fix: use Coveralls GitHub Action for coverage upload

- Replace coveralls_reborn gem with official Coveralls GitHub Action
- Simplify spec_helper.rb to always generate LCOV format
- Remove coveralls_reborn dependency from Gemfile

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: yhk1038

.github/workflows/ci.yml

@@ -74,9 +74,13 @@ jobs:
       - name: Run tests with coverage
         run: bundle exec rspec
         env:
-          CI: true
           COVERAGE: true
-          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+
+      - name: Upload coverage to Coveralls
+        uses: coverallsapp/github-action@v2
+        with:
+          file: coverage/lcov.info
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
   # VSCode 플러그인 빌드
   vscode:

Gemfile

@@ -5,7 +5,6 @@ source "https://rubygems.org"
 gemspec
 
 group :development, :test do
-  gem "coveralls_reborn", "~> 0.28.0", require: false
   gem "rake", "~> 13.0"
   gem "rspec", "~> 3.0"
   gem "rspec_junit_formatter", "~> 0.6.0"

Gemfile.lock

@@ -8,12 +8,6 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.3)
-    bigdecimal (3.3.1)
-    coveralls_reborn (0.28.0)
-      simplecov (~> 0.22.0)
-      term-ansicolor (~> 1.7)
-      thor (~> 1.2)
-      tins (~> 1.32)
     diff-lcs (1.6.2)
     docile (1.4.1)
     ffi (1.17.2)
@@ -24,7 +18,6 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    mize (0.6.1)
     parallel (1.27.0)
     parser (3.3.10.0)
       ast (~> 2.4.1)
@@ -74,14 +67,6 @@ GEM
     simplecov-html (0.13.2)
     simplecov-lcov (0.8.0)
     simplecov_json_formatter (0.1.4)
-    sync (0.5.0)
-    term-ansicolor (1.11.3)
-      tins (~> 1)
-    thor (1.4.0)
-    tins (1.48.0)
-      bigdecimal
-      mize (~> 0.6)
-      sync
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.1.0)
@@ -91,7 +76,6 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  coveralls_reborn (~> 0.28.0)
   rake (~> 13.0)
   rspec (~> 3.0)
   rspec_junit_formatter (~> 0.6.0)

editors/jetbrains/build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
 }
 
 group = "io.truby"
-version = "0.1.3"
+version = "0.1.4"
 
 repositories {
     mavenCentral()

editors/vscode/package.json

@@ -2,7 +2,7 @@
   "name": "t-ruby",
   "displayName": "T-Ruby",
   "description": "T-Ruby language support with type annotations for Ruby",
-  "version": "0.1.11",
+  "version": "0.1.12",
   "publisher": "t-ruby",
   "engines": {
     "vscode": "^1.75.0"

spec/spec_helper.rb

@@ -6,28 +6,17 @@
 # SimpleCov configuration for code coverage tracking
 if ENV["COVERAGE"]
   require "simplecov"
+  require "simplecov-lcov"
 
-  formatters = [SimpleCov::Formatter::HTMLFormatter]
-
-  # Add Coveralls formatter for CI
-  if ENV["CI"]
-    begin
-      require "simplecov-lcov"
-      require "coveralls_reborn"
-
-      SimpleCov::Formatter::LcovFormatter.config do |c|
-        c.report_with_single_file = true
-        c.single_report_path = "coverage/lcov.info"
-      end
-
-      formatters << SimpleCov::Formatter::LcovFormatter
-      formatters << Coveralls::SimpleCov::Formatter
-    rescue LoadError
-      # coveralls not available
-    end
+  SimpleCov::Formatter::LcovFormatter.config do |c|
+    c.report_with_single_file = true
+    c.single_report_path = "coverage/lcov.info"
   end
 
-  SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new(formatters)
+  SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new([
+    SimpleCov::Formatter::HTMLFormatter,
+    SimpleCov::Formatter::LcovFormatter
+  ])
 
   SimpleCov.start do
     add_filter "/spec/"