关于github:git-转移branch

本文记录一个比拟不罕用的 git 操作，场景为将一个库的某个分支，笼罩另一个库的某个分支。
. git_test, branch dev : github.com:xiangbin1997/git_test.git
. git_test1, branch dev : github.com:xiangbin1997/git_test1.git

用 git_test1，branch dev 替换 git_test, branch dev

clone git_test1 的 dev 分支

[postgres@hgcndn git_test1_dev]$ git clone -b dev git@github.com:xiangbin1997/git_test1.git
Cloning into 'git_test1'...
remote: Enumerating objects: 16, done.
remote: Counting objects: 100% (16/16), done.
remote: Compressing objects: 100% (12/12), done.
remote: Total 16 (delta 1), reused 11 (delta 0), pack-reused 0
Receiving objects: 100% (16/16), done.
Resolving deltas: 100% (1/1), done.
[postgres@hgcndn git_test1_dev]$ cd git_test1/

查看.git/config

[postgres@hgcndn git_test1]$ cat .git/config
[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true
[remote "origin"]
        url = git@github.com:xiangbin1997/git_test1.git
        fetch = +refs/heads/*:refs/remotes/origin/*
[branch "dev"]
        remote = origin
        merge = refs/heads/dev

删除 git_test1，dev 分支对应的 origin

[postgres@hgcndn git_test1]$ git remote rm origin
[postgres@hgcndn git_test1]$ cat .git/config
[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true
[branch "dev"]

批改 git_test1，dev 分支对应的 origin，指向 git_test

[postgres@hgcndn git_test1]$ git remote add origin git@github.com:xiangbin1997/git_test.git
[postgres@hgcndn git_test1]$ cat .git/config
[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true
[branch "dev"]
[remote "origin"]
        url = git@github.com:xiangbin1997/git_test.git
        fetch = +refs/heads/*:refs/remotes/origin/*

强制 push 到 git_test 的 dev 分支下

[postgres@hgcndn git_test1]$ git push origin dev --force
Counting objects: 16, done.
Compressing objects: 100% (11/11), done.
Writing objects: 100% (16/16), 1.97 KiB | 0 bytes/s, done.
Total 16 (delta 1), reused 13 (delta 1)
remote: Resolving deltas: 100% (1/1), done.
To git@github.com:xiangbin1997/git_test.git
 + 5a13464...418bf50 dev -> dev (forced update)

阐明，如果不强制 push 会报错

[postgres@hgcndn git_test1]$ git push origin dev
To git@github.com:xiangbin1997/git_test.git
 ! [rejected]        dev -> dev (fetch first)
error: failed to push some refs to 'git@github.com:xiangbin1997/git_test.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first merge the remote changes (e.g.,
hint: 'git pull') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

参考
git-move-repository