fix: honor redownload for explicit AUR targets

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

pkg/sync/workdir/preparer.go

@@ -246,6 +246,9 @@ func (preper *Preparer) needToCloneAURBase(installInfo *dep.InstallInfo, pkgbuil
 	if preper.cfg.ReDownload == "all" {
 		return true
 	}
+	if preper.cfg.ReDownload == "yes" && installInfo.Reason == dep.Explicit {
+		return true
+	}
 
 	srcinfoFile := filepath.Join(pkgbuildDir, ".SRCINFO")
 	if pkgbuild, err := gosrc.ParseFile(srcinfoFile); err == nil {

pkg/sync/workdir/preparer_test.go

@@ -4,11 +4,13 @@ package workdir
 
 import (
 	"io"
+	"path/filepath"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 
+	"github.com/Jguer/yay/v13/pkg/dep"
 	"github.com/Jguer/yay/v13/pkg/settings"
 	"github.com/Jguer/yay/v13/pkg/text"
 )
@@ -69,3 +71,55 @@ func TestPreDownloadSourcesHooks(t *testing.T) {
 		})
 	}
 }
+
+func TestNeedToCloneAURBaseRedownloadModes(t *testing.T) {
+	pkgbuildDir := filepath.Join("..", "..", "..", "testdata", "gourou")
+
+	testCases := []struct {
+		name       string
+		reDownload string
+		reason     dep.Reason
+		want       bool
+	}{
+		{
+			name:       "redownload target",
+			reDownload: "yes",
+			reason:     dep.Explicit,
+			want:       true,
+		},
+		{
+			name:       "redownload dependency only when stale",
+			reDownload: "yes",
+			reason:     dep.MakeDep,
+			want:       false,
+		},
+		{
+			name:       "redownload all",
+			reDownload: "all",
+			reason:     dep.MakeDep,
+			want:       true,
+		},
+		{
+			name:       "normal download",
+			reDownload: "no",
+			reason:     dep.MakeDep,
+			want:       false,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			preper := NewPreparer(nil, nil, &settings.Configuration{
+				ReDownload: tc.reDownload,
+			}, newTestLogger())
+
+			got := preper.needToCloneAURBase(&dep.InstallInfo{
+				AURBase: "gourou",
+				Reason:  tc.reason,
+				Version: "0.8.1-4",
+			}, pkgbuildDir)
+
+			assert.Equal(t, tc.want, got)
+		})
+	}
+}