The project is maintain by volunteers and is open to anybody interested in contributing to the project. To contribute, you can write code, review code, report bugs, suggest ideas, propose design changes, write documentation, answer questions in the mailing list, and much more. The more you contribute the more you can make a difference.
S4 sources are available through git. Most development is done on the piper branch
See a summary here.
access to the repository
- as a committer:
git clone https://firstname.lastname@example.org/repos/asf/incubator-s4.git
- as a user or contributor:
git clone http://git-wip-us.apache.org/repos/asf/incubator-s4.git(though since June 2012, you may have to try with https :
git clone https://git-wip-us.apache.org/repos/asf/incubator-s4.git, even though this is not reflected yet on the Apache git documentation).
For more information, have a look there: https://git-wip-us.apache.org/
creating an eclipse project
./gradlew eclipseYou can now import the project into Eclipse. To learn more, visit the Gradle website.
Before you start, send a message to the S4 developer mailing list, or file a bug report in Jira. Describe your proposed changes and check that they fit in with what others are doing and have planned for the project.
modifying the source code
Here are a few things to keep in mind:
- All public classes, interfaces, and methods should have informative Javadoc comments.
- BAD: getCondensedLength(): Gets condensed length.
- BETTER: getCondensedLength(): Number of characters in the string, excluding non alpha-numeric characters.
- Indent four spaces per level, not two or six or eight, etc... four.
- No tabs for indentation, spaces only.
automatic source code formatting
You must configure your IDE to follow the formatting guidelines. This is needed to get clean diffs.
To automatically format code in Eclipse:
- preferences --> Java --> Code style --> Formatter , then import s4/config/eclipse/s4-eclipse-format.xml
- preferences --> Java --> Editor --> Save actions --> format source code, format all lines
If you don't use Eclipse, you may still use Eclipse's code formatter in a standalone mode.