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[Fix] handle unbound shell variables.

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Fixes #868.
This commit is contained in:
Jordan Harband
2016-01-17 15:12:02 -08:00
parent 1e1a005a53
commit 00a8b36b78
1 changed files with 38 additions and 27 deletions
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45
nvm.sh
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@@ -68,13 +68,16 @@ nvm_print_npm_version() {
# Make zsh glob matching behave same as bash
# This fixes the "zsh: no matches found" errors
if [ -z "${NVM_CD_FLAGS-}"]; then
export NVM_CD_FLAGS=''
fi
if nvm_has "unsetopt"; then
unsetopt nomatch 2>/dev/null
NVM_CD_FLAGS="-q"
fi
# Auto detect the NVM_DIR when not set
if [ -z "$NVM_DIR" ]; then
if [ -z "${NVM_DIR-}" ]; then
if [ -n "$BASH_SOURCE" ]; then
NVM_SCRIPT_SOURCE="${BASH_SOURCE[0]}"
fi
@@ -85,7 +88,7 @@ unset NVM_SCRIPT_SOURCE 2> /dev/null
# Setup mirror location if not already set
if [ -z "$NVM_NODEJS_ORG_MIRROR" ]; then
if [ -z "${NVM_NODEJS_ORG_MIRROR-}" ]; then
export NVM_NODEJS_ORG_MIRROR="https://nodejs.org/dist"
fi
@@ -529,7 +532,7 @@ nvm_strip_iojs_prefix() {
nvm_ls() {
local PATTERN
PATTERN="$1"
PATTERN="${1-}"
local VERSIONS
VERSIONS=''
if [ "$PATTERN" = 'current' ]; then
@@ -659,7 +662,7 @@ nvm_ls() {
fi
fi
if [ "$NVM_ADD_SYSTEM" = true ]; then
if [ "${NVM_ADD_SYSTEM-}" = true ]; then
if [ -z "$PATTERN" ] || [ "_$PATTERN" = "_v" ]; then
VERSIONS="$VERSIONS$(command printf '\n%s' 'system')"
elif [ "$PATTERN" = 'system' ]; then
@@ -700,6 +703,7 @@ nvm_ls_remote_index_tab() {
local TYPE
TYPE="$1"
local PREFIX
PREFIX=''
case "$TYPE-$2" in
iojs-std) PREFIX="$(nvm_iojs_prefix)-" ;;
node-std) PREFIX='' ;;
@@ -835,7 +839,7 @@ nvm_print_implicit_alias() {
local NVM_ADD_PREFIX_COMMAND
local LAST_TWO
case "$NVM_IMPLICIT" in
"$NVM_IOJS_PREFIX" | "$NVM_IOJS_RC_PREFIX")
"$NVM_IOJS_PREFIX")
NVM_COMMAND="nvm_ls_remote_iojs"
NVM_ADD_PREFIX_COMMAND="nvm_add_iojs_prefix"
if [ "_$1" = "_local" ]; then
@@ -1146,7 +1150,7 @@ nvm_install_node_binary() {
local REINSTALL_PACKAGES_FROM
REINSTALL_PACKAGES_FROM="$2"
if nvm_is_iojs_version "$PREFIXED_VERSION"; then
if nvm_is_iojs_version "$VERSION"; then
echo 'nvm_install_node_binary does not allow an iojs-prefixed version.' >&2
return 10
fi
@@ -1201,11 +1205,11 @@ nvm_install_node_binary() {
}
nvm_get_make_jobs() {
if nvm_is_natural_num "$1"; then
if nvm_is_natural_num "${1-}"; then
NVM_MAKE_JOBS="$1"
echo "number of \`make\` jobs: $NVM_MAKE_JOBS"
return
elif [ -n "$1" ]; then
elif [ -n "${1-}" ]; then
unset NVM_MAKE_JOBS
echo >&2 "$1 is invalid for number of \`make\` jobs, must be a natural number"
fi
@@ -1290,9 +1294,9 @@ nvm_install_node_source() {
command tar -xzf "$tmptarball" -C "$tmpdir" && \
cd "$tmpdir/node-$VERSION" && \
./configure --prefix="$VERSION_PATH" $ADDITIONAL_PARAMETERS && \
$make -j $NVM_MAKE_JOBS $MAKE_CXX && \
$make -j $NVM_MAKE_JOBS ${MAKE_CXX-} && \
command rm -f "$VERSION_PATH" 2>/dev/null && \
$make -j $NVM_MAKE_JOBS $MAKE_CXX install
$make -j $NVM_MAKE_JOBS ${MAKE_CXX-} install
)
then
if ! nvm_has "npm" ; then
@@ -1371,14 +1375,14 @@ nvm_die_on_prefix() {
return 2
fi
if [ -n "$PREFIX" ] && ! (nvm_tree_contains_path "$NVM_DIR" "$PREFIX" >/dev/null 2>&1); then
if [ -n "${PREFIX-}" ] && ! (nvm_tree_contains_path "$NVM_DIR" "$PREFIX" >/dev/null 2>&1); then
nvm deactivate >/dev/null 2>&1
echo >&2 "nvm is not compatible with the \"PREFIX\" environment variable: currently set to \"$PREFIX\""
echo >&2 "Run \`unset PREFIX\` to unset it."
return 3
fi
if [ -n "$NPM_CONFIG_PREFIX" ] && ! (nvm_tree_contains_path "$NVM_DIR" "$NPM_CONFIG_PREFIX" >/dev/null 2>&1); then
if [ -n "${NPM_CONFIG_PREFIX-}" ] && ! (nvm_tree_contains_path "$NVM_DIR" "$NPM_CONFIG_PREFIX" >/dev/null 2>&1); then
nvm deactivate >/dev/null 2>&1
echo >&2 "nvm is not compatible with the \"NPM_CONFIG_PREFIX\" environment variable: currently set to \"$NPM_CONFIG_PREFIX\""
echo >&2 "Run \`unset NPM_CONFIG_PREFIX\` to unset it."
@@ -1702,6 +1706,9 @@ nvm() {
fi
fi
if [ "$NVM_INSTALL_SUCCESS" != true ]; then
if [ -z "${NVM_MAKE_JOBS-}" ]; then
nvm_get_make_jobs
fi
if [ "$NVM_IOJS" != true ] && [ "$NVM_NODE_MERGED" != true ]; then
if nvm_install_node_source "$VERSION" "$NVM_MAKE_JOBS" "$ADDITIONAL_PARAMETERS"; then
NVM_INSTALL_SUCCESS=true
@@ -1794,6 +1801,7 @@ nvm() {
echo "$NVM_DIR/*/bin removed from \$PATH"
fi
if [ -n "${MANPATH-}" ]; then
NEWPATH="$(nvm_strip_path "$MANPATH" "/share/man")"
if [ "_$MANPATH" = "_$NEWPATH" ]; then
echo "Could not find $NVM_DIR/*/share/man in \$MANPATH" >&2
@@ -1801,12 +1809,15 @@ nvm() {
export MANPATH="$NEWPATH"
echo "$NVM_DIR/*/share/man removed from \$MANPATH"
fi
fi
if [ -n "${NODE_PATH-}" ]; then
NEWPATH="$(nvm_strip_path "$NODE_PATH" "/lib/node_modules")"
if [ "_$NODE_PATH" != "_$NEWPATH" ]; then
export NODE_PATH="$NEWPATH"
echo "$NVM_DIR/*/lib/node_modules removed from \$NODE_PATH"
fi
fi
;;
"use" )
local PROVIDED_VERSION
@@ -1898,7 +1909,7 @@ nvm() {
hash -r
export NVM_PATH="$NVM_VERSION_DIR/lib/node"
export NVM_BIN="$NVM_VERSION_DIR/bin"
if [ "$NVM_SYMLINK_CURRENT" = true ]; then
if [ "${NVM_SYMLINK_CURRENT-}" = true ]; then
command rm -f "$NVM_DIR/current" && ln -s "$NVM_VERSION_DIR" "$NVM_DIR/current"
fi
local NVM_USE_OUTPUT
@@ -2057,7 +2068,7 @@ nvm() {
"ls" | "list" )
local NVM_LS_OUTPUT
local NVM_LS_EXIT_CODE
NVM_LS_OUTPUT=$(nvm_ls "$2")
NVM_LS_OUTPUT=$(nvm_ls "${2-}")
NVM_LS_EXIT_CODE=$?
nvm_print_versions "$NVM_LS_OUTPUT"
if [ $# -eq 1 ]; then
@@ -2067,7 +2078,7 @@ nvm() {
;;
"ls-remote" | "list-remote" )
local PATTERN
PATTERN="$2"
PATTERN="${2-}"
local NVM_IOJS_PREFIX
NVM_IOJS_PREFIX="$(nvm_iojs_prefix)"
local NVM_NODE_PREFIX
@@ -2172,7 +2183,7 @@ $NVM_LS_REMOTE_POST_MERGED_OUTPUT" | command grep -v "N/A" | command sed '/^$/d'
command mkdir -p "$NVM_ALIAS_DIR"
if [ $# -le 2 ]; then
local DEST
for ALIAS_PATH in "$NVM_ALIAS_DIR"/"$2"*; do
for ALIAS_PATH in "$NVM_ALIAS_DIR"/"${2-}"*; do
ALIAS="$(command basename "$ALIAS_PATH")"
DEST="$(nvm_alias "$ALIAS" 2> /dev/null)"
if [ -n "$DEST" ]; then
@@ -2202,7 +2213,7 @@ $NVM_LS_REMOTE_POST_MERGED_OUTPUT" | command grep -v "N/A" | command sed '/^$/d'
done
return
fi
if [ -z "$3" ]; then
if [ -z "${3-}" ]; then
command rm -f "$NVM_ALIAS_DIR/$2"
echo "$2 -> *poof*"
return