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Rename levels to avoid numbers

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This commit is contained in:
Sebastian Morr 2020-09-15 14:51:03 +02:00
parent d5ac67c4cc
commit 15ec7a0df4
24 changed files with 0 additions and 0 deletions
levels/ref-create
descriptiongoalstartwin

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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 start a ref's name with "refs/"! That's a convention that helps Git find all refs you create.
Create refs that point to all objects in this repository!

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git update-ref refs/a $BLOB1
git update-ref refs/b $BLOB2
git update-ref refs/c $TREE
git update-ref refs/d $COMMIT

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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")

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OBJECTS=$(git cat-file --batch-check='%(objectname)' --batch-all-objects | sort)
REF_TARGETS=$(git show-ref -s | sort | uniq)
test "$OBJECTS" = "$REF_TARGETS"