svn分支管理进行迭代开发

[root@ok svndata]# svn co svn://192.168.1.111/app01
＃ checkout项目到本机

开始规划我们的svn项目目录：

[root@ok svndata]# tree app01/　
app01/　＃项目根目录
├── branches　＃其他分支
│   ├── iterative-　＃迭代分支
│   ├── iterative--feature1　＃基于迭代分支的特性１分支
│   └── iterative--feature2    ＃基于迭代分支的特性２分支
├── tags
└── trunk　＃主干分支

 directories,  files

主干分支上创建第一个代码文件：

[root@ok app01]# svn mkdir trunk
A         trunk
[root@ok app01]# touch trunk/hello.py    
[root@ok app01]# svn add trunk/hello.py 
A         trunk/hello.py
[root@ok app01]# svn ci -m "init"
Adding         trunk
Adding         trunk/hello.py
Transmitting file data .
Committed revision 7.
[root@ok app01]# svn update
At revision 7.

首先创建分支目录：

[root@ok app01]# svn mkdir branches
A         branches
[root@ok app01]# svn ci -m "创建分支目录"
Adding         branches

Committed revision .
[root@ok app01]# svn update
At revision .

创建分支的方式一：

[root@ok app01]# svn cp trunk/ branches/iterative-
A         branches/iterative-
[root@ok app01]# svn ci -m "创建二期迭代分支"
Adding         branches/iterative-

Committed revision .

创建分分支的方式二：

[root@ok app01]# svn cp svn://192.168.1.111/app01/trunk \
> svn://192.168.1.111/app01/branches/iterative-2 \
> -m "创建二期迭代分支"

注意一定要svn update 否则可能会看不到更新log
[root@ok app01]# svn update

[root@ok app01]# svn log -v
------------------------------------------------------------------------
r11 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   A /branches/iterative- (from /trunk:)

创建二期迭代分支

基于迭代分支创建特性分支：
因为一次迭代开发可能包含很多新功能，面这些个功能可以由Ｎ个开发人员来并行开发。所以最佳方案是每个功能点再建一个分支出来，实现之后再合并回二期迭代分支。

[root@ok app01]# svn cp svn://192.168.1.111/app01/branches/iterative-2 \
> svn://192.168.1.111/app01/branches/iterative-2-feature-say-hi \
> -m "2期需求:say hi功能"

Committed revision .
[root@ok app01]# svn update
A    branches/iterative--feature-say-hi
A    branches/iterative--feature-say-hi/hello.py
Updated to revision .
[root@ok app01]# svn ci -m "2期需求:say hi功能"
[root@ok app01]# svn update
At revision .
[root@ok app01]# svn log -v
------------------------------------------------------------------------
r12 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   A /branches/iterative--feature-say-hi (from /branches/iterative-:)

2期需求:say hi功能
------------------------------------------------------------------------
r11 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   A /branches/iterative- (from /trunk:)

创建二期迭代分支
------------------------------------------------------------------------
r10 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   D /branches/iterative-

实现特性功能：

[root@ok app01]# echo "加入代码实现一些功能！！！">branches/iterative--feature-say-hi/hello.py
[root@ok app01]# svn commit -m "say hi 功能"
Sending        branches/iterative--feature-say-hi/hello.py
Transmitting file data .
Committed revision .
[root@ok app01]# svn update
At revision .
[root@ok app01]# svn log -v branches/iterative--feature-say-hi/hello.py
------------------------------------------------------------------------
r13 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   M /branches/iterative--feature-say-hi/hello.py

say hi 功能
------------------------------------------------------------------------
r12 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   A /branches/iterative--feature-say-hi (from /branches/iterative-:)

2期需求:say hi功能
------------------------------------------------------------------------
r11 | svnroot | -- :: + (Fri,  Aug ) |  line
Changed paths:
   A /branches/iterative- (from /trunk:)

创建二期迭代分支

合并回迭代分支

[root@ok app01]# svn mkdir branches/{iterative--feature1,iterative--feature2}
A         branches/iterative--feature1
A         branches/iterative--feature2
[root@ok app01]# svn ci -m "基于迭代分支的特性1和2分支"
Adding         branches/iterative--feature1
Adding         branches/iterative--feature2

Committed revision .

[root@ok app01]# cd branches/iterative--feature1/
[root@ok iterative--feature1]# svn merge svn://192.168.1.111/app01/branches/iterative-2
[root@ok iterative--feature1]# svn commit -m "合并迭代分支的修改"
Sending        iterative--feature1

Committed revision .
//自测，没问是后，合并回迭代分支
[root@ok branches]# cd iterative-
[root@ok iterative-]# svn merge --reintegrate svn://192.168.1.111/app01/branches/iterative-2-feature-say-hi
--- Merging differences between repository URLs into '.':
U    hello.py
[root@ok iterative-]# svn status
 M      .
M       hello.py
[root@ok iterative-]# svn diff

Property changes on: .
___________________________________________________________________
Added: svn:mergeinfo
   Merged /branches/iterative--feature-say-hi:r12-

Index: hello.py
===================================================================
--- hello.py    (revision )
+++ hello.py    (working copy)
@@ -, + @@
+加入代码实现一些功能！！！
[root@ok iterative-]# svn ci -m "合并回迭代分支"
Sending        iterative-
Sending        iterative-/hello.py
Transmitting file data .
Committed revision .

使用reintegrate合并后，迭代分支并没有保存特　性分支的提交历史（但是在branches目录下，能看到完整的提交历史）

迭代分支合并到 trunk 中

[root@ok trunk]# svn merge --reintegrate svn://192.168.1.111/app01/branches/iterative-2
--- Merging differences between repository URLs into '.':
U    hello.py
 U   .
[root@ok iterative-2]# svn diff

Property changes on: .
___________________________________________________________________
Added: svn:mergeinfo
   Merged /branches/iterative-2-feature-say-hi:r30-33

Index: hello.py
===================================================================
--- hello.py    (revision 31)
+++ hello.py    (working copy)
@@ -0,0 +1 @@
+进行了一些修改 实现了要求达到的功能！！
[root@ok trunk]# svn ci -m "合并到turnk"
Sending        trunk
Sending        trunk/hello.py
Transmitting file data .
Committed revision 36.
[root@ok trunk]# svn update
At revision 36.
[root@ok trunk]# svn log
------------------------------------------------------------------------
r36 | svnroot | 2016-08-26 19:16:30 +0800 (Fri, 26 Aug 2016) | 1 line

合并到turnk
------------------------------------------------------------------------
r27 | svnroot | 2016-08-26 18:40:48 +0800 (Fri, 26 Aug 2016) | 1 line

init
------------------------------------------------------------------------

删除特性分支

[root@ok iterative-]# svn rm svn://192.168.1.111/app01/branches/iterative-2-feature-say-hi -m ""

打一个tag:

[root@ok app01]# svn mkdir tags
A         tags
[root@ok app01]# svn ci -m ""
Adding         tags

Committed revision .
[root@ok app01]# svn copy svn://192.168.1.111/app01/trunk svn://192.168.1.111/app01/tags/1.0 -m "1.0 Released"

Committed revision .
[root@ok app01]# tree
.
├── branches
│   ├── iterative-
│   │   └── hello.py
│   ├── iterative--feature1
│   ├── iterative--feature2
│   └── iterative--feature-say-hi
│       └── hello.py
├── tags
│   └── 1.0
│       └── hello.py
└── trunk
    └── hello.py

 directories,  files
[root@ok app01]# cat tags/1.0/hello.py
进行了一些修改 实现了要求达到的功能！！

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

创建分支：

[root@ok branches]# svn cp -m "create branch" svn://192.168.1.111/app01/trunk svn://192.168.1.111/app01/branches/br_feature001

获得分支：

[root@ok branches]# svn co svn://192.168.1.111/app01/branches/br_feature001
A    br_feature001/hello.py
Checked out revision .

合并主干上的最新代码到分支上

[root@ok br_feature001]# svn merge svn://192.168.1.111/app01/trunk

测试如下：

[root@ok br_feature001]# cat hello.py
[root@ok br_feature001]# svn merge svn://192.168.1.111/app01/trunk
--- Merging r18 into '.':
U    hello.py
[root@ok br_feature001]# cat hello.py
12k

如果需要预览该刷新操做，可以使用svn mergeinfo:

[root@ok trunk]# svn mergeinfo svn://192.168.1.111/app01/trunk --show-revs eligible
r18

在分支上的开发结束，分支上的代码需要合并到主干，如下步骤:

[root@ok br_feature001]# cat hello.py
12k
[root@ok br_feature001]# svn status
 M      .
M       hello.py
#末把分支合并到主干之前，查看代码：
[root@ok br_feature001]# cat ../../trunk/hello.py
12k
[root@ok trunk]# cat hello.py
12k
更新主干内容！！！
[root@ok trunk]# svn merge --reintegrate svn://192.168.1.111/app01/branches/br_feature001

分支合并到主干中完成后应当删该分支，因为在svn中该分支已经不能进行刷新也不能合并到主干。

[root@ok trunk]# svn log
------------------------------------------------------------------------
r19 | svnroot | -- :: + (Fri,  Aug ) |  line

------------------------------------------------------------------------
r18 | svnroot | -- :: + (Fri,  Aug ) |  line

12k
------------------------------------------------------------------------
r7 | svnroot | -- :: + (Fri,  Aug ) |  line

init
------------------------------------------------------------------------
[root@ok trunk]# svn -r : merge svn://192.168.1.111/app01/trunk

建立tags

产品开发已经基本完成，并且通过很严格的测试，这时候我们就想发布给客户使用，发布为1.0版本

[root@ok app01]# svn copy svn://192.168.1.111/app01/trunk svn://192.168.1.111/app01/1.0 -m "Release 1.0"

Committed revision .

可以看出，就是简单的复制动做。