Commit 7e93c20b authored by Sebastian Dröge's avatar Sebastian Dröge 🍵

version-helper: Extract release version for plugins from a release.txt if...

version-helper: Extract release version for plugins from a release.txt if there is no git repository

This will allow us packaging the plugins in a tarball and generate
proper plugin metadata.
parent 924b89a8
......@@ -5,5 +5,6 @@ authors = ["Sajeer Ahamed <>"]
edition = "2018"
git2 = "0.9.0"
git2 = "0.9"
chrono = "0.4.6"
toml = "0.5"
use chrono::TimeZone;
use git2::{Commit, ObjectType, Repository};
use std::path;
use std::{fs, path};
pub fn get_info() {
let mut commit_id = "UNKNOWN".to_string();
let mut commit_id = "UNKNOWN".into();
let mut commit_date = chrono::Utc::now().format("%Y-%m-%d").to_string();
let mut repo_dir = path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
let crate_dir = path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
let mut repo_dir = crate_dir.clone();
let mut release_file = crate_dir.clone();
let repo = Repository::open(&repo_dir);
// If there is a git repository, extract the version information from there.
// Otherwise use a 'release.txt' file as fallback, or report the current
// date and an unknown revision.
if let Ok(repo) = repo {
let commit = find_last_commit(&repo).expect("Couldn't find last commit");
commit_id = oid_to_short_sha(;
let timestamp = commit.time().seconds();
let dt = chrono::Utc.timestamp(timestamp, 0);
commit_date = dt.format("%Y-%m-%d").to_string()
} else if let Ok(release_file) = fs::File::open(release_file) {
let mut cargo_toml = crate_dir.clone();
let cargo_toml = fs::File::open(cargo_toml).expect("Can't open Cargo.toml");
commit_date = read_release_date(cargo_toml, release_file);
commit_id = "RELEASE".into();
println!("cargo:rustc-env=COMMIT_ID={}", commit_id);
......@@ -32,3 +46,40 @@ fn find_last_commit(repo: &Repository) -> Result<Commit, git2::Error> {
fn oid_to_short_sha(oid: git2::Oid) -> String {
fn read_release_date(mut cargo_toml: fs::File, mut release_file: fs::File) -> String {
use std::io::Read;
let mut content = String::new();
.read_to_string(&mut content)
.expect("Failed to read version file");
let mut lines = content.lines();
let version ="Failed to read version number");
let date ="Failed to read release date");
let mut cargo_toml_content = String::new();
.read_to_string(&mut cargo_toml_content)
.expect("Failed to read `Cargo.toml`");
let cargo_toml = cargo_toml_content
.expect("Failed to parse `Cargo.toml`");
let package = cargo_toml["package"]
.expect("Failed to find 'package' section in `Cargo.toml`");
let cargo_version = package["version"]
.expect("Failed to read version from `Cargo.toml`");
if cargo_version != version {
"Version from 'version.txt' `{}` different from 'Cargo.toml' `{}`",
version, cargo_version
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