feat: drop support for ruby <3.0 (#210)

Author: akerekes

.github/workflows/conformance.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['2.6', '2.7', '3.0', '3.1', '3.2', '3.3']
+        ruby: ['3.0', '3.1', '3.2', '3.3']
     steps:
     - name: Harden Runner
       uses: step-security/harden-runner@cb605e52c26070c328afc4562f0b4ada7618a84e # v2.10.4
@@ -71,4 +71,4 @@ jobs:
         useBuildpacks: false
         validateConcurrency: true
         cmd: "'bundle exec functions-framework-ruby --source test/conformance/app.rb --target concurrent_http_func --signature-type http'"
-    
+    

.github/workflows/unit.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        ruby: ['2.6', '2.7', '3.0', '3.1', '3.2', '3.3']
+        ruby: ['3.0', '3.1', '3.2', '3.3']
         flags: ["--only --test-unit"]
         include:
           - os: ubuntu-latest

Gemfile

@@ -16,7 +16,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.26.3"
+gem "google-style", "~> 1.30.1"
 gem "minitest", "~> 5.16"
 gem "minitest-focus", "~> 1.2"
 gem "minitest-rg", "~> 5.2"

README.md

@@ -41,7 +41,7 @@ requiring an HTTP server or complicated request handling logic.
 
 ## Supported Ruby versions
 
-This library is supported on Ruby 2.6+.
+This library is supported on Ruby 3.0+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or

docs/deploying-functions.md

@@ -30,9 +30,9 @@ Google Cloud Functions is Google's scalable pay-as-you-go Functions-as-a-Service
 Functions Framework is designed especially for functions that can be hosted on
 Cloud Functions.
 
-You can run Ruby functions on Google Cloud Functions by selecting the `ruby26`
-runtime or `ruby27` runtime to use a recent release of Ruby 2.6 or Ruby 2.7.
-Support for Ruby 3.0 is forthcoming.
+You can run Ruby functions on Google Cloud Functions by selecting the `ruby32`
+runtime or `ruby33` runtime to use a recent release of Ruby 3.2 or Ruby 3.3.
+Support for Ruby 3.4 is forthcoming.
 
 ### Deploying and updating your function
 
@@ -60,7 +60,7 @@ Then, issue the gcloud command to deploy:
 ```sh
 gcloud functions deploy $YOUR_FUNCTION_NAME \
     --project=$YOUR_PROJECT_ID \
-    --runtime=ruby27 \
+    --runtime=ruby33 \
     --trigger-http \
     --entry-point=$YOUR_FUNCTION_TARGET
 ```
@@ -86,7 +86,7 @@ and above, set `FUNCTION_LOGGING_LEVEL` to `WARN` when deploying:
 
 ```sh
 gcloud functions deploy $YOUR_FUNCTION_NAME --project=$YOUR_PROJECT_ID \
-  --runtime=ruby27 --trigger-http --source=$YOUR_FUNCTION_SOURCE \
+  --runtime=ruby33 --trigger-http --source=$YOUR_FUNCTION_SOURCE \
   --entry-point=$YOUR_FUNCTION_TARGET \
   --set-env-vars=FUNCTION_LOGGING_LEVEL=WARN
 ```
@@ -121,7 +121,7 @@ Dockerfile that you can use as a starting point. Feel free to adjust it to the
 needs of your project:
 
 ```
-FROM ruby:2.7
+FROM ruby:3.3
 WORKDIR /app
 COPY . .
 RUN gem install --no-document bundler \
@@ -147,8 +147,8 @@ command may ask you for permission to enable the Cloud Build API for the project
 if it isn't already enabled.
 
 Because you provide your own Docker image when deploying to Cloud Run, you can
-use any version of Ruby supported by the Functions Framework, from 2.6 through
-3.1.
+use any version of Ruby supported by the Functions Framework, from 3.0 through
+3.3.
 
 ### Deploying an image to Cloud Run
 

docs/overview.md

@@ -46,7 +46,7 @@ requiring an HTTP server or complicated request handling logic.
 
 ## Supported Ruby versions
 
-This library is supported on Ruby 2.6+.
+This library is supported on Ruby 3.0+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or

functions_framework.gemspec

@@ -44,7 +44,7 @@ version = ::FunctionsFramework::VERSION
   spec.bindir = "bin"
   spec.executables = ["functions-framework", "functions-framework-ruby"]
 
-  spec.required_ruby_version = ">= 2.6.0"
+  spec.required_ruby_version = ">= 3.0.0"
   spec.add_dependency "cloud_events", ">= 0.7.0", "< 2.a"
   spec.add_dependency "puma", ">= 4.3.0", "< 7.a"
   spec.add_dependency "rack", ">= 2.1", "< 4.a"