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2022-02-08Merge bitcoin/bitcoin#24266: util: Avoid buggy ↵MarcoFalke
std::filesystem:::create_directories() call b9c113af754540341d9529532fbadb7525168102 util: Avoid buggy std::filesystem:::create_directories() call (Hennadii Stepanov) Pull request description: Compiled with some libstdc++ versions (e.g., on Ubuntu 20.04) [`std::filesystem:::create_directories()`](https://en.cppreference.com/w/cpp/filesystem/create_directory) call [fails](https://github.com/bitcoin/bitcoin/issues/24257#issue-1123753243) to handle symbol links properly. No behavior change in comparison to the [pre-20744](https://github.com/bitcoin/bitcoin/commit/c194293883fbb656779102309b2cb3e60889feff) master branch. Fixes bitcoin/bitcoin#24257. ACKs for top commit: ryanofsky: Code review ACK b9c113af754540341d9529532fbadb7525168102. Nice simplification and fix MarcoFalke: review ACK b9c113af754540341d9529532fbadb7525168102 🐬 Tree-SHA512: 79d940cfc1f68d9b0548fb2ab005e90850b54ac0fb3bb2940afd632d56288d92687579a3176bac3fd0ea3d2dae71e26444f8f7bdb87862414c12866ae5e857c4
2022-02-05util: Avoid buggy std::filesystem:::create_directories() callHennadii Stepanov
Compiled with some libstdc++ versions (e.g., on Ubuntu 20.04) std::filesystem:::create_directories() call fails to handle symbol links properly.
2022-02-04Re-enable util_datadir check disabled in #20744Ryan Ofsky
This should also fix an assert error if a -datadir with a trailing slash is used on windows. This appears to be a real error and regression introduced with #20744. On windows (or at least wine), fs calls that actuallly access the filesystem like fs::equivalent or fs::exists seem to treat directory paths with trailing slashes as not existing, so it's necessary to normalize these paths before using them. This fix adds a path::lexically_normal() call to the failing assert so it passes.
2022-02-03refactor: replace boost::filesystem with std::filesystemKiminuo
Warning: Replacing fs::system_complete calls with fs::absolute calls in this commit may cause minor changes in behaviour because fs::absolute no longer strips trailing slashes; however these changes are believed to be safe. Co-authored-by: Russell Yanofsky <russ@yanofsky.org> Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2022-01-26fs: consistently use fsbridge for {i,o}fstreamfanquake
Part of #20744, but this can be done now, and will simplify the diff.
2022-01-15build: disable external signer on Windowsfanquake
2021-12-30scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: * 2020: fa0074e2d82928016a43ca408717154a1c70a4db * 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2021-10-25scripted-diff: disable unimplemented ArgsManager BOOL/INT/STRING flagsRussell Yanofsky
This commit does not change behavior in any way. See previous commit for complete rationale, but these flags are being disabled because they aren't implemented and will otherwise break backwards compatibility when they are implemented. -BEGIN VERIFY SCRIPT- sed -i 's:\(ALLOW_.*\) \(//!< unimplemented\):// \1\2:' src/util/system.h sed -i '/DISALLOW_NEGATION.*scripted-diff/d' src/util/system.cpp git grep -l 'ArgsManager::ALLOW_\(INT\|STRING\)' | xargs sed -i 's/ArgsManager::ALLOW_\(INT\|STRING\)/ArgsManager::ALLOW_ANY | ArgsManager::DISALLOW_NEGATION/g' git grep -l 'ALLOW_BOOL' -- ':!src/util/system.h' | xargs sed -i 's/ALLOW_BOOL/ALLOW_ANY/g' -END VERIFY SCRIPT-
2021-10-25refactor: Add explicit DISALLOW_NEGATION ArgsManager flag to clarify flag usageRussell Yanofsky
Currently, ALLOW_{INT|BOOL|STRING} flags don't do any real validation, so current uses of these flags are misleading and will also break backwards compatibility whenever these flags are implemented in a future PR (draft PR is #16545). An additional complication is that while these flags don't do any real settings validation, they do affect whether setting negation syntax is allowed. Fix this mess by disabling ALLOW_{INT|BOOL|STRING} flags until they are implemented, and adding an unambiguous DISALLOW_NEGATION flag. This is done in two commits, with this commit adding the DISALLOW_NEGATION flag, and the next commit disabling the ALLOW_{INT|BOOL|STRING} flags.
2021-10-25refactor: Split InterpretOption into Interpret{Key,Value} functionsRussell Yanofsky
Co-authored-by: Anthony Towns <aj@erisian.com.au>
2021-10-05refactor: Block unsafe fs::path std::string conversion callsRussell Yanofsky
There is no change in behavior. This just helps prepare for the transition from boost::filesystem to std::filesystem by avoiding calls to methods which will be unsafe after the transaction to std::filesystem to due lack of a boost::filesystem::path::imbue equivalent and inability to set a predictable locale. Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Co-authored-by: Kiminuo <kiminuo@protonmail.com> Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2021-09-30Replace use of locale dependent atoi(…) with locale-independent ↵practicalswift
std::from_chars(…) (C++17) test: Add test cases for LocaleIndependentAtoi fuzz: Assert legacy atoi(s) == LocaleIndependentAtoi<int>(s) fuzz: Assert legacy atoi64(s) == LocaleIndependentAtoi<int64_t>(s)
2021-09-27scripted-diff: Rename overloaded int GetArg to GetIntArgRussell Yanofsky
Improve readability of code, simplify future scripted diff cleanup PRs, and be more consistent with naming for GetBoolArg. This will also be useful for replacing runtime settings type checking with compile time checking. -BEGIN VERIFY SCRIPT- git grep -l GetArg | xargs sed -i 's/GetArg(\([^)]*\( [0-9]\+\|-1\|port\|BaseParams().RPCPort()\|Params().GetDefaultPort()\|_TIMEOUT\|Height\|_WORKQUEUE\|_THREADS\|_CONNECTIONS\|LIMIT\|SigOp\|Bytes\|_VERSION\|_AGE\|_CHECKS\|Checks() ? 1 : 0\|_BANTIME\|Cache\|BLOCKS\|LEVEL\|Weight\|Version\|BUFFER\|TARGET\|WEIGHT\|TXN\|TRANSACTIONS\|ADJUSTMENT\|i64\|Size\|nDefault\|_EXPIRY\|HEIGHT\|SIZE\|SNDHWM\|_TIME_MS\)\))/GetIntArg(\1)/g' -END VERIFY SCRIPT- Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2021-09-09Merge bitcoin/bitcoin#22390: system: skip trying to set the locale on NetBSDfanquake
fdd71448e78f442ffd93a3a3398a5062eaba9f1b system: skip trying to set the locale on NetBSD (fanquake) Pull request description: Just treat it the same as the other BSDs. Fixes #17379. ACKs for top commit: laanwj: Code review ACK fdd71448e78f442ffd93a3a3398a5062eaba9f1b practicalswift: cr ACK fdd71448e78f442ffd93a3a3398a5062eaba9f1b Tree-SHA512: 5fe0a66f014279ad2683b548692a36af493377fb92d1f28b15dc4feef871190fe08ef40dcc4f5ba21a525fe365c42fb429fe4be0673a1e96db163af587c23204
2021-08-23Merge bitcoin/bitcoin#22622: util: Check if specified config file cannot be ↵MarcoFalke
opened 127b4608e9dbb8217c74c9332e82fcec8c326fa8 test: Check if specified config file cannot be opened (nthumann) 6bb54708e6457f21596793a7149dc6dfea1dc871 util: Check if specified config file cannot be opened (nthumann) Pull request description: Fixes https://github.com/bitcoin/bitcoin/issues/22612. When running e.g. `./src/bitcoind -datadir=/tmp/bitcoin -regtest -conf=/tmp/bitcoin/regtest/bitcoin.conf` and the specified config cannot be opened (doesn't exist, permission denied, ...), the initialization silently uses the default config. As voidburn already noted: > I can't think of a situation in which a config file is specified explicitly (in the startup options, as per service unit linked above), but inaccessible, where the fail condition should be to keep booting using defaults instead. With this patch applied, the initialization will fail immediately, if the specified config file cannot be opened. If no config file is explicitly specified, the behavior is unchanged. This not only affects `bitcoind`, but also `bitcoin-cli` and `bitcoin-qt`. In the example below the datadir is accessible, but the config file is not due to insufficient permissions: ``` $ ./src/bitcoind -datadir=/tmp/bitcoin -regtest --debug=1 -conf=/tmp/bitcoin/regtest/bitcoin.conf Error: Error reading configuration file: specified config file "/tmp/bitcoin/regtest/bitcoin.conf" could not be opened. ``` ACKs for top commit: 0xB10C: ACK 127b4608e9dbb8217c74c9332e82fcec8c326fa8 Zero-1729: tACK 127b4608e9dbb8217c74c9332e82fcec8c326fa8 theStack: Tested ACK 127b4608e9dbb8217c74c9332e82fcec8c326fa8 Tree-SHA512: 4fe487921485426f1d1da8d256c388af517b984b639d776aec7b159b3e23b669824093d3bdd31139d9415ed5f5de405b3e6a51b110c8ab471f12b9c99ac67cc1
2021-08-06refactor: Reuse MakeUnorderedList where possibleHennadii Stepanov
2021-08-04util: Check if specified config file cannot be openednthumann
2021-07-02system: skip trying to set the locale on NetBSDfanquake
Just treat it the same as the other BSDs. Fixes #17379.
2021-07-01build: Fix Boost Process compatibility with mingw-w64 compilerHennadii Stepanov
Boost 1.71 has a broken compatibility with mingw-w64 compiler due to the added __kernel_entry SAL annotations.
2021-06-18Remove unused OptionsCategory arg from AddCommandMarcoFalke
2021-06-16refactor: reduce #ifdef ENABLE_EXTERNAL_SIGNER usageSjors Provoost
In particular this make the node interface independent on whether external signer support is compiled.
2021-06-04util: Properly handle -noincludeconf on command lineMarcoFalke
This bug was introduced in commit fad0867d6ab9430070aa7d60bf7617a6508e0586. Unit test Co-Authored-By: Russell Yanofsky <russ@yanofsky.org>
2021-05-24Merge bitcoin/bitcoin#21850: Remove `GetDataDir(net_specific)` functionMarcoFalke
aca0e5dcdb174ef7e88b76910d6fffd633688235 Remove `GetDataDir(bool fNetSpecific = true)` function (Kiminuo) b3e67f20a02bcf43f20873029ce30617c95eb9da scripted-diff: Replace `GetDataDir(true)` calls with `gArgs.GetDataDirNet()` calls (Kiminuo) 4c3a5dcbfc3010965332ad568c3a70618c930ef3 scripted-diff: Replace `GetDataDir()` calls with `gArgs.GetDataDirNet()` calls (Kiminuo) 13bd8bb0536f008118b1de921654925ed9ce1da7 Make `ArgsManager.GetDataDirPath` private and drop needless suffix (Kiminuo) 4d8189f62076d47be182e709857774bc3921b334 scripted-diff: Change `ArgsManager.GetDataDirPath()` to `ArgsManager.GetDataDirBase()` in tests (Kiminuo) 0f53df47d5b8319fc71f3b87c15a115ff797fb50 Add `ArgsManager.GetDataDirBase()` and `ArgsManager.GetDataDirNet()` as an intended replacement for `ArgsManager.GetDataDirPath(net_identifier)` (Kiminuo) 716de29dd8672d28bfe0a08424e9958fe61054d2 Make `m_cached_blocks_path` mutable. Make `ArgsManager::GetBlocksDirPath()` const. (Kiminuo) Pull request description: This PR is a follow up PR to #21244. The PR attempts to move us an inch towards the [goal](https://github.com/bitcoin/bitcoin/pull/21244#discussion_r615307465) by removing `GetDataDir(net_specific)` and replacing it by `gArgs.GetDataDir(net_specific)` calls. The approach of this PR attempts to be similar to the one chosen in "De-globalize ChainstateManager" (#20158). The goal is to pass `ArgsManager` to functions (or ideally to have `ArgsManager` as a member of a class where needed; inspiration from here: #21789) instead of having it as a global variable (i.e. `gArgs`). **Notes:** * First commit makes `m_cached_blocks_path` `mutable` as was suggested [here](https://github.com/bitcoin/bitcoin/pull/21244#discussion_r615274095) but not fully applied in #21244. (`m_cached_datadir_path` and `m_cached_network_datadir_path` were marked as `mutable` in #21244) This commit can be in a separate PR too. * Other commits deal with removing of `GetDataDir(net_specific)` function. * This was originally part of #21244 but it was [left]((https://github.com/bitcoin/bitcoin/pull/21244#pullrequestreview-633779754)) for a follow up PR. * I think that the proposed changes show nicely where there is reliance on `gArgs` which is IMO a good thing. If you know about a better approach how to do this, please share it here. ACKs for top commit: hebasto: ACK aca0e5dcdb174ef7e88b76910d6fffd633688235 MarcoFalke: re-ACK aca0e5dcdb174ef7e88b76910d6fffd633688235 👃 Tree-SHA512: deec4d88edb32d7f4c818c3a74ffbb64709685819b88242dcf5dbaa1fb611f3ce2b29d2576ddb9e0dc5e75288e43538968224008c0a80e7149fc81c309f7c9da
2021-05-24Remove `GetDataDir(bool fNetSpecific = true)` functionKiminuo
2021-05-24Make `ArgsManager.GetDataDirPath` private and drop needless suffixKiminuo
2021-05-24Add `ArgsManager.GetDataDirBase()` and `ArgsManager.GetDataDirNet()` as an ↵Kiminuo
intended replacement for `ArgsManager.GetDataDirPath(net_identifier)`
2021-05-22Make `m_cached_blocks_path` mutable. Make `ArgsManager::GetBlocksDirPath()` ↵Kiminuo
const.
2021-05-21Cleanup -includeconf error messageMarcoFalke
Remove the erroneous trailing newline '\n'. Also, print only the first value to remove needless redundancy in the error message.
2021-05-21Fix crash when parsing command line with -noincludeconf=0MarcoFalke
2021-04-18Change ClearDataDirPathCache() to ArgsManager.ClearPathCache().Kiminuo
2021-04-18Change GetBlocksDir() to ArgsManager.GetBlocksDirPath().Kiminuo
2021-04-17Move GetDataDir(fNetSpecific) implementation to ArgsManager.Kiminuo
2021-04-17Move StripRedundantLastElementsOfPath before ArgsManager class.Kiminuo
2021-03-15scripted-diff: remove Optional & nulloptfanquake
-BEGIN VERIFY SCRIPT- git rm src/optional.h sed -i -e 's/Optional</std::optional</g' $(git grep -l 'Optional<' src) sed -i -e 's/{nullopt}/{std::nullopt}/g' $(git grep -l 'nullopt' src) sed -i -e 's/ nullopt;/ std::nullopt;/g' $(git grep -l 'nullopt' src) sed -i -e 's/ nullopt)/ std::nullopt)/g' $(git grep -l 'nullopt' src) sed -i -e 's/(nullopt)/(std::nullopt)/g' $(git grep -l 'nullopt' src) sed -i -e 's/ nullopt,/ std::nullopt,/g' $(git grep -l 'nullopt' src) sed -i -e 's/? nullopt :/? std::nullopt :/g' $(git grep -l 'nullopt' src) sed -i -e 's/: nullopt}/: std::nullopt}/g' $(git grep -l 'nullopt' src) sed -i -e '/optional.h \\/d' src/Makefile.am sed -i -e '/#include <optional.h>/d' src/test/fuzz/autofile.cpp src/test/fuzz/buffered_file.cpp src/test/fuzz/node_eviction.cpp sed -i -e 's/#include <optional.h>/#include <optional>/g' $(git grep -l '#include <optional.h>' src) -END VERIFY SCRIPT-
2021-03-11scripted-diff: remove MakeUnique<T>()fanquake
-BEGIN VERIFY SCRIPT- git rm src/util/memory.h sed -i -e 's/MakeUnique/std::make_unique/g' $(git grep -l MakeUnique src) sed -i -e '/#include <util\/memory.h>/d' $(git grep -l '#include <util/memory.h>' src) sed -i -e '/util\/memory.h \\/d' src/Makefile.am -END VERIFY SCRIPT-
2021-02-21configure: add --enable-external-signerSjors Provoost
This option replaces --with-boost-process This prepares external signer support to be disabled by default. It adds a configure option to enable this feature and to check if Boost::Process is present. This also exposes ENABLE_EXTERNAL_SIGNER to the test suite via test/config.ini
2021-02-04Introduce GetUniquePath(base) helper method to replace ↵Kiminuo
boost::filesystem::unique_path() which is not available in std::filesystem.
2021-01-21util: Add ArgsManager::GetCommand() and use it in bitcoin-walletMarcoFalke
Co-Authored-by: Anthony Towns <aj@erisian.com.au>
2021-01-15Replace fs::absolute calls with AbsPathJoin callsKiminuo
This adds better test coverage and will make it easier in #20744 to remove our dependency on the two-argument boost::filesystem::absolute() function which does not have a direct equivalent in C++17.
2021-01-07Merge #14501: Fix possible data race when committing block filesWladimir J. van der Laan
ef712298c3f8bc2afdad783f05080443b72b3f77 util: Check for file being NULL in DirectoryCommit (Luke Dashjr) 457490403853321d308c6ca6aaa90d6f8f29b4cf Fix possible data race when committing block files (Evan Klitzke) 220bb16cbee5b91d0bc0fcc6c71560d631295fa5 util: Introduce DirectoryCommit commit function to sync a directory (Evan Klitzke) ce5cbaea63ad4ea78e533bdb14f47f414061ae7f util.h: Document FileCommit function (Evan Klitzke) 844d650eea3bd809884cc5dd996a388bdc58314e util: Prefer Mac-specific F_FULLSYNC over fdatasync in FileCommit (Evan Klitzke) f6cec0bcaf560fa310853ad3fe17022602b63d5f util: Refactor FileCommit from an #if sequence nested in #else, to a sequence of #elif (Evan Klitzke) Pull request description: Reviving #12696 ACKs for top commit: laanwj: Code review ACK ef712298c3f8bc2afdad783f05080443b72b3f77 Tree-SHA512: 07d650990ef4c18d645dee3f9a199a940683ad17557d79d93979a76c4e710d8d70e6eae01d1a5991494a24a7654eb7db868be0c34a31e70b2509945d95bc9cce
2020-11-02Merge #20080: Strip any trailing `/` in -datadir and -blocksdir pathsSamuel Dobson
ad5cef5dfdd5802fc187a52e74d940a52f420a51 doc: Update data directory path comments (Hennadii Stepanov) b19e88230f0e93e95e883e65376963cb9c36f606 util: Add StripRedundantLastElementsOfPath function (Hennadii Stepanov) Pull request description: Wallet names in `listwalletdir` RPC are correct now, even if the `-datadir` path has any number of trailing `/`. This PR is an alternative to #19933. Fixes #19928. ACKs for top commit: MarcoFalke: review ACK ad5cef5dfd 🔙 promag: Code review ACK ad5cef5dfdd5802fc187a52e74d940a52f420a51. meshcollider: Code review + test run ACK ad5cef5dfdd5802fc187a52e74d940a52f420a51 Tree-SHA512: bccabbd6c18243d48d15b2b27201cc0f5984623dcbc635c8740cf74523f359844c36eadd40391142874fcf452a43880bb6afbf89815ae736e499f9a98143a661
2020-10-27doc: Update data directory path commentsHennadii Stepanov
2020-10-27util: Add StripRedundantLastElementsOfPath functionHennadii Stepanov
Co-authored-by: saibato <saibato.naga@pm.me> Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2020-10-19Merge #19624: Warn on unknown rw_settingsMarcoFalke
fa48405ef84985e5a9d38ec38e90d16596ea45b5 Warn on unknown rw_settings (MarcoFalke) Pull request description: Log a warning to debug log if unknown settings are encountered. This should probably only ever happen when the software is upgraded. Something similar is already done for the command line and config file. See: * test: Add test for unknown args #16234 (commit fa7dd88b71a1c6641bd450fae29a4a31849b1afd) ACKs for top commit: ryanofsky: Code review ACK fa48405ef84985e5a9d38ec38e90d16596ea45b5. Looks good and I could see this being helpful for debugging. Thanks for taking suggestions Tree-SHA512: cec7d88adf84fa0a842f56b26245157736eb50df433db951e622ea07fd145b899822b24cdab1d8b36c066415ce4f0ef09b493fa8a8d691532822a59c573aafa7
2020-10-06util: Do not use gArgs global in ArgsManager member functionsHennadii Stepanov
2020-09-21Merge #18267: BIP-325: Signet [consensus]Wladimir J. van der Laan
8258c4c0076bb5f27efdc117a04b27fcd6dd00b2 test: some sanity checks for consensus logic (Anthony Towns) e47ad375bf17557f805bd206e789b8db78c6338a test: basic signet tests (Karl-Johan Alm) 4c189abdc452f08dfa758564b5381bc78c42d481 test: add small signet fuzzer (practicalswift) ec9b25d046793be50da1c11ba61d1b4b13b295b0 test: signet network selection tests (Karl-Johan Alm) 3efe298dccb248f25d6b01ab6a80b1cd6c9e1a1e signet: hard-coded parameters for Signet Global Network VI (2020-09-07) (Karl-Johan Alm) c7898bca4e1ccbc6edafd3b72eaf80df38e3af32 qt: update QT to support signet network (Karl-Johan Alm) a8de47a1c9033fac3355590f1fe2158a95011bb3 consensus: add signet validation (Karl-Johan Alm) e8990f121405af8cd539b904ef082439261e6c93 add signet chain and accompanying parameters (Karl-Johan Alm) 404682b7cdb54494e7c98f0ba0cac8b51f379750 add signet basic support (signet.cpp) (Karl-Johan Alm) a2147d7dadec1febcd9c2b8ebbbf78dce6d0556b validation: move GetWitnessCommitmentIndex to consensus/validation (Karl-Johan Alm) Pull request description: This PR is a part of BIP-325 (https://github.com/bitcoin/bips/blob/master/bip-0325.mediawiki), and is a sub-PR of #16411. * Signet consensus (this) * Signet RPC tools (pending) * Signet utility scripts (contrib/signet) (pending) ACKs for top commit: jonatack: re-ACK 8258c4c0076bb5f27efdc117a04b27fcd6dd00b per `git diff dbeea65 8258c4c`, only change since last review is updated `-signet*` config option naming. fjahr: re-ACK 8258c4c laanwj: ACK 8258c4c0076bb5f27efdc117a04b27fcd6dd00b2 MarcoFalke: Approach ACK 8258c4c007 🌵 Tree-SHA512: 5d158add96755910837feafa8214e13695b769a6aec3a2da753cf672618bef377fac43b0f4b772a87b25dd9f0c1c9b29f2789785d7a7d47a155cdcf48f7c975d
2020-09-18add signet chain and accompanying parametersKarl-Johan Alm
Co-authored-by: Anthony Towns <aj@erisian.com.au>
2020-08-31Merge #19803: Bugfix: Define and use HAVE_FDATASYNC correctly outside LevelDBfanquake
c4b85ba704a1b5257dc82786a84f676bacb7b027 Bugfix: Define and use HAVE_FDATASYNC correctly outside LevelDB (Luke Dashjr) Pull request description: Fixes a bug introduced in #19614 The LevelDB-specific fdatasync check was only using `AC_SUBST`, which works for Makefiles, but doesn't define anything for C++. Furthermore, the #define is typically 0 or 1, never undefined. This fixes both issues by defining it and checking its value instead of whether it is merely defined. Pulled out of #14501 by fanquake's request ACKs for top commit: fanquake: ACK c4b85ba704a1b5257dc82786a84f676bacb7b027 - thanks for catching and fixing my mistake. laanwj: Code review ACK c4b85ba704a1b5257dc82786a84f676bacb7b027 Tree-SHA512: 91d5d426ba000b4f3ee7e2315635e24bbb23ceff16269ddf4f65a63d25fc9e9cf94a3b236eed2f8031cc36ddcf78aeb5916efcb244f415943a8a12f907ede8f9
2020-08-28Warn on unknown rw_settingsMarcoFalke
2020-08-25util: Check for file being NULL in DirectoryCommitLuke Dashjr