Git
Git is a revision control system that allows you to download and manage different versions of a program's source code.
Obtaining Git
Install git by means of your distribution as described at installing software. Or download it from http://git-scm.com/download.
using git
Example: The Linux kernel
To obtain the linux kernel (+/-150MB) for example,
- open a console and type:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git;
A subdirectory will be created for your project to contain the source files. To upgrade your project later 'cd' to this created directory and type:
git pull origin;
Editing code
You can change your code using your favorite editor, To see the changes:
git diff
To undo changes, type:
git checkout -f
You can also create branches to make distinct changes. To list the branches, type:
git branch
The 'master' branch is the root of the source. To create a new branch for your own modifications, type:
git checkout -b BRANCH_NAME master
To change the current branch to another, type:
git checkout BRANCH_NAME
create a git server
git is technically not a server because it does not listen on a port, but is used over a command invoked via ssh. So, here is how you set up a git repository:
tweedleburg:~ # mkdir gittest tweedleburg:~ # cd gittest/ tweedleburg:~/gittest # git init Initialized empty Git repository in /root/gittest/.git/ tweedleburg:~/gittest # echo hello>world tweedleburg:~/gittest # git add world tweedleburg:~/gittest # git commit -am "first commit" [master (root-commit) 4a0c108] first commit 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 world
Now you can clone your repository into another directory using
git clone ssh://root@localhost/root/gittest
See also
- revision control - parent topic
External links
- http://git.or.cz/
- https://github.com/ - one place where people and projects share their code with git