Rc/v0.8.0

[doitian]

Features

• feature: index whether a tx is a cellbase in the chain #336: index whether a tx is a cellbase in the chain r=quake a=u2

  Index whether a tx is a cellbase in the chain, prepare for the cellbase outputs maturity checking.

  Now saving the cellbase index and block number in the TransactionMeta, there is another implementation which creates a HashMap<tx_hash, number>. The second one may be a little memory saving, but this one is more simple. I think both are ok.

  Consensus rule on cellbase outputs maturity period #54

• feat: use TryFrom convert protocol #350: use TryFrom convert protocol r=doitian a=zhangsoledad

• feat: Integrate discovery and identify protocol #340: Integrate discovery and identify protocol r=jjyr a=TheWaWaR

  Known issues:

  • Shutdown network not very graceful.

• feat: Add random_peers function to PeerStore #345: Add random_peers function to PeerStore r=jjyr a=jjyr

• feat: enforce type field of a cellbase output cell must be absent #335: Enforce type field of a cellbase output cell must be absent r=doitian a=zhangsoledad

• feat: version verification #334: Version verification r=doitian a=zhangsoledad

• Replace p2p library #295: Replace P2P library r=quake a=jjyr

Bug Fixes

• fix: trace rpc #365: trace rpc r=zhangsoledad a=zhangsoledad

  addition:

  • remove integration tests from root workspace
  • fix integration tests logger panic at flush

• feat: verify tx cycles in relay protocol #341: verify tx cycles in relay protocol r=zhangsoledad a=jjyr

Improvements

• refactor: merge cell_set chain_state cell provider #359: merge cell_set chain_state cell provider r=quake a=zhangsoledad

• refactor: use CellProvider #343: use CellProvider r=zhangsoledad a=quake

  This refactoring is intended to remove closure in ChainService and duplicate code in ChainState. And fix bugs in block processing and add some test cases.

• refactor: replace unwrap with expect #346: replace unwrap with expect r=doitian a=zhangsoledad

• perf: shrink lock-acquisition #342: shrink lock-acquisition r=quake a=zhangsoledad

• BREAKCHANGE: refactor network config #361: refactor network config r=jjyr a=jjyr

• Unify network peer scoring #356: Unify network peer scoring r=jjyr a=jjyr

• Refactor peer store #349: Refactor peer store r=jjyr a=jjyr

BREAKING CHANGES

• BREAKCHANGE: refactor network config #361: network config

[network]
- reserved_nodes = []	
-only_reserved_peers = false	
-max_peers = 8	
-min_peers = 4	
-secret_file = "secret_key"	
-peer_store_path = "peer_store.db"	

+reserved_peers = []
+reserved_only = false
+max_peers = 125
+max_outbound_peers = 30
+config_dir_path = "default/network"
+ping_interval_secs = 15
+ping_timeout_secs = 20
+connect_outbound_interval_secs = 15