mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-09-24 13:00:12 +00:00
7e93c20b38
This will allow us packaging the plugins in a tarball and generate proper plugin metadata.
85 lines
2.9 KiB
Rust
85 lines
2.9 KiB
Rust
use chrono::TimeZone;
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use git2::{Commit, ObjectType, Repository};
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use std::{fs, path};
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pub fn get_info() {
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let mut commit_id = "UNKNOWN".into();
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let mut commit_date = chrono::Utc::now().format("%Y-%m-%d").to_string();
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let crate_dir = path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
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let mut repo_dir = crate_dir.clone();
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repo_dir.pop();
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let mut release_file = crate_dir.clone();
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release_file.push("release.txt");
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let repo = Repository::open(&repo_dir);
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// If there is a git repository, extract the version information from there.
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// Otherwise use a 'release.txt' file as fallback, or report the current
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// date and an unknown revision.
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if let Ok(repo) = repo {
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let commit = find_last_commit(&repo).expect("Couldn't find last commit");
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commit_id = oid_to_short_sha(commit.id());
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let timestamp = commit.time().seconds();
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let dt = chrono::Utc.timestamp(timestamp, 0);
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commit_date = dt.format("%Y-%m-%d").to_string()
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} else if let Ok(release_file) = fs::File::open(release_file) {
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let mut cargo_toml = crate_dir.clone();
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cargo_toml.push("Cargo.toml");
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let cargo_toml = fs::File::open(cargo_toml).expect("Can't open Cargo.toml");
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commit_date = read_release_date(cargo_toml, release_file);
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commit_id = "RELEASE".into();
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}
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println!("cargo:rustc-env=COMMIT_ID={}", commit_id);
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println!("cargo:rustc-env=BUILD_REL_DATE={}", commit_date);
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}
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fn find_last_commit(repo: &Repository) -> Result<Commit, git2::Error> {
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let obj = repo.head()?.resolve()?.peel(ObjectType::Commit)?;
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obj.into_commit()
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.map_err(|_| git2::Error::from_str("Couldn't find commit"))
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}
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fn oid_to_short_sha(oid: git2::Oid) -> String {
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oid.to_string()[..8].to_string()
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}
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fn read_release_date(mut cargo_toml: fs::File, mut release_file: fs::File) -> String {
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use std::io::Read;
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let mut content = String::new();
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release_file
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.read_to_string(&mut content)
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.expect("Failed to read version file");
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let mut lines = content.lines();
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let version = lines.next().expect("Failed to read version number");
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let date = lines.next().expect("Failed to read release date");
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let mut cargo_toml_content = String::new();
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cargo_toml
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.read_to_string(&mut cargo_toml_content)
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.expect("Failed to read `Cargo.toml`");
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let cargo_toml = cargo_toml_content
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.parse::<toml::Value>()
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.expect("Failed to parse `Cargo.toml`");
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let package = cargo_toml["package"]
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.as_table()
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.expect("Failed to find 'package' section in `Cargo.toml`");
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let cargo_version = package["version"]
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.as_str()
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.expect("Failed to read version from `Cargo.toml`");
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if cargo_version != version {
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panic!(
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"Version from 'version.txt' `{}` different from 'Cargo.toml' `{}`",
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version, cargo_version
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);
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}
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date.into()
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}
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