From 57f56df53bb63f23b5f4447046a8f9f725162ad9 Mon Sep 17 00:00:00 2001
From: TheMightyV <themightyv@protonmail.com>
Date: Sun, 2 Jan 2022 19:58:23 +0100
Subject: multiple backup destinations

---
 backends/bup.sh | 70 ++++++++++++++++++++++++++++++++++++++++++++-------------
 backends/tar.sh | 49 ++++++++++++++++++++++++++++++++++++----
 2 files changed, 100 insertions(+), 19 deletions(-)

(limited to 'backends')

diff --git a/backends/bup.sh b/backends/bup.sh
index 83e4e98..e51aaf1 100644
--- a/backends/bup.sh
+++ b/backends/bup.sh
@@ -1,23 +1,63 @@
-function create_bup_backup() {
-    BACKUP_DIR="mc-backups"
-    CUR_BACK_DIR="mc-backups/$CUR_YEAR"
-
-    if [ ! -d "$CUR_BACK_DIR" ]; then
-    mkdir -p "$CUR_BACK_DIR"
-    fi
+# use first not-remote backup directory as bup's local repository
+# defaults to ".bup"
+function bup_local() {
+    for BACKUP_DIR in ${BACKUP_DIRS[*]}
+    do
+        if [[ $BACKUP_DIR != *:* ]]; then
+            echo "$BACKUP_DIR"
+            return
+        fi
+    done
+    echo ".bup"
+}
 
-    bup -d "$CUR_BACK_DIR" index "$WORLD_NAME"
+function bup_init() {
+    bup -d "$(bup_local)" index "$WORLD_NAME"
     status=$?
-    if [ $status -eq 1 ]; then
-    bup -d "$CUR_BACK_DIR" init
-    bup -d "$CUR_BACK_DIR" index "$WORLD_NAME"
+    if [ $status -ne 0 ]; then
+        echo "bup: no local repo found, creating..."
+        bup -d "$(bup_local)" init -r "$(bup_local)"
+        echo "bup: created local repo at $(bup_local)"
     fi
+}
+
+function bup_create_backup() {
+    echo "bup: backup started"
+
+    bup -d "$(bup_local)" index "$WORLD_NAME"
 
-    bup -d "$CUR_BACK_DIR" save -n "$BACKUP_NAME" "$WORLD_NAME"
+    # 0 if saved to at least one non-local repository
+    RETCODE=1
+    for BACKUP_DIR in ${BACKUP_DIRS[*]}
+    do
+        echo "bup: backing up to \"$BACKUP_DIR\""
+        # try to save to remote
+        bup -d "$(bup_local)" save -r "$BACKUP_DIR" -n "$BACKUP_NAME" "$WORLD_NAME"
+        # if failed - reinit remote and try again
+        if [ ! $? -eq 0 ]; then
+            echo "bup: failed backing up to \"$BACKUP_DIR\", reinitializing remote..."
+            bup -d "$(bup_local)" init -r "$BACKUP_DIR"
+            if [ ! $? -eq 0 ]; then
+                echo "bup: created remote at \"$BACKUP_DIR\""
+                bup -d "$(bup_local)" save -r "$BACKUP_DIR" -n "$BACKUP_NAME" "$WORLD_NAME"
+            else
+                echo "bup: failed to make remote at \"$BACKUP_DIR\", moving on"
+            fi
+        else
+            if [ "$BACKUP_DIR" = "$(bup_local)" ]; then
+                RETCODE=0
+            fi
+        fi
+    done
 
-    echo "Backup using bup to $CUR_BACK_DIR is complete"
+    echo "bup: backup finished"
+    return $RETCODE
 }
 
-function ls_bup() {
-    bup -d "mc-backups/${CUR_YEAR}" ls "mc-sad-squad/$1"
+function bup_ls() {
+    for BACKUP_DIR in ${BACKUP_DIRS[*]}
+    do
+        echo "bup: backups in \"$BACKUP_DIR\":"
+        bup -d "$(bup_local)" ls -r "$BACKUP_DIR" --human-readable -l "$BACKUP_NAME"
+    done
 }
diff --git a/backends/tar.sh b/backends/tar.sh
index 4d7ff36..c6012e3 100644
--- a/backends/tar.sh
+++ b/backends/tar.sh
@@ -1,14 +1,55 @@
+function tar_init() {
+    # nothing to do for tar?
+    :
+}
+
 # TODO: Make default .tar with optional bup
 function tar_create_backup() {
-    ARCHNAME="backup/$WORLD_NAME-backup_`date +%d-%m-%y-%T`.tar.gz"
+    echo "tar: backing up..."
+
+    # save world to a temporary archive
+    ARCHNAME="/tmp/${BACKUP_NAME}_`date +%d-%m-%y-%T`.tar.gz"
     tar -czf "$ARCHNAME" "./$WORLD_NAME"
 
     if [ ! $? -eq 0 ]
     then
-        echo "TAR failed. No Backup created."
-        rm $ARCHNAME #remove (probably faulty) archive
+        echo "tar: failed to save the world"
+        rm "$ARCHNAME" #remove (probably faulty) archive
         return 1
     else
-        echo $ARCHNAME created.
+        echo "tar: world saved to $ARCHNAME, pushing it to backup directories..."
     fi
+
+    RETCODE=2
+    for BACKUP_DIR in ${BACKUP_DIRS[*]}
+    do
+        echo "tar: pushing to \"$BACKUP_DIR\""
+        # scp acts as cp for local destination directories
+        scp "$ARCHNAME" "$BACKUP_DIR/"
+        if [ ! $? -eq 0 ]; then
+            echo "tar: failed pushing to \"$BACKUP_DIR\", moving on"
+        else
+            RETCODE=0
+        fi
+     done
+
+    rm "$ARCHNAME"
+
+    echo "tar: backup finished"
+
+    return $RETCODE
+}
+
+function tar_ls() {
+    for BACKUP_DIR in ${BACKUP_DIRS[*]}
+    do
+        echo "Backups in $BACKUP_DIR:"
+        if [[ $BACKUP_DIR == *:* ]]; then
+            REMOTE="$(echo "$BACKUP_DIR" | cut -d: -f1)"
+            REMOTE_DIR="$(echo "$BACKUP_DIR" | cut -d: -f2)"
+            ssh "$REMOTE" "ls -1sh $REMOTE_DIR" | grep "tar.gz"
+        else
+            ls -1sh "$BACKUP_DIR" | grep "tar.gz"
+        fi
+    done
 }
-- 
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