write-json-file - npm Package Compare versions

Comparing version 4.1.1 to 4.2.0

index.js

@@ -13,2 +13,4 @@ 'use strict';
 
+const hasTrailingNewline = file => /\n$/.test(file);
+
 const init = (fn, filePath, data, options) => {
@@ -41,12 +43,16 @@ if (!filePath) {
 	let {indent} = options;
+	let trailingNewline = '\n';
+	try {
+		const file = await readFile(filePath, 'utf8');
+		if (!hasTrailingNewline(file)) {
+			trailingNewline = '';
+		}
 
-	if (options.detectIndent) {
-		try {
-			const file = await readFile(filePath, 'utf8');
+		if (options.detectIndent) {
 			indent = detectIndent(file).indent;
-		} catch (error) {
-			if (error.code !== 'ENOENT') {
-				throw error;
-			}
 		}
+	} catch (error) {
+		if (error.code !== 'ENOENT') {
+			throw error;
+		}
 	}
@@ -56,3 +62,3 @@
 
-	return writeFileAtomic(filePath, `${json}\n`, {mode: options.mode});
+	return writeFileAtomic(filePath, `${json}${trailingNewline}`, {mode: options.mode});
 };
@@ -62,12 +68,16 @@
 	let {indent} = options;
+	let trailingNewline = '\n';
+	try {
+		const file = fs.readFileSync(filePath, 'utf8');
+		if (!hasTrailingNewline(file)) {
+			trailingNewline = '';
+		}
 
-	if (options.detectIndent) {
-		try {
-			const file = fs.readFileSync(filePath, 'utf8');
+		if (options.detectIndent) {
 			indent = detectIndent(file).indent;
-		} catch (error) {
-			if (error.code !== 'ENOENT') {
-				throw error;
-			}
 		}
+	} catch (error) {
+		if (error.code !== 'ENOENT') {
+			throw error;
+		}
 	}
@@ -77,3 +87,3 @@
 
-	return writeFileAtomic.sync(filePath, `${json}\n`, {mode: options.mode});
+	return writeFileAtomic.sync(filePath, `${json}${trailingNewline}`, {mode: options.mode});
 };
@@ -80,0 +90,0 @@

package.json

 {
 	"name": "write-json-file",
-	"version": "4.1.1",
+	"version": "4.2.0",
 	"description": "Stringify and write JSON to a file atomically",
@@ -5,0 +5,0 @@ "license": "MIT",

No alert changes

Improved metrics

Total package byte prevSize

7506

increased by3.62%

Lines of code

140

increased by6.87%

No dependency changes