Airline default sections depend on absolute constraints

[Svalorzen]

I was looking into customizing section z, so I went into the source code that initializes the section to copy-paste its default parts into my custom initialization function.

I've found that the airline#init#sections() function defines the default sections differently depending on some conditions; for example, for sections b and z the condition is window width:

    if airline#util#winwidth() > 79
      let g:airline_section_z = airline#section#create(['windowswap', 'obsession', '%p%%', 'linenr', 'maxlinenr', 'colnr'])
    else
      let g:airline_section_z = airline#section#create(['%p%%', 'linenr', 'colnr'])
    endif

I did a couple of tests, and it seems that this means that the section contents depends on the windows width at startup, and does not change if the window size is modified (so if it started small, it will not add the other parts to it, and vice-versa). I assume this is the same for section c which also depends on a condition (autochdir).

Considering that it looks like airline offers support for conditional parts (line airline#parts#define_minwidth and airline#parts#define_condition), is this how the default initialization is supposed to happen? If yes, and I wanted to customize sections b/c/z, should I copy-paste the startup check, or am I supposed to used the conditional parts support?

environment

• vim: 9.0
• vim-airline: c7460aa
• OS: Lubuntu 20.04
• Have you reproduced with a minimal vimrc: no
• What is your airline configuration: default