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export: avoid error on unbound variable

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I the shell has `set -u` (to abort on unbound variable), sourcing
export.sh currently fails when IDF_EXPORT_QUIET or IDF_PATH is not set:
> /path/to/esp-idf/export.sh:16: IDF_EXPORT_QUIET: unbound variable

This commit sets a default empty value to those variable, as done
in 16731833fb (which forgot IDF_PATH as it's usually set, the other
variable landed later in the file).
This commit is contained in:
Marc Finet 2023-03-07 13:26:04 +01:00 committed by Marek Fiala
parent 7cfc1a747f
commit 2a3cdb090f
1 changed files with 2 additions and 2 deletions
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4
export.sh
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@ -13,7 +13,7 @@ __realpath() {
__verbose() {
[ -n "${IDF_EXPORT_QUIET}" ] && return
[ -n "${IDF_EXPORT_QUIET-}" ] && return
echo "$@"
}
@ -30,7 +30,7 @@ __main() {
return 1
fi
if [ -z "${IDF_PATH}" ]
if [ -z "${IDF_PATH-}" ]
then
# IDF_PATH not set in the environment.
# If using bash or zsh, try to guess IDF_PATH from script location.