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Contributing to the Persistent Memory Development Kit

Down below you'll find instructions on how to contribute to the Persistent Memory Development Kit.

Your contributions are most welcome! You'll find it is best to begin with a conversation about your changes, rather than just writing a bunch of code and contributing it out of the blue. There are several good ways to suggest new features, offer to add a feature, or just begin a dialog about the Persistent Memory Development Kit:

NOTE: If you do decide to implement code changes and contribute them, please make sure you agree your contribution can be made available under the BSD-style License used for the Persistent Memory Development Kit.

NOTE: Submitting your changes also means that you certify the following:

Developer's Certificate of Origin 1.1

By making a contribution to this project, I certify that:

(a) The contribution was created in whole or in part by me and I
    have the right to submit it under the open source license
    indicated in the file; or

(b) The contribution is based upon previous work that, to the best
    of my knowledge, is covered under an appropriate open source
    license and I have the right under that license to submit that
    work with modifications, whether created in whole or in part
    by me, under the same open source license (unless I am
    permitted to submit under a different license), as indicated
    in the file; or

(c) The contribution was provided directly to me by some other
    person who certified (a), (b) or (c) and I have not modified
    it.

(d) I understand and agree that this project and the contribution
    are public and that a record of the contribution (including all
    personal information I submit with it, including my sign-off) is
    maintained indefinitely and may be redistributed consistent with
    this project or the open source license(s) involved.

In case of any doubt, the gatekeeper may ask you to certify the above in writing, i.e. via email or by including a Signed-off-by: line at the bottom of your commit comments.

To improve tracking of who is the author of the contribution, we kindly ask you to use your real name (not an alias) when committing your changes to the Persistent Memory Development Kit:

Author: Random J Developer <random@developer.example.org>

Code Contributions

Please feel free to use the forums mentioned above to ask for comments & questions on your code before submitting a pull request. The Persistent Memory Development Kit project uses the common fork and merge workflow used by most GitHub-hosted projects. The Git Workflow blog article describes our workflow in more detail.

Before contributing please remember to run:

	$ make cstyle

This will check all C/C++ files in the tree for style issues. To check C++ files you have to have clang-format version 9.0, otherwise they will be skipped. If you want to run this target automatically at build time, you can pass CSTYLEON=1 to make. If you want cstyle to be run, but not fail the build, pass CSTYLEON=2 to make. There is also a target for automatic C++ code formatting, to do this run:

	$ make format

There are cases, when you might have several clang-format-X.Y binaries and either no clang-format or it pointing to an older version. In such case run:

	$ make CLANG_FORMAT=/path/to/clang-format cstyle|format

If you are actively working on a PMDK feature, please let other developers know by creating an issue. Use the template Feature and assign it to yourself (due to the way GitHub permissions work, you may have to ask a team member to assign it to you).

Bug Reports

Bugs for the PMDK project are tracked in our GitHub Issues Database.

When reporting a new bug, please use New issue button, pick proper template and fill in all fields. Provide as much information as possible, including the product version:

PMDK version

Put the release name of the version of PMDK running when the bug was discovered in a bug comment. If you saw this bug in multiple PMDK versions, please put at least the most recent version and list the others if necessary.

  • Stable release names are in the form #.# (where # represents an integer); for example 0.3.
  • Release names from working versions look like #.#+b# (adding a build #) or #.#-rc# (adding a release candidate number) If PMDK was built from source, the version number can be retrieved from git using this command: git describe

For binary PMDK releases, use the entire package name. For RPMs, use rpm -q pmdk to display the name. For Deb packages, run dpkg-query -W pmdk and use the second (version) string.

Priority

Requested priority describes the urgency to resolve a defect and establishes the time frame for providing a verified resolution. Priorities are defined as:

  • P1: Showstopper bug, requiring a resolution before the next release of the library.
  • P2: High-priority bug, requiring a resolution although it may be decided that the bug does not prevent the next release of the library.
  • P3: Medium-priority bug. The expectation is that the bug will be evaluated and a plan will be made for when the bug will be resolved.
  • P4: Low-priority bug, the least urgent. Fixed when the resources are available.

Other issues

On our issues page we also gather feature requests and questions. Templates to use are Feature and Question, respectively. They should help deliver a meaningful description of a feature or ask a question to us (remember though we have different means of communication, as described at the top of the page).