Allow duration strings as --since/--until

Fixes #13107. This change enables Go duration strings
computed relative to the client machine’s time to be used
as input parameters to `docker events --since/--until`
and `docker logs --since` arguments.

Added unit tests for pkg/timeutils.GetTimestamp as well.

Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
This commit is contained in:
Ahmet Alp Balkan 2015-05-12 19:59:34 +00:00
parent 527a1c4f7a
commit 5f7c584bb3
2 changed files with 20 additions and 5 deletions

View file

@ -6,10 +6,17 @@ import (
"time"
)
// GetTimestamp tries to parse given string as RFC3339 time
// or Unix timestamp (with seconds precision), if successful
//returns a Unix timestamp as string otherwise returns value back.
func GetTimestamp(value string) string {
// GetTimestamp tries to parse given string as golang duration,
// then RFC3339 time and finally as a Unix timestamp. If
// any of these were successful, it returns a Unix timestamp
// as string otherwise returns the given value back.
// In case of duration input, the returned timestamp is computed
// as the given reference time minus the amount of the duration.
func GetTimestamp(value string, reference time.Time) string {
if d, err := time.ParseDuration(value); value != "0" && err == nil {
return strconv.FormatInt(reference.Add(-d).Unix(), 10)
}
var format string
if strings.Contains(value, ".") {
format = time.RFC3339Nano

View file

@ -1,10 +1,13 @@
package timeutils
import (
"fmt"
"testing"
"time"
)
func TestGetTimestamp(t *testing.T) {
now := time.Now()
cases := []struct{ in, expected string }{
{"0", "-62167305600"}, // 0 gets parsed year 0
@ -23,12 +26,17 @@ func TestGetTimestamp(t *testing.T) {
// unix timestamps returned as is
{"1136073600", "1136073600"},
// Durations
{"1m", fmt.Sprintf("%d", now.Add(-1*time.Minute).Unix())},
{"1.5h", fmt.Sprintf("%d", now.Add(-90*time.Minute).Unix())},
{"1h30m", fmt.Sprintf("%d", now.Add(-90*time.Minute).Unix())},
// String fallback
{"invalid", "invalid"},
}
for _, c := range cases {
o := GetTimestamp(c.in)
o := GetTimestamp(c.in, now)
if o != c.expected {
t.Fatalf("wrong value for '%s'. expected:'%s' got:'%s'", c.in, c.expected, o)
}