Merge pull request #9 from devjoe/build-db-async-in-vim8

Build db async in vim8

Author: devjoe

README.md

@@ -62,6 +62,7 @@ This Vim plugin is built on top of the great tool [CodeQuery](https://github.com
 > * Use Vim8's new features to enhance usability.
 > * ~~Do lazy-loading.~~
 > * Test it.
+> * Doc it.
 >  
 > Completeness: 92%  
 > Current Version: v0.8
@@ -100,17 +101,15 @@ echo mkdir mv cut find awk stat git(optional)
 * Use your favorite plugins manager: [pathogen](https://github.com/tpope/vim-pathogen), [Vundle](https://github.com/VundleVim/Vundle.vim), [Plug](https://github.com/junegunn/vim-plug), [NeoBundle](https://github.com/Shougo/neobundle.vim), [Dein](https://github.com/Shougo/dein.vim),  ...
 * Take Plug as an example:  
 ```vim
-" Recommemded => it helps vim-codequery to build DB asynchrously without blocking Vim
-Plug 'tpope/vim-dispatch'  
-   
-" Recommemded => if you don't have an :Ack (or :Ag) liked command => install it !
-Plug 'mileszs/ack.vim'  
-    
-" Highly Recommemded => if you want to use my custom Unite menu
-Plug 'Shougo/unite.vim'  
-   
-" The Must Have One
+" Required
+Plug 'Shougo/unite.vim'
 Plug 'devjoe/vim-codequery'
+    
+" Optional (if your vim version < 8.0)
+Plug 'tpope/vim-dispatch'
+    
+" Optional (if you don't have an :Ack (or :Ag) liked command)
+Plug 'mileszs/ack.vim'
 ```
 
 <br>

autoload/codequery.vim

@@ -130,17 +130,24 @@ function! codequery#make_codequery_db(args) abort
             continue
         endif
 
-        " TODO: Rewrite it when Vim8 is coming
-        " ----------------------------------------------------------------
-        if exists(':Start')
+        if v:version >= 800
+            echom 'Making ...'
+            let mydict = {'db_path': db_path,
+                         \'callback': function("codequery#db#make_db_callback")}
+            let options = {'out_io': 'null',
+                          \'exit_cb': mydict.callback}
+            let s:build_job = job_start(['/bin/sh', '-c', shell_cmd], options)
+            let timer = timer_start(500,
+                                   \{-> execute("call job_status(s:build_job)","")},
+                                   \{'repeat': 60})
+        elseif exists(':Start')
             silent execute 'Start! -title=Make_CodeQuery_DB -wait=error ' . shell_cmd
             redraw!
-            echom 'Making ' . db_path ' => Run :CodeQueryViewDB to Check Status'
+            echom 'Making ... ' . db_path ' => Run :CodeQueryViewDB to Check Status'
         else
             silent execute '!' . shell_cmd
             redraw!
         endif
-        " ----------------------------------------------------------------
     endfor
     call s:restore_cwd()
 endfunction

autoload/codequery/db.vim

@@ -36,6 +36,11 @@ function! codequery#db#find_db_path(filetype) abort
 endfunction
 
 
+function! codequery#db#make_db_callback(job, status) dict
+    echom 'Done!  (' . self.db_path . ')'
+endfunction
+
+
 function! codequery#db#construct_python_db_build_cmd(db_path) abort
     let find_cmd = 'find . -iname "*.py" > python_cscope.files'
     let pycscope_cmd = 'pycscope -f "python_cscope.out" -i python_cscope.files'