Adding initial coding style checking

.editorconfig

@@ -0,0 +1,29 @@
+# http://editorconfig.org/
+
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.go]
+indent_style = tab
+
+[*.{js,jsx,json,html}]
+indent_style = space
+indent_size = 4
+
+[{package.json,.eslintrc.json}]
+indent_size = 2
+
+[i18n/**.json]
+indent_size = 2
+
+[Makefile]
+indent_style = tab
+
+[*.scss]
+indent_style = space
+indent_size = 4

.eslintrc.json

@@ -0,0 +1,196 @@
+{
+  "extends": [
+    "plugin:mattermost/react",
+    "plugin:cypress/recommended",
+    "plugin:jquery/deprecated"
+  ],
+  "plugins": [
+    "babel",
+    "mattermost",
+    "import",
+    "cypress",
+    "jquery",
+    "no-only-tests"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "env": {
+    "jest": true,
+    "cypress/globals": true
+  },
+  "settings": {
+    "import/resolver": "webpack",
+    "react": {
+        "pragma": "React",
+        "version": "detect"
+    }
+  },
+  "rules": {
+    "no-unused-expressions": 0,
+    "babel/no-unused-expressions": 2,
+    "eol-last": ["error", "always"],
+    "import/no-unresolved": 2,
+    "import/order": [
+      2,
+      {
+        "newlines-between": "always-and-inside-groups",
+        "groups": [
+          "builtin",
+          "external",
+          [
+            "internal",
+            "parent"
+          ],
+          "sibling",
+          "index"
+        ]
+      }
+    ],
+    "no-undefined": 0,
+    "react/jsx-filename-extension": 0,
+    "react/prop-types": [
+      2,
+      {
+        "ignore": [
+          "location",
+          "history",
+          "component"
+        ]
+      }
+    ],
+    "react/no-string-refs": 2,
+    "no-only-tests/no-only-tests": ["error", {"focus": ["only", "skip"]}]
+  },
+  "overrides": [
+    {
+      "files": ["**/*.tsx", "**/*.ts"],
+      "extends": [
+        "plugin:@typescript-eslint/recommended"
+      ],
+      "rules": {
+        "import/no-unresolved": 0, // ts handles this better
+        "camelcase": 0,
+        "@typescript-eslint/naming-convention": [
+          2,
+          {
+            "selector": "function",
+            "format": ["camelCase", "PascalCase"]
+          },
+          {
+            "selector": "variable",
+            "format": ["camelCase", "PascalCase", "UPPER_CASE"]
+          },
+          {
+            "selector": "parameter",
+            "format": ["camelCase", "PascalCase"],
+            "leadingUnderscore": "allow"
+          },
+          {
+            "selector": "typeLike",
+            "format": ["PascalCase"]
+          }
+        ],
+        "@typescript-eslint/no-non-null-assertion": 0,
+        "@typescript-eslint/no-unused-vars": [
+          2,
+          {
+            "vars": "all",
+            "args": "after-used"
+          }
+        ],
+        "@typescript-eslint/no-var-requires": 0,
+        "@typescript-eslint/no-empty-function": 0,
+        "@typescript-eslint/prefer-interface": 0,
+        "@typescript-eslint/explicit-function-return-type": 0,
+        "@typescript-eslint/indent": [
+          2,
+          4,
+          {
+            "SwitchCase": 0
+          }
+        ],
+        "@typescript-eslint/no-use-before-define": [
+          2,
+          {
+            "classes": false,
+            "functions": false,
+            "variables": false
+          }
+        ],
+        "react/jsx-filename-extension": 0
+      }
+    },
+    {
+      "files": ["tests/**", "**/*.test.*"],
+      "env": {
+        "jest": true
+      },
+      "rules": {
+        "func-names": 0,
+        "global-require": 0,
+        "new-cap": 0,
+        "prefer-arrow-callback": 0,
+        "no-import-assign": 0
+      }
+    },
+    {
+      "files": ["e2e/**"],
+      "rules": {
+        "func-names": 0,
+        "import/no-unresolved": 0,
+        "max-nested-callbacks": 0,
+        "no-process-env": 0,
+        "babel/no-unused-expressions": 0,
+        "no-unused-expressions": 0,
+        "jquery/no-ajax": 0,
+        "jquery/no-ajax-events": 0,
+        "jquery/no-animate": 0,
+        "jquery/no-attr": 0,
+        "jquery/no-bind": 0,
+        "jquery/no-class": 0,
+        "jquery/no-clone": 0,
+        "jquery/no-closest": 0,
+        "jquery/no-css": 0,
+        "jquery/no-data": 0,
+        "jquery/no-deferred": 0,
+        "jquery/no-delegate": 0,
+        "jquery/no-each": 0,
+        "jquery/no-extend": 0,
+        "jquery/no-fade": 0,
+        "jquery/no-filter": 0,
+        "jquery/no-find": 0,
+        "jquery/no-global-eval": 0,
+        "jquery/no-grep": 0,
+        "jquery/no-has": 0,
+        "jquery/no-hide": 0,
+        "jquery/no-html": 0,
+        "jquery/no-in-array": 0,
+        "jquery/no-is-array": 0,
+        "jquery/no-is-function": 0,
+        "jquery/no-is": 0,
+        "jquery/no-load": 0,
+        "jquery/no-map": 0,
+        "jquery/no-merge": 0,
+        "jquery/no-param": 0,
+        "jquery/no-parent": 0,
+        "jquery/no-parents": 0,
+        "jquery/no-parse-html": 0,
+        "jquery/no-prop": 0,
+        "jquery/no-proxy": 0,
+        "jquery/no-ready": 0,
+        "jquery/no-serialize": 0,
+        "jquery/no-show": 0,
+        "jquery/no-size": 0,
+        "jquery/no-sizzle": 0,
+        "jquery/no-slide": 0,
+        "jquery/no-submit": 0,
+        "jquery/no-text": 0,
+        "jquery/no-toggle": 0,
+        "jquery/no-trigger": 0,
+        "jquery/no-trim": 0,
+        "jquery/no-val": 0,
+        "jquery/no-when": 0,
+        "jquery/no-wrap": 0
+      }
+    }
+  ]
+}

.gitignore

@@ -36,3 +36,4 @@ debug
 __debug_bin
 files
 octo*.db
+.eslintcache