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30 lines
934 B
Text
30 lines
934 B
Text
[description]
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A commit can have multiple parents! You can specify the -p option multiple times, like this:
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git commit-tree <tree> -m "Description" -p <parent1> -p <parent2>
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Build a rhombus shape from commits, where two commits point to the same parent, and then a fourth commit points to both of them.
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[setup]
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[setup goal]
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TREE=$(git write-tree)
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SOUTH=$(git commit-tree $TREE -m "South")
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EAST=$(git commit-tree $TREE -m "East" -p $SOUTH)
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WEST=$(git commit-tree $TREE -m "West" -p $SOUTH)
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NORTH=$(git commit-tree $TREE -m "Nort" -p $EAST -p $WEST)
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[win]
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COMMITS=$(git cat-file --batch-check='%(objectname) %(objecttype)' --batch-all-objects | grep commit | cut -f1 -d" ")
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for COMMIT in $COMMITS; do
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# My first parent's parents has to be the same as my second parent's parent.
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if [ "$(git rev-parse --verify -q $COMMIT^1^)" = "$(git rev-parse --verify -q $COMMIT^2^)" ]; then
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return 0
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fi
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done
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return 1
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