svn - 合并后如何防止在 Subversion 中丢失提交历史记录？

Question

设置简单的 SVN 项目布局:

svnadmin create proj-repo
svn co file://$PWD/proj-repo proj
cd proj
mkdir branches trunk tags features
svn add *
svn ci -m 'Basic SVN project setup.'

启动项目:

cd trunk
svn add README
svn ci -m 'Add README'

实现功能:

svn cp . ^/features/linux-port
cd ../../
svn co file://$PWD/proj-repo/features/linux-port proj-linux-port
cd proj-linux-port
svn ci -m "Implement feature 1."
svn ci -m "Implement feature 2."
svn ci -m 'Add last feature.'

在主开发分支做工作:

svn switch ^/trunk
svn ci -m "Fix."

准备好新功能:

svn merge --reintegrate ^/features/linux-port
svn ci -m 'Integrate features.'

但是现在:

svn log .

------------------------------------------------------------------------
r9 | user | 2013-07-30 18:38:01 +0300 (Tue, 30 Jul 2013) | 1 line

Integrate features.
------------------------------------------------------------------------
r8 | user | 2013-07-30 18:36:53 +0300 (Tue, 30 Jul 2013) | 1 line

Fix.

和:

svn diff -r9

Index: README
===================================================================
--- README      (revision 8)
+++ README      (revision 9)
@@ -1,2 +1,5 @@
 hello fix

+feature 1
+
+feature 2
+
+final feature

Property changes on: .
___________________________________________________________________
Added: svn:mergeinfo
   Merged /features/linux-port:r2-8

因此，我丢失了来自 /features/linux-port:r2-8 的每个单独功能的后续提交。 .是否可以在不切换到 HG/Git/Bzr/Fossil 的情况下保存它们？

更新 我们通常会在解释编码决策的地方编写好的提交消息并放置指向 BTS 的链接。 SVN 删除了这些信息，我们很伤心。

所以我们需要使用旧学校 Changelog ?

Answer 1

哦，我只是仔细阅读:

svn help log

  -g [--use-merge-history] : use/display additional information from merge

使用常用的 SVN 工具可以获得完整的历史记录。

要查看实际差异，请使用帽子路径语法:

svn diff -c 4 ^/

我还在官方文档中找到了适当的部分:

http://svnbook.red-bean.com/en/1.7/svn.branchmerge.advanced.html

The svn blame command also takes the --use-merge-history (-g) option.
If this option is neglected, somebody looking at a line-by-line annotation
of file may get the mistaken impression that you were responsible for the lines
that fixed a certain error