56 lines
1.2 KiB
Bash
Executable File
56 lines
1.2 KiB
Bash
Executable File
#/usr/bin/env bash
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#######################################
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# Common setup. Init MacOS compatibility
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# variables.
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# Globals:
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# READLINK
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#######################################
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function common_setup
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{
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# On macOS, use GNU readlink from 'coreutils' package in Homebrew/MacPorts
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if [ "$(uname -s)" = "Darwin" ] ; then
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READLINK=greadlink
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else
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READLINK=readlink
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fi
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}
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#######################################
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# Error echo wrapper
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#######################################
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function error
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{
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echo "${0##*/}: ${1}" >&2
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}
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#######################################
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# Error then exit wrapper
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# Arguments:
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# string to print before exit
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# (optional) int error code
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#######################################
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function die
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{
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error "$1"
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exit "${2:--1}"
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}
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#######################################
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# Save bash options. Must be called
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# before a corresponding `restore_bash_options`.
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#######################################
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function save_bash_options
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{
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OLDSTATE=$(set +o)
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}
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#######################################
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# Restore bash options. Must be called
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# after a corresponding `save_bash_options`.
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#######################################
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function restore_bash_options
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{
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set +vx; eval "$OLDSTATE"
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}
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