cargo_bazel/cli/
render.rs

1use crate::context::SingleBuildFileRenderContext;
2use crate::rendering::Renderer;
3
4use anyhow::{Context, Result};
5use clap::Parser;
6
7use std::path::PathBuf;
8use std::sync::Arc;
9
10#[derive(Parser, Debug)]
11#[clap(about = "Command line options for the `render` subcommand", version)]
12pub struct RenderOptions {
13    #[clap(long)]
14    options_json: String,
15
16    #[clap(long)]
17    output_path: PathBuf,
18}
19
20pub fn render(opt: RenderOptions) -> Result<()> {
21    let RenderOptions {
22        options_json,
23        output_path,
24    } = opt;
25
26    let deserialized_options = serde_json::from_str(&options_json)
27        .with_context(|| format!("Failed to deserialize options_json from '{}'", options_json))?;
28
29    let SingleBuildFileRenderContext {
30        config,
31        supported_platform_triples,
32        platform_conditions,
33        crate_context,
34    } = deserialized_options;
35
36    let renderer = Renderer::new(config, supported_platform_triples);
37    let platforms = renderer.render_platform_labels(Arc::clone(&platform_conditions));
38    let engine = renderer.create_engine(platform_conditions);
39    let output = renderer
40        .render_one_build_file(&engine, &platforms, &crate_context)
41        .with_context(|| {
42            format!(
43                "Failed to render BUILD.bazel file for crate {}",
44                crate_context.name
45            )
46        })?;
47    std::fs::write(&output_path, output.as_bytes()).with_context(|| {
48        format!(
49            "Failed to write BUILD.bazel file to {}",
50            output_path.display()
51        )
52    })?;
53
54    Ok(())
55}
cargo_bazel/cli/render.rs

cargo_bazel/cli/
render.rs
