Cygwin：指南针命令在安装指南针后不起作用

Question

我在Windows上使用cygwin64。我已经使用命令

gem install compass 

安装指南针和已经得到了结果：

Successfully installed compass-1.0.3 
Parsing documentation for compass-1.0.3 
Done installing documentation for compass after 1 seconds 
1 gem installed 

但是当我尝试使用命令compass，它说的命令不存在。

cygwin与我在CMD中进行安装时的区别在于它的工作原理。如果我做

gem install compass 

从CMD

，我得到一个不同类型的安装，包括8个宝石：

C:\Windows\System32>gem install compass 
Fetching: chunky_png-1.3.5.gem (100%) 
Successfully installed chunky_png-1.3.5 
Fetching: multi_json-1.11.2.gem (100%) 
Successfully installed multi_json-1.11.2 
Fetching: compass-core-1.0.3.gem (100%) 
Successfully installed compass-core-1.0.3 
Fetching: compass-import-once-1.0.5.gem (100%) 
Successfully installed compass-import-once-1.0.5 
Fetching: rb-fsevent-0.9.7.gem (100%) 
Successfully installed rb-fsevent-0.9.7 
Fetching: ffi-1.9.10-x86-mingw32.gem (100%) 
Successfully installed ffi-1.9.10-x86-mingw32 
Fetching: rb-inotify-0.9.7.gem (100%) 
Successfully installed rb-inotify-0.9.7 
Fetching: compass-1.0.3.gem (100%) 
    Compass is charityware. If you love it, please donate on our behalf at http://umdf.org/compass Thanks! 
Successfully installed compass-1.0.3 
Parsing documentation for chunky_png-1.3.5 
Installing ri documentation for chunky_png-1.3.5 
Parsing documentation for multi_json-1.11.2 
Installing ri documentation for multi_json-1.11.2 
Parsing documentation for compass-core-1.0.3 
Installing ri documentation for compass-core-1.0.3 
Parsing documentation for compass-import-once-1.0.5 
Installing ri documentation for compass-import-once-1.0.5 
Parsing documentation for rb-fsevent-0.9.7 
Installing ri documentation for rb-fsevent-0.9.7 
Parsing documentation for ffi-1.9.10-x86-mingw32 
Installing ri documentation for ffi-1.9.10-x86-mingw32 
Parsing documentation for rb-inotify-0.9.7 
Installing ri documentation for rb-inotify-0.9.7 
Parsing documentation for compass-1.0.3 
Installing ri documentation for compass-1.0.3 
Done installing documentation for chunky_png, multi_json, compass-core, compass-import-once, rb-fsevent, ffi, rb-inotify, compass after 8 seconds 
8 gems installed 

所以，应该不是这个安装是Cygwin的一样吗？ 我在rubygems.org上的指南针页面上看到列出了一些“运行时依赖项” - 这也许可以解释它吗？所以cygwin不下载依赖关系，我必须手动执行它？

最大的问题是，为什么没有指南针作为cygwin安装程序包提供？

顺便说一下，ruby已经从cygwin安装程序包安装，sass已经安装并正常工作。

有两个地方罗盘文件：

C:\cygwin64\home\(my username)\bin\compass 
C:\cygwin64\home\(my username)\.gem\ruby\gems\compass-1.0.3\bin\compass 

，但它甚至没有寻找这个文件，当我尝试运行compass命令。

---

更新：

我安装了这些宝石：现在当 chunky_png multi_json 指南针核 指南针导入一次 RB-fsevent FFI RB-inotify的

和我运行指南针它寻找的文件，但说：

C:\Ruby22\bin\ruby.exe: No such file or directory -- /cygdrive/c/Ruby22/bin/compass (LoadError) 

这是朝正确方向迈出的一步。但它在ruby的windows安装中查找它，而不是cygwin安装。

此命令which -a compass给出：

/cygdrive/c/Ruby22/bin/compass 
/cygdrive/c/Ruby22/bin/compass 

^这应该是usr\bin\gem我想..

Answer 1

我也有类似的问题。注意你不要在你的Windows上安装的Ruby实例和Cygwin Ruby之间混淆。您需要将Ruby bin目录添加到PATH中。以下是我如何做的（在我用gem安装sass之后）：

$ sass 
-bash: sass: command not found 

$ vi .bashrc 

$ tail -2 .bashrc 

export PATH=$PATH:/home/luca/bin/ 

$ source .bashrc 

$ sass -v 
Sass 3.4.23 (Selective Steve)