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script: Move code generation and webidl files to new script_bindings crate. (#35157)
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This commit is contained in:
parent
a88b59534f
commit
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469 changed files with 187 additions and 137 deletions
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@ -2,121 +2,11 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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use std::process::Command;
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use std::time::Instant;
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use std::{env, fmt};
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use phf_shared::{self, FmtConst};
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use serde_json::{self, Value};
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use std::env;
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fn main() {
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let start = Instant::now();
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let style_out_dir = PathBuf::from(env::var_os("DEP_SERVO_STYLE_CRATE_OUT_DIR").unwrap());
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let css_properties_json = style_out_dir.join("css-properties.json");
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let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
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println!("cargo::rerun-if-changed=dom/webidls");
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println!("cargo::rerun-if-changed=dom/bindings/codegen");
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println!("cargo::rerun-if-changed={}", css_properties_json.display());
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println!("cargo::rerun-if-changed=../../third_party/WebIDL/WebIDL.py");
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// NB: We aren't handling changes in `third_party/ply` here.
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let status = Command::new(find_python())
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.arg("dom/bindings/codegen/run.py")
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.arg(&css_properties_json)
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.arg(&out_dir)
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.status()
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.unwrap();
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if !status.success() {
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std::process::exit(1)
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}
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println!("Binding generation completed in {:?}", start.elapsed());
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let json = out_dir.join("InterfaceObjectMapData.json");
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let json: Value = serde_json::from_reader(File::open(json).unwrap()).unwrap();
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let mut map = phf_codegen::Map::new();
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for (key, value) in json.as_object().unwrap() {
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map.entry(Bytes(key), value.as_str().unwrap());
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}
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let phf = PathBuf::from(env::var_os("OUT_DIR").unwrap()).join("InterfaceObjectMapPhf.rs");
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let mut phf = File::create(phf).unwrap();
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writeln!(
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&mut phf,
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"pub(crate) static MAP: phf::Map<&'static [u8], fn(JSContext, HandleObject)> = {};",
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map.build(),
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)
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.unwrap();
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}
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#[derive(Eq, Hash, PartialEq)]
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struct Bytes<'a>(&'a str);
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impl FmtConst for Bytes<'_> {
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fn fmt_const(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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write!(formatter, "b\"{}\"", self.0)
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}
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}
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impl phf_shared::PhfHash for Bytes<'_> {
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fn phf_hash<H: std::hash::Hasher>(&self, hasher: &mut H) {
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self.0.as_bytes().phf_hash(hasher)
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}
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}
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/// Tries to find a suitable python
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///
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/// Algorithm
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/// 1. Trying to find python3/python in $VIRTUAL_ENV (this should be from Servo's venv)
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/// 2. Checking PYTHON3 (set by mach)
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/// 3. Falling back to the system installation.
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///
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/// Note: This function should be kept in sync with the version in `components/servo/build.rs`
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fn find_python() -> PathBuf {
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let mut candidates = vec![];
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if let Some(venv) = env::var_os("VIRTUAL_ENV") {
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let bin_directory = PathBuf::from(venv).join("bin");
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let python3 = bin_directory.join("python3");
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if python3.exists() {
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candidates.push(python3);
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}
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let python = bin_directory.join("python");
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if python.exists() {
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candidates.push(python);
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}
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};
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if let Some(python3) = env::var_os("PYTHON3") {
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let python3 = PathBuf::from(python3);
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if python3.exists() {
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candidates.push(python3);
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}
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}
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let system_python = ["python3", "python"].map(PathBuf::from);
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candidates.extend_from_slice(&system_python);
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for name in &candidates {
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// Command::new() allows us to omit the `.exe` suffix on windows
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if Command::new(name)
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.arg("--version")
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.output()
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.is_ok_and(|out| out.status.success())
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{
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return name.to_owned();
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}
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}
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let candidates = candidates
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.into_iter()
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.map(|c| c.into_os_string())
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.collect::<Vec<_>>();
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panic!(
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"Can't find python (tried {:?})! Try enabling Servo's Python venv, \
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setting the PYTHON3 env var or adding python3 to PATH.",
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candidates.join(", ".as_ref())
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)
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println!(
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"cargo:rustc-env=BINDINGS_OUT_DIR={}",
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env::var("DEP_SCRIPT_BINDINGS_CRATE_OUT_DIR").unwrap(),
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);
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}
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