Removing previous releases in order to upload new one

upload-binaries.sh

@@ -34,6 +34,23 @@ fi
 
 if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then
 if [ "$TRAVIS_BRANCH" == "releasing-master" ]; then
+
+  # get info about all releases
+  echo -e "Getting info about previous releases"
+  curl -X GET -H "Authorization: token ${GH_TOKEN}" \
+       "https://api.github.com/repos/WagicProject/wagic/releases" > json.txt
+
+  # extract info only about only "latest-release" tag
+  cat json.txt |jq  'map(select (.tag_name == "latest-master"))' > latest.txt
+
+  # get id of release
+  ID_TO_DELETE=`cat latest.txt |jq '.[0].id'`
+
+  # delete previous release
+  echo -e "Deleting release number ${ID_TO_DELETE}"
+  curl -X DELETE -H "Authorization: token ${GH_TOKEN}" \
+     "https://api.github.com/repos/WagicProject/wagic/releases/${ID_TO_DELETE}"
+
   echo -e "Creating a release\n"
   curl -X POST -H "Authorization: token ${GH_TOKEN}" \
       -d '{"tag_name": "latest-master", "target_commitish": "master", "name": "Master branch release number '${TRAVIS_BUILD_NUMBER}'", "body": "Automatic release on master branch generated by Travis CI", "draft": false, "prerelease": true}' "https://api.github.com/repos/WagicProject/wagic/releases" > json.txt