Bugfix/deploy ecosystem filename extension

lib/API/Deploy.js

@@ -67,7 +67,7 @@ module.exports = function(CLI) {
     // Find ecosystem file by default
     if (!Common.isConfigFile(file)) {
       env = args[0];
-      var defaultConfigNames = ['ecosystem.config.js', 'ecosystem.json', 'ecosystem.json5', 'package.json'];
+      var defaultConfigNames = [ ...Common.knonwConfigFileExtensions('ecosystem'), 'ecosystem.json5', 'package.json'];
       file = Utility.whichFileExists(defaultConfigNames);
 
       if (!file) {

lib/Common.js

@@ -263,6 +263,18 @@ Common.prepareAppConf = function(opts, app) {
   return app;
 };
 
+/**
+ * Definition of known config file extensions with their type
+ */
+Common.knonwConfigFileExtensions = {
+  '.json': 'json',
+  '.yml': 'yaml',
+  '.yaml': 'yaml',
+  '.config.js': 'js',
+  '.config.cjs': 'js',
+  '.config.mjs': 'mjs'
+}
+
 /**
  * Check if filename is a configuration file
  * @param {string} filename
@@ -271,19 +283,20 @@ Common.prepareAppConf = function(opts, app) {
 Common.isConfigFile = function (filename) {
   if (typeof (filename) !== 'string')
     return null;
-  if (filename.indexOf('.json') !== -1)
-    return 'json';
-  if (filename.indexOf('.yml') > -1 || filename.indexOf('.yaml') > -1)
-    return 'yaml';
-  if (filename.indexOf('.config.js') !== -1)
-    return 'js';
-  if (filename.indexOf('.config.cjs') !== -1)
-    return 'js';
-  if (filename.indexOf('.config.mjs') !== -1)
-    return 'mjs';
+
+  for (let extension in Common.knonwConfigFileExtensions) {
+    if (filename.indexOf(extension) !== -1) {
+      return Common.knonwConfigFileExtensions[extension];
+    }
+  }
+
   return null;
 };
 
+Common.getConfigFileCandidates = function (name) {
+  return Object.keys(Common.knonwConfigFileExtensions).map((extension) => name + extension);
+}
+
 /**
  * Parses a config file like ecosystem.config.js. Supported formats: JS, JSON, JSON5, YAML.
  * @param {string} confString  contents of the config file

test/programmatic/common.mocha.js

@@ -0,0 +1,43 @@
+var Common = require('../../lib/Common');
+var should = require('should');
+
+process.chdir(__dirname);
+
+describe('Common utilities', function () {
+  describe('Config file detection', function () {
+    var tests = [
+      { arg: "ecosystem.json", expected: "json" },
+      { arg: "ecosystem.yml", expected: "yaml" },
+      { arg: "ecosystem.yaml", expected: "yaml" },
+      { arg: "ecosystem.config.js", expected: "js" },
+      { arg: "ecosystem.config.cjs", expected: "js" },
+      { arg: "ecosystem.config.mjs", expected: "mjs" },
+    ]
+
+    tests.forEach(function (test) {
+      it('should accept configuration file ' + test.arg , function () {
+        var result = Common.isConfigFile(test.arg);
+        should(result).eql(test.expected);
+      })
+    });
+
+    it('should not accept unknown filename', function () {
+      should(Common.isConfigFile('lorem-ipsum.js')).be.null();
+    })
+  })
+
+  describe('Config file candidates', function () {
+    it('should return an array with well-known file extensions', function () {
+      var result = Common.getConfigFileCandidates('ecosystem');
+      should(result).eql([
+        'ecosystem.json',
+        'ecosystem.yml',
+        'ecosystem.yaml',
+        'ecosystem.config.js',
+        'ecosystem.config.cjs',
+        'ecosystem.config.mjs'
+      ]);
+    });
+  });
+
+})

test/unit.sh

@@ -82,6 +82,7 @@ runUnitTest $D/configuration.mocha.js
 runUnitTest $D/id.mocha.js
 runUnitTest $D/god.mocha.js
 runUnitTest $D/dump.mocha.js
+runUnitTest $D/common.mocha.js
 
 runUnitTest $D/issues/json_env_passing_4080.mocha.js