[Git] Basic Concept and Information

[Goal]

• Git을 사용하는데 있어 필수적으로 사용되거나 알아야 할 다양한 기능들에 대해서 알아본다.

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[Reference Site]

• 맨 처음에 기초적으로 사용되는 기능들에 대해서 참고하기 좋은 사이트인 것 같다.
  • [ https://backlog.com/git-tutorial/kr/stepup/stepup2_2.html ]

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[사용되는 기능 및 명령어]

Image get from: https://support.nesi.org.nz/hc/en-gb/articles/360001508515-Git-Reference-Sheet

# Make first local repository 
$ git init

# To see all branch corresponding this package
$ git branch -a 

# To make another branch corresponding this package
$ git branch <own_name>

# Move to another branch in corresponding this package
$ git checkout <branch_name> 

# Add all changes(modified files) to current branch 
$ git add .

# Add some files to current branch
$ git add README.md

# Register modified files to remote storage
$ git commit -m "Message Content" 

# Save and upload modified files to remote storage
$ git push origin <branch_name>

# See git status
$ git status

# See git history
$ git log

# To go pull another branch in origin root
$ git reset --hard (6~7 words)

# Get remote repository to update
$ git pull

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[주의 사항]

• git clone을 하게 되면 특정 version branch가 아닌 main branch가 clone이 된다. 그래서 우리는 특정 branch로 이동하기 위해서 다음과 같이 변경해주어야 한다.
  • Example of "rosbot-stm32-firmware" in "lib" folder

# First download default main 
$ git clone https://github.com/byq77/rosserial-mbed.git

# Then convert to which person want to see
$ git reset --hard 509e7c1

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• 이제는 git clone을 해서 username & password를 사용하는 것이 아니라, SSH key를 만들어서 접속한다.
  • 공개 key와 private key를 만들어서 이것들을 USB에 담아서 다른 저장장치에 사용한다.
    • Reference Site
      • [ https://jootc.com/p/201905122827 ]
        [ https://insight.infograb.net/docs/user/ssh_keys/ ]
        [ https://sidorl.tistory.com/52 ]