package formatter import ( "strconv" "strings" "time" "github.com/docker/docker/api/types/image" "github.com/docker/docker/pkg/stringid" "github.com/docker/docker/pkg/stringutils" units "github.com/docker/go-units" ) const ( defaultHistoryTableFormat = "table {{.ID}}\t{{.CreatedSince}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}" nonHumanHistoryTableFormat = "table {{.ID}}\t{{.CreatedAt}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}" historyIDHeader = "IMAGE" createdByHeader = "CREATED BY" commentHeader = "COMMENT" ) // NewHistoryFormat returns a format for rendering an HistoryContext func NewHistoryFormat(source string, quiet bool, human bool) Format { switch source { case TableFormatKey: switch { case quiet: return defaultQuietFormat case !human: return nonHumanHistoryTableFormat default: return defaultHistoryTableFormat } } return Format(source) } // HistoryWrite writes the context func HistoryWrite(ctx Context, human bool, histories []image.HistoryResponseItem) error { render := func(format func(subContext subContext) error) error { for _, history := range histories { historyCtx := &historyContext{trunc: ctx.Trunc, h: history, human: human} if err := format(historyCtx); err != nil { return err } } return nil } historyCtx := &historyContext{} historyCtx.header = map[string]string{ "ID": historyIDHeader, "CreatedSince": createdSinceHeader, "CreatedAt": createdAtHeader, "CreatedBy": createdByHeader, "Size": sizeHeader, "Comment": commentHeader, } return ctx.Write(historyCtx, render) } type historyContext struct { HeaderContext trunc bool human bool h image.HistoryResponseItem } func (c *historyContext) MarshalJSON() ([]byte, error) { return marshalJSON(c) } func (c *historyContext) ID() string { if c.trunc { return stringid.TruncateID(c.h.ID) } return c.h.ID } func (c *historyContext) CreatedAt() string { return time.Unix(c.h.Created, 0).Format(time.RFC3339) } func (c *historyContext) CreatedSince() string { if !c.human { return c.CreatedAt() } created := units.HumanDuration(time.Now().UTC().Sub(time.Unix(c.h.Created, 0))) return created + " ago" } func (c *historyContext) CreatedBy() string { createdBy := strings.Replace(c.h.CreatedBy, "\t", " ", -1) if c.trunc { return stringutils.Ellipsis(createdBy, 45) } return createdBy } func (c *historyContext) Size() string { if c.human { return units.HumanSizeWithPrecision(float64(c.h.Size), 3) } return strconv.FormatInt(c.h.Size, 10) } func (c *historyContext) Comment() string { return c.h.Comment }