hackage-doc-tarball: Allow ghc-boot-th to be uploaded to hackage

It can't refer to files outside its source directory, so patch that part out.
This is OK because those files are only used while bootstrapping.

Also add ghci to the list of packages to be uploaded

Fixes #25687

.gitlab/rel_eng/upload_ghc_libs.py

@@ -93,6 +93,11 @@ def prep_ghc():
     build_copy_file(PACKAGES['ghc'], 'GHC/Platform/Constants.hs')
     build_copy_file(PACKAGES['ghc'], 'GHC/Settings/Config.hs')
 
+def prep_ghc_boot_th():
+    # Drop ghc-internal from `hs-source-dirs` as Hackage rejects this
+    modify_file(PACKAGES['ghc-boot-th'], 'ghc-boot-th.cabal',
+                lambda s: s.replace('../ghc-internal/src', ''))
+
 PACKAGES = {
     pkg.name: pkg
     for pkg in [
@@ -105,9 +110,10 @@ PACKAGES = {
         Package('template-haskell', Path("libraries/template-haskell"), no_prep),
         Package('ghc-heap', Path("libraries/ghc-heap"), no_prep),
         Package('ghc-boot', Path("libraries/ghc-boot"), prep_ghc_boot),
-        Package('ghc-boot-th', Path("libraries/ghc-boot-th"), no_prep),
+        Package('ghc-boot-th', Path("libraries/ghc-boot-th"), prep_ghc_boot_th),
         Package('ghc-compact', Path("libraries/ghc-compact"), no_prep),
         Package('ghc', Path("compiler"), prep_ghc),
+        Package('ghci', Path("libraries/ghci"), no_prep),
     ]
 }
 # Dict[str, Package]