github-readme-stats 0.1.0

Fetch GitHub user statistics as JSON
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use std::env;
use std::fs;
use std::path::Path;

fn main() {
    if let Err(err) = run() {
        panic!("build.rs failed: {err}");
    }
}

fn run() -> Result<(), Box<dyn std::error::Error>> {
    let out_dir = env::var("OUT_DIR")?;
    let dest_path = Path::new(&out_dir).join("queries.rs");

    let queries_dir = Path::new("src/api/queries");

    let user_query = fs::read_to_string(queries_dir.join("user.graphql"))
        .map_err(|e| format!("Failed to read user.graphql: {e}"))?;
    let repo_query = fs::read_to_string(queries_dir.join("repo.graphql"))
        .map_err(|e| format!("Failed to read repo.graphql: {e}"))?;

    // Use r##"..."## to allow r#"..."# inside the generated code
    let generated = format!(
        r##"/// GraphQL query for user profile and contributions (from user.graphql)
pub const USER_QUERY: &str = r#"{user_query}"#;

/// GraphQL query for repository stats with author filter (from repo.graphql)
pub const REPO_QUERY: &str = r#"{repo_query}"#;
"##,
        user_query = user_query.trim(),
        repo_query = repo_query.trim(),
    );

    fs::write(&dest_path, generated).map_err(|e| format!("Failed to write queries.rs: {e}"))?;

    // Rerun if query files change
    println!("cargo:rerun-if-changed=src/api/queries/user.graphql");
    println!("cargo:rerun-if-changed=src/api/queries/repo.graphql");

    Ok(())
}