refactor(git): make the git module self-contained under git.util

lua/git/sidebar.lua

@@ -1,6 +1,5 @@
 local diff = require("git.diff")
 local git = require("git")
-local log = require("log")
 local repo = require("git.repo")
 
 local M = {}
@@ -263,7 +262,7 @@ local function enrich_with_log(worktree, branch, groups)
                 end
             end
         else
-            log.error(
+            util.error(
                 "git log %s failed: %s",
                 p.f.range,
                 vim.trim(result.stderr or "")
@@ -298,7 +297,7 @@ local function fetch_status(worktree, prefetched_stdout, callback)
         { cwd = worktree, text = true },
         vim.schedule_wrap(function(obj)
             if obj.code ~= 0 then
-                log.error("git status failed: %s", vim.trim(obj.stderr or ""))
+                util.error("git status failed: %s", vim.trim(obj.stderr or ""))
                 local branch = { ahead = 0, behind = 0 }
                 local groups = {
                     Untracked = {},
@@ -761,7 +760,7 @@ local function action_stage()
         { cwd = s.worktree },
         vim.schedule_wrap(function(obj)
             if obj.code ~= 0 then
-                log.error("git add failed: %s", vim.trim(obj.stderr or ""))
+                util.error("git add failed: %s", vim.trim(obj.stderr or ""))
             end
         end)
     )
@@ -786,7 +785,7 @@ local function action_unstage()
         { cwd = s.worktree },
         vim.schedule_wrap(function(obj)
             if obj.code ~= 0 then
-                log.error(
+                util.error(
                     "git restore --staged failed: %s",
                     vim.trim(obj.stderr or "")
                 )
@@ -802,7 +801,7 @@ local function action_discard()
     end
     ---@cast entry ow.Git.FileEntry
     if entry.section == "Staged" then
-        log.warning("file has staged changes; unstage first with 'u'")
+        util.warning("file has staged changes; unstage first with 'u'")
         return
     end
 
@@ -821,7 +820,7 @@ local function action_discard()
             local target = vim.fs.joinpath(s.worktree, entry.path)
             local rc = vim.fn.delete(target, is_dir and "rf" or "")
             if rc ~= 0 then
-                log.error("failed to delete %s", entry.path)
+                util.error("failed to delete %s", entry.path)
             end
             refresh(vim.api.nvim_get_current_buf())
         end
@@ -833,7 +832,7 @@ local function action_discard()
                 { cwd = s.worktree },
                 vim.schedule_wrap(function(obj)
                     if obj.code ~= 0 then
-                        log.error(
+                        util.error(
                             "git checkout failed: %s",
                             vim.trim(obj.stderr or "")
                         )
@@ -950,7 +949,7 @@ function M.toggle()
     end
     local _, worktree = repo.resolve_cwd()
     if not worktree then
-        log.warning("not in a git repository")
+        util.warning("not in a git repository")
         return
     end
     open(worktree)