* core/state: abstracted "write account to trie" method

* fix appveyor build

* Apply suggestions from code review

Co-authored-by: Martin Holst Swende <martin@swende.se>

* review feedback

* core/state/accounts: move Account to core/types

* core/types: rename Account -> StateAccount

* core/state: restore EncodeRLP for stateObject

* core/types: add the missing file

* more review feedback

* more review feedback

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>

* cmd/geth, eth, core: snapshot dump + unify with trie dump

* cmd/evm: dump API fixes

* cmd/geth, core, eth: fix some remaining errors

* cmd/evm: dump - add limit, support address startkey, address review concerns

* cmd, core/state, eth: minor polishes, fix snap dump crash, unify format

Co-authored-by: Péter Szilágyi <peterke@gmail.com>

* eth/protocols: persist received state segments

* core: initial implementation

* core/state/snapshot: add tests

* core, eth: updates

* eth/protocols/snapshot: count flat state size

* core/state: add metrics

* core/state/snapshot: skip unnecessary deletion

* core/state/snapshot: rename

* core/state/snapshot: use the global batch

* core/state/snapshot: add logs and fix wiping

* core/state/snapshot: fix

* core/state/snapshot: save generation progress even if the batch is empty

* core/state/snapshot: fixes

* core/state/snapshot: fix initial account range length

* core/state/snapshot: fix initial account range

* eth/protocols/snap: store flat states during the healing

* eth/protocols/snap: print logs

* core/state/snapshot: refactor (#4)

* core/state/snapshot: refactor

* core/state/snapshot: tiny fix and polish

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>

* core, eth: fixes

* core, eth: fix healing writer

* core, trie, eth: fix paths

* eth/protocols/snap: fix encoding

* eth, core: add debug log

* core/state/generate: release iterator asap (#5)

core/state/snapshot: less copy

core/state/snapshot: revert split loop

core/state/snapshot: handle storage becoming empty, improve test robustness

core/state: test modified codehash

core/state/snapshot: polish

* core/state/snapshot: optimize stats counter

* core, eth: add metric

* core/state/snapshot: update comments

* core/state/snapshot: improve tests

* core/state/snapshot: replace secure trie with standard trie

* core/state/snapshot: wrap return as the struct

* core/state/snapshot: skip wiping correct states

* core/state/snapshot: updates

* core/state/snapshot: fixes

* core/state/snapshot: fix panic due to reference flaw in closure

* core/state/snapshot: fix errors in state generation logic + fix log output

* core/state/snapshot: remove an error case

* core/state/snapshot: fix condition-check for exhausted snap state

* core/state/snapshot: use stackTrie for small tries

* core/state/snapshot: don't resolve small storage tries in vain

* core/state/snapshot: properly clean up storage of deleted accounts

* core/state/snapshot: avoid RLP-encoding in some cases + minor nitpicks

* core/state/snapshot: fix error (+testcase)

* core/state/snapshot: clean up tests a bit

* core/state/snapshot: work in progress on better tests

* core/state/snapshot: polish code

* core/state/snapshot: fix trie iteration abortion trigger

* core/state/snapshot: fixes flaws

* core/state/snapshot: remove panic

* core/state/snapshot: fix abort

* core/state/snapshot: more tests (plus failing testcase)

* core/state/snapshot: more testcases + fix for failing test

* core/state/snapshot: testcase for malformed data

* core/state/snapshot: some test nitpicks

* core/state/snapshot: improvements to logging

* core/state/snapshot: testcase to demo error in abortion

* core/state/snapshot: fix abortion

* cmd/geth: make verify-state report the root

* trie: fix failing test

* core/state/snapshot: add timer metrics

* core/state/snapshot: fix metrics

* core/state/snapshot: udpate tests

* eth/protocols/snap: write snapshot account even if code or state is needed

* core/state/snapshot: fix diskmore check

* core/state/snapshot: review fixes

* core/state/snapshot: improve error message

* cmd/geth: rename 'error' to 'err' in logs

* core/state/snapshot: fix some review concerns

* core/state/snapshot, eth/protocols/snap: clear snapshot marker when starting/resuming snap sync

* core: add error log

* core/state/snapshot: use proper timers for metrics collection

* core/state/snapshot: address some review concerns

* eth/protocols/snap: improved log message

* eth/protocols/snap: fix heal logs to condense infos

* core/state/snapshot: wait for generator termination before restarting

* core/state/snapshot: revert timers to counters to track total time

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>

* all: add read-only option to database

* all: fixes tests

* cmd/geth: migrate flags

* cmd/geth: fix the compact

* cmd/geth: fix the format

* cmd/geth: fix log

* cmd: add chain-readonly

* core: add readonly notion to freezer

* core/rawdb: add log

* core/rawdb: fix freezer close

* cmd: fix

* cmd, core: construct db

* core: update tests

This removes support for all deprecated flags except --rpc*.

* cmd, core, tests: initial state pruner

core: fix db inspector

cmd/geth: add verify-state

cmd/geth: add verification tool

core/rawdb: implement flatdb

cmd, core: fix rebase

core/state: use new contract code layout

core/state/pruner: avoid deleting genesis state

cmd/geth: add helper function

core, cmd: fix extract genesis

core: minor fixes

contracts: remove useless

core/state/snapshot: plugin stacktrie

core: polish

core/state/snapshot: iterate storage concurrently

core/state/snapshot: fix iteration

core: add comments

core/state/snapshot: polish code

core/state: polish

core/state/snapshot: rebase

core/rawdb: add comments

core/rawdb: fix tests

core/rawdb: improve tests

core/state/snapshot: fix concurrent iteration

core/state: run pruning during the recovery

core, trie: implement martin's idea

core, eth: delete flatdb and polish pruner

trie: fix import

core/state/pruner: add log

core/state/pruner: fix issues

core/state/pruner: don't read back

core/state/pruner: fix contract code write

core/state/pruner: check root node presence

cmd, core: polish log

core/state: use HEAD-127 as the target

core/state/snapshot: improve tests

cmd/geth: fix verification tool

cmd/geth: use HEAD as the verification default target

all: replace the bloomfilter with martin's fork

cmd, core: polish code

core, cmd: forcibly delete state root

core/state/pruner: add hash64

core/state/pruner: fix blacklist

core/state: remove blacklist

cmd, core: delete trie clean cache before pruning

cmd, core: fix lint

cmd, core: fix rebase

core/state: fix the special case for clique networks

core/state/snapshot: remove useless code

core/state/pruner: capping the snapshot after pruning

cmd, core, eth: fixes

core/rawdb: update db inspector

cmd/geth: polish code

core/state/pruner: fsync bloom filter

cmd, core: print warning log

core/state/pruner: adjust the parameters for bloom filter

cmd, core: create the bloom filter by size

core: polish

core/state/pruner: sanitize invalid bloomfilter size

cmd: address comments

cmd/geth: address comments

cmd/geth: address comment

core/state/pruner: address comments

core/state/pruner: rename homedir to datadir

cmd, core: address comments

core/state/pruner: address comment

core/state: address comments

core, cmd, tests: address comments

core: address comments

core/state/pruner: release the iterator after each commit

core/state/pruner: improve pruner

cmd, core: adjust bloom paramters

core/state/pruner: fix lint

core/state/pruner: fix tests

core: fix rebase

core/state/pruner: remove atomic rename

core/state/pruner: address comments

all: run go mod tidy

core/state/pruner: avoid false-positive for the middle state roots

core/state/pruner: add checks for middle roots

cmd/geth: replace crit with error

* core/state/pruner: fix lint

* core: drop legacy bloom filter

* core/state/snapshot: improve pruner

* core/state/snapshot: polish concurrent logs to report ETA vs. hashes

* core/state/pruner: add progress report for pruning and compaction too

* core: fix snapshot test API

* core/state: fix some pruning logs

* core/state/pruner: support recovering from bloom flush fail

Co-authored-by: Péter Szilágyi <peterke@gmail.com>