Git Version Control: Understanding the Underlying Logic of Snapshots and Version Evolution
This article introduces the core knowledge of version control and Git. Version control is used to securely preserve code history, enabling backtracking, collaboration, and experimentation, while resolving code conflicts in multi - person collaboration. Git is a distributed version control system where each developer has a complete local copy of the code history, eliminating the need for continuous internet connection and enhancing development flexibility. Git's core design consists of "snapshots" (each commit is a complete copy of the code state for easy backtracking) and "branches" (managing development in parallel through pointers, such as the main branch and feature branches). Its three core areas are the working directory (where code is modified), the staging area (temporarily storing changes to be committed), and the local repository (storing snapshots). The operation process is "writing code → adding to the staging area → committing to the repository". Basic operations include initialization (git init), status checking (status), committing (add + commit), history viewing (log), branch management (branch + checkout + merge), version rollback using reset, and collaboration through remote repositories (push/pull). Essentially, Git is "snapshots + branches". By understanding the core areas and basic operations, one can master Git, which supports clear code evolution and team collaboration.
Read MoreGit Quick Start: Master Basic Operations in 30 Minutes
Git is a distributed version control system (VCS) used to record file modification history, enabling team collaboration and personal history回溯 (retrospection). Its core advantages include version rollback (to prevent accidental modifications), multi - person collaboration (code merging), and local security management (operations first local, then cloud - based). Basic concepts are metaphorized by "areas": Working Directory (drafts), Staging Area (items to be committed), Local Repository (file cabinet), and Remote Repository (cloud - based shared library). Basic operations are divided into five steps: 1. Initialize the repository (`git init`); 2. Configure user information (`config`); 3. Track and commit changes (`status` to check status, `add` to stage, `commit` to save); 4. Version management (`log` to view history, `reset` to roll back); 5. Branch operations (`checkout - b` to create a branch, `merge` to combine branches); 6. Remote repository operations (`clone`, `push`, `pull`). The core principles are "timely commits, branch management, and version rollback", with a key command chain: `init→add→commit→log/reset→branch→push/pull`. Basic operations can be mastered in 30 minutes. For common issues like modifying commit messages, use `--amend`.
Read MoreGit Common Commands Quick Reference: Remember These 10 Commands, Git Operations Will Be Easy
This article introduces 10 core and commonly used Git commands to help beginners quickly master basic operations. The core commands cover the complete workflow from initialization to collaboration: - **Initialization/Clone**: `git init` initializes a local repository, and `git clone` copies code from a remote repository; - **Modify and Commit**: `git add` stages changes (use `.` for a single file or entire directory), and `git commit -m "message"` commits to the local repository (with clear commit messages); - **Status and History**: `git status` checks repository status, and `git log` views commit history (`--oneline` for a concise format); - **Branch Management**: `git checkout -b branch-name` creates and switches to a branch, and `git merge branch-name` merges branches (note conflict handling); - **Collaboration Operations**: `git pull` fetches and merges remote code, and `git push origin branch-name` pushes a local branch to the remote. The core workflow is: Initialize/Clone → Stage modifications (add) → Commit → Branch management → Collaboration (pull/push). Beginners can gradually become proficient through practice, reducing version management chaos.
Read MoreGit Newbies' Pitfall Guide: These Basic Operation Mistakes You Must Know
This article summarizes common basic mistakes made by Git beginners and their solutions to help them avoid pitfalls quickly. Common mistakes in repository operations include: repeatedly executing `git init` (which overwrites configurations and causes confusion; only execute it once), and entering the wrong clone address (copy the platform address to avoid manual input). For file staging and committing: omitting or adding extra files with `git add` (specify filenames or use `git status` to confirm), not checking the status before committing (always run `git status` first), and providing vague commit messages (e.g., empty messages or "changed something"; use clear descriptions like "fixed button misalignment"). In branch operations: failing to stash changes before switching branches (use `git stash` or `commit`), merging the wrong branch (confirm the current branch), and deleting the current branch (switch branches first). Regarding pull and push: confusing `pull` and `fetch` (fetch first, then merge), not pulling before pushing (pull first to avoid overwrites), and insufficient permissions (check the address and SSH keys). For version rollbacks: mistakenly using `--hard` without stashing (stash first and use `reflog` to restore), and recovering after rollback (check `reflog` for version numbers). In conflict resolution: failing to remove conflict markers or deleting content randomly (retain content and remove only markers).
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