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-rw-r--r--src/hydrilla/server/config.py110
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diff --git a/src/hydrilla/server/config.py b/src/hydrilla/server/config.py
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+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+# Loading Hydrilla server configuration file.
+#
+# This file is part of Hydrilla
+#
+# Copyright (C) 2022 Wojtek Kosior
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+#
+# I, Wojtek Kosior, thereby promise not to sue for violation of this
+# file's license. Although I request that you do not make use this code
+# in a proprietary program, I am not going to enforce this in court.
+
+import json
+
+from pathlib import Path
+
+import jsonschema
+
+from .. import util
+
+config_schema = {
+ '$schema': 'http://json-schema.org/draft-07/schema#',
+ 'type': 'object',
+ 'properties': {
+ 'malcontent_dir': {
+ 'type': 'string'
+ },
+ 'malcontent_dir': {
+ 'type': 'string'
+ },
+ 'hydrilla_project_url': {
+ 'type': 'string'
+ },
+ 'try_configs': {
+ 'type': 'array',
+ 'items': {
+ 'type': 'string'
+ }
+ },
+ 'use_configs': {
+ 'type': 'array',
+ 'items': {
+ 'type': 'string'
+ }
+ },
+ 'port': {
+ 'type': 'integer',
+ 'minimum': 0,
+ 'maximum': 65535
+ },
+ 'werror': {
+ 'type': 'boolean'
+ }
+ }
+}
+
+def load(config_paths: list[Path], can_fail: list[bool]=[]) -> dict:
+ config = {}
+
+ bools_missing = max(0, len(config_paths) - len(can_fail))
+ can_fail = [*can_fail[:len(config_paths)], *([False] * bools_missing)]
+
+ while config_paths:
+ path = config_paths.pop()
+ fail_ok = can_fail.pop()
+
+ try:
+ json_text = path.read_text()
+ except Exception as e:
+ if fail_ok:
+ continue
+ raise e from None
+
+ new_config = json.loads(util.strip_json_comments(json_text))
+ jsonschema.validate(new_config, config_schema)
+
+ config.update(new_config)
+
+ if 'malcontent_dir' in config:
+ malcontent_dir = Path(config['malcontent_dir'])
+ if not malcontent_dir.is_absolute():
+ malcontent_dir = path.parent / malcontent_dir
+
+ config['malcontent_dir'] = str(malcontent_dir.resolve())
+
+ for key, failure_ok in [('try_configs', True), ('use_configs', False)]:
+ paths = new_config.get(key, [])
+ paths.reverse()
+ config_paths.extend(paths)
+ can_fail.extend([failure_ok] * len(paths))
+
+ for key in ('try_configs', 'use_configs'):
+ if key in config:
+ config.pop(key)
+
+ return config