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package parse
import (
"strconv"
"strings"
"github.com/containers/podman/v3/libpod"
"github.com/containers/podman/v3/libpod/define"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// Handle volume options from CLI.
// Parse "o" option to find UID, GID.
func VolumeOptions(opts map[string]string) ([]libpod.VolumeCreateOption, error) {
libpodOptions := []libpod.VolumeCreateOption{}
volumeOptions := make(map[string]string)
for key, value := range opts {
switch key {
case "o":
// o has special handling to parse out UID, GID.
// These are separate Libpod options.
splitVal := strings.Split(value, ",")
finalVal := []string{}
for _, o := range splitVal {
// Options will be formatted as either "opt" or
// "opt=value"
splitO := strings.SplitN(o, "=", 2)
switch strings.ToLower(splitO[0]) {
case "uid":
if len(splitO) != 2 {
return nil, errors.Wrapf(define.ErrInvalidArg, "uid option must provide a UID")
}
intUID, err := strconv.Atoi(splitO[1])
if err != nil {
return nil, errors.Wrapf(err, "cannot convert UID %s to integer", splitO[1])
}
logrus.Debugf("Removing uid= from options and adding WithVolumeUID for UID %d", intUID)
libpodOptions = append(libpodOptions, libpod.WithVolumeUID(intUID), libpod.WithVolumeNoChown())
finalVal = append(finalVal, o)
// set option "UID": "$uid"
volumeOptions["UID"] = splitO[1]
case "gid":
if len(splitO) != 2 {
return nil, errors.Wrapf(define.ErrInvalidArg, "gid option must provide a GID")
}
intGID, err := strconv.Atoi(splitO[1])
if err != nil {
return nil, errors.Wrapf(err, "cannot convert GID %s to integer", splitO[1])
}
logrus.Debugf("Removing gid= from options and adding WithVolumeGID for GID %d", intGID)
libpodOptions = append(libpodOptions, libpod.WithVolumeGID(intGID), libpod.WithVolumeNoChown())
finalVal = append(finalVal, o)
// set option "GID": "$gid"
volumeOptions["GID"] = splitO[1]
default:
finalVal = append(finalVal, o)
}
}
if len(finalVal) > 0 {
volumeOptions[key] = strings.Join(finalVal, ",")
}
default:
volumeOptions[key] = value
}
}
if len(volumeOptions) > 0 {
libpodOptions = append(libpodOptions, libpod.WithVolumeOptions(volumeOptions))
}
return libpodOptions, nil
}
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