From 3f726c475192da8167b18baaa5d1ba0402ebcd0f Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Fri, 10 Oct 2014 17:13:44 -0400
Subject: rewrite bin/config-path

---
 .local/bin/config-path | 67 +++++++++++++++++++++++++++++++-------------------
 1 file changed, 42 insertions(+), 25 deletions(-)

(limited to '.local')

diff --git a/.local/bin/config-path b/.local/bin/config-path
index 6b9019c..f4c2342 100755
--- a/.local/bin/config-path
+++ b/.local/bin/config-path
@@ -1,16 +1,22 @@
 #!/bin/bash
 
-# All the prefixes to consider
-prefixes=(
-	"$HOME"
-	"$HOME/.local.`uname -m`"
-	"$HOME/.local"
-	"$HOME/.prefix.`uname -m`"
-	"$HOME/.prefix"
-	"$HOME"/.gem/ruby/*
-)
-
-######################################################################
+the_guts() {
+	# Add generic prefixes
+	add_prefix "$HOME"
+	add_prefix "$HOME/.local.$(uname -m)"
+	add_prefix "$HOME/.local"
+	add_prefix "$HOME/.prefix.$(uname -m)"
+	add_prefix "$HOME/.prefix"
+
+	# Add rubygem prefixes
+	local dir
+	for dir in "$HOME"/.gem/*; do
+		# Only add it if we have that type of ruby
+		if type "${dir##*/}" &>/dev/null; then
+			add_prefix "$dir"/*
+		fi
+	done
+}
 
 in_array() {
 	local needle=$1; shift
@@ -22,30 +28,41 @@ in_array() {
 	return 1
 }
 
-# Import existing values
-IFS=: paths=($PATH)
-IFS=: rubylibs=($RUBYLIB)
+add_prefix() {
+	local prefix=$1
+	local dir
 
-# Scan through prefixes
-for prefix in "${prefixes[@]}"; do
 	# PATH
 	dir="$prefix/bin"
 	if [[ -d "$dir" ]] && ! in_array "$dir" "${paths[@]}"; then
 		paths=("$dir" "${paths[@]}")
 	fi
+
 	# RUBYLIB
 	dir="$prefix/lib"
 	if [[ -d "$dir" ]] && ! in_array "$dir" "${rubylibs[@]}"; then
 		rubylibs=("$dir" "${rubylibs[@]}")
 	fi
-done
+}
 
-# Finally, print our values
-IFS=: PATH="${paths[*]}"
-IFS=: RUBYLIB="${rubylibs[*]}"
+main() {
+	# Import existing values
+	declare -ga paths rubylibs
+	IFS=: paths=($PATH)
+	IFS=: rubylibs=($RUBYLIB)
+
+	the_guts
+
+	# Put our values into the env variables
+	IFS=: PATH="${paths[*]}"
+	IFS=: RUBYLIB="${rubylibs[*]}"
+
+	# Finally, print the values
+	# The sed bit here is the only time we call an external program
+	{
+		declare -p PATH
+		declare -p RUBYLIB
+	} | sed 's/^declare \(-\S* \)*//'
+}
 
-# The sed bit here is the only time we call an external program
-{
-	declare -p PATH
-	declare -p RUBYLIB
-} | sed 's/^declare \(-\S* \)*//'
+main
-- 
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