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#!/usr/bin/env bash
set -euo pipefail
discover_op() {
local gitdir
# git rev-parse emits an error if not in a git repo so only need to bail out
gitdir="$(git rev-parse --git-dir)" || exit
local op
for op in cherry_pick merge rebase revert ; do
if [ -f "${gitdir}/${op^^}_HEAD" ]; then
echo "${op/_/-}"
fi
done
}
validate_op() {
local op="$1"
if [ -z "$op" ]; then
echo "No active operation found" >&2
exit 1
fi
if [[ "$(echo "$op" | wc -l)" -gt 1 ]]; then
echo "Multiple active operations found: $op" >&2
exit 1
fi
}
discover_action() {
local action=${1/git-/}
if [ "$action" != "abort" ] && [ "$action" != "continue" ]; then
echo "Invalid action: $1" >&2
exit 1
fi
echo "$action"
}
action=$(discover_action "$(basename "$0")")
op=$(discover_op)
validate_op "$op"
git "$op" "--$action"
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