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40 2019-07-11T02:55:07 <bitcoin-git> [bitcoin] fanquake opened pull request #16370: depends: cleanup package configure flags (master...not_so_great_configure_cleanup) https://github.com/bitcoin/bitcoin/pull/16370
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52 2019-07-11T04:31:17 <bitcoin-git> [bitcoin] fanquake opened pull request #16371: trivial: build: ignore osx_volname & add it to clean-local (master...ignore_osx_volname) https://github.com/bitcoin/bitcoin/pull/16371
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134 2019-07-11T12:41:13 <jnewbery> provoostenator: from the base bitcoin directory: ./test/functional/test_runner.py $(for f in test/functional/wallet*; do echo $f | xargs -n 1 basename; done)
135 2019-07-11T12:41:56 <provoostenator> jnewbery: thanks!
136 2019-07-11T12:44:36 <jnewbery> better: ./test/functional/test_runner.py $(for f in test/functional/wallet*; do basename $f; done)
137 2019-07-11T12:44:53 <jnewbery> or you could just cd to test/functional I suppose :)
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147 2019-07-11T13:34:11 <provoostenator> cd'ing into test/functional is suboptimal, because I often do: make -j20 && make check && test/functional/...
148 2019-07-11T13:37:48 <shesek> provoostenator, I don't know what's the context here, but cd'ing inside a subshell might be helpful, e.g. make -j20 && make check && (cd test/functional/ && foobar)
149 2019-07-11T13:38:16 <shesek> this will keep the same cwd in your shell
150 2019-07-11T13:38:39 * luke-jr wonders why make check doesn't run the functional tests ;)
151 2019-07-11T13:39:28 <wumpus> *originally* because the functional tests required python whereas the rest of the build did not
152 2019-07-11T13:39:55 <luke-jr> could skip them when Python isn't found
153 2019-07-11T13:39:57 <wumpus> this hasn't been the case for a long time
154 2019-07-11T13:40:10 <luke-jr> no?
155 2019-07-11T13:40:29 <wumpus> configure doesn't even pass without python, does it?
156 2019-07-11T13:40:45 <provoostenator> shesek: cool!
157 2019-07-11T13:41:49 <provoostenator> make check indeed requires (a non messed up) python somewhere along the way
158 2019-07-11T13:43:15 <luke-jr> wumpus: I thought it did
159 2019-07-11T13:43:34 <luke-jr> I guess probably nobody is testing it without Python
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169 2019-07-11T14:02:52 <wumpus> i'm fine with having python as required dependency of the project, it has become the de-facto standard cross-platform scripting language
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179 2019-07-11T14:30:13 <luke-jr> wumpus: there are platforms without it (eg, Android)
180 2019-07-11T14:30:25 <luke-jr> Perl still seems to be a bit more ubiquitous
181 2019-07-11T14:30:46 <luke-jr> I guess the most portable is POSIX sh
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185 2019-07-11T14:42:58 <wumpus> definitely not saying that it's the *most portable*, but it seems a good compromise nowadays
186 2019-07-11T14:44:06 <wumpus> oh yes and i meant 'required build time dependency', not run-time dependency, native android has no gcc and toolchains either so as a build platform it's useless anyway :)
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190 2019-07-11T14:58:20 <provoostenator> Some thoughs on how to apply achow101's The Box to hardware wallets: https://github.com/bitcoin/bitcoin/pull/14912#issuecomment-510520757
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233 2019-07-11T17:52:10 <instagibbs> provoostenator, cool thanks
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240 2019-07-11T18:04:11 <bitcoin-git> [bitcoin] instagibbs opened pull request #16373: Add bumpfee option to return PSBT instead of commiting to wallet (master...bump_psbt) https://github.com/bitcoin/bitcoin/pull/16373
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252 2019-07-11T18:42:35 <wumpus> meeting in about 15 minutes
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258 2019-07-11T19:00:04 <wumpus> #startmeeting
259 2019-07-11T19:00:04 <lightningbot> Meeting started Thu Jul 11 19:00:04 2019 UTC. The chair is wumpus. Information about MeetBot at http://wiki.debian.org/MeetBot.
260 2019-07-11T19:00:04 <lightningbot> Useful Commands: #action #agreed #help #info #idea #link #topic.
261 2019-07-11T19:00:21 <wumpus> #bitcoin-core-dev Meeting: wumpus sipa gmaxwell jonasschnelli morcos luke-jr sdaftuar jtimon cfields petertodd kanzure bluematt instagibbs phantomcircuit codeshark michagogo marcofalke paveljanik NicolasDorier jl2012 achow101 meshcollider jnewbery maaku fanquake promag provoostenator aj Chris_Stewart_5 dongcarl gwillen jamesob ken281221 ryanofsky gleb moneyball kvaciral
262 2019-07-11T19:00:22 <kanzure> hi
263 2019-07-11T19:00:27 <achow101> hi
264 2019-07-11T19:00:34 <jamesob> hi
265 2019-07-11T19:00:36 <sdaftuar> hi
266 2019-07-11T19:01:00 <wumpus> looks like there have been no proposed topics in https://gist.github.com/moneyball/071d608fdae217c2a6d7c35955881d8a
267 2019-07-11T19:01:10 <wumpus> does anyone have any last minute suggestions?
268 2019-07-11T19:01:19 <sipa> hi
269 2019-07-11T19:01:34 <midnightmagic> hello! \o/
270 2019-07-11T19:01:34 <wumpus> hi
271 2019-07-11T19:01:44 <meshcollider> hi
272 2019-07-11T19:02:02 <instagibbs> hi!
273 2019-07-11T19:02:23 <wumpus> #topic High priority for review
274 2019-07-11T19:02:29 <wumpus> https://github.com/bitcoin/bitcoin/projects/8
275 2019-07-11T19:02:54 <wumpus> 5 blockers, and 5 things chasing concept ACK
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277 2019-07-11T19:03:45 <wumpus> anything to add/remove?
278 2019-07-11T19:04:51 <sipa> seems not
279 2019-07-11T19:04:55 <wumpus> no...
280 2019-07-11T19:05:08 <wumpus> that's a short meeting I suppose then
281 2019-07-11T19:05:15 <midnightmagic> :-)
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283 2019-07-11T19:05:54 <sipa> no wallet meeting tomorrow, right?
284 2019-07-11T19:06:09 <sdaftuar> perhaps people can discuss what they're working on, if there's nothing else to discuss and anyone is inclined to share
285 2019-07-11T19:06:09 <achow101> sipa: right
286 2019-07-11T19:06:23 <sipa> if not, i have a small wallet related topic
287 2019-07-11T19:06:24 <jamesob> ah can we add https://github.com/bitcoin/bitcoin/pull/16194 ?
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289 2019-07-11T19:06:34 <jamesob> at this rate assumeutxo'll be done by 2028
290 2019-07-11T19:06:48 <sdaftuar> so you're saying it's going to be done at some point :)
291 2019-07-11T19:06:49 <instagibbs> jamesob, woah there, why so optimistic
292 2019-07-11T19:07:02 <jamesob> good points
293 2019-07-11T19:07:15 <wumpus> jamesob:sure
294 2019-07-11T19:07:22 <jamesob> thanks
295 2019-07-11T19:08:01 <sipa> topic suggestion: explicit privkey derivation through descriptors, or generic support for all signingproviders?
296 2019-07-11T19:08:27 <wumpus> #topic explicit privkey derivation through descriptors, or generic support for all signingproviders?
297 2019-07-11T19:09:22 <sipa> so, right now (and correct me if i'm wrong), i think the only way to get a private key for a xpub-derived key, is by having a descriptor that encapsulates it, and then expanding it at the right position
298 2019-07-11T19:10:15 <sipa> which is a weird restriction i think; signingproviders can contain keys, and derivation paths for derived pubkeys... they have all the information necessary to compute derived privkeys in general
299 2019-07-11T19:10:41 <sipa> i'm suggesting this because i'd like a bitcoin-psbt tool that you just give psbts and utxos and descriptors and keys and figures out what it can do
300 2019-07-11T19:11:03 <sipa> but if a psbt contains a pubkey derivation field, and you have one of the parent privkeys available, we *should* have enough to sign
301 2019-07-11T19:11:15 <sipa> but afaik the current structure doesn't permit that
302 2019-07-11T19:11:31 <achow101> sipa: you'd be missing the chaincode
303 2019-07-11T19:11:32 <sipa> achow101, meshcollider: does this make any sense?
304 2019-07-11T19:12:12 <sipa> achow101: ugh right... thanks :)
305 2019-07-11T19:12:17 <sipa> it's not that easy
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307 2019-07-11T19:13:30 <sipa> i guess end of topic, back to drawing board :)
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309 2019-07-11T19:14:23 <sipa> ack sdaftuar's topic to share what people are working on
310 2019-07-11T19:14:26 <meshcollider> That seems like a weird situation to be in anyway, if you have a descriptor and it's private keys in your wallet then why wouldn't you have included the privkey in the descriptor in the first place
311 2019-07-11T19:15:12 <sipa> meshcollider: yeah but from a generic psbt perspective, if you have an xprv for example, and a psbt that claims the need for a key derived from it... it feels like you should be able to use it
312 2019-07-11T19:16:28 <sipa> i think the point is that psbt assumes your "keystore" consists of xpubs/xprvs more than it assumes just individual leaf keys
313 2019-07-11T19:18:19 <sipa> but i'll come up with something else :)
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315 2019-07-11T19:19:27 <wumpus> #topic what people are working on
316 2019-07-11T19:20:08 <wumpus> feel free to say something about what you're working on, or want to review-beg for a PR etc
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318 2019-07-11T19:20:40 * sipa working mostly on miniscript, still a lot of design and proof of concept... no PRable code yet
319 2019-07-11T19:20:58 <achow101> i'm working on native descriptor wallets (take 2) based on the SPKManager stuff
320 2019-07-11T19:21:22 <sdaftuar> i'm working on an ATMP refactor to support package relay, and generally working on p2p improvements
321 2019-07-11T19:21:54 <sipa> cool
322 2019-07-11T19:21:55 <instagibbs> in review mode these days, focusing on wallet. With proper motivation you can bug me to review your scary p2p/consensus code :)
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324 2019-07-11T19:23:59 <sdaftuar> i'm also happy to be pinged to review (if anyone has a PR they think i should look at)
325 2019-07-11T19:24:08 <wumpus> thanks for sharing everyone; I'm pretty much in review mode too at the moment
326 2019-07-11T19:25:33 <wumpus> I think that concludes the meeting, maybe it's good to have this as recurring topic like "high priority for review"
327 2019-07-11T19:25:40 <sdaftuar> +1
328 2019-07-11T19:25:44 <sipa> agree
329 2019-07-11T19:25:53 <wumpus> #endmeeting
330 2019-07-11T19:25:53 <lightningbot> Meeting ended Thu Jul 11 19:25:53 2019 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
331 2019-07-11T19:25:53 <lightningbot> Minutes: http://www.erisian.com.au/meetbot/bitcoin-core-dev/2019/bitcoin-core-dev.2019-07-11-19.00.html
332 2019-07-11T19:25:53 <lightningbot> Minutes (text): http://www.erisian.com.au/meetbot/bitcoin-core-dev/2019/bitcoin-core-dev.2019-07-11-19.00.txt
333 2019-07-11T19:25:53 <lightningbot> Log: http://www.erisian.com.au/meetbot/bitcoin-core-dev/2019/bitcoin-core-dev.2019-07-11-19.00.log.html
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336 2019-07-11T19:32:03 <achow101> sipa: meshcollider: in native descriptor wallets, do you think it makes sense to populate a CKeyMetadata for each scriptpubkey? I don't think that really makes sense, but I feel like it's necessary for getaddressinfo to give usable info. or is just the descriptor in getaddressinfo enough?
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338 2019-07-11T19:35:08 <achow101> also, does key birth time really matter?
339 2019-07-11T19:35:24 <instagibbs> key time affects some rescan logic IIRC
340 2019-07-11T19:35:52 <instagibbs> maybe not anymore though...
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342 2019-07-11T19:35:57 <achow101> only the time of the first key
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344 2019-07-11T19:37:14 <achow101> afaik individual key birth times are only used in getaddressinfo and dumpwallet
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348 2019-07-11T19:40:45 <wumpus> right, the key birth is only used to determine where to start rescanning
349 2019-07-11T19:41:35 <sipa> achow101: is it just for birth times?
350 2019-07-11T19:42:13 <achow101> sipa: I don't think the keymetadata is being used for anything else. it's just for information to display to the user (or in dumpwallet)
351 2019-07-11T19:42:25 <sipa> i think in a descriptor wallet individual keys shouldn't have birth times; the descriptor/record itself can have a birth time though
352 2019-07-11T19:42:36 <achow101> right
353 2019-07-11T19:42:58 <instagibbs> the descriptor already stores everything else except the derivation index, which I presume can be calculated somehow
354 2019-07-11T19:43:32 <achow101> instagibbs: we will be storing in memory the index for each scriptpubkey generated
355 2019-07-11T19:43:47 <achow101> so given a scriptpubkey, we can find the index and get the rest from the descriptor
356 2019-07-11T19:43:57 <wumpus> CKeyMetadata does have some other fields too: version, hdKeypath, hd_seed_id, key_origin
357 2019-07-11T19:44:24 <wumpus> don't seem to be relevant there though
358 2019-07-11T19:44:25 <sipa> all the other information becomes implicit
359 2019-07-11T19:44:35 <wumpus> right
360 2019-07-11T19:44:59 <achow101> version is just ckeymetadata version. the hd stuff can come from the descriptor itself
361 2019-07-11T19:45:18 <sipa> yup
362 2019-07-11T19:45:43 <instagibbs> nice
363 2019-07-11T19:46:17 <instagibbs> achow101, these scriptpubkeys are never dumped from memory? ever-growing in other words?
364 2019-07-11T19:46:17 <achow101> my idea was to have a GetMetadata function which the ScriptPubKeyMan would populate when a metadat was requested instead of storing metadata. but this doesn't really work well when a descriptor isn't just a single key descriptor
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366 2019-07-11T19:46:47 <instagibbs> I mean we already do that today, so stupid question :)
367 2019-07-11T19:47:03 <achow101> instagibbs: yes, but we already do that for keys, so...
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373 2019-07-11T20:00:44 <bitcoin-git> [bitcoin] laanwj pushed 4 commits to master: https://github.com/bitcoin/bitcoin/compare/4fcccdac785e...28d1353f4837
374 2019-07-11T20:00:45 <bitcoin-git> bitcoin/master af5d1b5 Jonas Schnelli: Add ChaCha20Poly1305@Bitcoin AEAD implementation
375 2019-07-11T20:00:45 <bitcoin-git> bitcoin/master 99aea04 Jonas Schnelli: Add ChaCha20Poly1305@Bitcoin tests
376 2019-07-11T20:00:46 <bitcoin-git> bitcoin/master bb326ad Jonas Schnelli: Add ChaCha20Poly1305@Bitcoin AEAD benchmark
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379 2019-07-11T20:01:25 <bitcoin-git> [bitcoin] laanwj merged pull request #15649: Add ChaCha20Poly1305@Bitcoin AEAD (master...2019/03/chachapoly1305) https://github.com/bitcoin/bitcoin/pull/15649
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385 2019-07-11T20:16:53 <instagibbs> is there scripted-diff docs somewhere in the repo?
386 2019-07-11T20:21:10 <wumpus> I don't think so, but it's simply sh script, best way to find examples would be to look at 'git log --grep="BEGIN VERIFY SCRIPT"'
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390 2019-07-11T20:29:46 <bitcoin-git> [bitcoin] jonatack opened pull request #16374: test: Enable passing wildcard test names to test runner from root (master...enable-passing-wildcard-files-to-test-runner-from-root) https://github.com/bitcoin/bitcoin/pull/16374
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392 2019-07-11T20:30:21 <instagibbs> ok so it's just a thing you can run in your own repo, check the diff, got it, not validated in travis or anything
393 2019-07-11T20:30:32 <sipa> it is validated by travis
394 2019-07-11T20:30:54 <sipa> travis reruns the script, and verifies that the commit exactly matches the diff it applies to the repo
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396 2019-07-11T20:31:24 <instagibbs> ok, so the magic to make this happen is -BEGIN VERIFY SCRIPT-\n<scripttorun>\n-END VERIFY SCRIPT- in commit message?
397 2019-07-11T20:31:40 <wumpus> yes, exactly
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399 2019-07-11T20:33:53 <instagibbs> lies, here it is: https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#scripted-diffs
400 2019-07-11T20:33:54 <instagibbs> :)
401 2019-07-11T20:34:13 <wumpus> :-)
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403 2019-07-11T20:41:30 <wumpus> instagibbs: your comments on #16227 aren't blocking right? (I was just about to merge it)
404 2019-07-11T20:41:32 <gribble> https://github.com/bitcoin/bitcoin/issues/16227 | Refactor CWallets inheritance chain by achow101 · Pull Request #16227 · bitcoin/bitcoin · GitHub
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406 2019-07-11T20:42:05 <instagibbs> no! merge please
407 2019-07-11T20:42:21 <instagibbs> one was confirming proper behavior based on read of code, and one is mu-nit comment thing
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409 2019-07-11T20:43:30 <bitcoin-git> [bitcoin] laanwj pushed 9 commits to master: https://github.com/bitcoin/bitcoin/compare/28d1353f4837...735d6b57e795
410 2019-07-11T20:43:30 <bitcoin-git> bitcoin/master 1b699a5 Andrew Chow: Add HaveKey and HaveCScript to SigningProvider
411 2019-07-11T20:43:31 <bitcoin-git> bitcoin/master c7797ec Andrew Chow: Remove CKeyStore and squash into CBasicKeyStore
412 2019-07-11T20:43:32 <bitcoin-git> bitcoin/master a913e3f Andrew Chow: Move HaveKey static function from keystore to rpcwallet where it is used
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415 2019-07-11T20:44:20 <bitcoin-git> [bitcoin] laanwj merged pull request #16227: Refactor CWallet's inheritance chain (master...rm-keystores) https://github.com/bitcoin/bitcoin/pull/16227
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419 2019-07-11T20:50:32 <achow101> \o/
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421 2019-07-11T20:50:58 <achow101> this is going far faster than I expected
422 2019-07-11T20:51:27 <wumpus> wallet development seems to be going quite quickly lately
423 2019-07-11T20:51:45 <achow101> wumpus: #16301 for hi prio please
424 2019-07-11T20:51:47 <gribble> https://github.com/bitcoin/bitcoin/issues/16301 | Use CWallet::Import* functions in all import* RPCs by achow101 · Pull Request #16301 · bitcoin/bitcoin · GitHub
425 2019-07-11T20:52:00 <wumpus> it used to be impossible to find reviewers for wallet changes
426 2019-07-11T20:52:38 <wumpus> achow101: done
427 2019-07-11T20:54:19 <instagibbs> wallet gang
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437 2019-07-11T21:10:28 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #13903: Significantly reduce GetTransaction cs_main locking (TheBlueMatt) (master...Mf1808-ReadBlockFromDiskCsMain) https://github.com/bitcoin/bitcoin/pull/13903
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440 2019-07-11T21:12:14 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #13947: Dandelion transaction relay (BIP 156) (master...Mf1804-dandelion) https://github.com/bitcoin/bitcoin/pull/13947
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467 2019-07-11T22:14:18 <bitcoin-git> [bitcoin] antigaius opened pull request #16375: secp256k1/src/tests.c: Properly handle sscanf return value. (master...2019-07-12) https://github.com/bitcoin/bitcoin/pull/16375
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470 2019-07-11T22:18:11 <bitcoin-git> [bitcoin] antigaius closed pull request #16375: secp256k1/src/tests.c: Properly handle sscanf return value. (master...2019-07-12) https://github.com/bitcoin/bitcoin/pull/16375
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490 2019-07-11T23:27:26 <fanquake> I like the âwhat is everyone working onâ idea for the meeting as well. ð
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