diff options
Diffstat (limited to 'utils/generate-command-code.py')
| -rwxr-xr-x | utils/generate-command-code.py | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/utils/generate-command-code.py b/utils/generate-command-code.py new file mode 100755 index 0000000..605bde4 --- /dev/null +++ b/utils/generate-command-code.py @@ -0,0 +1,489 @@ +#!/usr/bin/env python3 +import glob +import json +import os + +ARG_TYPES = { + "string": "ARG_TYPE_STRING", + "integer": "ARG_TYPE_INTEGER", + "double": "ARG_TYPE_DOUBLE", + "key": "ARG_TYPE_KEY", + "pattern": "ARG_TYPE_PATTERN", + "unix-time": "ARG_TYPE_UNIX_TIME", + "pure-token": "ARG_TYPE_PURE_TOKEN", + "oneof": "ARG_TYPE_ONEOF", + "block": "ARG_TYPE_BLOCK", +} + +GROUPS = { + "generic": "COMMAND_GROUP_GENERIC", + "string": "COMMAND_GROUP_STRING", + "list": "COMMAND_GROUP_LIST", + "set": "COMMAND_GROUP_SET", + "sorted_set": "COMMAND_GROUP_SORTED_SET", + "hash": "COMMAND_GROUP_HASH", + "pubsub": "COMMAND_GROUP_PUBSUB", + "transactions": "COMMAND_GROUP_TRANSACTIONS", + "connection": "COMMAND_GROUP_CONNECTION", + "server": "COMMAND_GROUP_SERVER", + "scripting": "COMMAND_GROUP_SCRIPTING", + "hyperloglog": "COMMAND_GROUP_HYPERLOGLOG", + "cluster": "COMMAND_GROUP_CLUSTER", + "sentinel": "COMMAND_GROUP_SENTINEL", + "geo": "COMMAND_GROUP_GEO", + "stream": "COMMAND_GROUP_STREAM", + "bitmap": "COMMAND_GROUP_BITMAP", +} + +RESP2_TYPES = { + "simple-string": "RESP2_SIMPLE_STRING", + "error": "RESP2_ERROR", + "integer": "RESP2_INTEGER", + "bulk-string": "RESP2_BULK_STRING", + "null-bulk-string": "RESP2_NULL_BULK_STRING", + "array": "RESP2_ARRAY", + "null-array": "RESP2_NULL_ARRAY", +} + +RESP3_TYPES = { + "simple-string": "RESP3_SIMPLE_STRING", + "error": "RESP3_ERROR", + "integer": "RESP3_INTEGER", + "double": "RESP3_DOUBLE", + "bulk-string": "RESP3_BULK_STRING", + "array": "RESP3_ARRAY", + "map": "RESP3_MAP", + "set": "RESP3_SET", + "bool": "RESP3_BOOL", + "null": "RESP3_NULL", +} + + +def get_optional_desc_string(desc, field, force_uppercase=False): + v = desc.get(field, None) + if v and force_uppercase: + v = v.upper() + ret = "\"%s\"" % v if v else "NULL" + return ret.replace("\n", "\\n") + + +def check_command_args_key_specs(args, command_key_specs_index_set, command_arg_key_specs_index_set): + if not args: + return True + + for arg in args: + if arg.key_spec_index is not None: + assert isinstance(arg.key_spec_index, int) + + if arg.key_spec_index not in command_key_specs_index_set: + print("command: %s arg: %s key_spec_index error" % (command.fullname(), arg.name)) + return False + + command_arg_key_specs_index_set.add(arg.key_spec_index) + + if not check_command_args_key_specs(arg.subargs, command_key_specs_index_set, command_arg_key_specs_index_set): + return False + + return True + +def check_command_key_specs(command): + if not command.key_specs: + return True + + assert isinstance(command.key_specs, list) + + for cmd_key_spec in command.key_specs: + if "flags" not in cmd_key_spec: + print("command: %s key_specs missing flags" % command.fullname()) + return False + + if "NOT_KEY" in cmd_key_spec["flags"]: + # Like SUNSUBSCRIBE / SPUBLISH / SSUBSCRIBE + return True + + command_key_specs_index_set = set(range(len(command.key_specs))) + command_arg_key_specs_index_set = set() + + # Collect key_spec used for each arg, including arg.subarg + if not check_command_args_key_specs(command.args, command_key_specs_index_set, command_arg_key_specs_index_set): + return False + + # Check if we have key_specs not used + if command_key_specs_index_set != command_arg_key_specs_index_set: + print("command: %s may have unused key_spec" % command.fullname()) + return False + + return True + + +# Globals +subcommands = {} # container_name -> dict(subcommand_name -> Subcommand) - Only subcommands +commands = {} # command_name -> Command - Only commands + + +class KeySpec(object): + def __init__(self, spec): + self.spec = spec + + def struct_code(self): + def _flags_code(): + s = "" + for flag in self.spec.get("flags", []): + s += "CMD_KEY_%s|" % flag + return s[:-1] if s else 0 + + def _begin_search_code(): + if self.spec["begin_search"].get("index"): + return "KSPEC_BS_INDEX,.bs.index={%d}" % ( + self.spec["begin_search"]["index"]["pos"] + ) + elif self.spec["begin_search"].get("keyword"): + return "KSPEC_BS_KEYWORD,.bs.keyword={\"%s\",%d}" % ( + self.spec["begin_search"]["keyword"]["keyword"], + self.spec["begin_search"]["keyword"]["startfrom"], + ) + elif "unknown" in self.spec["begin_search"]: + return "KSPEC_BS_UNKNOWN,{{0}}" + else: + print("Invalid begin_search! value=%s" % self.spec["begin_search"]) + exit(1) + + def _find_keys_code(): + if self.spec["find_keys"].get("range"): + return "KSPEC_FK_RANGE,.fk.range={%d,%d,%d}" % ( + self.spec["find_keys"]["range"]["lastkey"], + self.spec["find_keys"]["range"]["step"], + self.spec["find_keys"]["range"]["limit"] + ) + elif self.spec["find_keys"].get("keynum"): + return "KSPEC_FK_KEYNUM,.fk.keynum={%d,%d,%d}" % ( + self.spec["find_keys"]["keynum"]["keynumidx"], + self.spec["find_keys"]["keynum"]["firstkey"], + self.spec["find_keys"]["keynum"]["step"] + ) + elif "unknown" in self.spec["find_keys"]: + return "KSPEC_FK_UNKNOWN,{{0}}" + else: + print("Invalid find_keys! value=%s" % self.spec["find_keys"]) + exit(1) + + return "%s,%s,%s,%s" % ( + get_optional_desc_string(self.spec, "notes"), + _flags_code(), + _begin_search_code(), + _find_keys_code() + ) + + +class Argument(object): + def __init__(self, parent_name, desc): + self.desc = desc + self.name = self.desc["name"].lower() + self.type = self.desc["type"] + self.key_spec_index = self.desc.get("key_spec_index", None) + self.parent_name = parent_name + self.subargs = [] + self.subargs_name = None + if self.type in ["oneof", "block"]: + for subdesc in self.desc["arguments"]: + self.subargs.append(Argument(self.fullname(), subdesc)) + + def fullname(self): + return ("%s %s" % (self.parent_name, self.name)).replace("-", "_") + + def struct_name(self): + return "%s_Arg" % (self.fullname().replace(" ", "_")) + + def subarg_table_name(self): + assert self.subargs + return "%s_Subargs" % (self.fullname().replace(" ", "_")) + + def struct_code(self): + """ + Output example: + "expiration",ARG_TYPE_ONEOF,NULL,NULL,NULL,CMD_ARG_OPTIONAL,.value.subargs=SET_expiration_Subargs + """ + + def _flags_code(): + s = "" + if self.desc.get("optional", False): + s += "CMD_ARG_OPTIONAL|" + if self.desc.get("multiple", False): + s += "CMD_ARG_MULTIPLE|" + if self.desc.get("multiple_token", False): + assert self.desc.get("multiple", False) # Sanity + s += "CMD_ARG_MULTIPLE_TOKEN|" + return s[:-1] if s else "CMD_ARG_NONE" + + s = "\"%s\",%s,%d,%s,%s,%s,%s" % ( + self.name, + ARG_TYPES[self.type], + self.desc.get("key_spec_index", -1), + get_optional_desc_string(self.desc, "token", force_uppercase=True), + get_optional_desc_string(self.desc, "summary"), + get_optional_desc_string(self.desc, "since"), + _flags_code(), + ) + if "deprecated_since" in self.desc: + s += ",.deprecated_since=\"%s\"" % self.desc["deprecated_since"] + if self.subargs: + s += ",.subargs=%s" % self.subarg_table_name() + + return s + + def write_internal_structs(self, f): + if self.subargs: + for subarg in self.subargs: + subarg.write_internal_structs(f) + + f.write("/* %s argument table */\n" % self.fullname()) + f.write("struct redisCommandArg %s[] = {\n" % self.subarg_table_name()) + for subarg in self.subargs: + f.write("{%s},\n" % subarg.struct_code()) + f.write("{0}\n") + f.write("};\n\n") + + +class Command(object): + def __init__(self, name, desc): + self.name = name.upper() + self.desc = desc + self.group = self.desc["group"] + self.key_specs = self.desc.get("key_specs", []) + self.subcommands = [] + self.args = [] + for arg_desc in self.desc.get("arguments", []): + self.args.append(Argument(self.fullname(), arg_desc)) + + def fullname(self): + return self.name.replace("-", "_").replace(":", "") + + def return_types_table_name(self): + return "%s_ReturnInfo" % self.fullname().replace(" ", "_") + + def subcommand_table_name(self): + assert self.subcommands + return "%s_Subcommands" % self.name + + def history_table_name(self): + return "%s_History" % (self.fullname().replace(" ", "_")) + + def tips_table_name(self): + return "%s_tips" % (self.fullname().replace(" ", "_")) + + def arg_table_name(self): + return "%s_Args" % (self.fullname().replace(" ", "_")) + + def struct_name(self): + return "%s_Command" % (self.fullname().replace(" ", "_")) + + def history_code(self): + if not self.desc.get("history"): + return "" + s = "" + for tupl in self.desc["history"]: + s += "{\"%s\",\"%s\"},\n" % (tupl[0], tupl[1]) + s += "{0}" + return s + + def tips_code(self): + if not self.desc.get("command_tips"): + return "" + s = "" + for hint in self.desc["command_tips"]: + s += "\"%s\",\n" % hint.lower() + s += "NULL" + return s + + def struct_code(self): + """ + Output example: + "set","Set the string value of a key","O(1)","1.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_STRING,SET_History,SET_tips,setCommand,-3,"write denyoom @string",{{"write read",KSPEC_BS_INDEX,.bs.index={1},KSPEC_FK_RANGE,.fk.range={0,1,0}}},.args=SET_Args + """ + + def _flags_code(): + s = "" + for flag in self.desc.get("command_flags", []): + s += "CMD_%s|" % flag + return s[:-1] if s else 0 + + def _acl_categories_code(): + s = "" + for cat in self.desc.get("acl_categories", []): + s += "ACL_CATEGORY_%s|" % cat + return s[:-1] if s else 0 + + def _doc_flags_code(): + s = "" + for flag in self.desc.get("doc_flags", []): + s += "CMD_DOC_%s|" % flag + return s[:-1] if s else "CMD_DOC_NONE" + + def _key_specs_code(): + s = "" + for spec in self.key_specs: + s += "{%s}," % KeySpec(spec).struct_code() + return s[:-1] + + s = "\"%s\",%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%d,%s,%s," % ( + self.name.lower(), + get_optional_desc_string(self.desc, "summary"), + get_optional_desc_string(self.desc, "complexity"), + get_optional_desc_string(self.desc, "since"), + _doc_flags_code(), + get_optional_desc_string(self.desc, "replaced_by"), + get_optional_desc_string(self.desc, "deprecated_since"), + GROUPS[self.group], + self.history_table_name(), + self.tips_table_name(), + self.desc.get("function", "NULL"), + self.desc["arity"], + _flags_code(), + _acl_categories_code() + ) + + specs = _key_specs_code() + if specs: + s += "{%s}," % specs + + if self.desc.get("get_keys_function"): + s += "%s," % self.desc["get_keys_function"] + + if self.subcommands: + s += ".subcommands=%s," % self.subcommand_table_name() + + if self.args: + s += ".args=%s," % self.arg_table_name() + + return s[:-1] + + def write_internal_structs(self, f): + if self.subcommands: + subcommand_list = sorted(self.subcommands, key=lambda cmd: cmd.name) + for subcommand in subcommand_list: + subcommand.write_internal_structs(f) + + f.write("/* %s command table */\n" % self.fullname()) + f.write("struct redisCommand %s[] = {\n" % self.subcommand_table_name()) + for subcommand in subcommand_list: + f.write("{%s},\n" % subcommand.struct_code()) + f.write("{0}\n") + f.write("};\n\n") + + f.write("/********** %s ********************/\n\n" % self.fullname()) + + f.write("/* %s history */\n" % self.fullname()) + code = self.history_code() + if code: + f.write("commandHistory %s[] = {\n" % self.history_table_name()) + f.write("%s\n" % code) + f.write("};\n\n") + else: + f.write("#define %s NULL\n\n" % self.history_table_name()) + + f.write("/* %s tips */\n" % self.fullname()) + code = self.tips_code() + if code: + f.write("const char *%s[] = {\n" % self.tips_table_name()) + f.write("%s\n" % code) + f.write("};\n\n") + else: + f.write("#define %s NULL\n\n" % self.tips_table_name()) + + if self.args: + for arg in self.args: + arg.write_internal_structs(f) + + f.write("/* %s argument table */\n" % self.fullname()) + f.write("struct redisCommandArg %s[] = {\n" % self.arg_table_name()) + for arg in self.args: + f.write("{%s},\n" % arg.struct_code()) + f.write("{0}\n") + f.write("};\n\n") + + +class Subcommand(Command): + def __init__(self, name, desc): + self.container_name = desc["container"].upper() + super(Subcommand, self).__init__(name, desc) + + def fullname(self): + return "%s %s" % (self.container_name, self.name.replace("-", "_").replace(":", "")) + + +def create_command(name, desc): + if desc.get("container"): + cmd = Subcommand(name.upper(), desc) + subcommands.setdefault(desc["container"].upper(), {})[name] = cmd + else: + cmd = Command(name.upper(), desc) + commands[name.upper()] = cmd + + +# MAIN + +# Figure out where the sources are +srcdir = os.path.abspath(os.path.dirname(os.path.abspath(__file__)) + "/../src") + +# Create all command objects +print("Processing json files...") +for filename in glob.glob('%s/commands/*.json' % srcdir): + with open(filename, "r") as f: + try: + d = json.load(f) + for name, desc in d.items(): + create_command(name, desc) + except json.decoder.JSONDecodeError as err: + print("Error processing %s: %s" % (filename, err)) + exit(1) + +# Link subcommands to containers +print("Linking container command to subcommands...") +for command in commands.values(): + assert command.group + if command.name not in subcommands: + continue + for subcommand in subcommands[command.name].values(): + assert not subcommand.group or subcommand.group == command.group + subcommand.group = command.group + command.subcommands.append(subcommand) + +check_command_error_counter = 0 # An error counter is used to count errors in command checking. + +print("Checking all commands...") +for command in commands.values(): + if not check_command_key_specs(command): + check_command_error_counter += 1 + +if check_command_error_counter != 0: + print("Error: There are errors in the commands check, please check the above logs.") + exit(1) + +print("Generating commands.c...") +with open("%s/commands.c" % srcdir, "w") as f: + f.write("/* Automatically generated by %s, do not edit. */\n\n" % os.path.basename(__file__)) + f.write("#include \"server.h\"\n") + f.write( +""" +/* We have fabulous commands from + * the fantastic + * Redis Command Table! */\n +""" + ) + + command_list = sorted(commands.values(), key=lambda cmd: (cmd.group, cmd.name)) + for command in command_list: + command.write_internal_structs(f) + + f.write("/* Main command table */\n") + f.write("struct redisCommand redisCommandTable[] = {\n") + curr_group = None + for command in command_list: + if curr_group != command.group: + curr_group = command.group + f.write("/* %s */\n" % curr_group) + f.write("{%s},\n" % command.struct_code()) + f.write("{0}\n") + f.write("};\n") + +print("All done, exiting.") |