fix(package): update read-pkg to version 4.0.0

Author: greenkeeper[bot]

lib/get-pkg.js

@@ -7,7 +7,7 @@ module.exports = async pkgRoot => {
   let pkg;
 
   try {
-    pkg = await readPkg(pkgRoot);
+    pkg = await readPkg({cwd: pkgRoot ? String(pkgRoot) : process.cwd()});
 
     if (!pkg.name) {
       errors.push(getError('ENOPKGNAME'));

package.json

@@ -26,7 +26,7 @@
     "nerf-dart": "^1.0.0",
     "normalize-url": "^3.0.0",
     "parse-json": "^4.0.0",
-    "read-pkg": "^3.0.0",
+    "read-pkg": "^4.0.0",
     "registry-auth-token": "^3.3.1"
   },
   "devDependencies": {

test/integration.test.js

@@ -155,7 +155,7 @@ test.serial('Throw SemanticReleaseError Array if config option are not valid in
   t.is(errors[2].name, 'SemanticReleaseError');
   t.is(errors[2].code, 'EINVALIDPKGROOT');
   t.is(errors[3].name, 'SemanticReleaseError');
-  t.is(errors[3].code, 'ENOPKGNAME');
+  t.is(errors[3].code, 'ENOPKG');
 });
 
 test.serial('Publish the package', async t => {
@@ -266,7 +266,7 @@ test.serial('Throw SemanticReleaseError Array if config option are not valid in
   t.is(errors[2].name, 'SemanticReleaseError');
   t.is(errors[2].code, 'EINVALIDPKGROOT');
   t.is(errors[3].name, 'SemanticReleaseError');
-  t.is(errors[3].code, 'ENOPKGNAME');
+  t.is(errors[3].code, 'ENOPKG');
 });
 
 test.serial('Prepare the package', async t => {
@@ -331,7 +331,7 @@ test.serial('Throw SemanticReleaseError Array if config option are not valid in
   t.is(errors[2].name, 'SemanticReleaseError');
   t.is(errors[2].code, 'EINVALIDPKGROOT');
   t.is(errors[3].name, 'SemanticReleaseError');
-  t.is(errors[3].code, 'ENOPKGNAME');
+  t.is(errors[3].code, 'ENOPKG');
 });
 
 test.serial('Verify token and set up auth only on the fist call, then prepare on prepare call only', async t => {