build: don't deprecate ruby2.7 & faraday < 1

.github/workflows/rspec.yml

@@ -15,12 +15,22 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: ['3.0', '3.1', '3.2', '3.3']
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3']
         gemfile:
           [
             'gemfiles/faraday1.gemfile',
             'gemfiles/faraday2.gemfile',
           ]
+        # Faraday 0.x with Ruby 3.x not supported
+        exclude:
+          - ruby: '3.0'
+            gemfile: gemfiles/faraday0.gemfile
+          - ruby: '3.1'
+            gemfile: gemfiles/faraday0.gemfile
+          - ruby: '3.2'
+            gemfile: gemfiles/faraday0.gemfile
+          - ruby: '3.3'
+            gemfile: gemfiles/faraday0.gemfile
     runs-on: ${{ matrix.os }}
     env: # $BUNDLE_GEMFILE must be set at the job level, so it is set for all steps
       BUNDLE_GEMFILE: ${{ github.workspace }}/${{ matrix.gemfile }}

Appraisals

@@ -1,5 +1,10 @@
 # frozen_string_literal: true
 
+appraise 'faraday0' do
+  gem 'faraday', '< 1.0'
+  gem 'faraday_middleware', '< 1'
+end
+
 appraise 'faraday1' do
   gem 'faraday', '= 1.0'
   gem 'faraday_middleware', '< 2'

bin/setup

@@ -4,7 +4,4 @@ IFS=$'\n\t'
 set -vx
 
 bundle install
-
-for filename in gemfiles/*.gemfile; do
-  BUNDLE_GEMFILE=$filename bundle install
-done
+bundle exec appraisal install

gemfiles/faraday0.gemfile

@@ -0,0 +1,16 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal", git: "https://github.com/thoughtbot/appraisal.git"
+gem "pry"
+gem "rake"
+gem "rspec"
+gem "rubocop"
+gem "rubocop-performance"
+gem "rubocop-rake"
+gem "rubocop-rspec"
+gem "faraday", "< 1.0"
+gem "faraday_middleware", "< 1"
+
+gemspec path: "../"