ctags_recursive.options permissions

[folofjc]

Describe the bug
Clean install. When opening any file, ctags throws an error

Steps to reproduce

1. Install vim-gutentags by cloning
2. Open an file
3. Get error

Share your setup

• What OS and version of Vim are you using?
  • Ubuntu 22.04 LTS

vim --version
VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Apr 25 2022 10:58:14)
Included patches: 1-4822
Compiled by pgesting@PGGC-22
Huge version with GTK2 GUI.  Features included (+) or not (-):
+acl               +file_in_path      +mouse_urxvt       -tag_any_white
+arabic            +find_in_path      +mouse_xterm       -tcl
+autocmd           +float             +multi_byte        +termguicolors
+autochdir         +folding           +multi_lang        +terminal
-autoservername    -footer            -mzscheme          +terminfo
+balloon_eval      +fork()            +netbeans_intg     +termresponse
+balloon_eval_term +gettext           +num64             +textobjects
+browse            -hangul_input      +packages          +textprop
++builtin_terms    +iconv             +path_extra        +timers
+byte_offset       +insert_expand     +perl              +title
+channel           +ipv6              +persistent_undo   +toolbar
+cindent           +job               +popupwin          +user_commands
+clientserver      +jumplist          +postscript        +vartabs
+clipboard         +keymap            +printer           +vertsplit
+cmdline_compl     +lambda            +profile           +vim9script
+cmdline_hist      +langmap           -python            +viminfo
+cmdline_info      +libcall           +python3           +virtualedit
+comments          +linebreak         +quickfix          +visual
+conceal           +lispindent        +reltime           +visualextra
+cryptv            +listcmds          +rightleft         +vreplace
+cscope            +localmap          +ruby              +wildignore
+cursorbind        +lua               +scrollbind        +wildmenu
+cursorshape       +menu              +signs             +windows
+dialog_con_gui    +mksession         +smartindent       +writebackup
+diff              +modify_fname      -sodium            +X11
+digraphs          +mouse             -sound             -xfontset
+dnd               +mouseshape        +spell             +xim
-ebcdic            +mouse_dec         +startuptime       +xpm
+emacs_tags        -mouse_gpm         +statusline        +xsmp_interact
+eval              -mouse_jsbterm     -sun_workshop      +xterm_clipboard
+ex_extra          +mouse_netterm     +syntax            -xterm_save
+extra_search      +mouse_sgr         +tag_binary        
-farsi             -mouse_sysmouse    -tag_old_static    
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
  system gvimrc file: "$VIM/gvimrc"
    user gvimrc file: "$HOME/.gvimrc"
2nd user gvimrc file: "~/.vim/gvimrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
    system menu file: "$VIMRUNTIME/menu.vim"
  fall-back for $VIM: "/usr/local/share/vim"
 f-b for $VIMRUNTIME: "/usr/local/share/vim/vim82"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -pthread -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -g -O2 -D_REENTRANT -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 
Linking: gcc -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fstack-protector-strong -rdynamic -Wl,-export-dynamic -Wl,-E -L/usr/local/lib -Wl,--as-needed -o vim -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lharfbuzz -lfontconfig -lfreetype -lSM -lICE -lXpm -lXt -lX11 -lXdmcp -lSM -lICE -lm -ltinfo -lselinux -L/usr/lib -llua5.2 -Wl,-E -fstack-protector-strong -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu/perl/5.34/CORE -lperl -ldl -lm -lpthread -lcrypt -L/home/pgesting/.pyenv/versions/3.10.4/lib/python3.10/config-3.10-x86_64-linux-gnu -lpython3.10 -lcrypt -ldl -lm -lm -lruby-3.0 -lm -L/usr/lib 

• What version of ctags, gtags, or whatever do you have installed?

    ctags --version
Universal Ctags 5.9.0(p5.9.20220320.0), Copyright (C) 2015-2022 Universal Ctags Team
Universal Ctags is derived from Exuberant Ctags.
Exuberant Ctags 5.8, Copyright (C) 1996-2009 Darren Hiebert
  Compiled: Mar 22 2022, 17:22:27
  URL: https://ctags.io/
  Optional compiled features: +wildcards, +regex, +gnulib_regex, +iconv, +option-directory, +xpath, +json, +interactive, +yaml, +packcc, +optscript

• Are you using g:gutentags_cache_dir? Not that I know of

Post the logs

• Run :let g:gutentags_trace = 1.
• Reproduce the bug.
• Run :messages and show the messages that Gutentags posted.

gutentags: Wildignore options file is up to date.
gutentags: Running: ['/home/pgesting/.vim/bundle/vim-gutentags/plat/unix/update_tags.sh', '-e', 'ctags', '-t', 'tags', '-p', '
.', '-o', '/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options', '-l', 'tags.log']
gutentags: In:      /home/pgesting/Documents/git/SBTS
gutentags: [job stdout]: 'Locking tags file...'
gutentags: [job stdout]: 'Running ctags on whole project'
gutentags: [job stdout]: 'ctags -f "tags.temp" "--options=/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options
"  "."'
gutentags: [job stderr]: 'ctags: cannot open option file "/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options
" : Permission denied'
gutentags: Finished ctags job.
gutentags: ctags job failed, returned: 1

• Look for the tags.log file that Gutentags' script left behind, and post its contents.

Additional context
if I try to run the command myself I get the same error from the command line:

>ctags -f "tags.temp" "--options=/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options"
ctags: cannot open option file "/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options" : Permission denied
>ls -la /home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options 
-rw-rw-r-- 1 pgesting pgesting 15 Apr 25 13:02 /home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options

As you can see, the permissions on this file are 664 so anything should be able to read it

[ludovicchabant]

Looks somehow the process running Vim doesn't have permissions to read one of the files inside the gutentags plugin (/home/pgesting/.vim/bundle/vim-gutentags/res/ctags_recursive.options), which is weird. Can you check the permissions?

Also, is that newline after the path in the logs, or is that caused by copy/pasting here in Github? I can't see how the code could ever add a newline there.

[folofjc]

Hi @ludovicchabant The last thing I put in the "Additional Context" shows the permissions on that file, because I knew that would be important. As you can see, the persmissions are 664.

I am not sure which newline you are talking about, but it is probably a copy paste issue.

[ludovicchabant]

Right, I missed it, thanks. I have no idea why it can't read a 664 file... are you running that command as the pgesting user, or as a different user? Does setting the file to 666 fix anything?

[folofjc]

So, I am opening vim as pgesting, and when I ran the commands myself in the commandline I am running as pgesting. Is there anyway that when the guten-tags runs the command it would be as a different user? I don't know how the plugins work that well.

[mpkopec]

Maybe not relevant, but I get the same error, when using NeoVim as an appimage, which is sandboxed and I suspect the sandboxing to be an issue. I will try a deb install and post my findings here.

[mpkopec]

Ok, it seems that I resolved this issue on my machine. I have done the following:

1. removed the NeoVim installed as an AppImage and reinstalled it as per this instruction (have not helped);
2. removed universal-ctags installed as a snap and installed it from source.

In the end the update_tags script succeeded and I suspect the snap's sandboxing mechanism of messing with reading external files from the general filesystem, but since I did touch 2 things I cannot be 100% certain which of the steps helped.