Support OUT_DIR for license graph.

Bug: 226066987

Test: OUT_DIR=/tmp/outdir m all listshare checkshare htmlnotice rtrace dumpgraph dumpresolutions compliancenotice_bom compliancenotice_shippedlibs
Test: OUT_DIR=/tmp/outdir m /tmp/outdir/target/product/bonito/obj/NOTICE.xml.gz
Test: m all listshare checkshare htmlnotice rtrace dumpgraph dumpresolutions compliancenotice_bom compliancenotice_shippedlibs
Test: m out/target/product/bonito/obj/NOTICE.xml.gz

Change-Id: I6282c647a389c5935d5ce7c79193f86d32c76365
diff --git a/tools/compliance/cmd/listshare/listshare.go b/tools/compliance/cmd/listshare/listshare.go
index 030caa7..7f4038b 100644
--- a/tools/compliance/cmd/listshare/listshare.go
+++ b/tools/compliance/cmd/listshare/listshare.go
@@ -18,6 +18,7 @@
 	"flag"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"sort"
@@ -54,7 +55,7 @@
 		os.Exit(2)
 	}
 
-	err := listShare(os.Stdout, os.Stderr, flag.Args()...)
+	err := listShare(os.Stdout, os.Stderr, compliance.FS, flag.Args()...)
 	if err != nil {
 		if err == failNoneRequested {
 			flag.Usage()
@@ -66,14 +67,14 @@
 }
 
 // listShare implements the listshare utility.
-func listShare(stdout, stderr io.Writer, files ...string) error {
+func listShare(stdout, stderr io.Writer, rootFS fs.FS, files ...string) error {
 	// Must be at least one root file.
 	if len(files) < 1 {
 		return failNoneRequested
 	}
 
 	// Read the license graph from the license metadata files (*.meta_lic).
-	licenseGraph, err := compliance.ReadLicenseGraph(os.DirFS("."), stderr, files)
+	licenseGraph, err := compliance.ReadLicenseGraph(rootFS, stderr, files)
 	if err != nil {
 		return fmt.Errorf("Unable to read license metadata file(s) %q: %v\n", files, err)
 	}
diff --git a/tools/compliance/cmd/listshare/listshare_test.go b/tools/compliance/cmd/listshare/listshare_test.go
index 91e9a43..c1e38be 100644
--- a/tools/compliance/cmd/listshare/listshare_test.go
+++ b/tools/compliance/cmd/listshare/listshare_test.go
@@ -20,6 +20,8 @@
 	"os"
 	"strings"
 	"testing"
+
+	"android/soong/tools/compliance"
 )
 
 func TestMain(m *testing.M) {
@@ -40,6 +42,7 @@
 	tests := []struct {
 		condition   string
 		name        string
+		outDir      string
 		roots       []string
 		expectedOut []projectShare
 	}{
@@ -481,7 +484,7 @@
 			for _, r := range tt.roots {
 				rootFiles = append(rootFiles, "testdata/"+tt.condition+"/"+r)
 			}
-			err := listShare(stdout, stderr, rootFiles...)
+			err := listShare(stdout, stderr, compliance.GetFS(tt.outDir), rootFiles...)
 			if err != nil {
 				t.Fatalf("listshare: error = %v, stderr = %v", err, stderr)
 				return