Ag （the_silver_searcher）安装使用

小鱼儿 2021-11-26 22:56 187阅读 0赞

## if (I am a Programmer || I have a strong sense of time) I use ag ##

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## 1. 安装命令行ag(代码中行首的“\\”是多余的) ##

\#!/usr/bin/env bash
    \#Author Leslie Guan
    \#make sure you have the root permission
    \#Usage . install_ag.sh
    set -x
    TEMP_DIR=$(mktemp -d Leslie.Guan.XXXXXX)
    cd ${TEMP_DIR}
    wget https://github.com/ggreer/the_silver_searcher/archive/master.zip
    TAR_DIR=$(unzip *.zip)
    TAR_DIR=${TAR_DIR%%/*}
    TAR_DIR=${TAR_DIR##*:}
    cd ${TAR_DIR}
    apt-get install -y automake pkg-config libpcre3-dev zlib1g-dev liblzma-dev --force-yes
    ./build.sh && make install
    cd ../../
    rm -rf ${TEMP_DIR}
    ag -V
    set +x

ubuntu13.10以后可以直接运行

apt-get install silversearcher-ag

[ag\_GitHub][ag_GitHub]

## 2. 安装Vim插件(*必须先安装ag命令行工具*)(代码中行首的“\\”是多余的) ##

\#!/usr/bin/env bash
    \#Author Leslie Guan
    \#make sure you have the root permission
    \#Usage . install_Ag4Vim.sh
    set -x
    TEMP_DIR=$(mktemp -d Leslie.Guan.XXXXXX)
    cd ${TEMP_DIR}
    wget https://github.com/rking/ag.vim/archive/master.zip
    TAR_DIR=$(unzip *.zip)
    TAR_DIR=${TAR_DIR%%/*}
    TAR_DIR=${TAR_DIR##*:}
    cd ${TAR_DIR}
    cp cp {plugin,autoload,doc} /usr/share/vim/vimcurrent/ -rf 
    cd ../../
    rm -rf ${TEMP_DIR}                                                                                                                                            
    set +x

[ag.vim\_GitHub][ag.vim_GitHub]

## 3. 使用 ##

命令行使用

ag HelloWorld
    ag HelloWorld path/to/search

Ag HelloWorld
    Ag HelloWorld path/to/search

在Ag查找出来的quickfix窗口中，你可以使用下列命令：

e    to open file and close the quickfix window
    o    to open (same as enter)
    go   to preview file (open but maintain focus on ag.vim results)
    t    to open in new tab
    T    to open in new tab silently
    h    to open in horizontal split
    H    to open in horizontal split silently
    v    to open in vertical split
    gv   to open in vertical split silently
    q    to close the quickfix window

*详细使用方法请查看帮助：*

man ag

## 4. Why ag ##

*速度对比ag>ack>grep*

在android全部源码中查找（测试环境20线程32GB内存）：

time ag -i activity
    real    2m42.568s
    user    0m16.049s
    sys 1m29.358s

time ack -i activity
    real    5m17.780s
    user    1m35.830s
    sys 0m17.521s

time grep -Hrni activity .
    real    49m27.518s
    user    43m13.918s
    sys 0m38.178s

[What's so great about Ag?][What_s so great about Ag]

It searches code about 3–5× faster than ack.
    It ignores file patterns from your .gitignore and .hgignore.
    If there are files in your source repo you don't want to search, just add their patterns to a .agignore file. *cough* extern *cough*
    The command name is 33% shorter than ack!

转载于:https://www.cnblogs.com/GMCisMarkdownCraftsman/p/3795315.html

[ag_GitHub]: https://github.com/ggreer/the_silver_searcher
[ag.vim_GitHub]: https://github.com/rking/ag.vim
[What_s so great about Ag]: https://ruby-china.org/topics/8728