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Date: Sun, 05 Jan 2025 19:46:26 +0100
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Subject: Re: [bug-diffutils] bug#68695: Please, fix documentation on
whitespace in pathnames
From: =?utf-8?q?Mat=C4=9Bj_Cepl?= <mcepl@HIDDEN>
To: "Jim Meyering" <jim@HIDDEN>
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On Sun Jan 5, 2025 at 6:44 PM CET, Jim Meyering wrote:
> So at the very least, I'll adjust the documentation to reflect the above.
> Hoping that I can also soon say that upstream GNU patch handles these
> encoded names.
I would like just to emphasize that there are two distinct cases:
yes, filenames with $'\n' or $'\t' are really weird and unusual,
but filenames with a space are rather common. Even normal cpython
had (until recently: they apparently capitulated and replaced
spaces with underscores) directory
https://github.com/python/cpython/tree/3.9/Misc/NEWS.d/next/Core%20and%20Bu=
iltins,
which is part of every commit to the =E2=80=9CCore and Builtins=E2=80=9D
component of the Python interpreter.
--=20
http://matej.ceplovi.cz/blog/, @mcepl@HIDDEN
GPG Finger: 3C76 A027 CA45 AD70 98B5 BC1D 7920 5802 880B C9D8
=20
So many time, the attitude of my heart is: =E2=80=9CGod, just tell us
what to do so we can do it=E2=80=A6without you.=E2=80=9D Independently.
-- Gretchen Konnevik: On Josh Harris, Homeschooling, and
Spiritual Formulas; https://wp.me/p69TD5-1Xv
bug-diffutils@HIDDEN:bug#68695; Package diffutils.
Full text available.Received: (at 68695-done) by debbugs.gnu.org; 5 Jan 2025 19:50:06 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jan 05 14:50:06 2025 Received: from localhost ([127.0.0.1]:35335 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tUWdR-00068B-FF for submit <at> debbugs.gnu.org; Sun, 05 Jan 2025 14:50:05 -0500 Received: from mail-pj1-f50.google.com ([209.85.216.50]:56572) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <meyering@HIDDEN>) id 1tUWdP-00066T-Cr for 68695-done <at> debbugs.gnu.org; Sun, 05 Jan 2025 14:50:04 -0500 Received: by mail-pj1-f50.google.com with SMTP id 98e67ed59e1d1-2ef89dbd8eeso14460072a91.0 for <68695-done <at> debbugs.gnu.org>; Sun, 05 Jan 2025 11:50:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736106602; x=1736711402; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=0mtpiqKeTsmaia1ezISaQEUNASbu6SWXKSfhNXxbA+Y=; b=HXgQQkzBL76YZleAKhARXGnuVi64EPrMCXOPJO3iDWBcKD0SbVGpfWZTkHdjpiwowR 9juwQ72yrnQTp1V3cBoHlf8vzxw28TqGsxxggtfM5JpnG61Icbng5a9dMPwTCzgr/dho zJFTPOoWjHzVzufWDyQeidTJEQwxXVFBLeT43gETpU62RtEv/T+MBQ/83Q1TOnKx+aVt wTTUXSZdlB4/OUIv9TC5Q4z/ySVDyyAcY3i+lyVvGVijg87RB2L52XaovGePWA28EcHt WZvoTSSMzaIWl8puu9+j/9vWwk0/xmSJITbYYKsCR6/CTGYdLOmbBL5ztjDzjlvt8au9 GFOQ== X-Forwarded-Encrypted: i=1; AJvYcCUi4WKlp5mRs/v2s3e6ghykHIAdRERkRp1mCkbVjLkV0fpb05zt5M6rI7+GaI3HZctzBAlP8ipqO+Va <at> debbugs.gnu.org X-Gm-Message-State: AOJu0YyMYSGiQnnTRpxGR3nGRTyknaVJwui7/ufCFUndZJUb1nW6BSSb 63BZvWogC138VupqSZ7/BxMvl0LSPf7mV47CdhXkKAsOnV7e3oOX0ht1Q9juBxyDOXo1oMYOAvL DiDd74G0erLFKpmYxPWXclhi98LA= X-Gm-Gg: ASbGncsMlzV7TqIhzLvQPDNyBo75RFu6v71eGQPmdKwB7OVedL7AAQL4cDQG66Iz+Ak syorxXhQbkfLta3cIpBAQ1DpEzavIVXTkrm3TTA== X-Google-Smtp-Source: AGHT+IEd5NQPrV2B0UINKzpLIP2uspdazfRw7DEiNz/AUoRhJ8CDYWimR0B9UPIzZ0/aDKytNNs6Kk8+qxRVQcGkQ2o= X-Received: by 2002:a17:90a:d88d:b0:2ee:863e:9ffc with SMTP id 98e67ed59e1d1-2f452e4ace5mr73592754a91.21.1736106601742; Sun, 05 Jan 2025 11:50:01 -0800 (PST) MIME-Version: 1.0 References: <CYN5Y9C66IW1.3AAYN9I2U5T2B@HIDDEN> <CA+8g5KH6e8u-iv=SrRYUC4jj8=_yLXvjzSHmXUa6sCvvTWWCTQ@HIDDEN> In-Reply-To: <CA+8g5KH6e8u-iv=SrRYUC4jj8=_yLXvjzSHmXUa6sCvvTWWCTQ@HIDDEN> From: Jim Meyering <jim@HIDDEN> Date: Sun, 5 Jan 2025 11:49:48 -0800 Message-ID: <CA+8g5KH9U=54eCZ33NvyVrrDF61H55=t7ktw4H6jKLLxKmnf5g@HIDDEN> Subject: Re: [bug-diffutils] bug#68695: Please, fix documentation on whitespace in pathnames To: =?UTF-8?Q?Mat=C4=9Bj_Cepl?= <mcepl@HIDDEN> Content-Type: text/plain; charset="UTF-8" X-Spam-Score: 0.2 (/) X-Debbugs-Envelope-To: 68695-done Cc: 68695-done <at> debbugs.gnu.org, Andreas Gruenbacher <agruen@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.8 (/) > So at the very least, I'll adjust the documentation to reflect the above. > Hoping that I can also soon say that upstream GNU patch handles these > encoded names. Pushed the documentation change here: https://git.savannah.gnu.org/cgit/diffutils.git/commit/?id=dfaa846f093277db65944774497abb348e63760a Marking this as "done". Thanks again.
Matěj Cepl <mcepl@HIDDEN>:Jim Meyering <jim@HIDDEN>:Received: (at 68695) by debbugs.gnu.org; 5 Jan 2025 17:44:37 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jan 05 12:44:37 2025 Received: from localhost ([127.0.0.1]:35038 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tUUg0-0007kn-Jy for submit <at> debbugs.gnu.org; Sun, 05 Jan 2025 12:44:36 -0500 Received: from mail-pj1-f53.google.com ([209.85.216.53]:57694) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <meyering@HIDDEN>) id 1tUUfx-0007kb-Md for 68695 <at> debbugs.gnu.org; Sun, 05 Jan 2025 12:44:35 -0500 Received: by mail-pj1-f53.google.com with SMTP id 98e67ed59e1d1-2ee9a780de4so14388288a91.3 for <68695 <at> debbugs.gnu.org>; Sun, 05 Jan 2025 09:44:33 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736099073; x=1736703873; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1QiW8VlzpJfbJanmKZKkzGTIEebv/+iTg4hIxIKzFHI=; b=pPB0lAylm9sIKJlDzi3wlU8VOc0lo0iwzzFzF5GNV34nqt1AriPLY6ZjlNcKQ1/Dlf kwyt9TFvj4Eycc+tvWw6ci55ksHa+v9JDmqt7S66+BW20NdUny7x0X4eZC0LIlI3uvtB 64e+Uy16o1Z5XsWpUb/5bw4op76mhVc1hFmDRIumd74sxubWxuEma+4o9lvAZf94mdpC AVRu0Gnu3wBM+A4EZ9dleYZnWWeFKctSgL8b98cxNNOo0TC1682icttOnwaEsNZ3A5Ee 9KCca47POJdf21DHzWEVd3CfWiDb2HVojDWVYSqzK0DyNcpoUMHbsRk1RuNhW4LNPAxg Q5Fw== X-Gm-Message-State: AOJu0Yx3l9b7IN7VteVJz1U3j8s+MF6bJVLoixQL8GSMQdxC2Q/mGLVF eIlSjDxiRJ14YLu3yA8QQhHhtUb2cnh0RpSuaOm/ZdNdKFM3PpqdOUoFbT0oYXrcB9wwy7fLpZx nPqI52Jc56EqIhM8M2DYGc3V8uY4= X-Gm-Gg: ASbGncum06PN1pCH+6QWSAg0QRZgAQcY3KjWqDb3USLfpi/q8r4x5Mdvjb79k4fqT2Q bCWMtawCG2UiXtG5h/4TitEY+zpYZEOO/0PApcw== X-Google-Smtp-Source: AGHT+IG2KQg1P2vSg8UpsZocgwMx/hjj6TydIKltWgK/n2zY1EAa4OnvqHapEmNTgYR97X0z7WXoYimrMuMg635mU/Q= X-Received: by 2002:a17:90b:2dc3:b0:2ee:94d1:7a89 with SMTP id 98e67ed59e1d1-2f452dfcc91mr80344245a91.1.1736099072647; Sun, 05 Jan 2025 09:44:32 -0800 (PST) MIME-Version: 1.0 References: <CYN5Y9C66IW1.3AAYN9I2U5T2B@HIDDEN> In-Reply-To: <CYN5Y9C66IW1.3AAYN9I2U5T2B@HIDDEN> From: Jim Meyering <jim@HIDDEN> Date: Sun, 5 Jan 2025 09:44:20 -0800 Message-ID: <CA+8g5KH6e8u-iv=SrRYUC4jj8=_yLXvjzSHmXUa6sCvvTWWCTQ@HIDDEN> Subject: Re: [bug-diffutils] bug#68695: Please, fix documentation on whitespace in pathnames To: =?UTF-8?Q?Mat=C4=9Bj_Cepl?= <mcepl@HIDDEN> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.2 (/) X-Debbugs-Envelope-To: 68695 Cc: 68695 <at> debbugs.gnu.org, Andreas Gruenbacher <agruen@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.8 (/) On Wed, Jan 24, 2024 at 11:16=E2=80=AFAM Mat=C4=9Bj Cepl <mcepl@HIDDEN> wr= ote: > https://www.gnu.org/software/diffutils/manual/html_node/Unusual-File-Name= s.html#Unusual%20File%20Names > still contains rather disturbing information, that diffutils are > incapable working with space in filenames/dirnames. I was just > deciding to stop using quilt because of that information, when I > was told clearly, that just the documentation is obsolete. Could > somebody fix that page, please? Thank you for reporting that. Here's the current text: When a file name contains an unusual character like a newline or white space, =E2=80=98diff -r=E2=80=99 generates a patch that =E2=80=98patch=E2= =80=99 cannot parse. The problem is with format of =E2=80=98diff=E2=80=99 output, not just with =E2= =80=98patch=E2=80=99, because with odd enough file names one can cause =E2=80=98diff=E2=80=99 to generate= a patch that is syntactically correct but patches the wrong files. The format of =E2=80=98diff=E2=80=99 output should be extended to handle all possible fil= e names. GNU diff's format now accommodates file names containing unusual characters, GNU patch still fails to parse the resulting diff. Here's a small demo: This shows that the output format of diff -u **does** work with a newline-afflicted file name: $ f=3D$'a\na'; echo > "$f"; :>b; diff -u "$f" b --- "a\na" 2025-01-05 09:32:36.678894920 -0800 +++ b 2025-01-05 09:32:36.678894920 -0800 @@ -1 +0,0 @@ - Even "diff -r" encodes the unusually-named file: $ mkdir -p 1 2; a=3D$'a\na'; echo > "1/$a"; :>"2/$a"; diff -r 1 2 diff -r "1/a\na" "2/a\na" 1d0 < However, even the latest upstream version of GNU patch (v2.7.6-202-g5bac274) cannot deal such an encoded file name: $ f=3D$'a\na'; echo > "$f"; :>b; diff -u "$f" b |patch -R patch: **** quoted string "a\n..." contains newline So at the very least, I'll adjust the documentation to reflect the above. Hoping that I can also soon say that upstream GNU patch handles these encoded names.
bug-diffutils@HIDDEN:bug#68695; Package diffutils.
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Date: Wed, 24 Jan 2024 19:55:02 +0100
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Subject: Please, fix documentation on whitespace in pathnames
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https://www.gnu.org/software/diffutils/manual/html_node/Unusual-File-Names.=
html#Unusual%20File%20Names
still contains rather disturbing information, that diffutils are
incapable working with space in filenames/dirnames. I was just
deciding to stop using quilt because of that information, when I
was told clearly, that just the documentation is obsolete. Could
somebody fix that page, please?
Thank you,
Mat=C4=9Bj Cepl
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http://matej.ceplovi.cz/blog/, @mcepl@HIDDEN
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Matěj Cepl <mcepl@HIDDEN>:bug-diffutils@HIDDEN.
Full text available.bug-diffutils@HIDDEN:bug#68695; Package diffutils.
Full text available.
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