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Add environment control, fix checks and variable definition

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JeremyStar™ 2024-10-27 13:26:32 +01:00
parent 09a4952082
commit ecc668938d
Signed by: JeremyStarTM
GPG key ID: E366BAEF67E4704D
1 changed files with 52 additions and 11 deletions
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63
bashutils.sh
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@ -25,6 +25,41 @@
# unless it licensed under the same license without modifications. # unless it licensed under the same license without modifications.
# Environment control
function _bashutils_restore_environment() {
if [ -n "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" ]; then
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" == *"e"* ]] && set -e
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" != *"e"* ]] && set +e
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" == *"u"* ]] && set -u
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" != *"u"* ]] && set +u
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" == *"x"* ]] && set -x
[[ "${_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS}" != *"x"* ]] && set +x
[ -n "${_BASHUTILS_ENVIRONMENT_PREVIOUS_PIPEFAIL}" ] && set -o pipefail
[ -z "${_BASHUTILS_ENVIRONMENT_PREVIOUS_PIPEFAIL}" ] && set +o pipefail
unset _BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS
fi
}
function _bashutils_reset_environment() {
export "_BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS=${-}"
[ -o "pipefail" ] && export "_BASHUTILS_ENVIRONMENT_PREVIOUS_PIPEFAIL=true"
[ ! -o "pipefail" ] && export "_BASHUTILS_ENVIRONMENT_PREVIOUS_PIPEFAIL="
set -eo pipefail
set +ux
if [ -n "${*}" ]; then
# shellcheck disable=SC2068
${@}
EXITCODE="${?}"
_bashutils_restore_environment
return "${EXITCODE}"
fi
}
function _bashutils_restore_return() {
_bashutils_restore_environment
return "${1}"
}
# Logging # Logging
function diag() { [ "${BASHUTILS_LOGLEVEL}" -lt 1 ] && echo -e "DIAG ${*//\\n/\\n }"; } function diag() { [ "${BASHUTILS_LOGLEVEL}" -lt 1 ] && echo -e "DIAG ${*//\\n/\\n }"; }
function verb() { [ "${BASHUTILS_LOGLEVEL}" -lt 2 ] && echo -e "VERB ${*//\\n/\\n }"; } function verb() { [ "${BASHUTILS_LOGLEVEL}" -lt 2 ] && echo -e "VERB ${*//\\n/\\n }"; }
@ -33,6 +68,7 @@ function info() { [ "${BASHUTILS_LOGLEVEL}" -lt 4 ] && echo -e "INFO ${*//\\n/\
function warn() { [ "${BASHUTILS_LOGLEVEL}" -lt 5 ] && echo -e "WARN ${*//\\n/\\n }"; } function warn() { [ "${BASHUTILS_LOGLEVEL}" -lt 5 ] && echo -e "WARN ${*//\\n/\\n }"; }
function error() { [ "${BASHUTILS_LOGLEVEL}" -lt 6 ] && echo -e "ERR! ${*//\\n/\\n }" &> /dev/stderr; } function error() { [ "${BASHUTILS_LOGLEVEL}" -lt 6 ] && echo -e "ERR! ${*//\\n/\\n }" &> /dev/stderr; }
function crash() { function crash() {
_bashutils_reset_environment
[ "${1}" == "true" ] && CRASH_TERMINATE=true || CRASH_TERMINATE=false [ "${1}" == "true" ] && CRASH_TERMINATE=true || CRASH_TERMINATE=false
shift shift
# shellcheck disable=SC2002 # shellcheck disable=SC2002
@ -61,24 +97,29 @@ $(for index in $(seq 0 1000); do if [ -z "$(caller "${index}")" ]; then break; e
$([ "${CRASH_TERMINATE}" == "false" ] && echo "!!! This crash will not terminate the shell !!!") $([ "${CRASH_TERMINATE}" == "false" ] && echo "!!! This crash will not terminate the shell !!!")
EOF EOF
[ "${CRASH_TERMINATE}" == "true" ] && exit 69 [ "${CRASH_TERMINATE}" == "true" ] && exit 69
_bashutils_restore_environment
} }
# Utility methods # Checks
function set_undefined() { [ -z "${!1}" ] && export "${1}=${2}"; } function is_command_alias() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == alias ]]; _bashutils_restore_return ${?}; }
function set_defined() { [ -n "${!1}" ] && export "${1}=${2}"; } function is_command_keyword() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == keyword ]]; _bashutils_restore_return ${?}; }
function is_command_alias() { [ "$(type -t "${1}")" == "alias" ] && return 0 || return 1; } function is_command_function() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == function ]]; _bashutils_restore_return ${?}; }
function is_command_keyword() { [ "$(type -t "${1}")" == "keyword" ] && return 0 || return 1; } function is_command_builtin() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == builtin ]]; _bashutils_restore_return ${?}; }
function is_command_function() { [ "$(type -t "${1}")" == "function" ] && return 0 || return 1; } function is_command_file() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == file ]]; _bashutils_restore_return ${?}; }
function is_command_builtin() { [ "$(type -t "${1}")" == "builtin" ] && return 0 || return 1; } function is_command_defined() { _bashutils_reset_environment; [[ "$(type -t "${1}")" == "" ]]; _bashutils_restore_return ${?}; }
function is_command_file() { [ "$(type -t "${1}")" == "file" ] && return 0 || return 1; }
function is_command_defined() { [ "$(type -t "${1}")" == "" ] && return 0 || return 1; } # Variable definition
function set_undefined() { _bashutils_reset_environment; [ -z "${!1}" ] && export "${1}=${2}"; _bashutils_restore_environment; }
function set_defined() { _bashutils_reset_environment; [ -n "${!1}" ] && export "${1}=${2}"; _bashutils_restore_environment; }
# Initialize variables # Initialize variables
set_undefined BASHUTILS_LOGLEVEL 3 unset _BASHUTILS_ENVIRONMENT_PREVIOUS_OPTIONS
unset _BASHUTILS_ENVIRONMENT_PREVIOUS_PIPEFAIL
set_undefined "BASHUTILS_LOGLEVEL" "3"
################################ ################################
### BASHUTILS CODE ENDS HERE ### ### BASHUTILS CODE ENDS HERE ###
################################ ################################