added nodata option to mysql handler, thanks to Daniel Bonniot (Closes: 408829)

[matthijs/upstream/backupninja.git] / handlers / mysql.in

diff --git a/handlers/mysql.in b/handlers/mysql.in
index de4e4c3d2f920d8117c2e960e9c1f5e1619ccf22..64b6f492188b31429ceb9249abd9c748fd68d99c 100644 (file)
--- a/handlers/mysql.in
+++ b/handlers/mysql.in
@@ -6,6 +6,7 @@
 getconf backupdir /var/backups/mysql
 getconf databases all
 getconf ignores
+getconf nodata
 getconf dbhost localhost
 getconf hotcopy no
 getconf sqldump no
@@ -47,7 +48,7 @@ fi
 ## This only works for mysqldump at the moment
 
 ignore=''
-for i in $ignores; do
+for i in $ignores $nodata; do
        ignore="$ignore --ignore-table=$i"
 done
        
@@ -243,10 +244,27 @@ then
                    fatal "Authentication problem, maybe user/password is wrong or mysqld is not running?"
                fi
        fi
-fi
+    fi
 
        for db in $databases
        do
+           DUMP_BASE="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names"
+
+           # Dumping structure and data
+           DUMP="$DUMP_BASE $ignore $db"
+
+           # If requested, dump only the table structure for this database
+           if echo "$nodata" | grep -E '(^|[[:space:]])'"$db\." >/dev/null
+           then
+              # Get the structure of the tables, without data
+              DUMP_STRUCT="$DUMP_BASE --no-data $db"
+              for qualified_table in $nodata
+              do
+                 table=$( expr match "$qualified_table" "$db\.\([^\w]*\)" )
+                 DUMP_STRUCT="$DUMP_STRUCT $table"
+              done
+              DUMP="( $DUMP; $DUMP_STRUCT )"
+           fi
                if [ $usevserver = yes ]
                then
                    # Test to make sure mysqld is running, if it is not sqldump will not work
@@ -255,9 +273,9 @@ fi
                       fatal "Either you have an authentication problem, or mysqld doesn't appear to be running!"
                    fi
                    if [ "$compress" == "yes" ]; then
-                      execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $vroot$dumpdir/${db}.sql.gz"
+                      execstr="$VSERVER $vsname exec $DUMP | $GZIP > $vroot$dumpdir/${db}.sql.gz"
                    else
-                      execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db -r $vroot$dumpdir/${db}.sql"
+                      execstr="$VSERVER $vsname exec $DUMP -r $vroot$dumpdir/${db}.sql"
                    fi
                else
                    # Test to make sure mysqld is running, if it is not sqldump will not work
@@ -266,9 +284,9 @@ fi
                       fatal "Either you have an authentication problem, or mysqld doesn't appear to be running!"
                    fi
                    if [ "$compress" == "yes" ]; then
-                      execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $dumpdir/${db}.sql.gz"
+                      execstr="$DUMP | $GZIP > $dumpdir/${db}.sql.gz"
                    else
-                      execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db -r $dumpdir/${db}.sql"
+                      execstr="$DUMP -r $dumpdir/${db}.sql"
                    fi
                fi
                debug "su $user -c \"$execstr\""