46 lines
1.0 KiB
Bash
46 lines
1.0 KiB
Bash
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__CHECK_DEPENDENCIES() {
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local DEPENDENCY
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for DEPENDENCY in $*
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do
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__CHECK_DEPENDENCY $DEPENDENCY || ((__DEPENDENCY_ERROR+=1))
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done
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__CHECK_COREUTILS || ((__DEPENDENCY_ERROR+=$?))
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return $__DEPENDENCY_ERROR
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}
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__CHECK_DEPENDENCY() {
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local DEPENDENCY="$1"
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[ ! $DEPENDENCY ] && return 1
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command -v $DEPENDENCY >/dev/null 2>&1 || {
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__ERROR "'$1' required but not installed. $(__CREDITS $1)"
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return 1
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}
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}
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__CHECK_COREUTILS() {
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local COREUTILS=(awk find grep sed)
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local MISSING_DEPENDENCY_COUNT=0
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local NON_GNU_DEPENDENCY_COUNT=0
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local UTIL
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for UTIL in $(echo $COREUTILS)
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do
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__CHECK_DEPENDENCY $UTIL || { ((MISSING_DEPENDENCY_COUNT+=1)); continue; }
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$UTIL --version 2>&1 | grep -q 'GNU' || {
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__WARNING "non-GNU version of $UTIL detected"
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((NON_GNU_DEPENDENCY_COUNT+=1))
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}
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done
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[[ $NON_GNU_DEPENDENCY_COUNT -gt 0 ]] && {
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__WARNING 'scripts rely on GNU coreutils; functionality may be limited'
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__IS_MACOS && __REMINDER 'GNU coreutils can be installed and linked through Homebrew'
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}
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return $MISSING_DEPENDENCY_COUNT
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}
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