Set the index-state for hackage only

.github/actions/setup-build/action.yml

@@ -66,10 +66,10 @@ runs:
 
     - name: Retrieving `cabal.project` Hackage timestamp
       run: |
-        # Form: index-state: 2021-11-29T08:11:08Z
-        INDEX_STATE_ENTRY=$(grep index-state cabal.project)
+        # Form: index-state: repository 2021-11-29T08:11:08Z
+        INDEX_STATE_ENTRY=$(grep "index-state:" cabal.project)
         # Form: 2021-11-29T08-11-08Z
-        INDEX_STATE1=$(echo "$INDEX_STATE_ENTRY" | cut -d' ' -f2 | tr ':' '-')
+        INDEX_STATE1=$(echo "$INDEX_STATE_ENTRY" | cut -d' ' -f3 | tr ':' '-')
         echo "INDEX_STATE=$INDEX_STATE1" >> $GITHUB_ENV
       shell: bash
 

cabal.project

@@ -34,7 +34,12 @@ packages:
          ./plugins/hls-refactor-plugin
          ./plugins/hls-overloaded-record-dot-plugin
 
-index-state: 2023-10-06T06:12:29Z
+-- head.hackage does not support index-state
+-- (https://gitlab.haskell.org/ghc/head.hackage/-/issues/53)
+-- Setting the index-state for head.hackage can result in
+-- issues, e.g. https://github.com/haskell/haskell-language-server/issues/3861
+-- so we only set it for hackage.
+index-state: hackage.haskell.org 2023-11-14T00:00:00Z
 
 tests: True
 test-show-details: direct

ghcide/ghcide.cabal

@@ -63,7 +63,7 @@ library
         enummapset,
         filepath,
         fingertree,
-        focus,
+        focus >= 1.0.3.2,
         ghc-trace-events,
         Glob,
         haddock-library >= 1.8 && < 1.12,