Git拉后的细节变化 [英] Detail change after Git pull

问题描述

如何查看每个或某些文件的详细变化？

好的，这是我向Jefromi提出的问题：

1. 我如何知道是否我正在拉高手？我所做的只是git pull。




2. Master和HEAD，Git的两个默认头像有什么不同？




3. 如何查看特定文件中的详细更改？请再次看到最近一次 git pull 的汇总输出变化




4. git diff 和 git whatchanged ？

解决方案

假设你正在拉高手。您可以通过 master @ {1} （甚至）来引用 master master@{10.minutes.ago} ;请参阅 git-rev-parse man page ），这样你就可以执行诸如

• 查看所有更改： git diff master @ {1}主人

查看给定文件的更改： git diff master @ {1} master< file>




• 查看给定目录中的所有更改： git diff master @ {1} master< dir>


/ ul>



至于你的问题：我怎么知道我是否是主人？......好吧，使用分支是Git工作流的重要组成部分。你应该时刻注意你所在的分支 - 如果你拉动了变化，你想把它们拉到正确的分支！您可以使用命令 git branch 查看当前签出的所有分支的列表，并带有星号。当前分支名称也与 git status 的输出一起打印。我强烈建议浏览要使用的命令页面 - 这是慢慢获取知识的好方法。





最后一个问题： HEAD 是当前签出分支的名称。在这种情况下，你的确可以使用 HEAD 和 HEAD @ {1} ，但它对于使用分支，因为如果你去看看另一个分支。 HEAD 现在是第二个分支，而 HEAD @ {1} 现在是 master - 不是你想要的！





为了节省大量这样的小问题，你应该看看Git教程。例如，网络上有一百万个：





• Pro Git book


• Git Magic


• 以及Google上的450万次点击Git tutorial
  



After a Git pull, its output gives a summary on the change amount.

How can I see each or some of the files detailed changes?

Okay, here is my question to Jefromi:

1. How do I know if I was pulling to master? All I did is "git pull".

2. What does master point to and what is the difference between master and HEAD, the two default heads of Git?

3. How do I see the detailed change in a specific file?

4. How do I see the change in the summary output by the last git pull again?

5. What's difference between git diff and git whatchanged?

解决方案

Suppose you're pulling to master. You can refer to the previous position of master by master@{1} (or even master@{10.minutes.ago}; see the specifying revisions section of the git-rev-parse man page), so that you can do things like

• See all of the changes: git diff master@{1} master

• See the changes to a given file: git diff master@{1} master <file>

• See all the changes within a given directory: git diff master@{1} master <dir>

• See the summary of changes again: git diff --stat master@{1} master

As for your question of "how do I know if I'm on master"... well, using branches is an important part of the Git workflow. You should always be aware of what branch you're on - if you pulled changes, you want to pull them to the right branch! You can see a list of all branches, with an asterisk by the currently checked-out one, with the command git branch. The current branch name is also printed along with the output of git status. I highly recommend skimming the man pages of commands to use - it's a great way to slowly pick up some knowledge.

And your last question: HEAD is the name for the currently checked out branch. You can indeed use HEAD and HEAD@{1} in this context as well, but it's a bit more robust to use the branches, since if you go and check out another branch. HEAD is now that second branch, and HEAD@{1} is now master - not what you want!

To save having to ask a lot of little questions like this, you should probably have a look at a Git tutorial. There are a million on the web, for example:

• The Pro Git book
• Git Magic
• and the 4.5 million hits on Google for "Git tutorial"

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