DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 522MYfoC2561636
Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 522MYfoC2561636
Authentication-Results: delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=iGtmbrmF
X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A88223858C5F
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1740954879;
	bh=CHbJVEjne3qxYLmYNYk7ijhCtpmsD3eE0Qq7rVvJlOs=;
	h=Date:To:Subject:In-Reply-To:References:List-Id:List-Unsubscribe:
	 List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	 From;
	b=iGtmbrmFOa4hGP3TWhdFhFEuoy6XROXpyTGkejyH0w3zNnKBPPJhaXTxgyP5kRqBp
	 4tyBwQLHXmU+ew4kdpPXzkt3ryauybS1R7KQCL1NqOA7f7L58/CyeE7mnvXEVt8qkd
	 HyOU2ZjtBxDiTpu1SppRGlW0evnc8l/V9sn9AEkA=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org E1F1D3858D21
ARC-Filter: OpenARC Filter v1.0.0 sourceware.org E1F1D3858D21
ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1740954767; cv=none;
 b=eJKgzDm45tcnxRulYzcg+hYhgsCJvhCPkvAQP8msjAEIOWWixLeLMptl6zPFHmb3dk+G881E+mRXmz1N9m4vFs25VBFYAg0kH7avebWg7kE+G2ksGUo+Nl/l62yJmoDlY+zNK1bt7MGELTD5X5XmFPCNDZ0wsjJi/xOmgMrmnGc=
ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key;
 t=1740954767; c=relaxed/simple;
 bh=R6bN9YrKghtp0iPb2diA4qMoPAP+eWdo/z1adgUgSOM=;
 h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version;
 b=EnyKbx2TMeeaqY5ZLco9l4Pr9bGvFN4f17o9iMcVL9XNAP2GIr/w4OiluT539DC6CEe8zwGV5a+LS6xmJ9U2acMyYykob24wYDzV5Wt5sy5xu8hfvM0fkMhwIxXXOurM/kYqnkWMYJa2xUTAuHH/M+O/iDBknHo3um8XjOMHmMw=
ARC-Authentication-Results: i=1; server2.sourceware.org
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E1F1D3858D21
Date: Sun, 2 Mar 2025 14:32:45 -0800 (PST)
X-X-Sender: jeremyd AT resin DOT csoft DOT net
To: cygwin AT cygwin DOT com
Subject: Re: cleanup of in-use files moved to recycle bin
In-Reply-To: <da7896a3-bf3c-8580-03bf-2ac485e898c4@jdrake.com>
Message-ID: <2a781007-8b06-db4d-7bcc-59f45fbae8b8@jdrake.com>
References: <da7896a3-bf3c-8580-03bf-2ac485e898c4 AT jdrake DOT com>
MIME-Version: 1.0
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.30
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Jeremy Drake via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Jeremy Drake <cygwin AT jdrake DOT com>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

On Mon, 3 Jun 2024, Jeremy Drake via Cygwin wrote:

> I'm not necessarily sure that the subject is clear enough, so I want to be
> explicit that I'm talking about files (or I guess potentially directories,
> though I've never seen that) generated by the `try_to_bin` function in
> winsup/cygwin/syscalls.cc.  Specifically, you can generate one with this
> simple bash reproducer:
>
> cp /usr/bin/sleep.exe .
> ./sleep 1000 &
> rm -f ./sleep.exe
> kill %1
> fg
>
> My questions are (starting at the beginning with what I'm trying to
> accomplish, and wandering off into the weeds of the various things I've
> tried to do that).
>
> 1) is there some mechanism in Cygwin that I'm not seeing to clean up these
> files?  So far I've confirmed that their creation does not result in the
> recycle bin icon turning from 'empty' to 'full' on the desktop, and that
> emptying the recycle bin there (when it doesn't think it's already empty)
> does not remove them.
>
> 2) assuming there is not, I want to make a script using only things
> present in a "base system" to clean them up.

Now that the mount points are escaped and contain the Windows volume roots
starting with 3.6, here's my script.  It uses bash/find/gawk.  I'd welcome
any ideas on improving it, I've only just started messing with gawk.  (I'd
started out doing grep/cut then xargs printf "%b\0" to unescape, but with
gawk I can do that all in one program).

It's in
https://gist.github.com/jeremyd2019/4984ff0fa1f6fd8c99d7b8b244c52088

#!/bin/bash -ex

IFS=. read -r cygmajor cygminor _ < <(uname -r)

declare -a roots

if [ "${cygmajor}" -gt 3 -o "${cygmajor}" -eq 3 -a "${cygminor}" -ge 6 ]; then
  # as of cygwin 3.6, volume roots are parsable from /proc/mounts
  # (noumount is the option that indicates a cygdrive mount)
  readarray -t -d $'\0' roots < <(
    LC_CTYPE=C LC_COLLATE=C gawk -v 'ORS=\0' -l ordchr '
      $4 ~ /\<noumount\>/ {
	split($2,a,/\\0?[0-7]{1,3}/,seps)
	ret=a[1]
	for (x=2; x<=length(a); x++)
	  ret = ret chr(strtonum("0" substr(seps[x-1],2))) a[x]
	print ret
      }' /proc/mounts)
else
  # before that, just punt and look at the root of the drive / is mounted on
  root="$(cygpath -w /)"
  roots=("$(cygpath -u "${root:0:2}")")
  unset root
fi

declare -a trash
readarray -t -d $'\0' trash < <(
  LC_CTYPE=C LC_COLLATE=C \
  find "${roots[@]}" -maxdepth 1 -iname '$Recycle.Bin' -print0 |
  LC_CTYPE=C LC_COLLATE=C \
  find -files0-from - -maxdepth 2 \( -name $'.\uDC6D\uDC73\uDC79\uDC73*' -o \
                                     -name $'.\uF76D\uF773\uF779\uF773*' -o \
                                     -name '.msys*' -o \
                                     -name $'.\uDC63\uDC79\uDC67*' -o \
                                     -name $'.\uF763\uF779\uF767*' -o \
                                     -name '.cyg*' \) -print0)
if (( ${#trash[@]} )); then
  ls -la "${trash[@]}"
  read -r -p "Remove? (y/N) "

  if [[ "${REPLY^^}" == "Y" ]]; then
    rm -f "${trash[@]}"
  fi
fi

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple