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front.rs
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front.rs
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use std::collections::HashMap;
use std::sync::Arc;
use super::ChangeSet;
use crate::config::Project;
use crate::ext::fs;
use crate::ext::sync::{wait_interruptible, CommandResult};
use crate::service::site::SiteFile;
use crate::signal::{Interrupt, Outcome, Product};
use crate::{
ext::{
anyhow::{Context, Result},
exe::Exe,
},
logger::GRAY,
};
use camino::{Utf8Path, Utf8PathBuf};
use tokio::process::Child;
use tokio::{process::Command, sync::broadcast, task::JoinHandle};
use wasm_bindgen_cli_support::Bindgen;
pub async fn front(
proj: &Arc<Project>,
changes: &ChangeSet,
) -> JoinHandle<Result<Outcome<Product>>> {
let proj = proj.clone();
let changes = changes.clone();
tokio::spawn(async move {
if !changes.need_front_build() {
log::trace!("Front no changes to rebuild");
return Ok(Outcome::Success(Product::None));
}
fs::create_dir_all(&proj.site.root_relative_pkg_dir()).await?;
let (envs, line, process) = front_cargo_process("build", true, &proj)?;
log::debug!("Running {}", GRAY.paint(&line));
match wait_interruptible("Cargo", process, Interrupt::subscribe_any()).await? {
CommandResult::Interrupted => return Ok(Outcome::Stopped),
CommandResult::Failure(_) => return Ok(Outcome::Failed),
_ => {}
}
log::debug!("Cargo envs: {}", GRAY.paint(envs));
log::info!("Cargo finished {}", GRAY.paint(line));
bindgen(&proj).await.dot()
})
}
pub fn front_cargo_process(
cmd: &str,
wasm: bool,
proj: &Project,
) -> Result<(String, String, Child)> {
let mut command = Command::new("cargo");
let (envs, line) = build_cargo_front_cmd(cmd, wasm, proj, &mut command);
Ok((envs, line, command.spawn()?))
}
pub fn build_cargo_front_cmd(
cmd: &str,
wasm: bool,
proj: &Project,
command: &mut Command,
) -> (String, String) {
let mut args = vec![
cmd.to_string(),
format!("--package={}", proj.lib.name.as_str()),
"--lib".to_string(),
format!("--target-dir={}", &proj.lib.front_target_path),
];
if wasm {
args.push("--target=wasm32-unknown-unknown".to_string());
}
if !proj.lib.default_features {
args.push("--no-default-features".to_string());
}
if !proj.lib.features.is_empty() {
args.push(format!("--features={}", proj.lib.features.join(",")));
}
// Add cargo flags to cargo command
if let Some(cargo_args) = &proj.lib.cargo_args {
args.extend_from_slice(cargo_args);
}
proj.lib.profile.add_to_args(&mut args);
let envs = proj.to_envs();
let envs_str = envs
.iter()
.map(|(name, val)| format!("{name}={val}"))
.collect::<Vec<_>>()
.join(" ");
command.args(&args).envs(envs);
let line = super::build_cargo_command_string(args);
(envs_str, line)
}
async fn bindgen(proj: &Project) -> Result<Outcome<Product>> {
let wasm_file = &proj.lib.wasm_file;
let interrupt = Interrupt::subscribe_any();
log::info!("Front compiling WASM");
// see:
// https://github.com/rustwasm/wasm-bindgen/blob/main/crates/cli-support/src/lib.rs#L95
// https://github.com/rustwasm/wasm-bindgen/blob/main/crates/cli/src/bin/wasm-bindgen.rs#L13
let mut bindgen = Bindgen::new()
.debug(proj.wasm_debug)
.keep_debug(proj.wasm_debug)
.input_path(&wasm_file.source)
.web(true)
.dot()?
.generate_output()
.dot()?;
bindgen.wasm_mut().emit_wasm_file(&wasm_file.dest).dot()?;
log::trace!("Front wrote wasm to {:?}", wasm_file.dest.as_str());
if proj.release {
match optimize(&wasm_file.dest, interrupt).await.dot()? {
CommandResult::Interrupted => return Ok(Outcome::Stopped),
CommandResult::Failure(_) => return Ok(Outcome::Failed),
_ => {}
}
}
let mut js_changed = false;
js_changed |= write_snippets(proj, bindgen.snippets()).await?;
js_changed |= write_modules(proj, bindgen.local_modules()).await?;
let wasm_changed = proj
.site
.did_file_change(&proj.lib.wasm_file.as_site_file())
.await
.dot()?;
js_changed |= proj
.site
.updated_with(&proj.lib.js_file, bindgen.js().as_bytes())
.await
.dot()?;
log::debug!("Front js changed: {js_changed}");
log::debug!("Front wasm changed: {wasm_changed}");
if js_changed || wasm_changed {
Ok(Outcome::Success(Product::Front))
} else {
Ok(Outcome::Success(Product::None))
}
}
async fn optimize(
file: &Utf8Path,
interrupt: broadcast::Receiver<()>,
) -> Result<CommandResult<()>> {
let wasm_opt = Exe::WasmOpt.get().await.dot()?;
let args = [file.as_str(), "-Os", "-o", file.as_str()];
let process = Command::new(wasm_opt)
.args(args)
.spawn()
.context("Could not spawn command")?;
wait_interruptible("wasm-opt", process, interrupt).await
}
async fn write_snippets(proj: &Project, snippets: &HashMap<String, Vec<String>>) -> Result<bool> {
let mut js_changed = false;
// Provide inline JS files
for (identifier, list) in snippets.iter() {
for (i, js) in list.iter().enumerate() {
let name = format!("inline{}.js", i);
let site_path = Utf8PathBuf::from("snippets").join(identifier).join(name);
let file_path = proj.site.root_relative_pkg_dir().join(&site_path);
fs::create_dir_all(file_path.parent().unwrap()).await?;
let site_file = SiteFile {
dest: file_path,
site: site_path,
};
js_changed |= proj.site.updated_with(&site_file, js.as_bytes()).await?;
}
}
Ok(js_changed)
}
async fn write_modules(proj: &Project, modules: &HashMap<String, String>) -> Result<bool> {
let mut js_changed = false;
// Provide snippet files from JS snippets
for (path, js) in modules.iter() {
let site_path = Utf8PathBuf::from("snippets").join(path);
let file_path = proj.site.root_relative_pkg_dir().join(&site_path);
fs::create_dir_all(file_path.parent().unwrap()).await?;
let site_file = SiteFile {
dest: file_path,
site: site_path,
};
js_changed |= proj.site.updated_with(&site_file, js.as_bytes()).await?;
}
Ok(js_changed)
}