ccls编译及其在vscode中使用

1. ccls 编译

1.1 下载预编译好的clang+llvm

• ubuntu 16.04
  wget -c http://releases.llvm.org/8.0.0/clang%2bllvm-8.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz
• ubuntu 18.04
  wget -c http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-18.04.tar.xz

1.2 解压clang+llvm

• tar -xvf clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz

1.3 下载ccls

• git clone --depth=1 --recursive https://github.com/MaskRay/ccls

1.4 复制相关文件至/usr/local下

• cd ccls
• sudo cp -r * /usr/local

1.5 编译ccls

• cd ccls
• cmake -H. -BRelease -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH=/path/to/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-16.04 -DCMAKE_CXX_COMPILER=/usr/bin/g++-7
• cmake --build Release

1.6 参考

• https://github.com/MaskRay/ccls/wiki/Build

2. vscode中使用

• 2.1 vscode中下载ccls插件
• 2.2 setting配置
  "ccls.launch.command": "/path/to/ccls/Release/ccls",
"ccls.cache.directory": "${workspaceFolder}/.ccls-cache/"
• 参考
  https://github.com/MaskRay/ccls/wiki/Visual-Studio-Code