From dc932f973593747697b98aa612a308df889741ab Mon Sep 17 00:00:00 2001 From: sptaule Date: Mon, 24 Jan 2022 20:58:36 +0100 Subject: Added doc book --- content/documentation/development/devenv.md | 145 +++++++++++++++ content/documentation/development/index.md | 14 ++ .../development/miscellaneous_notes.md | 98 +++++++++++ .../documentation/development/release_process.md | 195 +++++++++++++++++++++ content/documentation/development/scripts.md | 113 ++++++++++++ 5 files changed, 565 insertions(+) create mode 100644 content/documentation/development/devenv.md create mode 100644 content/documentation/development/index.md create mode 100644 content/documentation/development/miscellaneous_notes.md create mode 100644 content/documentation/development/release_process.md create mode 100644 content/documentation/development/scripts.md (limited to 'content/documentation/development') diff --git a/content/documentation/development/devenv.md b/content/documentation/development/devenv.md new file mode 100644 index 0000000..78affa4 --- /dev/null +++ b/content/documentation/development/devenv.md @@ -0,0 +1,145 @@ +# Setup your development environment + +Depending on your tastes, you can bootstrap your development environment in a traditional Rust way or through Nix. + +## The Nix way + +Nix is a generic package manager we use to precisely define our development environment. +Instructions on how to install it are given on their [Download page](https://nixos.org/download.html). + +Check that your installation is working by running the following commands: + +``` +nix-shell --version +nix-build --version +nix-env --version +``` + +Now, you can clone our git repository (run `nix-env -iA git` if you do not have git yet): + +```bash +git clone https://git.deuxfleurs.fr/Deuxfleurs/garage +cd garage +``` + +*Optionnaly, you can use our nix.conf file to speed up compilations:* + +```bash +sudo mkdir -p /etc/nix +sudo cp nix/nix.conf /etc/nix/nix.conf +sudo killall nix-daemon +``` + +Now you can enter our nix-shell, all the required packages will be downloaded but they will not pollute your environment outside of the shell: + +```bash +nix-shell +``` + +You can use the traditionnal Rust development workflow: + +```bash +cargo build # compile the project +cargo run # execute the project +cargo test # run the tests +cargo fmt # format the project, run it before any commit! +cargo clippy # run the linter, run it before any commit! +``` + +You can build the project with Nix by running: + +```bash +nix-build +``` + +You can parallelize the build (if you use our nix.conf file, it is already automatically done). +To use all your cores when building a derivation use `-j`, and to build multiple derivations at once use `--max-jobs`. +The special value `auto` will be replaced by the number of cores of your computer. +An example: + +```bash +nix-build -j $(nproc) --max-jobs auto +``` + +Our build has multiple parameters you might want to set: + - `release` build with release optimisations instead of debug + - `target allows` for cross compilation + - `compileMode` can be set to test or bench to build a unit test runner + - `git_version` to inject the hash to display when running `garage stats` + +An example: + +```bash +nix-build \ + --arg release true \ + --argstr target x86_64-unknown-linux-musl \ + --argstr compileMode build \ + --git_version $(git rev-parse HEAD) +``` + +*The result is located in `result/bin`. You can pass arguments to cross compile: check `.drone.yml` for examples.* + +If you modify a `Cargo.toml` or regenerate any `Cargo.lock`, you must run `cargo2nix`: + +``` +cargo2nix -f +``` + +Many tools like rclone, `mc` (minio-client), or `aws` (awscliv2) will be available in your environment and will be useful to test Garage. + +**This is the recommended method.** + +## The Rust way + +You need a Rust distribution installed on your computer. +The most simple way is to install it from [rustup](https://rustup.rs). +Please avoid using your package manager to install Rust as some tools might be outdated or missing. + +Now, check your Rust distribution works by running the following commands: + +```bash +rustc --version +cargo --version +rustfmt --version +clippy-driver --version +``` + +Now, you need to clone our git repository ([how to install git](https://git-scm.com/downloads)): + +```bash +git clone https://git.deuxfleurs.fr/Deuxfleurs/garage +cd garage +``` + +You can now use the following commands: + +```bash +cargo build # compile the project +cargo run # execute the project +cargo test # run the tests +cargo fmt # format the project, run it before any commit! +cargo clippy # run the linter, run it before any commit! +``` + +This is specific to our project, but you will need one last tool, `cargo2nix`. +To install it, run: + +```bash +cargo install --git https://github.com/superboum/cargo2nix --branch main cargo2nix +``` + +You must use it every time you modify a `Cargo.toml` or regenerate a `Cargo.lock` file as follow: + +```bash +cargo build # Rebuild Cargo.lock if needed +cargo2nix -f +``` + +It will output a `Cargo.nix` file which is a specific `Cargo.lock` file dedicated to Nix that is required by our CI +which means you must include it in your commits. + +Later, to use our scripts and integration tests, you might need additional tools. +These tools are listed at the end of the `shell.nix` package in the `nativeBuildInputs` part. +It is up to you to find a way to install the ones you need on your computer. + +**A global drawback of this method is that it is up to you to adapt your environment to the one defined in the Nix files.** diff --git a/content/documentation/development/index.md b/content/documentation/development/index.md new file mode 100644 index 0000000..09147ec --- /dev/null +++ b/content/documentation/development/index.md @@ -0,0 +1,14 @@ +# Development + +Now that you are a Garage expert, you want to enhance it, you are in the right place! +We discuss here how to hack on Garage, how we manage its development, etc. + +## Rust API (docs.rs) +If you encounter a specific bug in Garage or plan to patch it, you may jump directly to the source code's documentation! + + - [garage\_api](https://docs.rs/garage_api/latest/garage_api/) - contains the S3 standard API endpoint + - [garage\_model](https://docs.rs/garage_model/latest/garage_model/) - contains Garage's model built on the table abstraction + - [garage\_rpc](https://docs.rs/garage_rpc/latest/garage_rpc/) - contains Garage's federation protocol + - [garage\_table](https://docs.rs/garage_table/latest/garage_table/) - contains core Garage's CRDT datatypes + - [garage\_util](https://docs.rs/garage_util/latest/garage_util/) - contains garage helpers + - [garage\_web](https://docs.rs/garage_web/latest/garage_web/) - contains the S3 website endpoint diff --git a/content/documentation/development/miscellaneous_notes.md b/content/documentation/development/miscellaneous_notes.md new file mode 100644 index 0000000..1adc574 --- /dev/null +++ b/content/documentation/development/miscellaneous_notes.md @@ -0,0 +1,98 @@ +# Miscellaneous Notes + +## Quirks about cargo2nix/rust in Nix + +If you use submodules in your crate (like `crdt` and `replication` in `garage_table`), you must list them in `default.nix` + +The Windows target does not work. it might be solvable through [overrides](https://github.com/cargo2nix/cargo2nix/blob/master/overlay/overrides.nix). Indeed, we pass `x86_64-pc-windows-gnu` but mingw need `x86_64-w64-mingw32` + +We have a simple [PR on cargo2nix](https://github.com/cargo2nix/cargo2nix/pull/201) that fixes critical bugs but the project does not seem very active currently. We must use [my patched version of cargo2nix](https://github.com/superboum/cargo2nix) to enable i686 and armv6l compilation. We might need to contribute to cargo2nix in the future. + + +## Nix + +Nix has no armv7 + musl toolchains but armv7l is backward compatible with armv6l. + +```bash +cat > $HOME/.awsrc <