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Create a Branch
3:40Branching allows you to work on multiple versions of your code at once, meaning you are free to experiment until you are ready to commit.
Branching allows you to conveniently work
on multiple versions of your code at once.
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It's an exact copy of the original
branch as it was at that point in time.
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This means you're free to experiment and
commit changes,
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safe in the knowledge that your new branch
won't be merged until you're ready.
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Let's create a branch to
work on the readme.md file.
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In the console, we'll type git branch and
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the name of the branch we would
like to create, add-readme.
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Branch names cannot contain spaces, so
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we generally use the hyphen to
separate words in our branch names.
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Now when we type git branch,
we see the name of our new branch, but
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we're still checked out to master.
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Type git checkout with the name of
the branch that we'd like to check out.
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Switch to branch add-readme.
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Great!
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Here's a short cut, git checkout-b and
the name of the branch will create
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the branch and
switch you to it with one command.
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From here,
we'll create a readme.md file and
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add some information about our repository.
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What makes a good readme?
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Well, it depends on the type of project.
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However, for our project, a simple
description of what it is will suffice.
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So, here we'll just type
touch README.md and
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in workspaces we just Refresh, and
we can see our README.md file is there.
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We can double-click on it.
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In the text editor,
we'll start with a header.
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We'll say Treehouse.
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This repo is for all my
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course files completed
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through team treehouse.
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And we'll save.
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Okay, so now we'll use the commands
from before, but with one small, but
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important difference.
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Instead of pushing to the master branch,
we'll push to our new branch, add-readme.
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So we'll type git status
on branch add-readme,
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Untracked files READM.md.
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Okay, so we'll need to add git add.
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Git commit- m, and we'll use
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a message "add readme file".
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Great.
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And, we'll git push origin add-readme.
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And we'll enter our credentials again.
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We'll go to our GitHub repo.
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And click Refresh, and
here we can see that our
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new branch was pushed up,
the add-readme branch.
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On the website,
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we can switch between the branches just
like we can on our local computer.
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We can see on the master
branch there is no readme, and
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on the add-readme branch there is.
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We can also see that there is now
a new prompt, Compare & pull request.
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In the next video, we'll cover
how to create a pull request to
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pull your changes into the master
branch from the new branch.
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But first, a review.
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In this video,
we learned [SOUND] that we can create and
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switch to a new branch from the master
branch with the git checkout -b command.
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Then, we added a file,
committed the change, [SOUND] and
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pushed up to GitHub using the git
push origin branch command.
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