在Sun/Oracle工作了N(>12)年后，对webrev工具甚为喜欢，因为其易用性确实非常好。幸运的是，有工程师将webrev工具放到了GitHub上，而且支持git。 下面给出使用webrev工具创建代码比对网页的全过程。 当然，首先得保证代码管理工具git在Linux(我用的是Ubuntu14.04)上已经就位和已经安装了ksh，因为webrev工具是基于ksh实现的。

第1步： Clone webrev from

veli$ cd /var/tmpveli$ git clone https://github.com/joyent/webrev.gitCloning into 'webrev'...remote: Counting objects: 27, done.remote: Total 27 (delta 0), reused 0 (delta 0), pack-reused 27Unpacking objects: 100% (27/27), done.Checking connectivity... done.veli$ tree webrevwebrev├── bin│   ├── wdiff│   ├── webrev│   └── which_scm├── etc│   ├── its.conf│   └── its.reg└── README.md

第2步： Add webrev/bin to PATH

veli$ export PATH=/var/tmp/webrev/bin:$PATHveli$ type webrevwebrev is /var/tmp/webrev/bin/webrev

第3步： Set up apache2

veli$ sudo apt-get install apache2veli$ sudo service apache2 statusveli$ cd /var/www/html && sudo ln -s /var/tmp tveli$ sudo vim /etc/apache2/apache2.conf # add "ServerName localhost:80"veli$ sudo service apache2 restart

第4步： clone my source code and update something

veli$ git clone https://github.com/idorax/vCodeHub.gitCloning into 'vCodeHub'...remote: Counting objects: 359, done.remote: Compressing objects: 100% (100/100), done.remote: Total 359 (delta 58), reused 0 (delta 0), pack-reused 254Receiving objects: 100% (359/359), 7.85 MiB | 1.61 MiB/s, done.Resolving deltas: 100% (164/164), done.Checking connectivity... done.

Now update a file,

veli$ cd /var/tmp/sandbox/vCodeHub/sharpsword/cveli$ vi sudorax.c

第5步： commit changes

veli$ git commit -a  1 05/14/2017: demo to use webrev  2 # Please enter the commit message for your changes. Lines starting  3 # with '#' will be ignored, and an empty message aborts the commit.  4 # On branch master  5 # Your branch is up-to-date with 'origin/master'.  6 #  7 # Changes to be committed:  8 #       modified:   sudorax.c  9 #veli$ git showcommit eb08966d562c03abbe538615a60b0ba648c9cadfAuthor: Vector Li 
     
      Date:   Sun May 14 11:29:11 2017 +0800    05/14/2017: demo to use webrevdiff --git a/sharpsword/c/sudorax.c b/sharpsword/c/sudorax.cindex 3f334c5..4645870 100644--- a/sharpsword/c/sudorax.c+++ b/sharpsword/c/sudorax.c@@ -46,12 +46,9 @@ typedef unsigned long uint32_t; static uint64_t power(int32_t n, uint32_t m) {-       uint32_t i;        uint64_t sum = 1;--       for (i = 0; i < m; i++)+       for (uint32_t i = 0; i < m; i++)                sum *= n;-        return sum; }
     

第6步： create webrev

veli$ webrevWARNING: codereview(1) not found.   SCM detected: git File list from: git ... Done.      Workspace: /var/tmp/sandbox/vCodeHub (at eb08966d562c)Compare against: origin/master (https://github.com/idorax/vCodeHub.git at c64cf7c91ba6)      Output to: /var/tmp/sandbox/webrev   Output Files:        sharpsword/c/sudorax.c                 patch cdiffs udiffs wdiffs sdiffs frames old new Generating PDF: Skipped: no output available     index.html: Done.

第7步: 在firefox里访问webrev

veli$ egrep '127.0.0.1' /etc/hosts127.0.0.1    localhost127.0.0.1    idorax

于是访问 http://idorax/t/sandbox/webrev

多么熟悉的web页面，终于出现了！ Thank opensolaris, thank ! 点击Frames,

多么熟悉的代码比对页面，倍感亲切呀：-）

结束语： 能在家里的Linux上用上webrev，实在是太幸福了！归根结底就一句话， 感谢opensolaris, 感谢illumos!