From aaceb570afba56ea1cfd55cef18db1aac61dc418 Mon Sep 17 00:00:00 2001
From: Lucilio Correia <lucilio@lucilio.net>
Date: Tue, 22 Oct 2024 14:54:11 -0300
Subject: [PATCH] fix: missing mariadb scripts

---
 scripts/backup-mariadb.sh        | 94 ++++++++++++++++++++++++++++++++
 scripts/install-mariadb-tools.sh |  8 +++
 2 files changed, 102 insertions(+)
 create mode 100644 scripts/backup-mariadb.sh
 create mode 100644 scripts/install-mariadb-tools.sh

diff --git a/scripts/backup-mariadb.sh b/scripts/backup-mariadb.sh
new file mode 100644
index 0000000..36f5966
--- /dev/null
+++ b/scripts/backup-mariadb.sh
@@ -0,0 +1,94 @@
+#! /bin/sh
+
+#
+# MariaDB Backup
+# Do backup of one or all databases of a given MariaDB server
+#
+
+#
+# List Databases
+#
+
+# only argument is a database url
+DB_URL="$1";
+
+# load database values as environment variables while checking URL validity
+#
+# will populate variables
+# - $DB_USERNAME
+# - $DB_PASSWORD
+# - $DB_HOST
+# - $DB_PORT
+# - $DB_NAME
+# - any query var as a prefixed variable $db_arg_${name}=${value}
+dburl-parser.sh ${DB_URL} > /tmp/ofelia.dotenv;
+source /tmp/ofelia.dotenv;
+rm /tmp/ofelia.dotenv;
+
+# set backup destination
+if test -z "${BACKUP_DATABASES_PATH}"; then
+    echo "failed initializing backup -- \$BACKUP_DATABASES_PATH is empty";
+    exit 1;
+fi
+## set subdirectory
+backup_path="/$(
+    echo "/${BACKUP_DATABASES_PATH}/${db_arg_directory:-\/}/"\
+    | sed 's/\/\{1,\}/\//g'\
+    | sed 's/^\/\(.*\)\/$/\1/'
+    )/"
+
+## directory path
+mkdir -p ${backup_path};
+## file name
+backup_prefix="${db_arg_prefix:-backup-}";
+backup_extension="${db_arg_file_extension:-SQL}";
+
+# set databases list
+if test "${DB_NAME}" = '*'; then
+    ## build a list with every database name if * is informed
+    databases=$(mysql\
+        --user=${DB_USERNAME}\
+        --password=${DB_PASSWORD}\
+        --host="${DB_HOST}"\
+        --execute="SHOW DATABASES;"\
+        --vertical\
+        --column-names=false\
+        | grep -ve ^\*\
+        | xargs
+    );
+else
+    ## use the database informed or force using --all-databases param
+    databases="${DB_NAME:-::ALL_DATABASES::}";
+fi
+
+# proccess each database
+for database_item in ${databases}; do
+    if test -z "${database_item}"; then
+        ## skip empty lines
+        continue;
+    elif test "${database_item}" = "::ALL_DATABASES::"; then
+        # backup everything in a single file if no database was set
+        database="--all-databases";
+        filename_database="all-databases";
+    else
+        # backup each database name to its own file
+        database="--databases ${database_item}";
+        filename_database="${database_item}";
+    fi
+    cat | xargs mariadb-dump << HEREDOC
+$(test -n ${DB_USERNAME} && echo "--user=${DB_USERNAME}")
+$(test -n ${DB_PASSWORD} && echo "--password=${DB_PASSWORD}")
+$(test -n ${DB_HOST} && echo "--host=${DB_HOST}")
+$(test -n ${DB_PORT} && echo "--port=${DB_PORT}")
+--result-file=$(
+    printf '%s/%s%s-%s_%s.%s'\
+    ${backup_path}\
+    ${backup_prefix}\
+    ${DB_HOST}\
+    ${filename_database}\
+    $(date +%s)\
+    ${backup_extension}
+)
+${database}
+HEREDOC
+done
\ No newline at end of file
diff --git a/scripts/install-mariadb-tools.sh b/scripts/install-mariadb-tools.sh
new file mode 100644
index 0000000..ea07ac5
--- /dev/null
+++ b/scripts/install-mariadb-tools.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+#
+# MySQL install tools
+# Install mysql and mysqldump to container
+#
+
+apk update && apk add mariadb-client;
\ No newline at end of file