feat: Add hackage_upload script used by Haskell GH actions.

Author: iphydf

bin/hackage_upload

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+set -eu
+
+if [ "${1:-}" = "candidate" ]; then
+  CANDIDATE="candidate"
+  CANDIDATES="candidates"
+else
+  CANDIDATE=""
+  CANDIDATES=""
+fi
+
+cabal sdist
+PACKAGE=$(grep '^name:' *.cabal | awk '{print $2}')
+VERSION=$(grep '^version:' *.cabal | awk '{print $2}')
+curl --header "Authorization: X-ApiKey $API_TOKEN_HACKAGE" \
+  -F "package=@dist-newstyle/sdist/$PACKAGE-$VERSION.tar.gz" \
+  "https://hackage.haskell.org/packages$CANDIDATES"
+curl --header "Authorization: X-ApiKey $API_TOKEN_HACKAGE" \
+  -X PUT \
+  -H "Content-Type: application/x-tar" \
+  -H "Content-Encoding: gzip" \
+  --data-binary "@dist-newstyle/$PACKAGE-$VERSION-docs.tar.gz" \
+  "https://hackage.haskell.org/package/$PACKAGE-$VERSION$CANDIDATE/docs"