README.md

Git exercise: Basic cleaning

Setup:

# make-exercise-repo 
mkdir src

echo "** SOME USEFUL INFO ** " > README.txt
echo "// awesome C code " > src/myapp.c
echo "// awesome C header " > src/myapp.h

git add src/myapp.* README.txt
git commit -m "C code for my app"

echo "// awesome C library  " > src/mylib.c

touch src/myapp.c~ src/oldfile.c~ 
touch README.txt~
mkdir obj
touch obj/mylib.o obj/mylib.a obj/myapp.o obj/a.out

The task

You are working on a project that involves generated files. Say you are compiling C files into object files. Before checking out a new branch you want to start clean

1. Explore the directory with ls -R. There is a lot going on. Code files,,.. Let's clean up!
2. Just to be safe, do a dry run and execute the clean command with the -n option
3. Oh no! there's a .c file that would have been deleted!
4. Add src/mylib.c to the staging area. don't commit it.
5. Run the clean command with the -n option. Notice that mylib.c will not be deleted. Also notice that the files in the obj directory are not listed
6. Run the clean command with the -n -d option.
7. Looks good! clean the repo -f -d

Useful commands

• git clean -n
• git add
• git clean -n -d
• git clean -f -d