From 81c93a1bf8ad771bf88d883123aace2d673ed458 Mon Sep 17 00:00:00 2001
From: Daylin Morgan <daylinmorgan@gmail.com>
Date: Tue, 19 Dec 2023 23:14:16 -0600
Subject: [PATCH] restic backups ftw

---
 home/private_bin/executable_restic-othalan    | 32 +++++++++++++++++++
 home/private_dot_config/restic/othalan.env    | 11 +++++++
 .../systemd/user/restic-backup.service        | 21 ++++++++++++
 .../systemd/user/restic-backup.timer          |  9 ++++++
 .../systemd/user/restic-prune.service         |  7 ++++
 .../systemd/user/restic-prune.timer           |  9 ++++++
 6 files changed, 89 insertions(+)
 create mode 100644 home/private_bin/executable_restic-othalan
 create mode 100644 home/private_dot_config/restic/othalan.env
 create mode 100644 home/private_dot_config/systemd/user/restic-backup.service
 create mode 100644 home/private_dot_config/systemd/user/restic-backup.timer
 create mode 100644 home/private_dot_config/systemd/user/restic-prune.service
 create mode 100644 home/private_dot_config/systemd/user/restic-prune.timer

diff --git a/home/private_bin/executable_restic-othalan b/home/private_bin/executable_restic-othalan
new file mode 100644
index 0000000..3c5a18d
--- /dev/null
+++ b/home/private_bin/executable_restic-othalan
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+set -a
+source "$HOME/.config/restic/othalan.env"
+declare -a flags
+
+# if [[ "$1" == "backup" ]]; then
+#   flags=(
+#     "--exclude-file" "$HOME/.config/restic/excludes.txt"
+#     "--exclude-file" "$HOME/.conda/environments.txt"
+#   )
+# fi
+#
+# echo "${flags[@]}"
+# assumes subcommand always comes first
+case $1 in
+  -*) restic "$@" && exit "$?";;
+  backup) cmd=backup; shift;;
+  *) cmd="$1"; shift;;
+esac
+
+if [[ $cmd == "backup" ]]; then
+  flags=(
+    "--exclude-file" "$HOME/.config/restic/excludes.txt"
+    "--exclude-file" "$HOME/.conda/environments.txt"
+  )
+fi
+
+
+# echo restic "$@" "${flags[@]}"
+
+restic "$cmd" "${flags[@]}" "$@"
diff --git a/home/private_dot_config/restic/othalan.env b/home/private_dot_config/restic/othalan.env
new file mode 100644
index 0000000..a06a878
--- /dev/null
+++ b/home/private_dot_config/restic/othalan.env
@@ -0,0 +1,11 @@
+RESTIC_REPOSITORY=rclone:g:othalan
+RESTIC_PASSWORD_FILE=/home/daylin/.config/restic/othalan-pass
+BACKUP_EXCLUDES="
+--exclude-file /home/daylin/.config/restic/excludes.txt
+--exclude-file /home/daylin/.conda/environments.txt
+"
+RETENTION_DAYS=7
+RETENTION_WEEKS=4
+RETENTION_MONTHS=6
+RETENTION_YEARS=3
+BACKUP_PATHS="/home/daylin/dev /home/daylin/stuff"
diff --git a/home/private_dot_config/systemd/user/restic-backup.service b/home/private_dot_config/systemd/user/restic-backup.service
new file mode 100644
index 0000000..c1feaa7
--- /dev/null
+++ b/home/private_dot_config/systemd/user/restic-backup.service
@@ -0,0 +1,21 @@
+;ref: https://fedoramagazine.org/automate-backups-with-restic-and-systemd/
+
+[Unit]
+Description=Restic backup service
+
+[Service]
+Type=oneshot
+ExecStart=restic backup \
+  --verbose \
+  --one-file-system \
+  --tag systemd.timer \
+  $BACKUP_EXCLUDES $BACKUP_PATHS
+ExecStartPost=restic forget \
+  --verbose \
+  --tag systemd.timer \
+  --group-by "paths,tags" \
+  --keep-daily $RETENTION_DAYS \
+  --keep-weekly $RETENTION_WEEKS \
+  --keep-monthly $RETENTION_MONTHS \
+  --keep-yearly $RETENTION_YEARS
+EnvironmentFile=%h/.config/restic/othalan.env
diff --git a/home/private_dot_config/systemd/user/restic-backup.timer b/home/private_dot_config/systemd/user/restic-backup.timer
new file mode 100644
index 0000000..bc8b203
--- /dev/null
+++ b/home/private_dot_config/systemd/user/restic-backup.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=Backup with restic daily
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+
+[Install]
+WantedBy=timers.target
diff --git a/home/private_dot_config/systemd/user/restic-prune.service b/home/private_dot_config/systemd/user/restic-prune.service
new file mode 100644
index 0000000..d5d8249
--- /dev/null
+++ b/home/private_dot_config/systemd/user/restic-prune.service
@@ -0,0 +1,7 @@
+[Unit]
+Description=Restic backup service (data pruning)
+
+[Service]
+Type=oneshot
+ExecStart=restic prune
+EnvironmentFile=%h/.config/restic/othalan.env
diff --git a/home/private_dot_config/systemd/user/restic-prune.timer b/home/private_dot_config/systemd/user/restic-prune.timer
new file mode 100644
index 0000000..2898d26
--- /dev/null
+++ b/home/private_dot_config/systemd/user/restic-prune.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=Prune data from the restic repository monthly
+
+[Timer]
+OnCalendar=monthly
+Persistent=true
+
+[Install]
+WantedBy=timers.target