|
15 | 15 | # We would appreciate acknowledgement if the software is used.
|
16 | 16 |
|
17 | 17 | """
|
18 |
| -This library is a wrapper for uuid, provided to generate repeatable UUIDs if requested. |
19 |
| -
|
20 |
| -The function local_uuid() should be used in code where a user could be expected to opt in to non-random UUIDs. |
| 18 | +This library was a wrapper for uuid, provided to generate repeatable UUIDs if requested. It is now a temporary re-export of functionality migrated to cdo_local_uuid. |
21 | 19 | """
|
22 | 20 |
|
23 | 21 | __version__ = "0.4.0"
|
24 | 22 |
|
25 | 23 | __all__ = ["configure", "local_uuid"]
|
26 | 24 |
|
27 |
| -import logging |
28 |
| -import os |
29 |
| -import pathlib |
30 |
| -import sys |
31 |
| -import typing |
32 |
| -import uuid |
33 | 25 | import warnings
|
34 | 26 |
|
35 |
| -DEMO_UUID_BASE: typing.Optional[str] = None |
36 |
| - |
37 |
| -DEMO_UUID_COUNTER: int = 0 |
38 |
| - |
39 |
| -_logger = logging.getLogger(pathlib.Path(__file__).name) |
40 |
| - |
41 |
| - |
42 |
| -def configure() -> None: |
43 |
| - """ |
44 |
| - This function is part of setting up _demo_uuid() to generate non-random UUIDs. See _demo_uuid() documentation for further setup notes. |
45 |
| - """ |
46 |
| - global DEMO_UUID_BASE |
47 |
| - |
48 |
| - if os.getenv("DEMO_UUID_REQUESTING_NONRANDOM") == "NONRANDOM_REQUESTED": |
49 |
| - warnings.warn( |
50 |
| - "Environment variable DEMO_UUID_REQUESTING_NONRANDOM is deprecated. See case_utils.local_uuid._demo_uuid for usage notes on its replacement, CASE_DEMO_NONRANDOM_UUID_BASE. Proceeding with random UUIDs.", |
51 |
| - FutureWarning, |
52 |
| - ) |
53 |
| - return |
54 |
| - |
55 |
| - env_base_dir_name = os.getenv("CASE_DEMO_NONRANDOM_UUID_BASE") |
56 |
| - if env_base_dir_name is None: |
57 |
| - return |
58 |
| - |
59 |
| - base_dir_original_path = pathlib.Path(env_base_dir_name) |
60 |
| - if not base_dir_original_path.exists(): |
61 |
| - warnings.warn( |
62 |
| - "Environment variable CASE_DEMO_NONRANDOM_UUID_BASE is expected to refer to an existing directory. Proceeding with random UUIDs.", |
63 |
| - RuntimeWarning, |
64 |
| - ) |
65 |
| - return |
66 |
| - if not base_dir_original_path.is_dir(): |
67 |
| - warnings.warn( |
68 |
| - "Environment variable CASE_DEMO_NONRANDOM_UUID_BASE is expected to refer to a directory. Proceeding with random UUIDs.", |
69 |
| - RuntimeWarning, |
70 |
| - ) |
71 |
| - return |
72 |
| - |
73 |
| - # Component: An emphasis this is an example. |
74 |
| - demo_uuid_base_parts = ["example.org"] |
75 |
| - |
76 |
| - # Component: Present working directory, relative to CASE_DEMO_NONRANDOM_UUID_BASE if that environment variable is an ancestor of pwd. |
77 |
| - base_dir_resolved_path = base_dir_original_path.resolve() |
78 |
| - srcdir_original_path = pathlib.Path(os.getcwd()) |
79 |
| - srcdir_resolved_path = srcdir_original_path.resolve() |
80 |
| - # _logger.debug("base_dir_resolved_path = %r.", base_dir_resolved_path) |
81 |
| - # _logger.debug("srcdir_resolved_path = %r.", srcdir_resolved_path) |
82 |
| - try: |
83 |
| - srcdir_relative_path = srcdir_resolved_path.relative_to(base_dir_resolved_path) |
84 |
| - # _logger.debug("srcdir_relative_path = %r.", srcdir_relative_path) |
85 |
| - demo_uuid_base_parts.append(str(srcdir_relative_path)) |
86 |
| - except ValueError: |
87 |
| - # If base_dir is not an ancestor directory of srcdir, default to srcdir. |
88 |
| - # _logger.debug("PWD is not relative to base path.") |
89 |
| - demo_uuid_base_parts.append(str(srcdir_resolved_path)) |
90 |
| - |
91 |
| - # Component: Command of argument vector. |
92 |
| - env_venv_name = os.getenv("VIRTUAL_ENV") |
93 |
| - if env_venv_name is None: |
94 |
| - demo_uuid_base_parts.append(sys.argv[0]) |
95 |
| - else: |
96 |
| - command_original_path = pathlib.Path(sys.argv[0]) |
97 |
| - command_resolved_path = command_original_path.resolve() |
98 |
| - venv_original_path = pathlib.Path(env_venv_name) |
99 |
| - venv_resolved_path = venv_original_path.resolve() |
100 |
| - try: |
101 |
| - command_relative_path = command_resolved_path.relative_to( |
102 |
| - venv_resolved_path |
103 |
| - ) |
104 |
| - # _logger.debug("command_relative_path = %r.", command_relative_path) |
105 |
| - demo_uuid_base_parts.append(str(command_relative_path)) |
106 |
| - except ValueError: |
107 |
| - # _logger.debug("Command path is not relative to virtual environment path.") |
108 |
| - demo_uuid_base_parts.append(str(command_resolved_path)) |
109 |
| - |
110 |
| - if len(sys.argv) > 1: |
111 |
| - # Component: Arguments of argument vector. |
112 |
| - demo_uuid_base_parts.extend(sys.argv[1:]) |
113 |
| - |
114 |
| - # _logger.debug("demo_uuid_base_parts = %r.", demo_uuid_base_parts) |
115 |
| - |
116 |
| - DEMO_UUID_BASE = "/".join(demo_uuid_base_parts) |
117 |
| - |
118 |
| - |
119 |
| -def _demo_uuid() -> str: |
120 |
| - """ |
121 |
| - This function generates a repeatable UUID, drawing on non-varying elements of the environment and process call for entropy. |
122 |
| -
|
123 |
| - This function is not intended to be called outside of this module. Instead, local_uuid() should be called. |
124 |
| -
|
125 |
| - WARNING: This function was developed for use ONLY for reducing (but not eliminating) version-control edits to identifiers when generating sample data. It creates UUIDs that are decidedly NOT random, and should remain consistent on repeated calls to the importing script. |
126 |
| -
|
127 |
| - To prevent accidental non-random UUID usage, two setup steps need to be done before calling this function: |
128 |
| -
|
129 |
| - * An environment variable, CASE_DEMO_NONRANDOM_UUID_BASE, must be set to a string provided by the caller. The variable's required value is the path to some directory. The variable's recommended value is the equivalent of the Make variable "top_srcdir" - that is, the root directory of the containing Git repository, some parent of the current process's current working directory. |
130 |
| - * The configure() function in this module must be called. |
131 |
| - """ |
132 |
| - global DEMO_UUID_BASE |
133 |
| - global DEMO_UUID_COUNTER |
134 |
| - |
135 |
| - if os.getenv("CASE_DEMO_NONRANDOM_UUID_BASE") is None: |
136 |
| - raise ValueError( |
137 |
| - "demo_uuid() called without CASE_DEMO_NONRANDOM_UUID_BASE in environment." |
138 |
| - ) |
139 |
| - |
140 |
| - if DEMO_UUID_BASE is None: |
141 |
| - raise ValueError("demo_uuid() called with DEMO_UUID_BASE unset.") |
142 |
| - |
143 |
| - parts = [DEMO_UUID_BASE] |
144 |
| - |
145 |
| - # Component: Incrementing counter. |
146 |
| - DEMO_UUID_COUNTER += 1 |
147 |
| - parts.append(str(DEMO_UUID_COUNTER)) |
148 |
| - |
149 |
| - return str(uuid.uuid5(uuid.NAMESPACE_URL, "/".join(parts))) |
150 |
| - |
| 27 | +from cdo_local_uuid import configure, local_uuid |
151 | 28 |
|
152 |
| -def local_uuid() -> str: |
153 |
| - """ |
154 |
| - Generate either a UUID4, or if requested via environment configuration, a non-random demo UUID. |
155 |
| - """ |
156 |
| - global DEMO_UUID_BASE |
157 |
| - if DEMO_UUID_BASE is None: |
158 |
| - return str(uuid.uuid4()) |
159 |
| - else: |
160 |
| - return _demo_uuid() |
| 29 | +warnings.warn( |
| 30 | + "case_utils.local_uuid has exported its functionality to cdo_local_uuid. Imports should be changed to use cdo_local_uuid. case_utils currently re-exports that functionality, but this will cease in a future release.", |
| 31 | + DeprecationWarning, |
| 32 | +) |
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