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#!/bin/bash
set -euE
is_int() {
local re='^[0-9]+$'
[[ $1 =~ $re ]]
}
errusage() {
if [[ $# != 0 ]]; then
echo >&2 "${0##*/}: error: $*"
fi
echo >&2 "Usage: ${0##*/} [REMOTE] PR_NUMS..."
return 2
}
main() {
if [[ $# == 0 ]]; then
errusage 'require 1 or more PR numbers'
fi
local remote=origin
if ! is_int "$1"; then
remote=$1
shift
if [[ $# == 0 ]]; then
errusage 'require 1 or more PR numbers'
fi
fi
local refspecs=()
for pr in "$@"; do
if ! is_int "$pr"; then
errusage "not a number: ${pr@Q}"
fi
refspecs+=(
"refs/pull/${pr}/head:refs/pull/${pr}/head"
#"refs/pull/${pr}/merge:refs/pull/${pr}/merge"
)
done
git fetch --force "$remote" "${refspecs[@]}"
}
main "$@"
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