From 8f0da09d7a139903d4dcb0d4ba77460030de5431 Mon Sep 17 00:00:00 2001
From: sorki <srk@48.io>
Date: Sun, 31 Dec 2023 18:28:53 +0100
Subject: [PATCH] Port to hnix-0.17

---
 cabal.project                    |  2 +-
 src/Nix/Comments.hs              |  4 ++--
 src/Update/Nix/FetchGit/Utils.hs |  6 +++---
 src/Update/Span.hs               | 20 ++++++++++++--------
 update-nix-fetchgit.cabal        |  2 +-
 5 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/cabal.project b/cabal.project
index 9683d41..624427a 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,3 +1,3 @@
 packages:             ./*.cabal
 optimization:         2
-allow-newer:          all:base, all:ghc-prim, hnix:template-haskell
+allow-newer:          all:base, all:ghc-prim, hnix:template-haskell, lens-family-th:template-haskell
diff --git a/src/Nix/Comments.hs b/src/Nix/Comments.hs
index b31983f..808ddfc 100644
--- a/src/Nix/Comments.hs
+++ b/src/Nix/Comments.hs
@@ -46,8 +46,8 @@ annotateWithComments sourceLines = go
 
     go' :: NExprLocF f -> NExprCommentsF f
     go' e =
-      let comment = case spanEnd . annotation . getCompose $ e of
-            SourcePos _ line col -> do
+      let comment = case getSpanEnd . annotation . getCompose $ e of
+            NSourcePos _ (NPos line) (NPos col) -> do
               theLine <- sourceLines !? (unPos line - 1)
               theLineAfterExpression <- dropMaybe (unPos col - 1) theLine
               let theLineAfterCruft =
diff --git a/src/Update/Nix/FetchGit/Utils.hs b/src/Update/Nix/FetchGit/Utils.hs
index c05c946..562ee21 100644
--- a/src/Update/Nix/FetchGit/Utils.hs
+++ b/src/Update/Nix/FetchGit/Utils.hs
@@ -145,11 +145,11 @@ formatWarning (DuplicateAttrs attrName) =
   "Error: The \"" <> attrName <> "\" attribute appears twice in a set."
 formatWarning (NotAString expr) =
   "Error: The expression at "
-    <> (T.pack . prettyPrintSourcePos . spanBegin . exprSpan) expr
+    <> (T.pack . prettyPrintSourcePos . getSpanBegin . exprSpan) expr
     <> " is not a string literal."
 formatWarning (NotABool expr) =
   "Error: The expression at "
-    <> (T.pack . prettyPrintSourcePos . spanBegin . exprSpan) expr
+    <> (T.pack . prettyPrintSourcePos . getSpanBegin . exprSpan) expr
     <> " is not a boolean literal."
 formatWarning (NixPrefetchGitFailed exitCode errorOutput) =
   "Error: nix-prefetch-git failed with exit code "
@@ -185,7 +185,7 @@ tShow = T.pack . show
 
 containsPosition :: NExprLoc -> (Int, Int) -> Bool
 containsPosition (Fix (Compose (AnnUnit (SrcSpan begin end) _))) p =
-  let unSourcePos (SourcePos _ l c) = (unPos l, unPos c)
+  let unSourcePos (NSourcePos _ (NPos l) (NPos c)) = (unPos l, unPos c)
    in p >= unSourcePos begin && p < unSourcePos end
 
 ----------------------------------------------------------------
diff --git a/src/Update/Span.hs b/src/Update/Span.hs
index 9eacd67..53a0c33 100644
--- a/src/Update/Span.hs
+++ b/src/Update/Span.hs
@@ -6,7 +6,7 @@
 module Update.Span
   ( SpanUpdate(..)
   , SrcSpan(..)
-  , SourcePos(..)
+  , NSourcePos(..)
   , updateSpan
   , updateSpans
   , linearizeSourcePos
@@ -25,7 +25,11 @@ import           Data.Text                      ( Text
                                                 , lines
                                                 , splitAt
                                                 )
-import           Nix.Expr.Types.Annotated
+import           Nix.Expr.Types                 ( NPos(..)
+                                                , NSourcePos(..)
+                                                , unPos
+                                                )
+import           Nix.Expr.Types.Annotated       ( SrcSpan(..) )
 import           Prelude                 hiding ( length
                                                 , lines
                                                 , splitAt
@@ -42,7 +46,7 @@ data SpanUpdate = SpanUpdate
 -- | Update many spans in a file. They must be non-overlapping.
 updateSpans :: [SpanUpdate] -> Text -> Text
 updateSpans us t =
-  let sortedSpans = sortOn (spanBegin . spanUpdateSpan) us
+  let sortedSpans = sortOn (getSpanBegin . spanUpdateSpan) us
       anyOverlap =
         any (uncurry overlaps) (zip <*> tail $ spanUpdateSpan <$> sortedSpans)
   in  assert (not anyOverlap) (foldr updateSpan t sortedSpans)
@@ -60,9 +64,9 @@ overlaps :: SrcSpan -> SrcSpan -> Bool
 overlaps (SrcSpan b1 e1) (SrcSpan b2 e2) =
   b2 >= b1 && b2 < e1 || e2 >= b1 && e2 < e1
 
--- | Split some text at a particular 'SourcePos'
-split :: SourcePos -> Text -> (Text, Text)
-split (SourcePos _ row col) t = splitAt
+-- | Split some text at a particular 'NSourcePos'
+split :: NSourcePos -> Text -> (Text, Text)
+split (NSourcePos _ (NPos row) (NPos col)) t = splitAt
   (fromIntegral
     (linearizeSourcePos t
                         (fromIntegral (unPos row - 1))
@@ -84,6 +88,6 @@ linearizeSourcePos t l c = fromIntegral lineCharOffset + c
  where
   lineCharOffset = sum . fmap ((+ 1) . length) . genericTake l . lines $ t
 
-prettyPrintSourcePos :: SourcePos -> String
-prettyPrintSourcePos (SourcePos _ row column) =
+prettyPrintSourcePos :: NSourcePos -> String
+prettyPrintSourcePos (NSourcePos _ (NPos row) (NPos column)) =
   show (unPos row) <> ":" <> show (unPos column)
diff --git a/update-nix-fetchgit.cabal b/update-nix-fetchgit.cabal
index 8552cb7..ce0df1a 100644
--- a/update-nix-fetchgit.cabal
+++ b/update-nix-fetchgit.cabal
@@ -108,7 +108,7 @@ library
     , bytestring >=0.10
     , data-fix
     , github-rest >=1.1
-    , hnix ==0.16.*
+    , hnix >=0.17 && <0.18
     , monad-validate
     , mtl
     , process >=1.2