Add more range capabilities

autoload/flog/cmd/flog/args.vim

@@ -338,3 +338,24 @@ function! flog#cmd#flog#args#Complete(arg_lead, cmd_line, cursor_pos) abort
   endif
   return flog#args#FilterCompletions(a:arg_lead, l:default_completion)
 endfunction
+
+" Get arguments for a range passed to Flog.
+function! flog#cmd#flog#args#GetRangeArgs(range, line1, line2) abort
+  let l:limit = ''
+
+  if a:range ==# 1
+    if a:line1 ==# 0
+      let l:limit = '1,'
+    else
+      let l:limit = a:line1 . ',' . a:line2
+    endif
+  elseif a:range ==# 2
+    let l:limit = a:line1 . ',' . a:line2
+  endif
+
+  if l:limit !=# ''
+    return ['-limit=' . l:limit . ':' . expand('%:p')]
+  endif
+
+  return []
+endfunction

doc/flog.txt

@@ -36,8 +36,10 @@ These commands open Flog.
   run from any file in a git repository. Any |fugitive-commands| can be run
   from the buffer.
 
-  When opened in visual mode or passed a range, the currently selected range
-  and filename is passed to "-limit=".
+  When opened in visual mode or passed a range, the selected range and
+  filename is passed to "-limit".
+
+  When called with range "0", passes the entire file to "-limit".
 
   The first time this is called, runs "git commit-graph write". This can be
   changed with |g:flog_write_commit_graph|.

plugin/flog.vim

@@ -135,6 +135,6 @@ let g:flog_open_cmd_modifiers = [
 
 " Commands
 
-command! -range=0 -complete=customlist,flog#cmd#flog#args#Complete -nargs=* Flog call flog#cmd#Flog((<range> ==# 2 ? ['-limit=<line1>,<line2>:' .. expand('%:p')] : []) + [<f-args>])
-command! -range=0 -complete=customlist,flog#cmd#flog#args#Complete -nargs=* Flogsplit call flog#cmd#Flog((<range> ==# 2 ? ['-limit=<line1>,<line2>:' .. expand('%:p')] : []) + ['-open-cmd=<mods> split', <f-args>])
+command! -range=0 -complete=customlist,flog#cmd#flog#args#Complete -nargs=* Flog call flog#cmd#Flog(flog#cmd#flog#args#GetRangeArgs(<range>, <line1>, <line2>) + [<f-args>])
+command! -range=0 -complete=customlist,flog#cmd#flog#args#Complete -nargs=* Flogsplit call flog#cmd#Flog(flog#cmd#flog#args#GetRangeArgs(<range>, <line1>, <line2>) + ['-open-cmd=<mods> split', <f-args>])
 command! -range -bang -complete=customlist,flog#cmd#floggit#args#Complete -nargs=* Floggit call flog#cmd#Floggit('<mods>', '<args>', '<bang>')