MeiliSearch/meilisearch-http/build.rs
2021-05-31 16:03:39 +02:00

90 lines
2.9 KiB
Rust

use vergen::{generate_cargo_keys, ConstantsFlags};
fn main() {
// Setup the flags, toggling off the 'SEMVER_FROM_CARGO_PKG' flag
let mut flags = ConstantsFlags::all();
flags.toggle(ConstantsFlags::SEMVER_FROM_CARGO_PKG);
// Generate the 'cargo:' key output
generate_cargo_keys(ConstantsFlags::all()).expect("Unable to generate the cargo keys!");
#[cfg(feature = "mini-dashboard")]
mini_dashboard::setup_mini_dashboard().expect("Could not load the mini-dashboard assets");
}
#[cfg(feature = "mini-dashboard")]
mod mini_dashboard {
use std::env;
use std::fs::{create_dir_all, File, OpenOptions};
use std::io::{Cursor, Read, Write};
use std::path::PathBuf;
use actix_web_static_files::resource_dir;
use anyhow::Context;
use cargo_toml::Manifest;
use reqwest::blocking::get;
use sha1::{Digest, Sha1};
pub fn setup_mini_dashboard() -> anyhow::Result<()> {
let cargo_manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
let cargo_toml = cargo_manifest_dir.join("Cargo.toml");
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
let sha1_path = out_dir.join(".mini-dashboard.sha1");
let dashboard_dir = out_dir.join("mini-dashboard");
let manifest = Manifest::from_path(cargo_toml).unwrap();
let meta = &manifest
.package
.as_ref()
.context("package not specified in Cargo.toml")?
.metadata
.as_ref()
.context("no metadata specified in Cargo.toml")?["mini-dashboard"];
// Check if there already is a dashboard built, and if it is up to date.
if sha1_path.exists() && dashboard_dir.exists() {
let mut sha1_file = File::open(&sha1_path)?;
let mut sha1 = String::new();
sha1_file.read_to_string(&mut sha1)?;
if sha1 == meta["sha1"].as_str().unwrap() {
// Nothing to do.
return Ok(());
}
}
let url = meta["assets-url"].as_str().unwrap();
let dashboard_assets_bytes = get(url)?.bytes()?;
let mut hasher = Sha1::new();
hasher.update(&dashboard_assets_bytes);
let sha1 = hex::encode(hasher.finalize());
assert_eq!(
meta["sha1"].as_str().unwrap(),
sha1,
"Downloaded mini-dashboard shasum differs from the one specified in the Cargo.toml"
);
create_dir_all(&dashboard_dir)?;
let cursor = Cursor::new(&dashboard_assets_bytes);
let mut zip = zip::read::ZipArchive::new(cursor)?;
zip.extract(&dashboard_dir)?;
resource_dir(&dashboard_dir).build()?;
// Write the sha1 for the dashboard back to file.
let mut file = OpenOptions::new()
.write(true)
.create(true)
.truncate(true)
.open(sha1_path)?;
file.write_all(sha1.as_bytes())?;
file.flush()?;
Ok(())
}
}