人生不如意之事十之八九,合并分支往往也不是一帆风顺的。
准备新的feature1
分支,继续我们的新分支开发:
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$ git checkout -b feature1 Switched to a new branch 'feature1' |
修改readme.txt最后一行,改为:
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Creating a new branch is quick AND simple. |
在feature1
分支上提交:
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$ git add readme.txt $ git commit -m "AND simple" [feature1 75a857c] AND simple 1 file changed, 1 insertion(+), 1 deletion(-) |
切换到master
分支:
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$ git checkout master Switched to branch 'master' Your branch is ahead of 'origin/master' by 1 commit. |
Git还会自动提示我们当前master
分支比远程的master
分支要超前1个提交。
在master
分支上把readme.txt文件的最后一行改为:
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Creating a new branch is quick & simple. |
提交:
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$ git add readme.txt $ git commit -m "& simple" [master 400b400] & simple 1 file changed, 1 insertion(+), 1 deletion(-) |
现在,master分支和feature1分支各自都分别有新的提交,变成了这样:
这种情况下,Git无法执行“快速合并”,只能试图把各自的修改合并起来,但这种合并就可能会有冲突,我们试试看:
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$ git merge feature1 Auto-merging readme.txt CONFLICT (content): Merge conflict in readme.txt Automatic merge failed; fix conflicts and then commit the result. |
果然冲突了!Git告诉我们,readme.txt文件存在冲突,必须手动解决冲突后再提交。git status也可以告诉我们冲突的文件:
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$ git status # On branch master # Your branch is ahead of 'origin/master' by 2 commits. # # Unmerged paths: # (use "git add/rm <file>..." as appropriate to mark resolution) # # both modified: readme.txt # no changes added to commit (use "git add" and/or "git commit -a") |
我们可以直接查看readme.txt的内容:
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Git is a distributed version control system. Git is free software distributed under the GPL. Git has a mutable index called stage. Git tracks changes of files. <<<<<<< HEAD Creating a new branch is quick & simple. ======= Creating a new branch is quick AND simple. >>>>>>> feature1 |
Git用<<<<<<<
,=======
,>>>>>>>
标记出不同分支的内容,我们修改如下后保存:
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Creating a new branch is quick and simple. |
再提交:
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$ git add readme.txt $ git commit -m "conflict fixed" [master 59bc1cb] conflict fixed |
现在,master
分支和feature1
分支变成了下图所示:
用带参数的git log
也可以看到分支的合并情况:
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$ git log --graph --pretty=oneline --abbrev-commit * 59bc1cb conflict fixed |\ | * 75a857c AND simple * | 400b400 & simple |/ * fec145a branch test ... |
最后,删除feature1
分支:
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$ git branch -d feature1 Deleted branch feature1 (was 75a857c). |
工作完成。