servo/components/style/build.rs
Patrick Walton 5d8b213201 layout: Outline the individual property cascading functions to reduce
I-cache footprint.

Reduces the size of `properties::cascade` from over 100K of code to
under 5K. Due to the improved I-cache utilization, improves ARM scaling
on 4 cores by 15%.
2015-07-06 12:42:31 -07:00

35 lines
1.3 KiB
Rust

/* 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 http://mozilla.org/MPL/2.0/. */
use std::env;
use std::fs::File;
use std::io::Write;
use std::process::{Command, Stdio};
use std::path::Path;
fn main() {
let python = if Command::new("python2.7").arg("--version").status().unwrap().success() {
"python2.7"
} else {
"python"
};
let style = Path::new(file!()).parent().unwrap();
let mako = style.join("Mako-0.9.1.zip");
let template = style.join("properties.mako.rs");
let result = Command::new(python)
.env("PYTHONPATH", &mako)
.env("TEMPLATE", &template)
.arg("-c")
.arg("from os import environ; from mako.template import Template; \
from mako import exceptions; \n\
try:\n print(Template(filename=environ['TEMPLATE']).render());\n\
except:\n print exceptions.html_error_template().render()")
.stderr(Stdio::inherit())
.output()
.unwrap();
assert!(result.status.success());
let out = env::var("OUT_DIR").unwrap();
File::create(&Path::new(&out).join("properties.rs")).unwrap().write_all(&result.stdout).unwrap();
}