If we're connecting to the peer which might support
transaction reconciliation, we announce we want to reconcile
with them.
We store the reconciliation salt so that when the peer
responds with their salt, we are able to compute the
full reconciliation salt.
This behavior is enabled with a CLI flag.
626b7c8493ea1063f30ae4f62e1b36eb87adf685 fuzz: add scanblocks as safe for fuzzing (James O'Beirne)
94fe5453c7f8a86136dc9a6e0b370afd32564209 test: rpc: add scanblocks functional test (Jonas Schnelli)
6ef2566b68cb8570220c13df11c5cb5a5f4f7a4d rpc: add scanblocks - scan for relevant blocks with descriptors (Jonas Schnelli)
a4258f6e81a476ce1687e2d58f7d2bf16162a172 rpc: move-only: consolidate blockchain scan args (James O'Beirne)
Pull request description:
Revives #20664. All feedback from the previous PR has either been responded to inline or incorporated here.
---
Major changes from Jonas' PR:
- consolidated arguments for scantxoutset/scanblocks
- substantial cleanup of the functional test
Here's the range-diff (`git range-diff master jonasschnelli/2020/12/filterblocks_rpc jamesob/2021-11-scanblocks`): https://gist.github.com/jamesob/aa4a975344209f0316444b8de2ec1d18
### Original PR description
> The `scanblocks` RPC call allows one to get relevant blockhashes from a set of descriptors by scanning all blockfilters in a given range.
>
> **Example:**
>
> `scanblocks start '["addr(<bitcoin_address>)"]' 661000` (returns relevant blockhashes for `<bitcoin_address>` from blockrange 661000->tip)
>
> ## Why is this useful?
> **Fast wallet rescans**: get the relevant blocks and only rescan those via `rescanblockchain getblockheader(<hash>)[height] getblockheader(<hash>)[height])`. A future PR may add an option to allow to provide an array of blockhashes to `rescanblockchain`.
>
> **prune wallet rescans**: (_needs additional changes_): together with a call to fetch blocks from the p2p network if they have been pruned, it would allow to rescan wallets back to the genesis block in pruned mode (relevant #15946).
>
> **SPV mode** (_needs additional changes_): it would be possible to build the blockfilterindex from the p2p network (rather then deriving them from the blocks) and thus allow some sort of hybrid-SPV mode with moderate bandwidth consumption (related #9483)
ACKs for top commit:
furszy:
diff re-ACK 626b7c8
Tree-SHA512: f84e4dcb851b122b39e9700c58fbc31e899cdcf9b587df9505eaf1f45578cc4253e89ce2a45d1ff21bd213e31ddeedbbcad2c80810f46755b30acc17b07e2873
bf9597606166323158bbf631137b82d41f39334f doc: add note about snapshot chainstate init (James O'Beirne)
e4d799528696c5ede38c257afaffd367917e0de8 test: add testcases for snapshot initialization (James O'Beirne)
cced4e7336d93a2dc88e4a61c49941887766bd72 test: move-only-ish: factor out LoadVerifyActivateChainstate() (James O'Beirne)
51fc9241c08a00f1f407f1534853a5cddbbc0a23 test: allow on-disk coins and block tree dbs in tests (James O'Beirne)
3c361391b8f5971eb3c7b620aa7ad9b437cc515e test: add reset_chainstate parameter for snapshot unittests (James O'Beirne)
00b357c215ed900145bd770525a341ba0ed9c027 validation: add ResetChainstates() (James O'Beirne)
3a29dfbfb2c16a50d854f6f81428a68aa9180509 move-only: test: make snapshot chainstate setup reusable (James O'Beirne)
8153bd9247dad3982d54488bcdb3960470315290 blockmanager: avoid undefined behavior during FlushBlockFile (James O'Beirne)
ad67ff377c2b271cb4683da2fb25fd295557f731 validation: remove snapshot datadirs upon validation failure (James O'Beirne)
34d159033106cc595cfa852695610bfe419c989c add utilities for deleting on-disk leveldb data (James O'Beirne)
252abd1e8bc5cdf4368ad55e827a873240535b28 init: add utxo snapshot detection (James O'Beirne)
f9f1735f139b6a1f1c7fea50717ff90dc4ba2bce validation: rename snapshot chainstate dir (James O'Beirne)
d14bebf100aaaa25c7558eeed8b5c536da99885f db: add StoragePath to CDBWrapper/CCoinsViewDB (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11) (parent PR: https://github.com/bitcoin/bitcoin/pull/15606)
---
Half of the replacement for #24232. The original PR grew larger than expected throughout the review process.
This change adds the ability to initialize a snapshot-based chainstate during init if one is detected on disk. This is of course unused as of now (aside from in unittests) given that we haven't yet enabled actually loading snapshots.
Don't be scared! There are some big move-only commits in here.
Accompanying changes include:
- moving the snapshot coinsdb directory from being called `chainstate_[base blockhash]` to `chainstate_snapshot`, since we only support one snapshot in use at a time. This simplifies some logic, but it necessitates writing that base blockhash out to a file within the coinsdb dir. See [discussion here](https://github.com/bitcoin/bitcoin/pull/24232#discussion_r832762880).
- adding a simple fix in `FlushBlockFile()` that avoids a crash when attemping to flush to disk before `LoadBlockIndexDB()` is called, which happens when calling `MaybeRebalanceCaches()` during multiple chainstate init.
- improving the unittest to allow testing with on-disk chainstates - necessary to test a simulated restart and re-initialization.
ACKs for top commit:
naumenkogs:
utACK bf9597606166323158bbf631137b82d41f39334f
ariard:
Code Review ACK bf9597606
ryanofsky:
Code review ACK bf9597606166323158bbf631137b82d41f39334f. Changes since last review: rebasing, switching from CAutoFile to AutoFile, adding comments, switching from BOOST_CHECK to Assert in test util, using chainman.GetMutex() in tests, destroying one ChainstateManager before creating a new one in tests
fjahr:
utACK bf9597606166323158bbf631137b82d41f39334f
aureleoules:
ACK bf9597606166323158bbf631137b82d41f39334f
Tree-SHA512: 15ae75caf19f8d12a12d2647c52897904d27b265a7af6b4ae7b858592eeadb8f9da6c2394b6baebec90adc28742c053e3eb506119577dae7c1e722ebb3b7bcc0
861cb3fadce88cfaee27088185a48f03fb9dafe7 test: move SyncWithValidationInterfaceQueue() before Stop() in txindex_tests (Vasil Dimov)
6526dc3b78d9ca2b5c67564b04dcacbc75b857e1 test: silence TSAN false positive in coinstatsindex_initial_sync (Vasil Dimov)
Pull request description:
Silence false positives from TSAN about unsynchronized calls to `BaseIndex::~BaseIndex()` and `BaseIndex::SetBestBlockIndex()`. They are synchronized, but beyond the comprehension of TSAN - by `SyncWithValidationInterfaceQueue()`, called from `BaseIndex::BlockUntilSyncedToCurrentChain()`.
Fixes https://github.com/bitcoin/bitcoin/issues/25365
ACKs for top commit:
MarcoFalke:
review ACK 861cb3fadce88cfaee27088185a48f03fb9dafe7
ryanofsky:
Code review ACK 861cb3fadce88cfaee27088185a48f03fb9dafe7. Just comment change since last review.
Tree-SHA512: 8c30fdf2fd11d54e9adfa68a67185ab820bd7bd9f7f3ad6456e7e6d219fa9cf6d34b41e98e723eae86cb0c1baef7f3fc57b1b011a13dc3fe3d78334b9b5596de
b527b549504672704a61f70d2565b9489aaaba91 net: convert standalone SetSocketNonBlocking() to Sock::SetNonBlocking() (Vasil Dimov)
29f66f76826056f53d971ac734b7ed49b39848d3 moveonly: move SetSocketNonBlocking() from netbase to util/sock (Vasil Dimov)
b4bac556791b5bb8aa118d4c1fed42c3fe45550c net: convert standalone IsSelectableSocket() to Sock::IsSelectable() (Vasil Dimov)
5db7d2ca0aa51ff25f97bf21ce0cbc9e6b741cbd moveonly: move IsSelectableSocket() from compat.h to sock.{h,cpp} (Vasil Dimov)
Pull request description:
_This is a piece of #21878, chopped off to ease review._
* convert standalone `IsSelectableSocket()` to `Sock::IsSelectable()`
* convert standalone `SetSocketNonBlocking()` to `Sock::SetNonBlocking()`
This further encapsulates syscalls inside the `Sock` class and makes the callers mockable.
ACKs for top commit:
jonatack:
ACK b527b549504672704a61f70d2565b9489aaaba91 review/debug build/unit tests at each commit, cross-referenced the changes with `man select` and `man errno`, ran a signet node on the last commit with ip4/ip6//tor/i2p/cjdns and network connections were nominal
dergoegge:
Code review ACK b527b549504672704a61f70d2565b9489aaaba91
Tree-SHA512: af783ce558c7a89e173f7ab323fb3517103d765c19b5d14de29f64706b4e1fea3653492e8ea73ae972699986aaddf2ae72c7cfaa7dad7614254283083b7d2632
bcb0cacac28e98a39dc856c574a0872fe17059e9 reindex, log, test: fixes#21379 (mruddy)
Pull request description:
Fixes#21379.
The blocks/blk?????.dat files are mutated and become increasingly malformed, or corrupt, as a result of running the re-indexing process.
The mutations occur after the re-indexing process has finished, as new blocks are appended, but are a result of a re-indexing process miscalculation that lingers in the block manager's `m_blockfile_info` `nSize` data until node restart.
These additions to the blk files are non-fatal, but also not desirable.
That is, this is a form of data corruption that the reading code is lenient enough to process (it skips the extra bytes), but it adds some scary looking log messages as it encounters them.
The summary of the problem is that the re-index process double counts the size of the serialization header (magic message start bytes [4 bytes] + length [4 bytes] = 8 bytes) while calculating the blk data file size (both values already account for the serialization header's size, hence why it is over accounted).
This bug manifests itself in a few different ways, after re-indexing, when a new block from a peer is processed:
1. If the new block will not fit into the last blk file processed while re-indexing, while remaining under the 128MiB limit, then the blk file is flushed to disk and truncated to a size that is 8 greater than it should be. The truncation adds zero bytes (see `FlatFileSeq::Flush` and `TruncateFile`).
1. If the last blk file processed while re-indexing has logical space for the new block under the 128 MiB limit:
1. If the blk file was not already large enough to hold the new block, then the zeros are, in effect, added by `fseek` when the file is opened for writing. Eight zero bytes are added to the end of the last blk file just before the new block is written. This happens because the write offset is 8 too great due to the miscalculation. The result is 8 zero bytes between the end of the last block and the beginning of the next block's magic + length + block.
1. If the blk file was already large enough to hold the new block, then the current existing file contents remain in the 8 byte gap between the end of the last block and the beginning of the next block's magic + length + block. Commonly, when this occcurs, it is due to the blk file containing blocks that are not connected to the block tree during reindex and are thus left behind by the reindex process and later overwritten when new blocks are added. The orphaned blocks can be valid blocks, but due to the nature of concurrent block download, the parent may not have been retrieved and written by the time the node was previously shutdown.
ACKs for top commit:
LarryRuane:
tested code-review ACK bcb0cacac28e98a39dc856c574a0872fe17059e9
ryanofsky:
Code review ACK bcb0cacac28e98a39dc856c574a0872fe17059e9. This is a disturbing bug with an easy fix which seems well-worth merging.
mzumsande:
ACK bcb0cacac28e98a39dc856c574a0872fe17059e9 (reviewed code and did some testing, I agree that it fixes the bug).
w0xlt:
tACK bcb0cacac2
Tree-SHA512: acc97927ea712916506772550451136b0f1e5404e92df24cc05e405bb09eb6fe7c3011af3dd34a7723c3db17fda657ae85fa314387e43833791e9169c0febe51
04526787b5f6613d1f1ad78434e1dd24ab88dd76 Validate `port` options (amadeuszpawlik)
f8387c42343867779170a0f96ef64e6acff5c481 Validate port value in `SplitHostPort` (amadeuszpawlik)
Pull request description:
Validate `port`-options, so that invalid values are rejected early in the startup.
Ports are `uint16_t`s, which effectively limits a port's value to <=65535. As discussed in https://github.com/bitcoin/bitcoin/pull/24116 and https://github.com/bitcoin/bitcoin/pull/24344, port "0" is considered invalid too.
Proposed in https://github.com/bitcoin/bitcoin/issues/21893#issuecomment-835784223
The `SplitHostPort(std::string in, uint16_t& portOut, std::string& hostOut)` now returns a bool that indicates whether the port value was set and within the allowed range. This is an improvement that can be used not only for port validation of options at startup, but also in rpc calls, etc,
ACKs for top commit:
luke-jr:
utACK 04526787b5f6613d1f1ad78434e1dd24ab88dd76
ryanofsky:
Code review ACK 04526787b5f6613d1f1ad78434e1dd24ab88dd76. Just suggested changes since last review: reverting some SplitHostPort changes, adding release notes, avoiding 'GetArgs[0]` problem.
Tree-SHA512: f1ac80bf98520b287a6413ceadb41bc3a93c491955de9b9319ee1298ac0ab982751905762a287e748997ead6198a8bb7a3bc8817ac9e3d2468e11ab4a0f8496d
43b8777dc3e63f4a1b20a3cb23e44c1b9e32862b refactor: move run_command from util to common (Cory Fields)
192325a77d593e404e74ef5e204aed8801b4e66f kernel: move RunCommandParseJSON to its own file (Cory Fields)
Pull request description:
Because libbitcoinkernel does not include this new object, this has the side-effect of eliminating its unnecessary `boost::process` dependency.
This leaves libbitcoinkernel with 3 remaining boost dependencies:
- `boost::date_time` for `util/time.cpp`, which I'll separate out next. Exactly like this PR.
- `boost::signals2` for which I have a POC re-implementation here: https://github.com/theuni/bitcoin/commits/replace-boost-signals
- `boost::multi_index` which I'm not sure about yet.
ACKs for top commit:
ryanofsky:
Code review ACK 43b8777dc3e63f4a1b20a3cb23e44c1b9e32862b. Could consider squashing the two commits, so the code just moves once instead of twice.
fanquake:
ACK 43b8777dc3e63f4a1b20a3cb23e44c1b9e32862b
Tree-SHA512: f2a46cac34aaadfb8a1442316152ad354f6990021b82c78d80cae9fd43cd026209ffd62132eaa99d5d0f8cf34e996b6737d318a9d9a3f1d2ff8d17d697abf26d
faa15527d7e0c7923ff9c0fad7bab4648705ed0f test: Use dedicated mempool in TestBasicMining (MacroFake)
fafab384a0a5f6d80195307b7bbeb00515da432b test: Use dedicated mempool in TestPackageSelection (MacroFake)
fa4055d79c7ea1d4c3b694e39cafa98a1c7ba8bb test: Use dedicated mempool in TestPrioritisedMining (MacroFake)
fa2921828511816d0420c567386e1da0391b3ad7 test: Pass mempool reference to AssemblerForTest (MacroFake)
Pull request description:
This cleans up the miner tests:
* Removes duplicate/redundant and thus confusing chainparams object.
* Uses a fresh mempool for each subtest instead of using the "global" one from the testing setup. This makes it easier to follow the tests in smaller scopes. Also it makes sure the mempool is truly cleared by reconstructing it. Finally, this removes calls to `clear`, see https://github.com/bitcoin/bitcoin/pull/19909
ACKs for top commit:
glozow:
utACK faa15527d7e0c7923ff9c0fad7bab4648705ed0f
Tree-SHA512: ced1260f6ab70fba74b0fac7ff4fc7adfddcd2f3bee785249d2a4a9055ac253eff9090edbda7a17e72a71a81b56ff708d5ff64e1f57ebc7b7747d6c88fec51e3
33b12e5df6aa14344dd084e0c6f2d34158fca383 docs: improve docs where MemPoolLimits is used (stickies-v)
6945853c0bf3b1941bfd18b5ffbd5a81be0e56da test: use NoLimits() in MempoolIndexingTest (stickies-v)
3a86f24a4c1e4e985b1d90eddc135b8dd17049a4 refactor: mempool: use CTxMempool::Limits (stickies-v)
b85af25f8770974bae4ef3fae64e75ef6dd2d3c2 refactor: mempool: add MemPoolLimits::NoLimits() (stickies-v)
Pull request description:
Mempool currently considers 4 limits regarding ancestor and descendant count and size, which get passed around between functions quite a bit. This PR uses `CTxMemPool::Limits` introduced in https://github.com/bitcoin/bitcoin/pull/25290 to simplify those signatures and callsites.
The purpose of this PR is to improve readability and maintenance, without behaviour change.
As noted in the first commit "refactor: mempool: change MemPoolLimits members to uint", we currently have an underflow issue where a user could pass a negative `-limitancestorsize`, which is eventually cast to an unsigned integer. This behaviour already exists. Because it's orthogonal and to minimize scope, I think this should be fixed in a separate PR.
ACKs for top commit:
hebasto:
ACK 33b12e5df6aa14344dd084e0c6f2d34158fca383, I have reviewed the code and it looks OK, I agree it can be merged.
glozow:
reACK 33b12e5df6aa14344dd084e0c6f2d34158fca383
Tree-SHA512: 591c6dcee1894f1c3ca28b34a680eeadcf0d40cda92451b4a422c03087b27d682b5e30ba4367abd75a99b5ccb115b7884b0026958d3c7dddab030549db5a4056
Forward the validation of the port from `ParseUInt16(...)`.
Consider port 0 as invalid.
Add suitable test for the `SplitHostPort` function.
Add doxygen description to the `SplitHostPort` function.
The (100, 1000000, 1000, 1000000) limits are arbitrarily high and
don't restrict anything, they are just meant to calculate ancestors
properly. Using NoLimits() makes this intent more clear and simplifies
the code.
8a6b6dfcd8d26b62c3a13beba72440635fcc5e19 fuzz: pass max fee into ConsumeTxMemPoolEntry (fanquake)
eb155692804b4278f6638c74273c1d9d35cd6ab7 fuzz: add util/mempool/h.cpp (fanquake)
Pull request description:
Moving the heavy (Boost) mempool code out of fuzz/util.h. Means that (for ex) a crypto_common fuzz unit doesn't need to care about seeing endless Boost headers. This results in a ~10% speedup (for me) when compiling the fuzz tests. Your results may vary.
ACKs for top commit:
MarcoFalke:
review ACK 8a6b6dfcd8d26b62c3a13beba72440635fcc5e19 🍮
Tree-SHA512: 27dc9d9581ac0b1b319cc0dc08fe5f8fbf9269386a5cb23f6fd5d8231bf015ed942ab4414d8001220541be0013756354578ddab1fec607c6fba04daf421bc870
Quoting ryanofsky: "util can be the library for things included in the kernel
which the kernel can depend on, and common can be the library for other code
that needs to be shared internally, but should not be part of the kernel or
shared externally."
079cf88c0df6de038b8f8933d55c0d17af007b43 refactor: move Boost datetime usage to wallet (fanquake)
Pull request description:
This means we don't need Boost Datetime in a `--disable-wallet` build, and it isn't included in the kernel (via time.h/cpp). Split from a larger boost removal branch/effort.
ACKs for top commit:
hebasto:
re-ACK 079cf88c0df6de038b8f8933d55c0d17af007b43
aureleoules:
re-ACK 079cf88c0df6de038b8f8933d55c0d17af007b43 - rebased and two additional unit tests since my last review.
jarolrod:
crACK 079cf88c0df6de038b8f8933d55c0d17af007b43
Tree-SHA512: c84f47158a4f21902f211c059d8c4bd55ffe95a256835deee723653be08cca49eeddfc33a2316b0cd31805e81cf77eaa39c6c9dcff4cda11a26ba4c1c143974e
fa4ba04c157b83b827f7541fa007710bd6211fe7 fuzz: Remove no-op call to get() (MacroFake)
fa642286b83f29cb0ac0c8d4c7d8eba10600402c fuzz: Avoid timeout in bitdeque fuzz target (MacroFake)
Pull request description:
I'd guess that any bug should be discoverable within `10` ops. However, `900` seems also better than no limit at all, which causes timeouts such as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50892
ACKs for top commit:
sipa:
ACK fa4ba04c157b83b827f7541fa007710bd6211fe7
Tree-SHA512: f6bd25e78d5f04c6f88e9300c2fa3d0993a0911cb0fd1b414077adc0edde1a06ad72af5e2f50f0ab1324f91999ae57d879686c545b2e6c19ae7f637a8804bd48
d575a675cc884b1bebdb6197f2ef45c51788d4a3 net_processing: add thread safety annotation for m_highest_fast_announce (Anthony Towns)
0ae7987f68211729d87c9255889f4d9d1aa6a37f net_processing: add thread safety annotations for PeerManagerImpl members accessed only via the msgproc thread (Anthony Towns)
a66a7ccb822f0f1f554d27d04735b7fb585d3b71 net_processing: add thread safety annotations for Peer members accessed only via the msgproc thread (Anthony Towns)
bf12abe4542f2cf658516ea7e7fbbff6864c2208 net: drop cs_sendProcessing (Anthony Towns)
1e78f566d575a047a6f0b762bc79601e0208d103 net: add NetEventsInterface::g_msgproc_mutex (Anthony Towns)
Pull request description:
There are many cases where we assume message processing is single-threaded in order for how we access node-related memory to be safe. Add an explicit mutex that we can use to document this, which allows the compiler to catch any cases where we try to access that memory from other threads and break that assumption.
ACKs for top commit:
MarcoFalke:
review ACK d575a675cc884b1bebdb6197f2ef45c51788d4a3 📽
dergoegge:
Code review ACK d575a675cc884b1bebdb6197f2ef45c51788d4a3
w0xlt:
ACK d575a675cc
vasild:
ACK d575a675cc884b1bebdb6197f2ef45c51788d4a3 modulo the missing runtime checks
Tree-SHA512: b886d1aa4adf318ae64e32ccaf3d508dbb79d6eed3f1fa9d8b2ed96f3c72a3d38cd0f12e05826c9832a2a1302988adfd2b43ea9691aa844f37d8f5c37ff20e05
b6a65568dfbaf25839858b3114c28c07d8f9a45f Fix issues identified by codespell 2.2.1 and update ignored words (Jon Atack)
8f2010de6e7c232d540cc4a10516ae6ec98ebb22 Bump codespell version to 2.2.1 (Jon Atack)
Pull request description:
as well as one in `test/lint/lint-locale-dependence.py` not seen by the spelling linter.
Can be tested locally by running `test/lint/lint-spelling.py` on this branch versus on master and by checking the CI linter result.
ACKs for top commit:
satsie:
ACK b6a65568dfbaf25839858b3114c28c07d8f9a45f
Tree-SHA512: ab4ba029a9a5de5926fa5d336bd3b21245acf0649c6aa69a48c223bd22327e13beb32e970f66f54db58cd318731b643e1c7ace9a89776ed2a069cddc02363b71
and also fix spelling in test/lint/lint-locale-dependence.py not caught by the
spelling linter and fix up a paragraph we are touching here in test/README.md.
There are many cases where we assume message processing is
single-threaded in order for how we access node-related memory to be
safe. Add an explicit mutex that we can use to document this, which allows
the compiler to catch any cases where we try to access that memory from
other threads and break that assumption.
in TestingSetup(). This is used in the following commit to test
reinitializing chainstates after snapshot validation and cleanup.
Best reviewed with `git diff --color-moved=dimmed-zebra`.
This CreateAndActivateUTXOSnapshot parameter is necessary once we
perform snapshot completion within ABC, since the existing UpdateTip
test will fail because the IBD chain that has generated the snapshot
will exceed the base of the snapshot.
Being able to test snapshots being loaded into a mostly-uninitialized
datadir allows for more realistic unittest scenarios.
Add functionality for activating a snapshot-based chainstate if one is
detected on-disk.
Also cautiously initialize chainstate cache usages so that we don't
somehow blow past our cache allowances during initialization, then
rebalance at the end of init.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
This changes the snapshot's leveldb chainstate dir name from
`chainstate_[blockhash]` to `chainstate_snapshot`. This simplifies
later logic that loads snapshot data, and enforces the limitation
of a single snapshot at any given time.
Since we still need to persis the blockhash of the base block, we
write that out to a file (`chainstate_snapshot/base_blockhash`) for
later use during initialization, so that we can reinitialize the
snapshot chainstate.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
00eeb31c7660e2c28f189f77a6905dee946ef408 scripted-diff: rename CChainState -> Chainstate (James O'Beirne)
Pull request description:
Alright alright alright, I know: we hate refactors. We especially hate cosmetic refactors.
Nobody knows better than I that changing broad swaths of code out from under our already-abused collaborators, only to send a cascade of rebase bankruptcies, is annoying at best and sadistic at worst. And for a rename! The indignation!
But just for a second, imagine yourself. Programming `bitcoin/bitcoin`, on a sandy beach beneath a lapis lazuli sky. You go to type the name of what is probably the most commonly used data structure in the codebase, and you *only hit shift once*.
What could you do in such a world? You could do anything. [The only limit is yourself.](https://zombo.com/)
---
So maybe you like the idea of this patch but really don't want to deal with rebasing. You're in luck!
Here're the commands that will bail you out of rebase bankruptcy:
```sh
git rebase -i $(git merge-base HEAD master) \
-x 'sed -i "s/CChainState/Chainstate/g" $(git ls-files | grep -E ".*\.(py|cpp|h)$") && git commit --amend --no-edit'
# <commit changed?>
git add -u && git rebase --continue
```
---
~~Anyway I'm not sure how serious I am about this, but I figured it was worth proposing.~~ I have decided I am very serious about this.
Maybe we can have nice things every once in a while?
ACKs for top commit:
MarcoFalke:
cr ACK 00eeb31c7660e2c28f189f77a6905dee946ef408
hebasto:
ACK 00eeb31c7660e2c28f189f77a6905dee946ef408
glozow:
ACK 00eeb31c7660e2c28f189f77a6905dee946ef408, thanks for being the one to propose this
w0xlt:
ACK 00eeb31c76
Tree-SHA512: b828a99780614a9b74f7a9c347ce0687de6f8d75232840f5ffc26e02bbb25a3b1f5f9deabbe44f82ada01459586ee8452a3ee2da05d1b3c48558c8df6f49e1b1
