From b8fb9e8ae492c1d19a9c084a2469dc09c026e072 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Sat, 27 Jul 2013 17:49:28 -0400
Subject: lib/db.sh: Make functions more robust.

---
diff --git a/lib/db.sh b/lib/db.sh
index 7533126..27a1ae8 100644
--- a/lib/db.sh
+++ b/lib/db.sh
@@ -139,6 +139,9 @@ db_get_archplats()
 	dir="${opt_base_dir}/feeds/${chan}/${dist}/.db"
 	dir="${dir}/$(hash_name "${source}")/${source}"
 	for dir in "${dir}/"*_*/; do
+		if [ ! -d "${dir}" ]; then
+			continue
+		fi
 		dir="${dir%/}"
 		dir="${dir##*/}"
 		printf '%s %s\n' "${dir%%_*}" "${dir#*_}"
@@ -216,8 +219,13 @@ db_inc_references()
 
 	dir="${opt_base_dir}/pool/$(hash_name "${source}")/${source}/.db"
 	dir="${dir}/${binver}_${arch}_${plat}"
-	refs="$(cat "${dir}/references")"
-	refs=$(($refs + 1))
+	if [ -f "${dir}/references" ]; then
+		refs="$(cat "${dir}/references")"
+		refs=$(($refs + 1))
+	else
+		refs=1
+		mkdir -p "${dir}"
+	fi
 	printf '%d\n' "${refs}" >"${dir}/references"
 	printf '%d\n' "${refs}"
 
@@ -235,8 +243,12 @@ db_dec_references()
 
 	dir="${opt_base_dir}/pool/$(hash_name "${source}")/${source}/.db"
 	dir="${dir}/${binver}_${arch}_${plat}"
-	refs="$(cat "${dir}/references")"
-	refs=$(($refs - 1))
+	if [ -f "${dir}/references" ]; then
+		refs="$(cat "${dir}/references")"
+		refs=$(($refs - 1))
+	else
+		refs=0
+	fi
 	if [ ${refs} -eq 0 ]; then
 		rm -f "${dir}/references"
 	else
--
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