Extended default


  • introduce extended_default option name

  • off by default in v4 as previously soft/1 was an error

  • on by default in v5, option could even disappear

  • set as a separate option than advanced_version_spec

    • as it affects also basic soft/vers version specification

    • seem easier to understand for user if concepts are distinguished


  • Take partial version identifier and returns matches

    • for soft/ soft/ soft/10.1.1

    • query soft/10 returns highest among 3

    • query soft/10.1 returns highest among 3

    • query soft/1 returns nothing

    • query soft/10.1.2 returns highest among soft/ soft/

  • In situation where soft/1.1(default) soft/1.2 soft/2.1 soft/2.2

    • query soft/1 returns soft/1.1

    • query soft/2 returns soft/2.2

  • Character considered as version number separator: .

    • list: . and -

    • - 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)

    • not possible with + as it is used by variant specification

  • Does not apply to the root part of module name

    • e.g. foo.2

  • If implicit_default is disabled

    • it makes extended_default inoperative if queried version does not include a defined default

    • even if only one modulefile matches query

    • with situation described above query soft/1 returns soft/1.1

    • but query soft/2 returns an error as no default is found among version 2 modulefiles

  • Contexts where it could be used