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Subject: bug#71762: `(project-files (project-current))` with `project-vc-extra-root-markers` doesn't work on Windows.
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Reproduces steps:

I have the following directory

```

\---myproject
    |  .project
    |
    +---subproject1
    |   \---.git
    |   |   Makefile
    |
    \---subproject2
        \---.git
        |   Makefile

```

1. Open Emacs -Q

2. M-x eval-expression `(setq debug-on-error t)`

3. M-x eval-expression `(setq project-vc-extra-root-markers '(".project"))`

4. Open the .project file in Emacs

5. M-x eval-expression `(project-current)`

    Result: `(vc nil "e:/work/myproject/")` OK

6. M-x eval-expression `(project-files (project-current))`

    Result: Debugger entered--Lisp error: (error "File listing failed:
FIND: Parameter format not co...")
  error("File listing failed: %s" "FIND: Parameter format not correct\n")

The root cause is that `project--files-in-directory` in project.el is using
`find-program` ("find") which does not exist on Windows.

Is it possible to use more portable code? For example,
`directory-files-recursively`? Otherwise NTEmacs users will have to install
CYGWIN or MSYS2.

P.s. I have used Projectile before, which allows you to place a .projectile
file in `myproject` and everything was OK on Windows. Also if I focus on a
git folder e.g. `subproject1` in the example above, the `project-files`
also works well.

Emacs 29.3 on Windows 10.

Thanks.

Best Regards,
Siyuan Chen

--000000000000847591061ba99199
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<div dir=3D"ltr"><div>Reproduces steps:<br></div><div><br></div><div>I have=
 the following directory</div><div><br></div><div>```</div><div>
<pre>\---myproject
    |  .project
    | =20
    +---subproject1
    |   \---.git
    |   |   Makefile
    | =20
    \---subproject2
        \---.git
        |   Makefile</pre>

</div><div>```</div><div><br></div><div>1. Open Emacs -Q</div><div><br></di=
v><div>2. M-x eval-expression `(setq debug-on-error t)`</div><div><br></div=
><div>
3. M-x eval-expression `(setq project-vc-extra-root-markers &#39;(&quot;.pr=
oject&quot;))` <br></div><div><br></div><div>4. Open the .project file in E=
macs<br></div><div><br></div><div>5.=20
M-x eval-expression `(project-current)`=C2=A0</div><div><br></div><div>=C2=
=A0=C2=A0=C2=A0 Result: `(vc nil &quot;e:/work/myproject/&quot;)` OK</div><=
div><br></div><div>6. M-x eval-expression `(project-files (project-current)=
)`</div><div><br></div><div>=C2=A0=C2=A0=C2=A0 Result: Debugger entered--Li=
sp error: (error &quot;File listing failed: FIND: Parameter format not co..=
.&quot;)<br>=C2=A0 error(&quot;File listing failed: %s&quot; &quot;FIND: Pa=
rameter format not correct\n&quot;)</div><div><br></div><div>The root cause=
 is that `project--files-in-directory` in project.el is using `find-program=
` (&quot;find&quot;) which<span class=3D"gmail-HwtZe" lang=3D"en"><span cla=
ss=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=3D"gmail-ryNqvb"> =
does not exist on Windows</span></span></span>.=C2=A0</div><div><br></div><=
div>Is it possible to use more portable code? For example, `directory-files=
-recursively`? Otherwise NTEmacs users will <span class=3D"gmail-HwtZe" lan=
g=3D"en"><span class=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=
=3D"gmail-ryNqvb">have to install CYGWIN or MSYS2.</span></span></span>

</div><div><br></div><div>P.s.
I have used Projectile before, which allows you to place a .projectile file=
 in `myproject` and everything was OK

on Windows. Also if I focus on a git folder e.g. `subproject1` in the examp=
le above, the=20
`project-files` also works well.<br></div><div><br></div><div>Emacs 29.3 on=
 Windows 10.</div><div><br></div><div>Thanks.</div><div><br></div><div>Best=
 Regards,</div><div>Siyuan Chen<br>

</div><div><br></div></div>

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Siyuan Chen <chansey97@HIDDEN>
Subject: bug#71762: Acknowledgement (`(project-files (project-current))`
 with `project-vc-extra-root-markers` doesn't work on Windows.)
Message-ID: <handler.71762.B.171926497526785.ack <at> debbugs.gnu.org>
References: <CAHWTsY=tOjO3B3RLMxZu9OG7vVo4u3QTxj7CYV51tw-V+Hahrw@HIDDEN>
X-Gnu-PR-Message: ack 71762
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Date: Mon, 24 Jun 2024 21:37:02 +0000

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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#71762: `(project-files (project-current))` with `project-vc-extra-root-markers` doesn't work on Windows.
Resent-From: Siyuan Chen <chansey97@HIDDEN>
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From: Siyuan Chen <chansey97@HIDDEN>
Date: Tue, 25 Jun 2024 08:04:48 +0800
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Anyway, setting `(setq find-program (purecopy
"C:/msys64/usr/bin/find.exe"))` makes the above example work at the moment.

Perhaps all NTEmacs users should set the 3 options: grep-program,
find-program, xargs-program. My only concern now is the potential issue
with backslashes and encoding. Hence, I have to keep Projectile as the
fallback solution because it has a native implementation.

Best Regards,
Siyuan Chen

On Tue, Jun 25, 2024 at 5:37=E2=80=AFAM Siyuan Chen <chansey97@HIDDEN> w=
rote:

> Reproduces steps:
>
> I have the following directory
>
> ```
>
> \---myproject
>     |  .project
>     |
>     +---subproject1
>     |   \---.git
>     |   |   Makefile
>     |
>     \---subproject2
>         \---.git
>         |   Makefile
>
> ```
>
> 1. Open Emacs -Q
>
> 2. M-x eval-expression `(setq debug-on-error t)`
>
> 3. M-x eval-expression `(setq project-vc-extra-root-markers
> '(".project"))`
>
> 4. Open the .project file in Emacs
>
> 5. M-x eval-expression `(project-current)`
>
>     Result: `(vc nil "e:/work/myproject/")` OK
>
> 6. M-x eval-expression `(project-files (project-current))`
>
>     Result: Debugger entered--Lisp error: (error "File listing failed:
> FIND: Parameter format not co...")
>   error("File listing failed: %s" "FIND: Parameter format not correct\n")
>
> The root cause is that `project--files-in-directory` in project.el is
> using `find-program` ("find") which does not exist on Windows.
>
> Is it possible to use more portable code? For example,
> `directory-files-recursively`? Otherwise NTEmacs users will have to
> install CYGWIN or MSYS2.
>
> P.s. I have used Projectile before, which allows you to place a
> .projectile file in `myproject` and everything was OK on Windows. Also if=
 I
> focus on a git folder e.g. `subproject1` in the example above, the
> `project-files` also works well.
>
> Emacs 29.3 on Windows 10.
>
> Thanks.
>
> Best Regards,
> Siyuan Chen
>
>

--00000000000014418b061baba615
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Anyway, setting `(setq find-program (purecopy &quot;C:/msy=
s64/usr/bin/find.exe&quot;))` makes the above example work at the moment.=
=C2=A0<div><br></div><div>Perhaps all NTEmacs users should set the 3 option=
s: grep-program, find-program, xargs-program. My only concern now is the po=
tential issue with backslashes and encoding. Hence, I have to keep Projecti=
le as the fallback solution because it has a native implementation.<br></di=
v><div><br></div><div dir=3D"ltr"><div>
<div>Best Regards,</div><div>Siyuan Chen</div>

</div><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Tue, Jun 25, 2024 at 5:37=E2=80=AFAM Siyuan Chen &l=
t;<a href=3D"mailto:chansey97@HIDDEN">chansey97@HIDDEN</a>&gt; wrote:=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr=
"><div>Reproduces steps:<br></div><div><br></div><div>I have the following =
directory</div><div><br></div><div>```</div><div>
<pre>\---myproject
    |  .project
    | =20
    +---subproject1
    |   \---.git
    |   |   Makefile
    | =20
    \---subproject2
        \---.git
        |   Makefile</pre>

</div><div>```</div><div><br></div><div>1. Open Emacs -Q</div><div><br></di=
v><div>2. M-x eval-expression `(setq debug-on-error t)`</div><div><br></div=
><div>
3. M-x eval-expression `(setq project-vc-extra-root-markers &#39;(&quot;.pr=
oject&quot;))` <br></div><div><br></div><div>4. Open the .project file in E=
macs<br></div><div><br></div><div>5.=20
M-x eval-expression `(project-current)`=C2=A0</div><div><br></div><div>=C2=
=A0=C2=A0=C2=A0 Result: `(vc nil &quot;e:/work/myproject/&quot;)` OK</div><=
div><br></div><div>6. M-x eval-expression `(project-files (project-current)=
)`</div><div><br></div><div>=C2=A0=C2=A0=C2=A0 Result: Debugger entered--Li=
sp error: (error &quot;File listing failed: FIND: Parameter format not co..=
.&quot;)<br>=C2=A0 error(&quot;File listing failed: %s&quot; &quot;FIND: Pa=
rameter format not correct\n&quot;)</div><div><br></div><div>The root cause=
 is that `project--files-in-directory` in project.el is using `find-program=
` (&quot;find&quot;) which<span lang=3D"en"><span><span> does not exist on =
Windows</span></span></span>.=C2=A0</div><div><br></div><div>Is it possible=
 to use more portable code? For example, `directory-files-recursively`? Oth=
erwise NTEmacs users will <span lang=3D"en"><span><span>have to install CYG=
WIN or MSYS2.</span></span></span>

</div><div><br></div><div>P.s.
I have used Projectile before, which allows you to place a .projectile file=
 in `myproject` and everything was OK

on Windows. Also if I focus on a git folder e.g. `subproject1` in the examp=
le above, the=20
`project-files` also works well.<br></div><div><br></div><div>Emacs 29.3 on=
 Windows 10.</div><div><br></div><div>Thanks.</div><div><br></div><div>Best=
 Regards,</div><div>Siyuan Chen<br>

</div><div><br></div></div>
</blockquote></div></div>

--00000000000014418b061baba615--

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Subject: bug#71762: `(project-files (project-current))` with `project-vc-extra-root-markers` doesn't work on Windows.
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 (message from Siyuan Chen on Tue, 25 Jun 2024 08:04:48 +0800)
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tags 71762 notabug
thanks

> From: Siyuan Chen <chansey97@HIDDEN>
> Date: Tue, 25 Jun 2024 08:04:48 +0800
> 
> Anyway, setting `(setq find-program (purecopy "C:/msys64/usr/bin/find.exe"))` makes the above example work
> at the moment. 

That's one possible solution.  Another is to rearrange your system's
PATH so that the directory C:\msys64\usr\bin comes _before_ the
C:\WINDOWS\system32, where you have the stock Windows find.exe (which
is a program for a completely different purpose and with completely
different command-line syntax).

Byw, the "msys64" part of the directory where you have find.exe seems
to hint that it is an MSYS port, not a native Windows/MinGW port.  If
that is indeed so, my recommendation is to install a native find.exe
and use that instead, as MSYS ports could have subtle
incompatibilities with a native Windows Emacs.

> Perhaps all NTEmacs users should set the 3 options: grep-program, find-program, xargs-program.

These variables already exist, so I'm not sure what you are suggesting
here.

In general, the only "problematic" program is find.exe, because
Windows comes only with that.  The other two programs must be
installed, and so there's no danger of Emacs invoking the wrong one.

I see no Emacs bug here, just an issue of configuring your system
and/or Emacs correctly.

> My only
> concern now is the potential issue with backslashes and encoding.

There should be no such issues, if you find one, please report that as
a bug.

Message received at control <at> debbugs.gnu.org:

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 (message from Siyuan Chen on Tue, 25 Jun 2024 08:04:48 +0800)
Subject: Re: bug#71762: `(project-files (project-current))` with
 `project-vc-extra-root-markers` doesn't work on Windows.
References: <CAHWTsY=tOjO3B3RLMxZu9OG7vVo4u3QTxj7CYV51tw-V+Hahrw@HIDDEN>
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tags 71762 notabug
thanks

> From: Siyuan Chen <chansey97@HIDDEN>
> Date: Tue, 25 Jun 2024 08:04:48 +0800
> 
> Anyway, setting `(setq find-program (purecopy "C:/msys64/usr/bin/find.exe"))` makes the above example work
> at the moment. 

That's one possible solution.  Another is to rearrange your system's
PATH so that the directory C:\msys64\usr\bin comes _before_ the
C:\WINDOWS\system32, where you have the stock Windows find.exe (which
is a program for a completely different purpose and with completely
different command-line syntax).

Byw, the "msys64" part of the directory where you have find.exe seems
to hint that it is an MSYS port, not a native Windows/MinGW port.  If
that is indeed so, my recommendation is to install a native find.exe
and use that instead, as MSYS ports could have subtle
incompatibilities with a native Windows Emacs.

> Perhaps all NTEmacs users should set the 3 options: grep-program, find-program, xargs-program.

These variables already exist, so I'm not sure what you are suggesting
here.

In general, the only "problematic" program is find.exe, because
Windows comes only with that.  The other two programs must be
installed, and so there's no danger of Emacs invoking the wrong one.

I see no Emacs bug here, just an issue of configuring your system
and/or Emacs correctly.

> My only
> concern now is the potential issue with backslashes and encoding.

There should be no such issues, if you find one, please report that as
a bug.

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On 25/06/2024 00:35, Siyuan Chen wrote:
> 
> Is it possible to use more portable code? For example, 
> `directory-files-recursively`? Otherwise NTEmacs users will have to 
> install CYGWIN or MSYS2.

There are also GNU tools available for download separately, e.g. see the 
ezwinports project.

I'm wary of using directory-files-recursively - because the performance 
can be much different. While right now you see the error and are thus 
encouraged to fix it by installing an extra program or two, in the other 
case the user would just see poor performance (given a large enough 
project) and perhaps some reduced features wrt filtering. And might not 
realize that it's not how the feature is supposed to work.

Also note that 'find.exe' is only required when you have a project 
that's outside of any Git repositories.

> P.s. I have used Projectile before, which allows you to place a 
> .projectile file in `myproject` and everything was OK on Windows. Also 
> if I focus on a git folder e.g. `subproject1` in the example above, the 
> `project-files` also works well.

Projectile has some different tradeoffs, e.g. you might have to reset 
the file cache manually in the above setup. It also has several indexing 
methods to choose from, each with pros and cons.

Message sent:

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Subject: bug#71762: closed (`(project-files (project-current))` with
 `project-vc-extra-root-markers` doesn't work on Windows.)
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Reproduces steps:

I have the following directory

```

\---myproject
    |  .project
    |
    +---subproject1
    |   \---.git
    |   |   Makefile
    |
    \---subproject2
        \---.git
        |   Makefile

```

1. Open Emacs -Q

2. M-x eval-expression `(setq debug-on-error t)`

3. M-x eval-expression `(setq project-vc-extra-root-markers '(".project"))`

4. Open the .project file in Emacs

5. M-x eval-expression `(project-current)`

    Result: `(vc nil "e:/work/myproject/")` OK

6. M-x eval-expression `(project-files (project-current))`

    Result: Debugger entered--Lisp error: (error "File listing failed:
FIND: Parameter format not co...")
  error("File listing failed: %s" "FIND: Parameter format not correct\n")

The root cause is that `project--files-in-directory` in project.el is using
`find-program` ("find") which does not exist on Windows.

Is it possible to use more portable code? For example,
`directory-files-recursively`? Otherwise NTEmacs users will have to install
CYGWIN or MSYS2.

P.s. I have used Projectile before, which allows you to place a .projectile
file in `myproject` and everything was OK on Windows. Also if I focus on a
git folder e.g. `subproject1` in the example above, the `project-files`
also works well.

Emacs 29.3 on Windows 10.

Thanks.

Best Regards,
Siyuan Chen

--000000000000847591061ba99199
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Reproduces steps:<br></div><div><br></div><div>I have=
 the following directory</div><div><br></div><div>```</div><div>
<pre>\---myproject
    |  .project
    | =20
    +---subproject1
    |   \---.git
    |   |   Makefile
    | =20
    \---subproject2
        \---.git
        |   Makefile</pre>

</div><div>```</div><div><br></div><div>1. Open Emacs -Q</div><div><br></di=
v><div>2. M-x eval-expression `(setq debug-on-error t)`</div><div><br></div=
><div>
3. M-x eval-expression `(setq project-vc-extra-root-markers &#39;(&quot;.pr=
oject&quot;))` <br></div><div><br></div><div>4. Open the .project file in E=
macs<br></div><div><br></div><div>5.=20
M-x eval-expression `(project-current)`=C2=A0</div><div><br></div><div>=C2=
=A0=C2=A0=C2=A0 Result: `(vc nil &quot;e:/work/myproject/&quot;)` OK</div><=
div><br></div><div>6. M-x eval-expression `(project-files (project-current)=
)`</div><div><br></div><div>=C2=A0=C2=A0=C2=A0 Result: Debugger entered--Li=
sp error: (error &quot;File listing failed: FIND: Parameter format not co..=
.&quot;)<br>=C2=A0 error(&quot;File listing failed: %s&quot; &quot;FIND: Pa=
rameter format not correct\n&quot;)</div><div><br></div><div>The root cause=
 is that `project--files-in-directory` in project.el is using `find-program=
` (&quot;find&quot;) which<span class=3D"gmail-HwtZe" lang=3D"en"><span cla=
ss=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=3D"gmail-ryNqvb"> =
does not exist on Windows</span></span></span>.=C2=A0</div><div><br></div><=
div>Is it possible to use more portable code? For example, `directory-files=
-recursively`? Otherwise NTEmacs users will <span class=3D"gmail-HwtZe" lan=
g=3D"en"><span class=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=
=3D"gmail-ryNqvb">have to install CYGWIN or MSYS2.</span></span></span>

</div><div><br></div><div>P.s.
I have used Projectile before, which allows you to place a .projectile file=
 in `myproject` and everything was OK

on Windows. Also if I focus on a git folder e.g. `subproject1` in the examp=
le above, the=20
`project-files` also works well.<br></div><div><br></div><div>Emacs 29.3 on=
 Windows 10.</div><div><br></div><div>Thanks.</div><div><br></div><div>Best=
 Regards,</div><div>Siyuan Chen<br>

</div><div><br></div></div>

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Subject: Re: bug#71762: `(project-files (project-current))` with
 `project-vc-extra-root-markers` doesn't work on Windows.
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Eli Zaretskii <eliz@HIDDEN> writes:

> tags 71762 notabug
> thanks
>
>> From: Siyuan Chen <chansey97@HIDDEN>
>> Date: Tue, 25 Jun 2024 08:04:48 +0800
>>
>> Anyway, setting `(setq find-program (purecopy "C:/msys64/usr/bin/find.exe"))` makes the above example work
>> at the moment.
>
> That's one possible solution.  Another is to rearrange your system's
> PATH so that the directory C:\msys64\usr\bin comes _before_ the
> C:\WINDOWS\system32, where you have the stock Windows find.exe (which
> is a program for a completely different purpose and with completely
> different command-line syntax).
>
> Byw, the "msys64" part of the directory where you have find.exe seems
> to hint that it is an MSYS port, not a native Windows/MinGW port.  If
> that is indeed so, my recommendation is to install a native find.exe
> and use that instead, as MSYS ports could have subtle
> incompatibilities with a native Windows Emacs.
>
>> Perhaps all NTEmacs users should set the 3 options: grep-program, find-program, xargs-program.
>
> These variables already exist, so I'm not sure what you are suggesting
> here.
>
> In general, the only "problematic" program is find.exe, because
> Windows comes only with that.  The other two programs must be
> installed, and so there's no danger of Emacs invoking the wrong one.
>
> I see no Emacs bug here, just an issue of configuring your system
> and/or Emacs correctly.

I'm therefore closing this bug report.


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Subject: bug#71762: closed (Re: bug#71762: `(project-files (project-current))`
 with `project-vc-extra-root-markers` doesn't work on Windows.)
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Your bug report

#71762: `(project-files (project-current))` with `project-vc-extra-root-mar=
kers` doesn't work on Windows.

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 71762 <at> debbugs.gnu.org.

--=20
71762: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D71762
GNU Bug Tracking System
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 `project-vc-extra-root-markers` doesn't work on Windows.
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Eli Zaretskii <eliz@HIDDEN> writes:

> tags 71762 notabug
> thanks
>
>> From: Siyuan Chen <chansey97@HIDDEN>
>> Date: Tue, 25 Jun 2024 08:04:48 +0800
>>
>> Anyway, setting `(setq find-program (purecopy "C:/msys64/usr/bin/find.exe"))` makes the above example work
>> at the moment.
>
> That's one possible solution.  Another is to rearrange your system's
> PATH so that the directory C:\msys64\usr\bin comes _before_ the
> C:\WINDOWS\system32, where you have the stock Windows find.exe (which
> is a program for a completely different purpose and with completely
> different command-line syntax).
>
> Byw, the "msys64" part of the directory where you have find.exe seems
> to hint that it is an MSYS port, not a native Windows/MinGW port.  If
> that is indeed so, my recommendation is to install a native find.exe
> and use that instead, as MSYS ports could have subtle
> incompatibilities with a native Windows Emacs.
>
>> Perhaps all NTEmacs users should set the 3 options: grep-program, find-program, xargs-program.
>
> These variables already exist, so I'm not sure what you are suggesting
> here.
>
> In general, the only "problematic" program is find.exe, because
> Windows comes only with that.  The other two programs must be
> installed, and so there's no danger of Emacs invoking the wrong one.
>
> I see no Emacs bug here, just an issue of configuring your system
> and/or Emacs correctly.

I'm therefore closing this bug report.


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From: Siyuan Chen <chansey97@HIDDEN>
Date: Tue, 25 Jun 2024 05:35:54 +0800
Message-ID: <CAHWTsY=tOjO3B3RLMxZu9OG7vVo4u3QTxj7CYV51tw-V+Hahrw@HIDDEN>
Subject: `(project-files (project-current))` with
 `project-vc-extra-root-markers` doesn't work on Windows.
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Reproduces steps:

I have the following directory

```

\---myproject
    |  .project
    |
    +---subproject1
    |   \---.git
    |   |   Makefile
    |
    \---subproject2
        \---.git
        |   Makefile

```

1. Open Emacs -Q

2. M-x eval-expression `(setq debug-on-error t)`

3. M-x eval-expression `(setq project-vc-extra-root-markers '(".project"))`

4. Open the .project file in Emacs

5. M-x eval-expression `(project-current)`

    Result: `(vc nil "e:/work/myproject/")` OK

6. M-x eval-expression `(project-files (project-current))`

    Result: Debugger entered--Lisp error: (error "File listing failed:
FIND: Parameter format not co...")
  error("File listing failed: %s" "FIND: Parameter format not correct\n")

The root cause is that `project--files-in-directory` in project.el is using
`find-program` ("find") which does not exist on Windows.

Is it possible to use more portable code? For example,
`directory-files-recursively`? Otherwise NTEmacs users will have to install
CYGWIN or MSYS2.

P.s. I have used Projectile before, which allows you to place a .projectile
file in `myproject` and everything was OK on Windows. Also if I focus on a
git folder e.g. `subproject1` in the example above, the `project-files`
also works well.

Emacs 29.3 on Windows 10.

Thanks.

Best Regards,
Siyuan Chen

--000000000000847591061ba99199
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Reproduces steps:<br></div><div><br></div><div>I have=
 the following directory</div><div><br></div><div>```</div><div>
<pre>\---myproject
    |  .project
    | =20
    +---subproject1
    |   \---.git
    |   |   Makefile
    | =20
    \---subproject2
        \---.git
        |   Makefile</pre>

</div><div>```</div><div><br></div><div>1. Open Emacs -Q</div><div><br></di=
v><div>2. M-x eval-expression `(setq debug-on-error t)`</div><div><br></div=
><div>
3. M-x eval-expression `(setq project-vc-extra-root-markers &#39;(&quot;.pr=
oject&quot;))` <br></div><div><br></div><div>4. Open the .project file in E=
macs<br></div><div><br></div><div>5.=20
M-x eval-expression `(project-current)`=C2=A0</div><div><br></div><div>=C2=
=A0=C2=A0=C2=A0 Result: `(vc nil &quot;e:/work/myproject/&quot;)` OK</div><=
div><br></div><div>6. M-x eval-expression `(project-files (project-current)=
)`</div><div><br></div><div>=C2=A0=C2=A0=C2=A0 Result: Debugger entered--Li=
sp error: (error &quot;File listing failed: FIND: Parameter format not co..=
.&quot;)<br>=C2=A0 error(&quot;File listing failed: %s&quot; &quot;FIND: Pa=
rameter format not correct\n&quot;)</div><div><br></div><div>The root cause=
 is that `project--files-in-directory` in project.el is using `find-program=
` (&quot;find&quot;) which<span class=3D"gmail-HwtZe" lang=3D"en"><span cla=
ss=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=3D"gmail-ryNqvb"> =
does not exist on Windows</span></span></span>.=C2=A0</div><div><br></div><=
div>Is it possible to use more portable code? For example, `directory-files=
-recursively`? Otherwise NTEmacs users will <span class=3D"gmail-HwtZe" lan=
g=3D"en"><span class=3D"gmail-jCAhz gmail-JxVs2d gmail-ChMk0b"><span class=
=3D"gmail-ryNqvb">have to install CYGWIN or MSYS2.</span></span></span>

</div><div><br></div><div>P.s.
I have used Projectile before, which allows you to place a .projectile file=
 in `myproject` and everything was OK

on Windows. Also if I focus on a git folder e.g. `subproject1` in the examp=
le above, the=20
`project-files` also works well.<br></div><div><br></div><div>Emacs 29.3 on=
 Windows 10.</div><div><br></div><div>Thanks.</div><div><br></div><div>Best=
 Regards,</div><div>Siyuan Chen<br>

</div><div><br></div></div>

--000000000000847591061ba99199--



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