fern: only change directory if we are in a fern window

Signed-off-by: Christian Brabandt <cb@256bit.org>

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   test:
     name: Test
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         vim:

CHANGELOG.md

@@ -24,6 +24,7 @@ This is the Changelog for the vim-airline project.
   - coc extensions can also show additional status messages as well as the current function
   - [coc-git](https://github.com/neoclide/coc-git) extension integrated into hunks extension
   - rewrote parts using Vim9 Script for performance improvements
+  - [vim-obsession](https://github.com/tpope/vim-obsession) allow to set paused indicator
 - Other
   - Changed CI from travis-ci.org to GitHub Actions
   - Introduce Vim script static analysis using [reviewdog](https://github.com/reviewdog/action-vint)
@@ -85,7 +86,7 @@ This is the Changelog for the vim-airline project.
   - [fugitive](https://github.com/tpope/vim-fugitive) plugin has been refactored
     causing adjustments for vim-airline, also uses Fugitives new API calls
   - some improvements to Vims terminal mode
-  - Allow to use alternative seperators for inactive windows ([#1236](https://github.com/vim-airline/vim-airline/issues/1236))
+  - Allow to use alternative separators for inactive windows ([#1236](https://github.com/vim-airline/vim-airline/issues/1236))
   - Statusline can be set to inactive, whenever Vim loses focus (using FocusLost autocommand)
 
 ## [0.9] - 2018-01-15
@@ -135,7 +136,7 @@ This is the Changelog for the vim-airline project.
 ## [0.8] - 2016-03-09
 - Changes
   - Airline converted to an organization and moved to new [repository](https://github.com/vim-airline/vim-airline)
-  - Themes have been split into an separate repository [vim-airline-themes](https://github.com/vim-airline/vim-airline-themes)
+  - Themes have been split into a separate repository [vim-airline-themes](https://github.com/vim-airline/vim-airline-themes)
 - Improvements
   - Extensions
     - branch: support Git and Mercurial simultaneously, untracked files

autoload/airline/extensions/fern.vim

@@ -7,30 +7,57 @@ if !get(g:, 'loaded_fern', 0)
   finish
 endif
 
-function! airline#extensions#fern#apply(...) abort
-  if (&ft =~# 'fern')
-    let spc = g:airline_symbols.space
-    let fri = fern#fri#parse(expand('%f'))
-
-    call a:1.add_section('airline_a', spc.'fern'.spc)
-    if exists('*airline#extensions#branch#get_head')
-      call a:1.add_section('airline_b', spc.'%{airline#extensions#branch#get_head()}'.spc)
-    else
-      call a:1.add_section('airline_b', '')
-    endif
-    if !(fri.authority =~# '^drawer')
-      let abspath = substitute(fri.path, 'file://', '', '')
-      call a:1.add_section('airline_c', spc.fnamemodify(abspath, ':~'))
-      call a:1.split()
-      if len(get(g:, 'fern#comparators', {}))
-        call a:1.add_section('airline_y', spc.'%{fern#comparator}'.spc)
-      endif
-    endif
+function! airline#extensions#fern#apply_active(...) abort
+  " check if current buffer is both fern and active
+  if (&ft =~# 'fern') && a:2.active ==# '1'
+    call airline#extensions#fern#configure_sections(a:1, a:2)
     return 1
   endif
 endfunction
 
+
+function! airline#extensions#fern#apply_inactive(...) abort
+  " check if referenced buffer is both fern and inactive
+  if getbufvar(a:2.bufnr, '&filetype') ==# 'fern' && a:2.active ==# '0'
+    call airline#extensions#fern#configure_sections(a:1, a:2)
+    return 1
+  endif
+endfunction
+
+function! airline#extensions#fern#configure_sections(win, context) abort
+  let spc = g:airline_symbols.space
+  let fri = fern#fri#parse(bufname(a:context.bufnr))
+  let abspath = ''
+  " Replace uses fern-replacer filetype, do not try to parse in that case
+  if &ft ==# 'fern' && fri.scheme ==# 'fern'
+    let abspath = fern#fri#to#filepath(fern#fri#parse(fri.path))
+  endif
+  call a:win.add_section('airline_a', spc.'fern'.spc)
+  if exists('*airline#extensions#branch#get_head')
+    " because fern navigation changes an internal _fri_ and not the working directory
+    " we need to give it some help so the branch name gets updated
+    try
+      if &ft ==# 'fern'
+        execute 'lcd' fnameescape(abspath)
+      endif
+    catch /^Vim\%((\a\+)\)\=:E344:/
+      call a:win.add_section('airline_b', '')
+    endtry
+    call a:win.add_section('airline_b', spc.'%{airline#extensions#branch#get_head()}'.spc)
+  else
+    call a:win.add_section('airline_b', '')
+  endif
+  if !(fri.authority =~# '^drawer')
+    call a:win.add_section('airline_c', spc.fnamemodify(abspath, ':~'))
+    call a:win.split()
+    if len(get(g:, 'fern#comparators', {}))
+      call a:win.add_section('airline_y', spc.'%{fern#comparator}'.spc)
+    endif
+  endif
+endfunction
+
 function! airline#extensions#fern#init(ext) abort
   let g:fern_force_overwrite_statusline = 0
-  call a:ext.add_statusline_func('airline#extensions#fern#apply')
+  call a:ext.add_statusline_func('airline#extensions#fern#apply_active')
+  call a:ext.add_inactive_statusline_func('airline#extensions#fern#apply_inactive')
 endfunction

autoload/airline/extensions/nvimlsp.vim

@@ -47,7 +47,7 @@ endfunction
 
 function! s:airline_nvimlsp_get_line_number(cnt, type) abort
   let severity = a:type == 'Warning' ? 'Warn' : a:type
-  let num = v:lua.vim.diagnostic.get(0, { 'severity': severity })[0].lnum
+  let num = v:lua.vim.diagnostic.get(0, { 'severity': severity })[0].lnum + 1
 
   let l:open_lnum_symbol  =
     \ get(g:, 'airline#extensions#nvimlsp#open_lnum_symbol', '(L')

autoload/airline/extensions/obsession.vim

@@ -14,10 +14,14 @@ if !exists('g:airline#extensions#obsession#indicator_text')
   let g:airline#extensions#obsession#indicator_text = '$'
 endif
 
+if !exists('g:airline#extensions#obsession#indicator_text_paused')
+  let g:airline#extensions#obsession#indicator_text_paused = '' " vim-obsession defaults to 'S'
+endif
+
 function! airline#extensions#obsession#init(ext)
   call airline#parts#define_function('obsession', 'airline#extensions#obsession#get_status')
 endfunction
 
 function! airline#extensions#obsession#get_status()
-  return ObsessionStatus((g:airline#extensions#obsession#indicator_text . s:spc), '')
+  return ObsessionStatus((g:airline#extensions#obsession#indicator_text . s:spc), (g:airline#extensions#obsession#indicator_text_paused . s:spc))
 endfunction

autoload/airline/extensions/tabline/buffers.vim

@@ -4,8 +4,8 @@
 scriptencoding utf-8
 
 let s:spc = g:airline_symbols.space
-
 let s:current_bufnr = -1
+let s:current_tabnr = -1
 let s:current_modified = 0
 let s:current_tabline = ''
 let s:current_visible_buffers = []
@@ -49,14 +49,15 @@ function! airline#extensions#tabline#buffers#invalidate()
 endfunction
 
 function! airline#extensions#tabline#buffers#get()
+  let curbuf = bufnr('%')
+  let curtab = tabpagenr()
   try
     call <sid>map_keys()
   catch
     " no-op
   endtry
-  let cur = bufnr('%')
-  if cur == s:current_bufnr && &columns == s:column_width
-    if !g:airline_detect_modified || getbufvar(cur, '&modified') == s:current_modified
+  if curbuf == s:current_bufnr && curtab == s:current_tabnr && &columns == s:column_width
+    if !g:airline_detect_modified || getbufvar(curbuf, '&modified') == s:current_modified
       return s:current_tabline
     endif
   endif
@@ -77,10 +78,10 @@ function! airline#extensions#tabline#buffers#get()
   let b.overflow_group = 'airline_tabhid'
   let b.buffers = airline#extensions#tabline#buflist#list()
   if get(g:, 'airline#extensions#tabline#current_first', 0)
-    if index(b.buffers, cur) > -1
-      call remove(b.buffers, index(b.buffers, cur))
+    if index(b.buffers, curbuf) > -1
+      call remove(b.buffers, index(b.buffers, curbuf))
     endif
-    let b.buffers = [cur] + b.buffers
+    let b.buffers = [curbuf] + b.buffers
   endif
 
   function! b.get_group(i) dict
@@ -129,7 +130,7 @@ function! airline#extensions#tabline#buffers#get()
     endif
   endfunction
 
-  let current_buffer = max([index(b.buffers, cur), 0])
+  let current_buffer = max([index(b.buffers, curbuf), 0])
   let last_buffer = len(b.buffers) - 1
   call b.insert_titles(current_buffer, 0, last_buffer)
 
@@ -142,7 +143,8 @@ function! airline#extensions#tabline#buffers#get()
 
   call airline#extensions#tabline#add_tab_label(b)
 
-  let s:current_bufnr = cur
+  let s:current_bufnr = curbuf
+  let s:current_tabnr = curtab
   let s:column_width = &columns
   let s:current_tabline = b.build()
   let s:current_visible_buffers = copy(b.buffers)

autoload/airline/extensions/whitespace.vim

@@ -51,7 +51,8 @@ endfunction
 
 function! s:conflict_marker()
   " Checks for git conflict markers
-  let annotation = '\%([0-9A-Za-z_.:]\+\)\?'
+  " space required for jj conflict marker: #2727
+  let annotation = '\%([0-9A-Za-z_.: ]\+\)\?'
   if match(['rst', 'markdown', 'rmd'], &ft) >= 0
     " rst filetypes use '=======' as header
     let pattern = '^\%(\%(<\{7} '.annotation. '\)\|\%(>\{7\} '.annotation.'\)\)$'

autoload/airline/highlighter.vim

@@ -186,6 +186,13 @@ if !exists(":def") || !airline#util#has_vim9_script()
     call <sid>exec_separator({}, a:from, a:to, a:inverse, '')
   endfunction
 
+  function! airline#highlighter#remove_separators_for_bufnr(bufnr) abort
+    " remove all separators, that have the buffer number in their name,
+    " but do not be too greedy!
+    let pat = 'c' . a:bufnr . '\(\D\|$\)'
+    call filter(s:separators, 'v:key !~# pat')
+  endfunction
+
   function! s:exec_separator(dict, from, to, inverse, suffix) abort
     if pumvisible()
       return
@@ -529,6 +536,13 @@ else
     s:exec_separator({}, from, to, inverse, '')
   enddef
 
+  def airline#highlighter#remove_separators_for_bufnr(bufnr: string): void
+    # remove all separators, that have the bufnr in its name, make sure we 
+    # have a full match here
+    const pat = $'c{bufnr}\(\D\|$\)'
+    filter(s:separators, (k, v) => k !~# pat)
+  enddef
+
   def s:exec_separator(dict: dict<any>, from_arg: string, to_arg: string, inverse: bool, suffix: string): void
     if pumvisible()
       return
@@ -681,5 +695,5 @@ else
         endfor
       endif
     endfor
-	enddef
+  enddef
 endif

autoload/airline/init.vim

@@ -129,15 +129,21 @@ function! airline#init#bootstrap()
     call extend(g:airline_symbols, {
           \ 'readonly': "\ue0a2",
           \ 'whitespace': "\u2632",
-          \ 'maxlinenr': "\u2630 ",
+          \ 'maxlinenr': "\u2261 ",
           \ 'linenr': " \ue0a1:",
           \ 'colnr': " \u2105:",
           \ 'branch': "\ue0a0",
           \ 'notexists': "\u0246",
           \ 'dirty': "\u26a1",
           \ 'crypt': nr2char(0x1F512),
+          \ 'executable': "\u2699",
           \ }, 'keep')
     "  Note: If "\u2046" (Ɇ) does not show up, try to use "\u2204" (∄)
+    if exists("*setcellwidths")
+      " whitespace char 0x2632 changed to double-width in Unicode 16,
+      " mark it single width again
+      call setcellwidths([[0x2632, 0x2632, 1]])
+    endif
   elseif &encoding==?'utf-8' && !get(g:, "airline_symbols_ascii", 0)
     " Symbols for Unicode terminals
     call s:check_defined('g:airline_left_sep', "")
@@ -148,13 +154,14 @@ function! airline#init#bootstrap()
     call extend(g:airline_symbols, {
           \ 'readonly': "\u229D",
           \ 'whitespace': "\u2632",
-          \ 'maxlinenr': "\u2630",
+          \ 'maxlinenr': "\u2261",
           \ 'linenr': " \u33d1:",
           \ 'colnr': " \u2105:",
           \ 'branch': "\u16A0",
           \ 'notexists': "\u0246",
           \ 'crypt': nr2char(0x1F512),
           \ 'dirty': '!',
+          \ 'executable': "\u2699",
           \ }, 'keep')
   else
     " Symbols for ASCII terminals
@@ -172,6 +179,7 @@ function! airline#init#bootstrap()
           \ 'notexists': '?',
           \ 'crypt': 'cr',
           \ 'dirty': '!',
+          \ 'executable': 'x',
           \ }, 'keep')
   endif
 
@@ -184,6 +192,7 @@ function! airline#init#bootstrap()
   call airline#parts#define_function('crypt', 'airline#parts#crypt')
   call airline#parts#define_function('spell', 'airline#parts#spell')
   call airline#parts#define_function('filetype', 'airline#parts#filetype')
+  call airline#parts#define_function('executable', 'airline#parts#executable')
   call airline#parts#define('readonly', {
         \ 'function': 'airline#parts#readonly',
         \ 'accent': 'red',
@@ -195,7 +204,7 @@ function! airline#init#bootstrap()
   endif
   call airline#parts#define_raw('path', '%F%m')
   call airline#parts#define('linenr', {
-        \ 'raw': '%{g:airline_symbols.linenr}%l',
+        \ 'raw': '%{g:airline_symbols.linenr}%2l',
         \ 'accent': 'bold'})
   call airline#parts#define('maxlinenr', {
         \ 'raw': '/%L%{g:airline_symbols.maxlinenr}',
@@ -248,7 +257,7 @@ endfunction
 function! airline#init#sections()
   let spc = g:airline_symbols.space
   if !exists('g:airline_section_a')
-    let g:airline_section_a = airline#section#create_left(['mode', 'crypt', 'paste', 'keymap', 'spell', 'capslock', 'xkblayout', 'iminsert'])
+    let g:airline_section_a = airline#section#create_left(['mode', 'crypt', 'paste', 'keymap', 'spell', 'capslock', 'xkblayout', 'iminsert', 'executable'])
   endif
   if !exists('g:airline_section_b')
     if airline#util#winwidth() > 99

autoload/airline/parts.vim

@@ -206,3 +206,11 @@ function! airline#parts#ffenc()
     return &fenc.bomb.noeolf.ff
   endif
 endfunction
+
+function! airline#parts#executable()
+  if exists("*getfperm") && getfperm(bufname('%')) =~ 'x'
+    return g:airline_symbols.executable
+  else
+    return ''
+  endif
+endfunction

doc/airline.txt

@@ -1,4 +1,4 @@
-*airline.txt*  Lean and mean status/tabline that's light as air
+*airline.txt*	Lean and mean status/tabline that's light as air
 *airline* *vim-airline*
                   _                       _      _ _                        ~
            __   _(_)_ __ ___         __ _(_)_ __| (_)_ __   ___             ~
@@ -374,6 +374,7 @@ its contents. >
   let g:airline_symbols.colnr = ' ㏇:'
   let g:airline_symbols.colnr = ' ℅:'
   let g:airline_symbols.crypt = '🔒'
+  let g:airline_symbols.executable = '⚙'
   let g:airline_symbols.linenr = '☰'
   let g:airline_symbols.linenr = ' ␊:'
   let g:airline_symbols.linenr = ' ␤:'
@@ -427,7 +428,7 @@ window.
 >
   variable names                default contents
   ---------------------------------------------------------------------------
-  let g:airline_section_a       (mode, crypt, paste, spell, iminsert)
+  let g:airline_section_a       (mode, crypt, paste, spell, iminsert, executable)
   let g:airline_section_b       (hunks, branch)[*]
   let g:airline_section_c       (bufferline or filename, readonly)
   let g:airline_section_gutter  (csv)
@@ -998,8 +999,11 @@ vim-obsession <https://github.com/tpope/vim-obsession>
 * enable/disable vim-obsession integration >
   let g:airline#extensions#obsession#enabled = 1
 
-* set marked window indicator string >
+* set marked window indicator string when recording session>
   let g:airline#extensions#obsession#indicator_text = '$'
+
+* set marked window indicator string when recording session is paused>
+  let g:airline#extensions#obsession#indicator_text_paused = ''
 <
 -------------------------------------                    *airline-omnisharp*
 OmniSharp <https://github.com/OmniSharp/omnisharp-vim>
@@ -1207,7 +1211,7 @@ Note: Not displayed if the number of tabs is less than 1
   In default mode, when the variable is 1 Up to 10 mappings will be
   exposed. Note: As 10 and 1 have same prefix, we use 0 to replace 10. So,
   <leader>0 will jump to tenth buffer. Those mappings are not automatically
-  created, vim-airline just exposes those `<Plug>AirlineSeelctTab` keys
+  created, vim-airline just exposes those `<Plug>AirlineSelectTab` keys
   for you to map to a convenient key >
 
   let g:airline#extensions#tabline#buffer_idx_mode = 1
@@ -1918,6 +1922,7 @@ The following list of parts are predefined by vim-airline.
 * `iminsert`     displays the current insert method
 * `paste`        displays the paste indicator
 * `crypt`        displays the crypted indicator
+* `exectuable`   displays the executable indicator
 * `spell`        displays the spell indicator
 * `filetype`     displays the file type
 * `readonly`     displays the read only indicator

plugin/airline.vim

@@ -48,6 +48,7 @@ function! s:init()
 endfunction
 
 let s:active_winnr = -1
+
 function! s:on_window_changed(event)
   " don't trigger for Vim popup windows
   if &buftype is# 'popup'
@@ -67,11 +68,20 @@ function! s:on_window_changed(event)
         \ && &ft !~? 'gitcommit'
     " fugitive is special, it changes names and filetypes several times,
     " make sure the caching does not get into its way
+    if a:event ==# 'BufUnload'
+      " in the BufUnload event, make sure the cacheing does not prevent
+      " removing stale entries
+      call airline#highlighter#remove_separators_for_bufnr(expand('<abuf>'))
+    endif
     return
   endif
   let g:airline_last_window_changed = l:key
   call s:init()
   call airline#update_statusline()
+
+  if a:event ==# 'BufUnload'
+    call airline#highlighter#remove_separators_for_bufnr(expand('<abuf>'))
+  endif
 endfunction
 
 function! s:on_focus_gained()

test/init.vimspec

@@ -47,7 +47,7 @@ Describe init.vim
 
   It section z should be line numbers
     Assert Match(g:airline_section_z, '%p%%')
-    Assert Match(g:airline_section_z, '%l')
+    Assert Match(g:airline_section_z, '%2l')
     Assert Match(g:airline_section_z, '%v')
   End