From: Frank Brehm <frank.brehm@pixelpark.com>
Date: Thu, 16 Nov 2017 13:24:34 +0000 (+0100)
Subject: Performing underlying backup
X-Git-Tag: 0.1.2~75
X-Git-Url: https://git.uhu-banane.net/?a=commitdiff_plain;h=cd260a888807f1d74555bb306361cdedfd2b36b1;p=pixelpark%2Fadmin-tools.git

Performing underlying backup
---

diff --git a/bin/backup_pgsql.sh b/bin/backup_pgsql.sh
index 468b1d2..f152c74 100755
--- a/bin/backup_pgsql.sh
+++ b/bin/backup_pgsql.sh
@@ -89,6 +89,8 @@ BACKUP_DIR="${BACKUP_ROOTDIR}/${YEAR}/${MONTH}/${DAY}"
 TMP_DIR=
 LOGFILE="/dev/null"
 
+BYTES_TOTAL="0"
+
 #-------------------------------------------------------------------
 detect_color() {
 
@@ -199,6 +201,11 @@ get_options() {
                 ;;
             -q|--quiet)
                 QUIET="y"
+                RED=""
+                YELLOW=""
+                GREEN=""
+                BLUE=""
+                NORMAL=""
                 shift
                 ;;
             --nocolor)
@@ -280,6 +287,7 @@ debug() {
 #------------------------------------------------------------------------------
 info() {
     if [[ "${QUIET}" == "y" ]] ; then
+        echo -e " * [$(my_date)] [${BASENAME}:INFO] : $@" >> "${LOGFILE}"
         return 0
     fi
     echo -e " ${GREEN}*${NORMAL} [$(my_date)] [${BASENAME}:${GREEN}INFO${NORMAL}] : $@" | tee -a "${LOGFILE}"
@@ -313,6 +321,15 @@ RM() {
     eval ${cmd} "$@" 2>&1 | tee -a "${LOGFILE}"
 }
 
+#------------------------------------------------------------------------------
+MV() {
+    local cmd="mv"
+    if [[ "${VERBOSE}" == "y" ]] ; then
+        cmd+=" --verbose"
+    fi
+    eval ${cmd} "$@" 2>&1 | tee -a "${LOGFILE}"
+}
+
 #------------------------------------------------------------------------------
 RMDIR() {
     local cmd="rmdir"
@@ -325,6 +342,7 @@ RMDIR() {
 #------------------------------------------------------------------------------
 empty_line() {
     if [[ "${QUIET}" == "y" ]] ; then
+        echo >> "${LOGFILE}"
         return 0
     fi
     echo 2>&1 | tee -a "${LOGFILE}"
@@ -427,6 +445,79 @@ cleanup_old_backups() {
 
 }
 
+#------------------------------------------------------------------------------
+backup_databases() {
+
+    local db=
+    for db in "${DATABASES[@]}" ; do
+        backup_database "${db}"
+    done
+
+    empty_line
+    local k_bytes=$(( ${BYTES_TOTAL} / 1024 ))
+    local m_bytes=$(( ${k_bytes} / 1024 ))
+    local msg=$( printf "Total compressed size:  %10d Bytes => %7d KiB => %4d MiB" \
+                        "${BYTES_TOTAL}" "${k_bytes}" "${m_bytes}" )
+    info "${msg}"
+}
+
+#------------------------------------------------------------------------------
+backup_database() {
+
+    local db="$1"
+
+    empty_line
+    info "Backing up database '${GREEN}${db}${NORMAL}' ..."
+
+    local output_sql="${db}-${TIMESTAMP}.sql"
+    local output_sql_compressed="${output_sql}.bz2"
+    local out_sql_tmp="${TMP_DIR}/${output_sql}"
+    local out_sql_tmp_compressed="${TMP_DIR}/${output_sql_compressed}"
+    local out_sql_tgt="${BACKUP_DIR}/${output_sql}"
+    local out_sql_tgt_compressed="${BACKUP_DIR}/${output_sql_compressed}"
+
+    local verbose_option=""
+    if [[ "${VERBOSE}" == "y" ]] ; then
+        verbose_option="--verbose"
+    fi
+
+    pg_dump ${verbose_option} --blobs --clean \
+            --create --if-exists --serializable-deferrable \
+            "${db}" 2>&1 >"${out_sql_tmp}" | tee -a "${LOGFILE}"
+
+    local blocks=$(stat -c "%b" "${out_sql_tmp}")
+    local bs=$(stat -c "%B" "${out_sql_tmp}")
+    local bytes=$(stat -c "%s" "${out_sql_tmp}")
+    local b_bytes=$(( ${blocks} * ${bs} ))
+    local k_bytes=$(( ${b_bytes} / 1024 ))
+    local m_bytes=$(( ${k_bytes} / 1024 ))
+    local msg=$( printf "Original size of %-50s    %10d Bytes => %7d KiB => %4d MiB" \
+                        "'${output_sql}':" "${bytes}" "${k_bytes}" "${m_bytes}" )
+    info "${msg}"
+
+    debug "Compressing '${out_sql_tmp}' ..."
+    bzip2 ${verbose_option} --best "${out_sql_tmp}" 2>&1 | tee -a "${LOGFILE}"
+
+    blocks=$(stat -c "%b" "${out_sql_tmp_compressed}")
+    bs=$(stat -c "%B" "${out_sql_tmp_compressed}")
+    bytes=$(stat -c "%s" "${out_sql_tmp_compressed}")
+    b_bytes=$(( ${blocks} * ${bs} ))
+    k_bytes=$(( ${b_bytes} / 1024 ))
+    m_bytes=$(( ${k_bytes} / 1024 ))
+
+    BYTES_TOTAL=$(( ${BYTES_TOTAL} + ${b_bytes} ))
+
+    local msg=$( printf "Compressed size of %-50s  %10d Bytes => %7d KiB => %4d MiB" \
+                        "'${output_sql}':" "${bytes}" "${k_bytes}" "${m_bytes}" )
+    info "${msg}"
+
+    debug "Moving '${out_sql_tmp_compressed}' => '${BACKUP_DIR}' ..."
+    MV -i "${out_sql_tmp_compressed}" "${BACKUP_DIR}"
+
+}
+
+
+
 ################################################################################
 ##
 ## Main
@@ -442,6 +533,7 @@ main() {
     info "Starting backup ..."
     get_databases
     cleanup_old_backups
+    backup_databases
 
     empty_line
     debug "Deactivating trap."