Changed to depend on the ts-graphviz package

lib/graph.js

@@ -2,8 +2,9 @@
 
 const path = require('path');
 const {promisify} = require('util');
-const graphviz = require('graphviz');
-
+const gv = require('ts-graphviz');
+const adapter = require('ts-graphviz/adapter');
+const toArray = require('stream-to-array');
 const exec = promisify(require('child_process').execFile);
 const writeFile = promisify(require('fs').writeFile);
 
@@ -13,8 +14,8 @@ const writeFile = promisify(require('fs').writeFile);
  * @param  {String} color
  */
 function setNodeColor(node, color) {
-	node.set('color', color);
-	node.set('fontcolor', color);
+	node.attributes.set('color', color);
+	node.attributes.set('fontcolor', color);
 }
 
 /**
@@ -45,28 +46,31 @@ function createGraphvizOptions(config) {
 	const graphVizOptions = config.graphVizOptions || {};
 
 	return {
-		// Graph
-		G: Object.assign({
-			overlap: false,
-			pad: 0.3,
-			rankdir: config.rankdir,
-			layout: config.layout,
-			bgcolor: config.backgroundColor
-		}, graphVizOptions.G),
-		// Edge
-		E: Object.assign({
-			color: config.edgeColor
-		}, graphVizOptions.E),
-		// Node
-		N: Object.assign({
-			fontname: config.fontName,
-			fontsize: config.fontSize,
-			color: config.nodeColor,
-			shape: config.nodeShape,
-			style: config.nodeStyle,
-			height: 0,
-			fontcolor: config.nodeColor
-		}, graphVizOptions.N)
+		dotCommand: config.graphVizPath ? config.graphVizPath : null,
+		attributes: {
+			// Graph
+			graph: Object.assign({
+				overlap: false,
+				pad: 0.3,
+				rankdir: config.rankdir,
+				layout: config.layout,
+				bgcolor: config.backgroundColor
+			}, graphVizOptions.G),
+			// Edge
+			edge: Object.assign({
+				color: config.edgeColor
+			}, graphVizOptions.E),
+			// Node
+			node: Object.assign({
+				fontname: config.fontName,
+				fontsize: config.fontSize,
+				color: config.nodeColor,
+				shape: config.nodeShape,
+				style: config.nodeStyle,
+				height: 0,
+				fontcolor: config.nodeColor
+			}, graphVizOptions.N)
+		}
 	};
 }
 
@@ -79,16 +83,12 @@ function createGraphvizOptions(config) {
  * @return {Promise}
  */
 function createGraph(modules, circular, config, options) {
-	const g = graphviz.digraph('G');
+	const g = gv.digraph('G');
 	const nodes = {};
 	const cyclicModules = circular.reduce((a, b) => a.concat(b), []);
 
-	if (config.graphVizPath) {
-		g.setGraphVizPath(config.graphVizPath);
-	}
-
 	Object.keys(modules).forEach((id) => {
-		nodes[id] = nodes[id] || g.addNode(id);
+		nodes[id] = nodes[id] || g.createNode(id);
 
 		if (!modules[id].length) {
 			setNodeColor(nodes[id], config.noDependencyColor);
@@ -97,7 +97,7 @@ function createGraph(modules, circular, config, options) {
 		}
 
 		modules[id].forEach((depId) => {
-			nodes[depId] = nodes[depId] || g.addNode(depId);
+			nodes[depId] = nodes[depId] || g.createNode(depId);
 
 			if (!modules[depId]) {
 				setNodeColor(nodes[depId], config.noDependencyColor);
@@ -106,12 +106,11 @@ function createGraph(modules, circular, config, options) {
 			g.addEdge(nodes[id], nodes[depId]);
 		});
 	});
-
-	return new Promise((resolve, reject) => {
-		g.output(options, resolve, (code, out, err) => {
-			reject(new Error(err));
-		});
-	});
+	const dot = gv.toDot(g);
+	return adapter
+		.toStream(dot, options)
+		.then(toArray)
+		.then(Buffer.concat);
 }
 
 /**
@@ -124,7 +123,7 @@ function createGraph(modules, circular, config, options) {
 module.exports.svg = function (modules, circular, config) {
 	const options = createGraphvizOptions(config);
 
-	options.type = 'svg';
+	options.format = 'svg';
 
 	return checkGraphvizInstalled(config)
 		.then(() => createGraph(modules, circular, config, options));
@@ -141,7 +140,7 @@ module.exports.svg = function (modules, circular, config) {
 module.exports.image = function (modules, circular, imagePath, config) {
 	const options = createGraphvizOptions(config);
 
-	options.type = path.extname(imagePath).replace('.', '') || 'png';
+	options.format = path.extname(imagePath).replace('.', '') || 'png';
 
 	return checkGraphvizInstalled(config)
 		.then(() => {
@@ -161,7 +160,7 @@ module.exports.image = function (modules, circular, imagePath, config) {
 module.exports.dot = function (modules, circular, config) {
 	const options = createGraphvizOptions(config);
 
-	options.type = 'dot';
+	options.format = 'dot';
 
 	return checkGraphvizInstalled(config)
 		.then(() => createGraph(modules, circular, config, options))

package.json

@@ -57,12 +57,13 @@
     "detective-scss": "^2.0.1",
     "detective-stylus": "^1.0.0",
     "detective-typescript": "^7.0.0",
-    "graphviz": "0.0.9",
     "ora": "^5.4.1",
     "pluralize": "^8.0.0",
     "precinct": "^8.1.0",
     "pretty-ms": "^7.0.1",
     "rc": "^1.2.7",
+    "stream-to-array": "^2.3.0",
+    "ts-graphviz": "^1.5.0",
     "typescript": "^3.9.5",
     "walkdir": "^0.4.1"
   },