added scheduler script

rsync-tmsched.sh

@@ -0,0 +1,147 @@
+#!/bin/bash
+# shellcheck disable=SC2034
+# vim: set foldlevel=0 foldmethod=marker:
+# Note: This script must be put in the same directory aside rsync-tmbackup.sh
+
+# CONFIGS =====================================================================
+# Some random variables
+BR_DST1="/mnt/BACKUP1"
+BR_DST2="/mnt/BACKUP2"
+
+# Define your own schedule with sched_xxx and use it with [sched]=xxx
+sched_daily() { true; }
+sched_weekly() { [[ "$(date +%u)" == "1" ]]; }
+sched_monthly() { [[ "$(date +%d)" == "01" ]]; }
+
+# Backup System1 root ---------------------------------------------------------
+declare -A conf_System1_DST1=(
+    [src]="/"
+    [dst]="$BR_DST1/Sys1-root"
+)
+declare -a excl_System1_DST1=(
+    "- /swapfile"
+    "- /dev"
+    "- /proc"
+    "- /sys"
+    "- /tmp"
+    "- /run"
+    "- /mnt"
+    "- /media"
+    "- /lost+found"
+    "- /var/lib/dhcpcd/*"
+    "- /var/cache"
+    "- /home/*/.gvfs"
+    "- /home/*/.cache"
+)
+declare -A conf_System1_DST2=(
+    [src]="/"
+    [dst]="$BR_DST2/Sys1-root"
+    # Perform this backup weekly
+    [sched]='weekly'
+)
+declare -a excl_System1_DST2=(
+    "${excl_System1_DST1[@]}"
+    # Also exclude status files for archival backups
+    "- /var/log/"
+    "- /var/lib/"
+    "- /home/*/.local/share/fish/fish_history"
+    "- /home/*/.pyenv/shims/"
+)
+
+# Backup remove server root ---------------------------------------------------
+declare -A conf_Server_DST1=(
+    # Make sure proper ssh key is added and permissions configured
+    [src]="user@server:/"
+    [dst]="$BR_DST1/Server-root"
+    # Specify other options like this
+    ['--id-rsa']="$HOME/.ssh/id_rsa"
+)
+declare -a excl_Server_DST1=(
+    # Home directories
+    "+ /home/*"
+    # Nextcloud data
+    "+ /var/lib/nextcloud"
+    # Exclude useless files
+    "- /home/*/.gvfs"
+    "- /home/*/.cache"
+    # Everything else is excluded
+    "- /*"
+)
+declare -A conf_Server_DST2=(
+    [src]="user@server:/"
+    [dst]="$BR_DST2/Server-root"
+    # Perform this backup monthly
+    [sched]='monthly'
+)
+declare -a excl_Server_DST2=(
+    "${excl_Server_DST1[@]}"
+)
+
+# RSYNC-TMBACKUP WRAPPER ======================================================
+# Don't use conf_*/excl_* as variable names here to avoid naming conflict.
+rscd.main() { # {{{
+    local HERE='' RBKP=''
+    HERE="$(cd "$(dirname "$(realpath "${BASH_SOURCE[0]}")")" && pwd)" || exit 1
+    RBKP="$HERE/rsync-tmbackup.sh"
+    [[ -e "$RBKP" ]] || { echo "$RBKP not found." >&2 && return 1; }
+    [[ -x "$RBKP" ]] || { echo "$RBKP not executable." && return 1; }
+
+    local c_name='' src='' dst='' e_file=''
+    for c_name in "${!conf_@}"; do
+        echo ">> Processing "$'\033[1m'"$c_name"$'\033[0m'
+        local -n c_dict="$c_name"
+        [[ "${c_dict@a}" == A ]] || {
+            echo "$c_name must be an associative array." >&2
+            return 1
+        }
+
+        # Test if backup should be exeucted today
+        [[ -z "${c_dict[sched]}" ]] || {
+            typeset -fp "sched_${c_dict[sched]}" >/dev/null 2>&1 || {
+                echo ">> Warning: sched_${c_dict[sched]} is not a function." >&2
+                echo ">> Warning: skipping ${c_name}." >&2
+                continue
+            }
+            "sched_${c_dict[sched]}" || {
+                echo ">> Not today: skipping ${c_name}." >&2
+                continue
+            }
+        }
+
+        # Generate prerequisites and params
+        local -a args=()
+
+        # 1. Generate options
+        local option=''
+        for option in "${!c_dict[@]}"; do
+            [[ ! $option =~ ^(src|dst|sched)$ ]] || continue
+            args+=("$option" "${c_dict["$option"]}")
+        done
+
+        # 2. Generate src, dst
+        args+=("${c_dict[src]}" "${c_dict[dst]}")
+
+        # 3. Genrate exclude-file (if provided)
+        [[ ! -v "excl_${c_name#conf_}" ]] || {
+            local -n e_list="excl_${c_name#conf_}"
+            [[ "${e_list@a}" == a ]] || {
+                echo ">> Warning: excl_${c_name#conf_} must be an array." >&2
+                echo ">> Warning: skipping ${c_name}." >&2
+                continue
+            }
+
+            e_file=$(mktemp) || exit 1
+            trap 'rm "${e_file:?}"; trap - RETURN;' RETURN
+            (IFS=$'\n' && echo "${e_list[*]}" >|"$e_file")
+            args+=("$e_file")
+        }
+
+        # Perform backup
+        echo ">> Running $RBKP ${args[*]@Q}"
+        "$RBKP" "${args[@]}"
+    done
+} # }}}
+
+# Don't execute backup if sourced
+# shellcheck disable=SC2317
+return 0 2>/dev/null || rscd.main "$@"