generate link, where we have all the required information

this way `update_version.sh` and `gitlab_release.sh` can't easily diverge form another and `release_helper.sh`

ci/gitlab_release.sh

@@ -16,7 +16,7 @@ for index in ${!LOCAL_FILE_NAMES[*]}; do
 {
   "name":     "${UPLOAD_FILE_NAMES[$index]}",
   "url":      "${PACKAGE_REGISTRY_URL}/${UPLOAD_FILE_NAMES[$index]}",
-  "filepath": "/other/${UPLOAD_FILE_NAMES[$index]}"
+  "filepath": "${UPLOAD_FILE_PATH[$index]}"
 }
 ENTRY
   )"

ci/release_helper.sh

@@ -81,4 +81,18 @@ function release_helper_init() {
     "${full_name}-manual.pdf"
   )
 
+  # for now place all files under other
+  for index in ${!UPLOAD_FILE_NAMES[*]} ; do
+    UPLOAD_FILE_PATH[$index]="/other/${UPLOAD_FILE_NAMES[$index]}"
+  done
+
+  DOWNLOAD_URL="${CI_PROJECT_URL}/-/releases/${release_tag}/downloads"
+
+  # these variables are used by update_version.sh when doing a release
+  # for the download links on curry-lang.org
+  # these urls are meaningless for nightly releases
+  src_download="${DOWNLOAD_URL}${UPLOAD_FILE_PATH[0]}"
+  arch_download="${DOWNLOAD_URL}${UPLOAD_FILE_PATH[1]}"
+  manual_download="${DOWNLOAD_URL}${UPLOAD_FILE_PATH[2]}"
+
 }

ci/update_version.sh

@@ -80,8 +80,6 @@ function release() {
 
   release_helper_init release
 
-  DOWNLOAD_URL="https://git.ps.informatik.uni-kiel.de/curry/pakcs/-/releases/${release_tag}/downloads/other"
-
   # replace the latest.version file
   install -D /dev/stdin "${LATEST_FILE}" <<LATEST_VERSION
 ---
@@ -89,9 +87,9 @@ function release() {
 # MANUAL CHANGES TO THIS FILE WILL GET LOST ON THE NEXT RELEASE RUN
 date: ${BUILD_DATE}
 version: Latest
-source: ${DOWNLOAD_URL}/pakcs-${VERSION}-src.tar.gz
-linux:  ${DOWNLOAD_URL}/pakcs-${VERSION}-amd64-Linux.tar.gz
-manual: ${DOWNLOAD_URL}/pakcs-${VERSION}-manual.pdf
+source: ${src_download}
+linux:  ${arch_download}
+manual: ${manual_download}
 commit_sha: ${CI_COMMIT_SHA}
 commit_short_sha: ${CI_COMMIT_SHORT_SHA}
 ci_job: ${CI_JOB_ID}