Yield parsed PackageData objects from ``location``. Raises Exceptions on errors. Use the provided ``datafile_handlers`` list of DatafileHandler classes. Default to use application packages
(
location,
application=True,
system=False,
compiled=False,
package_only=False,
)
| 69 | |
| 70 | |
| 71 | def _parse( |
| 72 | location, |
| 73 | application=True, |
| 74 | system=False, |
| 75 | compiled=False, |
| 76 | package_only=False, |
| 77 | ): |
| 78 | """ |
| 79 | Yield parsed PackageData objects from ``location``. Raises Exceptions on errors. |
| 80 | |
| 81 | Use the provided ``datafile_handlers`` list of DatafileHandler classes. |
| 82 | Default to use application packages |
| 83 | """ |
| 84 | |
| 85 | package_path = as_posixpath(location) |
| 86 | package_patterns = get_cache() |
| 87 | |
| 88 | has_patterns = application or system or package_only |
| 89 | assert has_patterns or compiled |
| 90 | if package_only or (application and system): |
| 91 | package_matcher = package_patterns.all_package_matcher |
| 92 | elif application: |
| 93 | package_matcher = package_patterns.application_package_matcher |
| 94 | elif system: |
| 95 | package_matcher = package_patterns.system_package_matcher |
| 96 | |
| 97 | matched_patterns = [] |
| 98 | if has_patterns: |
| 99 | matched_patterns = package_matcher.match(package_path) |
| 100 | |
| 101 | all_handler_ids = [] |
| 102 | for matched_pattern in matched_patterns: |
| 103 | regex, _match = matched_pattern |
| 104 | handler_ids = package_patterns.handler_by_regex.get(regex.pattern) |
| 105 | if TRACE: |
| 106 | logger_debug(f'_parse:.handler_ids: {handler_ids}') |
| 107 | |
| 108 | all_handler_ids.extend([ |
| 109 | handler_id |
| 110 | for handler_id in handler_ids |
| 111 | if handler_id not in all_handler_ids |
| 112 | ]) |
| 113 | |
| 114 | datafile_handlers = [ |
| 115 | HANDLER_BY_DATASOURCE_ID.get(handler_id) |
| 116 | for handler_id in all_handler_ids |
| 117 | ] |
| 118 | |
| 119 | if not datafile_handlers: |
| 120 | if compiled: |
| 121 | datafile_handlers.extend(PACKAGE_IN_COMPILED_DATAFILE_HANDLERS) |
| 122 | elif TRACE: |
| 123 | logger_debug(f'_parse: no package datafile detected at {package_path}') |
| 124 | |
| 125 | for handler in datafile_handlers: |
| 126 | if TRACE: |
| 127 | logger_debug(f'_parse:.is_datafile: {handler}') |
| 128 |
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