Fix cascade draft panic

Fixes #14409
Fixes #14412

Co-authored-by: Joe Mooring <joe.mooring@veriphor.com>

.github/workflows/test.yml

@@ -106,7 +106,10 @@ jobs:
         run: go install honnef.co/go/tools/cmd/staticcheck@latest
       - if: matrix.os == 'ubuntu-latest'
         name: Run staticcheck
-        run: staticcheck ./...
+        run: |
+          export STATICCHECK_CACHE="${{ runner.temp }}/staticcheck"
+          staticcheck ./...
+          rm -rf ${{ runner.temp }}/staticcheck
       - if: matrix.os != 'windows-latest'
         name: Check
         run: |
@@ -118,16 +121,15 @@ jobs:
         # See issue #11052. We limit the build to regular test (no -race flag) on Windows for now.
         name: Test
         run: |
-          mage -v test;
+          mage -v test
+          go clean -i -testcache
         env:
           HUGO_BUILD_TAGS: extended,withdeploy
-      - name: Build tags
-        run: |
-          go install -tags extended
       - if: matrix.os == 'ubuntu-latest'
         name: Build for dragonfly
         run: |
           go install
+          go clean -i -cache
         env:
           GOARCH: amd64
           GOOS: dragonfly

hugolib/cascade_test.go

@@ -416,3 +416,66 @@ title: p1 (en)
 	b.AssertFileContent("public/en/s1/p1/index.html", "|color: red (en)|size: medium|") // fails: file contains "|color: red (en)|size: |"
 	b.AssertFileContent("public/de/s1/p1/index.html", "|color: red (de)|size: medium|")
 }
+
+// Issue 14409
+func TestCascadeDraftTrue14409(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- hugo.toml --
+disableKinds = ['rss','taxonomy','term']
+defaultContentLanguage         = 'en'
+defaultContentLanguageInSubdir = true
+
+[languages.en]
+  weight = 1
+[languages.de]
+  weight = 2
+
+[[cascade]]
+  draft = true
+  [cascade.target.sites.matrix]
+    languages = ['en']
+-- content/_index.en.md --
+---
+title: home en
+draft: false
+---
+-- content/_index.de.md --
+---
+title: home de
+draft: false
+---
+-- content/s1/_index.en.md --
+---
+title: s1 en
+draft: false
+---
+-- content/s1/_index.de.md --
+---
+title: s1 de
+draft: false
+---
+-- content/s1/p1.en.md --
+---
+title: p1 en
+---
+-- content/s1/p1.de.md --
+---
+title: p1 de
+---
+-- layouts/all.html --
+{{ .Title }}
+`
+
+	b := Test(t, files)
+
+	b.AssertFileExists("public/de/index.html", true)
+	b.AssertFileExists("public/en/index.html", true)
+
+	b.AssertFileExists("public/de/s1/index.html", true)
+	b.AssertFileExists("public/en/s1/index.html", true)
+
+	b.AssertFileExists("public/de/s1/p1/index.html", true)
+	b.AssertFileExists("public/en/s1/p1/index.html", false)
+}

hugolib/content_map_page_assembler.go

@@ -86,7 +86,7 @@ func newAllPagesAssembler(
 		seenTerms:                  hmaps.NewMap[term, sitesmatrix.Vectors](),
 		droppedPages:               hmaps.NewMap[*Site, []string](),
 		seenRootSections:           seenRootSections,
-		assembleSectionsInParallel: true,
+		assembleSectionsInParallel: !h.isRebuild(), // On partial rebuilds, there's potential data races with parallel section assembly.
 		pwRoot:                     pw,
 		rwRoot:                     rw,
 	}
@@ -273,27 +273,23 @@ func (a *allPagesAssembler) doCreatePages(prefix string, depth int) error {
 						return false
 					}
 
-					var drop bool
 					if !site.shouldBuild(p) {
+						(&p.m.pageConfig.Build).Disable()
 						switch p.Kind() {
 						case kinds.KindHome, kinds.KindSection, kinds.KindTaxonomy:
-							// We need to keep these for the structure, but disable
-							// them so they don't get listed/rendered.
-							(&p.m.pageConfig.Build).Disable()
+							// We need to keep these for the structure.
 						default:
-							// Skip this page.
+							// Drop this page.
 							a.droppedPages.WithWriteLock(
 								func(m map[*Site][]string) error {
 									m[site] = append(m[site], s)
 									return nil
 								},
 							)
-
-							drop = true
 						}
 					}
 
-					if !drop && n == nil {
+					if n == nil {
 						if n2 == nil {
 							// Avoid creating a map for one node.
 							n2 = p

magefile.go

@@ -194,13 +194,13 @@ func TestRace() error {
 			return err
 		}
 		for _, pkg := range pkgs {
-			slashCount := strings.Count(pkg, "/")
+			/*slashCount := strings.Count(pkg, "/")
 			if slashCount > 1 {
 				continue
 			}
 			if pkg != "." {
 				pkg += "/..."
-			}
+			}*/
 			if err := cmp.Or(CleanTest(), UninstallAll()); err != nil {
 				return err
 			}