git合并分支两种方式：merge、rebase
这里主要介绍rebase操作
图解：
merge
rebase
实例搞起：
#初始化测试仓库 [email protected]:~$ mkdir gitrebasetest [email protected]:~$ cd gitrebasetest/ [email protected]:~/gitrebasetest$ git init Initialized empty Git repository in /home/terry/gitrebasetest/.git/ #master分支添加文件 [email protected]:~/gitrebasetest$ vim readme [email protected]:~/gitrebasetest$ git add . [email protected]:~/gitrebasetest$ git commit -m 'readme init' [master (root-commit) 8d4d518] readme init 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 readme #切换到dev分支并编辑readme文件 [email protected]:~/gitrebasetest$ git checkout -b dev Switched to a new branch 'dev' [email protected]:~/gitrebasetest$ vim readme [email protected]:~/gitrebasetest$ git add . [email protected]:~/gitrebasetest$ git commit -m 'dev add something' [dev 6df4740] dev add something 1 file changed, 1 insertion(+) #切换到master分支编辑readme文件 [email protected]:~/gitrebasetest$ git checkout master Switched to branch 'master' [email protected]:~/gitrebasetest$ vim readme [email protected]:~/gitrebasetest$ git add . [email protected]:~/gitrebasetest$ git commit -m 'master add something' [master c1fe7e4] master add something 1 file changed, 1 insertion(+) [email protected]:~/gitrebasetest$ vim Hello.java [email protected]:~/gitrebasetest$ git add . [email protected]:~/gitrebasetest$ git commit -m 'master add Hello.java' [master be18aa3] master add Hello.java 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 Hello.java #切换到dev分支编辑 [email protected]:~/gitrebasetest$ git checkout dev Switched to branch 'dev' [email protected]:~/gitrebasetest$ vim HelloDev.java [email protected]:~/gitrebasetest$ git add . [email protected]:~/gitrebasetest$ git commit -m 'dev add HelloDev.java' [dev 5f75a33] dev add HelloDev.java 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 HelloDev.java
开始rebase合并
[email protected]:~/gitrebasetest$ git rebase master First, rewinding head to replay your work on top of it... Applying: dev add something Using index info to reconstruct a base tree... M readme Falling back to patching base and 3-way merge... Auto-merging readme CONFLICT (content): Merge conflict in readme error: Failed to merge in the changes. Patch failed at 0001 dev add something Use 'git am --show-current-patch' to see the failed patch Resolve all conflicts manually, mark them as resolved with "git add/rm <conflicted_files>", then run "git rebase --continue". You can instead skip this commit: run "git rebase --skip". To abort and get back to the state before "git rebase", run "git rebase --abort". #查看状态 te[email protected]:~/gitrebasetest$ git status rebase in progress; onto be18aa3 You are currently rebasing branch 'dev' on 'be18aa3'. (fix conflicts and then run "git rebase --continue") (use "git rebase --skip" to skip this patch) (use "git rebase --abort" to check out the original branch) Unmerged paths: (use "git reset HEAD <file>..." to unstage) (use "git add <file>..." to mark resolution) both modified: readme no changes added to commit (use "git add" and/or "git commit -a") #编辑readme [email protected]:~/gitrebasetest$ vim readme #继续rebase [email protected]:~/gitrebasetest$ git add readme [email protected]:~/gitrebasetest$ git rebase --continue Applying: dev add something Applying: dev add HelloDev.java #查看分支情况 [email protected]:~/gitrebasetest$ git log commit 2f4cd0d888864b7a8b838703a5dadbd1e3394abd (HEAD -> dev) Author: terry <[email protected]> Date: Sun May 12 10:26:18 2019 +0800 dev add HelloDev.java commit f09b5a8cb1fd30a30aa9ff1e0233be71d4f41811 Author: terry <[email protected]> Date: Sun May 12 10:22:58 2019 +0800 dev add something commit be18aa3a371d15b6a5e24350edb619c8fecfdaf0 (master) Author: terry <[email protected]> Date: Sun May 12 10:25:05 2019 +0800 master add Hello.java commit c1fe7e4bdc30777bdb707bb0fe480367f1540f37 Author: terry <[email protected]> Date: Sun May 12 10:24:06 2019 +0800 master add something commit 8d4d51804d56c8021299e5b539b83deaed8f5699 Author: terry <[email protected]> Date: Sun May 12 10:21:31 2019 +0800 readme init #切换到master分支merge dev [email protected]:~/gitrebasetest$ git checkout master Switched to branch 'master' [email protected]:~/gitrebasetest$ git merge dev Updating be18aa3..2f4cd0d Fast-forward HelloDev.java | 0 readme | 1 + 2 files changed, 1 insertion(+) create mode 100644 HelloDev.java
到此rebase操作结束
总结：
git rebase过程相比较git merge合并整合得到的结果没有任何区别，但是通过git rebase衍合能产生一个更为整洁的提交历史。
如果观察一个衍合过的分支的历史提交记录，看起来会更清楚：仿佛所有修改都是在一根线上先后完成的，尽管实际上它们原来是同时并行发生的。
一般我们使用衍合的目的，是想要得到一个能在远程分支上干净应用的补丁，比如某个项目你不是维护者，但是想帮点忙，最好使用衍合处理。
先在自己的一个分支进行开发，当准备向主项目提交补丁的时候，根据最新的orgin/master进行一次衍合操作然后再提交，这样维护者就不需要任何整合工作。
实际为：把解决分支补丁同最新主干代码之间的冲突的责任，划转给由提交补丁的人来解决。
作为维护项目的人只需要根据你提供的仓库地址做一次快进合并，或者直接采纳你提交的补丁。
衍合的风险，请务必遵循如下准则：
一旦分支中的提交对象发布到公共仓库，就千万不要对该分支进行衍合操作。
转载请注明：Terry's blog » git rebase使用详解