add configure-mirror

1 files changed, 37 insertions, 0 deletions

diff --git a/configure-mirror b/configure-mirror
new file mode 100755
index 0000000..1b7ba55
--- /dev/null
+++ b/configure-mirror
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+function set_baseurl() {
+    local furl="$1"
+    local turl="$2"
+    local name="$3"
+    local file
+
+    if test "$turl" = ""; then
+	echo "# no mirror: $furl (env \$$name)"
+	return
+    fi
+
+    for file in /etc/yum.repos.d/*.repo; do
+	grep -q -e "baseurl=$furl" || continue
+	echo "# mirror: $furl -> $turl ($file)"
+	sed	-i.orig \
+		-e 's/^mirrorlist/#mirrorlist/' \
+		-e 's/^#baseurl/baseurl/' \
+		-e "s|baseurl=${furl}|baseurl=${turl}|" \
+		"$file"
+	diff "${file}.orig" "$file"
+    done
+}
+
+#
+# use fixed (configurable) mirror.
+# be cache proxy friendly.
+#
+set_baseurl http://mirror.centos.org/           "${CENTOS_MIRROR}" CENTOS_MIRROR
+set_baseurl http://download.fedoraproject.org/  "${FEDORA_MIRROR}" FEDORA_MIRROR
+
+#
+# no parallel downloads please.
+#
+grep -q max_parallel_downloads /etc/dnf/dnf.conf ||\
+echo max_parallel_downloads=1 >> /etc/dnf/dnf.conf