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About This Tool
The Interactive Git Branching & DAG Commit Simulator illustrates version control concepts by rendering Git commits, branch pointers, and graph trees on a visual Directed Acyclic Graph (DAG) timeline.
### Interactive Commit Graph Architecture The simulator provides a visual sandbox modeling core Git commit pointer behavior: - **Initial Baseline Timeline**: Boots with three sequential commits illustrating an existing project lineage: - Commit "c1" on "main" ("initial commit"). - Commit "c2" on "main" ("feat: add tools engine"). - Commit "c3" on "feature" ("feat: add dark theme"). - **Branch Pointer Actions**: - **+ Commit on Main**: Records a new commit node attributed to the "main" branch, styled with an emerald badge and incremental identifier ("c4", "c5", etc.). - **+ Commit on Feature**: Appends a new commit node attributed to the "feature" branch, styled with an indigo badge. - **Visual Node Flow**: Commits link sequentially through directional arrow connectors inside a horizontally scrollable container.
### Practical Learning Example Simulating feature development in a shared repository: 1. Review the initial state showing divergent work on "feature" ("c3") from "main" ("c2"). 2. Click **+ Commit on Main** to simulate a teammate committing a hotfix ("c4") directly to the production branch. 3. Click **+ Commit on Feature** to simulate adding secondary feature enhancements ("c5"). 4. Inspect the resulting commit graph to understand how multiple branches evolve concurrently before merging.
### In-Browser Processing & Privacy Note All commit state management, DAG node rendering, and branch pointer tracking execute strictly within local browser JavaScript memory. No Git credentials, repository histories, or source code files are transmitted to external servers.
How to Use
- 1
Examine the default initial commit chain (c1, c2 on main; c3 on feature).
- 2
Click + Commit on Main to simulate recording a new commit on the main branch.
- 3
Click + Commit on Feature to simulate developing on an independent feature branch.
- 4
Scroll horizontally across the graph timeline to inspect commit identifiers and branch allocations.
Frequently Asked Questions
What is a Git DAG (Directed Acyclic Graph)?
A Directed Acyclic Graph is the mathematical data structure Git uses to represent history. Each commit points to its parent commit(s) in one direction, preventing circular loops and ensuring cryptographic commit integrity.
Can I connect this simulator to a real remote GitHub repository?
This tool is an educational in-browser visualizer designed to demonstrate branching logic without interacting with remote git servers.
Are my simulated commits sent to any server?
No. All simulator state resides 100% locally in your client-side browser runtime.