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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#[macro_use]
extern crate lazy_static;
use std::env;
use std::path::Path;
use std::process::{exit, Command};
use walkdir::WalkDir;
#[cfg(feature = "gecko")]
mod build_gecko;
#[cfg(not(feature = "gecko"))]
mod build_gecko {
pub fn generate() {}
}
lazy_static! {
pub static ref PYTHON: String = env::var("PYTHON3").ok().unwrap_or_else(|| {
let candidates = if cfg!(windows) {
["python3.exe"]
} else {
["python3"]
};
for &name in &candidates {
if Command::new(name)
.arg("--version")
.output()
.ok()
.map_or(false, |out| out.status.success())
{
return name.to_owned();
}
}
panic!(
"Can't find python (tried {})! Try fixing PATH or setting the PYTHON3 env var",
candidates.join(", ")
)
});
}
fn generate_properties(engine: &str) {
for entry in WalkDir::new("properties") {
let entry = entry.unwrap();
match entry.path().extension().and_then(|e| e.to_str()) {
Some("mako") | Some("rs") | Some("py") | Some("zip") => {
println!("cargo:rerun-if-changed={}", entry.path().display());
},
_ => {},
}
}
let script = Path::new(&env::var_os("CARGO_MANIFEST_DIR").unwrap())
.join("properties")
.join("build.py");
let status = Command::new(&*PYTHON)
.arg(&script)
.arg(engine)
.arg("style-crate")
.status()
.unwrap();
if !status.success() {
exit(1)
}
}
fn main() {
let gecko = cfg!(feature = "gecko");
let servo = cfg!(feature = "servo");
let l2013 = cfg!(feature = "servo-layout-2013");
let l2020 = cfg!(feature = "servo-layout-2020");
let engine = match (gecko, servo, l2013, l2020) {
(true, false, false, false) => "gecko",
(false, true, true, false) => "servo-2013",
(false, true, false, true) => "servo-2020",
_ => panic!(
"\n\n\
The style crate requires enabling one of its 'servo' or 'gecko' feature flags \
and, in the 'servo' case, one of 'servo-layout-2013' or 'servo-layout-2020'.\
\n\n"
),
};
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:out_dir={}", env::var("OUT_DIR").unwrap());
generate_properties(engine);
build_gecko::generate();
}
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