使用Git与GitHub协同开发并搭建私有GitLab代码托管服务器

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目录

[TOC]

Git的发展史

Linus在1991年创建了开源的Linux，从此全世界的工程师参与了Linux的开发，期初Linus是通过手动diff的方式进行代码审核和合并的，后来BitKeeper的东家BitMover公司出于人道主义精神，授权Linux社区免费使用这个版本控制系统。安定团结的大好局面在2005年就被打破了，原因是Linux社区牛人聚集，不免沾染了一些梁山好汉的江湖习气。开发Samba的Andrew试图破解BitKeeper的协议（这么干的其实也不只他一个），被BitMover公司发现了（监控工作做得不错！），于是BitMover公司怒了，要收回Linux社区的免费使用权。Linus花了两周时间自己用C写了一个分布式版本控制系统，这就是Git！一个月之内，Linux系统的源码已经由Git管理了！如果当时BitMover公司专门为Linux发布一个社区版，也许这家公司也就名垂青史了，可是当时这家公司思想境界没那么高而且Linus也那么牛！

Ubuntu安装Git

[email protected]:~$ sudo apt install git -y

Windows安装Git

基本就是一路Next最后Finsh。

同一团队协作开发

假定存在用户A和用户B，用户A创建了一个远程仓库，然后远程仓库clone到本地，进行开发完成以后push到远程仓库。同时用户B也在开发这个项目，首先用户B将远程仓库clone到本地进行开发，完成后push到远程仓库，同时用户A再pull远程仓库代码同步项目。

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跨团队协作开发

假定存在两个开发团队A和B，开发团队A的每个成员都拥有一个本地版本库，但是需要开发团队B协助开发，那么开发团队会先fork一个远程仓库，接着开发团队B的成员分别clone副本远程仓库到本地进行开发，然后push到副本远程仓库。完成后，开发团队B向开发团队A发出一个pull request请求，项目通过审核之后开发团队A再merge副本库到原始远程库，完成功能合并。
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使用Git命令行

  • 使用git init命令初始化一个新的项目

    [email protected]:~$ git init StudyGit
Initialized empty Git repository in /home/niko/StudyGit/.git/

  • 使用git init命令开始管理一个现有的项目

    [email protected]:~$ mkdir StydyGit
[email protected]:~$ cd StydyGit/
[email protected]:~/StydyGit$ git init
Initialized empty Git repository in /home/niko/StydyGit/.git/

  • 使用Git管理一个项目的时候会创建一下文件和目录

    [email protected]:~$ tree StudyGit -a
StudyGit
└── .git
  ├── HEAD
  ├── branches
  ├── config
  ├── description
  ├── hooks
  │?? ├── applypatch-msg.sample
  │?? ├── commit-msg.sample
  │?? ├── fsmonitor-watchman.sample
  │?? ├── post-update.sample
  │?? ├── pre-applypatch.sample
  │?? ├── pre-commit.sample
  │?? ├── pre-push.sample
  │?? ├── pre-rebase.sample
  │?? ├── pre-receive.sample
  │?? ├── prepare-commit-msg.sample
  │?? └── update.sample
  ├── info
  │?? └── exclude
  ├── objects
  │?? ├── info
  │?? └── pack
  └── refs
      ├── heads
      └── tags

10 directories, 15 files

在Git中有4个区，分别是工作区、暂存区、本地库、远程库。我们项目开发就是在工作区工作，然后使用git add命令将工作区的代码提交到暂存区，使用git commit命令将暂存区的文件提交到本地库。Git的有一个代码托管中心是GitHub，同样国内还有Google Code，码云等。

  • 设置Git签名

    项目级别（本地）

    [email protected]:~/StydyGit$ git config user.name niko
[email protected]:~/StydyGit$ git config user.email [email protected]

    系统级别（全局）

    [email protected]:~/StydyGit$ git config --global user.name xvge
[email protected]:~/StydyGit$ git config --global user.email [email protected]

    签名优先级

    就近原则：项目优先级高于系统优先级

    项目级别的配置信息存放到项目目录的.git/config文件中：

    [email protected]:~/StydyGit$ cat .git/config
    [core]
      repositoryformatversion = 0
      filemode = true
      bare = false
      logallrefupdates = true
[user]
      name = niko
      email = [email protected]

    项目级别的配置信息存放到系统用户目录的.gitconfig文件中：

    [email protected]:~/StydyGit$ cat ~/.gitconfig
    [user]
      name = xvge
      email = [email protected]

  • 查看当前工作区的状态（git status）

    [email protected]:~/StydyGit$ git status
On branch master   # 当前所处的分支

No commits yet

nothing to commit (create/copy files and use "git add" to track)

    当创建一个新文件的时候，这个新的文件处于未被跟踪的状态：

    [email protected]:~/StydyGit$ echo "Hello, Git." > file.txt  # 创建一个文件
[email protected]:~/StydyGit$ git status
On branch master

No commits yet

Untracked files:   # 列出未被追踪的文件
(use "git add <file>..." to include in what will be committed)

      file.txt

nothing added to commit but untracked files present (use "git add" to track)

  • 将工作区的文件提交到暂存区，使得Git可以跟踪新文件（git add）

    [email protected]:~/StydyGit$ git add .
[email protected]:~/StydyGit$ git status
On branch master

No commits yet

Changes to be committed:    # 列出更改的文件
(use "git rm --cached <file>..." to unstage)

      new file:   file.txt

  • 将暂存区的文件提交到本地库（git commit）

    [email protected]:~/StydyGit$ git commit -m "add file.txt"
[master (root-commit) 5f9adfe] add file.txt
 1 file changed, 1 insertion(+)
 create mode 100644 file.txt

  • 查看提交日志（git log）

    [email protected]:~/StydyGit$ git log
commit e6442a41c339e0fd6d01656cbea24775471ee1ed (HEAD -> master)  # HEAD表示当前版本
Author: niko <[email protected]>
Date:   Mon Sep 24 12:34:38 2018 +0800

    modifiy file.txt  # 提交的注释信息

commit 5f9adfeade857255ef647f855899965274a5fe95   # 40为16进制SHA-256值
Author: niko <[email protected]>
Date:   Mon Sep 24 12:16:20 2018 +0800

    add file.txt

  • 查看提交日志（git log）

    多次修改后的git log

    [email protected]:~/StydyGit$ git log
commit b4a54420dcea8d480b80797e032d8ed74b430a97 (HEAD -> master)
Author: niko <[email protected]>
Date:   Mon Sep 24 12:40:27 2018 +0800

    modifiy file.txt

commit 17acb2424f04c7ec0298e0c59039d19bce8369b6
Author: niko <[email protected]>
Date:   Mon Sep 24 12:39:08 2018 +0800

    add file3.txt

commit 80cbf7f5c44e0507439bd97a8976d28b746f4f45
Author: niko <[email protected]>
Date:   Mon Sep 24 12:38:26 2018 +0800

    add file2.txt

commit e6442a41c339e0fd6d01656cbea24775471ee1ed
Author: niko <[email protected]>
Date:   Mon Sep 24 12:34:38 2018 +0800

    modifiy file.txt

commit 5f9adfeade857255ef647f855899965274a5fe95
Author: niko <[email protected]>
Date:   Mon Sep 24 12:16:20 2018 +0800

    add file.txt

    使用git log --pretty=oneline

    [email protected]:~/StydyGit$ git log --pretty=oneline
b4a54420dcea8d480b80797e032d8ed74b430a97 (HEAD -> master) modifiy file.txt
17acb2424f04c7ec0298e0c59039d19bce8369b6 add file3.txt
80cbf7f5c44e0507439bd97a8976d28b746f4f45 add file2.txt
e6442a41c339e0fd6d01656cbea24775471ee1ed modifiy file.txt
5f9adfeade857255ef647f855899965274a5fe95 add file.txt

    使用git log --oneline

    [email protected]:~/StydyGit$ git log --oneline
b4a5442 (HEAD -> master) modifiy file.txt
17acb24 add file3.txt
80cbf7f add file2.txt
e6442a4 modifiy file.txt
5f9adfe add file.txt

    使用git reflog

    [email protected]:~/StydyGit$ git reflog
b4a5442 (HEAD -> master) [email protected]{0}: commit: modifiy file.txt
17acb24 [email protected]{1}: commit: add file3.txt
80cbf7f [email protected]{2}: commit: add file2.txt
e6442a4 [email protected]{3}: commit: modifiy file.txt
5f9adfe [email protected]{4}: commit (initial): add file.txt

  • 版本回退（git reset）

    参数：

    git reset --soft 回退本地库
    git reset --mixed 默认，回退暂存区、本地库
    git reset --hard 回退暂存区、工作区、本地库

    [email protected]:~/StydyGit$ git reset 80cbf7f

    git reset --soft图示

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git reset --mixed图示

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git reset --hard图示

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使用git diff --staged比较工作区与暂存区的不同。

使用git diff --cached比较暂存区与本地库的不同。

分支管理

分支可以并行推进项目的开发，开发的某一个功能如果失败不会影响项目整体。

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  • 查看分支（git branch -v）

    [email protected]:~/StydyGit$ git branch -v
* master bcf8ce2 first reset

  • 创建分支（git branch branchName）

    [email protected]:~/StydyGit$ git branch hot_fix

  • 切换分支（git checkout branchName）

    [email protected]:~/StydyGit$ git checkout hot_fix
Switched to branch ‘hot_fix‘
[email protected]:~/StydyGit$ git branch -v   # 星号所在分支就是当前分支
* hot_fix bcf8ce2 first reset
master  bcf8ce2 first reset

  • 合并分支（git merge branchName）

    [email protected]ok:~/StydyGit$ vim file3.txt   # 修改文件
[email protected]:~/StydyGit$ git status      # 查看分支状态
On branch hot_fix
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)

      modified:   file3.txt

no changes added to commit (use "git add" and/or "git commit -a")
[email protected]:~/StydyGit$ git add .       # 添加到当前分支的跟踪状态
[email protected]:~/StydyGit$ git commit -m "fix bug by xvge"   # 提交代码
[hot_fix 40376b9] fix bug by xvge
1 file changed, 1 insertion(+)
[email protected]:~/StydyGit$ git checkout master  # 切换到主分支
Switched to branch ‘master‘
[email protected]:~/StydyGit$ git merge hot_fix    # 将hot_fix合并到master
Updating bcf8ce2..40376b9
Fast-forward
file3.txt | 1 +
1 file changed, 1 insertion(+)
[email protected]:~/StydyGit$ git stataus         # 查看主分支状态
git: ‘stataus‘ is not a git command. See ‘git --help‘.

The most similar command is
      status
[email protected]:~/StydyGit$ git status
On branch master
nothing to commit, working tree clean
[email protected]:~/StydyGit$ git reflog  # 产生几个新版本
40376b9 (HEAD -> master, hot_fix) [email protected]{0}: merge hot_fix: Fast-forward
bcf8ce2 [email protected]{1}: checkout: moving from hot_fix to master
40376b9 (HEAD -> master, hot_fix) [email protected]{2}: commit: fix bug by xvge
bcf8ce2 [email protected]{3}: checkout: moving from master to hot_fix
bcf8ce2 [email protected]{4}: reset: moving to bcf8ce2
db6e563 [email protected]{5}: commit: del file2.txt
bcf8ce2 [email protected]{6}: commit: first reset
80cbf7f [email protected]{7}: reset: moving to 80cbf7f
b4a5442 [email protected]{8}: commit: modifiy file.txt
17acb24 [email protected]{9}: commit: add file3.txt
80cbf7f [email protected]{10}: commit: add file2.txt
e6442a4 [email protected]{11}: commit: modifiy file.txt
5f9adfe [email protected]{12}: commit (initial): add file.txt
    • 合并代码时产生了冲突
    # 修改master分支代码
[email protected]:~/StydyGit$ git branch -v
hot_fix 40376b9 fix bug by xvge
* master  40376b9 fix bug by xvge
[email protected]:~/StydyGit$ vim file3.txt
[email protected]:~/StydyGit$ git add .
[email protected]:~/StydyGit$ git commit -m "add festure by master"
[master cbd7ce1] add festure by master
1 file changed, 1 insertion(+)
# 修改hot_fix分支代码
[email protected]:~/StydyGit$ git branch -v
* hot_fix 40376b9 fix bug by xvge
master  40376b9 fix bug by xvge
[email protected]:~/StydyGit$ vim file3.txt
[email protected]:~/StydyGit$ git add .
[email protected]:~/StydyGit$ git commit -m "add feature by fix"
[hot_fix 6cceae3] add feature by fix
1 file changed, 1 insertion(+)
# 将master合并到hot_fix上
[email protected]:~/StydyGit$ git branch -v
* hot_fix 6cceae3 add feature by fix
master  cbd7ce1 add festure by master
[email protected]:~/StydyGit$ git merge master
Auto-merging file3.txt
CONFLICT (content): Merge conflict in file3.txt
Automatic merge failed; fix conflicts and then commit the result.
# 解决冲突
[email protected]:~/StydyGit$ vim file3.txt
Hi, FullStackDev.
fix this bug by xvge.
<<<<<<< HEAD
add festure by fix.
=======
add feature by master.
>>>>>>> master
# 提×××并
[email protected]:~/StydyGit$ git add .
[email protected]:~/StydyGit$ git commit -m "merge code by conflict"
[hot_fix 088f6c5] merge code by conflict

Git与GitHub远程仓库交互

  • 创建远程仓库github.com，如果勾选Initialize this repository with a README选项可能首次推送失败。

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  • 将GitHub地址保存到本地

    [email protected]:~/StydyGit$ git remote add origin https://github.com/xvGe/StudyGit.git

  • 查看本地保存了什么地址

    [email protected]:~/StydyGit$ git remote -v
origin  https://github.com/xvGe/StudyGit.git (fetch)
origin  https://github.com/xvGe/StudyGit.git (push)

  • 将本地库推送到远程库

    [email protected]:~/StydyGit$ git push origin master
Username for ‘https://github.com‘: xvGe
Password for ‘https://[email protected]‘:
Counting objects: 19, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (11/11), done.
Writing objects: 100% (19/19), 1.44 KiB | 52.00 KiB/s, done.
Total 19 (delta 2), reused 0 (delta 0)
remote: Resolving deltas: 100% (2/2), done.
remote:
remote: Create a pull request for ‘master‘ on GitHub by visiting:
remote:      https://github.com/xvGe/StudyGit/pull/new/master
remote:
To https://github.com/xvGe/StudyGit.git
* [new branch]      master -> master

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  • 克隆远程库（git clone）
[email protected]:~/StydyGit$ cd ../
[email protected]:~$ rm -rf StydyGit/
[email protected]:~$ git clone https://github.com/xvGe/StudyGit.git
Cloning into ‘StudyGit‘...
remote: Counting objects: 19, done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 19 (delta 2), reused 19 (delta 2), pack-reused 0
Unpacking objects: 100% (19/19), done.
  • 拉取远程库（git pull和git fetch）
[email protected]:~$ git init StudyGit2   # 创建新项目
Initialized empty Git repository in /home/niko/StudyGit2/.git/
[email protected]:~$ cd StudyGit2/   # 进入项目目录
[email protected]:~/StudyGit2$ git remote add origin https://github.com/xvGe/StudyGit.git#添加地址
[email protected]:~/StudyGit2$ git fetch origin master  # 拉取项目
remote: Counting objects: 19, done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 19 (delta 2), reused 19 (delta 2), pack-reused 0
Unpacking objects: 100% (19/19), done.
From https://github.com/xvGe/StudyGit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
[email protected]:~/StudyGit2$ git branch -a    # 查看所有分支
  remotes/origin/master
[email protected]:~/StudyGit2$ git branch -r    # 查看远程分支
  origin/master 
[email protected]:~/StudyGit2$ git merge origin/master   # 合并分支
[email protected]:~/StudyGit2$ ls
file.txt  file2.txt  file3.txt
[email protected]:~/StudyGit2$ cd ../    # 返回上层
[email protected]:~$ git init StudyGit3  # 初始化一个项目
Initialized empty Git repository in /home/niko/StudyGit3/.git/
[email protected]:~$ cd StudyGit3/       # 进入项目目录
[email protected]:~/StudyGit3$ git pull https://github.com/xvGe/StudyGit.git   # 拉取项目
remote: Counting objects: 19, done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 19 (delta 2), reused 19 (delta 2), pack-reused 0
Unpacking objects: 100% (19/19), done.
From https://github.com/xvGe/StudyGit
 * branch            HEAD       -> FETCH_HEAD
[email protected]:~/StudyGit3$ ls
file.txt  file2.txt  file3.txt

git fetch和git pull的区别是，前者会创建新分支，需要合并操作，但是更加安全；后者直接修改本地代码。

跨团队协作

  • 远程克隆仓库

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  • 团队拉取远程仓库修改并推送

    [email protected]:~$ git init StudyGitHub
Initialized empty Git repository in /home/niko/StudyGitHub/.git/
[email protected]:~$ cd StudyGitHub/
[email protected]:~/StudyGitHub$ git pull https://github.com/xv-niko/StudyGit.git
[email protected]:~/StudyGitHub$ git remote add origin https://github.com/xv-niko/StudyGit.git
[email protected]:~/StudyGitHub$ ls
file.txt  file2.txt  file3.txt
[email protected]:~/StudyGitHub$ echo "Desgin by B" >> file3.txt
[email protected]:~/StudyGitHub$ git add .
[email protected]:~/StudyGitHub$ git commit -m "add code"
[master 09003b9] add code
1 file changed, 1 insertion(+)
[email protected]:~/StudyGitHub$ git push origin master
Username for ‘https://github.com‘: xv-niko
Password for ‘https://[email protected]‘:
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 274 bytes | 68.00 KiB/s, done.
Total 3 (delta 2), reused 0 (delta 0)
remote: Resolving deltas: 100% (2/2), completed with 2 local objects.
To https://github.com/xv-niko/StudyGit.git
 cbd7ce1..09003b9  master -> master
  • 发起pull requests

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  • 项目所有者团队查看请求

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  • 合并代码

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  • 所有者团队合并到本地

    [email protected]:~/StudyGitHub$ cd ../StudyGit
[email protected]:~/StudyGit$ git pull origin master
remote: Counting objects: 4, done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 4 (delta 2), reused 3 (delta 2), pack-reused 0
Unpacking objects: 100% (4/4), done.
From https://github.com/xvGe/StudyGit
* branch            master     -> FETCH_HEAD
 cbd7ce1..0ca0905  master     -> origin/master
Updating cbd7ce1..0ca0905
Fast-forward
file3.txt | 1 +
1 file changed, 1 insertion(+)
[email protected]:~/StudyGit$ cat file3.txt
Hi, FullStackDev.
fix this bug by xvge.
add feature by master.
Desgin by B

Git工作流

  • 集中式工作流
  • Git Flow（常用）

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  • Forking工作流

部署GitLab代码托管服务器

yum clean all && yum repolist all
yum install -y curl policycoreutils-python openssh-server
systemctl enable sshd
systemctl start sshd
firewall-cmd --permanent --add-service=http  # 如果开启了防火墙执行
systemctl reload firewalld                   # 如果开启了防火墙执行
yum install postfix -y
systemctl enable postfix
systemctl start postfix
curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | bash
EXTERNAL_URL="http://gitlab.example.com" yum install -y gitlab-ce
gitlab-ctl reconfigure     # 配置服务器
gitlab-ctl start           # 启动服务器

访问服务器地址即可，GitLab服务器搭建指南：https://about.gitlab.com/installation/

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