1 Oct 2014

Webkitss css rendering appendix code and gpu process part 1

A Visual Method for Understanding WebKit Layout


Getting the code

If you’re still with me, before you build anything, you’ll need to get a copy of the source code. WebKit uses Subversion for source control; however, most developers work with the Git mirror. If you’re on Windows, you should jump directly to the Building the code section below, as you need to have the code checked out to a specific location in order for the code to build. Otherwise, you can continue with this section.

Installing Git on Linux and Mac OS X

Installing Git is pretty straightforward on Linux and Mac OS X. On Linux, I’d suggest that you use your distribution’s package manager, but if you can’t do that for some reason, you can download Git from the Git Homepage.
For recent versions of Mac OS X, it is included in the Xcode developer tools, and you will need them to build the code anyways. Once you’ve installed Xcode, you will need to install the command line tools, which is located under Xcode -> Preferences -> Downloads in Xcode 4.5.2, and in a similar location in earlier versions.

Downloading the source

Once you have Git installed, grabbing the source is pretty straightforward. First, make sure you have at least 4 gigs of free space. Then, open a terminal, find a suitable directory, and run the following command:
view source
print?
1
git clone git://git.webkit.org/WebKit.git WebKit
This will take awhile, but when it’s done, you’ll have your very own copy of the WebKit source code.

That’s great, but I still don’t get this Git thing

Explaining how to use Git is beyond the scope of this post, but here are a couple of resources:
  • Using Git With WebKit: Documentation on using Git with WebKit
  • Pro Git: Free, professionally written book on Git

Getting and building the code

This is entirely optional, so if you don’t feel like setting this up or don’t have a machine powerful enough to do the build, feel free to skip to the next section. I will put in links to all of the code that I reference throughout the document, so you should be able to follow along with nothing more than the web browser you are using to read this.
Note that this section does not attempt to be a complete guide to setting up a build environment and getting a working build. That would be an entire blog series of its own!


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