# Update package lists
sudo apt update

# Install build essentials (GCC, make, etc.)
sudo apt install build-essential

# Install zlib development library (needed for PNG homework)
sudo apt install zlib1g-dev

# Install Criterion testing framework
sudo apt install libcriterion-dev

# Install debugging tools
sudo apt install gdb valgrind

# Install hex dump utility (usually pre-installed)
which hd || sudo apt install bsdmainutils

# Check GCC version (should be 7.0 or higher)
gcc --version

# Check make
make --version

# Check Criterion
pkg-config --modversion criterion

# Check gdb
gdb --version

# 1. Make changes to your code
vim src/png_reader.c

# 2. Test locally first
make clean all
bin/png_tests --verbose=0

# 3. Commit your changes
git add src/png_reader.c
git commit -m "Implement png_read_chunk function"

# 4. Push to CodeGrade
git push origin main

# 5. Check CodeGrade dashboard for results

# Commit source code and headers you create/modify
git add src/*.c
git add include/*.h

# Commit your own test files if you write them
git add tests/my_custom_test.c

# These should never be committed (already in .gitignore)
# bin/png
# bin/png_tests
# build/*.o
# *.swp

# Good commit messages
git commit -m "Implement png_read_chunk with CRC validation"
git commit -m "Fix memory leak in png_parse_plte"
git commit -m "Add error handling for invalid chunk lengths"

# Poor commit messages (avoid these)
git commit -m "update"
git commit -m "fix bug"
git commit -m "wip"

# Install Criterion development package
sudo apt install libcriterion-dev

# Or build from source if not available in your package manager

# Install zlib development headers
sudo apt install zlib1g-dev

# Configure git identity
git config --global user.name "Your Name"
git config --global user.email "[email protected]"

# Use credential helper to cache password
git config --global credential.helper cache