mirror of
https://github.com/git-learning-game/oh-my-git.git
synced 2024-11-26 16:20:15 +01:00
42 lines
1.2 KiB
Text
42 lines
1.2 KiB
Text
[description]
|
|
|
|
Let's take a look at "refs" (short for "references")! Refs are not objects, but rather very simple *pointers* to objects! They can help you keep track of what's where.
|
|
|
|
You can create or update a ref with
|
|
|
|
git update-ref refs/<refname> <newvalue>
|
|
|
|
Make sure to always start a ref's name with "refs/"! That's a convention that helps Git find all refs you create. If you forget the "refs/", you will not see the ref.
|
|
|
|
Create refs that point to all objects in this repository!
|
|
|
|
[setup]
|
|
|
|
echo hello > hello
|
|
echo world > world
|
|
BLOB1=$(git hash-object -w hello)
|
|
BLOB2=$(git hash-object -w world)
|
|
git add .
|
|
TREE=$(git write-tree)
|
|
COMMIT=$(git commit-tree $TREE -m "Initial commit")
|
|
|
|
[setup goal]
|
|
|
|
echo hello > hello
|
|
echo world > world
|
|
BLOB1=$(git hash-object -w hello)
|
|
BLOB2=$(git hash-object -w world)
|
|
git add .
|
|
TREE=$(git write-tree)
|
|
COMMIT=$(git commit-tree $TREE -m "Initial commit")
|
|
|
|
git update-ref refs/a $BLOB1
|
|
git update-ref refs/b $BLOB2
|
|
git update-ref refs/c $TREE
|
|
git update-ref refs/d $COMMIT
|
|
|
|
[win]
|
|
|
|
OBJECTS=$(git cat-file --batch-check='%(objectname)' --batch-all-objects | sort)
|
|
REF_TARGETS=$(git show-ref -s | sort | uniq)
|
|
test "$OBJECTS" = "$REF_TARGETS"
|