Re: [gentoo-user] profile-sync-daemon "bad substitution" at boot

[Alexander Kapshuk]

On Thu, Sep 6, 2018 at 11:18 AM Alexander Kapshuk
<alexander.kapshuk@×××××.com> wrote:
>
> On Thu, Sep 6, 2018 at 10:48 AM Samuraiii <samurai.no.dojo@×××××.com> wrote:
> >
> > On 5.9.2018 21:20, Mick wrote:
> >
> > Hi All,
> >
> > I just noticed a psd error at boot time:
> >
> > /usr/bin/profile-sync-daemon: line 325: ${#DIRArr[@]##*/}: bad substitution
> >
> > Any idea what's brought this about?
> >
> > Hi,
> >
> > my bet is that your /bin/sh != /bin/bash and /usr/bin/profile-sync-daemon starts with #!/bin/sh.
> >
> > The other way around /usr/bin/profile-sync-daemon contains bashishms.
> >
> > You can try (as a test) to change #!/bin/sh for #!/bin/bash...
> >
> > S
>
> The shebang in the master repository is '#!/bin/bash'.
> https://raw.githubusercontent.com/graysky2/profile-sync-daemon/master/common/profile-sync-daemon.in
>
> The error message is a shell parameter expansion syntax error, which
> comprises two different expansion constructs referenced below.
> ${#parameter}
> String Length.
>
> ${parameter##[word]}
> Remove Largest Prefix Pattern.
>
> See section 2.6.2 Parameter Expansion,
> http://pubs.opengroup.org/onlinepubs/9699919799/nframe.html.
>
> The script in the master repository referenced above does not contain
> the line in question. It has '${#DIRArr[@]/}' and '${DIRArr[@]##*/}'.

This appears to have been reported as a bug in Debian [1]
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=839049
And applied upstream [2].
https://github.com/graysky2/profile-sync-daemon/pull/185/files/654f5359abfe7aab2e1616dd74c8ba0f76ce4ab4