wip

Fixes #1080. Fixes #3386.

.travis.yml

@@ -8,6 +8,12 @@ addons:
     #  - gcc-4.8
     #  - g++-4.8
 
+# https://gist.github.com/iedemam/9830045
+git:
+  submodules: false
+
+group: previous
+
 cache:
   ccache: true
   directories:
@@ -16,6 +22,11 @@ cache:
 before_install:
   - sudo sed -i 's/mozilla\/DST_Root_CA_X3.crt/!mozilla\/DST_Root_CA_X3.crt/g' /etc/ca-certificates.conf
   - sudo update-ca-certificates -f
+
+  # https://gist.github.com/iedemam/9830045
+  - sed -i 's/git@github.com:/https:\/\/github.com\//' .gitmodules
+  - git submodule update --init --recursive
+
   - $SHELL --version 2> /dev/null || dpkg -s $SHELL 2> /dev/null || which $SHELL
   - curl --version
   - wget --version
@@ -23,7 +34,7 @@ before_install:
   - zsh  --version
   - dpkg -s dash | grep ^Version | awk '{print $2}'
   # install python
-  - pyenv install 2.7.18
+  - pyenv local 2.7.18 || pyenv install 2.7.18
   - pyenv local 2.7.18 || echo 'pyenv failed'
   - python -V
 install:

nvm.sh

@@ -765,6 +765,11 @@ nvm_remote_versions() {
       NVM_FLAVOR="${NVM_NODE_PREFIX}"
       unset PATTERN
     ;;
+    *)
+      if [ "${NVM_IOJS_ORG_MIRROR-x}" = '' ]; then
+        NVM_FLAVOR="${NVM_NODE_PREFIX}"
+      fi
+    ;;
   esac
 
   if nvm_validate_implicit_alias "${PATTERN-}" 2>/dev/null; then

test/common.sh

@@ -102,104 +102,146 @@ watch() {
   return $EXIT_CODE
 }
 
-parse_json() {
-  local json
-  json="$1"
-  local key
-  key=""
-  local value
-  value=""
-  local output
-  output=""
-  local in_key
-  in_key=0
-  local in_value
-  in_value=0
-  local in_string
-  in_string=0
-  local escaped
-  escaped=0
-  local buffer
-  buffer=""
-  local char
-  local len
-  len=${#json}
-  local arr_index
-  arr_index=0
-  local in_array
-  in_array=0
 
-  for ((i = 0; i < len; i++)); do
-    char="${json:i:1}"
-
-    if [ "$in_string" -eq 1 ]; then
-      if [ "$escaped" -eq 1 ]; then
-        buffer="$buffer$char"
-        escaped=0
-      elif [ "$char" = "\\" ]; then
-        escaped=1
-      elif [ "$char" = "\"" ]; then
-        in_string=0
-        if [ "$in_key" -eq 1 ]; then
-          key="$buffer"
-          buffer=""
-          in_key=0
-        elif [ "$in_value" -eq 1 ]; then
-          value="$buffer"
-          buffer=""
-          output="$output$key=\"$value\"\n"
-          in_value=0
-        elif [ "$in_array" -eq 1 ]; then
-          value="$buffer"
-          buffer=""
-          output="$output$arr_index=\"$value\"\n"
-          arr_index=$((arr_index + 1))
-        fi
-      else
-        buffer="$buffer$char"
-      fi
-      continue
-    fi
-
-    case "$char" in
-      "\"")
-        in_string=1
-        buffer=""
-        if [ "$in_value" -eq 0 ] && [ "$in_array" -eq 0 ]; then
-          in_key=1
-        fi
-        ;;
-      ":")
-        in_value=1
-        ;;
-      ",")
-        if [ "$in_value" -eq 1 ]; then
-          in_value=0
-        fi
-        ;;
-      "[")
-        in_array=1
-        ;;
-      "]")
-        in_array=0
-        ;;
-      "{" | "}")
-        ;;
-      *)
-        if [ "$in_value" -eq 1 ] && [ "$char" != " " ] && [ "$char" != "\n" ] && [ "$char" != "\t" ]; then
-          buffer="$buffer$char"
-        fi
-        ;;
-    esac
-  done
-
-  printf "%b" "$output"
+# JSON parsing from https://gist.github.com/assaf/ee377a186371e2e269a7
+nvm_json_throw() {
+  nvm_err "$*"
+  exit 1
 }
 
-extract_value() {
-  local key
-  key="$1"
-  local parsed
-  parsed="$2"
-  echo "$parsed" | grep "^$key=" | cut -d'=' -f2 | tr -d '"'
+nvm_json_awk_egrep() {
+  local pattern_string
+  pattern_string="${1}"
+
+  awk '{
+    while ($0) {
+      start=match($0, pattern);
+      token=substr($0, start, RLENGTH);
+      print token;
+      $0=substr($0, start+RLENGTH);
+    }
+  }' "pattern=${pattern_string}"
+}
+
+nvm_json_tokenize() {
+  local GREP
+  GREP='grep -Eao'
+
+  local ESCAPE
+  local CHAR
+
+  # if echo "test string" | grep -Eo "test" > /dev/null 2>&1; then
+  #   ESCAPE='(\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
+  #   CHAR='[^[:cntrl:]"\\]'
+  # else
+    GREP=nvm_json_awk_egrep
+    ESCAPE='(\\\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
+    CHAR='[^[:cntrl:]"\\\\]'
+  # fi
+
+  local STRING
+  STRING="\"${CHAR}*(${ESCAPE}${CHAR}*)*\""
+  local NUMBER
+  NUMBER='-?(0|[1-9][0-9]*)([.][0-9]*)?([eE][+-]?[0-9]*)?'
+  local KEYWORD
+  KEYWORD='null|false|true'
+  local SPACE
+  SPACE='[[:space:]]+'
+
+  $GREP "${STRING}|${NUMBER}|${KEYWORD}|${SPACE}|." | TERM=dumb grep -Ev "^${SPACE}$"
+}
+
+_json_parse_array() {
+  local index=0
+  local ary=''
+  read -r token
+  case "$token" in
+    ']') ;;
+    *)
+      while :; do
+        _json_parse_value "${1}" "${index}"
+        index=$((index+1))
+        ary="${ary}${value}"
+        read -r token
+        case "${token}" in
+          ']') break ;;
+          ',') ary="${ary}," ;;
+          *) nvm_json_throw "EXPECTED , or ] GOT ${token:-EOF}" ;;
+        esac
+        read -r token
+      done
+      ;;
+  esac
+  :
+}
+
+_json_parse_object() {
+  local key
+  local obj=''
+  read -r token
+  case "$token" in
+    '}') ;;
+    *)
+      while :; do
+        case "${token}" in
+          '"'*'"') key="${token}" ;;
+          *) nvm_json_throw "EXPECTED string GOT ${token:-EOF}" ;;
+        esac
+        read -r token
+        case "${token}" in
+          ':') ;;
+          *) nvm_json_throw "EXPECTED : GOT ${token:-EOF}" ;;
+        esac
+        read -r token
+        _json_parse_value "${1}" "${key}"
+        obj="${obj}${key}:${value}"
+        read -r token
+        case "${token}" in
+          '}') break ;;
+          ',') obj="${obj}," ;;
+          *) nvm_json_throw "EXPECTED , or } GOT ${token:-EOF}" ;;
+        esac
+        read -r token
+      done
+    ;;
+  esac
+  :
+}
+
+_json_parse_value() {
+  local jpath="${1:+$1,}$2"
+  local isleaf=0
+  local isempty=0
+  local print=0
+
+  case "$token" in
+    '{') _json_parse_object "${jpath}" ;;
+    '[') _json_parse_array  "${jpath}" ;;
+    # At this point, the only valid single-character tokens are digits.
+    ''|[!0-9]) nvm_json_throw "EXPECTED value GOT >${token:-EOF}<" ;;
+    *)
+      value=$token
+      isleaf=1
+      [ "${value}" = '""' ] && isempty=1
+    ;;
+  esac
+
+  [ "${value}" = '' ] && return
+  [ "${isleaf}" -eq 1 ] && [ $isempty -eq 0 ] && print=1
+  [ "${print}" -eq 1 ] && printf "[%s]\t%s\n" "${jpath}" "${value}"
+  :
+}
+
+_json_parse() {
+  read -r token
+  _json_parse_value
+  read -r token
+  case "${token}" in
+    '') ;;
+    *) nvm_json_throw "EXPECTED EOF GOT >${token}<" ;;
+  esac
+}
+
+nvm_json_extract() {
+  nvm_json_tokenize | _json_parse | grep -e "${1}" | awk '{print $2 $3}'
 }

test/fast/Unit tests/nvm_process_nvmrc

@@ -14,7 +14,7 @@ for f in ../../../test/fixtures/nvmrc/test/fixtures/valid/*; do
   STDOUT="$(nvm_process_nvmrc $f/.nvmrc 2>/dev/null)"
   EXIT_CODE="$(nvm_process_nvmrc $f/.nvmrc >/dev/null 2>/dev/null; echo $?)"
 
-  EXPECTED="$(extract_value node "$(parse_json "$(cat "$f/expected.json")")")"
+  EXPECTED="$(nvm_json_extract node < "${f}/expected.json" | tr -d '"')"
 
   [ "${EXIT_CODE}" = "0" ] || die "$(basename "${f}"): expected exit code of 0 but got ${EXIT_CODE}"
 
@@ -26,7 +26,7 @@ for f in ../../../test/fixtures/nvmrc/test/fixtures/invalid/*; do
   STDERR="$(nvm_process_nvmrc $f/.nvmrc 2>&1 >/dev/null | awk '{if(NR > 8) print $0}' | strip_colors)"
   EXIT_CODE="$(nvm_process_nvmrc $f/.nvmrc >/dev/null 2>/dev/null; echo $?)"
 
-  EXPECTED="$(parse_json "$(cat "$f/expected.json")" | sed 's/^[0-9]*="//;s/"$//')"
+  EXPECTED="$(nvm_json_extract < "${f}/expected.json" | tr -d '"')"
 
   [ "${EXIT_CODE}" != "0" ] || die "$(basename "${f}"): expected exit code of 'not 0' but got ${EXIT_CODE}"
 

test/fast/Unit tests/nvm_remote_versions

@@ -3,7 +3,7 @@
 die () { echo "$@" ; cleanup ; exit 1; }
 
 cleanup() {
-  unset -f nvm_ls_remote nvm_ls_remote_iojs
+  unset -f nvm_ls_remote nvm_ls_remote_iojs nvm_ls_remote_node NVM_IOJS_ORG_MIRROR
 }
 
 \. ../../../nvm.sh
@@ -11,67 +11,72 @@ cleanup() {
 OUTPUT="$(nvm_remote_versions stable 2>&1)"
 EXPECTED_OUTPUT="Implicit aliases are not supported in nvm_remote_versions."
 EXIT_CODE="$(nvm_remote_versions stable >/dev/null 2>&1; echo $?)"
-[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "implicit alias 'stable' did not error out with correct message, got $OUTPUT"
-[ "_$EXIT_CODE" = "_1" ] || die "implicit alias 'stable' did not exit with code 1, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "implicit alias 'stable' did not error out with correct message, got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_1' ] || die "implicit alias 'stable' did not exit with code 1, got ${EXIT_CODE}"
 
 OUTPUT="$(nvm_remote_versions unstable 2>&1)"
 EXPECTED_OUTPUT="Implicit aliases are not supported in nvm_remote_versions."
 EXIT_CODE="$(nvm_remote_versions unstable >/dev/null 2>&1; echo $?)"
-[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "implicit alias 'unstable' did not error out with correct message, got $OUTPUT"
-[ "_$EXIT_CODE" = "_1" ] || die "implicit alias 'unstable' did not exit with code 1, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "implicit alias 'unstable' did not error out with correct message, got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_1' ] || die "implicit alias 'unstable' did not exit with code 1, got ${EXIT_CODE}"
 
 nvm_ls_remote() {
   echo "N/A"
 }
 OUTPUT="$(nvm_remote_versions foo)"
 EXIT_CODE="$(nvm_remote_versions foo >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_N/A" ] || die "nonexistent version did not report N/A"
-[ "_$EXIT_CODE" = "_3" ] || die "nonexistent version did not exit with code 3, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_N/A" ] || die "nonexistent version did not report N/A"
+[ "_${EXIT_CODE}" = '_3' ] || die "nonexistent version did not exit with code 3, got ${EXIT_CODE}"
 
 nvm_ls_remote_iojs() {
   echo "N/A"
 }
 OUTPUT="$(nvm_remote_versions iojs-foo)"
 EXIT_CODE="$(nvm_remote_versions iojs-foo >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_N/A" ] || die "nonexistent version did not report N/A"
-[ "_$EXIT_CODE" = "_3" ] || die "nonexistent version did not exit with code 3, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_N/A" ] || die "nonexistent version did not report N/A"
+[ "_${EXIT_CODE}" = '_3' ] || die "nonexistent version did not exit with code 3, got ${EXIT_CODE}"
 
-
-nvm_ls_remote() {
+nvm_ls_remote_node() {
   echo "test output"
   echo "more test output"
-  echo "pattern received: _$1_"
+  echo "pattern received: _${1}_"
 }
 nvm_ls_remote_iojs() {
   echo "test iojs output"
   echo "more iojs test output"
-  echo "iojs pattern received: _$1_"
+  echo "iojs pattern received: _${1}_"
 }
 
 OUTPUT="$(nvm_remote_versions foo)"
 EXIT_CODE="$(nvm_remote_versions foo >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_$(nvm_ls_remote foo)
+[ "_${OUTPUT}" = "_$(nvm_ls_remote foo)
 $(nvm_ls_remote_iojs foo)" ] \
-  || die "nvm_remote_versions foo did not return contents of nvm_ls_remote foo combined with nvm_ls_remote_iojs foo; got $OUTPUT"
-[ "_$EXIT_CODE" = "_0" ] || die "nvm_remote_versions foo did not exit with 0, got $EXIT_CODE"
+  || die "nvm_remote_versions foo did not return contents of nvm_ls_remote foo combined with nvm_ls_remote_iojs foo; got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_0' ] || die "nvm_remote_versions foo did not exit with 0, got ${EXIT_CODE}"
 
 OUTPUT="$(nvm_remote_versions node)"
 EXIT_CODE="$(nvm_remote_versions node >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_$(nvm_ls_remote)" ] \
-  || die "nvm_remote_versions node did not return contents of nvm_ls_remote; got $OUTPUT"
-[ "_$EXIT_CODE" = "_0" ] || die "nvm_remote_versions node did not exit with 0, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_$(nvm_ls_remote)" ] \
+  || die "nvm_remote_versions node did not return contents of nvm_ls_remote; got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_0' ] || die "nvm_remote_versions node did not exit with 0, got ${EXIT_CODE}"
 
 OUTPUT="$(nvm_remote_versions iojs-foo)"
 EXIT_CODE="$(nvm_remote_versions iojs-foo >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_$(nvm_ls_remote iojs-foo)
+[ "_${OUTPUT}" = "_$(nvm_ls_remote iojs-foo)
 $(nvm_ls_remote_iojs iojs-foo)" ] \
-  || die "nvm_remote_versions iojs-foo did not return contents of nvm_ls_remote iojs-foo combined with nvm_ls_remote_iojs iojs-foo; got $OUTPUT"
-[ "_$EXIT_CODE" = "_0" ] || die "nvm_remote_versions iojs-foo did not exit with 0, got $EXIT_CODE"
+  || die "nvm_remote_versions iojs-foo did not return contents of nvm_ls_remote iojs-foo combined with nvm_ls_remote_iojs iojs-foo; got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_0' ] || die "nvm_remote_versions iojs-foo did not exit with 0, got ${EXIT_CODE}"
 
 OUTPUT="$(nvm_remote_versions iojs)"
 EXIT_CODE="$(nvm_remote_versions iojs >/dev/null 2>&1 ; echo $?)"
-[ "_$OUTPUT" = "_$(nvm_ls_remote_iojs)" ] \
-  || die "nvm_remote_versions iojs did not return contents of nvm_ls_remote_iojs; got $OUTPUT"
-[ "_$EXIT_CODE" = "_0" ] || die "nvm_remote_versions iojs did not exit with 0, got $EXIT_CODE"
+[ "_${OUTPUT}" = "_$(nvm_ls_remote_iojs)" ] \
+  || die "nvm_remote_versions iojs did not return contents of nvm_ls_remote_iojs; got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_0' ] || die "nvm_remote_versions iojs did not exit with 0, got ${EXIT_CODE}"
+
+OUTPUT="$(NVM_IOJS_ORG_MIRROR= nvm_remote_versions)"
+EXIT_CODE="$(nvm_remote_versions iojs >/dev/null 2>&1 ; echo $?)"
+[ "_${OUTPUT}" = "_$(nvm_ls_remote_node)" ] \
+  || die "NVM_IOJS_ORG_MIRROR= nvm_remote_versions did not return contents of nvm_ls_remote_node; got ${OUTPUT}"
+[ "_${EXIT_CODE}" = '_0' ] || die "nvm_ls_remote_node= nvm_remote_versions did not exit with 0, got ${EXIT_CODE}"
 
 cleanup