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package events
import (
"strings"
"time"
"github.com/containers/podman/v2/pkg/util"
"github.com/pkg/errors"
)
func generateEventFilter(filter, filterValue string) (func(e *Event) bool, error) {
switch strings.ToUpper(filter) {
case "CONTAINER":
return func(e *Event) bool {
if e.Type != Container {
return false
}
if e.Name == filterValue {
return true
}
return strings.HasPrefix(e.ID, filterValue)
}, nil
case "EVENT", "STATUS":
return func(e *Event) bool {
return string(e.Status) == filterValue
}, nil
case "IMAGE":
return func(e *Event) bool {
if e.Type != Image {
return false
}
if e.Name == filterValue {
return true
}
return strings.HasPrefix(e.ID, filterValue)
}, nil
case "POD":
return func(e *Event) bool {
if e.Type != Pod {
return false
}
if e.Name == filterValue {
return true
}
return strings.HasPrefix(e.ID, filterValue)
}, nil
case "VOLUME":
return func(e *Event) bool {
if e.Type != Volume {
return false
}
return strings.HasPrefix(e.ID, filterValue)
}, nil
case "TYPE":
return func(e *Event) bool {
return string(e.Type) == filterValue
}, nil
}
return nil, errors.Errorf("%s is an invalid filter", filter)
}
func generateEventSinceOption(timeSince time.Time) func(e *Event) bool {
return func(e *Event) bool {
return e.Time.After(timeSince)
}
}
func generateEventUntilOption(timeUntil time.Time) func(e *Event) bool {
return func(e *Event) bool {
return e.Time.Before(timeUntil)
}
}
func parseFilter(filter string) (string, string, error) {
filterSplit := strings.SplitN(filter, "=", 2)
if len(filterSplit) == 1 {
return "", "", errors.Errorf("%s is an invalid filter", filter)
}
return filterSplit[0], filterSplit[1], nil
}
func generateEventOptions(filters []string, since, until string) ([]EventFilter, error) {
options := make([]EventFilter, 0, len(filters))
for _, filter := range filters {
key, val, err := parseFilter(filter)
if err != nil {
return nil, err
}
funcFilter, err := generateEventFilter(key, val)
if err != nil {
return nil, err
}
options = append(options, funcFilter)
}
if len(since) > 0 {
timeSince, err := util.ParseInputTime(since)
if err != nil {
return nil, errors.Wrapf(err, "unable to convert since time of %s", since)
}
options = append(options, generateEventSinceOption(timeSince))
}
if len(until) > 0 {
timeUntil, err := util.ParseInputTime(until)
if err != nil {
return nil, errors.Wrapf(err, "unable to convert until time of %s", until)
}
options = append(options, generateEventUntilOption(timeUntil))
}
return options, nil
}
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