Release 3.0.0: modernize for Ruby 3.4/4.0

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [master, main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.4", "4.0"]
+    steps:
+      - uses: actions/checkout@v7
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Run tests
+        run: bundle exec rake

.gitignore

@@ -1,49 +1,21 @@
-# rcov generated
-coverage
-
-# rdoc generated
-rdoc
-
-# yard generated
-doc
-.yardoc
-
-# bundler
-.bundle
-
-# jeweler generated
-pkg
-
-# Have editor/IDE/OS specific files you need to ignore? Consider using a global gitignore: 
-#
-# * Create a file at ~/.gitignore
-# * Include files you want ignored
-# * Run: git config --global core.excludesfile ~/.gitignore
-#
-# After doing this, these files will be ignored in all your git projects,
-# saving you from having to 'pollute' every project you touch with them
-#
-# Not sure what to needs to be ignored for particular editors/OSes? Here's some ideas to get you started. (Remember, remove the leading # of the line)
-#
-# For MacOS:
-#
-#.DS_Store
-
-# For TextMate
-#*.tmproj
-#tmtags
-
-# For emacs:
-#*~
-#\#*
-#.\#*
-
-# For vim:
-#*.swp
-
-# For redcar:
-#.redcar
-
-# For rubinius:
-#*.rbc
-Gemfile.lock
+*.gem
+*.rbc
+/Gemfile.lock
+/.bundle/
+/.config
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/rdoc/
+/spec/reports/
+/tmp/
+/vendor/bundle
+.DS_Store
+.idea/
+.serena/
+.planning/
+task_plan.md
+findings.md
+progress.md

.ruby-version

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+4.0

CHANGELOG.md

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+# Changelog
+
+## 3.0.0
+
+- Require Ruby 3.4 or newer. Developed and CI-tested on Ruby 4.0.
+- Upgrade Savon to `~> 2.17` and add the `cgi` gem (removed from default gems in Ruby 4.0).
+- Call the Ideone SOAP API over HTTPS (`https://ideone.com/api/1/service.wsdl`).
+- Replace Jeweler-generated packaging with a hand-maintained gemspec.
+- Replace Travis CI with GitHub Actions (Ruby 3.4 and 4.0).
+- Use Minitest 6 and WebMock for the test suite.
+- Stop treating every Ideone error as `Ideone::AuthError`. Authentication failures still raise `AuthError`; other API errors raise `Ideone::Error`.
+- Stop mutating shared request state between calls.
+- Read credentials from `IDEONE_USER` / `IDEONE_PASSWORD` in optional live tests instead of hardcoding them.
+
+## 2.1.2
+
+- Last Jeweler-era release (2014-05-10).

Gemfile

@@ -1,12 +1,5 @@
-source "http://rubygems.org"
-# Add dependencies required to use your gem here.
-# Example:
-#   gem "activesupport", ">= 2.3.5"
-gem "savon", "~> 2.3.3"
+# frozen_string_literal: true
 
-# Add dependencies to develop your gem here.
-# Include everything needed to run rake, tests, features, etc.
-group :development do
-  gem "jeweler", "~> 2.0.1"
-  gem "test-unit", "~> 2.3"
-end
+source "https://rubygems.org"
+
+gemspec

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2011 Kenny Meyer
+Copyright (c) 2011-2026 Kenny Meyer
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

README.md

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+# ideone-ruby-api
+
+[![CI](https://github.com/kennym/ideone-ruby-api/actions/workflows/ci.yml/badge.svg)](https://github.com/kennym/ideone-ruby-api/actions/workflows/ci.yml)
+[![Gem Version](https://badge.fury.io/rb/ideone-ruby-api.svg)](https://badge.fury.io/rb/ideone-ruby-api)
+
+Ruby bindings for the [Ideone](https://ideone.com) SOAP API — an online compiler and pastebin.
+
+Requires **Ruby 3.4+**. Developed on **Ruby 4.0**.
+
+## Ideone API status
+
+The SOAP service this gem wraps is still live. The original operations
+(`testFunction`, `getLanguages`, `createSubmission`, `getSubmissionStatus`,
+`getSubmissionDetails`) still work:
+
+| | |
+|---|---|
+| WSDL | `https://ideone.com/api/1/service.wsdl` |
+| Endpoint | `https://ideone.com/api/1/service` |
+
+[Sphere Engine](https://sphere-engine.com) no longer develops this SOAP API.
+They recommend the [Compilers REST API v4](https://docs.sphere-engine.com/compilers/api/overview-version-4)
+for new products. This gem stays on Ideone SOAP so existing callers keep working.
+
+The old PDF (`http://ideone.com/files/ideone-api.pdf`) is gone.
+
+## Installation
+
+```ruby
+# Gemfile
+gem "ideone-ruby-api"
+```
+
+```bash
+gem install ideone-ruby-api
+```
+
+## Usage
+
+```ruby
+require "ideone"
+
+client = Ideone.new("username", "password")
+
+# Log SOAP traffic
+client = Ideone.new("username", "password", true)
+
+link = client.create_submission("puts 'hello, world'", 17) # 17 = Ruby
+# => "TOKEN"
+
+client.submission_status(link)
+# => { status: 0, result: 15 }
+
+client.submission_details(link)
+# => { "error" => "OK", "langName" => "Ruby", "output" => "hello, world\n", ... }
+
+client.languages
+# => { "1" => "C++ (gcc 8.3)", "17" => "Ruby (ruby 2.5.5)", "116" => "Python 3 (python 3.12)", ... }
+
+client.test
+# => { "error" => "OK", "moreHelp" => "ideone.com", "pi" => "3.14",
+#      "answerToLifeAndEverything" => "42", "oOok" => true }
+```
+
+### Language ids
+
+Call `languages` for the current list. As of 2026-09 these still match the old docs:
+
+| Id | Language |
+|---:|---|
+| 1 | C++ (gcc 8.3) |
+| 17 | Ruby (ruby 2.5.5) |
+| 116 | Python 3 (python 3.12) |
+
+### Submission status and result
+
+`submission_status` returns integers:
+
+**status** (execution stage)
+
+| Value | Meaning |
+|---:|---|
+| < 0 | waiting in queue |
+| 0 | finished |
+| 1 | compiling |
+| 3 | running |
+
+**result** (when status is 0)
+
+| Value | Meaning |
+|---:|---|
+| 11 | compilation error |
+| 12 | runtime error |
+| 13 | time limit exceeded |
+| 15 | success |
+| 17 | memory limit exceeded |
+| 19 | illegal system call |
+| 20 | internal error |
+
+Poll until `status == 0` before reading output from `submission_details`.
+
+### Errors
+
+- `Ideone::AuthError` — Ideone returned `AUTH_ERROR`
+- `Ideone::Error` — any other API or transport failure
+
+## Development
+
+```bash
+bundle install
+bundle exec rake
+```
+
+Default tests are mocked (WebMock) and do not call Ideone.
+
+```bash
+IDEONE_USER=you IDEONE_PASSWORD=secret bundle exec rake
+```
+
+CI runs on Ruby 3.4 and 4.0.
+
+## Similar projects
+
+- https://github.com/maveonair/ccpacona
+- https://github.com/jonathanperret/ideone.rb
+- https://github.com/Pistos/ideone-gem
+
+## License
+
+Copyright (c) 2011-2026 Kenny Meyer. See [LICENSE.txt](LICENSE.txt).