From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-39090-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 21489 invoked by alias); 23 Aug 2016 04:31:13 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
X-Seq: 39090
Received: (qmail 13585 invoked from network); 23 Aug 2016 04:31:13 -0000
X-Qmail-Scanner-Diagnostics: from mail-wm0-f48.google.com by f.primenet.com.au (envelope-from <stephane.chazelas@gmail.com>, uid 7791) with qmail-scanner-2.11 
 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1.  
 Clear:RC:0(74.125.82.48):SA:0(0.0/5.0):. 
 Processed in 0.129683 secs); 23 Aug 2016 04:31:13 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,SPF_PASS,
	T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.1
X-Envelope-From: stephane.chazelas@gmail.com
X-Qmail-Scanner-Mime-Attachments: |
X-Qmail-Scanner-Zip-Files: |
Received-SPF: pass (ns1.primenet.com.au: SPF record at _netblocks.google.com designates 74.125.82.48 as permitted sender)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=date:from:to:subject:message-id:mail-followup-to:mime-version
         :content-disposition:user-agent;
        bh=mXHf4wbvIGzKN+cC+dOlkRyDKUAfaXGjmFNjfXA53WA=;
        b=CUa5nBt0oOqLcptiLqpzHR02aTxrsBtjThNwpiKojrVMjGHsfnHYeIQ6P6iQQk8V0j
         V4P9fhpapg9JSPtcgTdqy/8fK5dwERaRnv3VmLmDeG7Yhag936ROW8FpOgMdzwdwHGiP
         f7EM29XBb6iVmhXHRwyG70EBj7AEbveXWV+Bh6VlyX9/EzQZc29uDAHbx81Vf43FrdVi
         GEDS/siYs2BWUgYVeyRamq/rKynrFYCqaQLYq6n7SM5AErbxEdxSuGPCpzFSIr0V00Jz
         FFv+IC4FRQrSnTlFglFumOLgDahCGbvDakvrcQuTDoRa/fv2nyFQAnBrcf8hjyQzZpMt
         YHPg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20130820;
        h=x-gm-message-state:date:from:to:subject:message-id:mail-followup-to
         :mime-version:content-disposition:user-agent;
        bh=mXHf4wbvIGzKN+cC+dOlkRyDKUAfaXGjmFNjfXA53WA=;
        b=mxVPyY30KhO7Nhjki/k1r3dAE+RGnQELi17kNODGm4O0badsXNhX70ck8P6kHVdoiW
         z0PNN1tD1N0P30vyvBxnVjQuae5e/Hu6j6JrGsahXF0331mzuU/mD5v6v/eJK4JseI++
         Y51ILPwwFG2n5ZP0yykLuVy8DBqKZ0G00n61O079Nn+tgUoeZkZL/ShKIkXHb2Sfvqk+
         AgRGsWPtqHiWXsw7b1WEgIUNidvvAB6BmV4+CZw4ARIPs+pMvPExRmMWnNY1cbcBqYoK
         3aKWfsZ57QgK69cQBhMT92pskRRNY2oCJgEvKgXhbHR5hOdNm/W2FpI6RZs8LS8VFOA0
         5uuA==
X-Gm-Message-State: AEkoouvE3Csj9sVD67aickjkzRz7srnWNzMgup3/lO0gDfr/+bQ9qoXjG+XLTmYhQI8pQg==
X-Received: by 10.28.131.208 with SMTP id f199mr13094157wmd.116.1471846645771;
        Sun, 21 Aug 2016 23:17:25 -0700 (PDT)
Date: Mon, 22 Aug 2016 07:17:23 +0100
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: [bug] $SHLVL decremented for the last command of a subshell
Message-ID: <20160822061723.GA7308@chaz.gmail.com>
Mail-Followup-To: Zsh hackers list <zsh-workers@zsh.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.5.21 (2010-09-15)

(from https://unix.stackexchange.com/questions/304917/detect-when-zsh-is-running-within-the-subshell-of-another-shell)

$ printenv SHLVL
1
$ (printenv SHLVL)
0
$ (printenv SHLVL;:)
1
$ (:;printenv SHLVL)
0


http://www.zsh.org/mla/workers/1999/msg02472.html
sounds like a potential culprit.

-- 
Stephane