Path: csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: "James D. Lin" Newsgroups: gnu.bash.bug Subject: Changes to HISTIGNORE are not honored when changed via a reference? Date: Sat, 13 Jun 2020 15:17:05 -0700 Lines: 48 Approved: bug-bash@gnu.org Message-ID: References: NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: usenet.stanford.edu 1592093058 25059 209.51.188.17 (14 Jun 2020 00:04:18 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash@gnu.org Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=3kBxZQ8CUdRXLf2NLAucaoA2/DwsxPXibW4RgNQXH+M=; b=U4puWbWAbgzyOtlJqk1Aanld7Pae69QTcEqFk3zw8NW1RP/dZN4C2wv19W5Aaa//XC ZP5AvJM+LQPqHFrHqLzCW89ZfJvg00R0Wg20rta9jKT8RsiMs9AyN47xWSeahApfMdN/ qegsGMdc6VmQCkafPKBoHzDRLwjOtEo8djlDvRG7XwcY2OXQkrT6SUvDC9WGon8oy19C ZHESxmU9uBNkBfRmFHKQ4BHOlcFJHLSqKJNlX4Y9YrKQiM9IVzawUu4sOpy5OY5GOHSB q/C4t1/gJSLEz8F63dzKTYpRMT608pITngRI2Ld+QPIl/47+BGvq/P+AF1pL7RGlkbq6 zOAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=3kBxZQ8CUdRXLf2NLAucaoA2/DwsxPXibW4RgNQXH+M=; b=l+Yo98/NcKsvFz9BvCsnSnl3xKpl37+ZMNls+FJwna+1D44fAjCZW6bOXQxwoxtY6C DJSXcB3o98WcZ+Gf42C64qqOerV181X2rgR1U01z0yxW68W9mEoRUWCDnSkO6JymkHM2 CjQC4vGl4aEKeuj9Z+OpNZ69L36J6z65pLVTFYsbQLTT66NIAoFAgh/t3t4LtPTDMezb RnjpbjoMgCNmXl8WxFDLv2TvO7YFGunTvp7FfR5qdw2sYdET2umdOQJgi3YbzHpMeAzr Ex7VxEKYgJBu3XtnJtb/QXAQNcGnHNoZ+6tzWyGFFUCPErbtiNWp7ZkSIcT7bYq3nTdT LTlQ== X-Gm-Message-State: AOAM531Xv+a1QlYGh9gY+CyRe6ZBIzwkD9WLKanOdB7Q1VTM7qJBPDp2 UbrT77KaANH5kYMjLghGu3IifGbwgoW4BgOQSjUdPDJ6auI= X-Google-Smtp-Source: ABdhPJyu4DxbrsJSh7c1r0o80GqU2teuJC0jAUCnZU/hNLnLHj4nC+TAYU2A+WW35mnw2VV5xnMVHLC0Fqj5gi4k6ks= X-Received: by 2002:a67:7914:: with SMTP id u20mr14143964vsc.102.1592086664629; Sat, 13 Jun 2020 15:17:44 -0700 (PDT) Received-SPF: pass client-ip=2607:f8b0:4864:20::e2e; envelope-from=jamesdlin@gmail.com; helo=mail-vs1-xe2e.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-Mailman-Approved-At: Sat, 13 Jun 2020 20:04:16 -0400 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: Xref: csiph.com gnu.bash.bug:16380 Configuration Information [Automatically generated, do not change]: Machine: x86_64 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/bash-2bxm7h/bash-5.0=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wno-parentheses -Wno-format-security uname output: Linux debian 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) x86_64 GNU/Linux Machine Type: x86_64-pc-linux-gnu Bash Version: 5.0 Patch Level: 3 Release Status: release Description: If I modify the `HISTIGNORE` variable indirectly through a reference (e.g. via `declare -n` or `local -n`), `HISTIGNORE` reflects the change, but the change isn't honored. Repeat-By: $ HISTIGNORE=ls $ history -c $ ls $ history 1 history `ls` is not listed, and `history` is, as expected. $ declare -n historyref=HISTIGNORE $ historyref=ls:history $ echo $HISTIGNORE ls:history $ history -c $ history 1 history `history` is still listed, despite being included by `HISTIGNORE`. $ HISTIGNORE=$HISTIGNORE $ history -c $ history Now nothing is printed, as expected. - James