Always create apt-ftparchive.conf.

The Releases file(s) and other bits for EOL-ed distros such as Ubuntu
Vivid should remain untouched when we are releasing debs.

However, few files in https://apt.dockerproject.org/repo/dists/ubuntu-vivid/
were being updated for the docker 1.10 release including the Release files.
This is due to apt-ftparchive generating index files for vivid as well,
due to the stale apt-ftparchive.conf

This change always creates config using suites in contrib/reprepro/suites.sh.

Signed-off-by: Anusha Ragunathan <anusha@docker.com>

hack/make/release-deb

@@ -49,41 +49,41 @@ if [[ ! "${components[*]}" =~ $component ]] ; then
 	components+=( $component )
 fi
 
-# create/update apt-ftparchive file
-if [ ! -f "$APTDIR/conf/apt-ftparchive.conf" ]; then
-	cat <<-EOF > "$APTDIR/conf/apt-ftparchive.conf"
-	Dir {
-		ArchiveDir "${APTDIR}";
-		CacheDir "${APTDIR}/db";
-	};
-
-	Default {
-		Packages::Compress ". gzip bzip2";
-		Sources::Compress ". gzip bzip2";
-		Contents::Compress ". gzip bzip2";
-	};
-
-	TreeDefault {
-		BinCacheDB "packages-\$(SECTION)-\$(ARCH).db";
-		Directory "pool/\$(SECTION)";
-		Packages "\$(DIST)/\$(SECTION)/binary-\$(ARCH)/Packages";
-		SrcDirectory "pool/\$(SECTION)";
-		Sources "\$(DIST)/\$(SECTION)/source/Sources";
-		Contents "\$(DIST)/\$(SECTION)/Contents-\$(ARCH)";
-		FileList "$APTDIR/\$(DIST)/\$(SECTION)/filelist";
-	};
-	EOF
-
-	for suite in $(exec contrib/reprepro/suites.sh); do
-		cat <<-EOF
-		Tree "dists/${suite}" {
-			Sections "${components[*]}";
-			Architectures "${arches[*]}";
-		}
+# create apt-ftparchive file on every run. This is essential to avoid
+# using stale versions of the config file that could cause unnecessary
+# refreshing of bits for EOL-ed releases.
+cat <<-EOF > "$APTDIR/conf/apt-ftparchive.conf"
+Dir {
+	ArchiveDir "${APTDIR}";
+	CacheDir "${APTDIR}/db";
+};
+
+Default {
+	Packages::Compress ". gzip bzip2";
+	Sources::Compress ". gzip bzip2";
+	Contents::Compress ". gzip bzip2";
+};
+
+TreeDefault {
+	BinCacheDB "packages-\$(SECTION)-\$(ARCH).db";
+	Directory "pool/\$(SECTION)";
+	Packages "\$(DIST)/\$(SECTION)/binary-\$(ARCH)/Packages";
+	SrcDirectory "pool/\$(SECTION)";
+	Sources "\$(DIST)/\$(SECTION)/source/Sources";
+	Contents "\$(DIST)/\$(SECTION)/Contents-\$(ARCH)";
+	FileList "$APTDIR/\$(DIST)/\$(SECTION)/filelist";
+};
+EOF
+
+for suite in $(exec contrib/reprepro/suites.sh); do
+	cat <<-EOF
+	Tree "dists/${suite}" {
+		Sections "${components[*]}";
+		Architectures "${arches[*]}";
+	}
 
-		EOF
-	done >> "$APTDIR/conf/apt-ftparchive.conf"
-fi
+	EOF
+done >> "$APTDIR/conf/apt-ftparchive.conf"
 
 if [ ! -f "$APTDIR/conf/docker-engine-release.conf" ]; then
 	cat <<-EOF > "$APTDIR/conf/docker-engine-release.conf"