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#!/usr/bin/env bash
options=""
usage() {
cat <<HERE
usage: git alias [options] # list all aliases
or: git alias [options] <search-pattern> # show aliases matching pattern
or: git alias [options] <alias-name> <command> # alias a command
options:
--global Show or create alias in the system config
--local Show or create alias in the repository config
HERE
}
if [[ "$1" == "--local" || "$1" == "--global" ]]; then
options=$1
shift
fi
case $# in
0)
if [[ -z "$options" ]]; then
git config --get-regexp 'alias.*' | sed 's/^alias\.//' | sed 's/[ ]/ = /' | sort
else
git config "$options" --get-regexp 'alias.*' | sed 's/^alias\.//' | sed 's/[ ]/ = /' | sort
fi
;;
1)
if [[ -z "$options" ]]; then
git config --get-regexp 'alias.*' | sed 's/^alias\.//' | sed 's/[ ]/ = /' | sort | grep -e "$1"
else
git config "$options" --get-regexp 'alias.*' | sed 's/^alias\.//' | sed 's/[ ]/ = /' | sort | grep -e "$1"
fi
;;
2)
if [[ -z "$options" ]]; then
git config alias."$1" "$2"
else
git config "$options" alias."$1" "$2"
fi
;;
*) >&2 echo "error: too many arguments." && usage && exit 1 ;;
esac
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