diff options
Diffstat (limited to 'subr.rtl/rtl_fileop.subr')
| -rw-r--r-- | subr.rtl/rtl_fileop.subr | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/subr.rtl/rtl_fileop.subr b/subr.rtl/rtl_fileop.subr new file mode 100644 index 00000000..dd82311e --- /dev/null +++ b/subr.rtl/rtl_fileop.subr @@ -0,0 +1,143 @@ +# +# set +o errexit -o noglob -o nounset is assumed. +# + +# +# Private globals and subroutines +# +RTLP_FILEOP_LOG=0; +rtl_fileop_set_log() { RTLP_FILEOP_LOG="${1}"; }; + +rtlp_fileop_check() { + local _prefix="${1}" _pname="" _rname=""; shift; + while [ "${#}" -gt 0 ]; do + return 0; + shift; done; +}; + +rtlp_fileop_log() { + local _msg="${1}"; + if [ "${RTLP_FILEOP_LOG:-0}" -eq 1 ]; then + rtl_log_msg debug "${_msg}"; + fi; +}; + + +rtl_fileop() { + local _op="${1}" _dst="" _mode="" _install_args="" _owner="" _rc=0 _src=""; shift; + case "${_op}" in + cd) if [ \( -z "${1}" \) -o ! \( -L "${1}" -o -e "${1}" \) ]; then + rtl_log_msg fatalexit "Invalid or non-existent directory \`%s'." "${1}"; + elif rtlp_fileop_check "${PREFIX:-}" "${1}"; then + rtlp_fileop_log "Changing working directory to \`${1}'."; + cd -- "${1}"; _rc="${?}"; + fi; ;; + chmod) if [ "${#}" -lt 2 ]; then + rtl_log_msg fatalexit "Missing parameters (in: chmod %s.)" "${*}"; + elif _mode="${1}" && shift\ + && rtlp_fileop_check "${PREFIX:-}" "${*}"; then + rtlp_fileop_log "Changing file mode bits of \`${*}' to \`${_mode}'."; + chmod -- "${_mode}" "${@}"; _rc="${?}"; + fi; ;; + chown) if [ "${#}" -lt 2 ]; then + rtl_log_msg fatalexit "Missing parameters (in: chown %s.)" "${*}"; + elif _owner="${1}" && shift\ + && rtlp_fileop_check "${PREFIX:-}" "${*}"; then + rtlp_fileop_log "Changing file owner of \`${*}' to \`${_owner}'."; + chown -- "${_owner}" "${@}"; _rc="${?}"; + fi; ;; + cp_follow) + if [ "${#}" -lt 2 ]; then + rtl_log_msg fatalexit "Missing parameters (in: cp_follow %s}.)" "${*}"; + elif rtlp_fileop_check "${PREFIX:-}" "${*}"; then + _src="${*}"; _src="${_src% *}"; + _dst="${*}"; _dst="${_dst##* }"; + rtlp_fileop_log "Copying \`${_src}' into \`${_dst}' w/ -pLR."; + cp -pLR -- "${@}"; _rc="${?}"; + fi; ;; + cp) if [ "${#}" -lt 2 ]; then + rtl_log_msg fatalexit "Missing parameters (in: cp %s.)" "${*}"; + elif rtlp_fileop_check "${PREFIX:-}" "${*}"; then + _src="${*}"; _src="${_src% *}"; + _dst="${*}"; _dst="${_dst##* }"; + rtlp_fileop_log "Copying \`${_src}' into \`${_dst}' w/ -pPR."; + cp -pPR -- "${@}"; _rc="${?}"; + fi; ;; + install) + if [ "${#}" -lt 2 ]; then + rtl_log_msg fatalexit "Missing parameters (in: install %s.)" "${*}"; + else _dst="$(while [ ""${#}"" -gt 2 ]; do shift; done; printf "%s" "${2}")"; + _install_args="$(while [ ""${#}"" -gt 2 ]; do printf "%s" "${1}"; shift; done)"; + _src="$(while [ ""${#}"" -gt 2 ]; do shift; done; printf "%s" "${1}")"; + if rtlp_fileop_check "${PREFIX:-}" "${_dst}" "${_src}"; then + rtlp_fileop_log "Installing \`${_src}' into \`${_dst}' w/ ${_install_args}."; + install "${@}"; _rc="${?}"; + fi; + fi; ;; + ln_symbolic) + if [ \( -z "${1}" \) -o \( -z "${2}" \) ]; then + rtl_log_msg fatalexit "Missing parameters (in: ln_symbolic %s.)" "${*}"; + elif rtlp_fileop_check "${PREFIX:-}" "${2}"; then + if rtl_fileop test "${2}"; then + rtl_fileop rm "${2}"; + fi; + if [ "${?}" -eq 0 ]; then + rtlp_fileop_log "Linking \`${1}' to \`${2}' w/ -fs"; + ln -fs -- "${1}" "${2}"; _rc="${?}"; + fi; + fi; ;; + mv) if [ \( -z "${1}" \) -o \( -z "${2}" \) ]; then + rtl_log_msg fatalexit "Missing parameters (in: mv %s.)" "${*}"; + elif rtlp_fileop_check "${PREFIX:-}" "${1}" "${2}"; then + rtlp_fileop_log "Moving \`${1}' to \`${2}' w/ -fs"; + mv -f -- "${1}" "${2}"; _rc="${?}"; + fi; ;; + mkdir|mkfifo|rm|source|source_opt|test|touch) + while [ \( "${?}" -eq 0 \) -a \( ""${#}"" -gt 0 \) ]; do + if [ -z "${1}" ]; then + rtl_log_msg fatalexit "Missing parameters (in: %s %s.)" "${_op}" "${*}"; + elif [ "${_op}" = mkdir ]\ + && [ ! -d "${1}" ]\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + if rtl_fileop test "${1}"; then + rtl_fileop rm "${1}"; + fi; + rtlp_fileop_log "Making directory \`${1}'."; + mkdir -p -- "${1}"; _rc="${?}"; + elif [ "${_op}" = mkfifo ]\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + if rtl_fileop test "${1}"; then + rtl_fileop rm "${1}"; + fi; + rtlp_fileop_log "Creating FIFO \`${1}'."; + rtlp_fileop_check "${PREFIX:-}" "${1}"; + mkfifo -- "${1}"; _rc="${?}"; + elif [ "${_op}" = rm ]\ + && rtl_fileop test "${1}"\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + rtlp_fileop_log "Removing directory or file \`${1}'."; + rm -rf -- "${1}"; _rc="${?}"; + elif [ "${_op}" = source ]\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + rtlp_fileop_log "Sourcing file \`${1}'."; + . "${1}"; _rc="${?}"; + elif [ "${_op}" = source_opt ]\ + && rtl_fileop test "${1}"\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + rtlp_fileop_log "Sourcing file \`${1}'."; + . "${1}"; _rc="${?}"; + elif [ "${_op}" = test ]\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"\ + && ! [ \( -L "${1}" \) -o \( -e "${1}" \) ]; then + return 1; + elif [ "${_op}" = touch ]\ + && rtlp_fileop_check "${PREFIX:-}" "${1}"; then + rtlp_fileop_log "Touching file \`${1}'."; + touch -- "${1}"; _rc="${?}"; + fi; shift; + done; ;; + *) rtl_log_msg fatalexit "Error: rtl_fileop() called w/ invalid parameter(s): %s" "${*}"; ;; + esac; return "${_rc}"; +}; + +# vim:filetype=sh |