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Similar fix to #932: it's broken when publishing a crate
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# ![Abscissa][logo] | ||
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[![Crate][crate-image]][crate-link] | ||
[![Docs][docs-image]][docs-link] | ||
[![Apache 2.0 Licensed][license-image]][license-link] | ||
![MSRV][rustc-image] | ||
[![Safety Dance][safety-image]][safety-link] | ||
[![Build Status][build-image]][build-link] | ||
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Abscissa is a microframework for building Rust applications (either CLI tools | ||
or network/web services), aiming to provide a large number of features with a | ||
*minimal number of dependencies*, and with a *strong focus on security*. | ||
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[Documentation][docs-link] | ||
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## Features | ||
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- **command-line option parsing**: simple declarative option parser based on | ||
[clap]. The option parser in Abcissa contains numerous improvements which | ||
provide better UX and tighter integration with the other parts of the | ||
framework (e.g. overriding configuration settings using command-line options). | ||
- **components**: Abscissa uses a component architecture (similar to an ECS) | ||
for extensibility/composability, with a minimalist implementation that still | ||
provides such features such as calculating dependency ordering and providing | ||
hooks into the application lifecycle. Newly generated apps use two components | ||
by default: `terminal` and `logging`. | ||
- **configuration**: Simple parsing of TOML configurations to `serde`-parsed | ||
configuration types which can be dynamically updated at runtime. | ||
- **error handling**: unified error-handling subsystem with generic error type. | ||
- **logging**: based on the `log` to provide application-level logging. | ||
- **secrets management**: the (optional) `secrets` module includes a `Secret` | ||
type which derives serde's `Deserialize` and can be used to represent secret | ||
values parsed from configuration files or elsewhere (e.g. credentials loaded | ||
from the environment or network requests) | ||
- **terminal interactions**: support for colored terminal output (with color | ||
support autodetection). Useful for Cargo-like status messages with | ||
easy-to-use macros. | ||
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## Projects Using Abscissa | ||
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- [Canister]: deployment utility for "distroless" containers/microVMs | ||
- [cargo-audit]: audit Cargo projects for security vulnerabilities | ||
- [cosmon]: observability tool for Tendermint applications | ||
- [ibc-rs]: Rust implementation of Interblockchain Communication (IBC) modules and relayer | ||
- [rustic]: fast, encrypted, and deduplicated backups | ||
- [Synchronicity]: distributed build system providing BFT proofs-of-reproducibility | ||
- [Tendermint KMS]: key management system for Tendermint applications | ||
- [Zebra]: Rust implementation of a Zcash node | ||
- [Zerostash]: Encrypted and deduplicated backups | ||
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## Crate Structure | ||
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Abscissa presently consists of three crates: | ||
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- [abscissa]: CLI app and application generator - `cargo install abscissa` | ||
- [abscissa_core]: main framework library | ||
- [abscissa_derive]: custom derive support - implementation detail of `abscissa_core` | ||
- [abscissa_tokio]: support for launching Tokio runtimes within Abscissa applications | ||
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## Minimum Supported Rust Version | ||
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Requires Rust **1.74** or newer. | ||
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## Installation | ||
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To generate a new Abscissa application, install the `abscissa` CLI utility: | ||
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```text | ||
$ cargo install abscissa | ||
``` | ||
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## Creating a new Abscissa application | ||
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The following commands will generate an Abscissa application skeleton: | ||
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```text | ||
$ cargo install abscissa | ||
$ abscissa new my_cool_app | ||
``` | ||
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The resulting app is a Cargo project. The following files are particularly | ||
noteworthy: | ||
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- `src/application.rs`: Abscissa application type for your app | ||
- `src/commands*`: application entrypoint and subcommands. Make sure to | ||
check out the `start.rs` example of how to make a subcommand. | ||
- `src/config.rs`: application configuration | ||
- `src/error.rs`: error types | ||
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Abscissa applications are implemented as Rust libraries, but have a | ||
`src/bin` subdirectory where the binary entrypoint lives. This means you | ||
can run the following within your newly generated application: | ||
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```text | ||
$ cargo run -- start world | ||
``` | ||
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This will invoke the `start` subcommand of your application (you | ||
might want to rename that in your app) which will print the following: | ||
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```text | ||
Hello, world! | ||
``` | ||
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You can also run the following to print basic help information: | ||
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```text | ||
$ cargo run -- --help | ||
``` | ||
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## Status Macros | ||
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```text | ||
// Print a Cargo-like justified status to STDOUT | ||
status_ok!("Loaded", "app loaded successfully"); | ||
// Print an error message | ||
status_err!("something bad happened"); | ||
// Print an indented attribute to STDOUT | ||
status_attr_ok!("good", "yep"); | ||
// Print an error attribute to STDERR | ||
status_attr_err!("error", "yep"); | ||
``` | ||
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## Frequently Asked Questions (FAQ) | ||
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#### Q1: Why is it called "abscissa"? | ||
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**A1:** The word "abscissa" is the key to the [Kryptos K2] panel. | ||
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#### Q2: "Abscissa" is a hard name to remember! Got any tips? | ||
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**A2**: Imagine you're A-B testing a couple of scissors... with attitude. | ||
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## Testing Framework Changes | ||
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The main way to test framework changes is by generating an application with | ||
Abscissa's built-in application generator and running tests against the | ||
generated application (also rustfmt, clippy). | ||
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To generate a test application and test it automatically, you can simply do: | ||
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```text | ||
$ cargo test | ||
``` | ||
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However, when debugging test failures against a generated app, it's helpful to | ||
know how to drive the app generation and testing process manually. Below are | ||
instructions on how to do so. | ||
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If you've already run: | ||
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```text | ||
$ git clone https://github.com/iqlusioninc/abscissa/ | ||
``` | ||
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...and are inside the `abscissa` directory and want to test your changes, | ||
you can generate an application by running the following command: | ||
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```text | ||
$ cargo run -- new /tmp/example_app --patch-crates-io='abscissa = { path = "$PWD" }' | ||
``` | ||
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This will generate a new Abscissa application in `/tmp/example_app` which | ||
references your local copy of Abscissa. | ||
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After that, change directory to the newly generated app and run the tests | ||
to ensure things are still working (the tests, along with rustfmt and clippy | ||
are run as part of the CI process): | ||
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```text | ||
$ cd /tmp/example_app # or 'pushd /tmp/example_app' and 'popd' to return | ||
$ cargo test | ||
$ cargo fmt -- --check # generated app is expected to pass rustfmt | ||
$ cargo clippy | ||
``` | ||
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## Code of Conduct | ||
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We abide by the [Contributor Covenant][cc] and ask that you do as well. | ||
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For more information, please see [CODE_OF_CONDUCT.md]. | ||
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## License | ||
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The **abscissa** crate is distributed under the terms of the | ||
Apache License (Version 2.0). | ||
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Copyright © 2018-2024 iqlusion | ||
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Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
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<https://www.apache.org/licenses/LICENSE-2.0> | ||
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Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
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## Contribution | ||
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If you are interested in contributing to this repository, please make sure to | ||
read the [CONTRIBUTING.md] and [CODE_OF_CONDUCT.md] files first. | ||
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[//]: # (badges) | ||
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[logo]: https://raw.githubusercontent.com/iqlusioninc/abscissa/main/img/abscissa.svg | ||
[crate-image]: https://img.shields.io/crates/v/abscissa_core.svg?logo=rust | ||
[crate-link]: https://crates.io/crates/abscissa_core | ||
[docs-image]: https://docs.rs/abscissa_core/badge.svg | ||
[docs-link]: https://docs.rs/abscissa_core/ | ||
[license-image]: https://img.shields.io/badge/license-Apache2.0-blue.svg | ||
[license-link]: https://github.com/iqlusioninc/abscissa/blob/main/LICENSE | ||
[rustc-image]: https://img.shields.io/badge/rustc-1.74+-blue.svg | ||
[safety-image]: https://img.shields.io/badge/unsafe-forbidden-success.svg | ||
[safety-link]: https://github.com/rust-secure-code/safety-dance/ | ||
[build-image]: https://github.com/iqlusioninc/abscissa/workflows/cli/badge.svg?branch=main&event=push | ||
[build-link]: https://github.com/iqlusioninc/abscissa/actions | ||
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[//]: # (crate links) | ||
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[abscissa]: https://crates.io/crates/abscissa | ||
[abscissa_core]: https://crates.io/crates/abscissa_core | ||
[abscissa_derive]: https://crates.io/crates/abscissa_derive | ||
[abscissa_tokio]: https://crates.io/crates/abscissa_tokio | ||
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[//]: # (general links) | ||
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[cargo]: https://github.com/rust-lang/cargo | ||
[cargo features]: https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section | ||
[Kryptos K2]: https://en.wikipedia.org/wiki/Kryptos#Solution_of_passage_2 | ||
[cc]: https://contributor-covenant.org | ||
[CODE_OF_CONDUCT.md]: https://github.com/iqlusioninc/abscissa/blob/main/CODE_OF_CONDUCT.md | ||
[CONTRIBUTING.md]: https://github.com/iqlusioninc/abscissa/blob/main/CONTRIBUTING.md | ||
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[//]: # (projects using abscissa) | ||
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[Tendermint KMS]: https://github.com/iqlusioninc/tmkms | ||
[Canister]: https://github.com/iqlusioninc/canister | ||
[cargo-audit]: https://github.com/rustsec/cargo-audit | ||
[cosmon]: https://github.com/iqlusioninc/cosmon | ||
[ibc-rs]: https://github.com/informalsystems/ibc-rs | ||
[rustic]: https://github.com/rustic-rs/rustic | ||
[Synchronicity]: https://github.com/iqlusioninc/synchronicity | ||
[Zebra]: https://github.com/ZcashFoundation/zebra | ||
[Zerostash]: https://github.com/rsdy/zerostash |
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