From a21fbb20765c0a1d89b8b398b279404b2927c294 Mon Sep 17 00:00:00 2001
From: "Kyle J. McKay" <mackyle@gmail.com>
Date: Thu, 23 Apr 2015 19:51:18 -0700
Subject: [PATCH] sed/grep: stop using [:space:]

POSIX requires support for [[:space:]] to match any space character
even in sed expressions.  However, some broken systems do not support
that.

Instead define a `$tab` variable in shlib.sh that contains a single
tab and then use [ $tab] inside "" instead.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
---
 jobd/gc.sh     |  2 +-
 shlib.sh       |  4 +++-
 taskd/clone.sh | 10 +++++-----
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/jobd/gc.sh b/jobd/gc.sh
index d704bea..caffccb 100755
--- a/jobd/gc.sh
+++ b/jobd/gc.sh
@@ -440,7 +440,7 @@ if [ ! -s objects/info/alternates ] && [ -n "$var_have_git_172" ]; then
 	if [ -n "$pkfound" -a -n "$pkhead" ]; then
 		{
 			echo "# v2 git bundle"
-			sed -ne "/^$octet20 refs\/[^ 	]*\$/ p" < packed-refs
+			sed -ne "/^$octet20 refs\/[^ $tab]*\$/ p" < packed-refs
 			echo "$pkhead HEAD"
 			echo ""
 		} > "$pkbase.bndl"
diff --git a/shlib.sh b/shlib.sh
index 560e1e8..0535cc1 100644
--- a/shlib.sh
+++ b/shlib.sh
@@ -8,6 +8,8 @@ octet='[0-9a-f][0-9a-f]'
 octet4="$octet$octet$octet$octet"
 octet19="$octet4$octet4$octet4$octet4$octet$octet$octet"
 octet20="$octet4$octet4$octet4$octet4$octet4"
+# tab
+tab="$(printf '\t')"
 
 vcmp() {
 	# Compare $1 to $2 each of which must match \d+(\.\d+)*
@@ -316,7 +318,7 @@ is_git_dir() {
 		$octet20)
 			return 0;;
 		ref:*)
-			_hr="${_hr##ref:*[[:space:]]}"
+			_hr="${_hr##ref:*[ $tab]}"
 			case "$_hr" in "refs/"?*) return 0;; esac
 	esac
 	return 1
diff --git a/taskd/clone.sh b/taskd/clone.sh
index 3a9c640..952bfe0 100755
--- a/taskd/clone.sh
+++ b/taskd/clone.sh
@@ -277,7 +277,7 @@ case "$url" in
 		if [ -s .refs-temp ]; then
 			# Nothing to do unless the remote repository has at least 1 ref
 			# See if we got a HEAD ref
-			head="$(grep -E "^$octet20[[:space:]]+HEAD\$" <.refs-temp | awk '{print $1}')"
+			head="$(grep -E "^$octet20[ $tab]+HEAD\$" <.refs-temp | awk '{print $1}')"
 			# If the remote has HEAD set to a symbolic ref that does not exist
 			# then we will not receive a HEAD ref in the ls-remote output
 			headref=
@@ -285,8 +285,8 @@ case "$url" in
 			symrefcap=
 			if [ -n "$head" ]; then
 				symrefcap="$(sed -ne <.pkts-temp \
-					'/packet:.*git<.*[[:space:]]symref=HEAD:refs\/heads\/[^[:space:]][^[:space:]]*/'"\
-					"'{s/^.*[[:space:]]symref=HEAD:\(refs\/heads\/[^[:space:]][^[:space:]]*\).*$/\1/;p;}')"
+					"/packet:.*git<.*[ $tab]symref="'HEAD:refs\/heads\/'"[^ $tab]/\
+					{s/^.*[ $tab]symref="'HEAD:\(refs\/heads\/'"[^ $tab][^ $tab]*"'\).*$/\1/;p;}')"
 				# prefer $symrefcap (refs/heads/master if no $symrefcap) if it
 				# matches HEAD otherwise take the first refs/heads/... match
 				matchcnt=0
@@ -298,7 +298,7 @@ case "$url" in
 					fi
 					[ "$headref" = "${symrefcap:-refs/heads/master}" -a $matchcnt -gt 1 ] && break
 				done <<-EOT
-				$(grep -E "^$head[[:space:]]+refs/heads/[^[:space:]]+\$" <.refs-temp | \
+				$(grep -E "^$head[ $tab]+refs/heads/[^ $tab]+\$" <.refs-temp | \
 					awk '{print $2}')
 				EOT
 				# Warn if there was more than one match and $symrefcap is empty
@@ -323,7 +323,7 @@ case "$url" in
 					fi
 					[ "$headref" = "refs/heads/master" ] && break
 				done <<-EOT
-				$(grep -E "^$octet20[[:space:]]+refs/heads/[^[:space:]]+\$" <.refs-temp | \
+				$(grep -E "^$octet20[ $tab]+refs/heads/[^ $tab]+\$" <.refs-temp | \
 					awk '{print $2}')
 				EOT
 			fi
-- 
2.11.4.GIT