mirror of https://github.com/docker/cli.git
478 lines
11 KiB
Go
478 lines
11 KiB
Go
package formatter
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import (
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"bytes"
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"fmt"
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"strconv"
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"strings"
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"text/template"
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"github.com/distribution/reference"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/api/types/image"
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"github.com/docker/docker/api/types/volume"
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units "github.com/docker/go-units"
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)
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const (
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defaultDiskUsageImageTableFormat = "table {{.Repository}}\t{{.Tag}}\t{{.ID}}\t{{.CreatedSince}}\t{{.Size}}\t{{.SharedSize}}\t{{.UniqueSize}}\t{{.Containers}}"
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defaultDiskUsageContainerTableFormat = "table {{.ID}}\t{{.Image}}\t{{.Command}}\t{{.LocalVolumes}}\t{{.Size}}\t{{.RunningFor}}\t{{.Status}}\t{{.Names}}"
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defaultDiskUsageVolumeTableFormat = "table {{.Name}}\t{{.Links}}\t{{.Size}}"
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defaultDiskUsageBuildCacheTableFormat = "table {{.ID}}\t{{.CacheType}}\t{{.Size}}\t{{.CreatedSince}}\t{{.LastUsedSince}}\t{{.UsageCount}}\t{{.Shared}}"
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defaultDiskUsageTableFormat = "table {{.Type}}\t{{.TotalCount}}\t{{.Active}}\t{{.Size}}\t{{.Reclaimable}}"
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typeHeader = "TYPE"
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totalHeader = "TOTAL"
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activeHeader = "ACTIVE"
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reclaimableHeader = "RECLAIMABLE"
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containersHeader = "CONTAINERS"
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sharedSizeHeader = "SHARED SIZE"
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uniqueSizeHeader = "UNIQUE SIZE"
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)
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// DiskUsageContext contains disk usage specific information required by the formatter, encapsulate a Context struct.
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type DiskUsageContext struct {
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Context
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Verbose bool
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LayersSize int64
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Images []*image.Summary
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Containers []*container.Summary
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Volumes []*volume.Volume
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BuildCache []*types.BuildCache
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BuilderSize int64
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}
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func (ctx *DiskUsageContext) startSubsection(format string) (*template.Template, error) {
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ctx.buffer = bytes.NewBufferString("")
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ctx.header = ""
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ctx.Format = Format(format)
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ctx.preFormat()
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return ctx.parseFormat()
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}
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// NewDiskUsageFormat returns a format for rendering an DiskUsageContext
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func NewDiskUsageFormat(source string, verbose bool) Format {
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switch {
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case verbose && source == RawFormatKey:
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format := `{{range .Images}}type: Image
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` + NewImageFormat(source, false, true) + `
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{{end -}}
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{{range .Containers}}type: Container
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` + NewContainerFormat(source, false, true) + `
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{{end -}}
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{{range .Volumes}}type: Volume
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` + NewVolumeFormat(source, false) + `
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{{end -}}
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{{range .BuildCache}}type: Build Cache
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` + NewBuildCacheFormat(source, false) + `
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{{end -}}`
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return format
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case !verbose && source == TableFormatKey:
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return Format(defaultDiskUsageTableFormat)
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case !verbose && source == RawFormatKey:
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format := `type: {{.Type}}
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total: {{.TotalCount}}
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active: {{.Active}}
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size: {{.Size}}
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reclaimable: {{.Reclaimable}}
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`
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return Format(format)
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default:
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return Format(source)
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}
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}
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func (ctx *DiskUsageContext) Write() (err error) {
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if ctx.Verbose {
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return ctx.verboseWrite()
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}
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ctx.buffer = bytes.NewBufferString("")
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ctx.preFormat()
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tmpl, err := ctx.parseFormat()
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if err != nil {
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return err
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}
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err = ctx.contextFormat(tmpl, &diskUsageImagesContext{
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totalSize: ctx.LayersSize,
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images: ctx.Images,
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})
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if err != nil {
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return err
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}
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err = ctx.contextFormat(tmpl, &diskUsageContainersContext{
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containers: ctx.Containers,
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})
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if err != nil {
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return err
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}
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err = ctx.contextFormat(tmpl, &diskUsageVolumesContext{
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volumes: ctx.Volumes,
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})
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if err != nil {
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return err
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}
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err = ctx.contextFormat(tmpl, &diskUsageBuilderContext{
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builderSize: ctx.BuilderSize,
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buildCache: ctx.BuildCache,
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})
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if err != nil {
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return err
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}
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diskUsageContainersCtx := diskUsageContainersContext{containers: []*container.Summary{}}
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diskUsageContainersCtx.Header = SubHeaderContext{
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"Type": typeHeader,
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"TotalCount": totalHeader,
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"Active": activeHeader,
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"Size": SizeHeader,
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"Reclaimable": reclaimableHeader,
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}
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ctx.postFormat(tmpl, &diskUsageContainersCtx)
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return err
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}
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type diskUsageContext struct {
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Images []*imageContext
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Containers []*ContainerContext
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Volumes []*volumeContext
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BuildCache []*buildCacheContext
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}
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func (ctx *DiskUsageContext) verboseWrite() error {
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duc := &diskUsageContext{
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Images: make([]*imageContext, 0, len(ctx.Images)),
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Containers: make([]*ContainerContext, 0, len(ctx.Containers)),
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Volumes: make([]*volumeContext, 0, len(ctx.Volumes)),
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BuildCache: make([]*buildCacheContext, 0, len(ctx.BuildCache)),
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}
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trunc := ctx.Format.IsTable()
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// First images
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for _, i := range ctx.Images {
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repo := "<none>"
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tag := "<none>"
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if len(i.RepoTags) > 0 && !isDangling(*i) {
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// Only show the first tag
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ref, err := reference.ParseNormalizedNamed(i.RepoTags[0])
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if err != nil {
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continue
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}
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if nt, ok := ref.(reference.NamedTagged); ok {
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repo = reference.FamiliarName(ref)
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tag = nt.Tag()
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}
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}
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duc.Images = append(duc.Images, &imageContext{
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repo: repo,
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tag: tag,
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trunc: trunc,
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i: *i,
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})
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}
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// Now containers
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for _, c := range ctx.Containers {
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// Don't display the virtual size
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c.SizeRootFs = 0
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duc.Containers = append(duc.Containers, &ContainerContext{trunc: trunc, c: *c})
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}
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// And volumes
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for _, v := range ctx.Volumes {
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duc.Volumes = append(duc.Volumes, &volumeContext{v: *v})
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}
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// And build cache
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buildCacheSort(ctx.BuildCache)
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for _, v := range ctx.BuildCache {
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duc.BuildCache = append(duc.BuildCache, &buildCacheContext{v: v, trunc: trunc})
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}
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if ctx.Format == TableFormatKey {
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return ctx.verboseWriteTable(duc)
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}
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ctx.preFormat()
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tmpl, err := ctx.parseFormat()
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if err != nil {
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return err
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}
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return tmpl.Execute(ctx.Output, duc)
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}
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func (ctx *DiskUsageContext) verboseWriteTable(duc *diskUsageContext) error {
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tmpl, err := ctx.startSubsection(defaultDiskUsageImageTableFormat)
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if err != nil {
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return err
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}
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ctx.Output.Write([]byte("Images space usage:\n\n"))
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for _, img := range duc.Images {
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if err := ctx.contextFormat(tmpl, img); err != nil {
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return err
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}
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}
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ctx.postFormat(tmpl, newImageContext())
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tmpl, err = ctx.startSubsection(defaultDiskUsageContainerTableFormat)
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if err != nil {
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return err
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}
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ctx.Output.Write([]byte("\nContainers space usage:\n\n"))
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for _, c := range duc.Containers {
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if err := ctx.contextFormat(tmpl, c); err != nil {
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return err
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}
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}
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ctx.postFormat(tmpl, NewContainerContext())
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tmpl, err = ctx.startSubsection(defaultDiskUsageVolumeTableFormat)
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if err != nil {
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return err
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}
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ctx.Output.Write([]byte("\nLocal Volumes space usage:\n\n"))
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for _, v := range duc.Volumes {
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if err := ctx.contextFormat(tmpl, v); err != nil {
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return err
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}
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}
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ctx.postFormat(tmpl, newVolumeContext())
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tmpl, err = ctx.startSubsection(defaultDiskUsageBuildCacheTableFormat)
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if err != nil {
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return err
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}
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fmt.Fprintf(ctx.Output, "\nBuild cache usage: %s\n\n", units.HumanSize(float64(ctx.BuilderSize)))
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for _, v := range duc.BuildCache {
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if err := ctx.contextFormat(tmpl, v); err != nil {
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return err
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}
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}
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ctx.postFormat(tmpl, newBuildCacheContext())
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return nil
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}
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type diskUsageImagesContext struct {
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HeaderContext
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totalSize int64
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images []*image.Summary
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}
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func (c *diskUsageImagesContext) MarshalJSON() ([]byte, error) {
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return MarshalJSON(c)
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}
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func (c *diskUsageImagesContext) Type() string {
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return "Images"
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}
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func (c *diskUsageImagesContext) TotalCount() string {
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return strconv.Itoa(len(c.images))
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}
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func (c *diskUsageImagesContext) Active() string {
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used := 0
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for _, i := range c.images {
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if i.Containers > 0 {
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used++
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}
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}
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return strconv.Itoa(used)
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}
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func (c *diskUsageImagesContext) Size() string {
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return units.HumanSize(float64(c.totalSize))
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}
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func (c *diskUsageImagesContext) Reclaimable() string {
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var used int64
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for _, i := range c.images {
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if i.Containers != 0 {
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if i.Size == -1 || i.SharedSize == -1 {
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continue
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}
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used += i.Size - i.SharedSize
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}
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}
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reclaimable := c.totalSize - used
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if c.totalSize > 0 {
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return fmt.Sprintf("%s (%v%%)", units.HumanSize(float64(reclaimable)), (reclaimable*100)/c.totalSize)
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}
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return units.HumanSize(float64(reclaimable))
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}
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type diskUsageContainersContext struct {
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HeaderContext
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containers []*container.Summary
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}
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func (c *diskUsageContainersContext) MarshalJSON() ([]byte, error) {
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return MarshalJSON(c)
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}
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func (c *diskUsageContainersContext) Type() string {
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return "Containers"
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}
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func (c *diskUsageContainersContext) TotalCount() string {
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return strconv.Itoa(len(c.containers))
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}
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func (c *diskUsageContainersContext) isActive(ctr container.Summary) bool {
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return strings.Contains(ctr.State, "running") ||
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strings.Contains(ctr.State, "paused") ||
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strings.Contains(ctr.State, "restarting")
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}
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func (c *diskUsageContainersContext) Active() string {
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used := 0
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for _, ctr := range c.containers {
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if c.isActive(*ctr) {
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used++
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}
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}
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return strconv.Itoa(used)
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}
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func (c *diskUsageContainersContext) Size() string {
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var size int64
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for _, ctr := range c.containers {
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size += ctr.SizeRw
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}
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return units.HumanSize(float64(size))
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}
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func (c *diskUsageContainersContext) Reclaimable() string {
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var reclaimable, totalSize int64
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for _, ctr := range c.containers {
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if !c.isActive(*ctr) {
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reclaimable += ctr.SizeRw
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}
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totalSize += ctr.SizeRw
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}
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if totalSize > 0 {
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return fmt.Sprintf("%s (%v%%)", units.HumanSize(float64(reclaimable)), (reclaimable*100)/totalSize)
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}
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return units.HumanSize(float64(reclaimable))
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}
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type diskUsageVolumesContext struct {
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HeaderContext
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volumes []*volume.Volume
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}
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func (c *diskUsageVolumesContext) MarshalJSON() ([]byte, error) {
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return MarshalJSON(c)
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}
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func (c *diskUsageVolumesContext) Type() string {
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return "Local Volumes"
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}
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func (c *diskUsageVolumesContext) TotalCount() string {
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return strconv.Itoa(len(c.volumes))
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}
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func (c *diskUsageVolumesContext) Active() string {
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used := 0
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for _, v := range c.volumes {
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if v.UsageData.RefCount > 0 {
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used++
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}
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}
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return strconv.Itoa(used)
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}
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func (c *diskUsageVolumesContext) Size() string {
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var size int64
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for _, v := range c.volumes {
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if v.UsageData.Size != -1 {
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size += v.UsageData.Size
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}
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}
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return units.HumanSize(float64(size))
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}
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func (c *diskUsageVolumesContext) Reclaimable() string {
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var reclaimable int64
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var totalSize int64
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for _, v := range c.volumes {
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if v.UsageData.Size != -1 {
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if v.UsageData.RefCount == 0 {
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reclaimable += v.UsageData.Size
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}
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totalSize += v.UsageData.Size
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}
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}
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if totalSize > 0 {
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return fmt.Sprintf("%s (%v%%)", units.HumanSize(float64(reclaimable)), (reclaimable*100)/totalSize)
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}
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return units.HumanSize(float64(reclaimable))
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}
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type diskUsageBuilderContext struct {
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HeaderContext
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builderSize int64
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buildCache []*types.BuildCache
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}
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func (c *diskUsageBuilderContext) MarshalJSON() ([]byte, error) {
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return MarshalJSON(c)
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}
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func (c *diskUsageBuilderContext) Type() string {
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return "Build Cache"
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}
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func (c *diskUsageBuilderContext) TotalCount() string {
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return strconv.Itoa(len(c.buildCache))
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}
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func (c *diskUsageBuilderContext) Active() string {
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numActive := 0
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for _, bc := range c.buildCache {
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if bc.InUse {
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numActive++
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}
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}
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return strconv.Itoa(numActive)
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}
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func (c *diskUsageBuilderContext) Size() string {
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return units.HumanSize(float64(c.builderSize))
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}
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func (c *diskUsageBuilderContext) Reclaimable() string {
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var inUseBytes int64
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for _, bc := range c.buildCache {
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if bc.InUse && !bc.Shared {
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inUseBytes += bc.Size
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}
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}
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return units.HumanSize(float64(c.builderSize - inUseBytes))
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}
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