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63 lines
2.1 KiB
ReStructuredText
63 lines
2.1 KiB
ReStructuredText
.. _extended-default:
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Extended default
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================
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Configuration
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-------------
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- introduce :mconfig:`extended_default` option name
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- off by default in v4 as previously soft/1 was an error
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- on by default in v5, option could even disappear
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- set as a separate option than *advanced_version_spec*
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- as it affects also basic soft/vers version specification
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- seem easier to understand for user if concepts are distinguished
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Specification
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-------------
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- Take partial version identifier and returns matches
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- for soft/10.1.2.4 soft/10.1.2.3 soft/10.1.1
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- query soft/10 returns highest among 3
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- query soft/10.1 returns highest among 3
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- query soft/1 returns nothing
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- query soft/10.1.2 returns highest among soft/10.1.2.4 soft/10.1.2.3
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- In situation where soft/1.1(default) soft/1.2 soft/2.1 soft/2.2
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- query soft/1 returns soft/1.1
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- query soft/2 returns soft/2.2
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- Character considered as version number separator: ``.``
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- list: ``.`` and ``-``
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- ``-`` was also considered initially, but cannot determine in all case the highest version specified after this character (may find a hash name, strings like *rc*, *alpha*, *beta*, etc)
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- not possible with ``+`` as it is used by variant specification
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- Does not apply to the root part of module name
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- e.g. *foo.2*
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- If :mconfig:`implicit_default` is disabled
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- it makes ``extended_default`` inoperative if queried version does not include a defined default
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- even if only one modulefile matches query
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- with situation described above query soft/1 returns soft/1.1
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- but query soft/2 returns an error as no default is found among version 2 modulefiles
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- Contexts where it could be used
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- :ref:`module_version_specification_to_return_all_matching_modules`
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- on specification that are processed as a wild search, ``extended_default`` has no impact
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- as a wildcard character ``*`` is appended to specification
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- affects ``avail`` sub-command
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- :ref:`module_version_specification_to_select_one_module`
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- :ref:`module_version_specification_to_check_compatibility`
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.. vim:set tabstop=2 shiftwidth=2 expandtab autoindent:
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