SVN - 解决冲突

Tom 决定为他们的项目添加一个 README 文件。 因此,他创建了 README 文件并将 TODO 列表添加到其中。 添加后,文件存储库为修订版 6。

[tom@CentOS trunk]$ cat README 
/* TODO: Add contents in README file */

[tom@CentOS trunk]$ svn status
?       README

[tom@CentOS trunk]$ svn add README 
A         README

[tom@CentOS trunk]$ svn commit -m "Added README file. Will update it's content in future."
Adding         trunk/README
Transmitting file data .
Committed revision 6. 

Jerry 检出最新版本的代码 6。他立即开始工作。 几个小时后,Tom 更新 README 文件并提交他的更改。 修改后的 README 将如下所示。

[tom@CentOS trunk]$ cat README 
* Supported operations:

1) Accept input
2) Display array elements

[tom@CentOS trunk]$ svn status
M       README

[tom@CentOS trunk]$ svn commit -m "Added supported operation in README"
Sending        trunk/README
Transmitting file data .
Committed revision 7.

现在,存储库处于修订版 7 并且 Jerry 的 工作副本已过时。 Jerry 还会更新 README 文件并尝试提交他的更改。

Jerry 的 README 文件如下所示。

[jerry@CentOS trunk]$ cat README 
* File list

1) array.c	Implementation of array operation.
2) README	Instructions for user.

[jerry@CentOS trunk]$ svn status
M       README

[jerry@CentOS trunk]$ svn commit -m "Updated README"
Sending        trunk/README
svn: Commit failed (details follow):
svn: File or directory 'README' is out of date; try updating
svn: resource out of date; try updating

第 1 步:查看冲突

Subversion 检测到自上次更新后 README 文件发生了变化。 因此,Jerry 必须更新他的工作副本。

[jerry@CentOS trunk]$ svn up
Conflict discovered in 'README'.
Select: (p) postpone, (df) diff-full, (e) edit,
        (mc) mine-conflict, (tc) theirs-conflict,
        (s) show all options:

Subversion 抱怨与 README 文件有冲突,Subversion 不知道如何解决这个问题。 所以 Jerry 选择 df 选项来检查冲突。

[jerry@CentOS trunk]$ svn up
Conflict discovered in 'README'.
Select: (p) postpone, (df) diff-full, (e) edit,
        (mc) mine-conflict, (tc) theirs-conflict,
        (s) show all options: df
--- .svn/text-base/README.svn-base	Sat Aug 24 18:07:13 2013
+++ .svn/tmp/README.tmp	Sat Aug 24 18:13:03 2013
@@ -1 +1,11 @@
-/* TODO: Add contents in README file */
+<<<<<<< .mine
+* File list
+
+1) array.c	Implementation of array operation.
+2) README	Instructions for user.
+=======
+* Supported operations:
+
+1) Accept input
+2) Display array elements
+>>>>>>> .r7
Select: (p) postpone, (df) diff-full, (e) edit, (r) resolved,
        (mc) mine-conflict, (tc) theirs-conflict,
        (s) show all options:

第 2 步:推迟冲突

接下来Jerry选择postpone(p)选项,这样他就可以解决冲突。

Select: (p) postpone, (df) diff-full, (e) edit, (r) resolved,
        (mc) mine-conflict, (tc) theirs-conflict,
        (s) show all options: p
C    README
Updated to revision 7.
Summary of conflicts:
  Text conflicts: 1

在文本编辑器中打开 README 后,他意识到 Subversion 包含了 Tom 的 代码和他的带有冲突标记的代码。

[jerry@CentOS trunk]$ cat README
<<<<<<< .min
* File list

1) array.c	Implementation of array operation.
2) README	Instructions for user.
=======
* Supported operations:

1) Accept input
2) Display array elements
>>>>>>> .r7

Jerry 想要 Tom 的 和他的一样,所以他只是删除了包含冲突标记的行。

因此,修改后的 README 将如下所示。

[jerry@CentOS trunk]$ cat README
* File list

1) array.c	Implementation of array operation.
2) README	Instructions for user.

* Supported operations:

1) Accept input
2) Display array elements

Jerry 解决了冲突,他重试了提交。

[jerry@CentOS trunk]$ svn commit -m "Updated README"
svn: Commit failed (details follow):
svn: Aborting commit: '/home/jerry/project_repo/trunk/README' remains in conflict
 
[jerry@CentOS trunk]$ svn status
?       README.r6
?       README.r7
?       README.mine
C       README

第 3 步:解决冲突

在上面的提交中,字母C表示README文件有冲突。Jerry 解决了冲突,但没有告诉 Subversion 他已经解决了冲突。 他使用 resolve 命令通知 Subversion 冲突解决。

[jerry@CentOS trunk]$ svn resolve --accept=working README
Resolved conflicted state of 'README'

[jerry@CentOS trunk]$ svn status
M       README

[jerry@CentOS trunk]$ svn commit -m "Updated README"
Sending        trunk/README
Transmitting file data .
Committed revision 8.