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// Copyright (c) The nextest Contributors
// SPDX-License-Identifier: MIT OR Apache-2.0
//! Standalone expression parser
//!
//! Useful for manually testing the parsing result
use camino::Utf8PathBuf;
use clap::Parser;
use guppy::graph::PackageGraph;
use nextest_filtering::errors::FiltersetParseErrors;
#[derive(Debug, Parser)]
struct Args {
/// Path to a cargo metadata json file
#[clap(short = 'g')]
cargo_metadata: Option<Utf8PathBuf>,
/// The expression to parse
expr: String,
}
const EMPTY_GRAPH: &str = r#"{
"packages": [],
"workspace_members": [],
"workspace_root": "",
"target_directory": "",
"version": 1
}"#;
fn load_graph(path: Option<Utf8PathBuf>) -> PackageGraph {
let json = match path {
Some(path) => match std::fs::read_to_string(path) {
Ok(json) => json,
Err(err) => {
eprintln!("Failed to read cargo-metadata file: {err}");
std::process::exit(1);
}
},
None => EMPTY_GRAPH.to_string(),
};
match PackageGraph::from_json(json) {
Ok(graph) => graph,
Err(err) => {
eprintln!("Failed to parse cargo-metadata: {err}");
std::process::exit(1);
}
}
}
fn main() {
let args = Args::parse();
let graph = load_graph(args.cargo_metadata);
let cx = nextest_filtering::ParseContext::new(&graph);
match nextest_filtering::Filterset::parse(
args.expr,
&cx,
nextest_filtering::FiltersetKind::Test,
) {
Ok(expr) => println!("{expr:?}"),
Err(FiltersetParseErrors { input, errors, .. }) => {
for error in errors {
let report = miette::Report::new(error).with_source_code(input.clone());
eprintln!("{report:?}");
}
std::process::exit(1);
}
}
}
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