09a36f2ef1
It's part of the presentation logic of the cli, and only used internally.
We can consider providing utilities for these, but better as part of
separate packages.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 15cf4fa912)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
129 lines
3.4 KiB
Go
129 lines
3.4 KiB
Go
package image
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import (
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"strconv"
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"strings"
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"time"
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"github.com/docker/cli/cli/command/formatter"
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"github.com/docker/docker/api/types/image"
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"github.com/docker/go-units"
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)
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const (
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defaultHistoryTableFormat = "table {{.ID}}\t{{.CreatedSince}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}"
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nonHumanHistoryTableFormat = "table {{.ID}}\t{{.CreatedAt}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}"
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historyIDHeader = "IMAGE"
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createdByHeader = "CREATED BY"
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commentHeader = "COMMENT"
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)
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// NewHistoryFormat returns a format for rendering an HistoryContext
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//
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// Deprecated: this function was only used internally and will be removed in the next release.
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func NewHistoryFormat(source string, quiet bool, human bool) formatter.Format {
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return newHistoryFormat(source, quiet, human)
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}
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// newHistoryFormat returns a format for rendering a historyContext.
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func newHistoryFormat(source string, quiet bool, human bool) formatter.Format {
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if source == formatter.TableFormatKey {
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switch {
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case quiet:
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return formatter.DefaultQuietFormat
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case !human:
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return nonHumanHistoryTableFormat
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default:
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return defaultHistoryTableFormat
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}
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}
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return formatter.Format(source)
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}
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// HistoryWrite writes the context
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//
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// Deprecated: this function was only used internally and will be removed in the next release.
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func HistoryWrite(fmtCtx formatter.Context, human bool, histories []image.HistoryResponseItem) error {
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return historyWrite(fmtCtx, human, histories)
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}
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// historyWrite writes the context
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func historyWrite(fmtCtx formatter.Context, human bool, histories []image.HistoryResponseItem) error {
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render := func(format func(subContext formatter.SubContext) error) error {
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for _, history := range histories {
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historyCtx := &historyContext{trunc: fmtCtx.Trunc, h: history, human: human}
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if err := format(historyCtx); 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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historyCtx := &historyContext{}
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historyCtx.Header = formatter.SubHeaderContext{
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"ID": historyIDHeader,
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"CreatedSince": formatter.CreatedSinceHeader,
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"CreatedAt": formatter.CreatedAtHeader,
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"CreatedBy": createdByHeader,
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"Size": formatter.SizeHeader,
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"Comment": commentHeader,
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}
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return fmtCtx.Write(historyCtx, render)
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}
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type historyContext struct {
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formatter.HeaderContext
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trunc bool
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human bool
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h image.HistoryResponseItem
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}
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func (c *historyContext) MarshalJSON() ([]byte, error) {
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return formatter.MarshalJSON(c)
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}
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func (c *historyContext) ID() string {
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if c.trunc {
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return formatter.TruncateID(c.h.ID)
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}
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return c.h.ID
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}
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func (c *historyContext) CreatedAt() string {
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return time.Unix(c.h.Created, 0).Format(time.RFC3339)
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}
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// epoch is the time before which created-at dates are not displayed with human units.
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var epoch = time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC).Unix()
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func (c *historyContext) CreatedSince() string {
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if !c.human {
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return c.CreatedAt()
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}
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if c.h.Created <= epoch {
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return "N/A"
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}
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created := units.HumanDuration(time.Now().UTC().Sub(time.Unix(c.h.Created, 0)))
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return created + " ago"
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}
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func (c *historyContext) CreatedBy() string {
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createdBy := strings.ReplaceAll(c.h.CreatedBy, "\t", " ")
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if c.trunc {
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return formatter.Ellipsis(createdBy, 45)
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}
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return createdBy
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}
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func (c *historyContext) Size() string {
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if c.human {
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return units.HumanSizeWithPrecision(float64(c.h.Size), 3)
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}
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return strconv.FormatInt(c.h.Size, 10)
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}
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func (c *historyContext) Comment() string {
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return c.h.Comment
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}
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