DockerCLI/command/formatter/volume.go

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package formatter
import (
"bytes"
"fmt"
"strings"
"github.com/docker/docker/api/types"
)
const (
defaultVolumeQuietFormat = "{{.Name}}"
defaultVolumeTableFormat = "table {{.Driver}}\t{{.Name}}"
mountpointHeader = "MOUNTPOINT"
// Status header ?
)
// VolumeContext contains volume specific information required by the formatter,
// encapsulate a Context struct.
type VolumeContext struct {
Context
// Volumes
Volumes []*types.Volume
}
func (ctx VolumeContext) Write() {
switch ctx.Format {
case tableFormatKey:
if ctx.Quiet {
ctx.Format = defaultVolumeQuietFormat
} else {
ctx.Format = defaultVolumeTableFormat
}
case rawFormatKey:
if ctx.Quiet {
ctx.Format = `name: {{.Name}}`
} else {
ctx.Format = `name: {{.Name}}\ndriver: {{.Driver}}\n`
}
}
ctx.buffer = bytes.NewBufferString("")
ctx.preformat()
tmpl, err := ctx.parseFormat()
if err != nil {
return
}
for _, volume := range ctx.Volumes {
volumeCtx := &volumeContext{
v: volume,
}
err = ctx.contextFormat(tmpl, volumeCtx)
if err != nil {
return
}
}
ctx.postformat(tmpl, &networkContext{})
}
type volumeContext struct {
baseSubContext
v *types.Volume
}
func (c *volumeContext) Name() string {
c.addHeader(nameHeader)
return c.v.Name
}
func (c *volumeContext) Driver() string {
c.addHeader(driverHeader)
return c.v.Driver
}
func (c *volumeContext) Scope() string {
c.addHeader(scopeHeader)
return c.v.Scope
}
func (c *volumeContext) Mountpoint() string {
c.addHeader(mountpointHeader)
return c.v.Mountpoint
}
func (c *volumeContext) Labels() string {
c.addHeader(labelsHeader)
if c.v.Labels == nil {
return ""
}
var joinLabels []string
for k, v := range c.v.Labels {
joinLabels = append(joinLabels, fmt.Sprintf("%s=%s", k, v))
}
return strings.Join(joinLabels, ",")
}
func (c *volumeContext) Label(name string) string {
n := strings.Split(name, ".")
r := strings.NewReplacer("-", " ", "_", " ")
h := r.Replace(n[len(n)-1])
c.addHeader(h)
if c.v.Labels == nil {
return ""
}
return c.v.Labels[name]
}