bug#55382: 28.1; "fileloop-next-file: Read error: Is a directory" when running project-query-replace-regexp

bug#55382: 28.1; "fileloop-next-file: Read error: Is a directory" when running project-query-replace-regexp

[Alex Broekhof]

[-- Attachment #1: Type: text/plain, Size: 25338 bytes --]

Hitting this error when trying to run project-query-replace-regexp. The
project I'm working under has git submodules, if that could cause any
issues? (Redacted some of the directories and search strings)

```
Debugger entered--Lisp error: (file-error "Read error" "Is a directory"
"/Users/x/x/x/common/x")
  insert-file-contents("/Users/x/x/x/common/x" nil)
  fileloop-next-file(t)
  fileloop-continue()
  project-query-replace-regexp("x::x::x::x" "y::y::y::y")
  funcall-interactively(project-query-replace-regexp "x::x::x::x"
"y::y::y::y")
  call-interactively(project-query-replace-regexp nil nil)
  command-execute(project-query-replace-regexp)
```

Running: GNU Emacs 28.1 (build 1, x86_64-apple-darwin18.7.0, NS
appkit-1671.60 Version 10.14.6 (Build 18G95)) of 2022-04-04

project.el: Version: 0.8.1

Config (using straight):
```
(use-package project
  :bind-keymap ("C-x p" . project-prefix-map))
```

Is `project-files` perhaps being loaded with incorrect file names in
some cases?


In GNU Emacs 28.1 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60
Version 10.14.6 (Build 18G95))
 of 2022-04-04 built on builder10-14.lan
Windowing system distributor 'Apple', version 10.3.2113
System Description:  macOS 12.3.1

Configured using:
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bug#55382: 28.1; "fileloop-next-file: Read error: Is a directory" when running project-query-replace-regexp

[Dmitry Gutov]

On 11.05.2022 23:50, Alex Broekhof wrote:
> Hitting this error when trying to run project-query-replace-regexp. The 
> project I'm working under has git submodules, if that could cause any 
> issues? (Redacted some of the directories and search strings)
> 
> ```
> Debugger entered--Lisp error: (file-error "Read error" "Is a directory" 
> "/Users/x/x/x/common/x")
>    insert-file-contents("/Users/x/x/x/common/x" nil)
>    fileloop-next-file(t)
>    fileloop-continue()
>    project-query-replace-regexp("x::x::x::x" "y::y::y::y")
>    funcall-interactively(project-query-replace-regexp "x::x::x::x" 
> "y::y::y::y")
>    call-interactively(project-query-replace-regexp nil nil)
>    command-execute(project-query-replace-regexp)

Hi! This is arguably a but of the project-vc's project-files 
implementation, but there's no obvious way to fix it without 
compromising performance. And yes, it's related to submodules.

Try this patch please:

diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index 6c50135358..be9532b649 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -1088,7 +1088,9 @@ project-query-replace-regexp
                    (query-replace-read-args "Query replace (regexp)" t t)))
         (list from to))))
    (fileloop-initialize-replace
-   from to (project-files (project-current t)) 'default)
+   from to
+   (cl-delete-if-not #'file-regular-p (project-files (project-current t)))
+   'default)
    (fileloop-continue))

  (defvar compilation-read-command)

bug#55382: 28.1; "fileloop-next-file: Read error: Is a directory" when running project-query-replace-regexp

[Dmitry Gutov]

Version: 29.1

On 15.05.2022 04:57, Dmitry Gutov wrote:
> On 11.05.2022 23:50, Alex Broekhof wrote:
>> Hitting this error when trying to run project-query-replace-regexp. 
>> The project I'm working under has git submodules, if that could cause 
>> any issues? (Redacted some of the directories and search strings)
>>
>> ```
>> Debugger entered--Lisp error: (file-error "Read error" "Is a 
>> directory" "/Users/x/x/x/common/x")
>>    insert-file-contents("/Users/x/x/x/common/x" nil)
>>    fileloop-next-file(t)
>>    fileloop-continue()
>>    project-query-replace-regexp("x::x::x::x" "y::y::y::y")
>>    funcall-interactively(project-query-replace-regexp "x::x::x::x" 
>> "y::y::y::y")
>>    call-interactively(project-query-replace-regexp nil nil)
>>    command-execute(project-query-replace-regexp)
> 
> Hi! This is arguably a but of the project-vc's project-files 
> implementation, but there's no obvious way to fix it without 
> compromising performance. And yes, it's related to submodules.
> 
> Try this patch please:
> 
> diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
> index 6c50135358..be9532b649 100644
> --- a/lisp/progmodes/project.el
> +++ b/lisp/progmodes/project.el
> @@ -1088,7 +1088,9 @@ project-query-replace-regexp
>                     (query-replace-read-args "Query replace (regexp)" t 
> t)))
>          (list from to))))
>     (fileloop-initialize-replace
> -   from to (project-files (project-current t)) 'default)
> +   from to
> +   (cl-delete-if-not #'file-regular-p (project-files (project-current t)))
> +   'default)
>     (fileloop-continue))
> 
>   (defvar compilation-read-command)

Now pushed to master.