Compare Git and SVN and see which one is better for you!
As software development continues to advance, version control systems (VCS) have become more necessary. They help manage code and collaborate with other developers to minimize code conflicts and errors. Among VCS, Git and Subversion (SVN) are the two most commonly used. This article will compare the pros and cons of Git and SVN so you can decide which is better for your team.
- Git
Git was developed in 2005 by Linus Torvalds. It is a distributed version control system, meaning each developer has a local repository and can make changes without connecting to a central repository.
Advantages:
- Faster speed: Due to Git’s distributed architecture, it is much faster than SVN. Laptopmag reported that Git is 4 times faster than SVN.
- Better conflict resolution: Git’s powerful branching feature makes it easier to resolve conflicts. Git can handle these situations better when multiple developers are editing the same file at the same time.
- Better code management: Git’s powerful branching function also makes code management easier. Developers can use Git branches to isolate parts of their work.
Disadvantages:
- Steeper learning curve: Compared with SVN, Git has more commands and concepts, so it is more difficult to learn.
- Larger repository capacity: Since each developer has a complete repository, the repository size is larger than SVN.
- SVN
SVN is a centralized version control system. This means that the file on the developer's desktop is a "copy" of the latest version, while the actual code is stored on a central server.
Advantages:
- Easy to learn: Compared with Git, SVN is simpler, more direct, and easier to get started.
- Small repository: Since there is only one central repository, and developers only have permission to modify the copy, SVN's repository is smaller.
Disadvantages:
- Poor conflict resolution: Compared to Git, SVN is not effective at conflict resolution.
- Branching is more difficult: Since SVN’s branching function is weak, tagging is usually used instead of branches when performing code management.
Conclusion
In general, Git is currently the more popular version control system because of its fast speed, excellent conflict handling and code management. However, SVN is still a preferable option, especially for beginners and when the repository is small.
Ultimately, your choice should be based on factors such as your team goals, size, experience level, and more. No matter which version control system you choose, remember to follow best practices and make sure to back up your code regularly.
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To create a new branch from the old commit, first find the hash value of the target commit, then use the gitcheckout-b or gitswitch-c command to create the branch, and finally verify that the branch is generated correctly. The specific steps are: 1. Use gitlog--oneline to find the commit hash, or use gitlog-S "keyword" to locate a specific commit; 2. Execute gitcheckout-b new branch name submission hash or gitswitch-c new branch name submission hash to create a branch, Git supports abbreviated hash; 3. Confirm branch information through gitlog and gitbranch, and check the file content to ensure correctness. The whole process is simple and reliable, and can be done after proficiency.

Usegitlogwith--all,--full-history,and--diff-filtertofindcommitsinvolvingadeletedormissingfilebyname,thengrepforthefilenametoidentifyrelevantcommits;oncelocated,usegitshoworgitcheckouttoinspectorrestorethefilefromaspecificcommit.

Use gitpull--rebase to reapply local commits to the top of the remotely updated branch, avoiding generating redundant merge commits, thus maintaining linear history. During execution, the local submission is temporarily saved, the latest changes are pulled, and then the local submission is replayed one by one. If a conflict occurs, you need to resolve it manually and run gitrebase--continue to continue, or terminate with gitrebase--abort. It is recommended to use it only on unshared feature branches, avoid rebaseing of common branches such as main and prevent affecting collaborators. Rebase can be enabled by default through gitconfig settings. Before the operation, you should first gitfetch ensures the latest information to maintain the clean history and synchronize changes in a timely manner.

Usegitarchivetocreateacompressedsnapshotofarepositoryataspecificcommit,excluding.gitmetadata.Rungitarchive--format=zip--output=repo-archive.zipHEADtopackagethelatestcommitintoaZIPfile,orusetar.gzforatarball.Add--prefix=myproject-v1.0/toincludeadirect

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Settheupstreamremotewith"gitremoteaddupstream[URL]"tolinkyourforktotheoriginalrepository.2.Fetchchangesfromupstreamusing"gitfetchupstream"todownloadthelatestupdates.3.Mergethemintoyourlocalmainbranchwith"gitcheckoutmain"

Use gitdiff-tree--name-only-r to list all the change files in the specified submission. Add --name-status to display the file status (A/M/D), which is suitable for script processing and is concise in output.

Usegitlog--author="AuthorName"tofiltercommitsbyauthor,supportingpartialmatchesandemailsearches,withoptionalformattinglike--onelineforcleareroutput.
