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switch from using eyre prototype to actual eyre (#1)
- add ci - update docs - set default lints - bump version for new release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| on: | ||
| push: | ||
| branches: | ||
| - master | ||
| pull_request: {} | ||
|
|
||
| name: Continuous integration | ||
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| jobs: | ||
| check: | ||
| name: Check | ||
| runs-on: ubuntu-latest | ||
| strategy: | ||
| matrix: | ||
| rust: | ||
| - stable | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: ${{ matrix.rust }} | ||
| override: true | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: check | ||
|
|
||
| test-features: | ||
| name: Test Suite | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: stable | ||
| override: true | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: test | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: test | ||
| args: --all-features | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: test | ||
| args: --no-default-features | ||
|
|
||
| test-versions: | ||
| name: Test Suite | ||
| runs-on: ubuntu-latest | ||
| strategy: | ||
| matrix: | ||
| rust: | ||
| - stable | ||
| - beta | ||
| - nightly | ||
| - 1.39.0 | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: ${{ matrix.rust }} | ||
| override: true | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: test | ||
|
|
||
| test-os: | ||
| name: Test Suite | ||
| runs-on: ${{ matrix.os }} | ||
| strategy: | ||
| matrix: | ||
| os: [ubuntu-latest, windows-latest, macOS-latest] | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: stable | ||
| override: true | ||
| profile: minimal | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: test | ||
|
|
||
| fmt: | ||
| name: Rustfmt | ||
| runs-on: ubuntu-latest | ||
| strategy: | ||
| matrix: | ||
| rust: | ||
| - stable | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: ${{ matrix.rust }} | ||
| override: true | ||
| - run: rustup component add rustfmt | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: fmt | ||
| args: --all -- --check | ||
|
|
||
| clippy: | ||
| name: Clippy | ||
| runs-on: ubuntu-latest | ||
| strategy: | ||
| matrix: | ||
| rust: | ||
| - stable | ||
| steps: | ||
| - uses: actions/checkout@v1 | ||
| - uses: actions-rs/toolchain@v1 | ||
| with: | ||
| toolchain: ${{ matrix.rust }} | ||
| override: true | ||
| - run: rustup component add clippy | ||
| - uses: actions-rs/cargo@v1 | ||
| with: | ||
| command: clippy | ||
| args: --all-targets --all-features -- -D warnings |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,82 +1,116 @@ | ||
| #![feature(backtrace)] | ||
| use eyre_impl::{ErrorReporter, Indented}; | ||
| use std::backtrace::{Backtrace, BacktraceStatus}; | ||
| use std::fmt::{self, Write as _}; | ||
|
|
||
| //! This library provides a custom [`eyre::EyreContext`] type for usage with [`eyre`] that provides | ||
| //! a minimal error report with no additional context. Essentially the minimal implementation of an | ||
| //! error reporter. | ||
| //! | ||
| //! # Example | ||
| //! | ||
| //! ```rust,should_panic | ||
| //! use eyre::{eyre, WrapErr}; | ||
| //! use simple_eyre::Report; | ||
| //! | ||
| //! fn main() -> Result<(), Report> { | ||
| //! let e: Report = eyre!("oh no this program is just bad!"); | ||
| //! | ||
| //! Err(e).wrap_err("usage example successfully experienced a failure") | ||
| //! } | ||
| //! ``` | ||
| //! | ||
| //! [`eyre::EyreContext`]: https://docs.rs/eyre/*/eyre/trait.EyreContext.html | ||
| //! [`eyre`]: https://docs.rs/eyre | ||
| #![doc(html_root_url = "https://docs.rs/simple-eyre/0.2.0")] | ||
| #![warn( | ||
| missing_debug_implementations, | ||
| missing_docs, | ||
| missing_doc_code_examples, | ||
| rust_2018_idioms, | ||
| unreachable_pub, | ||
| bad_style, | ||
| const_err, | ||
| dead_code, | ||
| improper_ctypes, | ||
| non_shorthand_field_patterns, | ||
| no_mangle_generic_items, | ||
| overflowing_literals, | ||
| path_statements, | ||
| patterns_in_fns_without_body, | ||
| private_in_public, | ||
| unconditional_recursion, | ||
| unused, | ||
| unused_allocation, | ||
| unused_comparisons, | ||
| unused_parens, | ||
| while_true | ||
| )] | ||
| use eyre::Chain; | ||
| use eyre::EyreContext; | ||
| use indenter::indented; | ||
| use std::error::Error; | ||
|
|
||
| /// A custom context type for minimal error reporting via `eyre` | ||
| #[derive(Debug)] | ||
| pub struct BoxError(Box<dyn std::error::Error + Send + Sync + 'static>); | ||
|
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| impl std::error::Error for BoxError { | ||
| fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { | ||
| self.0.source() | ||
| } | ||
| } | ||
|
|
||
| impl fmt::Display for BoxError { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| fmt::Display::fmt(&self.0, f) | ||
| } | ||
| } | ||
|
|
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| pub struct Context { | ||
| backtrace: Backtrace, | ||
| } | ||
|
|
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| impl Default for Context { | ||
| fn default() -> Self { | ||
| Self { | ||
| backtrace: Backtrace::capture(), | ||
| } | ||
| } | ||
| } | ||
|
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| pub struct ErrReport(ErrorReporter<BoxError, Context>); | ||
| pub struct Context; | ||
|
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| impl<E> From<E> for ErrReport | ||
| where | ||
| E: std::error::Error + Send + Sync + 'static, | ||
| { | ||
| fn from(err: E) -> Self { | ||
| ErrReport(ErrorReporter::from(BoxError(Box::new(err)))) | ||
| impl EyreContext for Context { | ||
| #[allow(unused_variables)] | ||
| fn default(error: &(dyn Error + 'static)) -> Self { | ||
| Self | ||
| } | ||
| } | ||
|
|
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| impl fmt::Debug for ErrReport { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| let error = &self.0.error; | ||
| fn debug( | ||
| &self, | ||
| error: &(dyn Error + 'static), | ||
| f: &mut core::fmt::Formatter<'_>, | ||
| ) -> core::fmt::Result { | ||
| use core::fmt::Write as _; | ||
|
|
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| if f.alternate() { | ||
| return fmt::Debug::fmt(error, f); | ||
| } | ||
|
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| let errors = self.0.chain().rev().enumerate(); | ||
|
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| writeln!(f)?; | ||
|
|
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| for (n, error) in errors { | ||
| write!(Indented::numbered(f, n), "{}", error)?; | ||
| writeln!(f)?; | ||
| } | ||
|
|
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| let backtrace = &self.0.context.backtrace; | ||
| if let BacktraceStatus::Captured = backtrace.status() { | ||
| write!(f, "\n\n{}", backtrace)?; | ||
| return core::fmt::Debug::fmt(error, f); | ||
| } | ||
|
|
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| Ok(()) | ||
| } | ||
| } | ||
|
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| impl fmt::Display for ErrReport { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| write!(f, "{}", self.0.error)?; | ||
|
|
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| if f.alternate() { | ||
| for cause in self.0.chain().skip(1) { | ||
| write!(f, ": {}", cause)?; | ||
| write!(f, "{}", error)?; | ||
|
|
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| if let Some(cause) = error.source() { | ||
| write!(f, "\n\nCaused by:")?; | ||
| let multiple = cause.source().is_some(); | ||
| for (n, error) in Chain::new(cause).enumerate() { | ||
| writeln!(f)?; | ||
| if multiple { | ||
| write!(indented(f).ind(n), "{}", error)?; | ||
| } else { | ||
| write!(indented(f), "{}", error)?; | ||
| } | ||
| } | ||
| } | ||
|
|
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| Ok(()) | ||
| } | ||
| } | ||
|
|
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| /// A type alias for `eyre::Report<simple_eyre::Context>` | ||
| /// | ||
| /// # Example | ||
| /// | ||
| /// ```rust | ||
| /// use simple_eyre::Report; | ||
| /// | ||
| /// # struct Config; | ||
| /// fn try_thing(path: &str) -> Result<Config, Report> { | ||
| /// // ... | ||
| /// # Ok(Config) | ||
| /// } | ||
| /// ``` | ||
| pub type Report = eyre::Report<Context>; | ||
|
|
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| /// A type alias for `Result<T, simple_eyre::Report>` | ||
| /// | ||
| /// # Example | ||
| /// | ||
| ///``` | ||
| /// fn main() -> simple_eyre::Result<()> { | ||
| /// | ||
| /// // ... | ||
| /// | ||
| /// Ok(()) | ||
| /// } | ||
| /// ``` | ||
| pub type Result<T, E = Report> = core::result::Result<T, E>; |