Hello Alexander,
On Tue, Apr 01, 2014 at 11:24:52AM +0200, Alexander Stein wrote:
> On Tuesday 01 April 2014 10:24:41, Uwe Kleine-König wrote:
> > On Mon, Mar 31, 2014 at 07:08:53PM +0200, Alexander Stein wrote:
> > > On Saturday 29 March 2014, 10:28:54 wrote Michael Olbrich:
> > > > On Thu, Mar 27, 2014 at 08:16:15AM +0100, Alexander Stein wrote:
> > > > > I tried to use git ptx-patches fromwithin a package and noticed it
> > > > > doesn't work.
> > > > > I could track down the problem to this command (from
> > > > > scripts/git-ptx-patches):
> > > > > > man git-format-patch | grep -q -e --notes
> > > > >
> > > > > Executing this command manually results in this error message:
> > > > > > Error executing formatting or display command.
> > > > > > System command (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2
> > > > > > -c -d '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl
> > > > > > | /usr/bin/nroff -mandoc | less) exited with status 141.
> > > > > > No manual entry for git-format-patch
> > > > >
> > > > > Interestingly executing
> > > > > > (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2 -c -d
> > > > > > '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl |
> > > > > > /usr/bin/nroff -mandoc | less) | grep -q -e --notes
> > > > > works as expected. I have no idea what's wrong here.
> > > >
> > > > Maybe this is caused by some aliases or interactive/non-ineractive
> > > > magic.
> > > > Does it help to replace "man git-format-patch" with "git format-patch
> > > > --help" or "man -P cat git-format-patch"?
> > >
> > > Unfortunately no :(
> > >
> > > git format-patch --help | grep -q -e --notes
> > > Error executing formatting or display command.
> > > System command (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2 -c -d
> > > '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl |
> > > /usr/bin/nroff -mandoc | /usr/bin/less) exited with status 141.
> > > No manual entry for git-format-patch
> > >
> > > $ man -P cat git-format-patch | grep -q -e --notes
> > > Error executing formatting or display command.
> > > System command (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2 -c -d
> > > '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl |
> > > /usr/bin/nroff -mandoc | cat) exited with status 141.
> > > No manual entry for git-format-patch
> > Do you have git-format-patch's manpage, i.e. does
> >
> > man git-format-patch
> >
> > work?
>
> Yep, that man page is installed.
>
> > On bash, what happens on:
> >
> > $ man -P cat git-format-patch | grep -q -e --notes
> > $ echo ${PIPESTATUS[@]}
>
> $ man -P cat git-format-patch | grep -q -e --notes
> Error executing formatting or display command.
> System command (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2 -c -d
> '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl |
> /usr/bin/nroff -mandoc | cat) exited with status 141.
> No manual entry for git-format-patch
> $ echo ${PIPESTATUS[@]}
> 1 0
>
> > Does
> >
> > strace -f -o /tmp/lala man -P cat git-format-patch | grep -q -e --notes
> >
> > give any insights (e.g. where does the 141 come from?)
>
> Somewhat. The 'culprit' is grep so far:
> $ man -P cat git-format-patch | grep -q -e --notes
> Error executing formatting or display command.
> System command (cd "/usr/share/man" && (echo ".pl 11i"; /bin/bzip2 -c -d
> '/usr/share/man/man1/git-format-patch.1.bz2') | /usr/bin/gtbl |
> /usr/bin/nroff -mandoc | cat) exited with status 141.
> No manual entry for git-format-patch
> $ man -P cat git-format-patch | grep -e --notes
> [--[no-]cover-letter] [--quiet] [--notes[=<ref>]]
> --notes[=<ref>]
>
> It seems grep slightly behaves differently when used with -q. It closes STDIN
> as soon as it detects the pattern.
> But the closed pipe results in an EPIPE returned from write(2) within cat
> which exits with an error.
My man (from the Debian package man-db 2.6.2-1) doesn't show this
behaviour. Is your version older or newer?
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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