From debfc714aa5de1ebbff5dcd988377d3aeed0797c Mon Sep 17 00:00:00 2001
From: Salt <rehashedsalt@cock.li>
Date: Tue, 30 Jun 2020 06:47:31 -0500
Subject: [PATCH] Template out a backup module for desktops Kinda primitive,
 but the idea is that I can just link shit into ~/.backups and it'll get
 backed up

---
 roles/desktop/tasks/main.yml      | 113 ++++++++++++++++--------------
 roles/desktop/templates/backup.sh |  41 +++++++++++
 2 files changed, 100 insertions(+), 54 deletions(-)
 create mode 100644 roles/desktop/templates/backup.sh

diff --git a/roles/desktop/tasks/main.yml b/roles/desktop/tasks/main.yml
index 1d0f846..3364012 100644
--- a/roles/desktop/tasks/main.yml
+++ b/roles/desktop/tasks/main.yml
@@ -3,58 +3,63 @@
 ---
 - name: Configure desktop system
   block:
-  - name: Create config directories
-    file:
-      path: "{{ item }}"
-      state: directory
-      recurse: yes
-    loop:
-      - "/etc/X11/xorg.conf.d"
-  - name: Nuke some configs
-    file:
-      path: "{{ item }}"
-      state: absent
-    loop:
-      # Works around a bug where this causes failed logins
-      - "/etc/X11/Xsession.d/70im-config_launch"
-  - name: Copy system configs
-    template:
-      src: "{{ item.src }}"
-      dest: "{{ item.dest }}"
-      mode: "{{ item.mode }}"
-    loop:
-      - { src: "sshd_config", dest: "/etc/ssh/sshd_config", mode: "0644" }
-      - { src: "nomouseaccel.conf", dest: "/etc/X11/xorg.conf.d/90-mouse-acceleration.conf", mode: "0644" }
-      - { src: "i3.desktop", dest: "/usr/share/xsessions/i3-custom.desktop", mode: "0644" }
-      - { src: "startx.desktop", dest: "/usr/share/xsessions/startx-custom.desktop", mode: "0644" }
-  - name: Copy udev rules
-    template:
-      src: "{{ item.src }}"
-      dest: "{{ item.dest }}"
-      mode: "{{ item.mode }}"
-    loop:
-      - { src: "g810-led.rules", dest: "/etc/udev/rules.d/50-g810-led.rules", mode: "0644" }
-      - { src: "switch-rcm.rules", dest: "/etc/udev/rules.d/50-switch-rcm.rules", mode: "0644" }
-    notify: reload udev
-  - name: Configure SSH
-    include_tasks: sshd.yml
-  - name: Configure system packages
-    include_tasks: packages.yml
-  - name: Configure Mopidy
-    include_tasks: mopidy.yml
-  - name: Stop services
-    systemd:
-      name: "{{ item }}"
-      enabled: no
-      state: stopped
-    loop:
-      - mopidy.service
-      - motd-news.timer
-  - name: Start services
-    systemd:
-      name: "{{ item }}"
-      enabled: yes
-      state: started
-    loop:
-      - syncthing@salt.service
+    - name: Create config directories
+      file:
+        path: "{{ item }}"
+        state: directory
+        recurse: yes
+      loop:
+        - "/etc/X11/xorg.conf.d"
+    - name: Nuke some configs
+      file:
+        path: "{{ item }}"
+        state: absent
+      loop:
+        # Works around a bug where this causes failed logins
+        - "/etc/X11/Xsession.d/70im-config_launch"
+    - name: Copy system configs
+      template:
+        src: "{{ item.src }}"
+        dest: "{{ item.dest }}"
+        mode: "{{ item.mode }}"
+      loop:
+        - { src: "sshd_config", dest: "/etc/ssh/sshd_config", mode: "0644" }
+        - { src: "nomouseaccel.conf", dest: "/etc/X11/xorg.conf.d/90-mouse-acceleration.conf", mode: "0644" }
+        - { src: "i3.desktop", dest: "/usr/share/xsessions/i3-custom.desktop", mode: "0644" }
+        - { src: "startx.desktop", dest: "/usr/share/xsessions/startx-custom.desktop", mode: "0644" }
+    - name: Copy udev rules
+      template:
+        src: "{{ item.src }}"
+        dest: "{{ item.dest }}"
+        mode: "{{ item.mode }}"
+      loop:
+        - { src: "g810-led.rules", dest: "/etc/udev/rules.d/50-g810-led.rules", mode: "0644" }
+        - { src: "switch-rcm.rules", dest: "/etc/udev/rules.d/50-switch-rcm.rules", mode: "0644" }
+      notify: reload udev
+    - name: Configure SSH
+      include_tasks: sshd.yml
+    - name: Configure system packages
+      include_tasks: packages.yml
+    - name: Configure Mopidy
+      include_tasks: mopidy.yml
+    - name: Stop services
+      systemd:
+        name: "{{ item }}"
+        enabled: no
+        state: stopped
+      loop:
+        - mopidy.service
+        - motd-news.timer
+    - name: Start services
+      systemd:
+        name: "{{ item }}"
+        enabled: yes
+        state: started
+      loop:
+        - syncthing@salt.service
+    - name: Template out backup module
+      template:
+        src: "backup.sh"
+        dest: "/opt/backups/modules/desktop.sh"
+        mode: "0600"
   become: yes
diff --git a/roles/desktop/templates/backup.sh b/roles/desktop/templates/backup.sh
new file mode 100644
index 0000000..4b2ddf4
--- /dev/null
+++ b/roles/desktop/templates/backup.sh
@@ -0,0 +1,41 @@
+#! /bin/bash
+#
+# desktop.sh
+# Backup script for desktops. Meant to be sourced by our main backup script
+# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
+#
+# Distributed under terms of the MIT license.
+#
+
+set -e
+
+export OUTDIR="$BACKUPSDIR/{{ dokuwiki_url }}"
+retention=7 # 7-day retention period
+
+# Sanity checks
+if [ -z "$BACKUPSDIR" ]; then
+	log "BACKUPSDIR was undefined. Run the main backup script instead of this one."
+	return 1
+fi
+if ! [ -d "$OUTDIR" ]; then
+	if ! mkdir "$OUTDIR"; then
+		log "Unable to find or create output directory: $OUTDIR"
+		return 2
+	fi
+fi
+
+# Purge oldest backup if we need to
+currentbackupcount="$(ls -1 "$OUTDIR" | wc -l)"
+if (( currentbackupcount >= retention )); then
+	lastbackup="$(find "$OUTDIR" -name \*.tar.gz 2>/dev/null | sort | head -n 1)"
+	if [ -f "$lastbackup" ]; then
+		log "Removing old backup: $lastbackup"
+		rm "$lastbackup"
+	fi
+fi
+# WE MAKE BACKUP NOW SERGEI
+for dir in /home/*; do
+	username="$(basename -- "$dir")"
+	tar czhf "$OUTDIR/desktop-$username-{{ inventory_hostname }}-$(date -Iseconds).tar.gz" "$dir/.backup"
+done
+