From 93888089643b017390538d1f6f3a2d2aa9918851 Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Tue, 3 Sep 2013 20:03:04 -0400
Subject: [PATCH] makepkg: use c-style for loops for integrity checks

These loops already maintain an independent loop counter, so cut out
the middle man. While this change doesn't necessarily require that we
drop support for sparse arrays, we do via this patch. A new lint check
is added in check_sanity to abort when a sparse array is encountered.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
---
 scripts/makepkg.sh.in | 51 ++++++++++++++++++++-----------------------
 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 44d5335b..c5f76714 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -1145,12 +1145,11 @@ generate_checksums() {
 			exit 1 # $E_CONFIG_ERROR
 		fi
 
-		local ct=0
-		local indentsz numsrc=${#source[@]}
+		local indentsz idx numsrc=${#source[@]}
 		printf "%s%n" "${integ}sums=(" indentsz
 
-		local netfile
-		for netfile in "${source[@]}"; do
+		for (( idx = 0; idx < numsrc; i++ )); do
+			local netfile=${source[idx]}
 			local proto sum
 			proto="$(get_protocol "$netfile")"
 
@@ -1171,10 +1170,10 @@ generate_checksums() {
 			esac
 
 			# indent checksum on lines after the first
-			printf "%*s%s" $(( ct ? indentsz : 0 )) '' "'$sum'"
+			printf "%*s%s" $(( idx ? indentsz : 0 )) '' "'$sum'"
 
 			# print a newline on lines before the last
-			(( ++ct < numsrc )) && echo
+			(( ++idx < numsrc )) && echo
 		done
 
 		echo ")"
@@ -1193,39 +1192,31 @@ check_checksums() {
 		if (( ${#integrity_sums[@]} == ${#source[@]} )); then
 			msg "$(gettext "Validating source files with %s...")" "${integ}sums"
 			correlation=1
-			local errors=0
-			local idx=0
-			local file
-			for file in "${source[@]}"; do
-				local found=1
-				file="$(get_filename "$file")"
+			local idx errors=0
+			for (( idx = 0; idx < ${#source[*]}; idx++ )); do
+				local file="$(get_filename "${source[idx]}")"
 				printf '    %s ... ' "$file" >&2
 
-				if [[ ${integrity_sums[$idx]} = 'SKIP' ]]; then
+				if [[ ${integrity_sums[idx]} = 'SKIP' ]]; then
 					printf '%s\n' "$(gettext "Skipped")" >&2
-					idx=$((idx + 1))
 					continue
 				fi
 
 				if ! file="$(get_filepath "$file")"; then
 					printf '%s\n' "$(gettext "NOT FOUND")" >&2
 					errors=1
-					found=0
+					continue
 				fi
 
-				if (( $found )) ; then
-					local expectedsum="${integrity_sums[idx],,}"
-					local realsum="$(openssl dgst -${integ} "$file")"
-					realsum="${realsum##* }"
-					if [[ $expectedsum = "$realsum" ]]; then
-						printf '%s\n' "$(gettext "Passed")" >&2
-					else
-						printf '%s\n' "$(gettext "FAILED")" >&2
-						errors=1
-					fi
+				local expectedsum="${integrity_sums[idx],,}"
+				local realsum="$(openssl dgst -${integ} "$file")"
+				realsum="${realsum##* }"
+				if [[ $expectedsum = "$realsum" ]]; then
+					printf '%s\n' "$(gettext "Passed")" >&2
+				else
+					printf '%s\n' "$(gettext "FAILED")" >&2
+					errors=1
 				fi
-
-				idx=$((idx + 1))
 			done
 
 			if (( errors )); then
@@ -2261,6 +2252,12 @@ check_sanity() {
 		fi
 	done
 
+	local idx=("${!source[@]}")
+	if (( (idx[-1] + 1) != ${#source[*]} )); then
+		error "$(gettext "Sparse arrays are not allowed for source")"
+		ret=1
+	fi
+
 	return $ret
 }