How to use git to checkout a specified version of Webkit?

Question

Thank you. From the link http://trac.webkit.org/wiki/UsingGitWithWebKit, there are these 3 steps in checking out Webkit using git.

Which step i need to change to specify checkout a right version of Webkit for chromium?

Thank you.

git clone git://git.webkit.org/WebKit.git WebKit
cd WebKit
git svn init -T trunk http://svn.webkit.org/repository/webkit
git update-ref refs/remotes/trunk origin/master
git svn fetch

Answer 1

It doesn't look to me like you have to also track the Subversion repository, so if all you are really interested in is getting some version of WebKit from the past, this will do that:

git clone git://git.webkit.org/WebKit.git WebKit
cd WebKit
git checkout <tag>

Where <tag> is the tag applied to the version you care about. I can't tell you what version you want, but you can get a list of tags using git tag. If one doesn't match the version you want, find out what the SHA1 hash is for the revision you want and specify that instead of a tag name.

Answer 2

In the Chromium tree you'll find a file called DEPS. The 4th line of that file will specify the WebKit revision for that Chromium tree.

Note that Chromium rolls WebKit daily (except weekends).

Answer 3

git fetch origin <branch name>
git checkout <branch name>
git pull --tags # pulls all tags from the remote repo
git checkout <tag name> # checks out that tag from the remote repo

This will pull down the tag from the git repo and then checkout that tag into your working copy. This is assuming of course that the git repo has these tags or branches to fetch and checkout.

If the git repo does not have those tags you will have to use the git svn commands to do it.

$ REF=$(git svn find-rev r<revision>) git checkout $REF
$ git checkout -b <branchname> # if you want to create  branch from this commit
$ git tag <tagname> # if you want to create a tag from this commit

git svn find-rev finds the git commit ref for the svn revision specified.