Commit graph

144 commits

Author SHA1 Message Date
MarcoFalke
fac35b21e2
test: lint: Add DisabledOpcodeTemplates to whitelist
Also, bump vulture version to include the whitelist for threading module
2019-09-18 11:38:37 -04:00
MarcoFalke
45be44cce4
Merge #15257: Scripts and tools: Bump flake8 to 3.7.8
3d0a82cff8 devtools: Accomodate block-style copyright blocks (Ben Woosley)
0ef0e51fe4 lint: Bump flake8 to 3.7.8 (Ben Woosley)
838920704a lint: Disable flake8 W504 warning (Ben Woosley)
b21680baf5 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 3d0a82cff8 -- diff looks correct

Tree-SHA512: bea0c144cadd72e4adf2e9a4b4ee0535dd91a8e694206924cf8a389dc9253f364a717edfe9abda88108fbb67fda19b9e823f46822d7303c0aaa72e48909a6105
2019-09-05 02:43:13 +02:00
MarcoFalke
761fe07ba9
Merge #16768: test: Make lint-includes.sh work from any directory
490da639cb Make lint-includes.sh work from any directory (Kristaps Kaupe)

Pull request description:

  Before this change it works from root folder of bitcoin git repo, but if you do `cd test/lint; ./test-includes.sh`, you will have a lot of false positive messages like this:
  ```
  Good job! The circular dependency "chainparamsbase -> util/system -> chainparamsbase" is no longer present.
  Please remove it from EXPECTED_CIRCULAR_DEPENDENCIES in ./lint-circular-dependencies.sh
  to make sure this circular dependency is not accidentally reintroduced.

  Good job! The circular dependency "index/txindex -> validation -> index/txindex" is no longer present.
  Please remove it from EXPECTED_CIRCULAR_DEPENDENCIES in ./lint-circular-dependencies.sh
  to make sure this circular dependency is not accidentally reintroduced.

  ```

Top commit has no ACKs.

Tree-SHA512: 07fa69cb2883181dcee922191acac4b242722eeb2916cdffdc7163421302b22f3c9525aaf4c754a9dba1c307032c05285e38191d5c6aabc894321f8a27bbceaa
2019-09-05 02:00:44 +02:00
Kristaps Kaupe
490da639cb
Make lint-includes.sh work from any directory 2019-09-04 22:36:09 +03:00
Ben Woosley
838920704a
lint: Disable flake8 W504 warning
In the words of MarcoFalke:
"W504 should be disabled. This is not a critical error that should be blocking a merge"
https://github.com/bitcoin/bitcoin/pull/15257#discussion_r302017280
2019-09-03 14:40:56 -04:00
Ben Woosley
b21680baf5
test/contrib: Fix invalid escapes in regex strings
Flagged by flake8 v3.6.0, as W605, plus a few others identified
incidentally, e.g. 59ffecf66cf4d08c4b431e457b083878d66a3fd6.

Note that r"\n" matches to "\n" under re.match/search.
2019-09-03 14:38:38 -04:00
Kristaps Kaupe
8340763dc3
Check for codespell in lint-spelling.sh
Similar check for spellcheck already exists in lint-shell.sh
2019-08-31 00:00:11 +03:00
practicalswift
e4f4ea47eb lint: Catch use of [] or {} as default parameter values in Python functions 2019-08-26 10:53:10 +00:00
MarcoFalke
b80cdfec9a
Merge #16618: [Fix] Allow connection of a noban banned peer
d117f4541d Add test for setban (nicolas.dorier)
dc7529abf0 [Fix] Allow connection of a noban banned peer (nicolas.dorier)

Pull request description:

  Reported by @MarcoFalke on https://github.com/bitcoin/bitcoin/pull/16248#discussion_r314026195

  The bug would mean that if the peer connecting to you is banned, but whitelisted without specific permissions, it would not be able to connect to the node.

  The solution is just to move the same line below.

ACKs for top commit:
  Sjors:
    Agree inline is more clear. utACK d117f45
  MarcoFalke:
    ACK d117f4541d

Tree-SHA512: 0fed39acb1e8db67bb0bf4c4de3ad034ae776f38d55bd661f1ae0e1a4c6becaf1824ab46ed8279f2f31df3f4b29ff56461d8b167d3e9cece62cfe58b5a912811
2019-08-16 10:17:25 -04:00
nicolas.dorier
d117f4541d
Add test for setban 2019-08-16 13:40:31 +09:00
MarcoFalke
fa3c6575ca
lint: Add false positive to python dead code linter 2019-08-15 08:05:14 -04:00
Hennadii Stepanov
753f7cccce
scripted-diff: Make translation bilingual
-BEGIN VERIFY SCRIPT-
sed -i 's/inline std::string _(const char\* psz)/inline bilingual_str _(const char\* psz)/' src/util/translation.h
sed -i 's/return G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz;/return bilingual_str{psz, G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz};/' src/util/translation.h
sed -i 's/\b_("\([^"]\|\\"\)*")/&.translated/g' $(git grep --files-with-matches '\b_("' src)
echo Hard cases - multiline strings.
sed -i 's/"Visit %s for further information about the software.")/&.translated/g' src/init.cpp
sed -i "s/\"Only rebuild the block database if you are sure that your computer's date and time are correct\")/&.translated/g" src/init.cpp
sed -i 's/" restore from a backup.")/&.translated/g' src/wallet/db.cpp
sed -i 's/" or address book entries might be missing or incorrect.")/&.translated/g' src/wallet/wallet.cpp
echo Special case.
sed -i 's/_(COPYRIGHT_HOLDERS)/&.translated/' src/util/system.cpp test/lint/lint-format-strings.py
-END VERIFY SCRIPT-
2019-07-24 16:33:20 +03:00
Wladimir J. van der Laan
345f42a9e3
Merge #14505: test: Add linter to make sure single parameter constructors are marked explicit
c4606b8432 Add Travis check for single parameter constructors not marked "explicit" (practicalswift)

Pull request description:

  Make single parameter constructors `explicit` (C++11).

  Rationale from the developer notes:

  > - By default, declare single-argument constructors `explicit`.
  >   - *Rationale*: This is a precaution to avoid unintended conversions that might
  >   arise when single-argument constructors are used as implicit conversion
  >   functions.

ACKs for top commit:
  laanwj:
    ACK c4606b8432

Tree-SHA512: 3e6fd51935fd93b2604b2188664692973d0897469f814cd745b5147d71b99ea5d73c1081cfde9f6393f51f56969e412fcda35d2d54e938a3235b8d40945f31fd
2019-07-08 20:29:00 +02:00
MarcoFalke
4882040182
Merge #16291: gui: Stop translating PACKAGE_NAME
fa64b947bb util: No translation of `Bitcoin Core` in the copyright (MarcoFalke)
fab85208f6 qt: Run «make translate» in ./src/ (MarcoFalke)
fabe87d2c9 scripted-diff: Avoid passing PACKAGE_NAME for translation (MarcoFalke)
fa5e9f157e build: Stop translating PACKAGE_NAME (MarcoFalke)

Pull request description:

  Generally the package name is not translated, but the package description is.

  E.g. `GIMP` or `Firefox` are always called that way regardless of the system language. However, "`Firefox` webbrowser" or "`GIMP` image manipulation program" are translated.

ACKs for top commit:
  hebasto:
    ACK fa64b947bb, I have not tested the code, but I have reviewed it and it looks OK, I agree it can be merged.

Tree-SHA512: 626f811531182d0ba0ef1044930d32726773349bcb49b10261288a86ee6b80a183db30a87d817d5b0d501fad058ac22d6272311716b4f5a154f17c6f391a5a1a
2019-07-08 13:39:59 -04:00
Hennadii Stepanov
1ac454a384
Enable ShellCheck rules
Enabled ShellCheck rules:
  SC1087
  SC2001
  SC2004
  SC2005
  SC2006
  SC2016
  SC2028
  SC2048
  SC2066 (note that IFS already contains only a line feed)
  SC2116
  SC2166
  SC2181
  SC2206
  SC2207
  SC2230
  SC2236
2019-07-04 19:35:25 +03:00
MarcoFalke
fa64b947bb
util: No translation of Bitcoin Core in the copyright 2019-06-27 15:06:46 -04:00
practicalswift
c4606b8432 Add Travis check for single parameter constructors not marked "explicit" 2019-06-26 16:57:14 +02:00
Andrew Chow
e61de6306f Change ismine to take a CWallet instead of CKeyStore 2019-06-19 18:06:30 -04:00
MarcoFalke
1a274bce4b
Merge #16205: Refactor: Replace fprintf with tfm::format
fa8f195195 Replace remaining fprintf with tfm::format manually (MarcoFalke)
fac03ec43a scripted-diff: Replace fprintf with tfm::format (MarcoFalke)
fa72a64b90 tinyformat: Add doc to Bitcoin Core specific strprintf (MarcoFalke)

Pull request description:

  This should be a refactor except in the cases where we use the wrong format specifier [1], in which case this patch is a bug fix.

  [1] : e.g.  depends: Add libevent compatibility patch for windows #8730

ACKs for commit fa8f19:
  promag:
    ACK fa8f195195. Ideally this should be rebased before merge.
  practicalswift:
    utACK fa8f195195
  Empact:
    ACK fa8f195195
  laanwj:
    code review and lightly tested ACK fa8f195195
  jonatack:
    ACK fa8f195195 from light code review, building, and running linter/unit tests/extended functional tests.

Tree-SHA512: 65f648b0bc383e3266a5bdb4ad8c8a1908a719635d49e1cd321b91254be24dbc7e22290370178e29b98ddcb3fec0889de9cbae273c7140abc9793d849534a743
2019-06-17 06:06:41 -04:00
MarcoFalke
fa8f195195
Replace remaining fprintf with tfm::format manually 2019-06-13 11:46:38 -04:00
Ben Woosley
b748bf6f50
Fix spelling errors identified by codespell 1.15.0
After this commit, the only remaining output is:

  $ test/lint/lint-spelling.sh
  src/test/base32_tests.cpp:14: fo  ==> of, for
  src/test/base64_tests.cpp:14: fo  ==> of, for
  ^ Warning: codespell identified likely spelling errors. Any false positives? Add them to the list of ignored words in test/lint/lint-spelling.ignore-words.txt

Note:
* I ignore several valid alternative spellings
* homogenous is present in tinyformat, hence should be addressed upstream
* process' is correct only if there are plural processes
2019-06-11 17:18:16 +02:00
MarcoFalke
d0f81a96d9
Merge #16129: refactor: Remove unused includes
67f4e9c522 Include core_io.h from core_read.cpp (practicalswift)
eca9767673 Make reasoning about dependencies easier by not including unused dependencies (practicalswift)

Pull request description:

  Make reasoning about dependencies easier by not including unused dependencies.

  Please note that the removed headers are _not_ "transitively included" by other still included headers. Thus the removals are real.

  As an added bonus this change means less work for the preprocessor/compiler. At least 51 393 lines of code no longer needs to be processed:

  ```
  $ git diff -u HEAD~1 | grep -E '^\-#include ' | cut -f2 -d"<" | cut -f1 -d">" | \
        sed 's%^%src/%g' | xargs cat | wc -l
  51393
  ```

  Note that 51 393 is the lower bound: the real number is likely much higher when taking into account transitively included headers :-)

ACKs for commit 67f4e9:

Tree-SHA512: 0c8868aac59813f099ce53d5307eed7962dd6f2ff3546768ef9e5c4508b87f8210f1a22c7e826c3c06bebbf28bdbfcf1628ed354c2d0fdb9a31a42cefb8fdf13
2019-06-06 16:41:40 +02:00
practicalswift
eca9767673 Make reasoning about dependencies easier by not including unused dependencies 2019-06-02 17:15:23 +02:00
practicalswift
3c5254a820 Limit Python linting to files in the repo 2019-05-30 22:36:54 +02:00
Julian Fleischer
f3b90f2e05
Run all lint scripts
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.
2019-05-16 16:42:59 +02:00
MarcoFalke
fac174e2d1
lint: Check that all wallet args are hidden 2019-04-28 12:43:50 -04:00
251
fa1c8e2978 Resolve the qt/guiutil <-> qt/optionsmodal CD
This pull request attempts to resolve the `qt/guiutil` <-> `qt/optionsmodel`
circular dependency.

The circular dependency is resolved by moving the `Intro::getDefaultDataDirectory`
member function to `GUIUtil::getDefaultDataDirectory`.
2019-04-23 13:26:06 +02:00
MarcoFalke
08bd21a3bd
Merge #15826: Pure python EC
b67978529a Add comments to Python ECDSA implementation (John Newbery)
8c7b9324ca Pure python EC (Pieter Wuille)

Pull request description:

  This removes the dependency on OpenSSL for the interaction tests, by providing a pure-Python
  toy implementation of secp256k1.

ACKs for commit b67978:
  jnewbery:
    utACK b67978529a

Tree-SHA512: 181445eb08b316c46937b80dc10aa50d103ab1fdddaf834896c0ea22204889f7b13fd33cbcbd00ddba15f7e4686fe0d9f8e8bb4c0ad0e9587490c90be83966dc
2019-04-22 08:10:05 -04:00
MarcoFalke
ae2c19f578
Merge #15655: Resolve the checkpoints <-> validation circular dependency
418d3230f8 Resolve the checkpoints <-> validation CD. (251)

Pull request description:

  This pull request attempts to resolve the `checkpoints -> validation -> checkpoints` circular dependency.

  The circular dependency is resolved by moving the `CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` function to `validation.cpp` where it used exclusively by the private function `ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& params, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)`.

ACKs for commit 418d32:
  promag:
    utACK 418d323, only `GetLastCheckpoint` usage is in `validation.cpp` and so makes sense to move it there.
  practicalswift:
    utACK 418d3230f8
  MarcoFalke:
    utACK 418d3230f8
  sipa:
    utACK 418d3230f8

Tree-SHA512: 03c3556bc192e65f5e3fa76fd545d4ee7d63d3fb06b132f7a1fa6131aa21ddd2e5b2d19e2222dfe524f422daaca30efde219bed188db8c74ff4b088876b5bc16
2019-04-19 09:34:01 -04:00
Pieter Wuille
8c7b9324ca Pure python EC
This removes the dependency on OpenSSL for the interaction tests, by providing a pure-Python
toy implementation of secp256k1.
2019-04-18 11:58:32 -07:00
John Newbery
91a25d1e71 [build] Add several util units
Adds the following util units and adds them to libbitcoin_util:

- `util/url.cpp` takes `urlDecode` from `httpserver.cpp`
- `util/error.cpp` takes `TransactionErrorString` from
  `node/transaction.cpp` and `AmountHighWarn` and `AmountErrMsg` from
  `ui_interface.cpp`
- `util/fees.cpp` takes `StringForFeeReason` and `FeeModeFromString` from `policy/fees.cpp`
- `util/rbf.cpp` takes `SignalsOptInRBF` from `policy/rbf.cpp`
- 'util/validation.cpp` takes `FormatStateMessage` and `strMessageMagic` from 'validation.cpp`
2019-04-09 17:53:08 -04:00
John Newbery
4a75c9d651 [build] Move policy settings to new src/policy/settings unit
This moves the following policy settings functions and globals to a new
src/policy/settings unit in lib_server:

- `incrementalRelayFee`
- `dustRelayFee`
- `nBytesPerSigOp`
- `fIsBareMultisigStd`

These settings are only required by the node and should not be accessed
by other libraries.
2019-04-09 17:53:08 -04:00
251
418d3230f8 Resolve the checkpoints <-> validation CD.
This commit resolves the checkpoints -> validation -> checkpoints
cirular dependency by moving
`CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` from
`checkpoints.cpp` to `validation.cpp`.
2019-03-23 17:43:54 +01:00
MarcoFalke
4952a95358
Merge #15534: [test] lint-format-strings: open files sequentially (fix for OS X)
21be609b49 In lint-format-strings, open files sequentially (Glenn Willen)

Pull request description:

  In lint-format-strings, we use python argparse to read our file arguments. In
  this mode, argparse opens all the files simultaneously. On OS X, where the
  default filehandle limit is 128, this causes the lint to fail. Instead, ask
  argparse for our filename arguments as strings, and open them one at a time
  using 'with open'.

Tree-SHA512: 4c7dabf98818a7c5d83ab10c61b89a26957fe399e39e933e30c561cb45c5e8ba6f6aedcde8343da0c32ee340289a8897db6a33708e35ee381334ee27e3f4d356
2019-03-05 09:40:23 -05:00
Glenn Willen
21be609b49 In lint-format-strings, open files sequentially
In lint-format-strings, we use python argparse to read our file arguments. In
this mode, argparse opens all the files simultaneously. On OS X, where the
default filehandle limit is 128, this causes the lint to fail. Instead, ask
argparse for our filename arguments as strings, and open them one at a time
using 'with open'.
2019-03-04 17:10:11 -08:00
MarcoFalke
faa7cdf764
scripted-diff: Update copyright in ./test
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./test/
-END VERIFY SCRIPT-
2019-03-02 10:58:35 -05:00
MarcoFalke
fa0e65b772
scripted-diff: test: Remove brackets after assert
-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended -e 's/assert ?\((.+)\)(( )*)?(#.*)?$/assert \1\3\3\4/g' $(git grep -l --extended-regexp 'assert ?\(' test)
-END VERIFY SCRIPT-
2019-03-02 10:51:35 -05:00
MarcoFalke
fab5a1e0f4
build: Require python 3.5 2019-03-02 10:40:23 -05:00
MarcoFalke
fa6bf21f5e
scripted-diff: test: Use py3.5 bytes::hex() method
-BEGIN VERIFY SCRIPT-
sed -i -e "s/def bytes_to_hex_str/def b_2_x/g" $(git grep -l bytes_to_hex_str)

export RE_B_0="[^()]*"                          # match no bracket
export RE_B_1="${RE_B_0}\(${RE_B_0}\)${RE_B_0}" # match exactly one ()
export RE_B_2="${RE_B_0}\(${RE_B_1}\)${RE_B_0}" # match wrapped (())

export RE_M="(b2x|bytes_to_hex_str)\(((${RE_B_0}|${RE_B_1}|${RE_B_2})*)\)"

sed -i --regexp-extended -e "s/${RE_M}/\2.hex()/g"      $(git grep -l -E '(b2x|bytes_to_hex_str)')

sed -i --regexp-extended -e "/  +bytes_to_hex_str( as b2x)?,/d"    $(git grep -l bytes_to_hex_str)
sed -i --regexp-extended -e "s/ +bytes_to_hex_str( as b2x)?,//g"   $(git grep -l bytes_to_hex_str)
sed -i --regexp-extended -e "s/, bytes_to_hex_str( as b2x)?//g"    $(git grep -l bytes_to_hex_str)

export RE_M="(binascii\.)?hexlify\(((${RE_B_0}|${RE_B_1}|${RE_B_2})*)\).decode\(${RE_B_0}\)"

sed -i --regexp-extended -e "s/${RE_M}/\2.hex()/g" $(git grep -l hexlify -- ':(exclude)share')

sed -i --regexp-extended -e  "/from binascii import hexlify$/d" $(git grep -l hexlify -- ':(exclude)share')
sed -i --regexp-extended -e "s/(from binascii import) .*hexlify/\1 unhexlify/g" $(git grep -l hexlify -- ':(exclude)share')

sed -i -e 's/ignore-names "/ignore-names "b_2_x,/g' ./test/lint/lint-python-dead-code.sh
-END VERIFY SCRIPT-
2019-03-02 10:40:12 -05:00
Wladimir J. van der Laan
3e1ca1348c
Merge #15278: Improve PID file error handling
3782075a5f Move all PID file stuff to init.cpp (Hennadii Stepanov)
561e375c73 Make PID file creating errors fatal (Hennadii Stepanov)
745a2ace18 Improve PID file removing errors logging (Hennadii Stepanov)

Pull request description:

  Digging into #15240 the lack of the proper logging has been discovered.
  Fixed by this PR.

  UPDATE (inspired by @laanwj's [comment](https://github.com/bitcoin/bitcoin/pull/15278#discussion_r252641810)):
  Not being able to create the PID file is fatal now.

  Output of `bitcoind`:

  ```
  $ src/bitcoind -pid=/run/bitcoind/bitcoind.pid
  2019-02-01T23:20:10Z Bitcoin Core version v0.17.99.0-561e375c7 (release build)
  2019-02-01T23:20:10Z Assuming ancestors of block 0000000000000037a8cd3e06cd5edbfe9dd1dbcc5dacab279376ef7cfc2b4c75 have valid signatures.
  2019-02-01T23:20:10Z Setting nMinimumChainWork=00000000000000000000000000000000000000000000007dbe94253893cbd463
  2019-02-01T23:20:10Z Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
  2019-02-01T23:20:10Z Using RdRand as an additional entropy source
  2019-02-01T23:20:11Z Error: Unable to create the PID file '/run/bitcoind/bitcoind.pid': No such file or directory
  Error: Unable to create the PID file '/run/bitcoind/bitcoind.pid': No such file or directory
  2019-02-01T23:20:11Z Shutdown: In progress...
  2019-02-01T23:20:11Z Shutdown: Unable to remove PID file: File does not exist
  2019-02-01T23:20:11Z Shutdown: done
  ```

  Output of `bitcoin-qt`:
  ![screenshot from 2019-02-02 01-19-05](https://user-images.githubusercontent.com/32963518/52154886-9349b600-2688-11e9-8128-470f16790305.png)

  **Notes for reviewers**
  1. `CreatePidFile()` has been moved from `util/system.cpp` to `init.cpp` for the following reasons:
  - to get the ability to use `InitError()`
  - now `init.cpp` contains code of both creating PID file and removing it

  2. Regarding 0.18 release process: this PR modifies 1 string and introduces 2 new ones.

Tree-SHA512: ac07d0f800e61ec759e427d0afc0ca43d67f232e977662253963afdd0a220d34b871050f58149fc9fabd427bfc8e0d3f6a6032f2a38f30ad366fc0d074b0f2b3
2019-02-21 09:23:10 +01:00
MarcoFalke
d73918447f
Merge #15216: Scripts and tools: Replace script name with a special parameter
8c9b8a3668 Replace script name with special parameter (Hennadii Stepanov)

Pull request description:

  This PR improves UX; all others shell scripts ~(excluding travis linters)~ in the bitcoin repo have this feature.

  Before:
  ![screenshot from 2019-01-20 17-45-42](https://user-images.githubusercontent.com/32963518/51442159-b5cfec80-1ce2-11e9-8017-3b0b464ccaf8.png)

  After:
  ![screenshot from 2019-01-20 18-30-27](https://user-images.githubusercontent.com/32963518/51442166-bf595480-1ce2-11e9-9520-481518c3b288.png)

  cc: @jamesob @laanwj

Tree-SHA512: 7924e5658a2efe81fd5591390ca5af1ff0558bd9d5693363b9f8addedb1d6b90aa16f11c9b361c6fdfbd931a959255817473a240c175dee95aefc7d2d4a10a36
2019-02-12 16:39:39 -05:00
Hennadii Stepanov
8c9b8a3668
Replace script name with special parameter 2019-02-12 23:25:54 +02:00
MarcoFalke
5029e94f85
Merge #14519: tests: add utility to easily profile node performance with perf
13782b8ba8 docs: add perf section to developer docs (James O'Beirne)
58180b5fd4 tests: add utility to easily profile node performance with perf (James O'Beirne)

Pull request description:

  Adds a context manager to easily (and selectively) profile node performance during functional test execution using `perf`.

  While writing some tests, I encountered some odd bitcoind slowness. I wrote up a utility (`TestNode.profile_with_perf`) that generates performance diagnostics for a node by running `perf` during the execution of a particular region of test code.

  `perf` usage is detailed in the excellent (and sadly unmerged) https://github.com/bitcoin/bitcoin/pull/12649; all due props to @eklitzke.

  ### Example

  ```python
  with node.profile_with_perf("large-msgs"):
      for i in range(200):
          node.p2p.send_message(some_large_msg)
      node.p2p.sync_with_ping()
  ```

  This generates a perf data file in the test node's datadir (`/tmp/testtxmpod0y/node0/node-0-TestName-large-msgs.perf.data`).

  Running `perf report` generates nice output about where the node spent most of its time while running that part of the test:

  ```bash
  $ perf report -i /tmp/testtxmpod0y/node0/node-0-TestName-large-msgs.perf.data --stdio \
    | c++filt \
    | less

  # To display the perf.data header info, please use --header/--header-only options.
  #
  #
  # Total Lost Samples: 0
  #
  # Samples: 135  of event 'cycles:pp'
  # Event count (approx.): 1458205679493582
  #
  # Children      Self  Command          Shared Object        Symbol
  # ........  ........  ...............  ...................  ........................................................................................................................................................................................................................................................................
  #
      70.14%     0.00%  bitcoin-net      bitcoind             [.] CNode::ReceiveMsgBytes(char const*, unsigned int, bool&)
                  |
                  ---CNode::ReceiveMsgBytes(char const*, unsigned int, bool&)

      70.14%     0.00%  bitcoin-net      bitcoind             [.] CNetMessage::readData(char const*, unsigned int)
                  |
                  ---CNetMessage::readData(char const*, unsigned int)
                     CNode::ReceiveMsgBytes(char const*, unsigned int, bool&)

      35.52%     0.00%  bitcoin-net      bitcoind             [.] std::vector<char, zero_after_free_allocator<char> >::_M_fill_insert(__gnu_cxx::__normal_iterator<char*, std::vector<char, zero_after_free_allocator<char> > >, unsigned long, char const&)
                  |
                  ---std::vector<char, zero_after_free_allocator<char> >::_M_fill_insert(__gnu_cxx::__normal_iterator<char*, std::vector<char, zero_after_free_allocator<char> > >, unsigned long, char const&)
                     CNetMessage::readData(char const*, unsigned int)
                     CNode::ReceiveMsgBytes(char const*, unsigned int, bool&)

  ...
  ```

Tree-SHA512: 9ac4ceaa88818d5eca00994e8e3c8ad42ae019550d6583972a0a4f7b0c4f61032e3d0c476b4ae58756bc5eb8f8015a19a7fc26c095bd588f31d49a37ed0c6b3e
2019-02-05 17:40:16 -05:00
Hennadii Stepanov
561e375c73
Make PID file creating errors fatal 2019-02-02 01:07:23 +02:00
Jonas Schnelli
73a6bac9ff
Merge #15196: [test]: Update all subprocess.check_output functions to be Python 3.4 compatible
fdf82ba18 Update all subprocess.check_output functions in CI scripts to be Python 3.4 compatible (Graham Krizek)

Pull request description:

  CI is failing the `lint` stage on every Cron run (regular PR/Push runs still pass). The failure was introduced in 74ce326 and has been broken since. The Python version running in CI was downgraded to 3.4 from 3.6. There were a couple files that were using the `encoding` argument in the `subprocess.check_output` function. This was introduced in Python 3.6 and therefore broke the scripts that were using it. The `universal_newlines` argument was used as well, but in order to use it we must be able to set encoding because of issues on some BSD systems.

  To get CI to pass, I removed all `universal_newline` and `encoding` args to the `check_ouput` function. Then I decoded all `check_output` return values. This should keep the same behavior but be Python 3.4 compatible.

Tree-SHA512: f5e5885e98cf4777be9cc254446a873eedb03bdccbd8e06772a964db95e9fcf46736aa9cdcab1d8f123ea9f4947ed6020679898d8b2f47ffb1d94c21a4b08209
2019-01-23 20:43:53 -10:00
James O'Beirne
58180b5fd4 tests: add utility to easily profile node performance with perf
Introduces `TestNode.profile_with_perf()` context manager which
samples node execution to produce profiling data.

Also introduces a test framework flag, `--perf`, which will run
perf on all nodes for the duration of a given test.
2019-01-22 08:55:55 -05:00
Ben Woosley
948d8f4f10
lint: Enable python linters via an array
This assures consistent recording of the enabled linters.
2019-01-20 17:13:22 -08:00
Graham Krizek
fdf82ba181
Update all subprocess.check_output functions in CI scripts to be Python 3.4 compatible
Removing the 'universal_newlines' and 'encoding' args from the subprocess.check_outputs fuction. 'universal_newlines' is supported in 3.4, but 'encoding' is not. Without specifying 'encoding' it will make a guess at encoding, which can break things on BSD systems. We must handle encoding/decoding ourselves until we can use Python 3.6
2019-01-18 09:36:39 -06:00
practicalswift
a517541794 Remove no longer needed shellcheck suppressions 2019-01-16 15:47:56 +01:00
practicalswift
0b7196ecad Fix warnings introduced in shellcheck v0.6.0 2019-01-16 15:47:56 +01:00