feat(git): add :Git grep command

bundle/git.vim/autoload/git.vim

@@ -80,7 +80,7 @@ function! git#complete(ArgLead, CmdLine, CursorPos) abort
         return join(['add', 'push', 'status', 'commit', 'diff',
                     \ 'merge', 'rebase', 'branch', 'checkout',
                     \ 'fetch', 'reset', 'log', 'config', 'reflog',
-                    \ 'blame', 'pull', 'stash', 'cherry-pick', 'rm', 'mv', 'remote', 'clean', 'shortlog', 'tag'
+                    \ 'blame', 'pull', 'stash', 'cherry-pick', 'rm', 'mv', 'remote', 'clean', 'shortlog', 'tag', 'grep'
                     \ ],
                     \ "\n")
     elseif str =~# '^Git\s\+add\s\+.*$'

bundle/git.vim/lua/git/command/grep.lua

@@ -0,0 +1,91 @@
+--=============================================================================
+-- grep.lua --- git grep to quickfix
+-- Copyright (c) 2016-2022 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local M = {}
+
+local job = require('spacevim.api.job')
+local nt = require('spacevim.api.notify')
+local log = require('git.log')
+local grep_stdout = {}
+local grep_stderr = {}
+local jobid = -1
+
+local function on_exit(id, code, single)
+  log.debug('git-rm exit code:' .. code .. ' single:' .. single)
+  if id ~= jobid then
+    return
+  end
+  if code == 0 and single == 0 then
+    local rst = {}
+    for _, d in ipairs(grep_stdout) 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
+    if #rst > 0 then
+      vim.fn.setqflist({}, 'r', {
+        title = 'Git grep results: ' .. #rst .. ' items',
+        items = rst,
+      })
+      vim.cmd('botright copen')
+    else
+      nt.notify(':Git grep no results!')
+    end
+  else
+    if #grep_stderr == 0 then
+      nt.notify(':Git git no results', 'warningmsg')
+    else
+      nt.notify(grep_stderr[1], 'warningmsg')
+      nt.notify('for more info, checkout SPC h L')
+      for _, v in ipairs(grep_stderr) do
+        log.debug(v)
+      end
+    end
+  end
+end
+
+local function on_stdout(id, data)
+  if id ~= jobid then
+    return
+  end
+  for _, v in ipairs(data) do
+    table.insert(grep_stdout, v)
+  end
+end
+local function on_stderr(id, data)
+  if id ~= jobid then
+    return
+  end
+  for _, v in ipairs(data) do
+    table.insert(grep_stderr, v)
+  end
+end
+function M.run(argv)
+  local cmd = { 'git', 'grep', '-n' }
+  for _, v in ipairs(argv) do
+    table.insert(cmd, v)
+  end
+  log.debug('git-grep cmd:' .. vim.inspect(cmd))
+  grep_stdout = {}
+  grep_stderr = {}
+  jobid = job.start(cmd, {
+    on_exit = on_exit,
+    on_stdout = on_stdout,
+    on_stderr = on_stderr,
+  })
+end
+
+return M

bundle/git.vim/lua/git/init.lua

@@ -25,6 +25,7 @@ local cmds = {
   'reflog',
   'shortlog',
   'status',
+  'grep',
   'tag',
 }
 local supported_commands = {}