Pull Requests

The source code of the D compiler (dmd), runtime library (druntime), and standard library (Phobos), are all available at GitHub.

Creating your fork

To contribute to the D compiler, runtime library, or standard library, you need to create an account on GitHub, and then navigate to the D programming language project (as linked above), then create a fork of that project.

For example, if you wish to submit a patch to the D compiler, you should navigate to D-Programming-Language/dmd, then click on the "Fork" button at the top right corner of the page. This will clone the D compiler sources into your list of projects.

Checkout the sources

See also: Using Git on Windows

Once you have forked the project you wish to contribute to, use git to checkout a local copy of the project.

Generally, you should checkout a copy of at least dmd, druntime, and phobos in order to have a working compiler toolchain that you can use to test your changes.

Source code structure

The D source code assumes a particular directory structure, which you probably would want to adopt so that you don't have to fiddle with the Makefiles all the time.

Posix

For Posix, it is assumed that you will have a common root directory where the compiler and library sources will sit under. For example, you can choose the common root directory to be /usr/src/d, then you can checkout the sources under this directory:

% mkdir /usr/src/d
% cd /usr/src/d
% git clone git://github.com/D-Programming-Language/dmd.git
% git clone git://github.com/D-Programming-Language/druntime.git
% git clone git://github.com/D-Programming-Language/phobos.git

You should end up with this directory structure:

/usr/src/d/
/usr/src/d/dmd
/usr/src/d/druntime
/usr/src/d/phobos

Windows

TBD

Building the sources

TBD

Make your changes in a branch

Generally, it is preferred that any changes you wish to contribute should be made in its own dedicated topic branch. For example, if you have a fix for issue 1234 in the D compiler, you might want to do something like this:

% cd /usr/src/d/dmd/src
% git checkout -b issue_1234
% vim expression.c   # make your changes here
% make -f posix.mak
% ...                # test your changes here
% git commit -a      # commit to the branch named 'issue_1234'
% git push origin    # push changes to your fork of DMD