Re: [Emacs-diffs] master efa6f10: .gitignore tweaks

[Paul Eggert]

Dmitry Gutov wrote:
> Where does that convention come from? I wish people didn't use .txt for patches.

Using .txt for attached patches works around a Thunderbird bug noted by Ivan 
Shmakov on this list.  See:

http://bugs.gnu.org/20499#108
https://lists.gnu.org/archive/html/emacs-devel/2015-05/msg00416.html

You can see the problem in the email I'm sending to you now.  It has two 
attachments of identical files with different names, one ending in ".patch" and 
the other in ".txt".

The .patch attachment has a header like this:

Content-Type: text/x-patch;
 name="0045-Prefer-this-to-this-in-doc-strings.patch"
Content-Transfer-Encoding: 8bit
Content-Disposition: attachment;
 filename="0045-Prefer-this-to-this-in-doc-strings.patch"

and contents that start like this:

From f743819b57ef519109c1b9d520d358d19a197086 Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Tue, 19 May 2015 19:08:11 -0700
Subject: [PATCH 045/100] =?UTF-8?q?Prefer=20"this"=20to=20=E2=80=9Cthis?=
 =?UTF-8?q?=E2=80=9D=20in=20doc=20strings?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Here, Thunderbird has given up on worrying about encoding, and is just passing 
it through without specifying encoding.  The contents are another email, which 
has a proper header.  This doesn't conform well to the relevant RFCs, since it's 
a text attachment that isn't ASCII but doesn't declare its charset.


The .txt attachment has a header like this:

Content-Type: text/plain; charset=UTF-8;
 name="0045-Prefer-this-to-this-in-doc-strings.txt"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="0045-Prefer-this-to-this-in-doc-strings.txt"

and contents that start like this:

RnJvbSBmNzQzODE5YjU3ZWY1MTkxMDljMWI5ZDUyMGQzNThkMTlhMTk3MDg2IE1vbiBTZXAg
MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBQYXVsIEVnZ2VydCA8ZWdnZXJ0QGNzLnVjbGEuZWR1

Here, the contents are a base64 representation of exactly the same file as 
before, but Thunderbird has labeled the attachment as UTF-8.  This is more 
likely to work in practice.

0045-Prefer-this-to-this-in-doc-strings.patch
Description: Text Data

0045-Prefer-this-to-this-in-doc-strings.txt
Description: Text document