infrastructure: 🛠️ add VS Code support

Author: maxbarsukov

.gitignore

@@ -38,7 +38,8 @@ fp_lab3-*.tar
 .vscode/
 .code-workspace
 !.vscode/launch.json
-!.vscode/tasks.json
+!.vscode/settings.json
+!.vscode/extensions.json
 
 ### Log files ###
 *.log

.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+  "recommendations": [
+    "JakeBecker.elixir-ls",
+    "samuel-pordeus.elixir-test",
+    "pantajoe.vscode-elixir-credo"
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,23 @@
+{
+  "[elixir]": {
+    // Based on Elixir formatter's style
+    "editor.insertSpaces": true,
+    // Note: While it is possible to override this in your VSCode configuration, the Elixir Formatter
+    // does not support a configurable tab size, so if you override this then you should not use the
+    // formatter.
+    "editor.tabSize": 2,
+    "files.trimTrailingWhitespace": true,
+    "files.insertFinalNewline": true,
+    "files.trimFinalNewlines": true,
+
+    // Provides smart completion for "do" and "fn ->" blocks. Does not run the Elixir formatter.
+    "editor.formatOnType": true,
+
+    // Misc
+    "editor.wordBasedSuggestions": "off",
+    "editor.trimAutoWhitespace": false
+  },
+  "[json]": {
+    "editor.tabSize": 2
+  }
+}