commit f55a9c80b1608b15710db58b09018656ad95c791
Author: Gildas Cuisinier <gildas.cuisinier@gmail.com>
Date:   Thu Jan 24 23:50:08 2013 +0100

    First commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/bin/jenv b/bin/jenv
new file mode 120000
index 0000000..b938806
--- /dev/null
+++ b/bin/jenv
@@ -0,0 +1 @@
+../libexec/jenv
\ No newline at end of file
diff --git a/completions/jenv.bash b/completions/jenv.bash
new file mode 100644
index 0000000..b91677b
--- /dev/null
+++ b/completions/jenv.bash
@@ -0,0 +1,14 @@
+_jenv() {
+  COMPREPLY=()
+  local word="${COMP_WORDS[COMP_CWORD]}"
+
+  if [ "$COMP_CWORD" -eq 1 ]; then
+    COMPREPLY=( $(compgen -W "$(jenv commands)" -- "$word") )
+  else
+    local command="${COMP_WORDS[1]}"
+    local completions="$(jenv completions "$command")"
+    COMPREPLY=( $(compgen -W "$completions" -- "$word") )
+  fi
+}
+
+complete -F _jenv jenv
diff --git a/completions/jenv.zsh b/completions/jenv.zsh
new file mode 100644
index 0000000..ede3e10
--- /dev/null
+++ b/completions/jenv.zsh
@@ -0,0 +1,19 @@
+if [[ ! -o interactive ]]; then
+    return
+fi
+
+compctl -K _jenv jenv
+
+_jenv() {
+  local word words completions
+  read -cA words
+  word="${words[2]}"
+
+  if [ "${#words}" -eq 2 ]; then
+    completions="$(jenv commands)"
+  else
+    completions="$(jenv completions "${word}")"
+  fi
+
+  reply=("${(ps:\n:)completions}")
+}
diff --git a/libexec/jenv b/libexec/jenv
new file mode 100755
index 0000000..b83d305
--- /dev/null
+++ b/libexec/jenv
@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+if [ -z "${JENV_ROOT}" ]; then
+  JENV_ROOT="${HOME}/.jenv"
+else
+  JENV_ROOT="${JENV_ROOT%/}"
+fi
+export JENV_ROOT
+
+if [ -z "${JENV_DIR}" ]; then
+  JENV_DIR="$(pwd)"
+else
+  cd "$JENV_DIR" 2>/dev/null || {
+    echo "jenv: cannot change working directory to \`$JENV_DIR'"
+    exit 1
+  } >&2
+  JENV_DIR="$(pwd)"
+  cd "$OLDPWD"
+fi
+export JENV_DIR
+
+
+shopt -s nullglob
+                  
+
+
+bin_path="$(abs_dirname "$0")"
+for plugin_bin in "${JENV_ROOT}/plugins/"*/bin; do
+  bin_path="${bin_path}:${plugin_bin}"
+done
+export PATH="${bin_path}:${PATH}"
+
+hook_path="${JENV_HOOK_PATH}"
+for plugin_hook in "${JENV_ROOT}/plugins/"*/etc/jenv.d; do      
+  hook_path="${hook_path}:${plugin_hook}"
+done
+
+export JENV_HOOK_PATH=$hook_path
+
+
+
+shopt -u nullglob
+
+
+command="$1"
+case "$command" in
+"" | "-h" | "--help" )
+  echo -e "jenv 0.1.0\n$(jenv-help)" >&2
+  ;;
+* )
+  command_path="$(command -v "jenv-$command" || true)"   
+  if [ -z "$command_path" ]; then
+    echo "jenv: no such command \`$command'" >&2
+    exit 1
+  fi
+
+  shift 1        
+  exec "$command_path" "$@"
+  ;;
+esac
diff --git a/libexec/jenv-add b/libexec/jenv-add
new file mode 100755
index 0000000..3dc1040
--- /dev/null
+++ b/libexec/jenv-add
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --unset
+  echo system
+  exec jenv-versions --bare
+fi
+
+JENV_VERSION="$1" 
+JENV_JAVAPATH="$2"
+JENV_VERSION_FILE=".jenv-version"
+                  
+echo $JENV_VERSION
+echo $JENV_JAVAPATH  
+
+   
+                            
+if [ -f "$JENV_JAVAPATH/bin/java" ];
+then
+ 	ln -s  "$JENV_JAVAPATH" "${JENV_ROOT}/versions/$JENV_VERSION"
+else
+	echo "$JENV_JAVAPATH is not a valid path to java installation"
+fi
diff --git a/libexec/jenv-commands b/libexec/jenv-commands
new file mode 100755
index 0000000..6ebd301
--- /dev/null
+++ b/libexec/jenv-commands
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --sh
+  echo --no-sh
+  exit
+fi
+
+if [ "$1" = "--sh" ]; then
+  sh=1
+  shift
+elif [ "$1" = "--no-sh" ]; then
+  nosh=1
+  shift
+fi
+
+shopt -s nullglob
+
+{ for path in ${PATH//:/$'\n'}; do
+    for command in "${path}/jenv-"*; do
+      command="${command##*jenv-}"
+      if [ -n "$sh" ]; then
+        if [ ${command:0:3} = "sh-" ]; then
+          echo ${command##sh-}
+        fi
+      elif [ -n "$nosh" ]; then
+        if [ ${command:0:3} != "sh-" ]; then
+          echo ${command##sh-}
+        fi
+      else
+        echo ${command##sh-}
+      fi
+    done
+  done
+} | sort | uniq
diff --git a/libexec/jenv-completions b/libexec/jenv-completions
new file mode 100755
index 0000000..0c8f2da
--- /dev/null
+++ b/libexec/jenv-completions
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+COMMAND="$1"
+if [ -z "$COMMAND" ]; then
+  echo "usage: jenv completions COMMAND [arg1 arg2...]" >&2
+  exit 1
+fi
+
+COMMAND_PATH="$(command -v "jenv-$COMMAND" || command -v "jenv-sh-$COMMAND")"
+if grep -i "^# provide jenv completions" "$COMMAND_PATH" >/dev/null; then
+  shift
+  exec "$COMMAND_PATH" --complete "$@"
+fi
diff --git a/libexec/jenv-exec b/libexec/jenv-exec
new file mode 100755
index 0000000..7c65406
--- /dev/null
+++ b/libexec/jenv-exec
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  exec jenv shims --short
+fi
+               
+export JAVA_HOME="${JENV_ROOT}/versions/$(jenv-version-name)"   
+
+JENV_COMMAND="$1"
+if [ -z "$JENV_COMMAND" ]; then
+  echo "usage: jenv exec COMMAND [arg1 arg2...]" >&2
+  exit 1
+fi
+
+JENV_COMMAND_PATH="$(jenv-which "$JENV_COMMAND")"
+JENV_BIN_PATH="${JENV_COMMAND_PATH%/*}"
+                              
+
+
+#for script in $(jenv-hooks exec); do
+#  source "$script"
+#done
+
+shift 1
+export PATH="${JENV_BIN_PATH}:${PATH}"  
+echo $PATH
+exec -a "$JENV_COMMAND" "$JENV_COMMAND_PATH" "$@"
diff --git a/libexec/jenv-global b/libexec/jenv-global
new file mode 100755
index 0000000..19b34d2
--- /dev/null
+++ b/libexec/jenv-global
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo system
+  exec jenv-versions --bare
+fi
+
+JENV_VERSION="$1"
+JENV_VERSION_FILE="${JENV_ROOT}/version"
+
+if [ -n "$JENV_VERSION" ]; then
+  jenv-version-file-write "$JENV_VERSION_FILE" "$JENV_VERSION"
+else
+  jenv-version-file-read "$JENV_VERSION_FILE" ||
+  jenv-version-file-read "${JENV_ROOT}/global" ||
+  jenv-version-file-read "${JENV_ROOT}/default" ||
+  echo system
+fi
diff --git a/libexec/jenv-help b/libexec/jenv-help
new file mode 100755
index 0000000..e696646
--- /dev/null
+++ b/libexec/jenv-help
@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+print_set_version() {
+  echo "<version> should be a string matching a Ruby version known by jenv."
+
+  local versions="$(jenv-versions --bare)"
+  if [ -z "$versions" ]; then
+    echo "There are currently no Ruby versions installed for jenv."
+  else
+    echo "The currently installed Ruby versions are:"
+    echo "$versions" | sed 's/^/  /'
+  fi
+
+  echo
+  echo "The special version string 'system' will use your default system Ruby."
+}
+
+case "$1" in
+"") echo "usage: jenv <command> [<args>]
+
+Some useful jenv commands are:
+   commands      List all jenv commands
+   rehash        Rehash jenv shims (run this after installing binaries)
+   global        Set or show the global Ruby version
+   local         Set or show the local directory-specific Ruby version
+   shell         Set or show the shell-specific Ruby version
+   version       Show the current Ruby version
+   versions      List all Ruby versions known by jenv
+   which         Show the full path for the given Ruby command
+   whence        List all Ruby versions with the given command
+
+See 'jenv help <command>' for information on a specific command.
+For full documentation, see: https://github.com/sstephenson/jenv#readme"
+;;
+global) echo "usage: jenv global <version>
+
+Sets the global Ruby version. You can override the global version at
+any time by setting a directory-specific version with \`jenv local'
+or by setting the JENV_VERSION environment variable.
+
+$(print_set_version)"
+;;
+local) echo "usage: jenv local <version>
+       jenv local --unset
+
+Sets the local directory-specific Ruby version by writing the version
+name to a file named '.jenv-version'.
+
+When you run a Ruby command, jenv will look for an '.jenv-version'
+file in the current directory and each parent directory. If no such
+file is found in the tree, jenv will use the global Ruby version
+specified with \`jenv global', or the version specified in the
+JENV_VERSION environment variable.
+
+$(print_set_version)"
+;;
+shell) echo "usage: jenv shell <version>
+       jenv shell --unset
+
+Sets a shell-specific Ruby version by setting the 'JENV_VERSION'
+environment variable in your shell. This version overrides both
+project-specific versions and the global version.
+
+$(print_set_version)"
+;;
+which) echo "usage: jenv which <command>
+
+Displays the full path to the binary that jenv will execute when you
+run the given command."
+;;
+whence) echo "usage: jenv whence <command>
+
+Lists all Ruby versions with the given command installed."
+;;
+*)
+  command_path="$(command -v "jenv-$1" || true)"
+  if [ -n "$command_path" ]; then
+    echo "Sorry, the \`$1' command isn't documented yet."
+    echo
+    echo "You can view the command's source here:"
+    echo "$command_path"
+    echo
+  else
+    echo "jenv: no such command \`$1'"
+  fi
+esac
diff --git a/libexec/jenv-hooks b/libexec/jenv-hooks
new file mode 100755
index 0000000..90c4659
--- /dev/null
+++ b/libexec/jenv-hooks
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo exec
+  echo rehash
+  echo which
+  exit
+fi
+
+JENV_COMMAND="$1"
+if [ -z "$JENV_COMMAND" ]; then
+  echo "usage: jenv hooks COMMAND" >&2
+  exit 1
+fi
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) $1
+}
+
+realpath() {
+  local cwd="$(pwd)"
+  local base="$(basename $1)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  echo "$(pwd)/$base"
+  cd "$cwd"
+}
+
+shopt -s nullglob
+for path in ${JENV_HOOK_PATH//:/$'\n'}; do   
+  for script in $path/"$JENV_COMMAND"/*.bash; do
+    echo $(realpath $script)
+  done
+done
+shopt -u nullglob
diff --git a/libexec/jenv-init b/libexec/jenv-init
new file mode 100755
index 0000000..253f605
--- /dev/null
+++ b/libexec/jenv-init
@@ -0,0 +1,98 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+print=""
+if [ "$1" = "-" ]; then
+  print=1
+  shift
+fi
+
+no_rehash=""
+if [ "$1" = "--no-rehash" ]; then
+  no_rehash=1
+  shift
+fi
+
+shell="$1"
+if [ -z "$shell" ]; then
+  shell="$(basename "$SHELL")"
+fi
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) $1
+}
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+root="$(abs_dirname "$0")/.."
+
+if [ -z "$print" ]; then
+  case "$shell" in
+  bash )
+    profile='~/.bash_profile'
+    ;;
+  zsh )
+    profile='~/.zshrc'
+    ;;
+  ksh )
+    profile='~/.profile'
+    ;;
+  * )
+    profile='your profile'
+    ;;
+  esac
+
+  { echo "# Load jenv automatically by adding"
+    echo "# the following to ${profile}:"
+    echo
+    echo 'eval "$(jenv init -)"'
+    echo
+  } >&2
+
+  exit 1
+fi
+
+mkdir -p "${JENV_ROOT}/"{shims,versions}
+
+echo 'export PATH="'${JENV_ROOT}'/shims:${PATH}"'
+
+case "$shell" in
+bash | zsh )
+  echo "source \"$root/completions/jenv.${shell}\""
+  ;;
+esac
+
+if [ -z "$no_rehash" ]; then
+  echo 'jenv rehash 2>/dev/null'
+fi
+
+commands=(`jenv commands --sh`)
+IFS="|"
+cat <<EOS
+jenv() {
+  command="\$1"
+  if [ "\$#" -gt 0 ]; then
+    shift
+  fi
+
+  case "\$command" in
+  ${commands[*]})
+    eval \`jenv "sh-\$command" "\$@"\`;;
+  *)
+    command jenv "\$command" "\$@";;
+  esac
+}
+EOS
diff --git a/libexec/jenv-local b/libexec/jenv-local
new file mode 100755
index 0000000..2cbd4e9
--- /dev/null
+++ b/libexec/jenv-local
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --unset
+  echo system
+  exec jenv-versions --bare
+fi
+
+JENV_VERSION="$1"
+JENV_VERSION_FILE=".jenv-version"
+
+if [ "$JENV_VERSION" = "--unset" ]; then
+  rm -f "$JENV_VERSION_FILE"
+elif [ -n "$JENV_VERSION" ]; then
+  jenv-version-file-write "$JENV_VERSION_FILE" "$JENV_VERSION"
+else
+  jenv-version-file-read "$JENV_VERSION_FILE" ||
+  { echo "jenv: no local version configured for this directory"
+    exit 1
+  } >&2
+fi
diff --git a/libexec/jenv-prefix b/libexec/jenv-prefix
new file mode 100755
index 0000000..90726ae
--- /dev/null
+++ b/libexec/jenv-prefix
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo system
+  exec jenv-versions --bare
+fi
+
+if [ -n "$1" ]; then
+  export JENV_VERSION="$1"
+elif [ -z "$JENV_VERSION" ]; then
+  JENV_VERSION="$(jenv-version-name)"
+fi
+
+if [ "$JENV_VERSION" = "system" ]; then
+  RUBY_PATH="$(jenv-which ruby)"
+  echo "${RUBY_PATH%/*}"
+  exit
+fi
+
+JENV_PREFIX_PATH="${JENV_ROOT}/versions/${JENV_VERSION}"
+if [ ! -d "$JENV_PREFIX_PATH" ]; then
+  echo "jenv: version \`${JENV_VERSION}' not installed" >&2
+  exit 1
+fi
+
+echo "$JENV_PREFIX_PATH"
diff --git a/libexec/jenv-rehash b/libexec/jenv-rehash
new file mode 100755
index 0000000..75776e1
--- /dev/null
+++ b/libexec/jenv-rehash
@@ -0,0 +1,149 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+SHIM_PATH="${JENV_ROOT}/shims"
+PROTOTYPE_SHIM_PATH="${SHIM_PATH}/.jenv-shim"
+
+# Create the shims directory if it doesn't already exist.
+mkdir -p "$SHIM_PATH"
+
+# Ensure only one instance of jenv-rehash is running at a time by
+# setting the shell's `noclobber` option and attempting to write to
+# the prototype shim file. If the file already exists, print a warning
+# to stderr and exit with a non-zero status.
+set -o noclobber
+{ echo > "$PROTOTYPE_SHIM_PATH"
+} 2>/dev/null ||
+{ echo "jenv: cannot rehash: $PROTOTYPE_SHIM_PATH exists"
+  exit 1
+} >&2
+set +o noclobber
+
+# If we were able to obtain a lock, register a trap to clean up the
+# prototype shim when the process exits.
+trap remove_prototype_shim EXIT
+
+remove_prototype_shim() {
+  rm -f "$PROTOTYPE_SHIM_PATH"
+}
+
+# The prototype shim file is a script that re-execs itself, passing
+# its filename and any arguments to `jenv exec`. This file is
+# hard-linked for every binary and then removed. The linking technique
+# is fast, uses less disk space than unique files, and also serves as
+# a locking mechanism.
+create_prototype_shim() {
+  cat > "$PROTOTYPE_SHIM_PATH" <<SH
+#!/usr/bin/env bash
+set -e
+export JENV_ROOT="$JENV_ROOT"
+exec jenv exec "\${0##*/}" "\$@"
+SH
+  chmod +x "$PROTOTYPE_SHIM_PATH"
+}
+
+# The basename of each argument passed to `make_shims` will be
+# registered for installation as a shim. In this way, plugins may call
+# `make_shims` with a glob to register many shims at once.
+make_shims() {
+  local shims="$@"    
+  
+
+  for file in $shims; do
+    local shim="${file##*/}"
+    register_shim "$shim"
+  done
+}
+
+# Create an empty array for the list of registered shims.
+registered_shims=()
+
+# We will keep track of shims registered for installation with the
+# global `reigstered_shims` array and with a global variable for each
+# shim. The array will let us iterate over all registered shims. The
+# global variables will let us quickly check whether a shim with the
+# given name has been registered or not.
+register_shim() {
+  local shim="$@"
+  local var="$(shim_variable_name "$shim")"
+
+  if [ -z "${!var}" ]; then
+    registered_shims[${#registered_shims[*]}]="$shim"
+    eval "${var}=1"
+  fi
+}
+
+# To compute the global variable name for a given shim we must first
+# escape any non-alphanumeric characters. If the shim name is
+# alphanumeric (including a hyphen or underscore) we can take a
+# shorter path. Otherwise, we must iterate over each character and
+# escape the non-alphanumeric ones using `printf`.
+shim_variable_name() {
+  local shim="$1"
+  local result="_shim_"
+
+  if [[ ! "$shim" =~ [^[:alnum:]_-] ]]; then
+    shim="${shim//_/_5f}"
+    shim="${shim//-/_2d}"
+    result+="$shim"
+  else
+    local length="${#shim}"
+    local char i
+
+    for ((i=0; i<length; i++)); do
+      char="${shim:$i:1}"
+      if [[ "$char" =~ [[:alnum:]] ]]; then
+        result+="$char"
+      else
+        result+="$(printf "_%02x" \'"$char")"
+      fi
+    done
+  fi
+
+  echo "$result"
+}
+
+# To install all the registered shims, we iterate over the
+# `registered_shims` array and create a link if one does not already
+# exist.
+install_registered_shims() {
+  for shim in "${registered_shims[@]}"; do
+    [ -e "$shim" ] || ln -f "$PROTOTYPE_SHIM_PATH" "$shim"
+  done
+}
+
+# Once the registered shims have been installed, we make a second pass
+# over the contents of the shims directory. Any file that is present
+# in the directory but has not been registered as a shim should be
+# removed.
+remove_stale_shims() {
+  local var
+  for shim in *; do
+    var="$(shim_variable_name "$shim")"
+    [ -z "${!var}" ] && rm -f "$shim"
+  done
+}
+
+
+# Change to the shims directory.
+cd "$SHIM_PATH"
+
+# Create the prototype shim, then register shims for all known binaries.
+create_prototype_shim
+shopt -s nullglob
+#make_shims ../versions/*/bin/*
+
+# Restore the previous working directory.
+cd "$OLDPWD"
+
+# Allow plugins to register shims.    
+for script in $(jenv-hooks rehash); do        
+  source "$script"
+done
+
+# Change back to the shims directory to install the registered shims
+# and remove stale shims.
+cd "$SHIM_PATH"
+install_registered_shims
+remove_stale_shims
diff --git a/libexec/jenv-root b/libexec/jenv-root
new file mode 100755
index 0000000..27970e2
--- /dev/null
+++ b/libexec/jenv-root
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+echo $JENV_ROOT
diff --git a/libexec/jenv-sh-shell b/libexec/jenv-sh-shell
new file mode 100755
index 0000000..2d5b4f2
--- /dev/null
+++ b/libexec/jenv-sh-shell
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --unset
+  echo system
+  exec jenv-versions --bare
+fi
+
+version="$1"
+
+if [ -z "$version" ]; then
+  if [ -z "$JENV_VERSION" ]; then
+    echo "jenv: no shell-specific version configured" >&2
+    exit 1
+  else
+    echo "echo \"\$JENV_VERSION\""
+    exit
+  fi
+fi
+
+if [ "$version" = "--unset" ]; then
+  echo "unset JENV_VERSION"
+  exit 1
+fi
+
+# Make sure the specified version is installed.
+jenv-prefix "$version" >/dev/null
+
+echo "export JENV_VERSION=\"${version}\""
diff --git a/libexec/jenv-shims b/libexec/jenv-shims
new file mode 100755
index 0000000..8887104
--- /dev/null
+++ b/libexec/jenv-shims
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --short
+  exit
+fi
+
+for command in "${JENV_ROOT}/shims/"*; do
+  if [ "$1" = "--short" ]; then
+    echo "${command##*/}"
+  else
+    echo "$command"
+  fi
+done | sort
diff --git a/libexec/jenv-version b/libexec/jenv-version
new file mode 100755
index 0000000..deb7627
--- /dev/null
+++ b/libexec/jenv-version
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+echo "$(jenv-version-name) (set by $(jenv-version-origin))"
diff --git a/libexec/jenv-version-file b/libexec/jenv-version-file
new file mode 100755
index 0000000..2328593
--- /dev/null
+++ b/libexec/jenv-version-file
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+root="$JENV_DIR"
+while [ -n "$root" ]; do
+  if [ -e "${root}/.jenv-version" ]; then
+    echo "${root}/.jenv-version"
+    exit
+  fi
+  root="${root%/*}"
+done
+
+global_version_file="${JENV_ROOT}/version"
+
+if [ -e "$global_version_file" ]; then
+  echo "$global_version_file"
+elif [ -e "${JENV_ROOT}/global" ]; then
+  echo "${JENV_ROOT}/global"
+elif [ -e "${JENV_ROOT}/default" ]; then
+  echo "${JENV_ROOT}/default"
+else
+  echo "$global_version_file"
+fi
diff --git a/libexec/jenv-version-file-read b/libexec/jenv-version-file-read
new file mode 100755
index 0000000..13c55e0
--- /dev/null
+++ b/libexec/jenv-version-file-read
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+VERSION_FILE="$1"
+
+if [ -e "$VERSION_FILE" ]; then
+  # Read and print the first non-whitespace word from the specified
+  # version file.
+  version=""
+  while read -a words; do
+    word="${words[0]}"
+    if [ -z "$version" ] && [ -n "$word" ]; then
+      version="$word"
+    fi
+  done < <( cat "$VERSION_FILE" && echo )
+
+  if [ -n "$version" ]; then
+    echo "$version"
+    exit
+  fi
+fi
+
+exit 1
diff --git a/libexec/jenv-version-file-write b/libexec/jenv-version-file-write
new file mode 100755
index 0000000..62bfe48
--- /dev/null
+++ b/libexec/jenv-version-file-write
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+JENV_VERSION_FILE="$1"
+JENV_VERSION="$2"
+
+if [ -z "$JENV_VERSION" ] || [ -z "$JENV_VERSION_FILE" ]; then
+  echo "usage: jenv write-version-file FILENAME VERSION" >&2
+  exit 1
+fi
+
+# Make sure the specified version is installed.
+jenv-prefix "$JENV_VERSION" >/dev/null
+
+# Write the version out to disk.
+echo "$JENV_VERSION" > "$JENV_VERSION_FILE"
diff --git a/libexec/jenv-version-name b/libexec/jenv-version-name
new file mode 100755
index 0000000..2ce8b96
--- /dev/null
+++ b/libexec/jenv-version-name
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+if [ -z "$JENV_VERSION" ]; then
+  JENV_VERSION_FILE="$(jenv-version-file)"
+  JENV_VERSION="$(jenv-version-file-read "$JENV_VERSION_FILE" || true)"
+fi
+
+if [ -z "$JENV_VERSION" ] || [ "$JENV_VERSION" = "system" ]; then
+  echo "system"
+  exit
+fi
+
+JENV_VERSION_PATH="${JENV_ROOT}/versions/${JENV_VERSION}"
+
+if [ -d "$JENV_VERSION_PATH" ]; then
+  echo "$JENV_VERSION"
+else
+  echo "jenv: version \`$JENV_VERSION' is not installed" >&2
+  exit 1
+fi
diff --git a/libexec/jenv-version-origin b/libexec/jenv-version-origin
new file mode 100755
index 0000000..6c1c1a0
--- /dev/null
+++ b/libexec/jenv-version-origin
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+if [ -n "$JENV_VERSION" ]; then
+  echo "JENV_VERSION environment variable"
+else
+  jenv-version-file
+fi
diff --git a/libexec/jenv-versions b/libexec/jenv-versions
new file mode 100755
index 0000000..f71020b
--- /dev/null
+++ b/libexec/jenv-versions
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+JENV_VERSION_NAME="$(jenv-version-name)"
+
+if [ "$1" = "--bare" ]; then
+  hit_prefix=""
+  miss_prefix=""
+  print_version="$JENV_VERSION_NAME"
+else
+  hit_prefix="* "
+  miss_prefix="  "
+  print_version="$(jenv-version)"
+fi
+
+for path in "${JENV_ROOT}/versions/"*; do
+  if [ -d "$path" ]; then
+    version="${path##*/}"
+
+    if [ "$version" == "$JENV_VERSION_NAME" ]; then
+      echo "${hit_prefix}${print_version}"
+    else
+      echo "${miss_prefix}${version}"
+    fi
+  fi
+done
diff --git a/libexec/jenv-whence b/libexec/jenv-whence
new file mode 100755
index 0000000..a5cb4e2
--- /dev/null
+++ b/libexec/jenv-whence
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  echo --path
+  exec jenv shims --short
+fi
+
+if [ "$1" = "--path" ]; then
+  print_paths="1"
+  shift
+else
+  print_paths=""
+fi
+
+whence() {
+  local command="$1"
+  jenv-versions --bare | while read version; do
+    path="$(jenv-prefix "$version")/bin/${command}"
+    if [ -x "$path" ]; then
+      [ "$print_paths" ] && echo "$path" || echo "$version"
+    fi
+  done
+}
+
+JENV_COMMAND="$1"
+if [ -z "$JENV_COMMAND" ]; then
+  echo "usage: jenv whence [--path] COMMAND" >&2
+  exit 1
+fi
+
+result="$(whence "$JENV_COMMAND")"
+[ -n "$result" ] && echo "$result"
diff --git a/libexec/jenv-which b/libexec/jenv-which
new file mode 100755
index 0000000..aa86c0b
--- /dev/null
+++ b/libexec/jenv-which
@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$JENV_DEBUG" ] && set -x
+
+# Provide jenv completions
+if [ "$1" = "--complete" ]; then
+  exec jenv shims --short
+fi
+
+expand_path() {
+  if [ ! -d "$1" ]; then
+    return 1
+  fi
+
+  local cwd="$(pwd)"
+  cd "$1"
+  pwd
+  cd "$cwd"
+}
+
+remove_from_path() {
+  local path_to_remove="$(expand_path "$1")"
+  local result=""
+
+  if [ -z "$path_to_remove" ]; then
+    echo "${PATH}"
+    return
+  fi
+
+  for path in ${PATH//:/$'\n'}; do
+    path="$(expand_path "$path" || true)"
+    if [ -n "$path" ] && [ "$path" != "$path_to_remove" ]; then
+      result="${result}${path}:"
+    fi
+  done
+
+  echo "${result%:}"
+}
+
+JENV_VERSION="$(jenv-version-name)"
+JENV_COMMAND="$1"
+
+if [ -z "$JENV_COMMAND" ]; then
+  echo "usage: jenv which COMMAND" >&2
+  exit 1
+fi
+
+if [ "$JENV_VERSION" = "system" ]; then
+  PATH="$(remove_from_path "${JENV_ROOT}/shims")"
+  JENV_COMMAND_PATH="$(command -v "$JENV_COMMAND")"
+else
+  JENV_COMMAND_PATH="${JENV_ROOT}/versions/${JENV_VERSION}/bin/${JENV_COMMAND}" 
+
+  if [ -x "$JENV_COMMAND_PATH" ]; then      
+	echo 
+  else
+	  PATH="$(remove_from_path "${JENV_ROOT}/shims")"
+	  JENV_COMMAND_PATH="$(command -v "$JENV_COMMAND")"
+  fi  
+	  
+	   
+fi
+
+for script in $(jenv-hooks which); do
+  source "$script"
+done
+
+if [ -x "$JENV_COMMAND_PATH" ]; then
+  echo "$JENV_COMMAND_PATH"
+else
+  echo "jenv: $JENV_COMMAND: command not found" >&2
+
+  versions="$(jenv-whence "$JENV_COMMAND" || true)"
+  if [ -n "$versions" ]; then
+    { echo
+      echo "The \`$1' command exists in these Ruby versions:"
+      echo "$versions" | sed 's/^/  /g'
+      echo
+    } >&2
+  fi
+
+  exit 127
+fi
diff --git a/plugins/maven/etc/jenv.d/rehash/maven.bash b/plugins/maven/etc/jenv.d/rehash/maven.bash
new file mode 100644
index 0000000..3623bed
--- /dev/null
+++ b/plugins/maven/etc/jenv.d/rehash/maven.bash
@@ -0,0 +1,2 @@
+bin_path="/usr/share/maven/bin/*"
+make_shims "$bin_path"
\ No newline at end of file