Revert upstream change to entrypoint

entrypoint.sh

@@ -1,70 +1,16 @@
 #!/bin/sh -l
-# shellcheck disable=SC2039
 
-# For Docker Image CI test job
-if [ "$REPO" = "ScottBrenner/generate-changelog-action" ]; then
-  git clone --quiet https://github.com/"$REPO"
-  cd generate-changelog-action || exit
-fi
+git clone --quiet https://github.com/$REPO &> /dev/null
 
 echo "Generating commit range for the following tag range:"
 echo $TAG_RANGE
 
 changelog=$(generate-changelog $* --tag $TAG_RANGE --file -)
 
-if [ -z "$FROM_TAG" ]; then
-  echo "No from-tag passed. Fallbacking to git previous tag."
-  previous_tag=$(git tag --sort version:refname | tail -n 2 | head -n 1)
-else
-  echo "From-tag detected. Using its value."
-  previous_tag=$FROM_TAG
-fi
-
-if [ -z "$TO_TAG" ]; then
-  echo "No to-tag passed. Fallbacking to git previous tag."
-  new_tag=$(git tag --sort version:refname | tail -n 1)
-else
-  echo "To-tag detected. Using its value."
-  new_tag=$TO_TAG
-fi
-
-if [ -z "$TYPE" ]; then
-  echo "No type passed. Fallbacking to unset."
-else
-  echo "Type detected. Using its value."
-  case $TYPE in
-    patch)
-     changelog_type="--patch"
-     ;;
-    minor)
-     changelog_type="--minor"
-     ;;
-    major)
-     changelog_type="--major"
-     ;;
-  esac
-fi
-
-if [ -z "$EXCLUDE" ]; then
-  echo "No commit types selected to exclude. Fallbacking to unset."
-else
-  echo "Commit types selected to exclude. Using its value."
-  exclude_types="--exclude $EXCLUDE"
-fi
-
-if [ -z "$ALLOW_UKNOWN" ]; then
-  echo "Unknown commit types not allowed."
-else
-  echo "Allowing unknown commit types."
-  unknown_commits="--allow-unknown "
-fi
-
-changelog=$(generate-changelog "$changelog_type" -t "$previous_tag..$new_tag" "$exclude_types" "$unknown_commits" --file -)
+echo $changelog
 
 changelog="${changelog//'%'/'%25'}"
 changelog="${changelog//$'\n'/'%0A'}"
 changelog="${changelog//$'\r'/'%0D'}"
 
-echo "$changelog"
-
 echo "::set-output name=changelog::$changelog"