x-core 0.1.0

// Copyright (c) The Diem Core Contributors
// SPDX-License-Identifier: Apache-2.0

use crate::{Result, SystemError, WorkspaceSubsets, XCoreContext};
use guppy::MetadataCommand;

rental! {
    mod rent_package_graph {
        use crate::WorkspaceSubsets;
        use guppy::graph::PackageGraph;

        #[rental(covariant)]
        pub(crate) struct PackageGraphPlus {
            g: Box<PackageGraph>,
            subsets: WorkspaceSubsets<'g>,
        }
    }
}

pub(crate) use rent_package_graph::PackageGraphPlus;

impl PackageGraphPlus {
    pub(crate) fn create(ctx: &XCoreContext) -> Result<Self> {
        let mut cmd = MetadataCommand::new();
        // Run cargo metadata from the root of the workspace.
        let project_root = ctx.project_root();
        cmd.current_dir(project_root);

        Self::try_new_or_drop(
            Box::new(
                cmd.build_graph()
                    .map_err(|err| SystemError::guppy("building package graph", err))?,
            ),
            move |graph| WorkspaceSubsets::new(graph, project_root, &ctx.config().subsets),
        )
    }
}