fix: handle custom url without prefix

Author: pvdlg

lib/verify.js

@@ -1,6 +1,6 @@
-const url = require('url');
 const {isString, isPlainObject, isUndefined, isArray} = require('lodash');
 const parseGithubUrl = require('parse-github-url');
+const urlJoin = require('url-join');
 const SemanticReleaseError = require('@semantic-release/error');
 const resolveConfig = require('./resolve-config');
 const getClient = require('./get-client');
@@ -35,7 +35,7 @@ module.exports = async (pluginConfig, {repositoryUrl}, logger) => {
   }
 
   if (githubUrl) {
-    logger.log('Verify Github authentication (%s)', url.resolve(githubUrl, githubApiPathPrefix));
+    logger.log('Verify Github authentication (%s)', urlJoin(githubUrl, githubApiPathPrefix));
   } else {
     logger.log('Verify Github authentication');
   }

package.json

@@ -24,7 +24,8 @@
     "lodash": "^4.17.4",
     "mime": "^2.0.3",
     "p-reduce": "^1.0.0",
-    "parse-github-url": "^1.0.1"
+    "parse-github-url": "^1.0.1",
+    "url-join": "^2.0.2"
   },
   "devDependencies": {
     "ava": "^0.24.0",

test/verify.test.js

@@ -76,7 +76,6 @@ test.serial('Verify package, token and repository with environment variables', a
   const repo = 'test_repo';
   process.env.GH_URL = 'https://othertesturl.com:443';
   process.env.GH_TOKEN = 'github_token';
-  process.env.GH_PREFIX = 'prefix';
 
   const github = authenticate({
     githubUrl: process.env.GH_URL,
@@ -94,7 +93,7 @@ test.serial('Verify package, token and repository with environment variables', a
     )
   );
   t.true(github.isDone());
-  t.deepEqual(t.context.log.args[0], ['Verify Github authentication (%s)', 'https://othertesturl.com:443/prefix']);
+  t.deepEqual(t.context.log.args[0], ['Verify Github authentication (%s)', 'https://othertesturl.com:443/']);
 });
 
 test.serial('Verify package, token and repository access with alternative environment varialbes', async t => {