Ubuntu 14.04下Vim安装YouCompleMe插件

最权威的原始步骤可以参考github中关于此插件的README.md，如果时间允许的话，尽量多看几遍可以避免很多不必要的麻烦。版本检测，一般新系统都满足，保证Vim>= 7.3.584，支持python就可以了。

第一步：下载Vundle和YouCompleteMe插件

输入以下指令，下载Vundlegit clone https://github.com/gmarik/Vundle.vim.git ~/.vim/bundle/Vundle.vim下载成功后，在用户根目录下面，修改.vimrc文件，追加下面语句：set nocompatiblefiletype offset rtp+=~/.vim/bundle/Vundle.vimcall vundle#begin（）Plugin "gmarik/Vundle.vim"Plugin "Valloric/YouCompleteMe"call vundle#end（）filetype plugin indent on然后在vim中先按Esc建，并且输入以下指令安装插件：:PluginInstall或在终端中输入：vim +PluginInstall +qall

第二步：下载其他必要文件

下载最新版本的LLVM

强烈建议下载已经编译好的二级制文件包，如果下载源文件自己编译的话，你永远都不知道会出什么奇葩错误然后解压到指定文件夹，过程如下：cd ~mkdir ycm_tempcd ycm_tempxz -d clang+llvm-3.6.0-x86_64-linux-gnu-Ubuntu-14.04.tar.xztar -xvf clang+llvm-3.6.0-x86_64-linux-gnu-ubuntu-14.04.tar修改clang+llvm-3.6.0-x86_64-linux-gnu文件夹名字为llvm_root_dir

下载最新版本的cmake

强烈建议下载已经编译好的二级制文件包，如果下载源文件自己编译的话，你永远都不知道会出什么奇葩错误然后将cmake连接至/usr/bin，比如我的是放在Downloads文件夹下面的，就地解压，并链接tar zxvf cmake-3.2.2-Linux-x86_64.tar.gzln -s /home/li/Downloads/cmake-3.2.2/bin/cmake /usr/bin/cmake

第三步：编译文件

运行如下指令，编译文件cd ~mkdir ycm_buildcd ycm_buildcmake -G "Unix Makefiles" -DPATH_TO_LLVM_ROOT=~/ycm_temp/llvm_root_dir . ~/.vim/bundle/YouCompleteMe/third_party/ycmd/cppmake ycm_support_libs 这样以来，就算是安装基本上完成了。

第四步：配置vim

虽然安装编译完成了，但距离成功还差一步，配置vim（修改.vimrc），这个根据需要配置便可，比如我的如下：let g:ycm_global_ycm_extra_conf = "/home/li/.vim/bundle/YouCompleteMe/.ycm_extra_conf.pylet g:ycm_seed_identifiers_with_syntax=1" 语法关键字补全let g:ycm_confirm_extra_conf=0 " 打开vim时不再询问是否加载ycm_extra_conf.py配置inoremap <expr> <CR>pumvisible（）？ "<C-y>" : "<CR>""回车即选中当前项set completeopt=longest,menu "让Vim的补全菜单行为与一般IDE一致（参考VimTip1228）

出现的问题：

E492: Not an editor command:

可能的原因有很多，比如我遇到的是权限问题，为.vim的追加写入权限

不能正常启动，有很多红色的错误

可能的原因同样很多，比如我遇到的是使用编译器版本不合适，比如gcc5.1.0编译运行完成之后，错的不知其所以然

没有.ycm_extra.conf.py文件

可以参考YCM作者的文件自己修改或者直接使用它亦或者使用我的（见附件）。将它放在项目根目录或者指定目录，比如我放在$HOME/.vim/bundle/YouCompleteMe/.ycm_extra_conf.py当然记得修改.vimrc中相应的那行哦！

出现其他未知错误

vim中输入:YcmDebugInfo查看相关信息

如果完全按照本教程步骤来，还是出现了大量错误

此时要做的不是搜索其他教程，而是详细阅读README.md

附件

# This file is NOT licensed under the GPLv3, which is the license for the rest# of YouCompleteMe.## Here"s the license text for this file:## This is free and unencumbered software released into the public domain.## Anyone is free to copy, modify, publish, use, compile, sell, or# distribute this software, either in source code form or as a compiled# binary, for any purpose, commercial or non-commercial, and by any# means.## In jurisdictions that recognize copyright laws, the author or authors# of this software dedicate any and all copyright interest in the# software to the public domain. We make this dedication for the benefit# of the public at large and to the detriment of our heirs and# successors. We intend this dedication to be an overt act of# relinquishment in perpetuity of all present and future rights to this# software under copyright law.## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR# OTHER DEALINGS IN THE SOFTWARE.## For more information, please refer to <http://unlicense.org/>import osimport ycm_coreflags = ["-Wall","-Wextra","-Wno-long-long","-Wno-variadic-macros","-fexceptions","-stdlib=libc++","-std=c++11","-x","c++","-I",".","-isystem","/usr/include","-isystem","/usr/local/include","-isystem","/Library/Developer/CommandLineTools/usr/include","-isystem","/Library/Developer/CommandLineTools/usr/bin/../lib/c++/v1",]compilation_database_folder = ""if os.path.exists（ compilation_database_folder ）:database = ycm_core.CompilationDatabase（ compilation_database_folder ）else:database = NoneSOURCE_EXTENSIONS = [ ".cpp", ".cxx", ".cc", ".c", ".m", ".mm" ]def DirectoryOfThisScript（）:return os.path.dirname（ os.path.abspath（ __file__ ））def MakeRelativePathsInFlagsAbsolute（ flags, working_directory ）:if not working_directory:return list（ flags ）new_flags = []make_next_absolute = Falsepath_flags = [ "-isystem", "-I", "-iquote", "--sysroot=" ]for flag in flags:new_flag = flagif make_next_absolute:make_next_absolute = Falseif not flag.startswith（ "/" ）:new_flag = os.path.join（ working_directory, flag ）for path_flag in path_flags:if flag == path_flag:make_next_absolute = Truebreakif flag.startswith（ path_flag ）:path = flag[ len（ path_flag ）: ]new_flag = path_flag + os.path.join（ working_directory, path ）breakif new_flag:new_flags.append（ new_flag ）return new_flagsdef IsHeaderFile（ filename ）:extension = os.path.splitext（ filename ）[ 1 ]return extension in [ ".h", ".hxx", ".hpp", ".hh" ]def GetCompilationInfoForFile（ filename ）:if IsHeaderFile（ filename ）:basename = os.path.splitext（ filename ）[ 0 ]for extension in SOURCE_EXTENSIONS:replacement_file = basename + extensionif os.path.exists（ replacement_file ）:compilation_info = database.GetCompilationInfoForFile（replacement_file ）if compilation_info.compiler_flags_:return compilation_inforeturn Nonereturn database.GetCompilationInfoForFile（ filename ）def FlagsForFile（ filename, **kwargs ）:if database:compilation_info = GetCompilationInfoForFile（ filename ）if not compilation_info:return Nonefinal_flags = MakeRelativePathsInFlagsAbsolute（compilation_info.compiler_flags_,compilation_info.compiler_working_dir_ ）else:relative_to = DirectoryOfThisScript（）final_flags = MakeRelativePathsInFlagsAbsolute（ flags, relative_to ）return {"flags": final_flags,"do_cache": True}Vim好用的插件: YouCompleteMe http://www.linuxidc.com/Linux/2015-08/122485.htmUbuntu 15.04下为Vim安装YouCompleteMe插件 http://www.linuxidc.com/Linux/2015-07/120352.htmVim自动补全插件----YouCompleteMe安装与配置 http://www.linuxidc.com/Linux/2014-04/99719.htm更多Ubuntu相关信息见Ubuntu 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=2本文永久更新链接地址