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package lpfilters
import (
"strconv"
"strings"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/util"
"github.com/pkg/errors"
)
// GeneratePodFilterFunc takes a filter and filtervalue (key, value)
// and generates a libpod function that can be used to filter
// pods
func GeneratePodFilterFunc(filter, filterValue string) (
func(pod *libpod.Pod) bool, error) {
switch filter {
case "ctr-ids":
return func(p *libpod.Pod) bool {
ctrIds, err := p.AllContainersByID()
if err != nil {
return false
}
return util.StringInSlice(filterValue, ctrIds)
}, nil
case "ctr-names":
return func(p *libpod.Pod) bool {
ctrs, err := p.AllContainers()
if err != nil {
return false
}
for _, ctr := range ctrs {
if filterValue == ctr.Name() {
return true
}
}
return false
}, nil
case "ctr-number":
return func(p *libpod.Pod) bool {
ctrIds, err := p.AllContainersByID()
if err != nil {
return false
}
fVint, err2 := strconv.Atoi(filterValue)
if err2 != nil {
return false
}
return len(ctrIds) == fVint
}, nil
case "ctr-status":
if !util.StringInSlice(filterValue,
[]string{"created", "restarting", "running", "paused",
"exited", "unknown"}) {
return nil, errors.Errorf("%s is not a valid status", filterValue)
}
return func(p *libpod.Pod) bool {
ctr_statuses, err := p.Status()
if err != nil {
return false
}
for _, ctr_status := range ctr_statuses {
state := ctr_status.String()
if ctr_status == define.ContainerStateConfigured {
state = "created"
}
if state == filterValue {
return true
}
}
return false
}, nil
case "id":
return func(p *libpod.Pod) bool {
return strings.Contains(p.ID(), filterValue)
}, nil
case "name":
return func(p *libpod.Pod) bool {
return strings.Contains(p.Name(), filterValue)
}, nil
case "status":
if !util.StringInSlice(filterValue, []string{"stopped", "running", "paused", "exited", "dead", "created"}) {
return nil, errors.Errorf("%s is not a valid pod status", filterValue)
}
return func(p *libpod.Pod) bool {
status, err := p.GetPodStatus()
if err != nil {
return false
}
if strings.ToLower(status) == filterValue {
return true
}
return false
}, nil
case "label":
var filterArray = strings.SplitN(filterValue, "=", 2)
var filterKey = filterArray[0]
if len(filterArray) > 1 {
filterValue = filterArray[1]
} else {
filterValue = ""
}
return func(p *libpod.Pod) bool {
for labelKey, labelValue := range p.Labels() {
if labelKey == filterKey && ("" == filterValue || labelValue == filterValue) {
return true
}
}
return false
}, nil
}
return nil, errors.Errorf("%s is an invalid filter", filter)
}
|
