feat(searcher): rewrite searcher in lua

autoload/SpaceVim/mapping/space.vim

@@ -514,8 +514,13 @@ function! SpaceVim#mapping#space#init() abort
         \ "call SpaceVim#plugins#flygrep#open({'input' : expand(\"<cword>\"), 'dir' : get(b:, \"rootDir\", getcwd())})",
         \ 'grep-cword-in-project', 1)
   " Searching background
-  call SpaceVim#mapping#space#def('nnoremap', ['s', 'j'],
-        \ 'call SpaceVim#plugins#searcher#find("", SpaceVim#mapping#search#default_tool()[0])', 'background-search-in-project', 1)
+  if has('nvim-0.7.0')
+    call SpaceVim#mapping#space#def('nnoremap', ['s', 'j'],
+          \ "lua require('spacevim.plugin.searcher').find('', require('spacevim.plugin.search').default_tool())", 'background-search-in-project', 1)
+  else
+    call SpaceVim#mapping#space#def('nnoremap', ['s', 'j'],
+          \ 'call SpaceVim#plugins#searcher#find("", SpaceVim#mapping#search#default_tool()[0])', 'background-search-in-project', 1)
+  endif
   call SpaceVim#mapping#space#def('nnoremap', ['s', 'J'],
         \ 'call SpaceVim#plugins#searcher#find(expand("<cword>"),SpaceVim#mapping#search#default_tool()[0])',
         \ 'background-search-cwords-in-project', 1)

lua/spacevim/plugin/searcher.lua

@@ -0,0 +1,59 @@
+local M = {}
+local rst = {}
+
+local function get_search_cmd(exe, expr)
+    if exe == 'grep' then
+        return {'grep', '-inHR', '--exclude-dir', '.git', expr, '.'}
+    elseif exe == 'rg' then
+        return {'rg', '-g!.git', '--hidden', '--no-heading', '--color=never', '--with-filename', '--line-number', expr, '.'}
+    else
+        return {exe, expr}
+    end
+end
+
+local function search_stdout(id, data, event)
+    for _, d in ipairs(data) do
+        local info = vim.fn.split(d, [[\:\d\+\:]])
+        if #info == 2 then
+            local fname = info[1]
+            local text = info[2]
+            local lnum = string.sub(vim.fn.matchstr(d, [[\:\d\+\:]]), 2, -2)
+            table.insert(rst, {
+                filename = vim.fn.fnamemodify(fname, ':p'),
+                lnum = lnum,
+                text = text
+            })
+        end
+    end
+end
+
+local function search_stderr(id, data, event)
+    
+end
+
+local function search_exit(id, data, event)
+    vim.fn.setqflist({}, 'r', {
+        title = ' ' .. #rst .. ' items',
+        items = rst
+    })
+    vim.cmd('botright copen')
+end
+
+function M.find(expr, exe)
+    if expr == '' then
+        expr = vim.fn.input('search expr:')
+        vim.cmd('noautocmd normal! :')
+    end
+    rst = {}
+    local id = vim.fn.jobstart(get_search_cmd(exe, expr), {
+        on_stdout = search_stdout,
+        on_stderr = search_stderr,
+        on_exit = search_exit,
+    })
+    if id > 0 then
+        vim.api.nvim_echo({{'searching ' .. expr, 'Comment'}}, false, {})
+    end
+end
+
+
+return M