什么是“git add -A：/”做？ [英] What does "git add -A :/" do?

问题描述

我看到有同事使用 git add -A：/ 来暂存存储库中的文件，但我无法找到文档。我错过了什么？

注意：我明白标记 -A 的含义（这个问题已经在< ）。我的问题特别是关于：/ 以及它在 git add 中扮演的角色。

：只有/ 。根据 git-add文档，最后一个参数是 pathspec 的。它的定义见 gitglossary的文档。让我引用相关部分（我把重要句子加粗）：

以冒号开头的pathspec：has特殊含义。在简短形式中，前面的冒号：后面跟着零个或多个魔术签名字母（可选地以另一个冒号:)结束，其余部分是匹配路径的模式。

在结束魔法签名的可选冒号中，如果模式以不能成为魔术签名且不是冒号的字符开头，则可以省略。长的形式，领先的冒号：后面跟着一个开括号（一个逗号分隔的零个或多个魔术字列表和一个紧密的括号），剩下的就是匹配路径的模式。 p>

魔术签名由一个非字母数字的ASCII符号组成。

top /

即使从内部运行命令，魔术字顶部（助记符：/）也会使模式与工作树的根相匹配一个子目录。

目前只有斜线/被识别为魔法签名，但我们预计在稍后会支持更多类型的魔法你可以看到如果一个 pathspec 是，你可以看到 gins by ：/ 或 :( :(顶部）那么 pathspec 的部分是定义工作树的根。

git add：/ p>

I have seen colleagues using git add -A :/ for staging files in repositories, but I am unable to find what that does in the documentation. What am I missing?

Note: I understand what the flag -A does (this question has been answered in SO before). My question is specifically about :/ and the role it plays in git add.

解决方案

As you already know the -A option, let's talk about git add :/ only. According to the documentation of git-add, the last argument is a pathspec. The definition of it is in the documentation of gitglossary. Let me quote the releant parts (I put the important sentences in bold):

A pathspec that begins with a colon : has special meaning. In the short form, the leading colon : is followed by zero or more "magic signature" letters (which optionally is terminated by another colon :), and the remainder is the pattern to match against the path. The optional colon that terminates the "magic signature" can be omitted if the pattern begins with a character that cannot be a "magic signature" and is not a colon.

In the long form, the leading colon : is followed by a open parenthesis (, a comma-separated list of zero or more "magic words", and a close parentheses ), and the remainder is the pattern to match against the path.

The "magic signature" consists of an ASCII symbol that is not alphanumeric.

top /

The magic word top (mnemonic: /) makes the pattern match from the root of the working tree, even when you are running the command from inside a subdirectory.

Currently only the slash / is recognized as the "magic signature", but it is envisioned that we will support more types of magic in later versions of git.

You can see that if a pathspec begins by :/ or :(top) then that part of the pathspec is by definition the root of the working tree.

git add :/ stages all files in the working tree.

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