Git：发现哪些提交触及了一系列的行 | 发现哪些提交触及了一系列的行

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问题描述

我很难弄清楚如何使用 git blame 来获取触及给定范围的行的提交集。有类似的问题，如，但接受的答案并没有带来更多的进展。

比方说，我有一个定义，从 foo.rb 的第1000行开始。它只有5行，但是改变这些行的提交数量是巨大的。如果我这样做

  git blame foo.rb -L 1000，+ 5

我引用了（最多）五个不同的提交，这些提交改变了这些行，但我也对背后提交感兴趣。

同样，

  git rev-list HEAD  -  foo。 rb | xargs git log --oneline

几乎是我想要的，但我无法指定行范围 git rev-list

我可以传递一个标志给 git blame 以获得曾经触及这五行的提交列表，或者构建提取此类信息的脚本的最快方法是什么？让我们暂时忽略定义曾经多于或少于5行的可能性。

解决方案

， git log has -L git blame ' （aa27064 ...））[mlm @ macbook：〜/ w / mlm / git]

  $ b $ git blame -L150，+ 11  -  git-web--browse.sh 
 a180055a git-web--browse.sh（Giuseppe Bilotta 2010-12-03 17:47:36 +0100 150）死浏览器$浏览器不是
 a180055a git-web--browse.sh（Giuseppe Bilotta 2010-12-03 17:47:36 +0100 151）fi 
 5d6491c7 git-browse-help。 sh（Christian Couder 2007-12-02 06:07:55 +0100 152）fi 
 5d6491c7 git-browse-help.sh（Christian Couder 2007-12-02 06:07:55 +0100 153）
 5d6491c7 git-browse-help.sh（Christian C ouder 2007-12-02 06:07:55 +0100 154）在
 81f42f11的情况下$ browsergit-web--browse.sh（Giuseppe Bilotta 2010-12-03 17:47:38 +0100 155 ）firefox | iceweasel | seamonkey | iceape）
 5d6491c7 git-browse-help.sh（Christian Couder 2007-12-02 06:07:55 +0100 156）＃检查版本，因为firefox< 2.0 do 
 5d6491c7 git-browse-help.sh（Christian Couder 2007-12-02 06:07:55 +0100 157）vers = $（expr$（$ browser_path -version）
 5d6491c7 git-browse-help.sh（Christian Couder 2007-12-02 06:07:55 +0100 158）NEWTAB =' -  new-tab'
 5d6491c7 git-browse-help.sh（Christian Couder 2007-12 -02 06:07:55 +0100 159）测试$ vers-lt 2&& NEWTAB =''
 a0685a4f git-web--browse.sh（Dmitry Potapov 2008-02-09 23： 22:22 -0800 160）$ browser_path$ NEWTAB$ @&

然后：

 <$ c 
然后： 
 
   $ git log --topo-order --graph -u -L 155,155：git-web-- browse.sh 
 * commit 81f42f11496b9117273939c98d270af273c8a463 
 |作者：Giuseppe Bilotta< [email protected]> 
 |日期：星期五十二月3 17:47:38 2010 +0100 
 | 
 | web  -  browse：支持opera，seamonkey和elinks 
 | 
 | T他支持的浏览器列表也在文档中更新。 
 | 
 |签名：Giuseppe Bilotta< [email protected]> 
 |签名：Junio C Hamano< [email protected]> 
 | 
 | diff --git a / git-web--browse.sh b / git-web--browse.sh 
 | --- a / git-web--browse.sh 
 | +++ b / git-web--browse.sh 
 | @@ -143,1 +143,1 @@ 
 | -firefox | iceweasel）
 | + firefox | iceweasel | seamonkey | iceape）
 | 
 * commit a180055a47c6793eaaba6289f623cff32644215b 
 |作者：Giuseppe Bilotta< [email protected]> 
 |日期：周五12月3日17:47:36 2010 +0100 
 | 
 |网页浏览：编码风格
 | 
 |在病例陈述中提供缓解和替代选择。 
 | 
 |签名：Giuseppe Bilotta< [email protected]> 
 |签名：Junio C Hamano< [email protected]> 
 | 
 | diff --git a / git-web--browse.sh b / git-web--browse.sh 
 | --- a / git-web--browse.sh 
 | +++ b / git-web--browse.sh 
 | @@ -142,1 +142,1 @@ 
 | -  firefox | iceweasel）
 | + firefox | iceweasel）
 | 
 * commit 5884f1fe96b33d9666a78e660042b1e3e5f9f4d9 
作者：Christian Couder< [email protected]> 
日期：星期六2月2日07:32:53 2008 +0100 
 
将'git-help--browse.sh'重命名为'git-web--browse.sh'。 
 
签名：Christian Couder< [email protected]> 
签名：Junio C Hamano< [email protected]> 
 
 diff --git a / git-web--browse.sh b / git-web--browse.sh 
 --- / dev / null 
 +++ b / git-web--browse.sh 
 @@ -0,0 +127,1 @@ 
 + firefox | iceweasel）
  
如果您经常使用此功能，您可能会发现一个有用的git别名。为此，请输入〜/ .gitconfig ： 
 
 
  [别名] 
＃遵循文件中特定行的演变
＃arg1 =文件，arg2 =第一行，arg3 =最后一行或仅为第一行的空白
 follow =！sh  - c'git log --topo-order -u -L $ 2，$ {3： -  $ 2}：$ 1' -  
  
现在您可以执行 git follow git-web--browse.sh 155 。
 
I'm having trouble figuring out how to use git blame for getting the set of commits that ever touched a given range of lines. There are similar questions like this one but the accepted answer doesn't bring me much further.  
Let's say I have a definition that starts on line 1000 of foo.rb. It's only only 5 lines long, but the number of commits that ever changed those lines is enormous. If I do
git blame foo.rb -L 1000,+5
I get references to (at most) five distinct commits that changed these lines, but I'm also interested in the commits "behind them". 
Similarly,
git rev-list HEAD -- foo.rb | xargs git log --oneline
is almost what I want, but I can't specify line ranges to git rev-list
Can I pass a flag to git blame to get the list of commits that ever touched those five lines, or what's the quickest way to build a script that extracts such information? Let's ignore for the moment the possibility that the definition once had more or less than 5 lines. 
 解决方案 
Since Git 1.8.4, git log has -L to view the evolution of a range of lines.
For example, suppose you look at git blame's output: 
((aa27064...))[mlm@macbook:~/w/mlm/git]
$ git blame -L150,+11 -- git-web--browse.sh
a180055a git-web--browse.sh (Giuseppe Bilotta 2010-12-03 17:47:36 +0100 150)            die "The browser $browser is not
a180055a git-web--browse.sh (Giuseppe Bilotta 2010-12-03 17:47:36 +0100 151)    fi
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 152) fi
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 153)
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 154) case "$browser" in
81f42f11 git-web--browse.sh (Giuseppe Bilotta 2010-12-03 17:47:38 +0100 155) firefox|iceweasel|seamonkey|iceape)
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 156)    # Check version because firefox < 2.0 do
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 157)    vers=$(expr "$($browser_path -version)"
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 158)    NEWTAB='-new-tab'
5d6491c7 git-browse-help.sh (Christian Couder 2007-12-02 06:07:55 +0100 159)    test "$vers" -lt 2 && NEWTAB=''
a0685a4f git-web--browse.sh (Dmitry Potapov   2008-02-09 23:22:22 -0800 160)    "$browser_path" $NEWTAB "$@" &
And you want to know the history of what is now line 155.
Then:
((aa27064...))[mlm@macbook:~/w/mlm/git]
$ git log --topo-order --graph -u -L 155,155:git-web--browse.sh
* commit 81f42f11496b9117273939c98d270af273c8a463
| Author: Giuseppe Bilotta <[email protected]>
| Date:   Fri Dec 3 17:47:38 2010 +0100
|
|     web--browse: support opera, seamonkey and elinks
|
|     The list of supported browsers is also updated in the documentation.
|
|     Signed-off-by: Giuseppe Bilotta <[email protected]>
|     Signed-off-by: Junio C Hamano <[email protected]>
|
| diff --git a/git-web--browse.sh b/git-web--browse.sh
| --- a/git-web--browse.sh
| +++ b/git-web--browse.sh
| @@ -143,1 +143,1 @@
| -firefox|iceweasel)
| +firefox|iceweasel|seamonkey|iceape)
|
* commit a180055a47c6793eaaba6289f623cff32644215b
| Author: Giuseppe Bilotta <[email protected]>
| Date:   Fri Dec 3 17:47:36 2010 +0100
|
|     web--browse: coding style
|
|     Retab and deindent choices in case statements.
|
|     Signed-off-by: Giuseppe Bilotta <[email protected]>
|     Signed-off-by: Junio C Hamano <[email protected]>
|
| diff --git a/git-web--browse.sh b/git-web--browse.sh
| --- a/git-web--browse.sh
| +++ b/git-web--browse.sh
| @@ -142,1 +142,1 @@
| -    firefox|iceweasel)
| +firefox|iceweasel)
|
* commit 5884f1fe96b33d9666a78e660042b1e3e5f9f4d9
  Author: Christian Couder <[email protected]>
  Date:   Sat Feb 2 07:32:53 2008 +0100

      Rename 'git-help--browse.sh' to 'git-web--browse.sh'.

      Signed-off-by: Christian Couder <[email protected]>
      Signed-off-by: Junio C Hamano <[email protected]>

  diff --git a/git-web--browse.sh b/git-web--browse.sh
  --- /dev/null
  +++ b/git-web--browse.sh
  @@ -0,0 +127,1 @@
  +    firefox|iceweasel)
If you use this functionality frequently, you might find a git alias useful. To do that, put in your ~/.gitconfig:
[alias]
    # Follow evolution of certain lines in a file
    # arg1=file, arg2=first line, arg3=last line or blank for just the first line
    follow = "!sh -c 'git log --topo-order -u -L $2,${3:-$2}:"$1"'" -
And now you can just do git follow git-web--browse.sh 155.
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