func runChecks(config *checks.Config, change scm.Change, modes []checks.Mode, prereqReady *sync.WaitGroup) error {
enabledChecks, options := config.EnabledChecks(modes)
log.Printf("mode: %s; %d checks; %d max seconds allowed", modes, len(enabledChecks), options.MaxDuration)
if change == nil {
log.Printf("no change")
return nil
}
var wg sync.WaitGroup
errs := make(chan error, len(enabledChecks))
warnings := make(chan error, len(enabledChecks))
start := time.Now()
for _, c := range enabledChecks {
wg.Add(1)
go func(check checks.Check) {
defer wg.Done()
if len(check.GetPrerequisites()) != 0 {
// If this check has prerequisites, wait for all prerequisites to be
// checked for presence.
prereqReady.Wait()
}
log.Printf("%s...", check.GetName())
duration, err := callRun(check, change, options)
if err != nil {
log.Printf("... %s in %1.2fs FAILED\n%s", check.GetName(), duration.Seconds(), err)
errs <- err
return
}
log.Printf("... %s in %1.2fs", check.GetName(), duration.Seconds())
// A check that took too long is a check that failed.
max := time.Duration(options.MaxDuration) * time.Second
if duration > max {
warnings <- fmt.Errorf("check %s took %1.2fs -> IT IS TOO SLOW (limit: %s)", check.GetName(), duration.Seconds(), max)
}
}(c)
}
wg.Wait()
var err error
for {
select {
case err = <-errs:
fmt.Printf("%s\n", err)
case warning := <-warnings:
fmt.Printf("warning: %s\n", warning)
default:
if err != nil {
duration := time.Now().Sub(start)
return fmt.Errorf("checks failed in %1.2fs", duration.Seconds())
}
return err
}
}
}
// cmdInstallPrereq installs all the packages needed to run the enabled checks.
func cmdInstallPrereq(repo scm.ReadOnlyRepo, config *checks.Config, modes []checks.Mode, noUpdate bool) error {
var wg sync.WaitGroup
enabledChecks, _ := config.EnabledChecks(modes)
number := 0
c := make(chan string, len(enabledChecks))
for _, check := range enabledChecks {
for _, p := range check.GetPrerequisites() {
number++
wg.Add(1)
go func(prereq checks.CheckPrerequisite) {
defer wg.Done()
if !prereq.IsPresent() {
c <- prereq.URL
}
}(p)
}
}
wg.Wait()
log.Printf("Checked for %d prerequisites", number)
loop := true
// Use a map to remove duplicates.
m := map[string]bool{}
for loop {
select {
case url := <-c:
m[url] = true
default:
loop = false
}
}
urls := make([]string, 0, len(m))
for url := range m {
urls = append(urls, url)
}
wd, err := os.Getwd()
if err != nil {
return err
}
sort.Strings(urls)
if len(urls) != 0 {
if noUpdate {
out := "-n is specified but prerequites are missing:\n"
for _, url := range urls {
out += " " + url + "\n"
}
return errors.New(out)
}
fmt.Printf("Installing:\n")
for _, url := range urls {
fmt.Printf(" %s\n", url)
}
out, _, err := internal.Capture(wd, nil, append([]string{"go", "get"}, urls...)...)
if len(out) != 0 {
return fmt.Errorf("prerequisites installation failed: %s", out)
}
if err != nil {
return fmt.Errorf("prerequisites installation failed: %s", err)
}
}
log.Printf("Prerequisites installation succeeded")
return nil
}