cli/command/formatter: use alias/wrapper for TruncateID

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/formatter/displayutils.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 	"unicode/utf8"
 
+	"github.com/moby/moby/client/pkg/stringid"
 	"golang.org/x/text/width"
 )
 
@@ -27,23 +28,12 @@ func charWidth(r rune) int {
 	}
 }
 
-const shortLen = 12
-
 // TruncateID returns a shorthand version of a string identifier for presentation,
 // after trimming digest algorithm prefix (if any).
 //
-// This function is a copy of [stringid.TruncateID] for presentation / formatting
-// purposes.
-//
-// [stringid.TruncateID]: https://github.com/moby/moby/blob/v28.3.2/pkg/stringid/stringid.go#L19
+// This function is a wrapper for [stringid.TruncateID] for convenience.
 func TruncateID(id string) string {
-	if i := strings.IndexRune(id, ':'); i >= 0 {
-		id = id[i+1:]
-	}
-	if len(id) > shortLen {
-		id = id[:shortLen]
-	}
-	return id
+	return stringid.TruncateID(id)
 }
 
 // Ellipsis truncates a string to fit within maxDisplayWidth, and appends ellipsis (…).

vendor/github.com/moby/moby/client/pkg/stringid/stringid.go

@@ -0,0 +1,47 @@
+// Package stringid provides helper functions for dealing with string identifiers.
+//
+// It is similar to the package used by the daemon, but for presentational
+// purposes in the client.
+package stringid
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"strings"
+)
+
+const (
+	shortLen = 12
+	fullLen  = 64
+)
+
+// TruncateID returns a shorthand version of a string identifier for presentation.
+// For convenience, it accepts both digests ("sha256:xxxx") and IDs without an
+// algorithm prefix. It truncates the algorithm (if any) before truncating the
+// ID. The length of the truncated ID is currently fixed, but users should make
+// no assumptions of this to not change; it is merely a prefix of the ID that
+// provides enough uniqueness for common scenarios.
+//
+// Truncated IDs ("ID-prefixes") usually can be used to uniquely identify an
+// object (such as a container or network), but collisions may happen, in
+// which case an "ambiguous result" error is produced. In case of a collision,
+// the caller should try with a longer prefix or the full-length ID.
+func TruncateID(id string) string {
+	if i := strings.IndexRune(id, ':'); i >= 0 {
+		id = id[i+1:]
+	}
+	if len(id) > shortLen {
+		id = id[:shortLen]
+	}
+	return id
+}
+
+// GenerateRandomID returns a unique, 64-character ID consisting of a-z, 0-9.
+func GenerateRandomID() string {
+	b := make([]byte, 32)
+	if _, err := rand.Read(b); err != nil {
+		panic(err) // This shouldn't happen
+	}
+	id := hex.EncodeToString(b)
+	return id
+}

vendor/modules.txt

@@ -201,6 +201,7 @@ github.com/moby/moby/api/types/volume
 # github.com/moby/moby/client v0.0.0 => github.com/moby/moby/client v0.0.0-20250726000215-c4afa7715715
 ## explicit; go 1.23.0
 github.com/moby/moby/client
+github.com/moby/moby/client/pkg/stringid
 # github.com/moby/patternmatcher v0.6.0
 ## explicit; go 1.19
 github.com/moby/patternmatcher