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0ad02c6108
This fix tries to add a placeholder `.CreatedAt` for Go format template in `docker network ls --format`. While working on 29226, I noticed that it is not possible to display network's creation time in `docker network ls`, with or without `--format`. We are able to find the timestamp through `docker network inspect` though. However, as we allows networks to be pruned based on the timestamp (see 29226), showing the timestamp in `docker network ls --format` would be much useful now. This fix adds the `.CreatedAt` placeholder for `docker network ls --format`. The default output was not changed for `docker network ls --format`. A test case for unit tests has been added. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
122 lines
2.5 KiB
Go
122 lines
2.5 KiB
Go
package formatter
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import (
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"fmt"
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"strings"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/pkg/stringid"
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)
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const (
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defaultNetworkTableFormat = "table {{.ID}}\t{{.Name}}\t{{.Driver}}\t{{.Scope}}"
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networkIDHeader = "NETWORK ID"
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ipv6Header = "IPV6"
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internalHeader = "INTERNAL"
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)
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// NewNetworkFormat returns a Format for rendering using a network Context
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func NewNetworkFormat(source string, quiet bool) Format {
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switch source {
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case TableFormatKey:
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if quiet {
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return defaultQuietFormat
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}
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return defaultNetworkTableFormat
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case RawFormatKey:
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if quiet {
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return `network_id: {{.ID}}`
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}
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return `network_id: {{.ID}}\nname: {{.Name}}\ndriver: {{.Driver}}\nscope: {{.Scope}}\n`
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}
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return Format(source)
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}
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// NetworkWrite writes the context
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func NetworkWrite(ctx Context, networks []types.NetworkResource) error {
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render := func(format func(subContext subContext) error) error {
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for _, network := range networks {
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networkCtx := &networkContext{trunc: ctx.Trunc, n: network}
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if err := format(networkCtx); err != nil {
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return err
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}
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}
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return nil
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}
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return ctx.Write(&networkContext{}, render)
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}
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type networkContext struct {
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HeaderContext
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trunc bool
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n types.NetworkResource
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}
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func (c *networkContext) MarshalJSON() ([]byte, error) {
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return marshalJSON(c)
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}
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func (c *networkContext) ID() string {
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c.AddHeader(networkIDHeader)
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if c.trunc {
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return stringid.TruncateID(c.n.ID)
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}
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return c.n.ID
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}
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func (c *networkContext) Name() string {
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c.AddHeader(nameHeader)
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return c.n.Name
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}
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func (c *networkContext) Driver() string {
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c.AddHeader(driverHeader)
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return c.n.Driver
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}
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func (c *networkContext) Scope() string {
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c.AddHeader(scopeHeader)
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return c.n.Scope
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}
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func (c *networkContext) IPv6() string {
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c.AddHeader(ipv6Header)
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return fmt.Sprintf("%v", c.n.EnableIPv6)
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}
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func (c *networkContext) Internal() string {
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c.AddHeader(internalHeader)
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return fmt.Sprintf("%v", c.n.Internal)
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}
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func (c *networkContext) Labels() string {
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c.AddHeader(labelsHeader)
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if c.n.Labels == nil {
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return ""
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}
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var joinLabels []string
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for k, v := range c.n.Labels {
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joinLabels = append(joinLabels, fmt.Sprintf("%s=%s", k, v))
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}
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return strings.Join(joinLabels, ",")
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}
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func (c *networkContext) Label(name string) string {
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n := strings.Split(name, ".")
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r := strings.NewReplacer("-", " ", "_", " ")
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h := r.Replace(n[len(n)-1])
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c.AddHeader(h)
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if c.n.Labels == nil {
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return ""
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}
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return c.n.Labels[name]
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}
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func (c *networkContext) CreatedAt() string {
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c.AddHeader(createdAtHeader)
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return c.n.Created.String()
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}
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