caddy/vendor/github.com/xenolf/lego/acme/utils.go
Matthew Holt 6fde3632ef
Vendor all dependencies (Warning: Huge changeset.)
The vendor/ folder was created with the help of @FiloSottile's gvt and
vendorcheck.

Any dependencies of Caddy plugins outside this repo are not vendored.

We do not remove any unused, vendored packages because vendorcheck -u
only checks using the current build configuration; i.e. packages that
may be imported by files toggled by build tags of other systems.

CI tests have been updated to ignore the vendor/ folder. When Go 1.9 is
released, a few of the go commands should be revised to again use ./...
as it will ignore the vendor folder by default.
2017-05-27 13:30:11 -06:00

30 lines
496 B
Go

package acme
import (
"fmt"
"time"
)
// WaitFor polls the given function 'f', once every 'interval', up to 'timeout'.
func WaitFor(timeout, interval time.Duration, f func() (bool, error)) error {
var lastErr string
timeup := time.After(timeout)
for {
select {
case <-timeup:
return fmt.Errorf("Time limit exceeded. Last error: %s", lastErr)
default:
}
stop, err := f()
if stop {
return nil
}
if err != nil {
lastErr = err.Error()
}
time.Sleep(interval)
}
}