scwrypts/zsh/lib/utils/dependencies.zsh
yage e199e9bf91 v3.5.0
=====================================================================

--- Changes ------------------------------

- AWS (the cli wrapper) now checks for it's required variables *on run*.
  This accomodates scwrypts which may need to run in multiple regions,
  but make the downstream scwrypt responsible for adding AWS_REGION to
  the REQUIRED_ENV list!

- Got rid of all kinds of hackiness surrounding postgres password evals
  between both the postgres library and the rds library

--- Bug Fixes ----------------------------

- scwrypts --update now pulls tags for proper versioning
2023-08-24 17:11:34 -06:00

45 lines
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__CHECK_DEPENDENCIES() {
local DEP ERROR=0
[ ! $E ] && E=ERROR
DEPENDENCIES=($(echo $DEPENDENCIES | sed 's/ \+/\n/g' | sort -u))
for DEP in ${DEPENDENCIES[@]}; do __CHECK_DEPENDENCY $DEP || ((ERROR+=1)); done
__CHECK_COREUTILS || ((ERROR+=$?))
return $ERROR
}
__CHECK_DEPENDENCY() {
local DEPENDENCY="$1"
[ ! $DEPENDENCY ] && return 1
command -v $DEPENDENCY >/dev/null 2>&1 || {
$E "application '$1' "$([[ $OPTIONAL -eq 1 ]] && echo preferred || echo required)" but not available on PATH $(__CREDITS $1)"
return 1
}
}
__CHECK_COREUTILS() {
local COREUTILS=(awk find grep sed readlink)
local MISSING_DEPENDENCY_COUNT=0
local NON_GNU_DEPENDENCY_COUNT=0
local UTIL
for UTIL in $(echo $COREUTILS)
do
__CHECK_DEPENDENCY $UTIL || { ((MISSING_DEPENDENCY_COUNT+=1)); continue; }
$UTIL --version 2>&1 | grep -q 'GNU' || {
WARNING "non-GNU version of $UTIL detected"
((NON_GNU_DEPENDENCY_COUNT+=1))
}
done
[[ $NON_GNU_DEPENDENCY_COUNT -gt 0 ]] && {
WARNING 'scripts rely on GNU coreutils; functionality may be limited'
IS_MACOS && REMINDER 'GNU coreutils can be installed and linked through Homebrew'
}
return $MISSING_DEPENDENCY_COUNT
}