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Use a custom PubGrub error type to always show resolution report (#365)

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Closes https://github.com/astral-sh/puffin/issues/356.

The example from the issue now renders as:

```
❯ cargo run --bin puffin-dev -q -- resolve-cli tensorflow-cpu-aws
puffin-dev failed
  Caused by: No solution found when resolving build dependencies for source distribution:
  Caused by: Because there is no available version for tensorflow-cpu-aws and root depends on tensorflow-cpu-aws, version solving failed.
```
This commit is contained in:
Charlie Marsh 2023-11-08 06:57:26 -08:00 • committed by GitHub
parent 4eed03d8e7
commit 4fe583257e
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 38 additions and 12 deletions
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13
crates/puffin-cli/src/commands/pip_compile.rs
View file

@ -7,7 +7,7 @@ use anyhow::{anyhow, Result};
use colored::Colorize;
use fs_err::File;
use itertools::Itertools;
use pubgrub::report::Reporter;
use tracing::debug;
use pep508_rs::Requirement;
@ -17,7 +17,7 @@ use puffin_client::RegistryClientBuilder;
use puffin_dispatch::BuildDispatch;
use puffin_interpreter::Virtualenv;
use puffin_normalize::ExtraName;
use puffin_resolver::{Manifest, PreReleaseMode, ResolutionFailureReporter, ResolutionMode};
use puffin_resolver::{Manifest, PreReleaseMode, ResolutionMode};
use std::str::FromStr;
use crate::commands::reporters::ResolverReporter;
@ -149,14 +149,11 @@ pub(crate) async fn pip_compile(
)
.with_reporter(ResolverReporter::from(printer));
let resolution = match resolver.resolve().await {
Err(puffin_resolver::ResolveError::PubGrub(pubgrub::error::PubGrubError::NoSolution(
derivation_tree,
))) => {
Err(puffin_resolver::ResolveError::PubGrub(err)) => {
#[allow(clippy::print_stderr)]
{
let report =
miette::Report::msg(ResolutionFailureReporter::report(&derivation_tree))
.context("No solution found when resolving dependencies:");
let report = miette::Report::msg(format!("{err}"))
.context("No solution found when resolving dependencies:");
eprint!("{report:?}");
}
return Ok(ExitStatus::Failure);