Merge pull request #6222 from commercialhaskell/fix5639

Fix #5639 Backport efficient ghc-pkg unregister

.hlint.yaml

@@ -74,6 +74,7 @@
   # Stack's code generally avoids the use of C preprocessor (CPP) directives.
   - name: CPP
     within:
+    - GHC.Utils.GhcPkg.Main.Compat
     - Stack.BuildInfo
     - Stack.Constants
   # The following list provides an inventory of the small number of modules
@@ -91,6 +92,14 @@
     name:
     - CPP
     - PackageImports
+  # GHC.Utils.GhcPkg.Main.Compat's code largely comes from the GHC repository.
+  - within: GHC.Utils.GhcPkg.Main.Compat
+    name:
+    - FlexibleInstances
+    - KindSignatures
+    - MultiParamTypeClasses
+    - ScopedTypeVariables
+    - TupleSections
 
 # Not considered useful hints
 - ignore:

doc/maintainers/stack_errors.md

@@ -5,7 +5,18 @@
 In connection with considering Stack's support of the
 [Haskell Error Index](https://errors.haskell.org/) initiative, this page seeks
 to take stock of the errors that Stack itself can raise, by reference to the
-`master` branch of the Stack repository. Last updated: 2023-07-24.
+`master` branch of the Stack repository. Last updated: 2023-09-02.
+
+*   `GHC.GHC.Utils.GhcPkg.Main.Compat`
+
+    ~~~haskell
+    [S-6512] = CannotParse String String String
+    [S-3384] | CannotOpenDBForModification FilePath IOException
+    [S-1430] | SingleFileDBUnsupported FilePath
+    [S-5996] | ParsePackageInfoExceptions String
+    [S-3189] | CannotFindPackage PackageArg (Maybe FilePath)
+
+    ~~~
 
 *   `Stack.main`: catches exceptions from action `commandLineHandler`.
 
@@ -122,6 +133,10 @@ to take stock of the errors that Stack itself can raise, by reference to the
         [S-2483] | ExecutableToRunNotFound
         ~~~
 
+    -   `Stack.GhcPkg`
+
+        `[S-6716]` used in `unregisterGhcPkgIds`
+
     -   `Stack.Ghci.GhciException`
 
         ~~~haskell

package.yaml

@@ -82,6 +82,7 @@ dependencies:
 - filepath
 - fsnotify >= 0.4.1
 - generic-deriving
+- ghc-boot
 - hi-file-parser >= 0.1.4.0
 - hpack >= 0.35.3
 - hpc
@@ -110,7 +111,7 @@ dependencies:
 - project-template
 - random
 - rio >= 0.1.22.0
-- rio-prettyprint >= 0.1.4.0
+- rio-prettyprint >= 0.1.5.0
 - split
 - stm
 - tar