85 lines
2.2 KiB
Bash
85 lines
2.2 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
# Try / catch in bash
|
|
#
|
|
# ````
|
|
# #!/bin/bash
|
|
# export AnException=100
|
|
# export AnotherException=101
|
|
#
|
|
# # start with a try
|
|
# try
|
|
# ( # open a subshell !!!
|
|
# echo "do something"
|
|
# [ someErrorCondition ] && throw $AnException
|
|
#
|
|
# echo "do something more"
|
|
# executeCommandThatMightFail || throw $AnotherException
|
|
#
|
|
# throwErrors # automaticatly end the try block, if command-result is non-null
|
|
# echo "now on to something completely different"
|
|
# executeCommandThatMightFail
|
|
#
|
|
# echo "it's a wonder we came so far"
|
|
# executeCommandThatFailsForSure || true # ignore a single failing command
|
|
#
|
|
# ignoreErrors # ignore failures of commands until further notice
|
|
# executeCommand1ThatFailsForSure
|
|
# local result = $(executeCommand2ThatFailsForSure)
|
|
# [ result != "expected error" ] && throw $AnException # ok, if it's not an expected error, we want to bail out!
|
|
# executeCommand3ThatFailsForSure
|
|
#
|
|
# # make sure to clear $ex_code, otherwise catch * will run
|
|
# # echo "finished" does the trick for this example
|
|
# echo "finished"
|
|
# )
|
|
# # directly after closing the subshell you need to connect a group to the catch using ||
|
|
# catch || {
|
|
# # now you can handle
|
|
# case $ex_code in
|
|
# $AnException)
|
|
# echo "AnException was thrown"
|
|
# ;;
|
|
# $AnotherException)
|
|
# echo "AnotherException was thrown"
|
|
# ;;
|
|
# *)
|
|
# echo "An unexpected exception was thrown"
|
|
# throw $ex_code # you can rethrow the "exception" causing the script to exit if not caught
|
|
# ;;
|
|
# esac
|
|
# }
|
|
# ```
|
|
# Source: https://stackoverflow.com/a/25180186`
|
|
|
|
# shellcheck disable=SC2034
|
|
Logger="${BASH_SOURCE[0]}../log"
|
|
|
|
# @description Turn on fail on errors mode
|
|
function try() {
|
|
[[ $- = *e* ]]; SAVED_OPT_E=$?
|
|
set +e
|
|
}
|
|
|
|
# @description Turn on fail on errors mode
|
|
function throw() {
|
|
exit "$1"
|
|
}
|
|
|
|
# @description Turn on fail on errors mode
|
|
function catch() {
|
|
export ex_code=$?
|
|
# shellcheck disable=SC2004
|
|
(( $SAVED_OPT_E )) && set +e
|
|
return $ex_code
|
|
}
|
|
|
|
# @description Turn on fail on errors mode
|
|
function throwErrors() {
|
|
set -e
|
|
}
|
|
|
|
# @description Do not fail on errors mode
|
|
function ignoreErrors() {
|
|
set +e
|
|
}
|