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| <h2><a class="anchor" aria-hidden="true" id="代码风格"></a><a href="#代码风格" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>代码风格</h2> |
| <p>SINGA代码库在<a href="http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml">CPP</a>和<a href="http://google.github.io/styleguide/pyguide.html">Python</a>代码中都遵循Google风格。</p> |
| <p>强制执行Google编码风格的一个简单方法是使用Visual Studio Code编辑器中的linting和格式化工具:</p> |
| <ul> |
| <li><a href="https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools">C/C++扩展</a></li> |
| <li><a href="https://marketplace.visualstudio.com/items?itemName=ms-python.python">Python扩展</a></li> |
| <li><a href="https://marketplace.visualstudio.com/items?itemName=mine.cpplint">cpplint扩展</a></li> |
| <li><a href="https://marketplace.visualstudio.com/items?itemName=xaver.clang-format">Clang-Format</a></li> |
| </ul> |
| <p>安装扩展后，编辑<code>settings.json</code>文件：</p> |
| <pre><code class="hljs css language-json">{ |
| <span class="hljs-attr">"[cpp]"</span>: { |
| <span class="hljs-attr">"editor.defaultFormatter"</span>: <span class="hljs-string">"xaver.clang-format"</span> |
| }, |
| <span class="hljs-attr">"cpplint.cpplintPath"</span>: <span class="hljs-string">"path/to/cpplint"</span>, |
| |
| <span class="hljs-attr">"editor.formatOnSave"</span>: <span class="hljs-literal">true</span>, |
| <span class="hljs-attr">"python.formatting.provider"</span>: <span class="hljs-string">"yapf"</span>, |
| <span class="hljs-attr">"python.linting.enabled"</span>: <span class="hljs-literal">true</span>, |
| <span class="hljs-attr">"python.linting.lintOnSave"</span>: <span class="hljs-literal">true</span>, |
| <span class="hljs-attr">"clang-format.language.cpp.style"</span>: <span class="hljs-string">"google"</span>, |
| <span class="hljs-attr">"python.formatting.yapfArgs"</span>: [<span class="hljs-string">"--style"</span>, <span class="hljs-string">"{based_on_style: google}"</span>] |
| } |
| </code></pre> |
| <p>根据您的操作系统，用户设置文件位于以下位置：</p> |
| <ol> |
| <li>Windows %APPDATA%\Code\User\settings.json</li> |
| <li>macOS "$HOME/Library/Application Support/Code/User/settings.json"</li> |
| <li>Linux "$HOME/.config/Code/User/settings.json"</li> |
| </ol> |
| <p>配置是在相应的配置文件中指定的。而这些工具会自动查找项目根目录下的配置文件，比如<code>.pylintrc</code>。</p> |
| <h4><a class="anchor" aria-hidden="true" id="安装必要工具"></a><a href="#安装必要工具" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>安装必要工具</h4> |
| <p>最理想的情况是所有贡献者都使用相同版本的代码格式化工具（clang-format 9.0.0和yapf 0.29.0），这样在不同PR中的代码格式化就会完全相同，从而摆脱github pull request冲突。</p> |
| <p>首先，安装LLVM 9.0，它提供了clang-format 9.0.0版本，LLVM的下载页面如下:</p> |
| <ul> |
| <li><p><a href="http://releases.llvm.org/download.html#9.0.0">LLVM</a></p> |
| <ul> |
| <li><p>Ubuntu系统：</p> |
| <pre><code class="hljs css language-sh">sudo apt-get install clang-format-9 |
| </code></pre></li> |
| <li><p>Windows系统，下载预编译包并安装。</p></li> |
| </ul></li> |
| </ul> |
| <p>然后，安装cpplint, pylint和yapf</p> |
| <ul> |
| <li><p>Ubuntu或OSX:</p> |
| <pre><code class="hljs"><span class="hljs-meta">$</span><span class="bash"> sudo pip install cpplint</span> |
| <span class="hljs-meta">$</span><span class="bash"> <span class="hljs-built_in">which</span> cpplint</span> |
| /path/to/cpplint |
| <span class="hljs-meta"> |
| $</span><span class="bash"> pip install yapf==0.29.0</span> |
| <span class="hljs-meta">$</span><span class="bash"> pip install pylint</span> |
| </code></pre></li> |
| <li><p>Windows: 安装Anaconda进行包管理</p> |
| <pre><code class="hljs">$ pip <span class="hljs-keyword">install</span> cpplint |
| $ <span class="hljs-keyword">where</span> cpplint |
| C:/<span class="hljs-keyword">path</span>/<span class="hljs-keyword">to</span>/cpplint.exe |
| |
| $ pip <span class="hljs-keyword">install</span> yapf==<span class="hljs-number">0.29</span><span class="hljs-number">.0</span> |
| $ pip <span class="hljs-keyword">install</span> pylint |
| </code></pre></li> |
| </ul> |
| <h4><a class="anchor" aria-hidden="true" id="使用"></a><a href="#使用" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>使用</h4> |
| <ul> |
| <li>配置后，在编辑源代码文件时，linting会自动启用。错误和警告会在Visual Studio Code <code>PROBLEMS</code>面板中列出。</li> |
| <li>代码格式化可以通过调出Command Palette(Windows中为<code>Shift+Ctrl+P</code>，OS X中为<code>Shift+Command+P</code>)并输入<code>Format Document</code>来完成。</li> |
| </ul> |
| <h4><a class="anchor" aria-hidden="true" id="提交"></a><a href="#提交" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>提交</h4> |
| <p>修正格式错误以后就可以提交pull request了。</p> |
| <h2><a class="anchor" aria-hidden="true" id="开发环境"></a><a href="#开发环境" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>开发环境</h2> |
| <p>推荐使用Visual Studio Code作为编辑器。可以安装Python、C/C++、代码拼写检查器、autoDocstring、vim、远程开发等扩展。这些扩展的参考配置（即<code>settings.json</code>）可以在<a href="https://gist.github.com/nudles/3d23cfb6ffb30ca7636c45fe60278c55">这里</a>查看。</p> |
| <p>如果更新CPP代码，需要从<a href="/docs/4.0.0_Chinese/build">源文件</a>重新编译SINGA。建议使用<code>*-devel Docker</code>镜像中的原生构建工具或使用<code>conda build</code>。</p> |
| <p>如果要只更新Python代码，您可以安装一次SINGA，然后复制更新后的Python文件来替换Python安装文件夹中的文件。</p> |
| <pre><code class="hljs css language-shell">cp python/singa/xx.py <path to conda>/lib/python3.7/site-packages/singa/ |
| </code></pre> |
| <h2><a class="anchor" aria-hidden="true" id="工作流程"></a><a href="#工作流程" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>工作流程</h2> |
| <p>请参阅<a href="/docs/4.0.0_Chinese/git-workflow">git工作流程页面</a>.</p> |
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