Remove DotGraph method from Rule interface

rules/alerting.go

@@ -16,7 +16,7 @@ package rules
 import (
 	"fmt"
 	"html/template"
-	"reflect"
+	"strings"
 	"sync"
 	"time"
 
@@ -188,21 +188,6 @@ func (rule *AlertingRule) Eval(timestamp clientmodel.Timestamp, engine *promql.E
 	return vector, nil
 }
 
-// DotGraph returns the text representation of a dot graph.
-func (rule *AlertingRule) DotGraph() string {
-	graph := fmt.Sprintf(
-		`digraph "Rules" {
-	  %#p[shape="box",label="ALERT %s IF FOR %s"];
-		%#p -> %x;
-		%s
-	}`,
-		&rule, rule.name, strutil.DurationToString(rule.holdDuration),
-		&rule, reflect.ValueOf(rule.Vector).Pointer(),
-		rule.Vector.DotGraph(),
-	)
-	return graph
-}
-
 func (rule *AlertingRule) String() string {
 	return fmt.Sprintf("ALERT %s IF %s FOR %s WITH %s", rule.name, rule.Vector, strutil.DurationToString(rule.holdDuration), rule.Labels)
 }

rules/recording.go

@@ -16,7 +16,7 @@ package rules
 import (
 	"fmt"
 	"html/template"
-	"reflect"
+	"strings"
 
 	clientmodel "github.com/prometheus/client_golang/model"
 
@@ -60,21 +60,6 @@ func (rule RecordingRule) Eval(timestamp clientmodel.Timestamp, engine *promql.E
 	return vector, nil
 }
 
-// DotGraph returns the text representation of a dot graph.
-func (rule RecordingRule) DotGraph() string {
-	graph := fmt.Sprintf(
-		`digraph "Rules" {
-	  %#p[shape="box",label="%s = "];
-		%#p -> %x;
-		%s
-	}`,
-		&rule, rule.name,
-		&rule, reflect.ValueOf(rule.vector).Pointer(),
-		rule.vector.DotGraph(),
-	)
-	return graph
-}
-
 func (rule RecordingRule) String() string {
 	return fmt.Sprintf("%s%s = %s\n", rule.name, rule.labels, rule.vector)
 }

rules/rules.go

@@ -28,8 +28,6 @@ type Rule interface {
 	Name() string
 	// Eval evaluates the rule, including any associated recording or alerting actions.
 	Eval(clientmodel.Timestamp, *promql.Engine) (promql.Vector, error)
-	// DotGraph returns a Graphviz dot graph of the rule.
-	DotGraph() string
 	// String returns a human-readable string representation of the rule.
 	String() string
 	// HTMLSnippet returns a human-readable string representation of the rule,