41 lines
1.6 KiB
Bash
41 lines
1.6 KiB
Bash
#!/bin/sh
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# A sample hook to validate the branches involved in a rebase operation
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#######################################################################
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#
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# This hook is invoked right before `git rebase` starts its work and
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# prevents anything else to happen by returning a non-zero exit code.
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#
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# The following arguments are provided:
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#
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# $1 - the branch that contains the commit from which $2 was forked.
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# $2 - the branch being rebased or no second argument at all if the rebase applies to `HEAD`.
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#
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# This example hook aborts the rebase operation if the branch being rebased is not up to date
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# with the latest changes from the upstream branch, or if there are any uncommitted changes.
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#
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# To enable this hook remove the `.sample` suffix from this file entirely.
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upstream_branch=$1
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if [ "$#" -eq 2 ]; then
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branch_being_rebased=$2
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else
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branch_being_rebased=$(git symbolic-ref --quiet --short HEAD) || exit 0 # ignore rebases on detached heads
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fi
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# Check if the branch being rebased is behind the upstream branch
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if git log --oneline ${upstream_branch}..${branch_being_rebased} > /dev/null; then
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echo "Warning: The branch being rebased (${branch_being_rebased}) is behind the upstream branch (${upstream_branch})." 1>&2
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echo "Please update your branch before rebasing." 1>&2
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exit 1
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fi
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# Check if there are any uncommitted changes
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if ! git diff-index --quiet HEAD --; then
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echo "Warning: There are uncommitted changes in your branch ${branch_being_rebased}." 1>&2
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echo "Please commit or stash your changes before rebasing." 1>&2
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exit 2
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fi
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# All good, let the rebase proceed.
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exit 0
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