style: adding pre-commit check-style.sh

.pre-commit-config.yaml

@@ -24,5 +24,14 @@ repos:
   rev: 3.8.2
   hooks:
   - id: flake8
-    additional_dependencies: [flake8-bugbear]
+    additional_dependencies: [flake8-bugbear, pep8-naming]
     exclude: ^(docs/.*|tools/.*)$
+
+- repo: local
+  hooks:
+  - id: check-style
+    name: Classic check-style
+    language: system
+    types:
+    - c++
+    entry: ./tools/check-style.sh

.travis.yml

@@ -9,7 +9,7 @@ matrix:
   #   also tests the automatic discovery functions in CMake (Python version, C++ standard).
   - os: linux
     dist: xenial # Necessary to run doxygen 1.8.15
-    name: Style, docs, and pip
+    name: Docs and pip
     cache: false
     before_install:
     - pyenv global $(pyenv whence 2to3)  # activate all python versions
@@ -18,12 +18,10 @@ matrix:
     install:
     # breathe 4.14 doesn't work with bit fields. See https://github.com/michaeljones/breathe/issues/462
     # Latest breathe + Sphinx causes warnings and errors out
-    - $PY_CMD -m pip install --user --upgrade "sphinx<3" sphinx_rtd_theme breathe==4.13.1 flake8 pep8-naming pytest
+    - $PY_CMD -m pip install --user --upgrade "sphinx<3" sphinx_rtd_theme breathe==4.13.1 pytest
     - curl -fsSL https://sourceforge.net/projects/doxygen/files/rel-1.8.15/doxygen-1.8.15.linux.bin.tar.gz/download | tar xz
     - export PATH="$PWD/doxygen-1.8.15/bin:$PATH"
     script:
-    - tools/check-style.sh
-    - flake8
     - $PY_CMD -m sphinx -W -b html docs docs/.build
     - |
       # Make sure setup.py distributes and installs all the headers

CONTRIBUTING.md

@@ -27,11 +27,10 @@ adhere to the following rules to make the process as smooth as possible:
   do add value by themselves.
 * Add tests for any new functionality and run the test suite (``make pytest``)
   to ensure that no existing features break.
-* Please run [``pre-commit``][pre-commit] and ``tools/check-style.sh`` to check
-  your code matches the project style. (Note that ``check-style.sh`` requires
-  ``gawk``.) Use `pre-commit run --all-files` before committing (or use
-  installed-mode, check pre-commit docs) to verify your code passes before
-  pushing to save time.
+* Please run [``pre-commit``][pre-commit] to check your code matches the
+  project style. (Note that ``gawk`` is required.) Use `pre-commit run
+  --all-files` before committing (or use installed-mode, check pre-commit docs)
+  to verify your code passes before pushing to save time.
 * This project has a strong focus on providing general solutions using a
   minimal amount of code, thus small pull requests are greatly preferred.
 

tools/check-style.sh

@@ -4,45 +4,19 @@
 #
 # This script currently checks for
 #
-# 1. use of tabs instead of spaces
-# 2. MSDOS-style CRLF endings
-# 3. trailing spaces
-# 4. missing space between keyword and parenthesis, e.g.: for(, if(, while(
-# 5. Missing space between right parenthesis and brace, e.g. 'for (...){'
-# 6. opening brace on its own line. It should always be on the same line as the
+# 1. missing space between keyword and parenthesis, e.g.: for(, if(, while(
+# 2. Missing space between right parenthesis and brace, e.g. 'for (...){'
+# 3. opening brace on its own line. It should always be on the same line as the
 #    if/while/for/do statement.
 #
-# Invoke as: tools/check-style.sh
+# Invoke as: tools/check-style.sh <filenames>
 #
 
 check_style_errors=0
 IFS=$'\n'
 
-found="$( GREP_COLORS='mt=41' GREP_COLOR='41' grep $'\t' include tests/*.{cpp,py,h} docs/*.rst -rn --color=always )"
-if [ -n "$found" ]; then
-    # The mt=41 sets a red background for matched tabs:
-    echo -e '\033[31;01mError: found tab characters in the following files:\033[0m'
-    check_style_errors=1
-    echo "$found" | sed -e 's/^/    /'
-fi
-
-
-found="$( grep -IUlr $'\r' include tests/*.{cpp,py,h} docs/*.rst --color=always )"
-if [ -n "$found" ]; then
-    echo -e '\033[31;01mError: found CRLF characters in the following files:\033[0m'
-    check_style_errors=1
-    echo "$found" | sed -e 's/^/    /'
-fi
-
-found="$(GREP_COLORS='mt=41' GREP_COLOR='41' grep '[[:blank:]]\+$' include tests/*.{cpp,py,h} docs/*.rst -rn --color=always )"
-if [ -n "$found" ]; then
-    # The mt=41 sets a red background for matched trailing spaces
-    echo -e '\033[31;01mError: found trailing spaces in the following files:\033[0m'
-    check_style_errors=1
-    echo "$found" | sed -e 's/^/    /'
-fi
 
-found="$(grep '\<\(if\|for\|while\|catch\)(\|){' include tests/*.{cpp,h} -rn --color=always)"
+found="$(grep '\<\(if\|for\|while\|catch\)(\|){' $@ -rn --color=always)"
 if [ -n "$found" ]; then
     echo -e '\033[31;01mError: found the following coding style problems:\033[0m'
     check_style_errors=1
@@ -60,7 +34,7 @@ last && /^\s*{/ {
     last=""
 }
 { last = /(if|for|while|catch|switch)\s*\(.*\)\s*$/ ? $0 : "" }
-' $(find include -type f) tests/*.{cpp,h} docs/*.rst)"
+' $(find include -type f) $@)"
 if [ -n "$found" ]; then
     check_style_errors=1
     echo -e '\033[31;01mError: braces should occur on the same line as the if/while/.. statement. Found issues in the following files:\033[0m'