rusty_v8/build.rs
2019-11-01 13:50:12 -04:00

95 lines
2.4 KiB
Rust

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use cargo_gn;
use std::env;
use std::path::Path;
use std::path::PathBuf;
use std::process::Command;
use which::which;
fn main() {
if !Path::new("third_party/v8/src").is_dir()
|| env::var_os("GCLIENT_SYNC").is_some()
{
gclient_sync();
}
let mut gn_args = if cargo_gn::is_debug() {
vec!["is_debug=true".to_string()]
} else {
vec!["is_debug=false".to_string()]
};
if let Some(p) = env::var_os("SCCACHE") {
cc_wrapper(&mut gn_args, &Path::new(&p));
} else if let Ok(p) = which("sccache") {
cc_wrapper(&mut gn_args, &p);
} else {
println!("cargo:warning=Not using sccache");
}
// gn_root needs to be an absolute path.
let gn_root = env::current_dir()
.unwrap()
.into_os_string()
.into_string()
.unwrap();
let gn_out = cargo_gn::maybe_gen(&gn_root, gn_args);
assert!(gn_out.exists());
assert!(gn_out.join("args.gn").exists());
cargo_gn::build("rusty_v8");
println!("cargo:rustc-link-lib=static=rusty_v8");
if cfg!(target_os = "windows") {
println!("cargo:rustc-link-lib=dylib=winmm");
}
}
fn git_submodule_update() {
Command::new("git")
.arg("submodule")
.arg("update")
.arg("--init")
.status()
.expect("git submodule update failed");
}
fn gclient_sync() {
let root = env::current_dir().unwrap();
let third_party = root.join("third_party");
let gclient_rel = PathBuf::from("depot_tools/gclient.py");
let gclient_file = third_party.join("gclient_config.py");
assert!(gclient_file.exists());
if !third_party.join(&gclient_rel).exists() {
git_submodule_update();
}
println!("Running gclient sync to download V8. This could take a while.");
let status = Command::new("python")
.current_dir(&third_party)
.arg(&gclient_rel)
.arg("sync")
.arg("--no-history")
.arg("--shallow")
.env("DEPOT_TOOLS_UPDATE", "0")
.env("DEPOT_TOOLS_METRICS", "0")
.env("GCLIENT_FILE", gclient_file)
.env("DEPOT_TOOLS_WIN_TOOLCHAIN", "0")
.status()
.expect("gclient sync failed");
assert!(status.success());
}
fn cc_wrapper(gn_args: &mut Vec<String>, sccache_path: &Path) {
gn_args.push(format!("cc_wrapper={:?}", sccache_path));
// Disable treat_warnings_as_errors until this sccache bug is fixed:
// https://github.com/mozilla/sccache/issues/264
if cfg!(target_os = "windows") {
gn_args.push("treat_warnings_as_errors=false".to_string());
}
}