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system df: show table output for build cache
Signed-off-by: Tibor Vass <tibor@docker.com>
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Tibor Vass
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Sep 1, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| package formatter | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "sort" | ||
| "strings" | ||
| "time" | ||
|
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| "github.com/docker/docker/api/types" | ||
| "github.com/docker/docker/pkg/stringid" | ||
| "github.com/docker/go-units" | ||
| ) | ||
|
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| const ( | ||
| defaultBuildCacheTableFormat = "table {{.ID}}\t{{.Type}}\t{{.Size}}\t{{.CreatedSince}}\t{{.LastUsedSince}}\t{{.UsageCount}}\t{{.InUse}}\t{{.Shared}}\t{{.Description}}" | ||
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| cacheIDHeader = "CACHE ID" | ||
| parentHeader = "PARENT" | ||
| lastUsedSinceHeader = "LAST USED" | ||
| usageCountHeader = "USAGE" | ||
| inUseHeader = "IN USE" | ||
| sharedHeader = "SHARED" | ||
| ) | ||
|
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| // NewBuildCacheFormat returns a Format for rendering using a Context | ||
| func NewBuildCacheFormat(source string, quiet bool) Format { | ||
| switch source { | ||
| case TableFormatKey: | ||
| if quiet { | ||
| return defaultQuietFormat | ||
| } | ||
| return Format(defaultBuildCacheTableFormat) | ||
| case RawFormatKey: | ||
| if quiet { | ||
| return `build_cache_id: {{.ID}}` | ||
| } | ||
| format := `build_cache_id: {{.ID}} | ||
| parent_id: {{.Parent}} | ||
| type: {{.Type}} | ||
| description: {{.Description}} | ||
| created_at: {{.CreatedAt}} | ||
| last_used_at: {{.LastUsedAt}} | ||
| usage_count: {{.UsageCount}} | ||
| in_use: {{.InUse}} | ||
| shared: {{.Shared}} | ||
| ` | ||
| return Format(format) | ||
| } | ||
| return Format(source) | ||
| } | ||
|
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| func buildCacheSort(buildCache []*types.BuildCache) { | ||
| sort.Slice(buildCache, func(i, j int) bool { | ||
| lui, luj := buildCache[i].LastUsedAt, buildCache[j].LastUsedAt | ||
| switch { | ||
| case lui == luj: | ||
| return strings.Compare(buildCache[i].ID, buildCache[j].ID) < 0 | ||
| case lui == nil: | ||
| return true | ||
| case luj == nil: | ||
| return false | ||
| case lui.Equal(*luj): | ||
| return strings.Compare(buildCache[i].ID, buildCache[j].ID) < 0 | ||
| } | ||
| return lui.Before(*luj) | ||
| }) | ||
| } | ||
|
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| // BuildCacheWrite renders the context for a list of containers | ||
| func BuildCacheWrite(ctx Context, buildCaches []*types.BuildCache) error { | ||
| render := func(format func(subContext subContext) error) error { | ||
| buildCacheSort(buildCaches) | ||
| for _, bc := range buildCaches { | ||
| err := format(&buildCacheContext{trunc: ctx.Trunc, v: bc}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
| return ctx.Write(newBuildCacheContext(), render) | ||
| } | ||
|
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| type buildCacheHeaderContext map[string]string | ||
|
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| type buildCacheContext struct { | ||
| HeaderContext | ||
| trunc bool | ||
| v *types.BuildCache | ||
| } | ||
|
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| func newBuildCacheContext() *buildCacheContext { | ||
| buildCacheCtx := buildCacheContext{} | ||
| buildCacheCtx.header = buildCacheHeaderContext{ | ||
| "ID": cacheIDHeader, | ||
| "Parent": parentHeader, | ||
| "Type": typeHeader, | ||
| "Size": sizeHeader, | ||
| "CreatedSince": createdSinceHeader, | ||
| "LastUsedSince": lastUsedSinceHeader, | ||
| "UsageCount": usageCountHeader, | ||
| "InUse": inUseHeader, | ||
| "Shared": sharedHeader, | ||
| "Description": descriptionHeader, | ||
| } | ||
| return &buildCacheCtx | ||
| } | ||
|
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| func (c *buildCacheContext) MarshalJSON() ([]byte, error) { | ||
| return marshalJSON(c) | ||
| } | ||
|
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| func (c *buildCacheContext) ID() string { | ||
| if c.trunc { | ||
| return stringid.TruncateID(c.v.ID) | ||
| } | ||
| return c.v.ID | ||
| } | ||
|
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| func (c *buildCacheContext) Parent() string { | ||
| if c.trunc { | ||
| return stringid.TruncateID(c.v.Parent) | ||
| } | ||
| return c.v.Parent | ||
| } | ||
|
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| func (c *buildCacheContext) Type() string { | ||
| return c.v.Type | ||
| } | ||
|
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| func (c *buildCacheContext) Description() string { | ||
| return c.v.Description | ||
| } | ||
|
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| func (c *buildCacheContext) Size() string { | ||
| return units.HumanSizeWithPrecision(float64(c.v.Size), 3) | ||
| } | ||
|
|
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| func (c *buildCacheContext) CreatedSince() string { | ||
| return units.HumanDuration(time.Now().UTC().Sub(c.v.CreatedAt)) + " ago" | ||
| } | ||
|
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| func (c *buildCacheContext) LastUsedSince() string { | ||
| if c.v.LastUsedAt == nil { | ||
| return "" | ||
| } | ||
| return units.HumanDuration(time.Now().UTC().Sub(*c.v.LastUsedAt)) + " ago" | ||
| } | ||
|
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| func (c *buildCacheContext) UsageCount() string { | ||
| return fmt.Sprintf("%d", c.v.UsageCount) | ||
| } | ||
|
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| func (c *buildCacheContext) InUse() string { | ||
| return fmt.Sprintf("%t", c.v.InUse) | ||
| } | ||
|
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| func (c *buildCacheContext) Shared() string { | ||
| return fmt.Sprintf("%t", c.v.Shared) | ||
| } |
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