GNU bug report logs - #28241
man page in r-minimal contains timestamp

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ricardo Wurmus <rekado <at> elephly.net>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#28241: closed (man page in r-minimal contains timestamp)
Date: Mon, 28 Aug 2017 13:54:02 +0000

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Your message dated Mon, 28 Aug 2017 15:53:39 +0200
with message-id <87k21nhk7w.fsf <at> elephly.net>
and subject line Re: bug#28241: man page in r-minimal contains timestamp
has caused the debbugs.gnu.org bug report #28241,
regarding man page in r-minimal contains timestamp
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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28241: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=28241
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From: Ricardo Wurmus <rekado <at> elephly.net>
To: "'bug-guix\@gnu.org'" <bug-guix <at> gnu.org>
Subject: man page in r-minimal contains timestamp
Date: Sat, 26 Aug 2017 14:59:47 +0200

The compressed man page at “share/man/man1/R.1.gz” provided by r-minimal
contains a time-dependent string.

Comparing the uncompressed man pages built at different times on
different machines shows me this:

--8<---------------cut here---------------start------------->8---
diff /tmp/berlin/share/man/man1/R.1  /tmp/hydra/share/man/man1/R.1
2c2
< .TH R "1" "July 2017" "R 3.4.0" FSF
---
> .TH R "1" "May 2017" "R 3.4.0" FSF
--8<---------------cut here---------------end--------------->8---

The man page is created with a rule in “doc/Makefile.in”:

     @$(HELP2MAN) --include=$(srcdir)/R.aux --no-info --output=R.1 \
       --name="a language for data analysis and graphics" \
       $(top_builddir)/bin/R

“doc/R.aux” does not contain a timestamp, nor does the help output of R
itself.  Is help2man to blame here?

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

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From: Ricardo Wurmus <rekado <at> elephly.net>
To: 28241-done <at> debbugs.gnu.org
Subject: Re: bug#28241: man page in r-minimal contains timestamp
Date: Mon, 28 Aug 2017 15:53:39 +0200

Ricardo Wurmus <rekado <at> elephly.net> writes:

> Ricardo Wurmus <rekado <at> elephly.net> writes:
>
>> Is SOURCE_DATE_EPOCH not set at the time help2man runs?  “r-minimal”
>> uses the gnu-build-system, which has a build phase set-SOURCE-DATE-EPOCH
>> that sets SOURCE_DATE_EPOCH to 1.
>>
>> Where is this lost?
>
> Simple: R simply doesn’t use our help2man.  It comes with
> tools/help2man.pl, which does not respect SOURCE_DATE_EPOCH.
>
> Overwriting the HELP2MAN variable causes the tests to fail, so I need to
> investigate how these versions differ.

This is now fixed with commit 174fbd5f3b2f286cf06e58787853db6b8f0f5b35.

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

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