利用git提交代码

一、首先需要下载git

  查看电脑是否安装git,打开终端,输入git,回车如果输出如下,则代表已安装了git

利用git提交代码

如果未安装,则会输出:

利用git提交代码

按照提示输入:sudo apt-get install git即可安装!!或者到此处下载:git下载, pkg包下载完成,双击安装。

输入命令:git --version 可查看当前git版本

利用git提交代码

二.安装后需要一些配置

 配置用户名和邮箱:

$ git config --global user.name "Your Name"
$ git config --global user.email "email@example.com"

使用 --global 修饰后设置的全局的用户,如果设置单个项目的用户,可cd到项目根目录下,执行如下命令:

$ git config user.name "Your Name"
$ git config user.email "email@example.com"

使用命令:git config --list 可查看当前用户信息以及其他的一些信息

$ git config --list
core.excludesfile=/Users/mac/.gitignore_global
difftool.sourcetree.cmd=opendiff "$LOCAL" "$REMOTE"
difftool.sourcetree.path=
mergetool.sourcetree.cmd=/Applications/SourceTree.app/Contents/Resources/opendiff-w.sh "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$MERGED"
mergetool.sourcetree.trustexitcode=true
http.postbuffer=
https.postbuffer=
user.email=你的邮箱@qq.com
user.name=你的用户名
macdeMacBook-Pro:~ Artron_LQQ$

三.建立本地git仓库

1. cd到你的项目目录

$ cd /Users/cjk/Desktop/myShop

2. 然后,输入git命令:

$ git init  

输出如下:

$ git init
Initialized empty Git repository in /Users/cjk/Desktop/GitTest/.git/

创建了一个空的本地仓库.

3.将项目的所有文件添加到缓存中:

$ git add .  

git add . (注意,后面有个点)表示添加目录下所有文件到缓存库,如果只添加某个文件,只需把 . 换成你要添加的文件名即可;

4.将缓存中的文件Commit到git库

git commit -m "添加你的注释,一般是一些更改信息"

下面是第一次提交时的输出:

$ git commit -m "添加项目"
[master (root-commit) 3102a38] 添加项目
files changed, insertions(+)
create mode GitTest.xcodeproj/project.pbxproj
create mode GitTest.xcodeproj/project.xcworkspace/contents.xcworkspacedata
create mode GitTest.xcodeproj/project.xcworkspace/xcuserdata/Artron_LQQ.xcuserdatad/UserInterfaceState.xcuserstate
create mode GitTest.xcodeproj/xcuserdata/Artron_LQQ.xcuserdatad/xcschemes/GitTest.xcscheme
create mode GitTest.xcodeproj/xcuserdata/Artron_LQQ.xcuserdatad/xcschemes/xcschememanagement.plist
create mode GitTest/AppDelegate.h
create mode GitTest/AppDelegate.m
create mode GitTest/Assets.xcassets/AppIcon.appiconset/Contents.json
create mode GitTest/Base.lproj/LaunchScreen.storyboard
create mode GitTest/Base.lproj/Main.storyboard
create mode GitTest/Info.plist
create mode GitTest/ViewController.h
create mode GitTest/ViewController.m
create mode GitTest/main.m
create mode GitTestTests/GitTestTests.m
create mode GitTestTests/Info.plist
create mode GitTestUITests/GitTestUITests.m
create mode GitTestUITests/Info.plist

或者不添加注释 git commit  ,但是这样会进入vim(vi)编辑器

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch master
# Changes to be committed:
# modified: LQQCircleShowImage.xcodeproj/project.pbxproj
# modified: LQQCircleShowImage/TableViewCell.m
#
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
"~/Desktop/LQQCircleShowImage/.git/COMMIT_EDITMSG" 8L, 292C

在这里可以输入更改信息,也可以不输入,然后 按住 shift + :  ,输入wq 即可保存信息并退出vim编辑器;

四,建立远程库

在一些代码托管平台创建项目,例如github或者开源中国社区,这里已开源中国社区为例;

创建项目后,会生成一个HTTPS链接,如下:

利用git提交代码

https://git.oschina.net/liuqiqiang/gitTest.git  

五,将本地的库链接到远

终端中输入: git remote add origin HTTPS链接

$ git remote add origin https://git.oschina.net/liuqiqiang/gitTest.git  

六.上传代码到远程库,上传之前最好先Pull一下,再执行命令: git pull origin master

输出:

$ git pull origin master
warning: no common commits
remote: Counting objects: , done.
remote: Total (delta ), reused (delta )
Unpacking objects: % (/), done.
From https://git.oschina.net/liuqiqiang/gitTest
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
Merge made by the 'recursive' strategy.
README.md | +
file changed, insertion(+)
create mode README.md

即pull成功,

七.接着执行:git push origin master

完成后输出:

$ git push origin master
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), 15.63 KiB | bytes/s, done.
Total (delta ), reused (delta )
To https://git.oschina.net/liuqiqiang/gitTest.git
5e2dda1..537ecfe master -> master

即将代码成功提交到远程库!!!

注:如果pull之后出现 “ refusing to merge unrelated histories ”这句,就证明你合并pull两个不同的项目

出现的问题如何去解决fatal: refusing to merge unrelated histories

我在Github新建一个仓库,写了License,然后把本地一个写了很久仓库上传。

先pull,因为两个仓库不同,发现refusing to merge unrelated histories,无法pull

因为他们是两个不同的项目,要把两个不同的项目合并,git需要添加一句代码,在git pull,这句代码是在git 2.9.2版本发生的,最新的版本需要添加--allow-unrelated-histories

假如我们的源是origin,分支是master,那么我们 需要这样写git pull origin master --allow-unrelated-histories需要知道,我们的源可以是本地的路径

接着到你的远程库查看,提交前:利用git提交代码

提交成功后:

利用git提交代码

注意:操作的时候,指令不要输错了!!!!

下面这个是输错了 orgin的输出:

git pull orgin master
fatal: 'orgin' does not appear to be a git repository
fatal: Could not read from remote repository. Please make sure you have the correct access rights
and the repository exists.

正确的应该是origin!!

如果在push的时候有如下输出:

$ git push -u origin master
To https://git.oschina.net/liuqiqiang/LQQCircleShowImage.git
! [rejected] master -> master (fetch first)
error: failed to push some refs to 'https://git.oschina.net/liuqiqiang/LQQCircleShowImage.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 integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

看提示可知道,需要先pull一下,即执行一次:git pull origin master

然后再执行:git push origin master

分支管理

新建分支

$ git branch newbranch

查看分支

$ git branch

输出:

* master
newbranch

*代表当前所在的分支

切换分支

$ git checkout new branch

输出

Switched to branch 'newbranch'

切换后可用git branch查看是否切换到当前分支

master
* newbranch

提交改动到当前分支

$ git add .
$ git commit -a

可使用git status查看提交状态

接着切回主分支

$ git checkout master

输出:

Switched to branch 'master'

将新分支提交的改动合并到主分支上

$ git merge newbranch

输出:

Updating cc73a48..93a1347
Fast-forward
GitTest.xcodeproj/project.pbxproj | +++++++++
.../UserInterfaceState.xcuserstate | Bin -> bytes
GitTest/test.h | +++++++++++++
GitTest/test.m | +++++++++++++
files changed, insertions(+)
create mode GitTest.xcodeproj/project.xcworkspace/xcuserdata/Artron_LQQ.xcuserdatad/UserInterfaceState.xcuserstate
create mode GitTest/test.h
create mode GitTest/test.m

这里我提交了两个文件,即:test.h和test.m

如果合并后产生冲突,可输入以下指令查看冲突:

$ git diff

修改之后,再次提交即可;

接下来,就可以push代码了:

$ git push -u origin master

这时可能需要你输入你的github用户名和密码,按照提示输入即可;

删除分支

$ git branch -D newbranch

输出

Deleted branch newbranch (was 93a1347).

以上就是最简单的github操作了,也是在网上看着学的,注意在实际操作中多加练习,代码这东西,刚开始桥的多了也就记下了!

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