updates

dot.go

@@ -1,12 +1,8 @@
 package incr
 
 import (
-	"bytes"
 	"fmt"
 	"io"
-	"os"
-	"os/exec"
-	"path/filepath"
 	"slices"
 	"strings"
 )
@@ -73,41 +69,3 @@ func Dot(wr io.Writer, g *Graph) (err error) {
 	writef(0, "}")
 	return
 }
-
-func homedir(filename string) string {
-	var rootDir string
-	if rootDir = os.Getenv("INCR_DEBUG_DOT_ROOT"); rootDir == "" {
-		rootDir = os.ExpandEnv("$HOME/Desktop")
-	}
-	return filepath.Join(rootDir, filename)
-}
-
-func dumpDot(g *Graph, path string) error {
-	if os.Getenv("INCR_DEBUG_DOT") != "true" {
-		return nil
-	}
-
-	dotContents := new(bytes.Buffer)
-	if err := Dot(dotContents, g); err != nil {
-		return err
-	}
-	dotOutput, err := os.Create(os.ExpandEnv(path))
-	if err != nil {
-		return err
-	}
-	defer func() { _ = dotOutput.Close() }()
-	dotFullPath, err := exec.LookPath("dot")
-	if err != nil {
-		return fmt.Errorf("there was an issue finding `dot` in your path; you may need to install the `graphviz` package or similar on your platform: %w", err)
-	}
-
-	errOut := new(bytes.Buffer)
-	cmd := exec.Command(dotFullPath, "-Tpng")
-	cmd.Stdin = dotContents
-	cmd.Stdout = dotOutput
-	cmd.Stderr = errOut
-	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("%v; %w", errOut.String(), err)
-	}
-	return nil
-}

main_test.go

@@ -1,10 +1,13 @@
 package incr
 
 import (
+	"bytes"
 	"context"
 	"fmt"
 	"math"
 	"os"
+	"os/exec"
+	"path/filepath"
 	"testing"
 
 	"github.com/wcharczuk/go-incr/testutil"
@@ -180,3 +183,41 @@ func createDynamicBind(ctx context.Context, label string, a, b Incr[string]) (Va
 	bind.Node().SetLabel(fmt.Sprintf("bind - %s", label))
 	return bindVar, bind
 }
+
+func homedir(filename string) string {
+	var rootDir string
+	if rootDir = os.Getenv("INCR_DEBUG_DOT_ROOT"); rootDir == "" {
+		rootDir = os.ExpandEnv("$HOME/Desktop")
+	}
+	return filepath.Join(rootDir, filename)
+}
+
+func dumpDot(g *Graph, path string) error {
+	if os.Getenv("INCR_DEBUG_DOT") != "true" {
+		return nil
+	}
+
+	dotContents := new(bytes.Buffer)
+	if err := Dot(dotContents, g); err != nil {
+		return err
+	}
+	dotOutput, err := os.Create(os.ExpandEnv(path))
+	if err != nil {
+		return err
+	}
+	defer func() { _ = dotOutput.Close() }()
+	dotFullPath, err := exec.LookPath("dot")
+	if err != nil {
+		return fmt.Errorf("there was an issue finding `dot` in your path; you may need to install the `graphviz` package or similar on your platform: %w", err)
+	}
+
+	errOut := new(bytes.Buffer)
+	cmd := exec.Command(dotFullPath, "-Tpng")
+	cmd.Stdin = dotContents
+	cmd.Stdout = dotOutput
+	cmd.Stderr = errOut
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("%v; %w", errOut.String(), err)
+	}
+	return nil
+}