Module 'string.buffer' not found

[fl0r3k]

Description

I was using gitsigns for some time now without a problem. Today, when I encountered this error:

Neovim 0.11.0-dev
Lazyvim installation

Neovim version

NVIM v0.11.0-dev

Operating system and version

WSL2 Ubuntu 22.04.5 LTS

Expected behavior

gitsigns loads correctly

Actual behavior

When opening any file that is tracked by git:

Error executing vim.schedule lua callback: ...ns_issue/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:95: The async coroutine failed: ...issue/gitsigns_issue/gitsigns//lua/gitsigns/diff_int.lua:8: module 'string.buffer' not found:
        no field package.preload['string.buffer']
        no file './string/buffer.lua'
        no file '/usr/share/luajit-2.1.0-beta3/string/buffer.lua'
        no file '/usr/local/share/lua/5.1/string/buffer.lua'
        no file '/usr/local/share/lua/5.1/string/buffer/init.lua'
        no file '/usr/share/lua/5.1/string/buffer.lua'
        no file '/usr/share/lua/5.1/string/buffer/init.lua'
        no file './string/buffer.so'
        no file '/usr/local/lib/lua/5.1/string/buffer.so'
        no file '/usr/lib/x86_64-linux-gnu/lua/5.1/string/buffer.so'
        no file '/usr/local/lib/lua/5.1/loadall.so'
        no file './string.so'
        no file '/usr/local/lib/lua/5.1/string.so'
        no file '/usr/lib/x86_64-linux-gnu/lua/5.1/string.so'
        no file '/usr/local/lib/lua/5.1/loadall.so'
stack traceback:
        [C]: in function 'require'
        ...gns_issue/gitsigns_issue/gitsigns//lua/gitsigns/diff.lua:21: in function 'run_diff'
        ..._issue/gitsigns_issue/gitsigns//lua/gitsigns/manager.lua:472: in function 'fn'
        ...issue/gitsigns_issue/gitsigns//lua/gitsigns/debounce.lua:68: in function 'update'
        ...s_issue/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:366: in function 'fn'
        ...issue/gitsigns_issue/gitsigns//lua/gitsigns/debounce.lua:68: in function 'attach_throttled'
        ...s_issue/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:431: in function <...s_issue/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:430>
stack traceback:
        [C]: in function 'error'
        ...ns_issue/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:95: in function 'cb'
        ...ns_issue/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:145: in function <...ns_issue/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:144>

Minimal config

for name, url in pairs{
  gitsigns = 'https://github.com/lewis6991/gitsigns.nvim',
  -- ADD OTHER PLUGINS _NECESSARY_ TO REPRODUCE THE ISSUE
} do
local install_path = vim.fn.fnamemodify('gitsigns_issue/'..name, ':p')
if vim.fn.isdirectory(install_path) == 0 then
vim.fn.system { 'git', 'clone', '--depth=1', url, install_path }
end
vim.opt.runtimepath:append(install_path)
end

require('gitsigns').setup{
  debug_mode = true, -- You must add this to enable debug messages
  -- ADD GITSIGNS CONFIG THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE
}

-- ADD INIT.LUA SETTINGS THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE

Steps to reproduce

1. mkdir gitsigns_issue
2. cd gitsigns_issue
3. git init
4. touch file
5. git add file
6. git commit -m 'initial commit'
7. nvim --clean -u minimal.lua file
8. ...

Gitsigns debug messages

1.84 D dprintf: Deriving GitSignsAdd from Added
1.87 D derive: Deriving GitSignsChange from Changed
1.92 D derive: Deriving GitSignsDelete from Removed
1.95 D derive: Deriving GitSignsChangedelete from GitSignsChange
1.98 D derive: Deriving GitSignsTopdelete from GitSignsDelete
1.99 D derive: Deriving GitSignsUntracked from GitSignsAdd
2.02 D derive: Deriving GitSignsAddNr from GitSignsAdd
2.03 D derive: Deriving GitSignsChangeNr from GitSignsChange
2.08 D derive: Deriving GitSignsDeleteNr from GitSignsDelete
2.09 D derive: Deriving GitSignsChangedeleteNr from GitSignsChangeNr
2.11 D derive: Deriving GitSignsTopdeleteNr from GitSignsDeleteNr
2.13 D derive: Deriving GitSignsUntrackedNr from GitSignsAddNr
2.15 D derive: Deriving GitSignsAddLn from DiffAdd
2.17 D derive: Deriving GitSignsChangeLn from DiffChange
2.19 D derive: Deriving GitSignsChangedeleteLn from GitSignsChangeLn
2.21 D derive: Deriving GitSignsUntrackedLn from GitSignsAddLn
2.22 D derive: Deriving GitSignsAddCul from GitSignsAdd
2.23 D derive: Deriving GitSignsChangeCul from GitSignsChange
2.25 D derive: Deriving GitSignsDeleteCul from GitSignsDelete
2.26 D derive: Deriving GitSignsChangedeleteCul from GitSignsChangeCul
2.27 D derive: Deriving GitSignsTopdeleteCul from GitSignsDeleteCul
2.29 D derive: Deriving GitSignsUntrackedCul from GitSignsAddCul
2.30 D derive: Deriving GitSignsStagedAdd from GitSignsAdd
2.35 D derive: Deriving GitSignsStagedChange from GitSignsChange
2.38 D derive: Deriving GitSignsStagedDelete from GitSignsDelete
2.39 D derive: Deriving GitSignsStagedChangedelete from GitSignsChangedelete
2.41 D derive: Deriving GitSignsStagedTopdelete from GitSignsTopdelete
2.43 D derive: Deriving GitSignsStagedAddNr from GitSignsAddNr
2.45 D derive: Deriving GitSignsStagedChangeNr from GitSignsChangeNr
2.46 D derive: Deriving GitSignsStagedDeleteNr from GitSignsDeleteNr
2.48 D derive: Deriving GitSignsStagedChangedeleteNr from GitSignsChangedeleteNr
2.50 D derive: Deriving GitSignsStagedTopdeleteNr from GitSignsTopdeleteNr
2.52 D derive: Deriving GitSignsStagedAddLn from GitSignsAddLn
2.53 D derive: Deriving GitSignsStagedChangeLn from GitSignsChangeLn
2.55 D derive: Could not derive GitSignsStagedDeleteLn
2.58 D derive: Deriving GitSignsStagedChangedeleteLn from GitSignsChangedeleteLn
2.59 D derive: Could not derive GitSignsStagedTopdeleteLn
2.61 D derive: Deriving GitSignsStagedAddCul from GitSignsAddCul
2.65 D derive: Deriving GitSignsStagedChangeCul from GitSignsChangeCul
2.67 D derive: Deriving GitSignsStagedDeleteCul from GitSignsDeleteCul
2.68 D derive: Deriving GitSignsStagedChangedeleteCul from GitSignsChangedeleteCul
2.70 D derive: Deriving GitSignsStagedTopdeleteCul from GitSignsTopdeleteCul
2.72 D derive: Deriving GitSignsAddPreview from DiffAdd
2.74 D derive: Deriving GitSignsDeletePreview from DiffDelete
2.75 D derive: Deriving GitSignsCurrentLineBlame from NonText
2.77 D derive: Deriving GitSignsAddInline from TermCursor
2.78 D derive: Deriving GitSignsDeleteInline from TermCursor
2.80 D derive: Deriving GitSignsChangeInline from TermCursor
2.84 D derive: Deriving GitSignsAddLnInline from GitSignsAddInline
2.85 D derive: Deriving GitSignsChangeLnInline from GitSignsChangeInline
2.88 D derive: Deriving GitSignsDeleteLnInline from GitSignsDeleteInline
2.90 D derive: Deriving GitSignsDeleteVirtLn from DiffDelete
2.92 D derive: Deriving GitSignsDeleteVirtLnInLine from GitSignsDeleteLnInline
2.94 D derive: Deriving GitSignsVirtLnum from GitSignsDeleteVirtLn
19.23 D attach(1): Attaching (trigger=BufReadPost)
19.39 D run_job: git --version
26.93 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 rev-parse --show-toplevel --absolute-git-dir --abbrev-ref HEAD
29.32 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /home/fl0r3k/gitsigns_issue/.git config user.name
31.25 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /home/fl0r3k/gitsigns_issue/.git -c core.quotepath=off ls-files --stage --others --exclude-standard --eol /home/fl0r3k/gitsigns_issue/file
35.74 D watch_gitdir(1): Watching git dir
35.86 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /home/fl0r3k/gitsigns_issue/.git show e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
14900.98 D cli.run: Running action 'debug_messages' with arguments {}
40419.50 D cli.run: Running action 'debug_messages' with arguments {}
130150.74 D cli.run: Running action 'debug_messages' with arguments {}
147941.87 D cli.run: Running action 'debug_message' with arguments {}
164450.30 D cli.run: Running action 'debug_messages' with arguments {}

Gitsigns cache

{ {
    bufnr = 1,
    compare_text = { "...",
      head = "",
      length = 1
    },
    file = "/home/fl0r3k/gitsigns_issue/file",
    git_obj = {
      encoding = "utf-8",
      file = "/home/fl0r3k/gitsigns_issue/file",
      i_crlf = false,
      mode_bits = "100644",
      object_name = "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
      relpath = "file",
      repo = {
        abbrev_head = "master",
        detached = false,
        gitdir = "/home/fl0r3k/gitsigns_issue/.git",
        toplevel = "/home/fl0r3k/gitsigns_issue",
        username = "fl0r3k"
      },
      w_crlf = false
    },
    gitdir_watcher = <userdata 1>,
    staged_diffs = { "...",
      length = 0
    },
    update_lock = true
  } }

[robertmonka]

Same issue on me.

[fl0r3k]

Seems like the recent commit added this require statement:

233bcbf @lewis6991

I switched to 0.9.0 release and it works.
Lazy example:

{
	"lewis6991/gitsigns.nvim",
	tag = "v0.9.0",
	otps = {}
}

[lewis6991]

This happens on Neovim builds which are built with an old version of LuaJIT.