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[Fix] nvm_get_default_packages: use awk for more reliable file processing

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See db19450caa

Fixes #3382
This commit is contained in:
Jordan Harband 2024-07-28 10:02:08 -07:00
parent f439acda4a
commit 87a709741f
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GPG Key ID: 9F6A681E35EF8B56
2 changed files with 17 additions and 31 deletions
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46
nvm.sh
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@ -4436,37 +4436,23 @@ nvm() {
}
nvm_get_default_packages() {
local NVM_DEFAULT_PACKAGE_FILE="${NVM_DIR}/default-packages"
local NVM_DEFAULT_PACKAGE_FILE
NVM_DEFAULT_PACKAGE_FILE="${NVM_DIR}/default-packages"
if [ -f "${NVM_DEFAULT_PACKAGE_FILE}" ]; then
local DEFAULT_PACKAGES
DEFAULT_PACKAGES=''
# Read lines from $NVM_DIR/default-packages
local line
# ensure a trailing newline
WORK=$(mktemp -d) || exit $?
# shellcheck disable=SC2064
trap "command rm -rf '$WORK'" EXIT
# shellcheck disable=SC1003
sed -e '$a\' "${NVM_DEFAULT_PACKAGE_FILE}" > "${WORK}/default-packages"
while IFS=' ' read -r line; do
# Skip empty lines.
[ -n "${line-}" ] || continue
# Skip comment lines that begin with `#`.
[ "$(nvm_echo "${line}" | command cut -c1)" != "#" ] || continue
# Fail on lines that have multiple space-separated words
case $line in
*\ *)
nvm_err "Only one package per line is allowed in the ${NVM_DIR}/default-packages file. Please remove any lines with multiple space-separated values."
return 1
;;
esac
DEFAULT_PACKAGES="${DEFAULT_PACKAGES}${line} "
done < "${WORK}/default-packages"
echo "${DEFAULT_PACKAGES}" | command xargs
command awk -v filename="${NVM_DEFAULT_PACKAGE_FILE}" '
/^[[:space:]]*#/ { next } # Skip lines that begin with #
/^[[:space:]]*$/ { next } # Skip empty lines
/[[:space:]]/ && !/^[[:space:]]*#/ {
print "Only one package per line is allowed in `" filename "`. Please remove any lines with multiple space-separated values." > "/dev/stderr"
err = 1
exit 1
}
{
if (NR > 1 && !prev_space) printf " "
printf "%s", $0
prev_space = 0
}
' "${NVM_DEFAULT_PACKAGE_FILE}"
fi
}

2
test/fast/Unit tests/nvm_get_default_packages
View File

@ -74,7 +74,7 @@ rimraf
EOF
DEFAULT_PKGS="$(nvm_get_default_packages 2>&1 >/dev/null)"
EXPECTED_PKGS="Only one package per line is allowed in the $FILE file. Please remove any lines with multiple space-separated values."
EXPECTED_PKGS="Only one package per line is allowed in \`${FILE}\`. Please remove any lines with multiple space-separated values."
[ "${DEFAULT_PKGS}" = "${EXPECTED_PKGS}" ] || die "4: expected default packages >${EXPECTED_PKGS}<; got >${DEFAULT_PKGS}<"
cleanup