feat(l1): lowmem mode

[Oppen]

Motivation

Description

Closes #issue_number

[github-actions]

Lines of code report

Total lines added: 1373
Total lines removed: 11
Total lines changed: 1384

Detailed view

+---------------------------------------------------------------+-------+-------+
| File                                                          | Lines | Diff  |
+---------------------------------------------------------------+-------+-------+
| ethrex/cmd/ethrex/cli.rs                                      | 532   | +8    |
+---------------------------------------------------------------+-------+-------+
| ethrex/cmd/ethrex/initializers.rs                             | 413   | +4    |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/store.rs                                | 1440  | +10   |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/store_db/mod.rs                         | 5     | +2    |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/store_db/rocksdb.rs                     | 1102  | -11   |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/store_db/rocksdb_transactional.rs       | 1116  | +1116 |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/trie_db/mod.rs                          | 8     | +4    |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/trie_db/rocksdb_transactional.rs        | 165   | +165  |
+---------------------------------------------------------------+-------+-------+
| ethrex/crates/storage/trie_db/rocksdb_transactional_locked.rs | 64    | +64   |
+---------------------------------------------------------------+-------+-------+

[lferrigno]

The code currently copy-pastes the Store implementation because making it generic would basically require some magic.

This should get much simpler once one of the following happens:

• The DBInner trait is exposed and released (@Oppen opened an issue here: Expose DBInner trait rust-rocksdb/rust-rocksdb#1046
  ), or

• The store API redesign lands, which will at least reduce the amount of code per implementation.

⚠️ Note: any merge from main should manually readjust the Store copy.