Add instructions for setting up vscode integration

README.md

@@ -52,3 +52,17 @@ e.g.:
 * `RUBYFMT_DISABLE_SZUSH=1`: disables the backend render queue writer,
   very useful for debugging, literally useless if you're not developing rubyfmt
   itself.
+
+## Editor Support
+
+### Visual Studio Code
+
+Rubyfmt is a supported formatter in the popular [vscode ruby extension](https://marketplace.visualstudio.com/items?itemName=rebornix.Ruby).  After installing the extension and following the instructions above to ensure `rubyfmt` is available in your shell's `PATH`, add the following to vscode's `settings.json` file:
+
+``` json
+  "ruby.useLanguageServer": true,
+  "ruby.format": "rubyfmt",
+  "[ruby]": {
+      "editor.formatOnSave": true
+  },
+```

script/install_shim.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+if [ $# -eq 0 ]
+  then
+    echo "Please pass a file location to install the shim script"
+    exit 1
+fi
+
+echo "#!/usr/bin/env bash
+export RUBYFMT_USE_RELEASE=1
+$(which ruby) --disable=all $(pwd)/rubyfmt.rb \$@" > $1
+chmod +x $1

script/tests/test_cli_interface.sh

@@ -16,6 +16,19 @@ test_single_file_stdout() {
     )
 }
 
+test_stdin_stdout() {
+    (
+    cd "$(mktemp -d)"
+
+    echo "a 1,2,3" > a_ruby_file.rb
+    echo "a(1, 2, 3)" > expected.rb
+
+    cat a_ruby_file.rb | f_rubyfmt > out.rb
+
+    diff_files out.rb expected.rb
+    )
+}
+
 test_dir_no_i_flag() {
     (
     cd "$(mktemp -d)"
@@ -59,5 +72,6 @@ test_i_flag() {
 }
 
 test_single_file_stdout
+test_stdin_stdout
 test_dir_no_i_flag
 test_i_flag