What's inside the .git folder
summary
29 minutes of screen sharing that opens a real .git folder, unzips actual objects and shows exact commit/tree/blob contents; uses a custom unzipper and the git-explorer visualizer to display six then seven nodes, demonstrates git cat-file, pack files and zlib-compressed objects, shows branches as plain text refs, creates a detached HEAD, uses git commit --amend, pushes to a bare repo, inspects hooks, the binary index and explains how reflog recovers lost commits and why secrets committed once are effectively permanent.
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chapters (26)
- 0:00Introduction to .git folder
- 2:09Creating a Git repository
- 3:14Git objects and commits
- 6:52Visualizing Git objects
- 8:41Staging area and blobs
- 11:10Handling secrets in commits
- 12:55Pack files in Git
- 13:17Branches and HEAD
- 14:43Detached HEAD state
- 15:46Creating and switching branches
- 16:09Remote repositories
- 17:39Tags in Git
- 18:23Reflog for commit recovery
- 19:50Git hooks overview
- 21:40Automating with hooks
- 22:01Exclude vs .gitignore
- 23:05Git config files
- 24:52Git aliases and settings
- 25:56Description file
- 26:18Git index file
- 27:41Summary of .git contents
- 28:46Q&A on compression and deltas
- 30:09Practical uses of Git knowledge
- 31:57Q&A on hooks and tools
- 32:57Resources for further learning
- 34:23Closing and next steps
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