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This commit is contained in:
strangeqargo 2016-05-03 15:42:02 +03:00
parent 6b7bdb1e62
commit f32dd7a65c
1 changed files with 45 additions and 34 deletions
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69
scripts/ddl2cpp
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@ -34,10 +34,12 @@ import pprint
from pyparsing import CaselessLiteral, Literal, SkipTo, restOfLine, oneOf, ZeroOrMore, Optional, Combine, Suppress, \ from pyparsing import CaselessLiteral, Literal, SkipTo, restOfLine, oneOf, ZeroOrMore, Optional, Combine, Suppress, \
WordStart, WordEnd, Word, alphas, alphanums, nums, QuotedString, nestedExpr, MatchFirst, OneOrMore, delimitedList, Or, Group WordStart, WordEnd, Word, alphas, alphanums, nums, QuotedString, nestedExpr, MatchFirst, OneOrMore, delimitedList, Or, Group
def usage():
print('Usage: ddl2cpp [-no-timestamp-warning] <path to ddl> <path to target (without extension, e.g. /tmp/MyTable)> <namespace>')
if len(sys.argv) not in (4,5): def usage():
print('Usage: ddl2cpp [-no-timestamp-warning] <path to ddl> \
<path to target (without extension, e.g. /tmp/MyTable)> <namespace>')
if len(sys.argv) not in (4, 5):
usage() usage()
sys.exit(1) sys.exit(1)
@ -63,16 +65,19 @@ def get_include_guard_name(namespace, inputfile):
val = re.sub("[^A-Za-z]+", "_", namespace + '_' + os.path.basename(inputfile)) val = re.sub("[^A-Za-z]+", "_", namespace + '_' + os.path.basename(inputfile))
return val.upper() return val.upper()
def repl_func(m): def repl_func(m):
if (m.group(1) == '_'): if m.group(1) == '_':
return m.group(2).upper() return m.group(2).upper()
else: else:
return m.group(1) + m.group(2).upper() return m.group(1) + m.group(2).upper()
def toClassName(s):
def to_class_name(s):
return re.sub("(^|\s|[_0-9])(\S)", repl_func, s) return re.sub("(^|\s|[_0-9])(\S)", repl_func, s)
def toMemberName(s):
def to_member_name(s):
return re.sub("(\s|_|[0-9])(\S)", repl_func, s) return re.sub("(\s|_|[0-9])(\S)", repl_func, s)
@ -80,6 +85,9 @@ def toMemberName(s):
def ddlWord(string): def ddlWord(string):
return WordStart(alphanums + "_") + CaselessLiteral(string) + WordEnd(alphanums + "_") return WordStart(alphanums + "_") + CaselessLiteral(string) + WordEnd(alphanums + "_")
def ddlFunctionWord(string):
return CaselessLiteral(string) + OneOrMore("(") + ZeroOrMore(" ") + OneOrMore(")")
ddlString = Or([QuotedString("'"), QuotedString("\"", escQuote='""'), QuotedString("`")]) ddlString = Or([QuotedString("'"), QuotedString("\"", escQuote='""'), QuotedString("`")])
negativeSign = Literal('-') negativeSign = Literal('-')
ddlNum = Combine(Optional(negativeSign) + Word(nums + ".")) ddlNum = Combine(Optional(negativeSign) + Word(nums + "."))
@ -87,8 +95,8 @@ ddlTerm = Word(alphas, alphanums + "_$")
ddlName = Or([ddlTerm, ddlString]) ddlName = Or([ddlTerm, ddlString])
ddlArguments = "(" + delimitedList(Or([ddlString, ddlTerm, ddlNum])) + ")" ddlArguments = "(" + delimitedList(Or([ddlString, ddlTerm, ddlNum])) + ")"
ddlNotNull = Group(ddlWord("NOT") + ddlWord("NULL")).setResultsName("notNull") ddlNotNull = Group(ddlWord("NOT") + ddlWord("NULL")).setResultsName("notNull")
ddlDefaultValue = ddlWord("DEFAULT").setResultsName("hasDefaultValue"); ddlDefaultValue = ddlWord("DEFAULT").setResultsName("hasDefaultValue")
ddlAutoValue = ddlWord("AUTO_INCREMENT").setResultsName("hasAutoValue"); ddlAutoValue = ddlWord("AUTO_INCREMENT").setResultsName("hasAutoValue")
ddlColumnComment = Group(ddlWord("COMMENT") + ddlString).setResultsName("comment") ddlColumnComment = Group(ddlWord("COMMENT") + ddlString).setResultsName("comment")
ddlConstraint = Or([ ddlConstraint = Or([
ddlWord("CONSTRAINT"), ddlWord("CONSTRAINT"),
@ -98,7 +106,9 @@ ddlConstraint = Or([
ddlWord("INDEX"), ddlWord("INDEX"),
ddlWord("UNIQUE"), ddlWord("UNIQUE"),
]) ])
ddlColumn = Group(Optional(ddlConstraint).setResultsName("isConstraint") + OneOrMore(MatchFirst([ddlNotNull, ddlAutoValue, ddlDefaultValue, ddlTerm, ddlNum, ddlColumnComment, ddlString, ddlArguments]))) ddlColumn = Group(Optional(ddlConstraint).setResultsName("isConstraint") + OneOrMore(MatchFirst(
[ddlNotNull, ddlAutoValue, ddlDefaultValue, ddlFunctionWord("NOW"), ddlTerm, ddlNum, ddlColumnComment, ddlString,
ddlArguments])))
createTable = Group(ddlWord("CREATE") + ddlWord("TABLE") + ddlName.setResultsName("tableName") + "(" + Group(delimitedList(ddlColumn)).setResultsName("columns") + ")").setResultsName("create") createTable = Group(ddlWord("CREATE") + ddlWord("TABLE") + ddlName.setResultsName("tableName") + "(" + Group(delimitedList(ddlColumn)).setResultsName("columns") + ")").setResultsName("create")
@ -125,12 +135,12 @@ types = {
'boolean': 'boolean', 'boolean': 'boolean',
'double': 'floating_point', 'double': 'floating_point',
'float': 'floating_point', 'float': 'floating_point',
'date' : 'day_point', 'date': 'day_point',
'datetime' : 'time_point', 'datetime': 'time_point',
'timestamp' : 'time_point', 'timestamp': 'time_point',
'enum' : 'text', # MYSQL 'enum': 'text', # MYSQL
'set' : 'text', # MYSQL 'set': 'text', # MYSQL
} }
# PROCESS DDL # PROCESS DDL
@ -147,11 +157,11 @@ print('#include <' + INCLUDE + '/char_sequence.h>', file=header)
print('', file=header) print('', file=header)
print('namespace ' + namespace, file=header) print('namespace ' + namespace, file=header)
print('{', file=header) print('{', file=header)
DataTypeError = False; DataTypeError = False
for create in tableCreations: for create in tableCreations:
sqlTableName = create.tableName sqlTableName = create.tableName
tableClass = toClassName(sqlTableName) tableClass = to_class_name(sqlTableName)
tableMember = toMemberName(sqlTableName) tableMember = to_member_name(sqlTableName)
tableNamespace = tableClass + '_' tableNamespace = tableClass + '_'
tableTemplateParameters = tableClass tableTemplateParameters = tableClass
print(' namespace ' + tableNamespace, file=header) print(' namespace ' + tableNamespace, file=header)
@ -160,9 +170,9 @@ for create in tableCreations:
if column.isConstraint: if column.isConstraint:
continue continue
sqlColumnName = column[0] sqlColumnName = column[0]
columnClass = toClassName(sqlColumnName) columnClass = to_class_name(sqlColumnName)
tableTemplateParameters += ',\n ' + tableNamespace + '::' + columnClass tableTemplateParameters += ',\n ' + tableNamespace + '::' + columnClass
columnMember = toMemberName(sqlColumnName) columnMember = to_member_name(sqlColumnName)
sqlColumnType = column[1].lower() sqlColumnType = column[1].lower()
if sqlColumnType == 'timestamp' and timestampWarning: if sqlColumnType == 'timestamp' and timestampWarning:
print("Warning: timestamp is mapped to sqlpp::time_point like datetime") print("Warning: timestamp is mapped to sqlpp::time_point like datetime")
@ -184,22 +194,22 @@ for create in tableCreations:
print(' };', file=header) print(' };', file=header)
print(' };', file=header) print(' };', file=header)
try: try:
traitslist = [NAMESPACE + '::' + types[sqlColumnType]]; traitslist = [NAMESPACE + '::' + types[sqlColumnType]]
except KeyError as e: except KeyError as e:
print ('Error: datatype "' + sqlColumnType + '"" is not supported.') print ('Error: datatype "' + sqlColumnType + '"" is not supported.')
DataTypeError = True DataTypeError = True
requireInsert = True requireInsert = True
if column.hasAutoValue: if column.hasAutoValue:
traitslist.append(NAMESPACE + '::tag::must_not_insert'); traitslist.append(NAMESPACE + '::tag::must_not_insert')
traitslist.append(NAMESPACE + '::tag::must_not_update'); traitslist.append(NAMESPACE + '::tag::must_not_update')
requireInsert = False requireInsert = False
if not column.notNull: if not column.notNull:
traitslist.append(NAMESPACE + '::tag::can_be_null'); traitslist.append(NAMESPACE + '::tag::can_be_null')
requireInsert = False requireInsert = False
if column.hasDefaultValue: if column.hasDefaultValue:
requireInsert = False requireInsert = False
if requireInsert: if requireInsert:
traitslist.append(NAMESPACE + '::tag::require_insert'); traitslist.append(NAMESPACE + '::tag::require_insert')
print(' using _traits = ' + NAMESPACE + '::make_traits<' + ', '.join(traitslist) + '>;', file=header) print(' using _traits = ' + NAMESPACE + '::make_traits<' + ', '.join(traitslist) + '>;', file=header)
print(' };', file=header) print(' };', file=header)
print(' }', file=header) print(' }', file=header)
@ -223,10 +233,11 @@ for create in tableCreations:
print('}', file=header) print('}', file=header)
print('#endif', file=header) print('#endif', file=header)
if (DataTypeError): if DataTypeError:
print("Error: unsupported datatypes." ) print("Error: unsupported datatypes." )
print("Possible solutions:") print("Possible solutions:")
print("A) Implement this datatype (examples: sqlpp11/data_types)" ) print("A) Implement this datatype (examples: sqlpp11/data_types)")
print("B) Extend/upgrade ddl2cpp (edit types map)" ) print("B) Extend/upgrade ddl2cpp (edit types map)")
print("C) Raise an issue on github" ) print("C) Raise an issue on github" )
sys.exit(10) #return non-zero error code, we might need it for automation sys.exit(10) # return non-zero error code, we might need it for automation