[ANE-2523] NuGet: analyze every .csproj in a directory

PackageReference discovery used `find isPackageRefFile` which returned
only the first match. Sibling project files in the same directory were
silently dropped. Switch to `filter` so each .csproj/.xproj/.vbproj/
.dbproj/.fsproj yields its own NuGetProject.

Author: zlav

Changelog.md

@@ -4,6 +4,7 @@
 
 - Config: `paths.only` and `paths.exclude` in `.fossa.yml` now accept glob patterns. ([#1703](https://github.com/fossas/fossa-cli/pull/1703))
 - Licensing - Fix two bad GPL matches [No PR]
+- NuGet: PackageReference discovery now analyzes every `.csproj`/`.xproj`/`.vbproj`/`.dbproj`/`.fsproj` in a directory. Previously only the first match returned by the directory listing was analyzed, so sibling project files were silently dropped.
 
 
 ## 3.17.5

spectrometer.cabal

@@ -692,6 +692,7 @@ test-suite unit-tests
     Node.PackageLockSpec
     Node.PackageLockV3Spec
     NuGet.DirectoryPackagesPropsSpec
+    NuGet.NuGetSpec
     NuGet.NuspecSpec
     NuGet.PackageReferenceSpec
     NuGet.PackagesConfigSpec

src/Strategy/NuGet.hs

@@ -16,7 +16,6 @@ import Control.Effect.Reader (Reader)
 import Data.Aeson (
   ToJSON,
  )
-import Data.Foldable (find)
 import Data.List qualified as L
 import Discovery.Filters (AllFilters)
 import Discovery.Simple (simpleDiscover)
@@ -51,9 +50,7 @@ findProjects :: (Has ReadFS sig m, Has Diagnostics sig m, Has (Reader AllFilters
 findProjects = walkWithFilters' $ \_ _ files -> do
   case findProjectAssetsJsonFile files of
     Just file -> pure ([NuGetProject file], WalkContinue)
-    Nothing -> case find isPackageRefFile files of
-      Just file -> pure ([NuGetProject file], WalkContinue)
-      Nothing -> pure ([], WalkContinue)
+    Nothing -> pure (map NuGetProject (filter isPackageRefFile files), WalkContinue)
   where
     findProjectAssetsJsonFile :: [Path Abs File] -> Maybe (Path Abs File)
     findProjectAssetsJsonFile = findFileNamed "project.assets.json"

test/NuGet/NuGetSpec.hs

@@ -0,0 +1,25 @@
+{-# LANGUAGE TemplateHaskell #-}
+
+module NuGet.NuGetSpec (
+  spec,
+) where
+
+import Path (mkRelDir, mkRelFile, (</>))
+import Path.IO (getCurrentDir)
+import Strategy.NuGet (NuGetProject (..))
+import Strategy.NuGet qualified as NuGet
+import Test.Effect (it', shouldMatchList')
+import Test.Hspec (Spec, describe, runIO)
+import Types (DiscoveredProject (projectData))
+
+spec :: Spec
+spec = do
+  currDir <- runIO getCurrentDir
+  let projectDir = currDir </> $(mkRelDir "test/NuGet/testdata/multi-csproj")
+      appCore = projectDir </> $(mkRelFile "App.Core.csproj")
+      ingageWeb = projectDir </> $(mkRelFile "IngageWeb.csproj")
+  describe "NuGet discovery" $
+    it' "discovers every .csproj sibling in a directory (ANE-2523)" $ do
+      projects <- NuGet.discover projectDir
+      let files = map (nugetProjectFile . projectData) projects
+      files `shouldMatchList'` [appCore, ingageWeb]

test/NuGet/testdata/multi-csproj/App.Core.csproj

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="12.0.1" />
+  </ItemGroup>
+</Project>

test/NuGet/testdata/multi-csproj/IngageWeb.csproj

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+  <ItemGroup>
+  </ItemGroup>
+</Project>