How does Git's snapshot-based storage efficiently store project history without saving a full copy of every file in every commit?

Git efficiently stores project history by conceptualizing each commit as a complete snapshot of the project's files at a specific moment, rather than primarily storing only the differences (deltas) between versions. This snapshot model is made efficient through its content-addressable storage system, which identifies and stores data based on its unique content. Every piece of information Git stores, including file contents, directory structures, and commit metadata, is immutable and is assigned a unique SHA-1 (or SHA-256 in newer versions) hash of its content. If two distinct files, directories, or other data elements have identical content, they will produce the exact same hash, and Git will store only one copy of that content object. Git primarily uses three types of objects: 1. Blob objects: These store the exact content of a file. When a file is added or modified, Git calculates its hash. If an object with that hash already exists in the repository's storage, G....