refactor: replace api.yml with copy downloaded from openapi repo (#43)

etc/generate-openapi.sh

@@ -4,6 +4,12 @@ declare -r ETC_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &> /dev/null && pwd)"
 declare -r ROOT_DIR="$(dirname ${ETC_DIR})"
 
 declare -r GENERATOR_DOCKER_IMG=openapitools/openapi-generator-cli:v5.1.0
+declare -r OPENAPI_COMMIT=5ab3ef0b9a6aee68b3b34e1858ca6d55c153650a
+
+# Download our target API spec.
+# NOTE: openapi-generator supports HTTP references to API docs, but using that feature
+# causes the host of the URL to be injected into the base paths of generated code.
+curl -o ${ROOT_DIR}/internal/api/cli.yml https://raw.githubusercontent.com/influxdata/openapi/${OPENAPI_COMMIT}/contracts/cli.yml
 
 # Run the generator - This produces many more files than we want to track in git.
 docker run --rm -it -u "$(id -u):$(id -g)" \
@@ -11,7 +17,7 @@ docker run --rm -it -u "$(id -u):$(id -g)" \
   ${GENERATOR_DOCKER_IMG} \
   generate \
   -g go \
-  -i /influx/internal/api/api.yml \
+  -i /influx/internal/api/cli.yml \
   -o /influx/internal/api \
   -t /influx/internal/api/templates \
   --additional-properties packageName=api,enumClassPrefix=true,generateInterfaces=true