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Merge branch 'force_set_var-v2' of ssh://github.com/TinCanTech/easy-rsa into TinCanTech-force_set_var-v2

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Signed-off-by: Richard T Bonhomme <tincantech@protonmail.com>
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Richard T Bonhomme 2023-08-05 17:17:36 +01:00
commit 2df4ef2016
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1 changed files with 23 additions and 7 deletions
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@ -5927,17 +5927,33 @@ Temporary directory does not exist:
# Sets '$1' as the value contained in '$2'
# and exports (may be blank)
set_var() {
[ "$#" = 0 ] && return
[ "$#" -lt 3 ] || die "set_var - excess input"
[ "$1" = "${1% *}" ] || die "set_var - input error"
eval "export \"$1\"=\"\${$1-$2}\""
[ -z "$*" ] && return
[ -z "$3" ] || \
user_error "set_var - excess input '$*'"
case "$1" in
*=*) user_error "set_var - var '$1'"
esac
eval "export \"$1\"=\"\${$1-$2}\"" && return
die "set_var - eval '$*'"
} #=> set_var()
# sanatize and set var
# nix.sh/win.sh/busybox.sh never return error from unset
# when an invalid variable name 'a=b' is used with a value
# to set, eg. 'c'; This causes EasyRSA to execute:
# eval "export a=b=c". 'set_var EASYRSA_PKI=pki' results in
# $EASYRSA_PKI being set to 'pki=pki-', without error!
# Guard against this possible user error with 'case'.
force_set_var() {
[ "$#" = 2 ] || die "force_set_var - input"
unset -v "$1" || die "force_set_var - unset"
set_var "$1" "$2" || die "force_set_var - set_var"
[ -z "$3" ] || \
user_error "force_set_var - excess input '$*'"
case "$1" in
*=*) user_error "force_set_var - var '$1'"
esac
# Guard unset with '|| die', just in case
unset -v "$1" || die "force_set_var - unset '$1'"
set_var "$1" "$2" && return
die "force_set_var - set_var '$*'"
} # => force_set_var()