2d8ad2f99710a8981e33fe2d6ce834b0076c4e80 gui: Enable console line edit on setClientModel (João Barbosa)
Pull request description:
Make console line edit disable by default, and only enable once `RPCConsole::setClientModel` is called.
Fixes#16119.
ACKs for commit 2d8ad2:
fanquake:
tACK 2d8ad2f997 on macOS.
Tree-SHA512: 1418ce3c120c08e5ec3e7a7a063572a24402ce0ec541bd4adc21f61d60c4e86b711e82e940ebf5f0445ab861f89c146c2a2e7990fb52bed2c65fc199a1981f71
d2ae6be80f6a0156021bf8c9b9d17cd4966ddffc gui: Set progressDialog to nullptr (João Barbosa)
Pull request description:
If a progress notification `> 0` arrives immediately after notification `= 100` then `progressDialog` is a dangling pointer.
Potential fix for #16134.
ACKs for commit d2ae6b:
hebasto:
utACK d2ae6be80f6a0156021bf8c9b9d17cd4966ddffc
fanquake:
tACK d2ae6be80f
Tree-SHA512: 300ddde2f27c494b19a5bd4085400d0f5a1d4980fe8cc3c07bfebb037efc35f777215ff1a095eeb16658407e11f04456137393e88a12fdd767b7aac5f12eab5e
fadbc5d89562df7e34379f9d01a757e30db7bbe2 mempool: remove unused magic number from consistency check (Gregory Sanders)
Pull request description:
Unexplained magic numbers are no good. Since the exact number does not matter, opt for a constant that is less peculiar.
Note that this could only possibly affect mempool consistency checks which is not active by default except on regtest.
see discussion: https://github.com/bitcoin/bitcoin/issues/15080
ACKs for commit fadbc5:
practicalswift:
utACK fadbc5d89562df7e34379f9d01a757e30db7bbe2
Tree-SHA512: 80f95ebc284c5bcc5d825fab0e9f962457a411539946d68ef4c8bdea4b1f2f7f0ead88928fac0eaaa02a1175f01f5ef381613ce53b0f27c3098e90d76ecfe9af
d595b4aae gui: move coin control OK to the right (fanquake)
Pull request description:
Fixes#16101
The simplest fix seems to be to just drop the `sizePolicy` property, as we don't use that on any other instances of `QDialogButtonBox`.
master (76e2cded477bc483ec610212bdadf21fe35292d4):
![master](https://user-images.githubusercontent.com/863730/58490351-fc26d380-813a-11e9-9906-043ff4f4959f.png)
This PR:
![right-side](https://user-images.githubusercontent.com/863730/58490360-00eb8780-813b-11e9-80fb-2dab04a5ba54.png)
ACKs for commit d595b4:
hebasto:
utACK d595b4aae9d6eca7094ed5612f4773d98e422057
jonasschnelli:
utACK d595b4aae9d6eca7094ed5612f4773d98e422057
JosuGZ:
tACK d595b4aae9d6eca7094ed5612f4773d98e422057
Tree-SHA512: 7099e21d58457bfcbc83237f5a47ddf18cfa6bd9d6194b357b314b4d54aed72fdbbf10cbe38223affd87c2542b8f364d37ce6a175e594dfbcd18c725b42a6d3e
2c448d6bc7 parameterize hard coded numbers referring to miner conf window (Jordan Baczuk)
Pull request description:
Replace hard coded values (eg. 2016) with `mainnetParams.nMinerConfirmationWindow` where appropriate. This parameterizes hard coded values in the unit test that refer to the `Miner Confirmation Window`, which currently is `2016`. This includes values not exactly 2016 but which were derived from it. Also changed `int` to `uint32_t` where appropriate to avoid compiler warnings. This makes one source of truth, and also helps people who might be adjusting this value in testing so the unit tests don't break.
ACKs for commit 2c448d:
Tree-SHA512: 9262e0b89c1baf7857b49fe2221b2b00f948f61317b321c4871a9182a86d6f8aadeb59d6b133e8a213cc9b31b4a417888fb1ad31caef16ccbbab1de33c4b8459
0b09a57ae Give WalletModel::UnlockContext move semantics (Pieter Wuille)
Pull request description:
WalletModel::UnlockContext seems to implement "move upon copy" semantics; with C++11 this can be done more safely using move semantics (making attempts to actually copy fail instead).
Not a big deal if this isn't worth review time.
ACKs for commit 0b09a5:
Empact:
utACK 0b09a57aec
jonasschnelli:
utACK 0b09a57aec4c56712711585a4314d73d4d9b6877
jb55:
utACK 0b09a57aec4c56712711585a4314d73d4d9b6877
Tree-SHA512: f827856586afd03666c2d9f50320776afb3dd511ac1bcd293b330f015acd1588551b163dccc97b1351301e3295f4c74d90e5754bcee89faeadf6437d7db165c8
feed98e189 Ensure repos are up-to-date (Hennadii Stepanov)
Pull request description:
These steps are provided by the [release process](https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md#setup-and-perform-gitian-builds).
ACKs for commit feed98:
Tree-SHA512: ad6876d211e524cf6b8dbe4f0f026b77792c8ae3b728e1419f17d5679766603d21c057a7866c183794c814b914a9e4584e16fc501bec77af7e3472a34bd4d913
3ccfa34b32 convert C-style (void) parameter lists to C++ style () (Arvid Norberg)
Pull request description:
In C, an empty parameter list, `()`, means the function takes any arguments, and `(void)` means the function does not take any parameters.
In C++, an empty parameter list means the function does not take any parameters.
So, C++ still supports `(void)` parameter lists with the same semantics, why change to `()`?
1. removing the redundant `void` improves signal-to-noise ratio of the code
2. using `(void)` exposes a rare inconsistency in that a template taking a template `(T)` parameter list, cannot be instantiated with `T=void`
Tree-SHA512: be2897b6c5e474873aa878ed6bac098382cd21866aec33752fe40b089a6331aa6263cae749aba1b4a41e8467f1a47086d32eb74abaf09927fd5a2f44a4b2109a
# Conflicts:
# src/qt/rpcconsole.cpp
be54f42e5f309ff332d74828ae294636d77fb8ea use integer division instead of double conversion and multiplication for computing amounts (Arvid Norberg)
Pull request description:
use integer division instead of double conversion and multiplication for computing amounts. This will most likely generate identical code.
My main argument in favour of this change is one of purity, that we should not rely on implicit conversion from `CAmount` -> `double` and back again. Today this implicit conversion can happen because `CAmount` is just a typedef to `int64_t`. However, I envision a future where `CAmount` is a proper type that does not allow suspicious implicit conversions like these.
Tree-SHA512: a70966623ac6e82410ac94d26cf44e2b7b7a4dbaa514d68ae1f0369aaee1bc2851d05a5e365291b005fe0941428e6139dc62bcfdd0b2f66720706fefe0eb92f1
# Conflicts:
# src/validation.h
8e1c13e6da2a5e1054503539664c139f1eb91e90 doc: Document -checklevel levels (Wladimir J. van der Laan)
Pull request description:
Document the various possible check levels for the command-line argument. The numbers say nothing on their own.
Tree-SHA512: 8a526c53222b55304dde1d9350dd15a50f1dd62bf452a32dc886a4521e3ab49d5f0a86a4c5cbb0d52fb76b60222101045100f93fee5e1a5d5e3ab8e79b64cbe0
# Conflicts:
# src/init.cpp
9dcb6763fb [qa] Use correct python index slices in example test (Suhas Daftuar)
Pull request description:
There's an off-by-one in the list indices used in example_test.py.
Tree-SHA512: d75b77c1e0b3931d02dfa043da4cb6fe8e62864a73717ce5c184d9dbeb25579342c6365cc7bbcc7c4382d76a320a528bf3c69107854dfc6fa704133d0ba11012
# Conflicts:
# test/functional/example_test.py
d0b1cee1fe95eba7b968bed2c33ab681d169c91f doc: `-help-debug` implies `-help` (Wladimir J. van der Laan)
Pull request description:
I don't understand why `-help-debug` would be useful without requesting the help, and I've made this particular mistake one time too many.
Tree-SHA512: 370eab368d672fc09e66fcc440db3cb7e4c70c2988aab506cdc3f3e234c27c8f0fc7512c9cf86606ac43f5c6023b3618b7b0302b4b6e289b388559ba8010f27a
# Conflicts:
# src/init.cpp
Change ctpl implementation to use STL queue & mutex.
Use ctpl synchronized queue instead of boost lockfree queue in bls worker aggregator.
Use smart pointers for memory management of Aggregator and VectorAggregator. With 'delete this;' the objects are prone to data race on the delete operator.
Use smart pointers for memory management of ContributionVerifier.
Pass shared_ptr by value to other threads via worker pool.
e7a72455fa4d5c5b1a37ceae1ec557354b3009c2 Scripts and tools: increased timeout downloading (Emanuele Cisbani)
Pull request description:
DOWNLOAD_CONNECT_TIMEOUT changed from 10 to 30 because some file start only after 15 sec (see below).
```
Fetching boost_1_64_0.tar.bz2 from https://dl.bintray.com/boostorg/release/1.64.0/source/
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
100 76.7M 100 76.7M 0 0 1863k 0 0:00:42 0:00:42 --:--:-- 8136k
/home/gitianuser/bitcoin/depends/work/download/boost-1_64_0/boost_1_64_0.tar.bz2.temp: OK
```
Tree-SHA512: 43250df818eacedeed5fa3cc8453ecedbf564776fa1c6124e872f46d123423f8bdf174a47389dce7d6cc6b96791953b1bb2f96ce3df6c156415f0c3de2d5cc76
# Conflicts:
# depends/Makefile
a679109be40491222c458fdbef58f68509dae0bd Speed up knapsack_solver_test by not recreating wallet 100 times. (lucash.dev@gmail.com)
Pull request description:
Optimization of `knapsack_solver_test`by moving an expensive wallet creation to outside a 100x for loop.
On my (slow) machine:
```
before: 9.8s
after: 6.2s
--------------------
saved: 3.6s (36%)
```
This PR was split from #13050. Also see #10026.
Tree-SHA512: bde1a856b5f076a5845e14d1a924855c8c91742c3139b47903081289b21d01fef6f2d1fd8947058728a57de56f877bab3866af8cd1d25ba2daa44411752cdb2f
fa7e9694e1ed5406036620d4bf0b72a2aa984578 qt: Also log and print messages or questions like bitcoind (MarcoFalke)
dd031e383975ae42b4cddd9a5bf6080ef5b46afa noui: Move handlers to header file (MarcoFalke)
Pull request description:
Testing and debugging after shutdown are harder if the node was run through the gui, because errors and warnings would not be logged to the debug.log or written to the stderr (as is the case for bitcoind).
Tree-SHA512: 1154e2bf02e3c2616c8d28609569d6c3c7344c5877ad5c1303245044cc7aced9eaec9627f1e1258ed087b49c2a2e6f99bc6c1ad0abe0a855b61e737bdf2059bc
# Conflicts:
# src/noui.cpp
01971da9bd docs: Add productivity notes for "dummy rebases" (Carl Dong)
Pull request description:
When rebasing, we often want to do a "dummy rebase" whereby we are not rebasing over an updated master. This is because rebases can be confusing enough already, and we don't want to resolve upstream conflicts together with our local rebase conflicts due to fixup commits, commit rearrangements, and such. This productivity section details how to do such "dummy rebase"s.
ACKs for commit 01971d:
Tree-SHA512: 241a451cec01dc9a01a2286bdee1441cac6d28007f5b173345744d2abf436da916c3f2553ff0d1c5b3687055107b37872dda9529288645e4bae7b3cb46923b7e
f3b90f2e05 Run all lint scripts (Julian Fleischer)
Pull request description:
The description reads:
```
# This script runs all contrib/devtools/lint-*.sh files, and fails if any exit
# with a non-zero status code.
```
This runs all scripts and returns with a non-zero exit code if any failed.
ACKs for commit f3b90f:
Tree-SHA512: 4f1f6435855dd5074a38c5887be6f096ec66f4dbe8712bdfd5fed0c510f1b2c083b7318cf3bfbdcc85982429fb7b4309e57ce48cc11736c86376658ec7ffea8f
c01c065b9ded3399a6a480f15543827dd5e8eb4d Do not construct out-of-bound pointers in SHA512/SHA1/RIPEMD160 code (Pieter Wuille)
Pull request description:
This looks like an issue in the current SHA256/512 code, where a pointer outside of the area pointed to may be constructed (this is UB in theory, though in practice every supported platform treats pointers as integers).
I discovered this while investigating #14580. Sadly, it does not fix it.
ACKs for commit c01c06:
practicalswift:
utACK c01c065b9ded3399a6a480f15543827dd5e8eb4d
Tree-SHA512: 47660e00f164f38c36a1ab46e52dd91cd33cfda6a6048d67541c2f8e73c050d4d9d81b5c149bfad281212d52f204f57bebf5b19879dc7a6a5f48aa823fbc2c02
ccc27bdcd2 doc: Clarify -blocksdir usage (Daniel McNally)
Pull request description:
This PR attempts to clarify and correct the `-blocksdir` argument description and default value. `-blocksdir` does not refer to the full path to the actual `blocks` directory, but rather the root/parent directory which contains the `blocks` directory. Accordingly, the default value is `<datadir>` and not `<datadir>/blocks` - this behavior of defaulting to the datadir can also be seen in init.cpp:
```cpp
if (gArgs.IsArgSet("-blocksdir")) {
path = fs::system_complete(gArgs.GetArg("-blocksdir", ""));
if (!fs::is_directory(path)) {
path = "";
return path;
}
} else {
path = GetDataDir(false);
}
```
It also attempts to clarify that only the `.dat` files containing block data are impacted by `-blocksdir`, not the index files.
I believe this would close#12828.
ACKs for commit ccc27b:
hebasto:
utACK ccc27bdcd2d91fe2c023ad004019d5b970f21dbf
Tree-SHA512: 7b65f66b0579fd56e8c8cd4f9f22d6af56181817762a68deccd7fca51820ad82d9a0c48f5f1f012e746c67bcdae7af4555fad867cb620a9ca538d465c9d86c2b
d2eee87928 Lift prevector default vals to the member declaration (Ben Woosley)
Pull request description:
I overlooked this possibility in #14028
ACKs for commit d2eee8:
promag:
utACK d2eee87, change looks good because members are always initialized.
251Labs:
utACK d2eee87 nice one.
ken2812221:
utACK d2eee87928781ab3082d4279aa6f19641a45e801
practicalswift:
utACK d2eee87928781ab3082d4279aa6f19641a45e801
scravy:
utACK d2eee87928781ab3082d4279aa6f19641a45e801
Tree-SHA512: f2726bae1cf892fd680cf8571027bcdc2e42ba567eaa901fb5fb5423b4d11b29e745e0163d82cb513d8c81399cc85933a16ed66d4a30829382d4721ffc41dc97
5d35ae3326 Handle the result of posix_fallocate system call (Luca Venturini)
Pull request description:
The system call `posix_fallocate` is not supported on some filesystems.
- catches the result of posix_allocate and fall back to the default behaviour if the return value is different from 0 (success)
Fixes#15624
ACKs for commit 5d35ae:
MarcoFalke:
utACK 5d35ae3326624da3fe5dcb4047c9a7cec6665cab
sipa:
utACK 5d35ae3326624da3fe5dcb4047c9a7cec6665cab, though the Yoda condition is an uncommon style in this project.
hebasto:
utACK 5d35ae3326624da3fe5dcb4047c9a7cec6665cab
practicalswift:
utACK 5d35ae3326624da3fe5dcb4047c9a7cec6665cab
Tree-SHA512: 7ab3b35fb633926f28a58b2b07ffde8e31bb997c80a716b1b45ee716fe9ff4ddcef0a05810bd4423530e220cfc62f8925517d27a8b92b05a524272063e43f746
201393f932 Align code example with clang-format (Hennadii Stepanov)
Pull request description:
With this PR running [clang-format-diff.py](https://github.com/bitcoin/bitcoin/blob/master/contrib/devtools/clang-format-diff.py) on the code example will not fire a format adjustment.
ACKs for commit 201393:
MarcoFalke:
trivial ACK 201393f93268f6775d1b5d54119a7210628b333d
Tree-SHA512: 825c5e8cfba1bc140c2dfc38b82c5eec268b82b528af4301f25dfacc1f4f0788e268e72e8512f7ce001be665a8b07964a0af832fd9a1c6bd1c27d252f93619bc
6d44c5ebf9 depends: Add commands for each package for each stage (Carl Dong)
80f0e05b70 depends: Preprocessing doesn't care about deps (Carl Dong)
Pull request description:
Adds make targets for each package for each stage, e.g.
```sh
make zeromq_configured
```
ACKs for commit 6d44c5:
MarcoFalke:
ACK 6d44c5ebf97af4b357079fe4bc2130f98e1d0fd2 (Haven't looked at the code changes, but adding this feature makes sense)
ryanofsky:
ACK 6d44c5ebf97af4b357079fe4bc2130f98e1d0fd2
Tree-SHA512: f1ac0aecfd2372aed09ca63603e2634552cb3f6ff9d610f958e2a66952d7d9e870b4c32b7d996886879e6d3016532272e8b1a10c13ed7b31009c6c96f786db9f
1111f0718a test: .style.yapf: Set column_limit=160 (MarcoFalke)
Pull request description:
The current style is pep8, as suggested in https://github.com/bitcoin/bitcoin/blob/master/test/functional/README.md#style-guidelines.
generated with
```
$ yapf --version
yapf 0.24.0
$ yapf --style-help --style=pep8 > .style.yapf
```
However, we don't use the column_limit of 79 right now. Practically it is somewhere between 120-240.
Some stats:
```
column_limit=120: 115 files changed, 2423 insertions(+), 1408 deletions(-)
column_limit=160: 108 files changed, 1563 insertions(+), 1247 deletions(-)
column_limit=200: 104 files changed, 1255 insertions(+), 1178 deletions(-)
ACKs for commit 1111f0:
practicalswift:
utACK 1111f0718acea42954600a4dbd553ac40aae797f agree with @ryanofsky
ryanofsky:
utACK 1111f0718acea42954600a4dbd553ac40aae797f
Tree-SHA512: 1ce0da83b917496f4ea7d1af31b624517a78998a10091b6ba611737f2c819fa3cda1786307f15d20131a00fd95232818e3d1108950dd12b60c4674eaa447839f
f6ee177f7 Remove unused AES-128 code (practicalswift)
Pull request description:
Remove unused AES-128 code.
As far as I can tell this AES-128 code has never been in use in the project (outside of testing/benchmarking).
The AES-256 code is used in `CCrypter::Encrypt`/`CCrypter::Decrypt` (`src/wallet/crypter.cpp`).
Trivia: 0.15% of the project's C++ LOC count (excluding dependencies) is trimmed off:
```
$ LOC_BEFORE=$(git grep -I "" HEAD~1 -- "*.cpp" "*.h" ":(exclude)src/leveldb/" ":(exclude)src/secp256k1/" ":(exclude)src/univalue/" | wc -l)
$ LOC_AFTER=$(git grep -I "" -- "*.cpp" "*.h" ":(exclude)src/leveldb/" ":(exclude)src/secp256k1/" ":(exclude)src/univalue/" | wc -l)
$ bc <<< "scale=4; ${LOC_AFTER}/${LOC_BEFORE}"
.9985
```
:-)
Tree-SHA512: 9588a3cd795a89ef658b8ee7323865f57723cb4ed9560c21de793f82d35e2835059e7d6d0705e99e3d16bf6b2a444b4bf19568d50174ff3776caf8a3168f5c85
5801dd628d docs: Add more tips to productivity.md (gwillen)
Pull request description:
Add advice to productivity.md on:
- Using ccache to optimal effect
- The with-incompatible-bdb configure option
- Building less than the entire set of targets
ACKs for commit 5801dd:
promag:
utACK 5801dd6.
MarcoFalke:
utACK 5801dd6
Tree-SHA512: 2138acd4bf5a27ecaa9a02fb2141903d01ee199ba85ccf6a5ad6a0a4dabf4447d043108cdd86998801b0282e899f70892f9337b0b6dc59c6d1f0fccf61adb4e4
f7696e6183 depends: qt: Don't hardcode pwd path (Carl Dong)
89bee1bdbf depends: tar: Always extract as yourself (Carl Dong)
340ef50772 depends: Defer to Python detected by autoconf (Carl Dong)
Pull request description:
Removes some implicit assumptions that the depends system has about its environment and, as a side-effect, makes it possible to build the depends tree under severely privilege-limited environments such as containers built by Guix.
Tree-SHA512: e8618f9310a0deae864b44f9b60baa29e6225ba16817973ff7830b55798ebd4343aa06da6c1f92682a7afb709d26f80d6ee794a139d4d44c27caf4f0c8fe95fc
19a0c4af0f depends: native_protobuf: avoid system zlib (Carl Dong)
Pull request description:
I don't believe we use any zlib features in protobufs
Tree-SHA512: cd09229f3fac215f58e9ddd4871f190cf2a301e25939aaa1c6ee130d1ba5bbb00d9ebe9ca012a2894bac4c2db923259f34fe43e255ad55ccd2b11ec88afc2a8f
228e80608 Enable TLS in link to chris.beams.io (JeremyRand)
Pull request description:
This PR enables TLS in a documentation link to chris.beams.io, which improves security. This change was originally part of https://github.com/bitcoin/bitcoin/pull/13778 , which was closed for reasons unrelated to this change.
Tree-SHA512: 01f02031b39ebdaa7fc1859befde7e3bfff105892a8b9e1737ff94741599c6c5936eff53871e5e3560931512c9b7a4ea34f48d8555b583d232c90c2ca6d4d776
ff7f31e07d [doc] productivity: more advanced git range-diff (Sjors Provoost)
3a21905a4e [doc] devtools: mention clang-format dependency (Sjors Provoost)
bf12093191 [doc] productivity: fix broken link (Sjors Provoost)
Pull request description:
Fixes a broken link to `devtools/README.md`, points out the `clang-format` dependency and adds a `git range-diff` incantation that works even with rebases and squashes.
Tree-SHA512: 36e46282f1e28d1bf3f48ada995fbac548f61b7747091eb032b60919cf76c7bdad0fa8aecb0c47adbdaa9ef986d3ec7752b0bb94c63191401856e2ddeec48f3e
fa55104cb8e73c709e90fc5f81c9cb6a8a0713a6 build: use full version string in setup.exe (MarcoFalke)
Pull request description:
Fixes: #15546
Tree-SHA512: a8ccbfef6b9fdd10bd0facadb25019b9296579eee6c8f7b4e5298cc4df52bba61864135ab8f46b900f7a3888fbcc921e039412d5a8127e44d8f2dd2c8fc56f86
32da92bdf6bb55d6d312b0f85797d439cc942db5 gitian: Improve error handling (Wladimir J. van der Laan)
Pull request description:
Improve error handling in gitian builds:
- Set fail-on-error and pipefail flag, this causes a command to fail when either of the pipe stages fails, not only when the last of the stages fails, so this improves error detection.
- Also use `xargs` instead of `find -exec`, because `find` will not propagate errors in the executed command, but `xargs` will.
This will avoid some issues like #15541 where non-determinism is silently introduced due to errors caused by environment conditions (such as lack of disk space in that case).
Tree-SHA512: d5d3f22ce2d04a75e5c25e935744327c3adc704c2d303133f2918113573a564dff3d3243d5569a2b93ee7eb0e97f8e1b1ba81767e966af9015ea711a14091035
fa45123f66 test: Add .style.yapf (MarcoFalke)
Pull request description:
This can *optionally* be used to format any added code before submitting a pull. I use this heavily and wouldn't want to hold it back from others, now that yapf is referred to in https://github.com/bitcoin/bitcoin/blob/master/doc/productivity.md#format-python-diffs-with-yapf-diffpy
Tree-SHA512: 0f3d8bcbb76a710d9faa1226202073e8d967a82a05fc002cd10305ff58b382f5ff3df96a6faaec5bd01613d41f5fc2343e4999fb1217bf1f24f6da186d572ca1
43206239a8 tests: Add script checking for deterministic line coverage (practicalswift)
Pull request description:
Add script checking for deterministic line coverage in unit tests.
Context: #14343 ("coverage reports non-deterministic")
When the coverage is deterministic this script can be invoked from Travis to guard against regressions, but left inactive for now.
Output in case of determinism:
```
$ contrib/test_deterministic_coverage.sh 2
[2019-01-30 20:08:46] Measuring coverage, run #1 of 2
[2019-01-30 20:10:45] Measuring coverage, run #2 of 2
Coverage test passed: Deterministic coverage across 2 runs.
```
Output in case of non-determinism:
```
$ contrib/test_deterministic_coverage.sh 2
[2019-01-30 20:08:46] Measuring coverage, run #1 of 2
[2019-01-30 20:10:45] Measuring coverage, run #2 of 2
The line coverage is non-deterministic between runs.
The test suite must be deterministic in the sense that the set of lines executed at least
once must be identical between runs. This is a neccessary condition for meaningful coverage
measuring.
--- gcovr.run-1.txt 2019-01-30 23:14:07.419418694 +0100
+++ gcovr.run-2.txt 2019-01-30 23:15:57.998811282 +0100
@@ -471,7 +471,7 @@
test/crypto_tests.cpp 270 270 100%
test/cuckoocache_tests.cpp 142 142 100%
test/dbwrapper_tests.cpp 148 148 100%
-test/denialofservice_tests.cpp 225 225 100%
+test/denialofservice_tests.cpp 225 224 99% 363
test/descriptor_tests.cpp 116 116 100%
test/fs_tests.cpp 24 3 12% 14,16-17,19-20,23,25-26,29,31-32,35-36,39,41-42,45-46,49,51-52
test/getarg_tests.cpp 111 111 100%
@@ -585,5 +585,5 @@
zmq/zmqpublishnotifier.h 5 0 0% 12,31,37,43,49
zmq/zmqrpc.cpp 21 0 0% 16,18,20,22,33-35,38-45,49,52,56,60,62-63
------------------------------------------------------------------------------
-TOTAL 61561 27606 44%
+TOTAL 61561 27605 44%
------------------------------------------------------------------------------
```
In this case line 363 of `test/denialofservice_tests.cpp` was executed only in the second run. Non-determinism detected!
Tree-SHA512: 03f45590e70a87146f89aa7838beeff0925d7fd303697ff03e0e69f8a5861694be5f0dd10cb0020e3e3d40c9cf662f71dfcd838f6affb31bd5212314e0a4e3a9