fada2dfcac1c4b47ee76b877d91d515cf1d36410 test: Fix wallet_multiwallet issue on windows (MarcoFalke)
Pull request description:
The error message on windows:
> 2020-11-30T18:10:47.536032Z ListWalletDir: Error scanning C:\Users\user\AppData\Local\Temp\test_runner_₿_🏃_20201130_181042\wallet_multiwallet_0\node0\regtest\wallets\self_walletdat_symlink: boost::filesystem::status: The name of the file cannot be resolved by the system: "C:\Users\user\AppData\Local\Temp\test_runner_₿_🏃_20201130_181042\wallet_multiwallet_0\node0\regtest\wallets\self_walletdat_symlink\wallet.dat"
ACKs for top commit:
promag:
Code review ACK fada2dfcac1c4b47ee76b877d91d515cf1d36410. Although it could ignore (don't log) directories that lead to no permission error.
fanquake:
ACK fada2dfcac1c4b47ee76b877d91d515cf1d36410
Tree-SHA512: b475162cc3cd1574209d916605b229a79c8089714295f5e16569b71f958f0007d54dc76833938492d931387784588b11b73e3ef00f963540af42c079417f8d72
24d2d3341d07509ad3f37bb6f130446ad20ac807 QA: wallet_multiwallet: Check that recursive symlink directory and wallet.dat loops are ignored (Luke Dashjr)
69f59af54d15ee9800d5df86bcdb0e962c71e7c3 Bugfix: Wallet: Soft-fail exceptions within ListWalletDir file checks (Luke Dashjr)
Pull request description:
Previously, an exception would be thrown, which could kill the node in some circumstances.
Includes test changes to cause failure.
Review with `?w=1`
ACKs for top commit:
hebasto:
re-ACK 24d2d3341d07509ad3f37bb6f130446ad20ac807, rebased only since my [previous](https://github.com/bitcoin/bitcoin/pull/19502#pullrequestreview-520552944) review.
promag:
Tested ACK 24d2d3341d07509ad3f37bb6f130446ad20ac807, test change fails on master.
meshcollider:
utACK 24d2d3341d07509ad3f37bb6f130446ad20ac807
Tree-SHA512: f701f81b3aa3d3e15cee52ac9e7c31a73c0d8166e56bf077235294507cbcee099829fedc432a1c4b6d8780885f4e37897b44b980b08125771de3c849c000499e
c4a29d0a90b821c443c10891d9326c534d15cf97 Update wallet_multiwallet.py for descriptor and sqlite wallets (Russell Yanofsky)
310b0fde04639b7446efd5c1d2701caa4b991b86 Run dumpwallet for legacy wallets only in wallet_backup.py (Andrew Chow)
6c6639ac9f6e1677da066cf809f9e3fa4d2e7c32 Include sqlite3 in documentation (Andrew Chow)
f023b7cac0eb16d3c1bf40f1f7898b290de4cc73 wallet: Enforce sqlite serialized threading mode (Andrew Chow)
6173269866306058fcb1cc825b9eb681838678ca Set and check the sqlite user version (Andrew Chow)
9d3d2d263c331e3c77b8f0d01ecc9fea0407dd17 Use network magic as sqlite wallet application ID (Andrew Chow)
9af5de3798c49f86f27bb79396e075fb8c1b2381 Use SQLite for descriptor wallets (Andrew Chow)
9b78f3ce8ed1867c37f6b9fff98f74582d44b789 walletutil: Wallets can also be sqlite (Andrew Chow)
ac38a87225be0f1103ff9629d63980550d2f372b Determine wallet file type based on file magic (Andrew Chow)
6045f77003f167bee9a85e2d53f8fc6ff2e297d8 Implement SQLiteDatabase::MakeBatch (Andrew Chow)
727e6b2a4ee5abb7f2dcbc9f7778291908dc28ad Implement SQLiteDatabase::Verify (Andrew Chow)
b4df8fdb19fcded7e6d491ecf0b705cac0ec76a1 Implement SQLiteDatabase::Rewrite (Andrew Chow)
010e3659069e6f97dd7b24483f50ed71042b84b0 Implement SQLiteDatabase::TxnBegin, TxnCommit, and TxnAbort (Andrew Chow)
ac5c1617e7f4273daf24c24da1f6bc5ef5ab2d2b Implement SQLiteDatabase::Backup (Andrew Chow)
f6f9cd6a64842ef23777312f2465e826ca04b886 Implement SQLiteBatch::StartCursor, ReadAtCursor, and CloseCursor (Andrew Chow)
bf90e033f4fe86cfb90492c7e0962278ea3a146d Implement SQLiteBatch::ReadKey, WriteKey, EraseKey, and HasKey (Andrew Chow)
7aa45620e2f2178145a2eca58ccbab3cecff08fb Add SetupSQLStatements (Andrew Chow)
6636a2608a4e5906ee8092d5731595542261e0ad Implement SQLiteBatch::Close (Andrew Chow)
93825352a36456283bf87e39b5888363ee242f21 Implement SQLiteDatabase::Close (Andrew Chow)
a0de83372be83f59015cd3d61af2303b74fb64b5 Implement SQLiteDatabase::Open (Andrew Chow)
3bfa0fe1259280f8c32b41a798c9453b73f89b02 Initialize and Shutdown sqlite3 globals (Andrew Chow)
5a488b3d77326a0d957c1233493061da1b6ec207 Constructors, destructors, and relevant private fields for SQLiteDatabase/Batch (Andrew Chow)
ca8b7e04ab89f99075b093fa248919fd10acbdf7 Implement SQLiteDatabaseVersion (Andrew Chow)
7577b6e1c88a1a7b45ecf5c7f1735bae6f5a82bf Add SQLiteDatabase and SQLiteBatch dummy classes (Andrew Chow)
e87df8258090138d5c22ac46b8602b618620e8a1 Add sqlite to travis and depends (Andrew Chow)
54729f3f4e6765dfded590af5fb28c88331685f8 Add libsqlite3 (Andrew Chow)
Pull request description:
This PR adds a new class `SQLiteDatabase` which is a subclass of `WalletDatabase`. This provides access to a SQLite database that is used to store the wallet records. To keep compatibility with BDB and to complexity of the change down, we don't make use of many SQLite's features. We use it strictly as a key-value store. We create a table `main` which has two columns, `key` and `value` both with the type `blob`.
For new descriptor wallets, we will create a `SQLiteDatabase` instead of a `BerkeleyDatabase`. There is no requirement that all SQLite wallets are descriptor wallets, nor is there a requirement that all descriptor wallets be SQLite wallets. This allows for existing descriptor wallets to work as well as keeping open the option to migrate existing wallets to SQLite.
We keep the name `wallet.dat` for SQLite wallets. We are able to determine which database type to use by searching for specific magic bytes in the `wallet.dat` file. SQLite begins it's files with a null terminated string `SQLite format 3`. BDB has `0x00053162` at byte 12 (note that the byte order of this integer depends on the system endianness). So when we see that there is a `wallet.dat` file that we want to open, we check for the magic bytes to determine which database system to use.
I decided to keep the `wallet.dat` naming to keep things like backup script to continue to function as they won't need to be modified to look for a different file name. It also simplifies a couple of things in the implementation and the tests as `wallet.dat` is something that is specifically being looked for. If we don't want this behavior, then I do have another branch which creates `wallet.sqlite` files instead, but I find that this direction is easier.
ACKs for top commit:
Sjors:
re-utACK c4a29d0a90b821c443c10891d9326c534d15cf97
promag:
Tested ACK c4a29d0a90b821c443c10891d9326c534d15cf97.
fjahr:
reACK c4a29d0a90b821c443c10891d9326c534d15cf97
S3RK:
Re-review ACK c4a29d0a90b821c443c10891d9326c534d15cf97
meshcollider:
re-utACK c4a29d0a90b821c443c10891d9326c534d15cf97
hebasto:
re-ACK c4a29d0a90b821c443c10891d9326c534d15cf97, only rebased since my [previous](https://github.com/bitcoin/bitcoin/pull/19077#pullrequestreview-507743699) review, verified with `git range-diff master d18892dcc c4a29d0a9`.
ryanofsky:
Code review ACK c4a29d0a90b821c443c10891d9326c534d15cf97. I am honestly confused about reasons for locking into `wallet.dat` again when it's so easy now to use a clean format. I assume I'm just very dense, or there's some unstated reason, because the only thing that's been brought up are unrealistic compatibility scenarios (all require actively creating a wallet with non-default descriptor+sqlite option, then trying to using the descriptor+sqlite wallets with old software or scripts and ignoring the results) that we didn't pay attention to with previous PRs like #11687, which did not require any active interfaction.
jonatack:
ACK c4a29d0a90b821c443c10891d9326c534d15cf97, debug builds and test runs after rebase to latest master @ c2c4dbaebd9, some manual testing creating, using, unloading and reloading a few different new sqlite descriptor wallets over several node restarts/shutdowns.
Tree-SHA512: 19145732e5001484947352d3175a660b5102bc6e833f227a55bd41b9b2f4d92737bbed7cead64b75b509decf9e1408cd81c185ab1fb4b90561aee427c4f9751c
4dca7d0a98 appveyor: Enable multiwallet test (Chun Kuan Lee)
Pull request description:
Based on #14320
This PR enable multiwallet test on appveyor. Also re-enable symlink tests on Windows which is available after Windows Vista.
I disable these tests in #13964 because I suppose that Windows does not support symlink, but I was wrong.
Tree-SHA512: 852cd4dedf36ec9c34aff8926cb34e6a560aea0bb9170c7a2264fc292dbb605622d561568d8df39aeb90d3d2bb700901d218ea7e7c5e21d84827c40d6370b369
fa4632c41714dfaa699bacc6a947d72668a4deef test: Move boost/stdlib includes last (MarcoFalke)
fa488f131fd4f5bab0d01376c5a5013306f1abcd scripted-diff: Bump copyright headers (MarcoFalke)
fac5c373006a9e4bcbb56843bb85f1aca4d87599 scripted-diff: Sort test includes (MarcoFalke)
Pull request description:
When writing tests, often includes need to be added or removed. Currently the list of includes is not sorted, so developers that write tests and have `clang-format` installed will either have an unrelated change (sorting) included in their commit or they will have to manually undo the sort.
This pull preempts both issues by just sorting all includes in one commit.
Please be aware that this is **NOT** a change to policy to enforce clang-format or any other developer guideline or process. Developers are free to use whatever tool they want, see also #18651.
Edit: Also includes a commit to bump the copyright headers, so that the touched files don't need to be touched again for that.
ACKs for top commit:
practicalswift:
ACK fa4632c41714dfaa699bacc6a947d72668a4deef
jonatack:
ACK fa4632c41714dfaa, light review and sanity checks with gcc build and clang fuzz build
Tree-SHA512: 130a8d073a379ba556b1e64104d37c46b671425c0aef0ed725fd60156a95e8dc83fb6f0b5330b2f8152cf5daaf3983b4aca5e75812598f2626c39fd12b88b180
fab48da908f3f81135b9163edf5011d1e5f6ef6e test: Fix intermittent wallet_multiwallet issue with got_loading_error (MarcoFalke)
fa8e15f7b75e35846b86e8627a3612e31eb22dcb test: pep8 wallet_multiwallet.py (MarcoFalke)
Pull request description:
Failing the test after 10 iterations without a loading error is problematic because it may take 11 iterations to get a loading error.
Fix that by running until a loading error occurs, which should happen in almost all runs within the first 10 iterations.
ACKs for top commit:
ryanofsky:
Code review ACK fab48da908f3f81135b9163edf5011d1e5f6ef6e. This seems like a good workaround. I think more ideally think load and unload RPCs would not have racy status reporting (suggested previously https://github.com/bitcoin/bitcoin/pull/19300#pullrequestreview-435362710 and
Tree-SHA512: 6b80b26d916276efe2a01af93bca7dbf71a3e67db9d3deb15175070719bf7d1325a1410d93e74c0316942e388faa2ba185dc9d3759c82d1c73c3c509b9997f05
a6739cc86827759c543bf81f5532ec46e40549c3 rpc: Add specific error code for "wallet already loaded" (Wladimir J. van der Laan)
Pull request description:
Add a separate RPC error code for "wallet already loaded" to avoid having to match on message to detect this.
Requested by shesek for rust-bitcoinrpc.
If concept ACKed needs:
- [ ] Release note
- [x] A functional test (updated the existing test to make it pass, I think this is enough)
ACKs for top commit:
jonasschnelli:
Code Review ACK a6739cc86827759c543bf81f5532ec46e40549c3
promag:
Code review ACK a6739cc86827759c543bf81f5532ec46e40549c3.
Tree-SHA512: 9091872e6ea148aec733705d6af330f72a02f23b936b892ac28f9023da7430af6332418048adbee6014305b812316391812039e9180f7f3362d11f206c13b7d0
bfa9309ad606102f24c9bd3c33dfe78949f09418 Use COINBASE_MATURITY constant in functional tests. (Kiminuo)
525448df9dc2ab6b7e960ff138956ae3e2efdf60 Move COINBASE_MATURITY from `feature_nulldummy` test to `blocktools`. (Kiminuo)
Pull request description:
`COINBASE_MATURITY` constant was added to `feature_nulldummy` test in #21373. This PR moves the constant to `blocktools.py` file and uses the constant in more tests as suggested [here](https://github.com/bitcoin/bitcoin/pull/21373#discussion_r605418462).
Edit: Goal of this PR is to replace integer constants with `COINBASE_MATURITY` but not necessarily in *all* cases because that would mean to read and fully understand all tests. That's out of my time constraints. Any reports where `COINBASE_MATURITY` should be used are welcome though!
ACKs for top commit:
theStack:
ACK bfa9309ad606102f24c9bd3c33dfe78949f09418 🌇
Tree-SHA512: 01f04645f05a39028681f355cf3d42dd63ea3303f76d93c430e0fdce441934358a2d847a54e6068d61932f1b75e1d406f51859b057b3e4b569f7083915cb317f
92e28fa8b2590cce0e8f0adadae80e46cb63a9ef test: remove unused constants in functional tests (Sebastian Falbesoner)
Pull request description:
This mini-PR gets rid of constants in functional tests that are not used anymore. Found by [vulture ](https://pypi.org/project/vulture/)via the following script that has been lying around here locally for quite some time (I think it was once proposed by practicalswift, but I don't remember the concrete topic/PR):
```
#!/bin/sh
for F in $(git ls-files -- "*.py"); do vulture "$F" | grep "unused variable"; done
```
ACKs for top commit:
practicalswift:
ACK 92e28fa8b2590cce0e8f0adadae80e46cb63a9ef: patch looks correct.
Tree-SHA512: 16516abc8014207bcefdf0545dffaecff1fbba66f45b54c02371dcfd1f18194855c6b72598c11b5407009561eafe8048d47af3471f0efb1795d52477d5a0232e
89bdad5b25ae4ac03a486f729a5b58ae6f21946d RPC/Wallet: unloadwallet: Allow specifying wallet_name param matching RPC endpoint (Luke Dashjr)
Pull request description:
Allow specifying the `wallet_name` param to `unloadwallet` on RPC wallet endpoints, so long as it matches the endpoint wallet.
ACKs for top commit:
jonatack:
ACK 89bdad5b25ae4ac03a486f729a5b58ae6f21946d
MarcoFalke:
review ACK 89bdad5b25ae4ac03a486f729a5b58ae6f21946d
Tree-SHA512: efb399c33f7b5596870a26a8680f453ca47aa7a6db4e550f9435d13044f1c4bad0ae11e8f0205213409d08b75c4188c3be782e54aafab1f65b97eb8cf5c252a9
b1f59d55d920d2b35269b474762f94fec87bfb16 RPC/Wallet: unloadwallet: Clarify docs/error when both the RPC endpoint and wallet_name parameter specify a wallet (Luke Dashjr)
Pull request description:
Just documentation clarifications from #20448
ACKs for top commit:
MarcoFalke:
review ACK b1f59d55d920d2b35269b474762f94fec87bfb16
jonatack:
re-ACK b1f59d55d920d2b35269b474762f94fec87bfb16 per `git diff e8303a0 b1f59d5`
Tree-SHA512: ac068b0aa7ceed49496367fdd9425b59dbba18b56e89b26afc22a6c8ece51f0b92a169cacd55740b1cadab2b32f4f8e8700e609066ab7e59d3b53c7891da585e
58cfbc38e040925b51cb8d35d23b50e9cf06fb2a Ignoring (but warn) on duplicate -wallet parameters (Jonas Schnelli)
Pull request description:
I expect that there are many users with load on startup wallet definitions in `bitcoin.conf` or via startup CLI argument.
With the new `settings.json` r/w configuration file, users unloading and loading a wallet through the GUI or via the RPC calls might end up with a duplicate `-wallet` entry (one that still remains in bitcoin.conf or CLI) plus the new duplication in `settings.json` due to the unload/load.
Steps to reproduce
* create wallet (if via RPC set `load_on_startup` or unloadwallet/loadwallet then set `load_on_startup`).
* stop bitcoin
* start bitcoind again with same `--wallet=mywallet`
I guess it is acceptable to skip duplicates.
ACKs for top commit:
achow101:
Tested ACK 58cfbc38e040925b51cb8d35d23b50e9cf06fb2a
meshcollider:
Code review ACK 58cfbc38e040925b51cb8d35d23b50e9cf06fb2a
ryanofsky:
Code review ACK 58cfbc38e040925b51cb8d35d23b50e9cf06fb2a. Changes since previous review: rebased, tweaked warning message, squashed/fixed test
Tree-SHA512: f94e5a999bdd7dc291f0bc142911b0a8033929350d6f6a35b58c4a06a3c8f83147be0f0c402d4e946dedbbcc85b7e023b672c731b6d7a8984d4780017c961cfb
fa192952507dbe5f405abffce38b3556923ba271 test: Bump timeouts to avoid valgrind failures (MarcoFalke)
Pull request description:
This should fix ci timeout issues such as:
* https://travis-ci.org/github/bitcoin/bitcoin/jobs/661946972#L3109
* https://travis-ci.org/github/bitcoin/bitcoin/jobs/662521570#L4922
ACKs for top commit:
practicalswift:
ACK fa192952507dbe5f405abffce38b3556923ba271
Tree-SHA512: 150f804957575033a83fd47c68fd6adff2c11b110ec5803bd77f121256349805b595c39a3a5047738ec538d082ee38cebbcb6792c787ef22f56b8dd0d9618c1f
38677274f931088218eeb1f258077d3387f39c89 rpc: settxfee respects -maxtxfee wallet setting (Fabian Jahr)
bda84a08a0ac92dff6cadc99cf9bb8c3fadd7e13 rpc: Add documentation for deactivating settxfee (Fabian Jahr)
Pull request description:
~~Closes 18315~~
`settxfee` can be deactivated by passing 0 as the fee. That does not seem to be documented for the user so this PR adds it in the description. The return value of a simple boolean seems also too simplified given the multiple dimensions that this deactivation feature enables. I.e. it does not seem intuitive if the returned boolean shows that the call succeeded or if means that `settxfee` is active. My suggested solution is to change the return value to a JSON object that included the "active" state and the currently set fee rate.
Examples:
```
$ src/bitcoin-cli settxfee 0.0000000
{
"active": false,
"fee_rate": "0.00000000 BTC/kB"
}
$ src/bitcoin-cli settxfee 0.0001
{
"active": true,
"fee_rate": "0.00010000 BTC/kB"
}
```
ACKs for top commit:
MarcoFalke:
ACK 38677274f931088218eeb1f258077d3387f39c89, seems useful to error out early instead of later #16257🕍
jonatack:
ACK 38677274f931088218eeb
meshcollider:
LGTM, utACK 38677274f931088218eeb1f258077d3387f39c89
Tree-SHA512: 642813b5cf6612abb4b6cb63728081a6bd1659d809e0149c8f56060b6da7253fee989b3b202854f3051df3773c966799af30b612648c466b099f00590f356548
3d0a82cff8cbb809876e82dbe62d14d2adc07d94 devtools: Accomodate block-style copyright blocks (Ben Woosley)
0ef0e51fe4bb592e67255776b5a0ba04679fb8c4 lint: Bump flake8 to 3.7.8 (Ben Woosley)
838920704ad90a71cf288b700052503db8abb17e lint: Disable flake8 W504 warning (Ben Woosley)
b21680baf5391a602b295b9d7d0ef66553661cb9 test/contrib: Fix invalid escapes in regex strings (Ben Woosley)
Pull request description:
This is a second go at #15221, fixing new lints in:
W504 line break after binary operator
W605 invalid escape sequence
F841 local variable 'e' is assigned to but never used
This time around:
* One commit per rule, for easier review
* I went with the PEP-8 style of breaking before binary operators
* I looked into the raw regex newline issue, and found that raw strings with newlines embedded do work appropriately. E.g. run `re.match(r" \n ", " \n ")` to check this for yourself. `re.MULTILINE` exists to modify `^` and `$` in multiline scenarios, but all of these searches are per-line.
ACKs for top commit:
practicalswift:
ACK 3d0a82cff8cbb809876e82dbe62d14d2adc07d94 -- diff looks correct
Tree-SHA512: bea0c144cadd72e4adf2e9a4b4ee0535dd91a8e694206924cf8a389dc9253f364a717edfe9abda88108fbb67fda19b9e823f46822d7303c0aaa72e48909a6105
fac95398366f644911b58f1605e6bc37fb76782d qa: Run all tests even if wallet is not compiled (MarcoFalke)
faa669cbcd1fc799517b523b0f850e01b11bf40a qa: Premine to deterministic address with -disablewallet (MarcoFalke)
Pull request description:
Currently the test_runner would exit if the wallet was not compiled into the Bitcoin Core executable. However, a lot of the tests run without the wallet just fine and there is no need to globally require the wallet to run the tests.
Tree-SHA512: 63177260aa29126fd20f0be217a82b10b62288ab846f96f1cbcc3bd2c52702437703475d91eae3f8d821a3149fc62b725a4c5b2a7b3657b67ffcbc81532a03bb
661ac15a4a appveyor: Run functional tests on appveyor (Chun Kuan Lee)
2148c36b6e tests: Make it possible to run functional tests on Windows (Chun Kuan Lee)
Pull request description:
This PR do the following things:
- Make functional tests compatible with Windows
- Print color output in functional tests for Windows 10
- Run util and functional tests on appveyor
- Do not run symlink tests on Windows
Note:
- The wallet_multiwallet.py fail is unrelated to the test framework, it's a bug related to c++ code or maybe dependencies. `bitcoind` would exit with 0xC0000005(Access violation) during shutdown occasionally. Disable this for now.
- Not using `--failfast` because this is still in experimental. We should track if there is any other error.
- Disable ZMQ tests because the python zmq library could cause access violation sometimes.
- Disable `feature_notifications` because Bitcoin Core handles the command in different thread, whicha can cause a race condition.
Tree-SHA512: b76db137d264e62a5c130e1cbca7a2ca002a7a0f4153fa0b92c1ea6c9c09ef0533e11c49bdbd566c472d8ff59f245758feb5e5a6ec6cb6bb66a1c67bab5fa48a
ed2e18398b3ab657e98e3e1fe135cbf8dd94fda3 Remove fs::relative call and fix listwalletdir tests (João Barbosa)
Pull request description:
The implementation of `fs::relative` resolves symlinks which is not
intended in ListWalletDir. The replacement does what is required, and
`listwalletdir` RPC tests are fixed accordingly.
Also, `fs::recursive_directory_iterator` iteration is fixed to build
with boost 1.47.
Based on #14559
Tree-SHA512: 1da516226073f195285d10d9d9648c90cce0158c5d1eb9c31217bb4abb575cd37f07c00787c5a850554d6120bbc5a3cbc5cb47d4488b32ac6bcb52bc1882d600
4dca7d0a98 appveyor: Enable multiwallet test (Chun Kuan Lee)
Pull request description:
Based on #14320
This PR enable multiwallet test on appveyor. Also re-enable symlink
tests on Windows which is available after Windows Vista.
I disable these tests in #13964 because I suppose that Windows does
not support symlink, but I was wrong.
Tree-SHA512: 852cd4dedf36ec9c34aff8926cb34e6a560aea0bb9170c7a2264fc292dbb605622d561568d8df39aeb90d3d2bb700901d218ea7e7c5e21d84827c40d6370b369
d56a0689354fb814510c6c393f3e07ac9362dc1f docs: Add release notes for listwalletdir RPC (João Barbosa)
0cb3cad166bbeb75e9cc1512286453f8e7d4f717 qa: Add tests for listwalletdir RPC (João Barbosa)
cc3377360c417780f5cbd7bd69b438817a9d60be rpc: Add listwalletdir RPC (João Barbosa)
d1b03b8e5f04a2cc9ebb985bd9a1aebd2068f757 interfaces: Add getWalletDir and listWalletDir to Node (João Barbosa)
fc4db35bfd78d85d6b52d5da3d89696160658450 wallet: Add ListWalletDir utility (João Barbosa)
Pull request description:
`ListWalletDir` returns all available wallets in the current wallet
directory.
Based on MeshCollider work in pull #11485.
Tree-SHA512: 5843e3dbd1e0449f55bb8ea7c241a536078ff6ffcaad88ce5fcf8963971d48c78600fbc4f44919523b8a92329d5d8a5f567a3e0ccb0270fdd27366e19603a716
