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MarcoFalke 6ef45bc968
Merge #18581: ci: Print ccache stats, add pip cache, and cleanups 
73f8303629 ci: Add pip cache (Hennadii Stepanov)
6d480667b2 ci: Print ccache statistics summary (Hennadii Stepanov)
a6eea715ff ci: Drop unused WINEDEBUG variable (Hennadii Stepanov)

Pull request description:

  The Travis [pip cache](https://docs.travis-ci.com/user/caching/#pip-cache) is free and saves a dozen of seconds :)

  Here are some excerpts from the Travis logs with `ccache` statistics (I found useful):

  2) [Arm64](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507749)
  ```
  ccache version 3.6
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats updated                       Fri Apr 10 18:21:06 2020
  stats zeroed                        Fri Apr 10 18:03:04 2020
  cache hit (direct)                   156
  cache hit (preprocessed)             198
  cache miss                           143
  cache hit rate                     71.23 %
  called for link                        8
  cleanups performed                     9
  files in cache                      1255
  cache size                          80.6 MB
  max cache size                     100.0 MB
  ```
  3) [s390x](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507750)
  ```
  ccache version 3.4.1
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats zero time                     Fri Apr 10 17:15:35 2020
  cache hit (direct)                   115
  cache hit (preprocessed)             163
  cache miss                            94
  cache hit rate                     74.73 %
  called for link                        6
  cleanups performed                     0
  files in cache                       804
  cache size                         304.8 MB
  max cache size                       5.0 GB
  ```
  4) [Win64](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507751)
  ```
  ccache version 3.4.1
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats zero time                     Fri Apr 10 17:38:07 2020
  cache hit (direct)                   147
  cache hit (preprocessed)             199
  cache miss                           138
  cache hit rate                     71.49 %
  called for link                        7
  cleanups performed                     7
  files in cache                      1242
  cache size                          87.0 MB
  max cache size                     100.0 MB
  ```
  5) [CentOS 7](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507752)
  ```
  ccache version 3.7.7
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats updated                       Fri Apr 10 17:45:59 2020
  stats zeroed                        Fri Apr 10 17:34:27 2020
  cache hit (direct)                   152
  cache hit (preprocessed)             200
  cache miss                           144
  cache hit rate                     70.97 %
  called for link                        8
  cleanups performed                     4
  files in cache                      1352
  cache size                          86.1 MB
  max cache size                     100.0 MB
  ```
  6) [bionic](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507753)
  ```
  ccache version 3.4.1
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats zero time                     Fri Apr 10 17:21:10 2020
  cache hit (direct)                   136
  cache hit (preprocessed)              35
  cache miss                           330
  cache hit rate                     34.13 %
  called for link                        8
  cleanups performed                    18
  files in cache                      1302
  cache size                          83.8 MB
  max cache size                     100.0 MB
  ```
  7) [xenial](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507754)
  ```
  ccache version 3.2.4
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  cache hit (direct)                   161
  cache hit (preprocessed)             174
  cache miss                            95
  called for link                        7
  files in cache                      3411
  cache size                           1.1 GB
  max cache size                       5.0 GB
  ```
  10) [focal](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507757)
  ```
  ccache version 3.7.7
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats updated                       Fri Apr 10 17:35:57 2020
  stats zeroed                        Fri Apr 10 17:21:32 2020
  cache hit (direct)                    78
  cache hit (preprocessed)             125
  cache miss                           107
  cache hit rate                     65.48 %
  called for link                      120
  cleanups performed                     0
  files in cache                      6218
  cache size                           1.8 GB
  max cache size                       5.0 GB
  ```
  14) [macOS 10.12](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507761)
  ```
  ccache version 3.4.1
  cache directory                     /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /home/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /etc/ccache.conf
  stats zero time                     Fri Apr 10 17:47:19 2020
  cache hit (direct)                    28
  cache hit (preprocessed)               1
  cache miss                           469
  cache hit rate                      5.82 %
  called for link                        8
  cleanups performed                    17
  files in cache                      1946
  cache size                          82.6 MB
  max cache size                     100.0 MB
  ```
  15) [macOS 10.14 native](https://travis-ci.org/github/bitcoin/bitcoin/jobs/673507762)
  ```
  ccache version 3.7.8
  cache directory                     /Users/travis/build/bitcoin/bitcoin/ci/scratch/.ccache
  primary config                      /Users/travis/build/bitcoin/bitcoin/ci/scratch/.ccache/ccache.conf
  secondary config      (readonly)    /usr/local/Cellar/ccache/3.7.8/etc/ccache.conf
  stats updated                       Fri Apr 10 17:38:44 2020
  stats zeroed                        Fri Apr 10 17:22:36 2020
  cache hit (direct)                   213
  cache hit (preprocessed)             293
  cache miss                           144
  cache hit rate                     77.85 %
  called for link                       11
  called for preprocessing              56
  compile failed                        30
  preprocessor error                    56
  bad compiler arguments                14
  autoconf compile/link                 77
  no input file                         66
  cleanups performed                     0
  files in cache                      1564
  cache size                         284.6 MB
  max cache size                       5.0 GB
  ```

Top commit has no ACKs.

Tree-SHA512: f9f2c6d72680bafc7a982efc04dc37ab9bba77ffd2a4cbbc56bb0e86c5c3501d57aa2f0ebeac0113e9d8daac1ee4eac1eddf74c1172c267b37ee2d9324366c8a
2020-04-13 11:45:11 -04:00
.github Remove GitHub Actions CI workflow. 2020-01-30 18:45:28 +00:00
.tx tx: Bump transifex slug to 020x 2020-03-16 10:52:55 +01:00
build-aux/m4 build: Update ax_boost_mase.m4 to the latest serial 2020-04-08 16:14:31 +03:00
build_msvc Merge #18504: build: Drop bitcoin-tx and bitcoin-wallet dependencies on libevent 2020-04-10 12:52:37 -04:00
ci Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
contrib Merge #17595: guix: Enable building for x86_64-w64-mingw32 target 2020-04-12 18:34:18 +08:00
depends Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
doc Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
share guix: Make x86_64-w64-mingw32 builds reproducible 2020-04-02 17:19:57 -04:00
src Merge #18493: rpc: Remove deprecated "size" from mempool txs 2020-04-13 11:39:44 -04:00
test Merge #18545: test: refactor rpc_signrawtransaction and add logging 2020-04-13 11:19:56 -04:00
.appveyor.yml appveyor: Enable minimal unit test logging to aid debugging 2020-04-08 22:14:44 +08:00
.cirrus.yml cirrus: Bump freebsd to 12.1 2020-04-12 08:50:05 -04:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
.python-version .python-version: Specify full version 3.5.6 2019-03-02 12:06:26 -05:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
.travis.yml Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
CONTRIBUTING.md Merge #18283: doc: Explain rebase policy in CONTRIBUTING.md 2020-03-11 16:01:25 +01:00
COPYING doc: Update license year range to 2020 2019-12-26 23:11:21 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am Merge #18107: build: Add cov_fuzz target 2020-03-27 14:29:48 +01:00
README.md doc: Fix some misspellings 2019-11-04 04:22:53 -05:00
SECURITY.md doc: Remove explicit mention of version from SECURITY.md 2019-06-14 06:39:17 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.