Problem: ruby client can't form-encode PUT requests

Solution: switch ruby client to use Faraday

This patch relies on a forked version of the openapi-generator-cli. Once the PR that
introduces this functionality is merged into openapi-generator, the ruby client
generation should be switched back to using the docker container for openapi-generator.

OpenAPITools/openapi-generator#3405

re: #4896
https://pulp.plan.io/issues/4896

.travis/install.sh

@@ -18,7 +18,8 @@ if [ -n "$PULP_PR_NUMBER" ]; then
 fi
 
 pip install -e ./pulpcore[postgres]
-cp ./pulpcore/.travis/test_bindings.py $TRAVIS_BUILD_DIR/
+cp ./pulpcore/.travis/test_bindings.py $TRAVIS_BUILD_DIR/.travis/
+cp ./pulpcore/.travis/test_bindings.rb $TRAVIS_BUILD_DIR/.travis/
 
 git clone https://github.com/pulp/pulpcore-plugin.git
 

.travis/script.sh

@@ -25,7 +25,7 @@ pip install ./pulpcore-client
 pip install ./pulp_file-client
 
 python test_bindings.py
-
+ruby test_bindings.rb
 # Travis' scripts use unbound variables. This is problematic, because the
 # changes made to this script's environment appear to persist when Travis'
 # scripts execute. Perhaps this script is sourced by Travis? Regardless of why,

generate.sh

@@ -30,13 +30,15 @@ then
 fi
 if [ $2 = 'ruby' ]
 then
-    docker run -u $(id -u) --rm -v ${PWD}:/local openapitools/openapi-generator-cli:v4.0.0 generate \
-        -i /local/api.json \
+    curl -o openapi-generator-cli.jar https://repos.fedorapeople.org/pulp/pulp/openapi/openapi-generator-cli.jar
+    java -jar openapi-generator-cli.jar generate \
+        -i api.json \
         -g ruby \
-        -o /local/$1-client \
+        -o $1-client \
         -DgemName=$1_client \
-        -DgemLicense="GPLv2" \
+        -DgemLicense="GPL-2.0" \
         -DgemVersion=${VERSION} \
+        -Dlibrary=faraday \
         --skip-validate-spec \
         --strict-spec=false
 fi