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Working on Jim
Jim's sources are kept in Git Version Control System. Global repository of
Jim project is placed on this Web site:
There are two ways of contributing to Jim project. First is suited for
one-time fixes and small corrections. The second is more appropriate
for long-term contributors interested in Jim internals.
Small changes
For small modifications, procedure of preparing a traditional 'patch'
is enough. In order to prepare a patch, you first have to obtain the
most recent copy of Jim Tcl. This can be done with following command:
git clone
After entering newly created directory you can easily correct/fix/modify
files. Once finished, patch can be easily generated:
git diff > my_patch_fixing_x_y.patch
If working without Git system, you'll have to backup files first, modify
the original files and obtain a patch manually:
cp jim.c jim.c.ORIGINAL
[...] <- modifications go here
diff -u jim.c.ORIGINAL jim.c > my_patch_fixing_z.patch
Bigger changes
In order to help extending and correcting Jim in a long term basis, one
needs to create separate fork of Jim project and maintain his changes in a
separate copy of a repository.
By visiting this site, you'll have a chance to fork a project. This can
be easily done with "fork" link. Form that will show up next refers to
the project that is about to be started. The only thing that has to be
taken care of is the project mode -- it should be "push mode".
Once the project is created one must add a user that will actually
start commiting new files to the repo. It can also be done through the
WWW interface, so nothing more is necessary.
Once finished with setting up a project on the WWW panel, one can
start playing with actual import of the files. In order to obtain copy
of Jim sources, we have to clone the repository:
git clone
Now, we must push fresh copy of Jim to your project URL:
git push <URL> master
So for example for me it was:
git push ssh:// master
In order to add file we type "git add <file>". For remove, we do "git rm
<file>". To remove all local changes that aren't in a repository you do "git
reset --hard HEAD". Once inserted, files have to be commited with "git commit
-a". Once done with commits for today, "git push" can be used to propagate
changes from your local disk to the remote repository.
Right now you can verify whether this works by trying to clone your
project's repository somewhere else, this time using anonymount HTTP
git clone
Review, testing and publishing
Notification of work that can be considered finished is more than welcome on
Jim-devel mailing list:
Patches prepared with the procedures presented abore are welcome. Before
submitting patches, you can verify that your changes didn't bring any
regressions to the Jim. In order to do so, sample regression tests have
been implemented. You can execute them by typing:
make test
All tests should succeed.