Add view log func

autoload/SpaceVim/api/logger.vim

@@ -3,48 +3,55 @@ let s:self = {
             \ 'name' : '',
             \ 'silent' : 1,
             \ 'file' : '',
+            \ 'temp' : [],
             \ }
 
+let s:levels = ['Info', 'Warn', 'Error']
+
 function! SpaceVim#api#logger#get() abort
     return deepcopy(s:self)
 endfunction
 
 
 function! s:self.error(msg) abort
-  let time = strftime('%H:%M:%S')
-  let log = '[ ' . self.name . ' ] [' . time . '] [ Error ] ' . a:msg
-  if !self.silent
-      echoerr log
-  endif
-  call self.write(log)
+    let time = strftime('%H:%M:%S')
+    let log = '[ ' . self.name . ' ] [' . time . '] [ Error ] ' . a:msg
+    if !self.silent
+        echoerr log
+    endif
+    call self.write(log)
 endfunction
 
 function! s:self.write(msg) abort
-  if !isdirectory(fnamemodify(self.file, ':p:h'))
-    call mkdir(expand(fnamemodify(self.file, ':p:h')), 'p')
-  endif
-  let flags = filewritable(self.file) ? 'a' : ''
-  call writefile([a:msg], self.file, flags)
+    if empty(self.file)
+        call add(self.temp, a:msg)
+        return
+    endif
+    if !isdirectory(fnamemodify(self.file, ':p:h'))
+        call mkdir(expand(fnamemodify(self.file, ':p:h')), 'p')
+    endif
+    let flags = filewritable(self.file) ? 'a' : ''
+    call writefile([a:msg], self.file, flags)
 endfunction
 
 function! s:self.warn(msg) abort
-  let time = strftime('%H:%M:%S')
-  let log = '[ ' . self.name . ' ] [' . time . '] [ Warn ] ' . a:msg
-  if !self.silent
-      echohl WarningMsg
-      echom log
-      echohl None
-  endif
-  call self.write(log)
+    let time = strftime('%H:%M:%S')
+    let log = '[ ' . self.name . ' ] [' . time . '] [ Warn ] ' . a:msg
+    if !self.silent
+        echohl WarningMsg
+        echom log
+        echohl None
+    endif
+    call self.write(log)
 endfunction
 
 function! s:self.info(msg) abort
-  let time = strftime('%H:%M:%S')
-  let log = '[ ' . self.name . ' ] [' . time . '] [ Info ] ' . a:msg
-  if !self.silent
-      echom log
-  endif
-  call self.write(log)
+    let time = strftime('%H:%M:%S')
+    let log = '[ ' . self.name . ' ] [' . time . '] [ Info ] ' . a:msg
+    if !self.silent
+        echom log
+    endif
+    call self.write(log)
 endfunction
 
 function! s:self.set_name(name) abort
@@ -58,3 +65,20 @@ endfunction
 function! s:self.set_file(file) abort
     let self.file = a:file
 endfunction
+
+function! s:self.view(l) abort
+    let info = ''
+    if filereadable(self.file)
+        let logs = readfile(self.file, '')
+        let info .= join(filter(logs,
+                    \ "v:val =~# '\[ " . self.name . ' \] \[\d\d\:\d\d\:\d\d\] \['
+                    \ . s:levels[a:l] . "\]'"), "\n")
+    else
+        let info .= '[ ' . self.name . ' ] : logger file ' . self.file
+                    \ . ' does not exists, only log for current process will be shown!'
+        let info .= join(filter(self.temp,
+                    \ "v:val =~# '\[ SpaceVim \] \[\d\d\:\d\d\:\d\d\] \["
+                    \ . s:levels[a:l] . "\]'"), "\n")
+    endif
+    return info
+endfunction