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119 lines
2.0 KiB
Bash
119 lines
2.0 KiB
Bash
#!/bin/bash
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VERSION="0.0.6"
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## output error to stderr
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error () {
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printf >&2 "error: %s\n" "${@}"
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}
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## output usage
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usage () {
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echo ""
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echo " usage: bpkg [-hV] <command> [args]"
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echo ""
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}
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## commands
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commands () {
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{
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declare -a local cmds=( $(
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bpkg-suggest 'bpkg-' |
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tail -n+2 |
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xargs basename |
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sort -u |
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sed 's/bpkg-//g' |
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tr '\n' ' '
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) )
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echo "${cmds[@]}"
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}
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}
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## feature tests
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features () {
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declare -a local features=(bpkg-json bpkg-suggest)
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for ((i = 0; i < ${#features[@]}; ++i)); do
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local f="${features[$i]}"
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if ! type "${f}" > /dev/null 2>&1; then
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error "Missing "${f}" dependency"
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return 1
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fi
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done
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}
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bpkg () {
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local arg="$1"
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local cmd=""
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shift
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## test for required features
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features || return $?
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case "${arg}" in
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## flags
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-V|--version)
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echo "${VERSION}"
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return 0
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;;
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-h|--help)
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usage
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echo
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echo "Here are some commands available in your path:"
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echo
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local cmds=($(commands))
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for cmd in ${cmds[@]}; do
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echo " ${cmd}"
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done
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return 0
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;;
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*)
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if [ -z "${arg}" ]; then
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usage
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return 1
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fi
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cmd="bpkg-${arg}"
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if type -f "${cmd}" > /dev/null 2>&1; then
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"${cmd}" "${@}"
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return $?
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else
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echo >&2 "error: \`${arg}' is not a bpkg command."
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{
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declare -a local res=($(
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bpkg-suggest "${cmd}" |
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tail -n+2 |
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xargs basename |
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sort -u |
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tr '\n' ' '
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))
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if [ ! -z "${res}" ]; then
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echo
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echo >&2 "Did you mean one of these?"
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for r in ${res}; do
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echo " ${r}"
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done
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return 1
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else
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usage
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return 1
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fi
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}
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fi
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;;
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esac
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usage
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}
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## export or run
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if [[ ${BASH_SOURCE[0]} != $0 ]]; then
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export -f bpkg
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else
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bpkg "${@}"
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exit $?
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fi
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