GNU bug report logs - #27789
26.0.50; grep-apply-setting: wrong-type-argument consp nil

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Kaushal Modi <kaushal.modi <at> gmail.com>
Subject: bug#27789: closed (Re: bug#27789: 26.0.50; grep-apply-setting:
 wrong-type-argument consp nil)
Date: Sun, 23 Jul 2017 02:53:02 +0000

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Your bug report

#27789: 26.0.50; grep-apply-setting: wrong-type-argument consp nil

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 27789 <at> debbugs.gnu.org.

-- 
27789: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=27789
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Kaushal Modi <kaushal.modi <at> gmail.com>
To: npostavs <at> users.sourceforge.net, 27789-done <at> debbugs.gnu.org
Subject: Re: bug#27789: 26.0.50;
 grep-apply-setting: wrong-type-argument consp nil
Date: Sun, 23 Jul 2017 02:52:10 +0000

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On Sat, Jul 22, 2017 at 7:58 AM <npostavs <at> users.sourceforge.net> wrote:

>
> I'm not able to reproduce this, can you show a recipe starting from
> 'emacs -Q'?
>

I rebuilt emacs from latest master today.

Now I am also now unable to recreate this issue when using the same command
(ag-project-regexp) in the same project (Org repo).

Odd.. the backtrace that I posted was real though :)

I'll close the issue for now.
-- 

Kaushal Modi

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From: Kaushal Modi <kaushal.modi <at> gmail.com>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>,
 Noam Postavsky <npostavs <at> gmail.com>
Subject: 26.0.50; grep-apply-setting: wrong-type-argument consp nil
Date: Sat, 22 Jul 2017 04:03:59 +0000

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Hello,

I believe I started seeing this error after this commit[1].

I get the error when attempting to use ag search from ag.el[2].

=====
Debugger entered--Lisp error: (wrong-type-argument consp nil)
  grep-apply-setting(grep-use-null-filename-separator t)
  custom-initialize-reset(grep-use-null-filename-separator (funcall
(function #f(compiled-function () #<bytecode>))))
  custom-declare-variable(grep-use-null-filename-separator (funcall
(function #f(compiled-function () #<bytecode>))) "If non-nil, use `grep's
`--null' option.\nThis is done to disambiguate file names in `grep's
output." :type (choice (const :tag "Do Not Use `--null'" nil) (const :tag
"Use `--null'" t) (other :tag "Not Set" auto-detect)) :set
grep-apply-setting :group grep)

byte-code("\300\301\302\303\304DD\305\306\307\310\311\312\313&\011\210\300\314\302\303\315DD\316\306\317\320\321\310\311\312\313&\013\210\300\322\302\303\323DD\324\306\325\310\311\312\313&\011\210\300\326\302\303\327DD\330\306\331\320\321\312\313&\011\210\300\332\302\303\333DD\334\306\335\320\321\310\311\312\313&\013\210\300\336\302\303\337DD\340\306\341\320\321\312\313&\011\210\300\342\302\303\343DD\344\306\345\320\321\312\313&\011\210\300\346\302\303\347DD\350\306\351\320\321\312\313&\011\210\300\352\302\303\353DD\354\306\355\320\321\310\311\312\313&\013\210\300\356\302\303\357DD\360\306\361\312\313&\007\210\300\362\302\303\363DD\364\306\365\312\313&\007\210\300\366\302\303\367DD\370\306\371\312\313&\007\210\300\372\302\303\373DD\374\310\375\306\376\312\313&\011\210\300\377\302\303\201@\0\
DD\201A\0\306\201B\0\310\311\312\313&\011\210\300\201C\0\302\303\201D\0\
DD\201E\0\306\201F\0\312\313&\007\207" [custom-declare-variable
grep-window-height funcall function #f(compiled-function () #<bytecode>)
"Number of lines in a grep window.  If nil, use
`compilation-window-height'." :type (choice (const :tag "Default" nil)
integer) :version "22.1" :group grep grep-highlight-matches
#f(compiled-function () #<bytecode>) "Use special markers to highlight grep
matches.\n\nSome grep programs are able to surround matches with
special\nmarkers in grep output.  Such markers can be used to
highlight\nmatches in grep mode.  This requires `font-lock-mode' to be
active\nin grep buffers, so if you have globally disabled
font-lock-mode,\nyou will not get highlighting.\n\nThis option sets the
environment variable GREP_COLORS to specify\nmarkers for highlighting and
adds the --color option in front of\nany explicit grep options before
starting the grep.\n\nWhen this option is `auto', grep uses `--color' to
highlight\nmatches only when it outputs to a terminal (when `grep' is the
last\ncommand in the pipe), thus avoiding the use of any
potentially-harmful\nescape sequences when standard output goes to a file
or pipe.\n\nTo make grep highlight matches even into a pipe, you need the
option\n`always' that forces grep to use `--color=always' to
unconditionally\noutput escape sequences.\n\nIn interactive usage, the
actual value of this variable is set up\nby `grep-compute-defaults' when
the default value is `auto-detect'.\nTo change the default value, use
Customize or call the function\n`grep-apply-setting'." (choice (const :tag
"Do not highlight matches with grep markers" nil) (const :tag "Highlight
matches with grep markers" t) (const :tag "Use --color=always" always)
(const :tag "Use --color" auto) (other :tag "Not Set" auto-detect)) :set
grep-apply-setting grep-scroll-output #f(compiled-function () #<bytecode>)
"Non-nil to scroll the *grep* buffer window as output appears.\n\nSetting
it causes the grep commands to put point at the end of their\noutput window
so that the end of the output is always visible rather\nthan the
beginning." boolean grep-command #f(compiled-function () #<bytecode>) "The
default grep command for \\[grep].\nIf the grep program used supports an
option to always include file names\nin its output (such as the `-H' option
to GNU grep), it's a good idea to\ninclude it when specifying
`grep-command'.\n\nIn interactive usage, the actual value of this variable
is set up\nby `grep-compute-defaults'; to change the default value,
use\nCustomize or call the function `grep-apply-setting'." (choice string
(const :tag "Not Set" nil)) grep-template #f(compiled-function ()
#<bytecode>) "The default command to run for \\[lgrep].\nThe following
place holders should be present in the string:\n <C> - place to put the
options like -i and --color.\n <F> - file names and wildcards to search.\n
<X> - file names and wildcards to exclude.\n <R> - the regular expression
searched for.\n <N> - place to insert null-device.\n\nIn interactive usage,
the actual value of this variable is set up\nby `grep-compute-defaults'; to
change the default value, use\nCustomize or call the function
`grep-apply-setting'." (choice string (const :tag "Not Set" nil))
grep-use-null-device #f(compiled-function () #<bytecode>) "If t, append the
value of `null-device' to `grep' commands.\nThis is done to ensure that the
output of grep includes the filename of\nany match in the case where only a
single file is searched, and is not\nnecessary if the grep program used
supports the `-H' option.\n\nIn interactive usage, the actual value of this
variable is set up\nby `grep-compute-defaults'; to change the default
value, use\nCustomize or call the function `grep-apply-setting'." (choice
(const :tag "Do Not Append Null Device" nil) (const :tag "Append Null
Device" t) (other :tag "Not Set" auto-detect))
grep-use-null-filename-separator #f(compiled-function () #<bytecode>) "If
non-nil, use `grep's `--null' option.\nThis is done to disambiguate file
names in `grep's output." (choice (const :tag "Do Not Use `--null'" nil)
(const :tag "Use `--null'" t) (other :tag "Not Set" auto-detect))
grep-find-command #f(compiled-function () #<bytecode>) "The default find
command for \\[grep-find].\nIn interactive usage, the actual value of this
variable is set up\nby `grep-compute-defaults'; to change the default
value, use\nCustomize or call the function `grep-apply-setting'." (choice
string (const :tag "Not Set" nil)) grep-find-template #f(compiled-function
() #<bytecode>) "The default command to run for \\[rgrep].\nThe following
place holders should be present in the string:\n <D> - base directory for
find\n <X> - find options to restrict or expand the directory list\n <F> -
find options to limit the files matched\n <C> - place to put the grep
options like -i and --color\n <R> - the regular expression searched
for.\nIn interactive usage, the actual value of this variable is set up\nby
`grep-compute-defaults'; to change the default value, use\nCustomize or
call the function `grep-apply-setting'." (choice string (const :tag "Not
Set" nil)) grep-files-aliases #f(compiled-function () #<bytecode>) "Alist
of aliases for the FILES argument to `lgrep' and `rgrep'." alist
grep-find-ignored-directories #f(compiled-function () #<bytecode>) "List of
names of sub-directories which `rgrep' shall not recurse into.\nIf an
element is a cons cell, the car is called on the search directory\nto
determine whether cdr should not be recursed into." (choice (repeat :tag
"Ignored directories" string) (const :tag "No ignored directories" nil))
grep-find-ignored-files #f(compiled-function () #<bytecode>) "List of file
names which `rgrep' and `lgrep' shall exclude.\nIf an element is a cons
cell, the car is called on the search directory\nto determine whether cdr
should not be excluded." (choice (repeat :tag "Ignored file" string) (const
:tag "No ignored files" nil)) grep-save-buffers #f(compiled-function ()
#<bytecode>) "If non-nil, save buffers before running the grep
commands.\nIf `ask', ask before saving.  If a function, call it with no
arguments\nwith each buffer current, as a predicate to determine whether
that\nbuffer should be saved or not.  E.g., one can set this to\n  (lambda
()\n    (string-prefix-p my-grep-root (file-truename
(buffer-file-name))))\nto limit saving to files located under
`my-grep-root'." "26.1" (choice (const :tag "Ask before saving" ask) (const
:tag "Don't save buffers" nil) function (other :tag "Save all buffers" t))
grep-error-screen-columns #f(compiled-function () #<bytecode>) "If non-nil,
column numbers in grep hits are screen columns.\nSee
`compilation-error-screen-columns'" (choice (const :tag "Default" nil)
integer) grep-setup-hook #f(compiled-function () #<bytecode>) "List of hook
functions run by `grep-process-setup' (see `run-hooks')." hook] 12)
  #<subr require>(grep nil nil)
  ad-Advice-require(#<subr require> grep)
  apply(ad-Advice-require #<subr require> grep)
  require(grep)

byte-code("\300\301!\210\302\303\304\305\306\307\310\301&\007\210\311\312\304\313\310\303\314\315&\007\210\311\316\317\320\310\303\314\321&\007\210\311\322\304\323\310\303\314\315&\007\207"
[require grep custom-declare-group wgrep nil "Customize wgrep" :prefix
"wgrep-" :group custom-declare-variable wgrep-change-readonly-file "Non-nil
means to enable change read-only files." :type boolean wgrep-enable-key
"\003\020" "This variable will be obsoleted in the future release.\nKey to
enable `wgrep-mode'." string wgrep-auto-save-buffer "Non-nil means do
`save-buffer' automatically while `wgrep-finish-edit'."] 8)
  #<subr require>(wgrep nil nil)
  ad-Advice-require(#<subr require> wgrep)
  apply(ad-Advice-require #<subr require> wgrep)
  require(wgrep)
  byte-code("\300\301!\210\300\302!\207" [require wgrep cl-lib] 2)
  wgrep-ag-setup()
  run-hooks(change-major-mode-after-body-hook compilation-mode-hook
ag-mode-hook)
  apply(run-hooks (change-major-mode-after-body-hook compilation-mode-hook
ag-mode-hook))
  run-mode-hooks(ag-mode-hook)
  ag-mode()
  compilation-start("ag --nogroup --line-number --column --color
--color-match 30\\;43 --color-path 1\\;32 --nogroup --skip-vcs-ignores
--numbers --smart-case --follow --ignore \\#\\*\\# --stats --
preserve-breaks ." ag-mode (lambda (mode-name) "*ag search
regexp:preserve-breaks
dir:~/stow/pub_dotfiles/emacs/dot-emacs.d/elisp/org-mode/*"))
  ag/search("preserve-breaks"
"~/stow/pub_dotfiles/emacs/dot-emacs.d/elisp/org-mode/" :regexp t)
  ag-project-regexp("preserve-breaks")
  funcall-interactively(ag-project-regexp "preserve-breaks")
  call-interactively(ag-project-regexp nil nil)
  command-execute(ag-project-regexp)
=====

PS: @Noam: Thanks for making the elisp backtrace copyable :)

[1]:
http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=644cdd1aa0a10dbfffa3b9b4c7a97f8cddded0b8
[2]: https://github.com/Wilfred/ag.el
-- 

Kaushal Modi

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