feat(cmake): add cmake code format tools

GitOrigin-RevId: 4f06d8a08a221567c9aca37aa9ce1745478d67a1

tools/cmake_format_config.json

+{
+  "_help_parse": "Options affecting listfile parsing",
+  "parse": {
+    "_help_additional_commands": [
+      "Specify structure for custom cmake functions"
+    ],
+    "additional_commands": {
+      "foo": {
+        "flags": [
+          "BAR",
+          "BAZ"
+        ],
+        "kwargs": {
+          "HEADERS": "*",
+          "SOURCES": "*",
+          "DEPENDS": "*"
+        }
+      }
+    },
+    "_help_override_spec": [
+      "Override configurations per-command where available"
+    ],
+    "override_spec": {},
+    "_help_vartags": [
+      "Specify variable tags."
+    ],
+    "vartags": [],
+    "_help_proptags": [
+      "Specify property tags."
+    ],
+    "proptags": []
+  },
+  "_help_format": "Options affecting formatting.",
+  "format": {
+    "_help_disable": [
+      "Disable formatting entirely, making cmake-format a no-op"
+    ],
+    "disable": false,
+    "_help_line_width": [
+      "How wide to allow formatted cmake files"
+    ],
+    "line_width": 88,
+    "_help_tab_size": [
+      "How many spaces to tab for indent"
+    ],
+    "tab_size": 2,
+    "_help_use_tabchars": [
+      "If true, lines are indented using tab characters (utf-8",
+      "0x09) instead of <tab_size> space characters (utf-8 0x20).",
+      "In cases where the layout would require a fractional tab",
+      "character, the behavior of the  fractional indentation is",
+      "governed by <fractional_tab_policy>"
+    ],
+    "use_tabchars": false,
+    "_help_fractional_tab_policy": [
+      "If <use_tabchars> is True, then the value of this variable",
+      "indicates how fractional indentions are handled during",
+      "whitespace replacement. If set to 'use-space', fractional",
+      "indentation is left as spaces (utf-8 0x20). If set to",
+      "`round-up` fractional indentation is replaced with a single",
+      "tab character (utf-8 0x09) effectively shifting the column",
+      "to the next tabstop"
+    ],
+    "fractional_tab_policy": "use-space",
+    "_help_max_subgroups_hwrap": [
+      "If an argument group contains more than this many sub-groups",
+      "(parg or kwarg groups) then force it to a vertical layout."
+    ],
+    "max_subgroups_hwrap": 2,
+    "_help_max_pargs_hwrap": [
+      "If a positional argument group contains more than this many",
+      "arguments, then force it to a vertical layout."
+    ],
+    "max_pargs_hwrap": 6,
+    "_help_max_rows_cmdline": [
+      "If a cmdline positional group consumes more than this many",
+      "lines without nesting, then invalidate the layout (and nest)"
+    ],
+    "max_rows_cmdline": 2,
+    "_help_separate_ctrl_name_with_space": [
+      "If true, separate flow control names from their parentheses",
+      "with a space"
+    ],
+    "separate_ctrl_name_with_space": false,
+    "_help_separate_fn_name_with_space": [
+      "If true, separate function names from parentheses with a",
+      "space"
+    ],
+    "separate_fn_name_with_space": false,
+    "_help_dangle_parens": [
+      "If a statement is wrapped to more than one line, than dangle",
+      "the closing parenthesis on its own line."
+    ],
+    "dangle_parens": false,
+    "_help_dangle_align": [
+      "If the trailing parenthesis must be 'dangled' on its on",
+      "line, then align it to this reference: `prefix`: the start",
+      "of the statement,  `prefix-indent`: the start of the",
+      "statement, plus one indentation  level, `child`: align to",
+      "the column of the arguments"
+    ],
+    "dangle_align": "prefix",
+    "_help_min_prefix_chars": [
+      "If the statement spelling length (including space and",
+      "parenthesis) is smaller than this amount, then force reject",
+      "nested layouts."
+    ],
+    "min_prefix_chars": 4,
+    "_help_max_prefix_chars": [
+      "If the statement spelling length (including space and",
+      "parenthesis) is larger than the tab width by more than this",
+      "amount, then force reject un-nested layouts."
+    ],
+    "max_prefix_chars": 10,
+    "_help_max_lines_hwrap": [
+      "If a candidate layout is wrapped horizontally but it exceeds",
+      "this many lines, then reject the layout."
+    ],
+    "max_lines_hwrap": 2,
+    "_help_line_ending": [
+      "What style line endings to use in the output."
+    ],
+    "line_ending": "unix",
+    "_help_command_case": [
+      "Format command names consistently as 'lower' or 'upper' case"
+    ],
+    "command_case": "canonical",
+    "_help_keyword_case": [
+      "Format keywords consistently as 'lower' or 'upper' case"
+    ],
+    "keyword_case": "unchanged",
+    "_help_always_wrap": [
+      "A list of command names which should always be wrapped"
+    ],
+    "always_wrap": [],
+    "_help_enable_sort": [
+      "If true, the argument lists which are known to be sortable",
+      "will be sorted lexicographicall"
+    ],
+    "enable_sort": true,
+    "_help_autosort": [
+      "If true, the parsers may infer whether or not an argument",
+      "list is sortable (without annotation)."
+    ],
+    "autosort": false,
+    "_help_require_valid_layout": [
+      "By default, if cmake-format cannot successfully fit",
+      "everything into the desired linewidth it will apply the",
+      "last, most agressive attempt that it made. If this flag is",
+      "True, however, cmake-format will print error, exit with non-",
+      "zero status code, and write-out nothing"
+    ],
+    "require_valid_layout": false,
+    "_help_layout_passes": [
+      "A dictionary mapping layout nodes to a list of wrap",
+      "decisions. See the documentation for more information."
+    ],
+    "layout_passes": {}
+  },
+  "_help_markup": "Options affecting comment reflow and formatting.",
+  "markup": {
+    "_help_bullet_char": [
+      "What character to use for bulleted lists"
+    ],
+    "bullet_char": "*",
+    "_help_enum_char": [
+      "What character to use as punctuation after numerals in an",
+      "enumerated list"
+    ],
+    "enum_char": ".",
+    "_help_first_comment_is_literal": [
+      "If comment markup is enabled, don't reflow the first comment",
+      "block in each listfile. Use this to preserve formatting of",
+      "your copyright/license statements."
+    ],
+    "first_comment_is_literal": false,
+    "_help_literal_comment_pattern": [
+      "If comment markup is enabled, don't reflow any comment block",
+      "which matches this (regex) pattern. Default is `None`",
+      "(disabled)."
+    ],
+    "literal_comment_pattern": ".*INTERNAL.*",
+    "_help_fence_pattern": [
+      "Regular expression to match preformat fences in comments",
+      "default= ``r'^\\s*([`~]{3}[`~]*)(.*)$'``"
+    ],
+    "fence_pattern": "^\\s*([`~]{3}[`~]*)(.*)$",
+    "_help_ruler_pattern": [
+      "Regular expression to match rulers in comments default=",
+      "``r'^\\s*[^\\w\\s]{3}.*[^\\w\\s]{3}$'``"
+    ],
+    "ruler_pattern": "^\\s*[^\\w\\s]{3}.*[^\\w\\s]{3}$",
+    "_help_explicit_trailing_pattern": [
+      "If a comment line matches starts with this pattern then it",
+      "is explicitly a trailing comment for the preceeding",
+      "argument. Default is '#<'"
+    ],
+    "explicit_trailing_pattern": "#<",
+    "_help_hashruler_min_length": [
+      "If a comment line starts with at least this many consecutive",
+      "hash characters, then don't lstrip() them off. This allows",
+      "for lazy hash rulers where the first hash char is not",
+      "separated by space"
+    ],
+    "hashruler_min_length": 10,
+    "_help_canonicalize_hashrulers": [
+      "If true, then insert a space between the first hash char and",
+      "remaining hash chars in a hash ruler, and normalize its",
+      "length to fill the column"
+    ],
+    "canonicalize_hashrulers": true,
+    "_help_enable_markup": [
+      "enable comment markup parsing and reflow"
+    ],
+    "enable_markup": true
+  },
+  "_help_lint": "Options affecting the linter",
+  "lint": {
+    "_help_disabled_codes": [
+      "a list of lint codes to disable"
+    ],
+    "disabled_codes": [],
+    "_help_function_pattern": [
+      "regular expression pattern describing valid function names"
+    ],
+    "function_pattern": "[0-9a-z_]+",
+    "_help_macro_pattern": [
+      "regular expression pattern describing valid macro names"
+    ],
+    "macro_pattern": "[0-9A-Z_]+",
+    "_help_global_var_pattern": [
+      "regular expression pattern describing valid names for",
+      "variables with global (cache) scope"
+    ],
+    "global_var_pattern": "[A-Z][0-9A-Z_]+",
+    "_help_internal_var_pattern": [
+      "regular expression pattern describing valid names for",
+      "variables with global scope (but internal semantic)"
+    ],
+    "internal_var_pattern": "_[A-Z][0-9A-Z_]+",
+    "_help_local_var_pattern": [
+      "regular expression pattern describing valid names for",
+      "variables with local scope"
+    ],
+    "local_var_pattern": "[a-z][a-z0-9_]+",
+    "_help_private_var_pattern": [
+      "regular expression pattern describing valid names for",
+      "privatedirectory variables"
+    ],
+    "private_var_pattern": "_[0-9a-z_]+",
+    "_help_public_var_pattern": [
+      "regular expression pattern describing valid names for public",
+      "directory variables"
+    ],
+    "public_var_pattern": "[A-Z][0-9A-Z_]+",
+    "_help_argument_var_pattern": [
+      "regular expression pattern describing valid names for",
+      "function/macro arguments and loop variables."
+    ],
+    "argument_var_pattern": "[a-z][a-z0-9_]+",
+    "_help_keyword_pattern": [
+      "regular expression pattern describing valid names for",
+      "keywords used in functions or macros"
+    ],
+    "keyword_pattern": "[A-Z][0-9A-Z_]+",
+    "_help_max_conditionals_custom_parser": [
+      "In the heuristic for C0201, how many conditionals to match",
+      "within a loop in before considering the loop a parser."
+    ],
+    "max_conditionals_custom_parser": 2,
+    "_help_min_statement_spacing": [
+      "Require at least this many newlines between statements"
+    ],
+    "min_statement_spacing": 1,
+    "_help_max_statement_spacing": [
+      "Require no more than this many newlines between statements"
+    ],
+    "max_statement_spacing": 2,
+    "max_returns": 6,
+    "max_branches": 12,
+    "max_arguments": 5,
+    "max_localvars": 15,
+    "max_statements": 50
+  },
+  "_help_encode": "Options affecting file encoding",
+  "encode": {
+    "_help_emit_byteorder_mark": [
+      "If true, emit the unicode byte-order mark (BOM) at the start",
+      "of the file"
+    ],
+    "emit_byteorder_mark": false,
+    "_help_input_encoding": [
+      "Specify the encoding of the input file. Defaults to utf-8"
+    ],
+    "input_encoding": "utf-8",
+    "_help_output_encoding": [
+      "Specify the encoding of the output file. Defaults to utf-8.",
+      "Note that cmake only claims to support utf-8 so be careful",
+      "when using anything else"
+    ],
+    "output_encoding": "utf-8"
+  },
+  "_help_misc": "Miscellaneous configurations options.",
+  "misc": {
+    "_help_per_command": [
+      "A dictionary containing any per-command configuration",
+      "overrides. Currently only `command_case` is supported."
+    ],
+    "per_command": {}
+  }
+}

tools/cmakeformat.py

+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
+#
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import argparse
+import os
+import subprocess
+from pathlib import Path
+
+CMAKE_FILS_DIRS = [
+    "test",
+    "dnn",
+    "tools",
+    "sdk",
+    "src",
+    "imperative",
+    "lite",
+    "cmake",
+    "toolchains",
+]
+
+
+def main():
+    os.chdir(str(Path(__file__).resolve().parent.parent))
+    parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
+    parser.add_argument("--check", action="store_true", help="check model")
+    parser.add_argument(
+        "--cmake_files",
+        nargs="+",
+        default=None,
+        dest="cmake_files",
+        help="cmake files to format, please split with space",
+    )
+    args = parser.parse_args()
+
+    handle_files = []
+    if args.cmake_files:
+        handle_files = args.cmake_files
+        for cmake_file in handle_files:
+            assert os.path.isfile(
+                cmake_file
+            ), "error input --cmake_files, can not find file: {}".format(cmake_file)
+    else:
+        handle_files.append("CMakeLists.txt")
+        for cmake_file_dir in CMAKE_FILS_DIRS:
+            assert os.path.isdir(
+                cmake_file_dir
+            ), "{} is not a directory, may config error for CMAKE_FILS_DIRS".format(
+                cmake_file_dir
+            )
+            for cmake_file in [
+                os.path.join(root, file)
+                for root, dirs, files in os.walk(cmake_file_dir)
+                for file in files
+                if file.endswith("CMakeLists.txt") or file.endswith(".cmake")
+            ]:
+                print("find cmake_file: {}".format(cmake_file))
+                assert os.path.isfile(cmake_file), "code issue happened!!"
+                handle_files.append(cmake_file)
+
+    for cmake_file in handle_files:
+        handle_type = ["format", "--in-place"]
+        if args.check:
+            handle_type = ["check", "--check"]
+        cmd = "cmake-format -c tools/cmake_format_config.json {} {}".format(
+            handle_type[1], cmake_file
+        )
+        print("try {}: {} with command: {}".format(handle_type[0], cmake_file, cmd))
+        try:
+            subprocess.check_call(cmd, shell=True)
+        except Exception as exc:
+            print("run cmd {} failed".format(cmd))
+            if args.check:
+                print(
+                    'please run: "python3 tools/cmakeformat.py" to format cmake files'
+                )
+            else:
+                print("code issue happened!!, please FIXME!!")
+            raise exc
+
+
+if __name__ == "__main__":
+    subprocess.check_call("python3 -m pip install cmakelang==0.6.13 --user", shell=True)
+    main()