Adding pre-commit

.clang-format

@@ -19,7 +19,7 @@ BasedOnStyle:  LLVM
 # AlwaysBreakTemplateDeclarations: false
 BinPackArguments: false
 BinPackParameters: false
-# BraceWrapping:   
+# BraceWrapping:
 #   AfterClass:      false
 #   AfterControlStatement: false
 #   AfterEnum:       false
@@ -69,7 +69,7 @@ IndentWidth:     4
 # PenaltyReturnTypeOnItsOwnLine: 60
 # PointerAlignment: Right
 # ReflowComments:  true
-SortIncludes:    false
+SortIncludes:    true
 # SpaceAfterCStyleCast: false
 # SpaceAfterTemplateKeyword: true
 # SpaceBeforeAssignmentOperators: true

azure-pipelines.yml

@@ -15,7 +15,24 @@ variables:
 
 jobs:
 
-- job: ClangFormatTidy
+- job: Formatting
+  pool:
+    vmImage: 'ubuntu-16.04'
+  steps:
+    - task: UsePythonVersion@0
+      inputs:
+        versionSpec: '3.7'
+        architecture: 'x64'
+    - script: python -m pip install pre-commit
+      displayName: Install pre-commit
+    - script: pre-commit run --all
+      displayName: Run pre-commit
+    - script: git diff --exit-code
+      displayName: Display format changes
+      condition: always()
+
+
+- job: ClangTidy
   variables:
     CXX_FLAGS: "-Werror -Wcast-align -Wfloat-equal -Wimplicit-atomic-properties -Wmissing-declarations -Woverlength-strings -Wshadow -Wstrict-selector-match -Wundeclared-selector -Wunreachable-code -std=c++11"
     cli11.options: -DCLANG_TIDY_FIX=ON
@@ -26,8 +43,6 @@ jobs:
     vmImage: 'ubuntu-16.04'
   container: silkeh/clang:5
   steps:
-    - script: scripts/check_style.sh
-      displayName: Check format
     - template: .ci/azure-cmake.yml
     - template: .ci/azure-build.yml
     - script: git diff --exit-code --color

book/chapters/config.md

@@ -44,10 +44,10 @@ std::vector<CLI::ConfigItem> from_config(std::istream &input) const;
 
 The `CLI::ConfigItem`s that you return are simple structures with a name, a vector of parents, and a vector of results. A optionally customizable `to_flag` method on the formatter lets you change what happens when a ConfigItem turns into a flag.
 
-Finally, set your new class as new config formatter: 
+Finally, set your new class as new config formatter:
 
 ```cpp
 app.config_formatter(std::make_shared<NewConfig>());
 ```
 
-See [`examples/json.cpp`](https://github.com/CLIUtils/CLI11/blob/master/examples/json.cpp) for a complete JSON config example. 
+See [`examples/json.cpp`](https://github.com/CLIUtils/CLI11/blob/master/examples/json.cpp) for a complete JSON config example.

book/chapters/flags.md

@@ -73,7 +73,7 @@ The values would be used like this:
 
 [include:"usage"](../code/flags.cpp)
 
-[Source code](https://gitlab.com/CLIUtils/CLI11Tutorial/blob/master/code/flags.cpp) 
+[Source code](https://gitlab.com/CLIUtils/CLI11Tutorial/blob/master/code/flags.cpp)
 
 If you compile and run:
 

book/chapters/formatting.md

@@ -51,7 +51,7 @@ This is a normal printout, with `<>` indicating the methods used to produce each
   <make_group(app, "Option Group 2"), false, filter>
   ...
 <make_subcommands(app)>
-  <make_subcommand(sub1, Mode::Normal)> 
+  <make_subcommand(sub1, Mode::Normal)>
   <make_subcommand(sub2, Mode::Normal)>
 <make_footer(app)>
 ```
@@ -61,10 +61,10 @@ This is a normal printout, with `<>` indicating the methods used to produce each
 The `make_groups` print the group name then call `make_option(o)` on the options listed in that group. The normal printout for an option looks like this:
 
 ```
-        make_option_opts(o) 
-            ┌───┴────┐  
- -n,--name  (REQUIRED)      This is a description 
-└────┬────┘                └──────────┬──────────┘ 
+        make_option_opts(o)
+            ┌───┴────┐
+ -n,--name  (REQUIRED)      This is a description
+└────┬────┘                └──────────┬──────────┘
 make_option_name(o,p)        make_option_desc(o)
 ```
 

book/chapters/installation.md

@@ -1,4 +1,4 @@
-# Installation 
+# Installation
 
 ## Single file edition
 
@@ -50,7 +50,7 @@ root:build # cmake ..
 root:build # make
 Scanning dependencies ...
 root:build # make test
-[warning]Running tests... 
+[warning]Running tests...
 Test project /CLI11/build
       Start  1: HelpersTest
  1/10 Test  #1: HelpersTest ......................   Passed    0.01 sec

book/chapters/options.md

@@ -20,7 +20,7 @@ You can use any C++ int-like type, not just `int`. CLI11 understands the followi
 
 | Type        | CLI11 |
 |-------------|-------|
-| int-like    | Integer conversion up to 64-bit, can be unsigned | 
+| int-like    | Integer conversion up to 64-bit, can be unsigned |
 | float-like  | Floating point conversions |
 | string-like | Anything else that can be shifted into a StringStream |
 | vector-like | A vector of the above three types (see below) |
@@ -54,7 +54,7 @@ If you use a vector instead of a plain option, you can accept more than one valu
 |-------------------|-----------------|
 | `--vec 1 --vec 2` | `--vec 1 2`     |
 
-The original version did allow the option system to access information on the grouping of options received, but was removed for simplicity. 
+The original version did allow the option system to access information on the grouping of options received, but was removed for simplicity.
 
 An example of setting up a vector option:
 

book/chapters/toolkits.md

@@ -27,4 +27,4 @@ You can call anything you would like to configure in the constructor, like `opti
 
 # Virtual functions provided
 
-You are given a few virtual functions that you can change (only on the main App). `pre_callback` runs right before the callbacks run, letting you print out custom messages at the top of your app. 
+You are given a few virtual functions that you can change (only on the main App). `pre_callback` runs right before the callbacks run, letting you print out custom messages at the top of your app.

cmake/CodeCoverage.cmake

@@ -170,7 +170,7 @@ function(SETUP_TARGET_FOR_COVERAGE)
         DEPENDS ${Coverage_DEPENDENCIES}
         COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
     )
-    
+
     # Show where to find the lcov info report
     add_custom_command(TARGET ${Coverage_NAME} POST_BUILD
         COMMAND ;

conanfile.py

@@ -2,6 +2,7 @@ from conans import ConanFile, CMake
 from conans.tools import load
 import re
 
+
 def get_version():
     try:
         content = load("include/CLI/Version.hpp")
@@ -10,6 +11,7 @@ def get_version():
     except Exception:
         return None
 
+
 class CLI11Conan(ConanFile):
     name = "CLI11"
     version = get_version()
@@ -21,9 +23,17 @@ class CLI11Conan(ConanFile):
     license = "BSD-3-Clause"
 
     settings = "os", "compiler", "arch", "build_type"
-    exports_sources = "LICENSE", "README.md", "include/*", "extern/*", "cmake/*", "CMakeLists.txt", "tests/*"
+    exports_sources = (
+        "LICENSE",
+        "README.md",
+        "include/*",
+        "extern/*",
+        "cmake/*",
+        "CMakeLists.txt",
+        "tests/*",
+    )
 
-    def build(self): # this is not building a library, just tests
+    def build(self):  # this is not building a library, just tests
         cmake = CMake(self)
         cmake.definitions["CLI11_EXAMPLES"] = "OFF"
         cmake.definitions["CLI11_SINGLE_FILE"] = "OFF"

include/CLI/Validators.hpp

@@ -474,9 +474,10 @@ template <typename T> std::string generate_set(const T &set) {
     using element_t = typename detail::element_type<T>::type;
     using iteration_type_t = typename detail::pair_adaptor<element_t>::value_type; // the type of the object pair
     std::string out(1, '{');
-    out.append(detail::join(detail::smart_deref(set),
-                            [](const iteration_type_t &v) { return detail::pair_adaptor<element_t>::first(v); },
-                            ","));
+    out.append(detail::join(
+        detail::smart_deref(set),
+        [](const iteration_type_t &v) { return detail::pair_adaptor<element_t>::first(v); },
+        ","));
     out.push_back('}');
     return out;
 }
@@ -486,17 +487,18 @@ template <typename T> std::string generate_map(const T &map, bool key_only = fal
     using element_t = typename detail::element_type<T>::type;
     using iteration_type_t = typename detail::pair_adaptor<element_t>::value_type; // the type of the object pair
     std::string out(1, '{');
-    out.append(detail::join(detail::smart_deref(map),
-                            [key_only](const iteration_type_t &v) {
-                                std::string res{detail::to_string(detail::pair_adaptor<element_t>::first(v))};
+    out.append(detail::join(
+        detail::smart_deref(map),
+        [key_only](const iteration_type_t &v) {
+            std::string res{detail::to_string(detail::pair_adaptor<element_t>::first(v))};
 
-                                if(!key_only) {
-                                    res.append("->");
-                                    res += detail::to_string(detail::pair_adaptor<element_t>::second(v));
-                                }
-                                return res;
-                            },
-                            ","));
+            if(!key_only) {
+                res.append("->");
+                res += detail::to_string(detail::pair_adaptor<element_t>::second(v));
+            }
+            return res;
+        },
+        ","));
     out.push_back('}');
     return out;
 }
@@ -657,9 +659,10 @@ class IsMember : public Validator {
     /// You can pass in as many filter functions as you like, they nest (string only currently)
     template <typename T, typename... Args>
     IsMember(T &&set, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args &&... other)
-        : IsMember(std::forward<T>(set),
-                   [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
-                   other...) {}
+        : IsMember(
+              std::forward<T>(set),
+              [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
+              other...) {}
 };
 
 /// definition of the default transformation object
@@ -717,9 +720,10 @@ class Transformer : public Validator {
     /// You can pass in as many filter functions as you like, they nest
     template <typename T, typename... Args>
     Transformer(T &&mapping, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args &&... other)
-        : Transformer(std::forward<T>(mapping),
-                      [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
-                      other...) {}
+        : Transformer(
+              std::forward<T>(mapping),
+              [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
+              other...) {}
 };
 
 /// translate named items to other or a value set
@@ -793,9 +797,10 @@ class CheckedTransformer : public Validator {
     /// You can pass in as many filter functions as you like, they nest
     template <typename T, typename... Args>
     CheckedTransformer(T &&mapping, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args &&... other)
-        : CheckedTransformer(std::forward<T>(mapping),
-                             [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
-                             other...) {}
+        : CheckedTransformer(
+              std::forward<T>(mapping),
+              [filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
+              other...) {}
 };
 
 /// Helper function to allow ignore_case to be passed to IsMember or Transform

scripts/ExtractVersion.py

@@ -3,15 +3,15 @@
 import os
 import re
 
-base_path = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
-config_h  = os.path.join(base_path, 'include', 'CLI', 'Version.hpp')
-data      = {'MAJOR': 0, 'MINOR': 0, 'PATCH': 0}
-reg       = re.compile(r'^\s*#define\s+CLI11_VERSION_([A-Z]+)\s+([0-9]+).*$')
+base_path = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+config_h = os.path.join(base_path, "include", "CLI", "Version.hpp")
+data = {"MAJOR": 0, "MINOR": 0, "PATCH": 0}
+reg = re.compile(r"^\s*#define\s+CLI11_VERSION_([A-Z]+)\s+([0-9]+).*$")
 
-with open(config_h, 'r') as fp:
-  for l in fp:
-    m = reg.match(l)
-    if m:
-      data[m.group(1)] = int(m.group(2))
+with open(config_h, "r") as fp:
+    for l in fp:
+        m = reg.match(l)
+        if m:
+            data[m.group(1)] = int(m.group(2))
 
-print('{}.{}.{}'.format(data['MAJOR'], data['MINOR'], data['PATCH']))
+print("{}.{}.{}".format(data["MAJOR"], data["MINOR"], data["PATCH"]))

scripts/MakeSingleHeader.py

@@ -24,11 +24,13 @@ CLI11:verbatim  # The tag
 [^\n]*          # Up to end of line
 $               # End of a line
 """
-verbatim_all = re.compile(verbatim_tag_str + "(.*)" + verbatim_tag_str,
-                          re.MULTILINE | re.DOTALL | re.VERBOSE)
+verbatim_all = re.compile(
+    verbatim_tag_str + "(.*)" + verbatim_tag_str, re.MULTILINE | re.DOTALL | re.VERBOSE
+)
 
 DIR = os.path.dirname(os.path.abspath(__file__))
 
+
 class HeaderFile(object):
     TAG = "Unknown git revision"
     LICENSE = "// BSD 3 clause"
@@ -43,7 +45,7 @@ class HeaderFile(object):
             self.__class__.VERSION = version.groups()[0]
 
         # add self.verbatim
-        if 'CLI11:verbatim' in inner:
+        if "CLI11:verbatim" in inner:
             self.verbatim = ["\n\n// Verbatim copy from {0}:".format(inc)]
             self.verbatim += verbatim_all.findall(inner)
             inner = verbatim_all.sub("", inner)
@@ -52,7 +54,7 @@ class HeaderFile(object):
 
         self.headers = set(includes_system.findall(inner))
 
-        self.body = '\n// From {0}:\n\n'.format(inc) + inner[inner.find('namespace'):]
+        self.body = "\n// From {0}:\n\n".format(inc) + inner[inner.find("namespace") :]
 
         self.namespace = None
 
@@ -65,11 +67,11 @@ class HeaderFile(object):
 
     @property
     def header_str(self):
-        return '\n'.join('#include <'+h+'>' for h in sorted(self.headers))
+        return "\n".join("#include <" + h + ">" for h in sorted(self.headers))
 
     @property
     def verbatim_str(self):
-        return '\n'.join(self.verbatim)
+        return "\n".join(self.verbatim)
 
     def insert_namespace(self, namespace):
         self.namespace = namespace
@@ -79,7 +81,7 @@ class HeaderFile(object):
         self.body = self.body.replace(before, after)
 
     def __str__(self):
-        result = '''\
+        result = """\
 #pragma once
 
 // CLI11: Version {self.VERSION}
@@ -96,21 +98,27 @@ class HeaderFile(object):
 // Standard combined includes:
 
 {self.header_str}
-'''.format(self=self)
+""".format(
+            self=self
+        )
 
         if self.namespace:
-             result += '\nnamespace ' + self.namespace + ' {\n\n'
-        result += '{self.verbatim_str}\n{self.body}\n'.format(self=self)
+            result += "\nnamespace " + self.namespace + " {\n\n"
+        result += "{self.verbatim_str}\n{self.body}\n".format(self=self)
         if self.namespace:
-            result += '} // namespace ' + self.namespace + '\n\n'
+            result += "} // namespace " + self.namespace + "\n\n"
 
         return result
 
 
-def MakeHeader(output, main_header, include_dir = '../include', namespace=None, macro=None):
+def MakeHeader(
+    output, main_header, include_dir="../include", namespace=None, macro=None
+):
     # Set tag if possible to class variable
     try:
-        proc = Popen(['git', 'describe', '--tags', '--always'], cwd=str(DIR), stdout=PIPE)
+        proc = Popen(
+            ["git", "describe", "--tags", "--always"], cwd=str(DIR), stdout=PIPE
+        )
         out, _ = proc.communicate()
     except OSError:
         pass
@@ -120,10 +128,10 @@ def MakeHeader(output, main_header, include_dir = '../include', namespace=None,
 
     base_dir = os.path.abspath(os.path.join(DIR, include_dir))
     main_header = os.path.join(base_dir, main_header)
-    licence_file = os.path.abspath(os.path.join(DIR, '../LICENSE'))
+    licence_file = os.path.abspath(os.path.join(DIR, "../LICENSE"))
 
     with open(licence_file) as f:
-        HeaderFile.LICENSE = ''.join('// ' + line for line in f)
+        HeaderFile.LICENSE = "".join("// " + line for line in f)
 
     with open(main_header) as f:
         header = f.read()
@@ -134,7 +142,7 @@ def MakeHeader(output, main_header, include_dir = '../include', namespace=None,
     single_header = reduce(add, headers)
 
     if macro is not None:
-        before = 'CLI11_'
+        before = "CLI11_"
         print("Converting macros", before, "->", macro)
         single_header.macro_replacement(before, macro)
 
@@ -142,19 +150,25 @@ def MakeHeader(output, main_header, include_dir = '../include', namespace=None,
         print("Adding namespace", namespace)
         single_header.insert_namespace(namespace)
 
-    with open(output, 'w') as f:
+    with open(output, "w") as f:
         f.write(str(single_header))
 
     print("Created", output)
 
-if __name__ == '__main__':
-    parser = ArgumentParser(usage='Convert source to single header include. Can optionally add namespace and search-replace replacements (for macros).')
+
+if __name__ == "__main__":
+    parser = ArgumentParser(
+        usage="Convert source to single header include. Can optionally add namespace and search-replace replacements (for macros)."
+    )
     parser.add_argument("output", help="Single header file output")
-    parser.add_argument("--main", default='CLI/CLI.hpp', help="The main include file that defines the other files")
-    parser.add_argument("--include", default='../include', help="The include directory")
+    parser.add_argument(
+        "--main",
+        default="CLI/CLI.hpp",
+        help="The main include file that defines the other files",
+    )
+    parser.add_argument("--include", default="../include", help="The include directory")
     parser.add_argument("--namespace", help="Add an optional namespace")
     parser.add_argument("--macro", help="Replaces CLI11_ with NEW_PREFIX_")
     args = parser.parse_args()
 
     MakeHeader(args.output, args.main, args.include, args.namespace, args.macro)
-

scripts/UpdateDownloadProj.py

@@ -5,20 +5,25 @@ from __future__ import print_function, division
 from plumbum import local, cli, FG
 from plumbum.cmd import curl
 
-FILES = [ 'https://raw.githubusercontent.com/Crascit/DownloadProject/master/DownloadProject.cmake',
-          'https://raw.githubusercontent.com/Crascit/DownloadProject/master/DownloadProject.CMakeLists.cmake.in']
+FILES = [
+    "https://raw.githubusercontent.com/Crascit/DownloadProject/master/DownloadProject.cmake",
+    "https://raw.githubusercontent.com/Crascit/DownloadProject/master/DownloadProject.CMakeLists.cmake.in",
+]
 
 DIR = local.path(__file__).dirname
 
+
 def download_file(path):
-    name = path.split('/')[-1]
+    name = path.split("/")[-1]
     (curl[path] > name) & FG
 
+
 class UpdateDownloadProj(cli.Application):
     def main(self):
-        with local.cwd(DIR / '../cmake'):
+        with local.cwd(DIR / "../cmake"):
             for f in FILES:
                 download_file(f)
 
+
 if __name__ == "__main__":
     UpdateDownloadProj()

test_package/conanfile.py

@@ -1,6 +1,7 @@
 from conans import ConanFile, CMake
 import os
 
+
 class HelloTestConan(ConanFile):
     settings = "os", "compiler", "build_type", "arch"
     generators = "cmake"

tests/OptionalTest.cpp

@@ -162,7 +162,8 @@ TEST_F(TApp, BoostOptionalEnumTest) {
 
 TEST_F(TApp, BoostOptionalVector) {
     boost::optional<std::vector<int>> opt;
-    app.add_option_function<std::vector<int>>("-v,--vec", [&opt](const std::vector<int> &v) { opt = v; }, "some vector")
+    app.add_option_function<std::vector<int>>(
+           "-v,--vec", [&opt](const std::vector<int> &v) { opt = v; }, "some vector")
         ->expected(3);
     run();
     EXPECT_FALSE(opt);