refactor: formatter gets own package

pkg/formatter/formatter.go

@@ -0,0 +1,57 @@
+package formatter
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/docker/cli/cli/command/formatter"
+	"github.com/docker/go-units"
+	"github.com/olekukonko/tablewriter"
+	"github.com/schollz/progressbar/v3"
+)
+
+func ShortenID(str string) string {
+	return str[:12]
+}
+
+func Truncate(str string) string {
+	return fmt.Sprintf(`"%s"`, formatter.Ellipsis(str, 19))
+}
+
+func SmallSHA(hash string) string {
+	return hash[:8]
+}
+
+// RemoveSha remove image sha from a string that are added in some docker outputs
+func RemoveSha(str string) string {
+	return strings.Split(str, "@")[0]
+}
+
+// HumanDuration from docker/cli RunningFor() to be accessible outside of the class
+func HumanDuration(timestamp int64) string {
+	date := time.Unix(timestamp, 0)
+	now := time.Now().UTC()
+	return units.HumanDuration(now.Sub(date)) + " ago"
+}
+
+// CreateTable prepares a table layout for output.
+func CreateTable(columns []string) *tablewriter.Table {
+	table := tablewriter.NewWriter(os.Stdout)
+	table.SetAutoWrapText(false)
+	table.SetHeader(columns)
+	return table
+}
+
+// CreateProgressbar generates a progress bar
+func CreateProgressbar(length int, title string) *progressbar.ProgressBar {
+	return progressbar.NewOptions(
+		length,
+		progressbar.OptionClearOnFinish(),
+		progressbar.OptionSetPredictTime(false),
+		progressbar.OptionShowCount(),
+		progressbar.OptionFullWidth(),
+		progressbar.OptionSetDescription(title),
+	)
+}