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refactor(build): generate revision via build.rs
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parent
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commit
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4 changed files with 70 additions and 32 deletions
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@ -4,6 +4,7 @@ version = "0.0.1"
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authors = ["The Servo Project Developers"]
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license = "MPL-2.0"
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publish = false
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build = "build.rs"
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[lib]
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name = "compositing"
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@ -29,3 +30,6 @@ style_traits = {path = "../style_traits"}
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time = "0.1.17"
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webrender = {git = "https://github.com/servo/webrender", features = ["capture"]}
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webrender_api = {git = "https://github.com/servo/webrender", features = ["ipc"]}
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[build-dependencies]
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toml = "0.4.5"
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65
components/compositing/build.rs
Normal file
65
components/compositing/build.rs
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@ -0,0 +1,65 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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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 http://mozilla.org/MPL/2.0/. */
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extern crate toml;
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use std::env;
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use std::fs::File;
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use std::io::{Read, Write};
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const WEBRENDER_REVISION_TEMPLATE: &'static str =
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"/* This Source Code Form is subject to the terms of the Mozilla Public
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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 http://mozilla.org/MPL/2.0/. */
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/// auto-generated by cargo. do not manually modify.
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pub const REVISION: &'static str = ";
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fn main() {
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let current_path = env::current_dir().expect("Failed to access path to lockfile");
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let lockfile_path = current_path.join("..").join("..").join("Cargo.lock");
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let revision_file_path = current_path.join("webrender_revision.rs");
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let mut existing_revision_exported = String::new();
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match File::open(&revision_file_path) {
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Ok(mut f) => {
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f.read_to_string(&mut existing_revision_exported).unwrap_or_default();
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},
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Err(_) => ()
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}
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let mut lockfile = String::new();
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File::open(lockfile_path).expect("Cannot open lockfile")
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.read_to_string(&mut lockfile)
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.expect("Failed to read lockfile");
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match toml::from_str::<toml::value::Table>(&lockfile) {
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Ok(result) => {
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let packages = result.get("package").expect("Cargo lockfile should contain package list");
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match *packages {
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toml::Value::Array(ref arr) => {
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let source = arr
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.iter()
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.find(|pkg| pkg.get("name").and_then(|name| name.as_str()).unwrap_or("") == "webrender")
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.and_then(|pkg| pkg.get("source").and_then(|source| source.as_str()))
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.unwrap_or("unknown");
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let parsed: Vec<&str> = source.split("#").collect();
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let revision = if parsed.len() > 1 { parsed[1] } else { source };
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if let Some(_) = existing_revision_exported.find(revision) {
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return
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}
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let revision_contents = format!("{}\"{}\";", WEBRENDER_REVISION_TEMPLATE, revision);
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let mut revision_module_file = File::create(&revision_file_path).unwrap();
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write!(&mut revision_module_file, "{}", revision_contents).unwrap();
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},
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_ => panic!("Cannot find package definitions in lockfile")
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}
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},
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Err(e) => panic!(e)
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}
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}
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