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https://github.com/servo/servo
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ee72fca571
We are probably not anywhere close to reproducible builds, but we should try to follow best practices where trivially possible. See also: https://reproducible-builds.org/docs/source-date-epoch/ Firefox devtools expects the build_id to be provided in a datetime specific format. This PR also switches the time to UTC instead of `Local`, since there seems to be no clear reason to use Local, and SOURCE_DATE_EPOCH is UTC. Testing: No functional changes, the devtools build_id is not covered by any tests. Fixes: #44458 --------- Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
34 lines
1.4 KiB
Rust
34 lines
1.4 KiB
Rust
/* 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 https://mozilla.org/MPL/2.0/. */
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use std::path::Path;
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use std::{env, fs};
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use chrono::{TimeZone, Utc};
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fn main() {
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println!("cargo:rerun-if-env-changed=SOURCE_DATE_EPOCH");
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// Parsing as suggested on <https://reproducible-builds.org/docs/source-date-epoch/>
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let now = match env::var("SOURCE_DATE_EPOCH") {
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Ok(val) => Utc
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.timestamp_opt(
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val.parse::<i64>()
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.expect("SOURCE_DATE_EPOCH should be a valid integer"),
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0,
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)
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.unwrap(),
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Err(_) => Utc::now(),
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};
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let build_id = now.format("%Y%m%d%H%M%S").to_string();
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let path = Path::new(&env::var_os("OUT_DIR").unwrap()).join("build_id.rs");
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// The build ID is used in Firefox devtools, `getDateFromBuildID` function:
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// <https://searchfox.org/firefox-main/rev/be31b3948198286e39a9855e414823cb17b6e94c/devtools/client/shared/remote-debugging/version-checker.js#21-24>
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// The expected format is: yyyyMMddHHmmss.
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// The date is than later used to check devtools compatibility:
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// <https://searchfox.org/firefox-main/rev/be31b3948198286e39a9855e414823cb17b6e94c/devtools/client/shared/remote-debugging/version-checker.js#133-139>
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fs::write(path, format!("const BUILD_ID: &str = \"{build_id}\";")).unwrap();
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}
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