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create safeguard in test_writable 

This prevents attempting to create files in `/` if a path is not given, instead failing early.
This commit is contained in:
aarondill 2023-07-05 14:18:09 -05:00
parent e011abae7b
commit b0ab15c6da
1 changed files with 5 additions and 1 deletions
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6
install.sh
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@ -468,7 +468,11 @@ is_host_amd64_elf() {
# Test if a location is writeable by trying to write to it. Windows does not let # Test if a location is writeable by trying to write to it. Windows does not let
# you test writeability other than by writing: https://stackoverflow.com/q/1999988 # you test writeability other than by writing: https://stackoverflow.com/q/1999988
test_writeable() { test_writeable() {
path="${1:-}/test.txt" if [ -z "${1-}" ]; then
# There's a bug if this is reached.
abort "BUG: test_writeable requires a path to test."
fi
path="$1/test.txt"
if touch "${path}" 2>/dev/null; then if touch "${path}" 2>/dev/null; then
rm "${path}" rm "${path}"
return 0 return 0