什么是git边界提交

Question

该git log命令有一个--boundary选项,导致程序

输出排除边界提交.

但什么是边界提交？我什么时候可以将它们包含在输出中？

Answer 1

边界提交是限制修订范围但不属于该范围的提交。例如，修订范围HEAD~3..HEAD由3个提交（HEAD~2，HEAD~1和HEAD）组成，并且该提交HEAD~3充当其边界提交。

更正式地说，git通过从指定的提交开始并通过父链接获取其他提交来处理修订范围。它停止于不符合选择标准的提交（因此应排除在外）-这些是边界提交。

插图：

$ mkdir test
$ cd test
$ git init
Initialized empty Git repository in ~/playground/git/test/.git/
$ touch a
$ git add a
$ for i in {1..5}; do echo $i >> a; git commit -m "Commit #$i" a; done
[master (root-commit) bf958f1] Commit #1
 1 file changed, 1 insertion(+)
 create mode 100644 a
[master 3721a8b] Commit #2
 1 file changed, 1 insertion(+)
[master d69efcc] Commit #3
 1 file changed, 1 insertion(+)
[master 72cd21d] Commit #4
 1 file changed, 1 insertion(+)
[master 17ae9c3] Commit #5
 1 file changed, 1 insertion(+)
$ git log --oneline
17ae9c3 Commit #5
72cd21d Commit #4
d69efcc Commit #3
3721a8b Commit #2
bf958f1 Commit #1
$ git log --oneline HEAD~3..
17ae9c3 Commit #5
72cd21d Commit #4
d69efcc Commit #3
$ git log --oneline HEAD~3.. --boundary
17ae9c3 Commit #5
72cd21d Commit #4
d69efcc Commit #3
- 3721a8b Commit #2     <-- This is the boundary commit HEAD~3 that would
                            not be included in the output had the '--boundary'
                            option NOT been provided