grr: git run root

grr

#! /bin/bash

function print_usage () {
    echo "usage: $0 [-n] COMMAND [ARGS...]"
    echo "	Runs COMMAND from the toplevel directory of the current git repository"
    echo "	-n: Don't run, just print the full path of the command"
    exit 1
}
if [[ $# -lt 1 ]]; then
    print_usage;
fi

declare dry_run


if [[ z"$1" == "z-n" ]]; then
    shift;
    dry_run=1
fi

if [[ $# -lt 1 ]]; then
    print_usage;
fi

# install with
#   source /dev/stdin <<<"$(cat <(${HOME}/tools/bin/grr --bash-complete))"
function shell_complete () {
    cat - <<'EOF'
function _grr_completion () {
    if [[ "${#COMP_WORDS[@]}" -ne 2 ]] ; then
	return;
    fi
    local d=$(git rev-parse --show-toplevel)
    if [[ $? -ne 0 ]] ; then
	return;
    fi
    local w=$(find "$d" -type f -perm +a+x -maxdepth 1)
    local -a g=($(compgen -W "$w" "${COMP_WORDS[1]}"))
    if [[ "${#g[@]}" -eq 0 ]] ; then
	g+=($(cd "$d" && compgen -A file -o nospace "${COMP_WORDS[1]}"))
    fi
    COMPREPLY+=(${g[@]})
}
complete -F _grr_completion -o bashdefault -o default -o nospace grr
EOF
}

if [[ z$1 == z"--bash-complete" ]]; then
    shell_complete
exit 0
fi

p=$1
shift

d=`git rev-parse --show-toplevel`
if [[ $? -ne 0 ]]; then
   exit 1
fi

if [[ z"${dry_run}" = z1 ]]; then
    echo "${d}/${p}" "$@"
else
    echo Running "${d}/${p}" "$@"
    exec "${d}/${p}" "$@"
fi