Prepare support for provider specific backup scripts

src/scripts/backupbox.sh

@@ -12,22 +12,39 @@ if [[ $# == 1 && "$1" == "--check" ]]; then
     exit 0
 fi
 
-if [ $# -lt 5 ]; then
-    echo "Usage: backupbox.sh <s3 url> <access key id> <access key> <region> <password> [session token]"
+
+# verify argument count
+if [[ "$1" === "s3" && $# -lt 6 ]]; then
+    echo "Usage: backupbox.sh s3 <s3 url> <access key id> <access key> <region> <password> [session token]"
     exit 1
 fi
 
-# env vars used by the awscli
-s3_url="$1"
-export AWS_ACCESS_KEY_ID="$2"
-export AWS_SECRET_ACCESS_KEY="$3"
-export AWS_DEFAULT_REGION="$4"
-password="$5"
-
-if [ $# -gt 5 ]; then
-    export AWS_SESSION_TOKEN="$6"
+if [[ "$1" === "filesystem" && $# -lt 4 ]]; then
+    echo "Usage: backupbox.sh filesystem <backupFolder> <fileName> <password>"
+    exit 1
 fi
 
+# extract arguments
+if [[ "$1" == "s3" ]]; then
+    # env vars used by the awscli
+    readonly s3_url="$2"
+    export AWS_ACCESS_KEY_ID="$3"
+    export AWS_SECRET_ACCESS_KEY="$4"
+    export AWS_DEFAULT_REGION="$5"
+    readonly password="$6"
+
+    if [ $# -gt 6 ]; then
+        export AWS_SESSION_TOKEN="$7"
+    fi
+fi
+
+if [[ "$1" == "filesystem" ]]; then
+    readonly backup_folder="$2"
+    readonly backup_fileName="$3"
+    readonly password="$4"
+fi
+
+# perform backup
 now=$(date "+%Y-%m-%dT%H:%M:%S")
 BOX_DATA_DIR="${HOME}/data/box"
 box_snapshot_dir="${HOME}/data/snapshots/box-${now}"
@@ -38,19 +55,29 @@ mysqldump -u root -ppassword --single-transaction --routines --triggers box > "$
 echo "Snapshoting backup as backup-${now}"
 btrfs subvolume snapshot -r "${BOX_DATA_DIR}" "${box_snapshot_dir}"
 
-for try in `seq 1 5`; do
-    echo "Uploading backup to ${s3_url} (try ${try})"
-    error_log=$(mktemp)
+if [[ "$1" == "s3" ]]; then
+    for try in `seq 1 5`; do
+        echo "Uploading backup to ${s3_url} (try ${try})"
+        error_log=$(mktemp)
 
-    # use aws instead of curl because curl will always read entire stream memory to set Content-Length
-    # aws will do multipart upload
-    if tar -czf - -C "${box_snapshot_dir}" . \
-           | openssl aes-256-cbc -e -pass "pass:${password}" \
-           | aws s3 cp - "${s3_url}" 2>"${error_log}"; then
-        break
-    fi
-    cat "${error_log}" && rm "${error_log}"
-done
+        # use aws instead of curl because curl will always read entire stream memory to set Content-Length
+        # aws will do multipart upload
+        if tar -czf - -C "${box_snapshot_dir}" . \
+               | openssl aes-256-cbc -e -pass "pass:${password}" \
+               | aws s3 cp - "${s3_url}" 2>"${error_log}"; then
+            break
+        fi
+        cat "${error_log}" && rm "${error_log}"
+    done
+fi
+
+if [[ "$1" == "filesystem" ]]; then
+    echo "Storing backup to ${backup_folder}/${backup_fileName}"
+
+    mkdir -p "${backup_folder}"
+
+    tar -czf - -C "${box_snapshot_dir}" . | openssl aes-256-cbc -e -pass "pass:${password}" > "${backup_folder}/${backup_fileName}"
+fi
 
 echo "Deleting backup snapshot"
 btrfs subvolume delete "${box_snapshot_dir}"
@@ -61,4 +88,3 @@ if [[ ${try} -eq 5 ]]; then
 else
     echo "Backup successful"
 fi
-