Content material of the fabric
To get began writing a Flake8 plugin you first want:
An thought for a plugin
An out there bundle title on PyPI
A number of variations of Python put in
A textual content editor or IDE of some sort
An thought of what sort of plugin you wish to construct:
When you’ve gathered this stuff, you may get began.
All plugins for Flake8 should be registered by way of entry points. On this part we cowl:
Easy methods to register your plugin so Flake8 can discover it
Easy methods to make Flake8 present your examine plugin with info (by way of command-line flags, operate/class parameters, and so forth.)
Easy methods to make a formatter plugin
Easy methods to write your examine plugin in order that it really works with Flake8 2.x and three.x
What are Nix flakes?
Flakes are self-contained models which have inputs (dependencies) and outputs (packages, deployment directions, Nix features to be used in different flakes). You possibly can take into consideration them as Rust crates or Go modules however language-independent. Flakes have nice reproducibility as a result of they’re solely allowed to depend upon their inputs and so they pin the precise variations of mentioned inputs in a lockfile.
When you’re already acquainted with Nix, flakes are to Nix expressions what derivations are to construct directions.
Optionally available: nix-direnv .envrc
With the intention to hook into
git add .envrc.
Earlier than we do a full correct construct, we have to populate the
Cargo.lock! (Skip this you probably have one!)
When you didn’t decide to make use of
nix-direnv, now it is advisable to name
nix develop . to enter the total growth shell.
At this level you may check out
cargo construct and different related instructions. They need to work and use the libraries and instruments offered by Nix.
Go forward and check a construct:
Get hassle? Attempt operating
nix construct --print-build-logs --keep-failed to have the ability to see logs and examine the workdir.
Here is it working:
So how does this do on different crates? I check these recordsdata to a number of different common Rust packages, here is what I wanted to vary for every:
I needed to set
mainProgram inside the
I additionally needed to set
btm. I additionally needed to set
doCheck = true in
default.nix, because the checks relied on floating atmosphere variables the construct did not have.