Add -reverse option

Author: rbong

autoload/flog.vim

@@ -205,6 +205,7 @@ function! flog#get_internal_default_args() abort
         \ 'bisect': v:false,
         \ 'no_merges': v:false,
         \ 'reflog': v:false,
+        \ 'reverse': v:false,
         \ 'no_graph': v:false,
         \ 'no_patch': v:false,
         \ 'skip': v:null,
@@ -308,6 +309,8 @@ function! flog#parse_set_args(args, current_args, defaults) abort
       let a:current_args.no_merges = v:true
     elseif l:arg ==# '-reflog'
       let a:current_args.reflog = v:true
+    elseif l:arg ==# '-reverse'
+      let a:current_args.reverse = v:true
     elseif l:arg ==# '-no-graph'
       let a:current_args.no_graph = v:true
     elseif l:arg ==# '-no-patch'
@@ -812,6 +815,9 @@ function! flog#build_log_args() abort
   if l:opts.reflog
     let l:args .= ' --reflog'
   endif
+  if l:opts.reverse
+    let l:args .= ' --reverse'
+  endif
   if l:opts.no_patch
     let l:args .= ' --no-patch'
   endif
@@ -1105,6 +1111,9 @@ function! flog#set_graph_buffer_title() abort
   if l:opts.reflog
     let l:title .= ' [reflog]'
   endif
+  if l:opts.reverse
+    let l:title .= ' [reverse]'
+  endif
   if l:opts.no_graph
     let l:title .= ' [no_graph]'
   endif
@@ -1270,6 +1279,12 @@ function! flog#toggle_reflog_option() abort
   call flog#populate_graph_buffer()
 endfunction
 
+function! flog#toggle_reverse_option() abort
+  let l:state = flog#get_state()
+  let l:state.reverse = l:state.reverse ? v:false : v:true
+  call flog#populate_graph_buffer()
+endfunction
+
 function! flog#toggle_no_graph_option() abort
   let l:state = flog#get_state()
   let l:state.no_graph = l:state.no_graph ? v:false : v:true

doc/flog.txt

@@ -29,6 +29,7 @@ COMMANDS                                                       *flog-commands*
   -bisect               Enable the "--bisect" argument by default.
   -no-merges            Enable the "--no-merges" argument by default.
   -reflog               Enable the "--reflog" argument by default.
+  -reverse              Enable the "--reverse" argument by default.
   -no-graph             Disable the "--graph" argument by default.
   -no-patch             Enable the "--no-patch" argument by default.
   -skip=<number>        Passed to "--skip", skipping that number of commits by
@@ -245,6 +246,12 @@ gp                                                                   *flog-gp*
   Toggle the "--no-patch" argument. Useful while the "-limit" option is
   specified.
 
+gsr                                                *<Plug>(FlogToggleReverse)*
+                                                                    *flog-gsr*
+
+  Toggle the "--reverse" argument. Does not conflict with other sort options.
+  Mnemonic: "sort reverse".
+
                                                           *<Plug>(FlogUpdate)*
 u                                                                     *flog-u*
 

ftplugin/floggraph.vim

@@ -127,6 +127,11 @@ if !hasmapto('<Plug>(FlogToggleReflog)')
 endif
 nnoremap <buffer> <silent> <Plug>(FlogToggleReflog) :call flog#toggle_reflog_option()<CR>
 
+if !hasmapto('<Plug>(FlogToggleReverse)')
+  nmap <buffer> gsr <Plug>(FlogToggleReverse)
+endif
+nnoremap <buffer> <silent> <Plug>(FlogToggleReverse) :call flog#toggle_reverse_option()<CR>
+
 if !hasmapto('<Plug>(FlogToggleNoGraph)')
   nmap <buffer> gx <Plug>(FlogToggleNoGraph)
 endif

plugin/flog.vim

@@ -86,6 +86,7 @@ let g:flog_default_completion = [
       \ '-raw-args=',
       \ '-reflog ',
       \ '-rev=',
+      \ '-reverse',
       \ '-search=',
       \ '-skip='
       \ ]