Git Diff 插件配置

1.查看系统支持哪些插件

使用$ git difftool --tool-help命令来查看系统支持哪些Git Diff插件。

$ git difftool --tool-help
'git difftool --tool=' may be set to one of the following:
                vimdiff
                vimdiff2
                vimdiff3

The following tools are valid, but not currently available:
                araxis
                bc
                bc3
                codecompare
                deltawalker
                diffmerge
                diffuse
                ecmerge
                emerge
                examdiff
                gvimdiff
                gvimdiff2
                gvimdiff3
                kdiff3
                kompare
                meld
                opendiff
                p4merge
                tkdiff
                winmerge
                xxdiff

Some of the tools listed above only work in a windowed
environment. If run in a terminal-only session, they will fail.

2.安装DiffMerge插件

https://sourcegear.com/diffmerge/

电脑是win64所以在首页选择Windows Installer(64big)，下载后安装。

3.根据DiffMerge官方文档，去配置

进入DiffMerge首页--->“Products”--->"DiffMerge"--->"Documentation"--->"Integration With Third-Party Software"

根据之前不同的安装 Git 方式，选择不同的配置方式

1. GitHub for Windows or Git Bash Shell ;
2. Git for Windows (MSysGit) or Git Cmd ;
3. Git Under Cygwin or GitBash Shell ;

注意上图中这种分成三行的命令，是一个命令行，执行时候，分三次复制，并加空格。不要一下复制，直接执行;

C:\> git config --global difftool.diffmerge.cmd
    "C:/Program\ Files/SourceGear/Common/DiffMerge/sgdm.exe
        \"$LOCAL\" \"$REMOTE\""

如果安装不成功，检查DiffMerge安装的目录，和命令中目录是否一致。