Add possibility to enable/disable plugins (issue #23)

libexec/jenv

@@ -45,6 +45,8 @@ else
 fi
 export JENV_ROOT
 
+
+
 if [ -z "${JENV_DIR}" ]; then
   JENV_DIR="$(pwd)"
 else
@@ -64,23 +66,18 @@ shopt -s nullglob
 
 bin_path="$(abs_dirname "$0")"    
                   
-
-
+if ! samedir "${JENV_ROOT}" "$bin_path/../"  ; then
+   JENV_INSTALL_DIR=$(resolvepath "$bin_path/../")
+else
+    JENV_INSTALL_DIR=$JENV_ROOT
+fi
+   export JENV_INSTALL_DIR
 
 
 for plugin_bin in "${JENV_ROOT}/plugins/"*/bin; do
   bin_path="${bin_path}:${plugin_bin}"
 done  
 
-# If jenv is not installed in $HOME/.jenv, look for plugin in installation directory
-if ! samedir "${JENV_ROOT}" "$bin_path/../"  ; then
-  for plugin_bin in "$bin_path/../plugins/"*/bin; do
-    bin_path="${bin_path}:${plugin_bin}"
-  done                          
-fi
-
-
-
 export PATH="${bin_path}:${PATH}" 
 
 
@@ -90,13 +87,6 @@ for plugin_hook in "${JENV_ROOT}/plugins/"*/etc/jenv.d; do
   hook_path="${hook_path}:${plugin_hook}"
 done   
 
-# If jenv is not installed in $HOME/.jenv, look for plugin in installation directory
-if ! samedir "${JENV_ROOT}" "$bin_path/../"  ; then
-  for plugin_hook in "$bin_path/../plugins/"*/etc/jenv.d; do      
-    hook_path="${hook_path}:${plugin_hook}"     
-  done
-fi
-
 
 export JENV_HOOK_PATH=$hook_path
 

libexec/jenv-disable-plugin

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Summary: Desactivate a jEnv plugin
+# Usage: jenv disable-plugin <pluginName>
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  exec jenv-plugins --enabled
+fi
+
+if [ -z "$1" ]; then
+  jenv-help disable-plugin  >&2
+  exit 1
+fi
+
+plugin="$1"
+
+if [ -h ${JENV_ROOT}/plugins/$plugin ]; then 
+	   	rm -f "${JENV_ROOT}/plugins/$plugin"
+		$(jenv-rehash)	   	
+	   	echo "$plugin disabled"
+	else
+        echo "$plugin is not enabled"
+
+fi
+

libexec/jenv-plugins

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+# Summary: List available plugins
+# Usage: jenv plugins
+
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+
+if [ "$1" = "--complete" ]; then
+  echo "--enabled"
+  echo "--available" 
+  exit
+fi
+
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+samedir()  {
+  local path1="$(resolvepath $1)"
+  local path2="$(resolvepath $2)"
+
+  if [ $path1 == $path2 ]; then
+   return 0; 
+  else
+   return 1;
+  fi
+}
+
+resolvepath() {
+  local cwd="$(pwd)" 
+  cd $1
+  echo "$(pwd)"
+  cd "$cwd"
+}
+
+
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+
+if [ "$1" = "--enabled" ] ; then
+	for plugin in "${JENV_ROOT}"/plugins/*; do      
+  		echo $(basename $plugin)
+	done   
+else
+	for plugin in "${JENV_INSTALL_DIR}"/available-plugins/*; do      
+  		echo $(basename $plugin)
+	done   
+fi
+

libexec/jenv-sh-enable-plugin

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# Summary: Activate a jEnv plugin
+# Usage: jenv enable-plugin <pluginName>
+
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  exec jenv-plugins
+fi
+
+if [ -z "$1" ]; then
+	echo "jenv help enable-plugin"
+	exit 1
+fi
+
+plugin="$1"
+
+
+if [ -h ${JENV_ROOT}/plugins/$plugin ]; then 
+	   echo "echo $plugin plugin already enabled"
+	else
+		if [ ! -d "${JENV_INSTALL_DIR}/available-plugins/$plugin" ]; then
+  		  echo "echo $plugin plugin does not exist"
+  		  exit 1;
+		fi
+ 		ln -s  "${JENV_INSTALL_DIR}/available-plugins/$plugin" "${JENV_ROOT}/plugins/$plugin" 
+
+		echo "echo $plugin plugin activated && jenv rehash "
+fi
+
+