From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-21915-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 13840 invoked by alias); 15 Sep 2016 08:20:24 -0000
Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Users List <zsh-users.zsh.org>
List-Post: <mailto:zsh-users@zsh.org>
List-Help: <mailto:zsh-users-help@zsh.org>
X-Seq: 21915
Received: (qmail 10685 invoked from network); 15 Sep 2016 08:20:24 -0000
X-Qmail-Scanner-Diagnostics: from mail-qk0-f173.google.com by f.primenet.com.au (envelope-from <sgniazdowski@gmail.com>, uid 7791) with qmail-scanner-2.11 
 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1.  
 Clear:RC:0(209.85.220.173):SA:0(0.0/5.0):. 
 Processed in 0.149885 secs); 15 Sep 2016 08:20:24 -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: sgniazdowski@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 209.85.220.173 as permitted sender)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:in-reply-to:references:from:date:message-id:subject:to
         :cc;
        bh=fNe2EdEySMdTnh7JtZqEGadbbkEeRFebq0siOMy5pA0=;
        b=CjYraJi67XxxFon0FoETLJUNu/wUg/vWoJmZHrrxLYahbLIE3IQbT2oc/iuaLAQm52
         vhQz1KwYq1daJahF0jAn1L5pj49s4X98k7XUQ1vz6nL/W7STa7Y8SFrikW3yjbdNbXIl
         PJlzSsc7Jc39CQFTJU3R5OSxMpuDTMLo7mhdl87B4G81M+I3p0m9k5Z5cFMjCcKrD7Kg
         3wz/jziMM2Dhsjq7m+n5dVLGJHJkUV+vHx2rxyI7jZRwhQaScCLTXd4G8CrT/gBfm1lz
         LQnDqTRguR0AWd19lOjH4vMoH81mubnvGPQHF7ji36OJHSIxK5xGd8D57Ab174eUYLAu
         kWPA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20130820;
        h=x-gm-message-state:mime-version:in-reply-to:references:from:date
         :message-id:subject:to:cc;
        bh=fNe2EdEySMdTnh7JtZqEGadbbkEeRFebq0siOMy5pA0=;
        b=MiaM3QdIlF0ZswR6Qc4fkzOQaMCBu2iVUwe33OchYFl5ZRyi5ZhCH+GXaSMvyw/PZU
         R/pHCEtYxnKjB2kmcqiGlsxwnoOcDhN3YKBfgEQrfeIjn166P0LWuWi8pTO2RasFdU9O
         4twXkKGKfcycajepyCXaurHWHgpBw5E83owOrzLKw0wZnJ6l8FY0nzo4nIDscYGenDZx
         fGNaJu1xa7Fdkv2upabVaSMuUIKv4K/jecQJ6AINbUHLarquHonfq21899rIvclK1Svr
         Dtp0UfWP4FEaW6gcm477azeFC/gB9cgCYttv04zm1K9qrztxfT8LEMwP2CowBhU58boy
         BCJg==
X-Gm-Message-State: AE9vXwMtibmEMzN6SieQxXG6G84BYAFGQVCUehkFUMA00jJVwffv5TFahSGs5B/33ruQ4uaFE9vBBW74m3ZOyQ==
X-Received: by 10.55.169.193 with SMTP id s184mr7580681qke.3.1473921083492;
 Wed, 14 Sep 2016 23:31:23 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <20160913143042.3907c2b3@pwslap01u.europe.root.pri>
References: <CGME20160913122504eucas1p121867b112b7f08e125a324230d8296df@eucas1p1.samsung.com>
 <CAKc7PVCErL0ZykRG-72foh8URN1UsO9jvPHuxiCDkum_pooXYg@mail.gmail.com>
 <20160913140643.56f99ccf@pwslap01u.europe.root.pri> <CAKc7PVAGqeJK=kdpQ9hSBcgpJmn639X94BU0CoNR2m6L2VBfcg@mail.gmail.com>
 <20160913143042.3907c2b3@pwslap01u.europe.root.pri>
From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Date: Thu, 15 Sep 2016 08:31:03 +0200
Message-ID: <CAKc7PVB6+QcQXe2x1+UeADpZpsNcN1=a48cfR=c4OVp23pJXwg@mail.gmail.com>
Subject: Re: How to detect that Zsh startup is result of exec zsh?
To: Peter Stephenson <p.stephenson@samsung.com>
Cc: Zsh Users <zsh-users@zsh.org>
Content-Type: text/plain; charset=UTF-8

On 13 September 2016 at 15:30, Peter Stephenson
<p.stephenson@samsung.com> wrote:
> BTW, telling you're in a subshell when you're still in the parent shell
> is actually easy:
>
> zmodload zsh/system
> if (( $$ ==  $sysparams[pid] )); then
>   print "I'm in the parent shell"
> else
>   print "I'm in a subshell"
> fi
>
> However, that's too early for you --- you need to know at the start of
> the new zsh.  I think some external mapping to PIDs is the only reliable
> way.
>
> pws

For me the two values are always the same:
https://asciinema.org/a/1tpk0k6jii36iwrzawlr2ador

This reminds me $ZSH_SUBSHELL that Mikael proposed, which is always 0 for me:
https://asciinema.org/a/1jtfup4jrl14w7bps84wupqai

Testing this on IRC bot gave correct result, i.e. "1" was assigned
after running zsh IIRC. So maybe this is OS X issue, maybe even the
same in both cases?

Best regards,
Sebastian Gniazdowski