worker/jobs: Move index-related jobs into dedicated modules

src/worker/jobs/index/mod.rs

@@ -0,0 +1,10 @@
+//! This module contains all background jobs related to the git and
+//! sparse indexes.
+
+mod normalize;
+mod squash;
+mod sync;
+
+pub use normalize::NormalizeIndex;
+pub use squash::SquashIndex;
+pub use sync::{SyncToGitIndex, SyncToSparseIndex};