/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at
http://mozilla.org/MPL/2.0/. */
//! Helpers for data returned by cargo_metadata. Note that this doesn't
//! execute cargo_metadata, just parses its output.
use anyhow::{bail, Context};
use camino::Utf8PathBuf;
use cargo_metadata::Metadata;
use std::{collections::HashMap, fs};
use crate::BindgenCrateConfigSupplier;
#[derive(Debug, Clone, Default)]
pub struct CrateConfigSupplier {
paths: HashMap<String, Utf8PathBuf>,
}
impl BindgenCrateConfigSupplier for CrateConfigSupplier {
fn get_toml(&self, crate_name: &str) -> anyhow::Result<Option<toml::value::Table>> {
let toml = self.paths.get(crate_name).map(|p| p.join("uniffi.toml"));
crate::load_toml_file(toml.as_deref())
}
fn get_udl(&self, crate_name: &str, udl_name: &str) -> anyhow::Result<String> {
let path = self
.paths
.get(crate_name)
.context(format!("No path known to UDL files for '{crate_name}'"))?
.join("src")
.join(format!("{udl_name}.udl"));
if path.exists() {
Ok(fs::read_to_string(path)?)
} else {
bail!(format!("No UDL file found at '{path}'"));
}
}
}
impl From<Metadata> for CrateConfigSupplier {
fn from(metadata: Metadata) -> Self {
let paths: HashMap<String, Utf8PathBuf> = metadata
.packages
.iter()
.flat_map(|p| {
p.targets
.iter()
.filter(|t| {
!t.is_bin()
&& !t.is_example()
&& !t.is_test()
&& !t.is_bench()
&& !t.is_custom_build()
})
.filter_map(|t| {
p.manifest_path
.parent()
.map(|p| (t.name.replace('-', "_"), p.to_owned()))
})
})
.collect();
Self { paths }
}
}
