From: Vincent Driessen <me@nvie.com>
Date: Sun, 5 Apr 2020 15:05:54 +0000 (+0200)
Subject: Merge pull request #81 from skvrahul/master
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/0c7cf6dc038223b44e3c0a702fe2acf997768e8a?hp=ce9ac790430699d346aa074d7f339f2e738284e3

Merge pull request #81 from skvrahul/master

Adds option to show Error Message of line under cursor
---

diff --git a/README.mdown b/README.mdown
index 5d4e00c..338e445 100644
--- a/README.mdown
+++ b/README.mdown
@@ -104,6 +104,12 @@ To customize the colors used for markers, define the highlight groups, `Flake8_E
     highlight link Flake8_Naming     WarningMsg
     highlight link Flake8_PyFlake    WarningMsg
 
+To show the error message of the current line in the ruler, call `flake8#ShowError()`:
+
+    " add binding to call the function
+    nnoremap <C-K> :call flake8#Flake8ShowError()<cr>
+    
+
 Tips
 ----
 A tip might be to run the Flake8 check every time you write a Python file, to
diff --git a/autoload/flake8.vim b/autoload/flake8.vim
index cf592cf..180bcad 100644
--- a/autoload/flake8.vim
+++ b/autoload/flake8.vim
@@ -20,6 +20,10 @@ function! flake8#Flake8UnplaceMarkers()
     call s:Warnings()
 endfunction
 
+function! flake8#Flake8ShowError()
+    call s:ShowErrorMessage()
+endfunction
+
 "" }}}
 
 "" ** internal ** {{{
@@ -101,6 +105,7 @@ function! s:Setup()  " {{{
     let s:markerdata['F'].marker = s:flake8_pyflake_marker
     let s:markerdata['C'].marker = s:flake8_complexity_marker
     let s:markerdata['N'].marker = s:flake8_naming_marker
+
 endfunction  " }}}
 
 "" do flake8
@@ -154,11 +159,20 @@ function! s:Flake8()  " {{{
     let &shellpipe=l:old_shellpipe
     let &t_ti=l:old_t_ti
     let &t_te=l:old_t_te
+    " store mapping of line number to error string
 
     " process results
+    let s:resultDict = {} 
+
     let l:results=getqflist()
     let l:has_results=results != []
     if l:has_results
+	" save line number of each error message	
+        for result in l:results
+	    let linenum = result.lnum
+            let s:resultDict[linenum] = result.text
+	endfor
+
         " markers
         if !s:flake8_show_in_gutter == 0 || !s:flake8_show_in_file == 0
             call s:PlaceMarkers(l:results)
@@ -184,8 +198,9 @@ function! s:Flake8()  " {{{
     endif
 endfunction  " }}}
 
-"" markers
 
+
+"" markers
 function! s:PlaceMarkers(results)  " {{{
     " in gutter?
     if !s:flake8_show_in_gutter == 0
@@ -253,6 +268,29 @@ function! s:UnplaceMarkers()  " {{{
     endfor
 endfunction  " }}}
 
+function! s:ShowErrorMessage()  " {{{
+    let l:cursorPos = getpos(".")
+    if !exists('s:resultDict')
+	return
+    endif
+
+    " if there is a message on the current line,
+    " then echo it 
+    if has_key(s:resultDict, l:cursorPos[1])
+	let l:errorText = get(s:resultDict, l:cursorPos[1]) 
+	echo strpart(l:errorText, 0, &columns-1)
+	let b:showing_message = 1
+    endif
+
+    " if a message is already being shown,
+    " then clear it
+    if !b:showing_message == 0
+	echo
+	let b:showing_message = 0
+    endif
+
+endfunction  " }}}
+
 "" }}}
 
 let &cpo = s:save_cpo