# =====================
# = Hello Git Objects =
# =====================
 
# Creates basic Git repository with one file to show how Git stores and tracks content
 
# Create new folder for repository
mkdir hello_git_objects
cd hello_git_objects
 
# Initialize Git repository inside
git init
 
# ---
 
tree .git
 
# ---
 
# Add some content
echo "Hello, World" > file.txt
cat file.txt
 
# ---
 
# Show repository status
git status
 
# ---
 
# Add file to index and show status
git add file.txt
git status
 
# ---
 
# Commit the staged file
git commit -m "Initial commit"
 
# ---
 
# Show revision log
git log --stat
 
# ---
 
# Create a tag in repository from last revision
git tag -a v.0.1 -m "First version"
 
# ---
 
# Let's inspect the repository "raw" contents a little bit
tree .git/objects
# ---
find .git/objects -type f
 
# ---
 
# Let's have a look what we have here
# Starting with the commit
echo "Last revision ID is" $(git log --format="%H" -1)
 
git cat-file -p $(git log --format="%H" -1)
 
# ---
 
# Let's have a look at the tree
git cat-file -p 76bf39ab0db46b183b49d9f707d86e580f78e932
 
# ---
 
# Let's have a look at the blob
git show 3fa0d4b98289a95a7cd3a45c9545e622718f8d2b
 
# ---
 
# And finally at the tag
git show v.0.1