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Refine docs of substitution options and add a test for option priority

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Yen Chi Hsuan 2017-10-12 22:46:30 +08:00
parent 78fef9d34d
commit 05b604530c
3 changed files with 13 additions and 12 deletions
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11
README.rst
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@ -127,15 +127,22 @@ max_concurrent
Global Options Global Options
-------------- --------------
The following options applies to all checkers. The following options apply to all checkers.
prefix prefix
Strip the prefix string if the version string starts with it. Strip the prefix string if the version string starts with it. Otherwise the
version string is returned as-is.
from_pattern, to_pattern from_pattern, to_pattern
Both are Python-compatible regular expressions. If ``from_pattern`` is found Both are Python-compatible regular expressions. If ``from_pattern`` is found
in the version string, it will be replaced with ``to_pattern``. in the version string, it will be replaced with ``to_pattern``.
If both ``prefix`` and ``from_pattern``/``to_pattern`` are used,
``from_pattern``/``to_pattern`` are ignored. If you want to strip the prefix
and then do something special, just use ``from_pattern```/``to_pattern``. For
example, the transformation of ``v1_1_0`` => ``1.1.0`` can be achieved with
``from_pattern = v(\d+)_(\d+)_(\d+)`` and ``to_pattern = \1.\2.\3``.
Search in a Webpage Search in a Webpage
------------------- -------------------
Search through a specific webpage for the version string. This type of version finding has these fields: Search through a specific webpage for the version string. This type of version finding has these fields:

11
nvchecker/get_version.py
View file

@ -17,16 +17,7 @@ handler_precedence = (
def substitute_version(version, name, conf): def substitute_version(version, name, conf):
''' '''
Substitute the version string via defined rules in the configuration file. Substitute the version string via defined rules in the configuration file.
Accepted rules are: See README.rst#global-options for details.
* from_pattern, to_pattern: Both should be Python regular expressions.
`from_pattern` found in the version string will be substituted to
`to_pattern`.
* prefix: If the version string starts with `prefix`, the prefix is removed.
Otherwise the version string is returned as-is.
If both prefix and from_pattern/to_pattern are used, from_pattern/to_pattern
are ignored.
''' '''
prefix = conf.get('prefix') prefix = conf.get('prefix')
if prefix: if prefix:

3
tests/test_substitute.py
View file

@ -15,3 +15,6 @@ async def test_substitute_regex(get_version):
async def test_substitute_regex_missing_ok(get_version): async def test_substitute_regex_missing_ok(get_version):
assert await get_version("example", {"manual": "r15", "from_pattern": r"r(\d+)([a-z])", "to_pattern": r"r\1.\2"}) == "r15" assert await get_version("example", {"manual": "r15", "from_pattern": r"r(\d+)([a-z])", "to_pattern": r"r\1.\2"}) == "r15"
async def test_substitute_prefix_has_higher_priority(get_version):
assert await get_version("example", {"manual": "r15", "prefix": "r", "from_pattern": "r(\d+)", "to_pattern": "R\1"}) == "15"