ruby=>rbenv, python=>pyenv; add install+update scripts

dev/pyenv/aliases.zsh

@@ -0,0 +1,6 @@
+alias py='python'
+command -v python2 >/dev/null && alias py2='python2'
+command -v python3 >/dev/null && alias py3='python3'
+
+alias pye='pyenv'
+alias ipy='ipython'

dev/pyenv/install

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+if [[ -d "$HOME/.pyenv" ]]; then
+    >&2 echo "~/.pyenv already exists, can't install."
+    exit 1
+else
+    git clone https://github.com/yyuu/pyenv.git $HOME/.pyenv
+fi

dev/pyenv/update

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+if [[ -d $HOME/.pyenv ]]; then
+    cd $HOME/.pyenv && git pull
+    for plugin in $HOME/.pyenv/plugins/*/; do
+        cd "$plugin" && git pull
+    done
+fi

dev/python/aliases.zsh

@@ -1,5 +0,0 @@
-alias py='python'
-alias py2='python2'
-alias py3='python3'
-alias pye='pyenv'
-alias ipy='ipython'

dev/python/install

@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-
-if [[ ! -d "$HOME/.pyenv" ]]; then
-    git clone https://github.com/yyuu/pyenv.git $HOME/.pyenv
-fi

dev/rbenv/install

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [[ -d "$HOME/.rbenv" ]]; then
+    >&2 echo "~/.rbenv already exists, can't install."
+    exit 1
+else
+    git clone https://github.com/rbenv/rbenv.git $HOME/.rbenv
+    git clone https://github.com/rbenv/ruby-build.git $HOME/.rbenv/plugins/ruby-build
+fi

dev/rbenv/update

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+if [[ -d "$HOME/.rbenv" ]]; then
+    cd $HOME/.rbenv && git pull
+    for plugin in $HOME/.rbenv/plugins/*/; do
+        cd "$plugin" && git pull
+    done
+fi

dev/ruby/install

@@ -1,12 +0,0 @@
-#!/bin/bash
-
-case "$OSTYPE" in
-    darwin*)
-        brew install rbenv
-        ;;
-    linux*)
-        git clone https://github.com/rbenv/rbenv.git $HOME/.rbenv
-        cd $HOME/.rbenv && src/configure && make -C src
-        git clone https://github.com/rbenv/ruby-build.git $HOME/.rbenv/plugins/ruby-build
-        ;;
-esac