[perf] `nvm_print_versions`: re-implement using awk
reducing `nvm ls-remote` from almost 20s to below 2s. Signed-off-by: ryenus <ryenus@gmail.com>
ryenus
Jordan Harband
parent
7c929f8742
commit
5e9791c4f8
128
nvm.sh
128
nvm.sh
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@ -1642,12 +1642,8 @@ nvm_get_checksum() {
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}
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nvm_print_versions() {
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local VERSION
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local LTS
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local FORMAT
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local NVM_CURRENT
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local NVM_LATEST_LTS_COLOR
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local NVM_OLD_LTS_COLOR
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NVM_CURRENT=$(nvm_ls_current)
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local INSTALLED_COLOR
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local SYSTEM_COLOR
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@ -1655,6 +1651,7 @@ nvm_print_versions() {
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local NOT_INSTALLED_COLOR
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local DEFAULT_COLOR
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local LTS_COLOR
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local NVM_HAS_COLORS
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INSTALLED_COLOR=$(nvm_get_colors 1)
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SYSTEM_COLOR=$(nvm_get_colors 2)
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@ -1663,67 +1660,72 @@ nvm_print_versions() {
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DEFAULT_COLOR=$(nvm_get_colors 5)
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LTS_COLOR=$(nvm_get_colors 6)
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NVM_CURRENT=$(nvm_ls_current)
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NVM_LATEST_LTS_COLOR=$(nvm_echo "${CURRENT_COLOR}" | command tr '0;' '1;')
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NVM_OLD_LTS_COLOR="${DEFAULT_COLOR}"
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local NVM_HAS_COLORS
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if [ -z "${NVM_NO_COLORS-}" ] && nvm_has_colors; then
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NVM_HAS_COLORS=1
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fi
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local LTS_LENGTH
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local LTS_FORMAT
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nvm_echo "${1-}" \
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| command sed '1!G;h;$!d' \
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| command awk '{ if ($2 && $3 && $3 == "*") { print $1, "(Latest LTS: " $2 ")" } else if ($2) { print $1, "(LTS: " $2 ")" } else { print $1 } }' \
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| command sed '1!G;h;$!d' \
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| while read -r VERSION_LINE; do
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VERSION="${VERSION_LINE%% *}"
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LTS="${VERSION_LINE#* }"
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FORMAT='%15s'
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if [ "_${VERSION}" = "_${NVM_CURRENT}" ]; then
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if [ "${NVM_HAS_COLORS-}" = '1' ]; then
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FORMAT="\033[${CURRENT_COLOR}-> %12s\033[0m"
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else
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FORMAT='-> %12s *'
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fi
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elif [ "${VERSION}" = "system" ]; then
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if [ "${NVM_HAS_COLORS-}" = '1' ]; then
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FORMAT="\033[${SYSTEM_COLOR}%15s\033[0m"
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else
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FORMAT='%15s *'
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fi
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elif nvm_is_version_installed "${VERSION}"; then
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if [ "${NVM_HAS_COLORS-}" = '1' ]; then
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FORMAT="\033[${INSTALLED_COLOR}%15s\033[0m"
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else
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FORMAT='%15s *'
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fi
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fi
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if [ "${LTS}" != "${VERSION}" ]; then
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case "${LTS}" in
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*Latest*)
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LTS="${LTS##Latest }"
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LTS_LENGTH="${#LTS}"
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if [ "${NVM_HAS_COLORS-}" = '1' ]; then
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LTS_FORMAT=" \\033[${NVM_LATEST_LTS_COLOR}%${LTS_LENGTH}s\\033[0m"
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else
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LTS_FORMAT=" %${LTS_LENGTH}s"
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fi
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;;
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*)
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LTS_LENGTH="${#LTS}"
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if [ "${NVM_HAS_COLORS-}" = '1' ]; then
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LTS_FORMAT=" \\033[${NVM_OLD_LTS_COLOR}%${LTS_LENGTH}s\\033[0m"
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else
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LTS_FORMAT=" %${LTS_LENGTH}s"
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fi
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;;
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esac
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command printf -- "${FORMAT}${LTS_FORMAT}\\n" "${VERSION}" " ${LTS}"
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else
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command printf -- "${FORMAT}\\n" "${VERSION}"
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fi
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done
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command awk \
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-v remote_versions="$(printf '%s' "${1-}" | tr '\n' '|')" \
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-v installed_versions="$(nvm_ls | tr '\n' '|')" -v current="$NVM_CURRENT" \
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-v installed_color="$INSTALLED_COLOR" -v system_color="$SYSTEM_COLOR" \
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-v current_color="$CURRENT_COLOR" -v default_color="$DEFAULT_COLOR" \
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-v old_lts_color="$DEFAULT_COLOR" -v has_colors="$NVM_HAS_COLORS" '
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BEGIN {
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fmt_installed = has_colors ? ("\033[" installed_color "%15s\033[0m") : "%15s *";
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fmt_system = has_colors ? ("\033[" system_color "%15s\033[0m") : "%15s *";
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fmt_current = has_colors ? ("\033[" current_color "->%13s\033[0m") : "->%13s *";
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latest_lts_color = current_color;
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sub(/0;/, "1;", latest_lts_color);
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fmt_latest_lts = has_colors ? ("\033[" latest_lts_color " (Latest LTS: %s)\033[0m") : " (Latest LTS: %s)";
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fmt_old_lts = has_colors ? ("\033[" old_lts_color " (LTS: %s)\033[0m") : " (LTS: %s)";
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split(remote_versions, lines, "|");
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split(installed_versions, installed, "|");
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rows = length(lines);
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for (n = 1; n <= rows; n++) {
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split(lines[n], fields, "[[:blank:]]+");
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cols = length(fields);
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version = fields[1];
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is_installed = 0;
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for (i in installed) {
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if (version == installed[i]) {
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is_installed = 1;
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break;
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}
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}
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fmt_version = "%15s";
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if (version == current) {
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fmt_version = fmt_current;
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} else if (version == "system") {
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fmt_version = fmt_system;
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} else if (is_installed) {
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fmt_version = fmt_installed;
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}
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padding = (!has_colors && is_installed) ? "" : " ";
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if (cols == 1) {
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formatted = sprintf(fmt_version, version);
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} else if (cols == 2) {
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formatted = sprintf((fmt_version padding fmt_old_lts), version, fields[2]);
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} else if (cols == 3 && fields[3] == "*") {
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formatted = sprintf((fmt_version padding fmt_latest_lts), version, fields[2]);
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}
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output[n] = formatted;
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}
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for (n = 1; n <= rows; n++) {
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print output[n]
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}
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exit
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}'
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}
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nvm_validate_implicit_alias() {
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