mirror of
https://github.com/git-learning-game/oh-my-git.git
synced 2024-12-22 20:32:38 +01:00
38 lines
1.3 KiB
Text
38 lines
1.3 KiB
Text
[description]
|
|
|
|
Trees can also point to other trees! This way, they can describe nested directory structures.
|
|
|
|
When you add a file inside of a directory to the index, and then call `git write-tree`, it will create a nested tree for the directory, and attach the blob to it.
|
|
|
|
To solve this level, build a little stick figure, as shown on the left - a tree that points to two blobs, as well to a tree that points to two blobs.
|
|
|
|
[setup]
|
|
|
|
[setup goal]
|
|
|
|
echo "I'm the left arm" > arm1
|
|
echo "I'm the right arm" > arm2
|
|
mkdir hip
|
|
echo "I'm the left leg" > hip/leg1
|
|
echo "I'm the right leg" > hip/leg2
|
|
git add .
|
|
git write-tree
|
|
|
|
[win]
|
|
|
|
TREES=$(git cat-file --batch-check='%(objectname) %(objecttype)' --batch-all-objects | grep tree | cut -f1 -d" ")
|
|
|
|
for OUTER_TREE in $TREES; do
|
|
NUMBER_OF_BLOB_CHILDREN=$(git cat-file -p $OUTER_TREE | cut -f2 -d" " | grep blob | wc -l)
|
|
NUMBER_OF_TREE_CHILDREN=$(git cat-file -p $OUTER_TREE | cut -f2 -d" " | grep tree | wc -l)
|
|
|
|
if [ $NUMBER_OF_BLOB_CHILDREN -eq 2 -a $NUMBER_OF_TREE_CHILDREN -eq 1 ]; then
|
|
TREE_CHILD=$(git cat-file -p $OUTER_TREE | cut -f1 | grep tree | cut -d" " -f3)
|
|
NUMBER_OF_BLOB_CHILDREN_OF_TREE_CHILD=$(git cat-file -p $TREE_CHILD | cut -f2 -d" " | grep blob | wc -l)
|
|
if [ $NUMBER_OF_BLOB_CHILDREN_OF_TREE_CHILD -eq 2 ]; then
|
|
return 0
|
|
fi
|
|
fi
|
|
done
|
|
|
|
return 1
|