enable LinearImport for diffCache during import

cache/diff.go

@@ -237,8 +237,6 @@ func newRefIndex(path string, opts *cacheOptions) (*bunchRefCache, error) {
 	index.waitWrite = &sync.WaitGroup{}
 	index.waitAdd = &sync.WaitGroup{}
 
-	// index.SetLinearImport(true)
-
 	return &index, nil
 }
 
@@ -259,6 +257,8 @@ func (index *bunchRefCache) SetLinearImport(val bool) {
 		index.waitAdd.Wait()
 		close(index.write)
 		index.waitWrite.Wait()
+
+		index.linearImport = false
 	}
 }
 

cache/diff_test.go

@@ -100,19 +100,16 @@ func TestWriteDiff(t *testing.T) {
 	if err != nil {
 		t.Fatal()
 	}
+	defer cache.Close()
+	cache.SetLinearImport(true)
 
 	for w := 0; w < 5; w++ {
 		for n := 0; n < 200; n++ {
 			cache.add(int64(n), int64(w))
 		}
 	}
-	cache.Close()
 
-	cache, err = newRefIndex(cache_dir, &globalCacheOptions.CoordsIndex)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer cache.Close()
+	cache.SetLinearImport(false)
 
 	for n := 0; n < 200; n++ {
 		refs := cache.Get(int64(n))

goposm.go

@@ -240,6 +240,10 @@ func mainimport() {
 		if err != nil {
 			log.Fatal(err)
 		}
+		if diffCache != nil {
+			diffCache.Coords.SetLinearImport(true)
+			diffCache.Ways.SetLinearImport(true)
+		}
 		osmCache.Coords.SetReadOnly(true)
 		pointsTagMatcher := tagmapping.PointMatcher()
 		lineStringsTagMatcher := tagmapping.LineStringMatcher()