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4a968ad679
Because we no longer can tag geckodriver releases in mozilla-central, we need to include build information in the program itself. In the version information message displayed when passing the --version flag, we now include the current tip's SHA1 and build date following the version number. This patch could be made simpler by dumping this information correctly formatted into a text file in the output directory, but it was requested in https://bugzilla.mozilla.org/show_bug.cgi?id=1374977 to also include the version information in the log output, which means we need to access it differently and in different places. MozReview-Commit-ID: CbFQn7IV8ew --HG-- extra : rebase_source : dcc38ba7b5f209e9878755d5d75b611e22b5253d
74 lines
1.9 KiB
Rust
74 lines
1.9 KiB
Rust
/// Writes build information to ${OUT_DIR}/build-info.rs which is included in
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/// the program during compilation:
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///
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/// ```no_run
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/// const COMMIT_HASH: Option<&'static str> = Some("c31a366");
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/// const COMMIT_DATE: Option<&'static str> = Some("1988-05-10");
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/// ```
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///
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/// The values are `None` if running hg failed, e.g. if it is not installed or
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/// if we are not in an hg repo.
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use std::env;
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use std::ffi::OsStr;
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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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fn main() {
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let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
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let mut fh = File::create(out_dir.join("build-info.rs")).unwrap();
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writeln!(
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fh,
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"const COMMIT_HASH: Option<&'static str> = {:?};",
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commit_hash()
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).unwrap();
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writeln!(
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fh,
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"const COMMIT_DATE: Option<&'static str> = {:?};",
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commit_date()
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).unwrap();
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}
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fn commit_hash() -> Option<String> {
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exec(&"hg", &["log", "-r.", "-T '{node|short}'"]).or_else(
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|| {
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exec(&"git", &["rev-parse", "HEAD"]).and_then(hg2git_sha)
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},
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)
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}
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fn commit_date() -> Option<String> {
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exec(&"hg", &["log", "-r.", "-T '{date|isodate}'"]).or_else(|| {
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exec(
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&"git",
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&["log", "-1", "--date=short", "--pretty=format:%cd"],
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)
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})
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}
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fn exec<S, I>(program: S, args: I) -> Option<String>
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where
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S: AsRef<OsStr>,
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I: IntoIterator<Item = S>,
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{
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let mut cmd = Command::new(program);
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for arg in args {
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cmd.arg(arg.as_ref());
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}
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cmd.output()
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.ok()
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.and_then(|r| if r.status.success() {
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Some(r.stdout)
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} else {
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None
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})
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.and_then(|o| String::from_utf8(o).ok())
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.map(|s| s.trim_right().into())
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}
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fn hg2git_sha(hg_sha: String) -> Option<String> {
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exec(&"git", &["cinnabar", "git2hg", &hg_sha])
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}
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