light/docs/guidelines/development.rst

147 lines
5.3 KiB
ReStructuredText

.. guidelines/development
Development
===================================================================================================
As a solo-project, I am not only the **developer**, but also the **manager**.
Therefore there is a need, if this project is to succeed, to have a development plan.
Such a plan should:
- Define a way to **distribute work** (across time, since there's only 1 developer).
- Define what is a **unit of work** (cycles).
- Provide a way to **track productivity**, which helps projecting the future and **detecting patterns** early on.
- Provide a **pipeline** for the work to go through and **minimize ambiguity**.
These are the **management** aspects of the project, which help the development goals to be more **pragmatic**
---by pulling my mind out of its **engineering dreamland**, and make it focus on the **broader picture**.
Cycle
---------------------------------------------------------------------------------------------------
A cycle is one **step** in development, one cycle = one ticket, and it consists of 4 stages:
1 - Make it known
- Write the commit message.
- This limits the **scope of changes** and gives you a very specific **goal** to work towards.
- If something outside of this scope really bothers you, fix and stash for a future cycle.
- Make a ticket if stash-fix is implausible ---**DO NOT** write **todo** comments.
- The message should follow the project's **commit message specifications**.
- Make a ticket.
- Version control (git) is a **development-tool**, not a **management-tool**.
- Provide a very brief description ---This may be used in the commit message's body.
2 - Make it work
- Write high-level tests that confirms the cycle's requirements are met.
- That is, specify requirements in a programming language instead of English.
- You're done when all the tests pass.
- Preferably write the tests first, but it's okay to start with the interface.
- Tests may not be necessary depending on the requirements and commit type.
- "Make it work" doesn't mean liberally producing shit code, you should:
- Follow project's **conventions**.
- Follow **best practices** and **proven swe principles**.
- Enable **warnings as errors**.
- Enable **static analysis**.
- Don't break any pre-existing-tests.
- Have the over-all picture in mind.
3 - Make it right
- Test driven refactoring
- Now you have a better picture of how things relate and work.
- Switch to a TDD-style development to do the refactoring while following swe best-practices and proven-principles.
4 - Make it fast
- This is an engine, at the end of the day, **performance** is king.
- Get a performance and/or memory profile and try to alleviate the bottlenecks.
- Avoid premature optimizations, be certain what you change has performance benefits.
Sprint
---------------------------------------------------------------------------------------------------
A sprint is the collection of all the finished cycles in one week.
It's meant to provide insight on development speed and help projecting the future.
Commit Message Specification
---------------------------------------------------------------------------------------------------
The project follows the `Conventional Commits Specification <https://www.conventionalcommits.org/en/v1.0.0-beta.4>`_.
.. code-block:: md
<type>[optional scope]: <description>
[optional body]
[optional footer]
With the following commit types:
- feat
- For adding a new feature.
- Causes a **minor** bump in version.
- fix
- For changes that fix one or more bug.
- Causes a **patch** bump in version.
- refactor
- For non feat/fix changes that improve the implementation and/or the interface.
- Causes a **patch** bump in version.
- perf
- For changes that (hopefully) improve the performance.
- Causes a **patch** bump in version.
- build
- For changes that affect the build system or external dependencies.
- Causes a **patch** bump in version.
- asset
- For changes to the files under the ``/data`` directory.
- Causes a **patch** bump in version.
- test
- For adding missing tests or correcting the existing tests.
- Does not affect the version.
- chore
- For releases, .gitignore changes, deleting unused files, etc.
- Does not affect the version.
- ci
- For changes to our CI configuration files and scripts, including files under ``/tools/ci``.
- Does not affect the version.
- docs
- For changes to the documentations.
- Does not affect the version.
Semantic Versioning
---------------------------------------------------------------------------------------------------
Coupled with conventional commit style messages, we can automajically version the project following
the **Semantic Versioning 2.0.0** specifications.
The full version identifier consits of a version core (major.minor.patch) + label + hexsha of the commit.
Using the following format:
.. code-block:: md
<major>.<minor>.<patch>-<label>+<short_hexsha>
eg.
0.8.1-kitten+ea898
0.5.0-kitten+01d85
1.5.0-akasha+7de53
kitten refers to all pre-release (1.0.0) versions
The shortened hexsha of a commit is obtained by:
``git rev-parse --short=5 <commit_hexsha>``