Auto-release script (tested on 0.1.21 release)

Author: ianfixes

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 ### Added
+* `release-new-version.sh` script
 
 ### Changed
 

CONTRIBUTING.md

@@ -46,16 +46,17 @@ ARDUINO_CI_SKIP_RUBY_RSPEC_TESTS=1 bundle exec rspec
 ## Packaging the Gem
 
 * Merge pull request with new features
-* `git stash save` (at least before the gem build step, but easiest here).
-* `git pull --rebase`
-* Update the sections of `CHANGELOG.md` by running `bundle exec keepachangelog_manager.rb --increment-patch`
-* Bump the version in lib/arduino_ci/version.rb and change it in README.md (since rubydoc.info doesn't always redirect to the latest version)
-* `git add README.md CHANGELOG.md lib/arduino_ci/version.rb`
-* `git commit -m "vVERSION bump"`
-* `git tag -a vVERSION -m "Released version VERSION"`
-* `gem build arduino_ci.gemspec`
-* `git stash pop`
-* `gem push arduino_ci-VERSION.gem`
-* `git push upstream`
-* `git push upstream --tags`
+* Execute `release-new-version.sh` with the appropriate argument (e.g. `--increment-patch`), which does the following:
+    * `git stash save` (at least before the gem build step, but easiest here).
+    * `git pull --rebase`
+    * Update the sections of `CHANGELOG.md` by running `bundle exec keepachangelog_manager.rb --increment-patch`
+    * Bump the version in lib/arduino_ci/version.rb and change it in README.md (since rubydoc.info doesn't always redirect to the latest version)
+    * `git add README.md CHANGELOG.md lib/arduino_ci/version.rb`
+    * `git commit -m "vVERSION bump"`
+    * `git tag -a vVERSION -m "Released version VERSION"`
+    * `gem build arduino_ci.gemspec`
+    * `git stash pop`
+    * `gem push arduino_ci-VERSION.gem`
+    * `git push upstream`
+    * `git push upstream --tags`
 * Visit http://www.rubydoc.info/gems/arduino_ci/VERSION to initiate the doc generation process

arduino_ci.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rubyzip", "~> 1.2"
 
   spec.add_development_dependency "bundler", "~> 1.15"
-  spec.add_development_dependency "keepachangelog_manager", "~> 0.0.1"
+  spec.add_development_dependency "keepachangelog_manager", "~> 0.0.2"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency 'rubocop', '~>0.59.0'
   spec.add_development_dependency 'yard', '~>0.9.11'

release-new-version.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+# This script automates the gem release project for this repo.
+
+GEM_NAME=arduino_ci
+GEM_MODULE=ArduinoCI
+PUSH_REMOTE=upstream
+
+# test if we have an arguments on the command line
+if [ $# -lt 1 ]
+then
+    echo "You must pass an argument for KeepAChangelogManager:"
+    bundle exec keepachangelog_manager.rb
+    exit 1
+fi
+
+# set up a cleanup function for any errors, so that we git stash pop
+cleanup () {
+  set +x +e
+  echo -e "\n### Reverting uncommitted changes"
+  git checkout README.md CHANGELOG.md lib/$GEM_NAME/version.rb
+  if [ $DID_STASH -eq 0 ]; then
+    echo -e "\n### Unstashing changes"
+    git stash pop
+  fi
+  exit $1
+}
+
+DIDNT_STASH="No local changes to save"
+DID_STASH=1
+echo -ne "\n### Stashing changes..."
+STASH_OUTPUT=$(git stash save)
+[ "$DIDNT_STASH" != "$STASH_OUTPUT" ]
+DID_STASH=$?
+echo DID_STASH=$DID_STASH
+
+trap "cleanup 1" INT TERM ERR
+set -xe
+
+echo "### Checking existence of specified git push destination '$PUSH_REMOTE'"
+git remote get-url $PUSH_REMOTE
+
+# ensure latest master
+git pull --rebase
+
+# update version in changelog and save it
+NEW_VERSION=$(bundle exec keepachangelog_manager.rb $@)
+
+echo "Checking whether new version string is a semver"
+echo $NEW_VERSION | grep -Eq ^[0-9]*\.[0-9]*\.[0-9]*$
+
+# write version.rb with new version
+cat << EOF > lib/$GEM_NAME/version.rb
+module $GEM_MODULE
+  VERSION = "$NEW_VERSION".freeze
+end
+EOF
+
+# update README with new version
+sed -e "s/\/gems\/$GEM_NAME\/[0-9]*\.[0-9]*\.[0-9]*)/\/gems\/$GEM_NAME\/$NEW_VERSION)/" -i "" README.md
+
+# mutation!
+git add README.md CHANGELOG.md lib/$GEM_NAME/version.rb
+git commit -m "v$NEW_VERSION bump"
+git tag -a v$NEW_VERSION -m "Released version $NEW_VERSION"
+gem build $GEM_NAME.gemspec
+gem push $GEM_NAME-$NEW_VERSION.gem
+git push $PUSH_REMOTE
+git push $PUSH_REMOTE --tags
+git fetch
+
+# do normal cleanup
+cleanup 0