From d91dca49902093b67d62179ca6ae857693815e11 Mon Sep 17 00:00:00 2001
From: Bodaniel Jeanes <me@bjeanes.com>
Date: Wed, 4 Jan 2012 21:41:41 -0600
Subject: [PATCH] Dynamically build path without duplicates and only for
 existing directories

---
 shells/bootstrap.sh |  4 +---
 shells/path.sh      | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 3 deletions(-)
 create mode 100644 shells/path.sh

diff --git a/shells/bootstrap.sh b/shells/bootstrap.sh
index 78ea2b8..f880a77 100644
--- a/shells/bootstrap.sh
+++ b/shells/bootstrap.sh
@@ -1,8 +1,6 @@
 COMMON_SHELL_FILES="$SHELL_FILES/../common"
 
-# TODO: Remove duplicates from the PATH
-PATH="/usr/local/bin:/usr/local/sbin:/usr/X11/bin:/usr/bin:/usr/sbin:/bin:/sbin:${PATH}"
-
+source "$SHELL_FILES/../path.sh"
 source "$SHELL_FILES/../tmux.sh"
 
 CDPATH=".:${HOME}"
diff --git a/shells/path.sh b/shells/path.sh
new file mode 100644
index 0000000..c0a125e
--- /dev/null
+++ b/shells/path.sh
@@ -0,0 +1,20 @@
+function __append_path {
+  if [ -z "$(eval echo \$$1)" ]; then
+    eval "$1=\"$2\""
+  else
+    eval "$1=\"\$$1:$2\""
+  fi
+}
+
+[ -d "$HOME/bin" ]       && __append_path "new_path" "$HOME/bin"
+[ -d "$DOT_FILES/bin" ]  && __append_path "new_path" "$DOT_FILES/bin"
+[ -d '/usr/local/bin' ]  && __append_path "new_path" "/usr/local/bin"
+[ -d '/usr/local/sbin' ] && __append_path "new_path" "/usr/local/sbin"
+[ -d '/opt/local/bin' ]  && __append_path "new_path" "/opt/local/bin"
+[ -d '/opt/local/sbin' ] && __append_path "new_path" "/opt/local/sbin"
+[ -d '/usr/X11/bin' ]    && __append_path "new_path" "/usr/X11/bin"
+[ -d '/usr/bin' ]        && __append_path "new_path" "/usr/bin"
+[ -d '/usr/sbin' ]       && __append_path "new_path" "/usr/sbin"
+[ -d '/bin' ]            && __append_path "new_path" "/bin"
+[ -d '/sbin' ]           && __append_path "new_path" "/sbin"
+PATH="$new_path"