more tinkering.

internal/color/color.go

@@ -206,6 +206,15 @@ func (col *Color) colorful() colorful.Color {
 	}
 }
 
+func MustParse(raw string) Color {
+	col, err := Parse(raw)
+	if err != nil {
+		panic(err)
+	}
+
+	return col
+}
+
 func Parse(raw string) (col Color, err error) {
 	if raw == "" {
 		return

internal/formattools/compactidlist.go

@@ -0,0 +1,51 @@
+package formattools
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+func CompactIDList(ids []string) []string {
+	sort.Strings(ids)
+
+	currentGroup := ""
+	currentIDs := make([]string, 0, len(ids))
+	groups := make([]string, 0, 2)
+	for _, id := range ids {
+		if id == "" {
+			continue
+		}
+
+		split := strings.SplitN(id, ":", 3)
+		if len(split) < 3 {
+			continue
+		}
+
+		group := id[:len(split[0])+len(split[1])+1]
+
+		if group != currentGroup {
+			if len(currentIDs) > 0 {
+				if len(currentIDs) == 1 {
+					groups = append(groups, fmt.Sprintf("%s:%s", currentGroup, currentIDs[0]))
+				} else {
+					groups = append(groups, fmt.Sprintf("%s:{%s}", currentGroup, strings.Join(currentIDs, ",")))
+				}
+				currentIDs = currentIDs[:0]
+			}
+			currentGroup = group
+		}
+
+		currentIDs = append(currentIDs, split[2])
+	}
+
+	if len(currentIDs) > 0 {
+		if len(currentIDs) == 1 {
+			groups = append(groups, fmt.Sprintf("%s:%s", currentGroup, currentIDs[0]))
+		} else {
+			groups = append(groups, fmt.Sprintf("%s:{%s}", currentGroup, strings.Join(currentIDs, ",")))
+		}
+	}
+
+	return groups
+}

internal/gentools/commalist.go

@@ -1,6 +1,9 @@
 package gentools
 
-import "fmt"
+import (
+	"fmt"
+	"strings"
+)
 
 func FmtSprintArray[T any](arr []T) []string {
 	res := make([]string, len(arr))
@@ -10,3 +13,7 @@ func FmtSprintArray[T any](arr []T) []string {
 
 	return res
 }
+
+func FmtSprintArrayJoin[T any](arr []T, sep string) string {
+	return strings.Join(FmtSprintArray(arr), sep)
+}

internal/gentools/flagstr.go

@@ -0,0 +1,18 @@
+package gentools
+
+import "strings"
+
+func FlagString[T ~uint32](value T, flags []T, names []string) string {
+	if value == 0 {
+		return "(none)"
+	}
+
+	parts := make([]string, 0, len(flags))
+	for i, flag := range flags {
+		if value&flag == flag {
+			parts = append(parts, names[i])
+		}
+	}
+
+	return strings.Join(parts, "|")
+}