1 files changed, 32 insertions, 13 deletions
diff --git a/oh-my-zsh.sh b/oh-my-zsh.sh
index 2ae07668c..8e31ddd0f 100644
--- a/oh-my-zsh.sh
+++ b/oh-my-zsh.sh
@@ -1,6 +1,6 @@
 # Check for updates on initial load...
 if [ "$DISABLE_AUTO_UPDATE" != "true" ]; then
-  /usr/bin/env ZSH=$ZSH DISABLE_UPDATE_PROMPT=$DISABLE_UPDATE_PROMPT zsh $ZSH/tools/check_for_upgrade.sh
+  env ZSH=$ZSH DISABLE_UPDATE_PROMPT=$DISABLE_UPDATE_PROMPT zsh -f $ZSH/tools/check_for_upgrade.sh
 fi
 
 # Initializes Oh My Zsh
@@ -8,11 +8,8 @@ fi
 # add a function path
 fpath=($ZSH/functions $ZSH/completions $fpath)
 
-# Load all of the config files in ~/oh-my-zsh that end in .zsh
-# TIP: Add files you don't want in git to .gitignore
-for config_file ($ZSH/lib/*.zsh); do
-  source $config_file
-done
+# Load all stock functions (from $fpath files) called below.
+autoload -U compaudit compinit
 
 # Set ZSH_CUSTOM to the path where your custom config files
 # and plugins exists, or else we will use the default custom/
@@ -20,6 +17,21 @@ if [[ -z "$ZSH_CUSTOM" ]]; then
     ZSH_CUSTOM="$ZSH/custom"
 fi
 
+# Set ZSH_CACHE_DIR to the path where cache files should be created
+# or else we will use the default cache/
+if [[ -z "$ZSH_CACHE_DIR" ]]; then
+  ZSH_CACHE_DIR="$ZSH/cache/"
+fi
+
+
+# Load all of the config files in ~/oh-my-zsh that end in .zsh
+# TIP: Add files you don't want in git to .gitignore
+for config_file ($ZSH/lib/*.zsh); do
+  custom_config_file="${ZSH_CUSTOM}/lib/${config_file:t}"
+  [ -f "${custom_config_file}" ] && config_file=${custom_config_file}
+  source $config_file
+done
+
 
 is_plugin() {
   local base_dir=$1
@@ -38,19 +50,26 @@ for plugin ($plugins); do
 done
 
 # Figure out the SHORT hostname
-if [ -n "$commands[scutil]" ]; then
-  # OS X
-  SHORT_HOST=$(scutil --get ComputerName)
+if [[ "$OSTYPE" = darwin* ]]; then
+  # OS X's $HOST changes with dhcp, etc. Use ComputerName if possible.
+  SHORT_HOST=$(scutil --get ComputerName 2>/dev/null) || SHORT_HOST=${HOST/.*/}
 else
   SHORT_HOST=${HOST/.*/}
 fi
 
 # Save the location of the current completion dump file.
-ZSH_COMPDUMP="${ZDOTDIR:-${HOME}}/.zcompdump-${SHORT_HOST}-${ZSH_VERSION}"
+if [ -z "$ZSH_COMPDUMP" ]; then
+  ZSH_COMPDUMP="${ZDOTDIR:-${HOME}}/.zcompdump-${SHORT_HOST}-${ZSH_VERSION}"
+fi
 
-# Load and run compinit
-autoload -U compinit
-compinit -i -d "${ZSH_COMPDUMP}"
+# If completion insecurities exist, warn the user without enabling completions.
+if ! compaudit &>/dev/null; then
+  # This function resides in the "lib/compfix.zsh" script sourced above.
+  handle_completion_insecurities
+# Else, enable and cache completions to the desired file.
+else
+  compinit -d "${ZSH_COMPDUMP}"
+fi
 
 # Load all of the plugins that were defined in ~/.zshrc
 for plugin ($plugins); do