 38m 45s
    1. Undoing working directory changes
      3m 49s
    2. Unstaging files
      2m 37s
    3. Amending commits
      4m 50s
    4. Retrieving old versions
      4m 7s
    5. Reverting a commit
      3m 12s
    6. Using reset to undo commits
      3m 44s
    7. Demonstrating a soft reset
      4m 8s
    8. Demonstrating a mixed reset
      4m 7s
    9. Demonstrating a hard reset
      5m 8s
    10. Removing untracked files
      3m 3s
  9. 27m 22s
    1. Using .gitignore files
      8m 23s
    2. Understanding what to ignore
      4m 47s
    3. Ignoring files globally
      4m 49s
    4. Ignoring tracked files
      5m 26s
    5. Tracking empty directories
      3m 57s
  10. 26m 51s
    1. Referencing commits
      4m 52s
    2. Exploring tree listings
      3m 46s
    3. Getting more from the commit log
      7m 38s
    4. Viewing commits
      4m 4s
    5. Comparing commits
      6m 31s
  11. 39m 35s
    1. Branching overview
      4m 56s
    2. Viewing and creating branches
      2m 57s
    3. Switching branches
      2m 58s
    4. Creating and switching branches
      4m 53s
    5. Switching branches with uncommitted changes
      3m 26s
    6. Comparing branches
      4m 28s
    7. Renaming branches
      2m 28s
    8. Deleting branches
      4m 18s
    9. Configuring the command prompt to show the branch
      9m 11s
  12. 28m 32s
    1. Merging code
      3m 11s
    2. Using fast-forward merge vs. true merge
      6m 49s
    3. Merging conflicts
      7m 26s
    4. Resolving merge conflicts
      7m 5s
    5. Exploring strategies to reduce merge conflicts
      4m 1s
  13. 14m 34s
    1. Saving changes in the stash
      4m 5s
    2. Viewing stashed changes
      2m 39s
    3. Retrieving stashed changes
      4m 24s
    4. Deleting stashed changes
      3m 26s
  14. 1h 5m
    1. Using local and remote repositories
      6m 38s
    2. Setting up a GitHub account
      5m 39s
    3. Adding a remote repository
      4m 0s
    4. Creating a remote branch
      4m 3s
    5. Cloning a remote repository
      4m 26s
    6. Tracking remote branches
      4m 5s
    7. Pushing changes to a remote repository
      5m 8s
    8. Fetching changes from a remote repository
      5m 47s
    9. Merging in fetched changes
      4m 50s
    10. Checking out remote branches
      3m 22s
    11. Pushing to an updated remote branch
      2m 6s
    12. Deleting a remote branch
      3m 8s
    13. Enabling collaboration
      3m 40s
    14. A collaboration workflow
      8m 43s
  15. 16m 23s
    1. Setting up aliases for common commands
      5m 14s
    2. Using SSH keys for remote login
      2m 56s
    3. Exploring integrated development environments
      1m 4s
    4. Exploring graphical user interfaces
      4m 32s
    5. Understanding Git hosting
      2m 37s
  16. 55s
    1. Goodbye
      55s

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Git Essential Training
6h 26m Beginner Aug 24, 2012

Viewers: in countries Watching now:

The course shows how to use Git, the popular open-source version control software, to manage changes to source code and text files. Using a step-by-step approach, author Kevin Skoglund presents the commands that enable efficient code management and reveals the fundamental concepts behind version control systems and the Git architecture. Discover how to track changes to files in a repository, review previous edits, and compare versions of a file; create branches to test new ideas without altering the main project; and merge those changes into the project if they work out. The course begins by demonstrating version control in a single-user, standalone context, before exploring how remote repositories allow users to collaborate on projects effectively.

Topics include:
  • Exploring the history of version control
  • Installing Git on Mac, Windows, and Linux
  • Initializing a repository
  • Writing useful commit messages
  • Understanding the Git three-tree architecture
  • Tracking when files are added, edited, deleted, or moved
  • Viewing change sets and comparing versions
  • Undoing changes and rolling back to previous versions
  • Ignoring changes to select files
  • Creating and working with code branches
  • Merging branches and resolving merge conflicts
  • Stashing changes for later
  • Working with hosted repositories and remote branches
  • Developing an effective collaboration workflow
Subject:
Developer
Software:
Git GitHub
Author:
Kevin Skoglund

Adding a remote repository

In the last movie we created a GitHub account and created an initial GitHub repository, and that's on the remote server that we can then connect to. We now need to tell our local repository information about where it can find the remote. When we set up the remote repository, GitHub came up and offered us some helpful information. Go ahead and leave that page up, because we're going to want to come back to that. But first I want to switch over to your command line and make sure that you're inside the root of your project already. If not, you'll want to navigate into it, and from there let's type our first command which is git remote.

So git remote will come up and give us a list of all the remotes that it knows about. It doesn't know about any right now about. So it doesn't return anything. The git remote works a lot like git branch does. We use git branch to see all the branches, git remote shows us all the remotes that we know about. Now the next command we want to do is git remote add. So git remote add will add a remote and then what we want to put in. Don't type this part. Just wait for second. Git remote add and then the alias for what we want to name our remote followed by the URL of where it can find it.

Let's go back and look at that and GitHub page again, because it tells you the name, the URL, where you can find it. That's what this is right here. So you can just copy and paste that, and it suggests the default name of origin. Now this is an alias. You can call it whatever you want. Let's say origin and then that whole long string pasted in. This will create a new remote called origin that points to that remote server at that URL. Now we don't have to call it origin. By convention, typically, you call your primary one origin, that's what most people do.

But if you want you can call it GitHub let's say. I'm going to go head and call mine origin just so we can stick with that default convention. Now I do want to make sure that I call attention to the fact that I'm using a URL which has my name in it, because that's for my GitHub account. Of course, for you, you will want to make sure that you are using the one that has your GitHub account, and from now on if you're using the exercise files where we have a remote defined, you will want to make sure that you take a second to change that remote to point to your GitHub account, not to mine.

So that's very important. You want to make sure that you customize it so that it's looking at your remote repository, and not trying to find the one that I created. Now it's worth noting that you can have more than one remote for your project. We don't have to just have this one remote server out there that we are connecting to. You can have several different ones and in that case you would definitely want to give them each a different name. So now lets try out git remote command again. Git remote, and this says ah, here is origin. Let's do git remote with the -v option after it, that will give us a little more information.

Now it shows us the URL that it's going to use for fetching and the one that it's going to use for pushing. Now typically those are going to be the same ones, but they don't have to be. It could be different ones. We could have a read-only remote that we're fetching from, but we're pushing to one that lets us write. And if you're wondering how Git now knows about these remotes, it stores those in the .git folder of course, in config. Let's take a look that file, and you can see that now it says, okay, I have a remote called origin and here's the URL for it, and these are instructions that Git will use to tell it what information it's going to pull down from the remote repository when it does a fetch.

The last thing I want to show you is just that if you want to remove a remote is just simply git remote rm followed by the alias. So that would remove the origin remote that we just created. So I've removed that. If we now take a look, you will see it's not in our config file, and of course, I can add it again just like that, and now git remote shows me it in the list again. So now our local repository knows about the GitHub repository that we've created. We haven't shared any data yet. None of our branches or commits or anything like that are on the remote repository yet.

At this point, we've just simply created the mechanism by which they can establish a connection so that we can begin pushing our code up to the remote repository, and that's what we will start doing in the next movie.

Find answers to the most frequently asked questions about Git Essential Training.


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Q: In the Chapter 10 movie "Configuring the command prompt to show the branch," when I type the function "__git_ps1," I do not get the expected result.
A: The function "__git_ps1" was recently moved to a new file, .git-prompt.sh, as described here: https://github.com/git/git/commit/af31a456b4cd38f2630ed8e556e23954f806a3cc.

We will update the video. In the meantime, you may do the same steps you do for .git-completion.bash, but a second time using ".git-prompt.sh" as shown here: https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh.
Q: When I use the code the instructor advises in the above video ("git config
--global user.name "Nelda Street"), I still get an "Illegal Instruction"
error. I have OS 10.6.8. Am I doing something wrong?
A: The current installer version of git isn't compatible with older Mac OS versions.
 
https://code.google.com/p/git-osx-installer/issues/detail?id=96
 
The workaround solutions people offer are:
 
1. To add "-mmacosx-version-min=10.6" as described here:
https://stackoverflow.com/questions/14268887/what-is-the-illegal-instruction-4-error-and-why-does-mmacosx-version-min-10
 
https://stackoverflow.com/questions/10177038/illegal-instruction-4-shows-up-in-os-x-lion
 
2. Or to use the version of git that comes with Xcode, or to use homebrew to install git instead.
http://superuser.com/questions/697144/installed-git-not-sure-how-to-get-it-working
 
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