add more restic helper scripts

roles/restic/files/restic-job.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Ansible managed
+
+error_exit() {
+    printf "%s\n" "$1"
+    exit 1
+}
+
+RESTIC_ETC_PATH=${RESTIC_ETC_PATH:-/etc/restic}
+RESTIC_PATH=${RESTIC_PATH:-/usr/local/bin/restic}
+
+MAX_ATTEMPTS=60
+NICE="ionice -c2 nice -n19"
+JOB=$1
+
+if [ -z "$JOB" ]; then
+    error_exit "job is missing"
+fi
+
+JOB_PATH="${RESTIC_ETC_PATH}/jobs/${JOB}"
+JOB_ENV="${JOB_PATH}/env.sh"
+
+if [ ! -r "$JOB_ENV" ]; then
+    error_exit "${JOB_ENV} does not exist"
+fi
+
+# shellcheck disable=SC1090
+. "$JOB_ENV"
+
+if [ -z "${REPO+x}" ]; then
+    error_exit "\$REPO is not set"
+fi
+
+REPO_PATH="${RESTIC_ETC_PATH}/repos/${REPO}"
+REPO_ENV="${REPO_PATH}/env.sh"
+
+if [ ! -r "$REPO_ENV" ]; then
+    error_exit "${REPO_ENV} does not exist"
+fi
+
+# shellcheck disable=SC1090
+. "$REPO_ENV"
+
+EXCLUDE_PATH="${JOB_PATH}/exclude.txt"
+
+if [ -z "${PATHS+x}" ]; then
+    error_exit "\$PATHS is not set"
+fi
+
+counter=0
+sleep=1
+rc=1
+
+until [ $counter -eq "$MAX_ATTEMPTS" ] || [ $rc -eq 0 ]; do
+    if [ -r "$EXCLUDE_PATH" ]; then
+        $NICE "$RESTIC_PATH" backup -q --exclude-file="${EXCLUDE_PATH}" "${PATHS}"
+    else
+        $NICE "$RESTIC_PATH" backup -q "${PATHS}"
+    fi
+
+    rc=$?
+
+    if [ $rc -ne 0 ]; then
+      sleep=$((counter * 5))
+      printf "sleeping for %d seconds (%d)\n" $sleep $counter
+      sleep $sleep
+    fi
+
+    (( counter++ ))
+done
+
+if [ $rc -ne 0 ] && [ $counter -eq "$MAX_ATTEMPTS" ]; then
+  printf "restic job timed out, exiting\n"
+fi

roles/restic/files/restic-repo.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Ansible managed
+
+error_exit() {
+    printf "%s\n" "$1"
+    exit 1
+}
+
+RESTIC_ETC_PATH=${RESTIC_ETC_PATH:-/etc/restic}
+RESTIC_PATH=${RESTIC_PATH:-/usr/local/bin/restic}
+
+if [ $# -lt 2 ]; then
+    error_exit "missing arguments"
+fi
+
+REPO=$1
+shift
+
+REPO_PATH="${RESTIC_ETC_PATH}/repos/${REPO}"
+REPO_ENV="${REPO_PATH}/env.sh"
+
+if [ ! -r "$REPO_ENV" ]; then
+    error_exit "${REPO_ENV} does not exist"
+fi
+
+# shellcheck disable=SC1090
+. "$REPO_ENV"
+
+$RESTIC_PATH "$@"

roles/restic/files/restic-tidy.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+
+# {{ ansible_managed }}
+
+error_exit() {
+    printf "%s\n" "$1"
+    exit 1
+}
+
+RESTIC_ETC_PATH=${RESTIC_ETC_PATH:-/etc/restic}
+RESTIC_PATH=${RESTIC_PATH:-/usr/local/bin/restic}
+
+MAX_ATTEMPTS=60
+MAX_SLEEP=43200  # 12 hours
+REPO=$1
+
+if [ -z "$REPO" ]; then
+    error_exit "repo is missing"
+fi
+
+REPO_PATH="${RESTIC_ETC_PATH}/repos/${REPO}"
+REPO_ENV="${REPO_PATH}/env.sh"
+
+if [ ! -r "$REPO_ENV" ]; then
+    error_exit "${REPO_ENV} does not exist"
+fi
+
+# shellcheck disable=SC1090
+. "$REPO_ENV"
+
+KEEP_HOURLY=${KEEP_HOURLY:-24}
+KEEP_DAILY=${KEEP_DAILY:-7}
+KEEP_WEEKLY=${KEEP_WEEKLY:-5}
+KEEP_MONTHLY=${KEEP_MONTHLY:-12}
+KEEP_YEARLY=${KEEP_YEARLY:-10}
+
+# initial sleep
+sleep "$(((RANDOM % MAX_SLEEP) + 1))s"
+
+counter=0
+sleep=1
+rc=1
+
+until [ $counter -eq "$MAX_ATTEMPTS" ] || [ $rc -eq 0 ]; do
+    $RESTIC_PATH forget \
+        --quiet \
+        --host "$(hostname -f)" \
+        --keep-hourly "$KEEP_HOURLY" \
+        --keep-daily "$KEEP_DAILY" \
+        --keep-weekly "$KEEP_WEEKLY" \
+        --keep-monthly "$KEEP_MONTHLY" \
+        --keep-yearly "$KEEP_YEARLY" \
+        --prune
+
+    rc=$?
+
+    if [ $rc -ne 0 ]; then
+      sleep=$((counter * 5))
+      printf "sleeping for %d seconds (%d)\n" $sleep $counter
+      sleep $sleep
+    fi
+
+    (( counter++ ))
+done
+
+if [ $rc -ne 0 ] && [ $counter -eq "$MAX_ATTEMPTS" ]; then
+    printf "tidy timed out, exiting\n"
+fi