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extern crate libc;
use std::fs::{OpenOptions, create_dir_all};
use std::os::unix::fs::OpenOptionsExt;
use std::io::ErrorKind;
use std::path::Path;
use std::process;
mod lib;
use lib::{Ktestrc, read_lines, ktestrc_read, git_get_commit};
extern crate multimap;
use multimap::MultiMap;
use die::die;
fn get_subtests(test_path: &str) -> Vec<String> {
let test_name = Path::new(test_path).file_stem();
if let Some(test_name) = test_name {
let test_name = test_name.to_string_lossy();
let output = std::process::Command::new(&test_path)
.arg("list-tests")
.output()
.expect(&format!("failed to execute process {:?} ", &test_path))
.stdout;
let output = String::from_utf8_lossy(&output);
output
.split_whitespace()
.map(|i| format!("{}.{}", test_name, i))
.collect()
} else {
Vec::new()
}
}
fn lockfile_exists(rc: &Ktestrc, commit: &str, subtest: &str, create: bool) -> bool {
fn test_or_create(lockfile: &Path, create: bool) -> bool {
if !create {
lockfile.exists()
} else {
let dir = lockfile.parent();
let r = create_dir_all(dir.unwrap());
if let Err(e) = r {
if e.kind() != ErrorKind::AlreadyExists {
die!("error creating {:?}: {}", dir, e);
}
}
let mut options = OpenOptions::new();
options.write(true);
options.custom_flags(libc::O_CREAT);
options.open(lockfile).is_ok()
}
}
let lockfile = rc.ci_output_dir.join(commit).join(subtest);
let mut exists = test_or_create(&lockfile, create);
if exists {
let timeout = std::time::Duration::new(3600, 0);
let now = std::time::SystemTime::now();
let metadata = std::fs::metadata(&lockfile).unwrap();
if metadata.len() == 0&&
metadata.is_file() &&
metadata.modified().unwrap() + timeout < now &&
std::fs::remove_file(&lockfile).is_ok() {
exists = test_or_create(&lockfile, create);
}
}
exists
}
struct TestJob {
branch: String,
commit: String,
age: usize,
test: String,
subtests: Vec<String>,
}
fn branch_get_next_test_job(rc: &Ktestrc, repo: &git2::Repository,
branch: &str, test_path: &str) -> Option<TestJob> {
let mut ret = TestJob {
branch: branch.to_string(),
commit: String::new(),
age: 0,
test: test_path.to_string(),
subtests: Vec::new(),
};
let subtests = get_subtests(test_path);
let mut walk = repo.revwalk().unwrap();
let reference = git_get_commit(&repo, branch.to_string());
if reference.is_err() {
eprintln!("branch {} not found", branch);
return None;
}
let reference = reference.unwrap();
if let Err(e) = walk.push(reference.id()) {
eprintln!("Error walking {}: {}", branch, e);
return None;
}
for commit in walk
.filter_map(|i| i.ok())
.filter_map(|i| repo.find_commit(i).ok()) {
let commit = commit.id().to_string();
ret.commit = commit.clone();
for subtest in subtests.iter() {
if !lockfile_exists(rc, &commit, subtest, false) {
ret.subtests.push(subtest.to_string());
if ret.subtests.len() > 20 {
break;
}
}
}
if !ret.subtests.is_empty() {
return Some(ret);
}
ret.age += 1;
}
None
}
fn get_best_test_job(rc: &Ktestrc, repo: &git2::Repository,
branch_tests: &MultiMap<String, String>) -> Option<TestJob> {
let mut ret: Option<TestJob> = None;
for (branch, testvec) in branch_tests.iter_all() {
for test in testvec {
let job = branch_get_next_test_job(rc, repo, branch, test);
if let Some(job) = job {
match &ret {
Some(r) => if r.age > job.age { ret = Some(job) },
None => ret = Some(job),
}
}
}
}
ret
}
fn create_job_lockfiles(rc: &Ktestrc, mut job: TestJob) -> Option<TestJob> {
job.subtests = job.subtests.iter()
.filter(|i| lockfile_exists(rc, &job.commit, &i, true))
.map(|i| i.to_string())
.collect();
if !job.subtests.is_empty() { Some(job) } else { None }
}
fn main() {
let ktestrc = ktestrc_read();
let repo = git2::Repository::open(&ktestrc.ci_linux_repo);
if let Err(e) = repo {
eprintln!("Error opening {:?}: {}", ktestrc.ci_linux_repo, e);
eprintln!("Please specify correct JOBSERVER_LINUX_DIR");
process::exit(1);
}
let repo = repo.unwrap();
let lines = read_lines(&ktestrc.ci_branches_to_test);
if let Err(e) = lines {
eprintln!("Error opening {:?}: {}", ktestrc.ci_branches_to_test, e);
eprintln!("Please specify correct JOBSERVER_BRANCHES_TO_TEST");
process::exit(1);
}
let lines = lines.unwrap();
let lines = lines.filter_map(|i| i.ok());
let mut branch_tests: MultiMap<String, String> = MultiMap::new();
for l in lines {
let l: Vec<_> = l.split_whitespace().take(2).collect();
if l.len() == 2 {
let branch = l[0];
let test = l[1];
branch_tests.insert(branch.to_string(), test.to_string());
}
}
let mut job: Option<TestJob>;
loop {
job = get_best_test_job(&ktestrc, &repo, &branch_tests);
if job.is_none() {
break;
}
job = create_job_lockfiles(&ktestrc, job.unwrap());
if job.is_some() {
break;
}
}
if let Some(job) = job {
print!("{} {} {}", job.branch, job.commit, job.test);
for t in job.subtests {
print!(" {}", t);
}
println!("");
}
}
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