如何计算git中两个提交之间改变的行数？(How can I calculate the number of lines changed between two commits in git?)

如何计算git中两个提交之间改变的行数？(How can I calculate the number of lines changed between two commits in git?)

有没有什么简单的方法来计算在git中两次提交之间改变的行数？ 我知道我可以做一个git diff ，并计数线，但这似乎是乏味的。 我也想知道我该怎么做，包括我自己在linecounts中的提交。

Is there any easy way to calculate the number of lines changed between two commits in git? I know I can do a git diff, and count the lines, but this seems tedious. I'd also like to know how I can do this, including only my own commits in the linecounts.

最满意答案

你想要git diff的--stat选项，或者如果你想在一个脚本中解析这个，那么--numstat选项。

git diff --stat <commit-ish> <commit-ish>

--stat生成您在合并之后看到的人类可读输出; --numstat生成一个很好的表格布局，脚本可以轻松解释。

我以某种方式错过了您同时在多个提交上执行此操作 - 这是git log的任务。 罗恩·德维拉（Ron DeVera）就是这样介绍的，但实际上你可以做的比他提到的还要多。 由于git log内部调用diff机制以打印所请求的信息，所以您可以给它任何diff stat选项 - 不只是--shortstat 。 你可能想要使用的是：

git log --author="Your name" --stat <commit1>..<commit2>

但是您也可以使用--numstat或--shortstat 。 git log也可以以各种其他方式选择提交 - 看看文档 。 您可能对--since （而不是指定提交范围，只是从上周选择提交）和--no-merges （合并提交不实际引入更改）以及漂亮的输出选项（ --pretty=oneline, short, medium, full... ）。

这是一个一线程，可以从git log获取总体更改，而不是按照每次提交更改（根据需要更改提交选择选项） - 这是由commit1到commit2提交的）：

git log --numstat --pretty="%H" --author="Your Name" commit1..commit2 | awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d, -%d\n", plus, minus)}'

（你必须让git日志打印关于提交的一些识别信息;我随意选择哈希，然后使用awk只选出三个字段的行，这些字段是具有统计信息的行）

You want the --stat option of git diff, or if you're looking to parse this in a script, the --numstat option.

git diff --stat <commit-ish> <commit-ish>

--stat produces the human-readable output you're used to seeing after merges; --numstat produces a nice table layout that scripts can easily interpret.

I somehow missed that you were looking to do this on multiple commits at the same time - that's a task for git log. Ron DeVera touches on this, but you can actually do a lot more than what he mentions. Since git log internally calls the diff machinery in order to print requested information, you can give it any of the diff stat options - not just --shortstat. What you likely want to use is:

git log --author="Your name" --stat <commit1>..<commit2>

but you can use --numstat or --shortstat as well. git log can also select commits in a variety other ways - have a look at the documentation. You might be interested in things like --since (rather than specifying commit ranges, just select commits since last week) and --no-merges (merge commits don't actually introduce changes), as well as the pretty output options (--pretty=oneline, short, medium, full...).

Here's a one-liner to get total changes instead of per-commit changes from git log (change the commit selection options as desired - this is commits by you, from commit1 to commit2):

git log --numstat --pretty="%H" --author="Your Name" commit1..commit2 | awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d, -%d\n", plus, minus)}'

(you have to let git log print some identifying information about the commit; I arbitrarily chose the hash, then used awk to only pick out the lines with three fields, which are the ones with the stat information)