Wholesale cleanup of nodejs related components

- remove redundant cite
- support Basher
- add nenv plugin
- uplift nodenv to follow newer pattern and standard
- ensure node components play well with *env tools

clean_files.txt

@@ -99,6 +99,7 @@ plugins/available/history.plugin.bash
 plugins/available/hub.plugin.bash
 plugins/available/jump.plugin.bash
 plugins/available/less-pretty-cat.plugin.bash
+plugins/available/nenv.plugin.bash
 plugins/available/node.plugin.bash
 plugins/available/nodenv.plugin.bash
 plugins/available/percol.plugin.bash

completion/available/npm.completion.bash

@@ -1,7 +1,8 @@
 # shellcheck shell=bash
-cite "about-completion"
 about-completion "npm (Node Package Manager) completion"
 
-if _command_exists npm; then
+# Test `npm version` because *env tools create shim scripts that will be found in PATH
+# but do not always resolve to a working install.
+if _command_exists npm && npm --version &> /dev/null; then
 	eval "$(npm completion)"
 fi

plugins/available/nenv.plugin.bash

@@ -0,0 +1,15 @@
+# shellcheck shell=bash
+about-plugin 'load nenv, if you are using it'
+
+# Load after basher
+# BASH_IT_LOAD_PRIORITY: 260
+
+export NENV_ROOT="${NENV_ROOT:-${HOME?}/.nenv}"
+
+if [[ -d "${NENV_ROOT?}/bin" ]]; then
+	pathmunge "${NENV_ROOT?}/bin"
+fi
+
+if _command_exists nenv; then
+	eval "$(nenv init - bash)"
+fi

plugins/available/node.plugin.bash

@@ -1,14 +1,13 @@
 # shellcheck shell=bash
-cite about-plugin
 about-plugin 'Node.js helper functions'
 
-# Check that we have npm
-_command_exists npm || return
+# Load after *env plugins
+# BASH_IT_LOAD_PRIORITY: 270
 
 # Ensure local modules are preferred in PATH
-pathmunge "./node_modules/.bin" "after"
+pathmunge './node_modules/.bin' 'after'
 
-# If not using nodenv, ensure global modules are in PATH
-if [[ ! "$(type -p npm)" == *"nodenv/shims"* ]]; then
-	pathmunge "$(npm config get prefix)/bin" "after"
+# If not using an *env tool, ensure global modules are in PATH
+if [[ ! "$(type -p npm)" == *'/shims/npm' ]]; then
+	pathmunge "$(npm config get prefix)/bin" 'after'
 fi

plugins/available/nodenv.plugin.bash

@@ -1,9 +1,14 @@
 # shellcheck shell=bash
-cite about-plugin
 about-plugin 'load nodenv, if you are using it'
 
-export NODENV_ROOT="$HOME/.nodenv"
-pathmunge "$NODENV_ROOT/bin"
+# Load after basher
+# BASH_IT_LOAD_PRIORITY: 260
+
+export NODENV_ROOT="${NODENV_ROOT:-${HOME?}/.nodenv}"
+
+if [[ -d "${NODENV_ROOT?}/bin" ]]; then
+	pathmunge "${NODENV_ROOT?}/bin"
+fi
 
 if _command_exists nodenv; then
 	eval "$(nodenv init - bash)"