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Jinja2 in der C ++ - Welt, Teil drei. "Jetzt bist du in Conan"

BildMehr als anderthalb Jahre sind seit der Veröffentlichung des vorherigen Teils vergangen , eine große Anzahl von Funktionen wurden implementiert, mehrere Releases wurden erstellt, aber dies wird nicht diskutiert. Ein wichtiges Ereignis ereignete sich vor einigen Tagen im Leben der Bibliothek: Es wurde dem Haupt- Conan- Repository (Conan-Center-Index) hinzugefügt . Darüber, wie dies geschehen ist, was dafür getan werden musste und was im Allgemeinen getan werden muss, um Ihre Bibliothek dort hinzuzufügen, und wir werden unter dem Strich sprechen.


JFrog tun das Beste, was sie können


BildZunächst ein paar Worte zu Conan (aka conan, aka conan.io) und Conan-Center-Index. Conan ist ein C ++ - orientierter Paket- und Abhängigkeitsmanager (ein weiterer, aber immer beliebter werdender Anbieter). Es ist recht einfach zu installieren, zu konfigurieren und bietet zweifellos mehrere Vorteile:


  1. Es ist nicht an ein bestimmtes Build-System, einen bestimmten Compiler oder ein bestimmtes Betriebssystem gebunden.
  2. Kann ein verteiltes Repository-System verwenden;
  3. Mit artifactory können Sie lokale (private) Projekt- / Team-Repositorys bereitstellen.
  4. Es unterstützt die Bereitstellung von Abhängigkeiten sowohl in binärer (bereits zusammengesetzter) Form als auch deren lokale Zusammenstellung von der Quelle für ein bestimmtes Profil.
  5. Relativ einfach zu konfigurieren und zu verwenden.

, , , . , , (conan profile) , , . ! on-site- - . -, . , , . ( ).


, . bincrafters — , . bincrafters ( ) : .


, conan.io conan-center-index. — -, . (, — ) pull request . — ( , ) . : jinja2cpp/1.1.0


Nothing to do all day but stay in bed


Bild - , conan.io , , , . . , , — , conan-, . . , bincrafters : https://github.com/bincrafters/templates.


, . , bintray ( ) — . : 130. conan-index ( ) 130 . , Jinja2C++. :


  • (Windows/Linux)
  • (x86/x64)
  • ( MSVC — , gcc — ABI )
  • (debug/release)
  • (shared/static)

, , , CI . appveyor, travis, Github Actions , — -, , . ? ? ? … .


Errors flying over your head


№1: , , ( ) — , .
№2: , , .
№3: , -, .



, . , , CI , : "Debug CI build", CI .


, . , - , . — . , . , , ( conan-index bincrafters). , , , , , . , - ( ), . - , issue.


: Jinja2C++ GitHub Actions 30- Linux, 48- Windows, 16 appveyor 5 . : conan-center-index .


If you want to survive, get out of bed!


, . ? :


  1. , . windows, linux, . CI . .
  2. (, . .) . conan index . .
  3. Early Access Programm conan index, . , . issue . : https://github.com/conan-io/conan-center-index/issues/4
  4. . . , - . , , , , , ( — ). .
  5. conan-center-index. PR conan.io team.

conan-center-index , : https://github.com/conan-io/conan-center-index/wiki , , - .


You've got your orders better shoot on sight


, . github-, , . , Jinja2C++. — . :


.
+-- recipes
|   +-- jinja2cpp
|       +-- config.yml
|       +-- 1.1.0
|           +-- CMakeLists.txt
|           +-- conanfile.py
|           +-- conandata.yml
|           +-- test_package
|               +-- CMakeLists.txt
|               +-- conanfile.py

:


config.yml


— , :


---
versions:
  "1.1.0":
    folder: 1.1.0

, , , all, config.yml — ( — ).


1.1.0


, . . . . (conanfile.py), (conandata.yml) test_package, — . , , .


1.1.0/conanfile.py


. — , .


1.1.0/conandata.yml


. , . . , master' . conan-center-index . :


sources:
  "1.1.0":
    url: https://github.com/jinja2cpp/Jinja2Cpp/archive/1.1.0.tar.gz
    sha256: 3d321a144f3774702d3a6252e3a6370cdaff9c96d8761d850bb79cdb45b372c5

- .


1.1.0/CMakeFile.txt


, . , conan', CMake- :


cmake_minimum_required(VERSION 3.4.3)
project(cmake_wrapper)

include(conanbuildinfo.cmake)
conan_basic_setup()

unset (BUILD_SHARED_LIBS CACHE)
if (NOT CMAKE_BUILD_TYPE)
    set (CMAKE_BUILD_TYPE ${JINJA2CPP_CONAN_BUILD_TYPE})
endif ()

add_subdirectory(source_subfolder)

? cmake- (conanbuildinfo.cmake), , . , , , , PIC . ( ) CMake- , conan , . — -. , - . — , msbuild.exe.


1.1.0/test_package


. (conanfile.py) (CMakeLists.txt) (main.cpp), - . , "Hello World!".


1.1.0/test_package/conanfile.py


. , -. :


from conans import ConanFile, CMake, tools
import os

class Jinja2CppTestPackage(ConanFile):
    settings = "os", "arch", "compiler", "build_type"
    generators = "cmake", "cmake_find_package"

    def build(self):
        cmake = CMake(self)
        compiler = self.settings.get_safe("compiler")
        if compiler == 'Visual Studio':
            runtime = self.settings.get_safe("compiler.runtime")
            cmake.definitions["MSVC_RUNTIME_TYPE"] = '/' + runtime

        cmake.configure()
        cmake.build()

    def test(self):
        if not tools.cross_building(self.settings):
            ext = ".exe" if self.settings.os == "Windows" else ""
            bin_path = os.path.join("bin", "jinja2cpp-test-package" + ext)
            self.run(bin_path, run_environment=True)

, . — ( build) ( test). — . , MSVC. — . , . CMake — cmake cmake_find_package. — .


1.1.0/test_package/CMakeLists.txt


:


cmake_minimum_required(VERSION 2.8.0)
project(Jinja2CppTestPackage)

set(CMAKE_CXX_STANDARD 14)

include (${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
conan_basic_setup()

find_package(jinja2cpp REQUIRED)

if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
    if (CMAKE_BUILD_TYPE MATCHES "Debug" AND MSVC_RUNTIME_TYPE)
        set (MSVC_RUNTIME_TYPE "${MSVC_RUNTIME_TYPE}d")
    endif ()

    set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${MSVC_RUNTIME_TYPE}")
    set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${MSVC_RUNTIME_TYPE}")
    set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} ${MSVC_RUNTIME_TYPE}")
    set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/PROFILE")

    message (STATUS "Build type: ${CMAKE_BUILD_TYPE}")
    message (STATUS "USE MSVC RUNTIME: ${MSVC_RUNTIME_TYPE}")

endif()

add_executable(jinja2cpp-test-package main.cpp)
target_link_libraries(jinja2cpp-test-package PRIVATE jinja2cpp::jinja2cpp)

cmake, , conanbuildinfo.cmake, cmake_find_package — find', conan- . : — case-sensitive, (, ) . .


, , , .


1.1.0/test_package/main.cpp


, , conan- :


#include <jinja2cpp/template.h>
#include <iostream>

int main()
{
    std::string source = R"(
{{ ("Hello", 'world') | join }}!!!
{{ ("Hello", 'world') | join(', ') }}!!!
{{ ("Hello", 'world') | join(d = '; ') }}!!!
{{ ("Hello", 'world') | join(d = '; ') | lower }}!!!)";

    jinja2::Template tpl;
    tpl.Load(source);

    std::string result = tpl.RenderAsString(jinja2::ValuesMap()).value();
    std::cout << result << "\n";
}

! smoke-, . — "!", !


Your finger's on the keyboard


, . , , . — -, PEP8. — , , , . :


import os
from conans import ConanFile, CMake, tools
from conans.errors import ConanInvalidConfiguration

class Jinja2cppConan(ConanFile):
# global settings and metainfo

    def config_options(self):
#...

    def configure(self):
#...

    def source(self):
#...

    def build(self):
#...

    def package(self):
#...

    def package_info(self):
#...

conan. :


  • config_options —
  • configure —
  • source —
  • build —
  • package — ( install, )
  • package_info — ,

, . Jinja2C++, CMake-, .



    name = "jinja2cpp"
    license = "MIT"
    homepage = "https://jinja2cpp.dev/"
    url = "https://github.com/conan-io/conan-center-index"
    description = "Jinja2 C++ (and for C++) almost full-conformance template engine implementation"
    topics = ("conan", "cpp14", "cpp17", "jinja2", "string templates", "templates engine")
    exports_sources = ["CMakeLists.txt"]
    generators = "cmake", "cmake_find_package"
    settings = "os", "compiler", "build_type", "arch"
    options = {
        "shared": [True, False], "fPIC": [True, False]
    }
    default_options = {'shared': False, "fPIC": True}
    requires = (
        "variant-lite/1.2.2",
        "expected-lite/0.3.0",
        "optional-lite/3.2.0",
        "string-view-lite/1.3.0",
        "boost/1.72.0",
        "fmt/6.1.2",
        "rapidjson/1.1.0"
    )

    _source_subfolder = "source_subfolder"
    _build_subfolder = "build_subfolder"
    _cpp_std = 14

(name, license, homepage, url, description, topics), (generators, settings, options, default_options), (requires) , (_source_subfloder, _build_subfolder _cpp_std).


, conan-center-index:


  • , community, ( author);
  • url conan-center-index;
  • — homepage;
  • static, shared-. -fPIC. hook-;
  • — ( ), , conan-center-index.

config_options


, :


    def config_options(self):
        if self.settings.os == "Windows":
            del self.options.fPIC

Windows fPIC — . .


config


. , . .


    def configure(self):
        if self.options.shared:
            del self.options.fPIC

        cppstd = self.settings.get_safe("compiler.cppstd")
        if cppstd:
            cppstd_pattern = re.compile(r'^(gnu)?(?P<cppstd>\d+)$')
            m = cppstd_pattern.match(cppstd)
            cppstd_profile = int(m.group("cppstd"))
            if cppstd_profile < 14:
                raise ConanInvalidConfiguration("Minimum C++ Standard required is 14 (provided '{}')".format(cppstd))
            else:
                self._cpp_std = cppstd_profile

— shared- fPIC , (14). - , . : ConanInvalidConfiguration — . , , .


source


:


    def source(self):
        tools.get(**self.conan_data["sources"][self.version])
        extracted_dir = "Jinja2Cpp-" + self.version
        os.rename(extracted_dir, self._source_subfolder)

"" .


build


. , . . CMake :


    def build(self):
        cmake = CMake(self)
        cmake.definitions["JINJA2CPP_BUILD_TESTS"] = False
        cmake.definitions["JINJA2CPP_STRICT_WARNINGS"] = False
        cmake.definitions["JINJA2CPP_BUILD_SHARED"] = self.options.shared
        cmake.definitions["JINJA2CPP_DEPS_MODE"] = "conan-build"
        cmake.definitions["JINJA2CPP_CXX_STANDARD"] = self._cpp_std
        # Conan cmake generator omits the build_type flag for MSVC multiconfiguration CMake,
        # but provide build-type-specific runtime type flag. For now, Jinja2C++ build scripts
        # need to know the build type is being built in order to setup internal flags correctly
        cmake.definitions["JINJA2CPP_CONAN_BUILD_TYPE"] = self.settings.build_type
        compiler = self.settings.get_safe("compiler")
        if compiler == 'Visual Studio':
            # Runtime type configuration for Jinja2C++ should be strictly '/MT' or '/MD'
            runtime = self.settings.get_safe("compiler.runtime")            
            if runtime == 'MTd':
                runtime = 'MT'
            if runtime == 'MDd':
                runtime = 'MD'
            cmake.definitions["JINJA2CPP_MSVC_RUNTIME_TYPE"] = '/' + runtime

        cmake.configure(build_folder=self._build_subfolder)
        cmake.build()

, , cmake' . CMake- , Jinja2C++, .


package


, . , :


    def package(self):
        self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
        self.copy("*.h", dst="include", src=os.path.join(self._source_subfolder, "include"))
        self.copy("*.hpp", dst="include", src=os.path.join(self._source_subfolder, "include"))
        self.copy("*.lib", dst="lib", keep_path=False)
        self.copy("*.dll", dst="bin", keep_path=False)
        self.copy("*.so", dst="lib", keep_path=False)
        self.copy("*.so.*", dst="lib", keep_path=False)
        self.copy("*.dylib", dst="lib", keep_path=False)
        self.copy("*.a", dst="lib", keep_path=False)

— install-. , — . , , :


  • . .
  • .cmake- ( ) . .

— , , install'.


package_info


, : , , , . . , , . :


    def package_info(self):
        self.cpp_info.libs = ["jinja2cpp"]

. define' , .


The sergeant calls (stand up and fight!)


— . . . , ( PR): . , :


> conan create . jinja2cpp/1.1.0@

( jinja2cpp/1.1.0 — )


, . conan- . . . , , . … .


, ( ) . Windows-, Linux-. Windows — shared . Linux… Linux — . - -, conan . : https://hub.docker.com/u/conanio GitHub Actions.


:


[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MD
compiler.version=15
os=Windows
os_build=Windows
[options]
jinja2cpp:shared=False
[env]

[build_requires]

. :


> conan create . jinja2cpp/1.1.0@ -p profile_md.txt

profile_md.txt — .


: ( — , , ) . , , . , pull request' conan-center-index . , , , . — conan'. , , Visual Studio . , , .


You'll be the hero of the neighbourhood


, conan-center-index , , , , , . , , C++ . conan — , , . , , , . , — .


:


conan-center-index
Issue EAP
Jinja2C++
conan-center


Im Text des Artikels wurden die Zeilen aus dem Lied „Du bist jetzt in der Armee“ von Status Quo als Untertitel verwendet

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