refactor(git): extract replace_buf_lines helper

lua/git/cmd.lua

@@ -100,16 +100,7 @@ local function run_in_split(r, args, conf)
                 end
             end
             vim.bo[buf].filetype = conf.ft
-            vim.bo[buf].modifiable = true
+            util.replace_buf_lines(buf, util.split_lines(stdout))
-            vim.api.nvim_buf_set_lines(
-                buf,
-                0,
-                -1,
-                false,
-                util.split_lines(stdout)
-            )
-            vim.bo[buf].modifiable = false
-            vim.bo[buf].modified = false
         end,
     })
 end

lua/git/object.lua

@@ -199,11 +199,7 @@ local function populate(buf, r, rev, state, rev_sha)
         end
     end
 
-    local was_modifiable = vim.bo[buf].modifiable
+    util.replace_buf_lines(buf, util.split_lines(stdout))
-    vim.bo[buf].modifiable = true
-    vim.api.nvim_buf_set_lines(buf, 0, -1, false, util.split_lines(stdout))
-    vim.bo[buf].modifiable = was_modifiable
-    vim.bo[buf].modified = false
     state.sha = rev_sha
     return true
 end

lua/git/status_view.lua

@@ -132,9 +132,7 @@ local function render(bufnr, status)
         end
     end
 
-    vim.bo[bufnr].modifiable = true
+    util.replace_buf_lines(bufnr, lines)
-    vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
-    vim.bo[bufnr].modifiable = false
     vim.api.nvim_buf_clear_namespace(bufnr, ns, 0, -1)
     for _, m in ipairs(marks) do
         vim.api.nvim_buf_set_extmark(bufnr, ns, m.row, m.col, {

lua/git/util.lua

@@ -80,6 +80,16 @@ function M.debug(fmt, ...)
     vim.notify(fmt:format(...), vim.log.levels.DEBUG)
 end
 
+---@param buf integer
+---@param lines string[]
+function M.replace_buf_lines(buf, lines)
+    local was_modifiable = vim.bo[buf].modifiable
+    vim.bo[buf].modifiable = true
+    vim.api.nvim_buf_set_lines(buf, 0, -1, false, lines)
+    vim.bo[buf].modifiable = was_modifiable
+    vim.bo[buf].modified = false
+end
+
 ---@param content string
 ---@return string[]
 function M.split_lines(content)