3 files changed, 73 insertions, 0 deletions
diff --git a/gitolite-sync b/gitolite-sync
new file mode 100755
index 0000000..8bedcd2
--- /dev/null
+++ b/gitolite-sync
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+home=$(
+  getent passwd gitolite \
+  | cut -d: -f6
+)
+
+if [ -z "${home}" ] || [ ! -d "${home}" ]; then
+  >&2 echo 'cannot find user gitolite'
+  exit 1
+fi
+
+find "${home}/repositories" \
+  -type d \
+  -name '*.git' \
+  -printf '%p\n' \
+  -prune \
+| while read -r path; do
+  remotes=$(
+    git -C "${path}" remote -v \
+    | grep '[@.]eckner\.net:' \
+    | awk '{print $1}' \
+    | sort -u
+  )
+  if [ -z "${remotes}" ]; then
+    >&2 printf 'Repository "%s" has no backup remotes.\n' \
+      "${path}"
+    continue
+  fi
+  for remote in ${remotes}; do
+    git -C "${path}" fetch "${remote}" -p
+  done
+  branches=$(
+    git -C "${path}" branch --list \
+    | sed 's/^.\s//'
+  )
+  if [ -n "$(git -C "${path}" tag -l)" ]; then
+    has_tags=true
+  else
+    has_tags=false
+  fi
+  if [ -z "${branches}" ] && ! ${has_tags}; then
+    >&2 printf 'Repository "%s" has no branches and no tags.\n' \
+      "${path}"
+    continue
+  fi
+  for remote in ${remotes}; do
+    if ${has_tags}; then
+      git -C "${path}" push --tags
+    fi
+    if [ -z "${branches}" ]; then
+      continue
+    fi
+    for branch in ${branches}; do
+      git -C "${path}" push "${remote}" "${branch}"
+    done
+  done
+done
diff --git a/gitolite-sync.service b/gitolite-sync.service
new file mode 100644
index 0000000..f85eb43
--- /dev/null
+++ b/gitolite-sync.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=synchronize gitolite repositories to and from backup location(s)
+
+[Service]
+User=gitolite
+ExecStart=/usr/bin/gitolite-sync
diff --git a/gitolite-sync.timer b/gitolite-sync.timer
new file mode 100644
index 0000000..4a4e9bc
--- /dev/null
+++ b/gitolite-sync.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=repeatedly synchronize gitolite repositories
+
+[Timer]
+RandomizedDelaySec=10min
+OnCalendar=*-*-* *:00/10:00
+
+[Install]
+WantedBy=timers.target