From ca3e04971996ebe2eebf88775e96bbf547aa0abe Mon Sep 17 00:00:00 2001
From: Luke Shumaker <shumakl@purdue.edu>
Date: Mon, 9 Feb 2015 22:17:02 -0500
Subject: path.sh, config-path: don't rely on external programs (sed)

---
 .config/login.d/00_path.sh |  4 +---
 .local/bin/config-path     | 16 +++++++---------
 2 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/.config/login.d/00_path.sh b/.config/login.d/00_path.sh
index a45f8fd..f4ca3a6 100644
--- a/.config/login.d/00_path.sh
+++ b/.config/login.d/00_path.sh
@@ -1,9 +1,7 @@
-#!/bin/sh
-
 if type config-path &>/dev/null; then
 	config_path=config-path
 else
 	# Bootstrap finding config-path
 	config_path="$HOME/.local/bin/config-path"
 fi
-eval "$("$config_path" | sed 's/^/export /')"
+eval "$(IFS=$'\n'; lines=($("$config_path")); printf -- 'export %s\n' "${lines[@]}")"
diff --git a/.local/bin/config-path b/.local/bin/config-path
index 7cd1fcd..1d4d4d1 100755
--- a/.local/bin/config-path
+++ b/.local/bin/config-path
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # All the prefixes to consider
 prefixes=(
@@ -61,14 +61,12 @@ main() {
 	done
 
 	# Finally, print the values
-	# The `sed` bit here is the only time we call an external program
-	{
-		var_done PATH
-		var_done MANPATH
-		var_done LD_LIBRARY_PATH
-		var_done RUBYLIB
-		var_done PERL5LIB
-	} | sed 's/^declare \(-\S* \)*//'
+	lines=()
+	for var in PATH MANPATH LD_LIBRARY_PATH RUBYLIB PERL5LIB; do
+		lines+=("$(var_done "$var")")
+	done
+	shopt -s extglob
+	printf -- '%s\n' "${lines[@]##declare *(-+([[:graph:]]) )}"
 }
 
 main "$@"
-- 
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