chore: attempt to set up Gitpod for ease of development

.envrc

@@ -0,0 +1,6 @@
+use_devbox() {
+    watch_file devbox.json
+    eval $(devbox shell --print-env)
+}
+
+# use devbox

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['2.7']
+        ruby: ['2.7.6']
 
     steps:
       - name: Checkout

.gitignore

@@ -2,13 +2,7 @@
 .DS_Store
 .bundle
 .gems
-.rbenv-version
-.ruby-*
-/.idea/
-/.rbx
-/.rvmrc
-/.yardoc/*
-/Gemfile.lock
+/out
 /coverage/*
 /dist
 /doc/*

.gitpod.Dockerfile

@@ -0,0 +1,11 @@
+FROM gitpod/workspace-full
+USER gitpod
+
+# Install Ruby version 2.7.6 and set it as default
+RUN _ruby_version=ruby-2.7.6 \
+    && printf "rvm_gems_path=/home/gitpod/.rvm\n" > ~/.rvmrc \
+    && bash -lc "rvm reinstall ${_ruby_version} && \
+                 rvm use ${_ruby_version} --default" \
+    && printf "rvm_gems_path=/workspace/.rvm" > ~/.rvmrc \
+    && printf "{ rvm use \$(rvm current); } >/dev/null 2>&1\n" >> "$HOME/.bashrc.d/70-ruby"
+

.gitpod.yml

@@ -0,0 +1,20 @@
+image:
+  file: .gitpod.Dockerfile
+
+github:
+  prebuilds:
+    develop: true
+    # enable for pull requests coming from this repo (defaults to true)
+    pullRequests: true
+
+    # add a "Review in Gitpod" button as a comment to pull requests (defaults to true)
+    addComment: true
+
+    # add a "Review in Gitpod" button to pull requests (defaults to false)
+    addBadge: true
+
+    # add a label once the prebuild is ready to pull requests (defaults to false)
+    addLabel: prebuilt-in-gitpod
+
+tasks:
+  - init: bundle install

.ruby-version

@@ -0,0 +1 @@
+2.7.6

Gemfile

@@ -1,9 +1,9 @@
 source 'https://rubygems.org'
 
-ruby '>= 2.4.0'
+ruby '>= 2.7.6'
 
 gem 'activerecord', '>= 4.2.5', '< 6', require: false
-gem 'rake', require: false
+gem 'rake', '>= 13.0.6'
 
 group :development do
   gem 'bump'