48 lines
983 B
Go
48 lines
983 B
Go
package image
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import (
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"github.com/wagoodman/dive/filetree"
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"strings"
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"fmt"
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"github.com/dustin/go-humanize"
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)
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const (
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LayerFormat = "%-25s %7s %s"
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)
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// Layer represents a Docker image layer and metadata
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type Layer struct {
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TarPath string
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History ImageHistoryEntry
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Index int
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Tree *filetree.FileTree
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RefTrees []*filetree.FileTree
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}
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// Id returns the truncated id of the current layer.
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func (layer *Layer) Id() string {
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rangeBound := 25
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if length := len(layer.History.ID); length < 25 {
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rangeBound = length
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}
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id := layer.History.ID[0:rangeBound]
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// show the tagged image as the last layer
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// if len(layer.History.Tags) > 0 {
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// id = "[" + strings.Join(layer.History.Tags, ",") + "]"
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// }
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return id
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}
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// String represents a layer in a columnar format.
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func (layer *Layer) String() string {
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return fmt.Sprintf(LayerFormat,
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layer.Id(),
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humanize.Bytes(uint64(layer.History.Size)),
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strings.TrimPrefix(layer.History.CreatedBy, "/bin/sh -c "))
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}
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