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#!/usr/bin/env python3
# Copyright 2025 Huawei Cloud Computing Technology Co., Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
import json
import difflib
from functools import cmp_to_key
from typing import Any, Dict, List, Tuple, Union, cast
from argparse import ArgumentParser
try:
from pygments import console # type: ignore
has_pygments = True
except ImportError:
has_pygments = False
JSON = Union[str, int, float, bool, None, Dict[str, 'JSON'], List['JSON']]
def is_simple(entry: JSON) -> bool:
if isinstance(entry, list):
return len(entry) == 0
if isinstance(entry, dict):
return len(entry) == 0
return True
def is_short(entry: JSON, indent: int) -> bool:
return len(json.dumps(entry)) + indent < 80
def hdumps(entry: JSON, *, _current_indent: int = 0) -> str:
if is_short(entry, _current_indent):
return json.dumps(entry)
if isinstance(entry, list) and entry:
result = "[ " + hdumps(entry[0], _current_indent=_current_indent + 2)
for x in entry[1:]:
result += "\n" + " " * _current_indent + ", "
result += hdumps(x, _current_indent=_current_indent + 2)
result += "\n" + " " * _current_indent + "]"
return result
if isinstance(entry, dict) and entry:
result = "{ "
is_first = True
for k in entry.keys():
if not is_first:
result += "\n" + " " * _current_indent + ", "
result += json.dumps(k) + ":"
if is_simple(entry[k]):
result += " " + json.dumps(entry[k])
elif is_short(entry[k], _current_indent + len(json.dumps(k)) + 4):
result += " " + json.dumps(entry[k])
else:
result += "\n" + " " * _current_indent + " "
result += hdumps(entry[k], _current_indent=_current_indent + 2)
is_first = False
result += "\n" + " " * _current_indent + "}"
return result
return json.dumps(entry)
def compare_deps(lhs: JSON, rhs: JSON) -> int:
# Regular strings appear before everything else
if isinstance(lhs, str) != isinstance(rhs, str):
if isinstance(lhs, str):
return -1
else:
return 1
# Regular strings are ordered in the alphabetic order
if isinstance(lhs, str) and isinstance(rhs, str):
if lhs < rhs:
return -1
elif lhs > rhs:
return 1
if isinstance(lhs, list) and isinstance(rhs, list):
# Third-party dependencies appear before other dependencies
if cast(Any, lhs[0]) != cast(Any, rhs[0]):
if lhs[0] == "@":
return -1
if rhs[0] == "@":
return 1
# Dependencies are ordered in the alphabetic order
if lhs < rhs:
return -1
elif lhs > rhs:
return 1
return 0
def sort_list_of_dependencies(deps: JSON) -> JSON:
if not isinstance(deps, list):
return deps
deps = sorted(deps, key=cmp_to_key(compare_deps))
# Remove duplicated dependencies
i = 0
while i < len(deps) - 1:
if deps[i] == deps[i + 1]:
deps.pop(i + 1)
else:
i += 1
return deps
# Get indices of intersecting entries in two sorted lists( [[lhs_index, rhs_index],...] )
# Resulting pairs are ordered in the non-descending order for both lhs and rhs.
def get_intersecting_indices(lhs: JSON, rhs: JSON) -> list[Tuple[int, int]]:
if not isinstance(lhs, list) or not isinstance(rhs, list):
return list()
intersection_indices: list[Tuple[int, int]] = list()
i = 0
j = 0
while i < len(lhs) and j < len(rhs):
compare_result = compare_deps(lhs[i], rhs[j])
if compare_result < 0:
i += 1
elif compare_result > 0:
j += 1
else:
intersection_indices.append((i, j))
j += 1
return intersection_indices
def sort_dependencies(content: dict[str, JSON]) -> JSON:
if "deps" in content:
content["deps"] = sort_list_of_dependencies(content["deps"])
if "private-deps" in content:
content["private-deps"] = sort_list_of_dependencies(
content["private-deps"])
# Remove intersecting dependencies between public and private dependencies,
# if both are present in the target:
# Typically an intersection occurs when a developer makes a private
# dependency public, but forgets to remove the private-deps entry.
# That's why private-deps entries are deleted here.
if "deps" in content and "private-deps" in content:
intersection = get_intersecting_indices(content["deps"],
content["private-deps"])
for _, j in reversed(intersection):
cast(list[JSON], content["private-deps"]).pop(j)
return content
def sort_targets_dependencies(data: str) -> str:
targets: dict[str, JSON] = json.loads(data)
for target_name, content in targets.items():
targets[target_name] = sort_dependencies(cast(Dict[str, JSON], content))
return json.dumps(targets)
def color_diff(before: str, after: str):
next_lines = 0
lines: List[str] = []
for line in difflib.ndiff(before.splitlines(keepends=True),
after.splitlines(keepends=True)):
if line.startswith('+'):
next_lines = 3
prev_lines = lines[-3:]
lines.clear()
yield "".join(prev_lines + [
console.colorize("green", line) # type: ignore
if has_pygments else line
])
elif line.startswith('-'):
next_lines = 3
prev_lines = lines[-3:]
lines.clear()
yield "".join(prev_lines + [
console.colorize("red", line) # type: ignore
if has_pygments else line
])
elif line.startswith('?'):
next_lines = 3
prev_lines = lines[-3:]
lines.clear()
yield "".join(prev_lines + [
console.colorize("blue", line) # type: ignore
if has_pygments else line
])
else:
if next_lines > 0:
next_lines -= 1
yield line
else:
lines.append(line)
if __name__ == "__main__":
parser = ArgumentParser()
parser.add_argument("in_file",
help="input file (omit for stdin)",
nargs='?',
default=None)
parser.add_argument("-c",
"--check",
action='store_true',
help="just verify format of input",
default=False)
parser.add_argument("-d",
"--diff",
action='store_true',
help="with -c, print colored diff",
default=False)
parser.add_argument("-i",
"--in-place",
action='store_true',
help="modify input file in-place",
default=False)
parser.add_argument("-s",
"--sort",
action='store_true',
help="sort dependencies and remove duplicates",
default=False)
options = parser.parse_args()
if options.in_file:
with open(options.in_file, 'r') as f:
data = f.read()
else:
data = sys.stdin.read()
try:
data_formatted: str = data
if options.sort:
data_formatted = sort_targets_dependencies(data_formatted)
data_formatted: str = hdumps(json.loads(data_formatted))
except Exception as e:
# if the file contains syntax errors, we print the file name
if options.in_file:
print("Found syntax issues in", options.in_file)
print(e)
exit(1)
data_newline = data_formatted + '\n'
if options.check:
if data != data_newline:
print("Found format issues" + (
(" in file: " + options.in_file) if options.in_file else ":"))
if options.diff:
print("".join(color_diff(data, data_newline)))
exit(1)
exit(0)
if options.in_place and options.in_file:
out_file = f"{options.in_file}.out"
with open(out_file, 'w') as f:
f.write(data_newline)
os.rename(out_file, options.in_file)
exit(0)
print(data_formatted)
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