build.rs


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use std::{io, process::Command};

fn main() -> Result<(), io::Error> {
    // trigger recompilation when a new migration is added
    println!("cargo::rerun-if-changed=migrations");

    // rerun npm install whenever packages or npm config are changed
    println!("cargo::rerun-if-changed=.npmrc");
    println!("cargo::rerun-if-changed=package.json");
    // `node_modules` and `package-lock.json` are always touched if `npm install`
    // runs, leading to spurious rebuilds.
    //
    // See: <https://github.com/npm/cli/issues/7874>
    // println!("cargo::rerun-if-changed=package-lock.json");
    // println!("cargo::rerun-if-changed=node_modules");
    let status = Command::new("npm").args(["install"]).status()?;
    if !status.success() {
        return Err(io::Error::other(format!(
            "'npm install' exited with status {status:?}"
        )));
    }

    // rerun `npm run build` whenever the UI changes.
    //
    // `node_modules` is always touched if `npm install` runs, leading to spurious
    // rebuilds. (This duplicate is purely organizational; it reflects that the ui
    // depends on node_modules.)
    //
    // See: <https://github.com/npm/cli/issues/7874>
    // println!("cargo::rerun-if-changed=node_modules");
    println!("cargo::rerun-if-changed=postcss.config.js");
    println!("cargo::rerun-if-changed=svelte.config.js");
    println!("cargo::rerun-if-changed=vite.config.js");
    println!("cargo::rerun-if-changed=ui");
    let status = Command::new("npm").args(["run", "build"]).status()?;
    if !status.success() {
        return Err(io::Error::other(format!(
            "'npm run build' exited with status {status:?}"
        )));
    }

    Ok(())
}