scripts/sql-schema/mcore-sql-schema.sh

#!/bin/bash

# include everything from include
for inc in $(find ./include -type f -name \*.sh)
do
	source "${inc}"
done

die()
{
	echo "ERROR: $@"
	exit 1
}

mysql_command()
{
	local sql_user
	local sql_pass
	local sql_host
	local sql_db
	local sql_command

	sql_user=$1
	sql_pass=$2
	sql_host=$3
	sql_db=$4
	sql_command=$5

	#fallback (sql_opts not, they are optional )
	if [ -z "${sql_user}" \
		-o -z "${sql_pass}" \
		-o -z "${sql_host}" \
		-o -z "${sql_db}" \
		-o -z "${sql_command}" ]
	then
		echo
		echo "Usage:"
		echo -e "      mysql_command user pass host db \"sql-command\""
		echo
		return 1
	fi

	mysql \
		--user="${sql_user}" \
		--password="${sql_pass}" \
		--host="${sql_host}" \
		--database="${sql_db}" \
		--batch \
		--skip-column-names \
		--execute="${sql_command}" \
		|| return 1

	return 0
}

mysqldo()
{
	mysql_command \
		"${MCORE_SQL_USER}" \
		"${MCORE_SQL_PASS}" \
		"${MCORE_SQL_HOST}" \
		"${MCORE_SQL_DB}" \
		"$@" \
		&& return 0 || return 1
}

# creates a mysql table with help of a defined array TABLE_DEFINITION:
# array values are a struct like this:
# first array element is the table name, everything else are column descriptions
# TABLE_DEFINITION=(
#		"table_name"
#			"column1_name column1_argvs"
#			"column2_name column2_argvs"
#			"columnN_name columnN_argvs"
#	)
sql_create_table()
{
	local table
	local count
	local i
	local line
	local opts
	local column
	local autoincrement
	local primary
	local create

	table="${TABLE_DEFINITION[0]}"
	count="${#TABLE_DEFINITION[*]}"

	for ((i=1; i<count; i++))
	do
		line="${TABLE_DEFINITION[${i}]}"
		column="${line%% *}"
		opts="${line/${column} /}"

		case ${opts} in
			*"PRIMARY KEY"*) opts="${opts//PRIMARY KEY}"; primary="${column}" ;;
			*"primary key"*) opts="${opts//primary key}"; primary="${column}" ;;
		esac

		case ${opts} in
			*AUTO_INCREMENT*) opts="${opts//AUTO_INCREMENT}"; autoincrement="${column} ${opts}" ;;
			*auto_increment*) opts="${opts//auto_increment}"; autoincrement="${column} ${opts}" ;;
		esac

		if [[ -z ${create} ]]
		then
			create="${column} ${opts}"
		else
			create+=", ${column} ${opts}"
		fi
	done
	mysqldo "CREATE TABLE ${MCORE_SQL_DB}.${table} ( ${create} );" || die "creating table '${table}'"

	if [[ -n ${primary} ]]
	then
		mysqldo "ALTER TABLE ${MCORE_SQL_DB}.${table} ADD PRIMARY KEY (${primary});" || die "adding primary key to table '${table}'"
	fi
	if [[ -n ${autoincrement} ]]
	then
		mysqldo "ALTER TABLE ${MCORE_SQL_DB}.${table} MODIFY ${autoincrement} AUTO_INCREMENT;" || die "adding auto_increment to table '${table}'"
	fi
}

# VALUE_DEFINITION=(
#		"table_name, value_column_name, bool_column_name, id_column_name"
#			"value1, bool1"
#			"value2, bool2"
#			"valueN, boolN"
#	)
sql_set_value()
{
	local line
	local meta
	local table
	local column_value
	local column_bool
	local column_id
	local value
	local bool
	local count
	local i
	local id

	count="${#VALUE_DEFINITION[*]}"
	line="${VALUE_DEFINITION[0]}"
	for i in ${line//,/ }
	do
		meta+=( "${i}" )
	done

	table="${meta[0]}"
	column_value="${meta[1]}"
	column_bool="${meta[2]}"
	column_id="${meta[3]}"

	for ((i=1; i<count; i++))
	do
		line="${VALUE_DEFINITION[${i}]}"
		value="${line%%,*}"
		bool="${line##*,}"
		# remove any leading whitespaces
		bool="${bool// }"

		# now check if the value already exist in the database
		id=$(mysqldo "SELECT ${column_id} FROM ${MCORE_SQL_DB}.${table} WHERE ${column_value}='${value}';")
		if [[ -n ${id} ]]
		then
			# update value in database
			mysqldo "UPDATE ${MCORE_SQL_DB}.${table} SET ${column_value}='${value}', ${column_bool}='${bool}' WHERE ${column_id}='${id}';" || die "update value in table ${table}"
		else
			# insert into the database
			mysqldo "INSERT INTO ${MCORE_SQL_DB}.${table} (${column_value}, ${column_bool}) VALUES ( '${value}', '${bool}' );" || die "insert value into table ${table}"
		fi
	done
}

create_database()
{
	create_database_schema
}

update_database()
{
	local current_sql_db_version
	local i

	current_sql_db_version=$(mysqldo "SELECT MAX(version) from meta;")

	if [[ ${current_sql_db_version} = ${MCORE_SQL_DB_VERSION} ]]
	then
		echo "Database is already up to date"
		return 0
	fi

	# run every update_to_database_version_X script which exist up to version MCORE_SQL_DB_VERSION
	for i in $(seq $((${current_sql_db_version}+1)) ${MCORE_SQL_DB_VERSION})
	do
		if [[ -n $(typeset -f update_to_database_version_${i}) ]]
		then
			echo "Running update_to_database_schema_version_${i}()"
			update_to_database_schema_version_${i}
		fi
	done
}

fill_database()
{
	create_database_values
}

case $1 in
	create)
		create_database
		fill_database
		;;

	update)
		update_database
		fill_database
		;;
esac
1	#!/bin/bash
2
3	# include everything from include
4	for inc in $(find ./include -type f -name \*.sh)
5	do
6	source "${inc}"
7	done
8
9	die()
10	{
11	echo "ERROR: $@"
12	exit 1
13	}
14
15	mysql_command()
16	{
17	local sql_user
18	local sql_pass
19	local sql_host
20	local sql_db
21	local sql_command
22
23	sql_user=$1
24	sql_pass=$2
25	sql_host=$3
26	sql_db=$4
27	sql_command=$5
28
29	#fallback (sql_opts not, they are optional )
30	if [ -z "${sql_user}" \
31	-o -z "${sql_pass}" \
32	-o -z "${sql_host}" \
33	-o -z "${sql_db}" \
34	-o -z "${sql_command}" ]
35	then
36	echo
37	echo "Usage:"
38	echo -e " mysql_command user pass host db \"sql-command\""
39	echo
40	return 1
41	fi
42
43	mysql \
44	--user="${sql_user}" \
45	--password="${sql_pass}" \
46	--host="${sql_host}" \
47	--database="${sql_db}" \
48	--batch \
49	--skip-column-names \
50	--execute="${sql_command}" \
51	\|\| return 1
52
53	return 0
54	}
55
56	mysqldo()
57	{
58	mysql_command \
59	"${MCORE_SQL_USER}" \
60	"${MCORE_SQL_PASS}" \
61	"${MCORE_SQL_HOST}" \
62	"${MCORE_SQL_DB}" \
63	"$@" \
64	&& return 0 \|\| return 1
65	}
66
67	# creates a mysql table with help of a defined array TABLE_DEFINITION:
68	# array values are a struct like this:
69	# first array element is the table name, everything else are column descriptions
70	# TABLE_DEFINITION=(
71	# "table_name"
72	# "column1_name column1_argvs"
73	# "column2_name column2_argvs"
74	# "columnN_name columnN_argvs"
75	# )
76	sql_create_table()
77	{
78	local table
79	local count
80	local i
81	local line
82	local opts
83	local column
84	local autoincrement
85	local primary
86	local create
87
88	table="${TABLE_DEFINITION[0]}"
89	count="${#TABLE_DEFINITION[*]}"
90
91	for ((i=1; i<count; i++))
92	do
93	line="${TABLE_DEFINITION[${i}]}"
94	column="${line%% *}"
95	opts="${line/${column} /}"
96
97	case ${opts} in
98	"PRIMARY KEY") opts="${opts//PRIMARY KEY}"; primary="${column}" ;;
99	"primary key") opts="${opts//primary key}"; primary="${column}" ;;
100	esac
101
102	case ${opts} in
103	AUTO_INCREMENT) opts="${opts//AUTO_INCREMENT}"; autoincrement="${column} ${opts}" ;;
104	auto_increment) opts="${opts//auto_increment}"; autoincrement="${column} ${opts}" ;;
105	esac
106
107	if [[ -z ${create} ]]
108	then
109	create="${column} ${opts}"
110	else
111	create+=", ${column} ${opts}"
112	fi
113	done
114	mysqldo "CREATE TABLE ${MCORE_SQL_DB}.${table} ( ${create} );" \|\| die "creating table '${table}'"
115
116	if [[ -n ${primary} ]]
117	then
118	mysqldo "ALTER TABLE ${MCORE_SQL_DB}.${table} ADD PRIMARY KEY (${primary});" \|\| die "adding primary key to table '${table}'"
119	fi
120	if [[ -n ${autoincrement} ]]
121	then
122	mysqldo "ALTER TABLE ${MCORE_SQL_DB}.${table} MODIFY ${autoincrement} AUTO_INCREMENT;" \|\| die "adding auto_increment to table '${table}'"
123	fi
124	}
125
126	# VALUE_DEFINITION=(
127	# "table_name, value_column_name, bool_column_name, id_column_name"
128	# "value1, bool1"
129	# "value2, bool2"
130	# "valueN, boolN"
131	# )
132	sql_set_value()
133	{
134	local line
135	local meta
136	local table
137	local column_value
138	local column_bool
139	local column_id
140	local value
141	local bool
142	local count
143	local i
144	local id
145
146	count="${#VALUE_DEFINITION[*]}"
147	line="${VALUE_DEFINITION[0]}"
148	for i in ${line//,/ }
149	do
150	meta+=( "${i}" )
151	done
152
153	table="${meta[0]}"
154	column_value="${meta[1]}"
155	column_bool="${meta[2]}"
156	column_id="${meta[3]}"
157
158	for ((i=1; i<count; i++))
159	do
160	line="${VALUE_DEFINITION[${i}]}"
161	value="${line%%,*}"
162	bool="${line##*,}"
163	# remove any leading whitespaces
164	bool="${bool// }"
165
166	# now check if the value already exist in the database
167	id=$(mysqldo "SELECT ${column_id} FROM ${MCORE_SQL_DB}.${table} WHERE ${column_value}='${value}';")
168	if [[ -n ${id} ]]
169	then
170	# update value in database
171	mysqldo "UPDATE ${MCORE_SQL_DB}.${table} SET ${column_value}='${value}', ${column_bool}='${bool}' WHERE ${column_id}='${id}';" \|\| die "update value in table ${table}"
172	else
173	# insert into the database
174	mysqldo "INSERT INTO ${MCORE_SQL_DB}.${table} (${column_value}, ${column_bool}) VALUES ( '${value}', '${bool}' );" \|\| die "insert value into table ${table}"
175	fi
176	done
177	}
178
179	create_database()
180	{
181	create_database_schema
182	}
183
184	update_database()
185	{
186	local current_sql_db_version
187	local i
188
189	current_sql_db_version=$(mysqldo "SELECT MAX(version) from meta;")
190
191	if [[ ${current_sql_db_version} = ${MCORE_SQL_DB_VERSION} ]]
192	then
193	echo "Database is already up to date"
194	return 0
195	fi
196
197	# run every update_to_database_version_X script which exist up to version MCORE_SQL_DB_VERSION
198	for i in $(seq $((${current_sql_db_version}+1)) ${MCORE_SQL_DB_VERSION})
199	do
200	if [[ -n $(typeset -f update_to_database_version_${i}) ]]
201	then
202	echo "Running update_to_database_schema_version_${i}()"
203	update_to_database_schema_version_${i}
204	fi
205	done
206	}
207
208	fill_database()
209	{
210	create_database_values
211	}
212
213	case $1 in
214	create)
215	create_database
216	fill_database
217	;;
218
219	update)
220	update_database
221	fill_database
222	;;
223	esac