Re: emsetup bug
Neil Williams wrote:
On Thu, 01 Feb 2007 19:33:02 -0500
Jim Heck <jsurf@heckheck.com> wrote:
I first instrument the code with some prints to show that the
conditional inside the find_latest_gcc never gets entered. By my
analysis, this is due to the fact that in the regexp, the grouping
([0-9\.\-]*) is followed by $. The first part will match the gcc
numeric version including a trailing (or inclusive) -. Next comes the
$, which matches only the end of line, so the pattern never matches any
package name and $choice remains 0.
Jim, I think your problems may come down to this part of the apt-cross
manpage:
-u|--update
Force the user-specific apt-cross cache to be updated. Note
that all sources for this suite on the specified architecture will be
erased before the package cache is updated. If /etc/apt/sources.list
does not contain a source for this suite, the updated cache for this
suite will be empty. Use -m|--mirror to specify a source to be added to
whatever sources are available for this suite in /etc/apt/sources.list.
Note the bit about "if sources.list does not contain a source for this
suite". Can you confirm if this could be your problem? I can then look
at fixing that in apt-cross 0.0.6.
emdebian-tools doesn't use the --mirror functionality within apt-cross
- if you have been relying on that, this would result in empty cache
files and $choice being set to zero.
--
Neil, I now understand the logic of your regexp. You are matching in
the conditional for specifically the gcc-4.1 package name. I now
understand why you have the '-' in the grouping (so that the other
gcc-4.1-<blah> package names don't match) and the '$' right after the
grouping. I understand that your expression will match and have a
numeric $1 for a package name like gcc-4.1.
OK.
I'm not sure why my system isn't giving me any such package name for the
architecture specific cache. I have switched back to the original
Tools.pm file. I tried all your suggestions from the last posting
without success. I have one suspicion, I am behind a proxy server, and
I notice that my .dpkg-cross/apt.conf-unstable file is being rewritten
each time I run ' apt-cross -v -a powerpc -S unstable -u'. This
effectively erases the proxy line I have that allows apt to work
properly. Could this be the reason my architecture specific apt-cache
is empty?
Thanks for all your time looking into this. I'm more than happy to
provide you with any debugging information you need, and I don't want to
be a tax on your time if this is my own issue (if you think so, just say
so, my next step was going to be to try all this on a fresh Ubuntu
install, perhaps from a place where I don't need the proxy server).
Thanks,
-Jim
Here are the results of the specific tests
------------------------------------ The contents of my sources.list,
which I apt-get update
androcross:/home/jh150702# cat /etc/apt/sources.list
deb http://www.emdebian.org/debian unstable main
deb-src http://www.emdebian.org/debian unstable main
deb http://mirrors.ircam.fr/pub/debian/ unstable main
deb-src http://mirrors.ircam.fr/pub/debian/ unstable main
androcross:/home/jh150702# apt-get update
Get:1 http://mirrors.ircam.fr unstable Release.gpg [378B]
Ign http://www.emdebian.org unstable Release.gpg
Get:2 http://mirrors.ircam.fr unstable Release [79.6kB]
Hit http://www.emdebian.org unstable Release
Ign http://www.emdebian.org unstable/main Packages/DiffIndex
Ign http://www.emdebian.org unstable/main Sources/DiffIndex
Ign http://www.emdebian.org unstable/main Packages
Ign http://www.emdebian.org unstable/main Sources
Get:3 http://mirrors.ircam.fr unstable/main Packages/DiffIndex [2038B]
Hit http://www.emdebian.org unstable/main Packages
Hit http://www.emdebian.org unstable/main Sources
Get:4 http://mirrors.ircam.fr unstable/main Sources/DiffIndex [2023B]
Fetched 83.6kB in 3s (26.5kB/s)
Reading package lists... Done
------------------------------------ Clean up .dpkg-cross before trying
anything
androcross:/home/jh150702# rm -rf ~/.dpkg-cross/
androcross:/home/jh150702# exit
exit
androcross: /home/jh150702
$ rm -rf ~/.dpkg-cross/
androcross: /home/jh150702
------------------------------------ I run apt-cross, which overwrites
my proxy line.
$ apt-cross -v -a powerpc -S unstable -u
Updating unstable on powerpc using /etc/apt/sources.list
recreating /home/jh150702/.dpkg-cross/apt.conf-unstable
recreating /home/jh150702/.dpkg-cross/sources.unstable
androcross: /home/jh150702
------------------------------------ I run apt-get. I also tried this
with my proxy line added to the apt.conf-unstable file before running
apt-get here, but it didn't help
$ apt-get -v -o Apt::Architecture=powerpc -c
~/.dpkg-cross/apt.conf-unstable update
apt 0.6.46.4 for linux i386 compiled on Dec 4 2006 17:48:09
Supported modules:
*Ver: Standard .deb
*Pkg: Debian dpkg interface (Priority 30)
S.L: 'deb' Standard Debian binary tree
S.L: 'deb-src' Standard Debian source tree
Idx: Debian Source Index
Idx: Debian Package Index
Idx: Debian dpkg status file
androcross: /home/jh150702
------------------------------------ This is my listing of jim.pl
$ cat ./jim.pl
#!/usr/bin/perl -w
my $arch = "powerpc";
my $suite = "unstable";
my $dpkg_cross_dir = "/home/jh150702/.dpkg-cross/";
my $result = `fakeroot apt-cache -o Apt::Architecture=$arch -c
$dpkg_cross_dir/apt.conf-$suite pkgnames gcc`;
my @list = split (/\n/, $result);
my $choice = 0;
foreach my $line (@list)
{
print "$line\n";
if ($line =~ /gcc-([0-9\.\-]*)$/)
{
if ($1 > $choice) { $choice = $1; }
print "1 = $1\n";
}
}
print "final choice = $choice\n";
androcross: /home/jh150702
------------------------------------ Here I show how jim.pl doesn't find
a gcc-4.1
$ ./jim.pl
gcc-4.1-powerpc-linux-gnu
gcc-3.4-base
gcc
gcc-4.1-powerpc-linux-gnu-base
gcc-2.95-powerpc-cross
gcc-4.1-source
final choice = 0
androcross: /home/jh150702
------------------------------------ Here I show my mirror really does
have gcc-4.1, at least for x86 (I checked for powerpc too via webbrowser)
$ apt-cache pkgnames gcc |grep 4.1
gcc-4.1-doc
gcc-4.1-powerpc-linux-gnu
gcc-4.1-mips-linux-gnu
gcc-4.1-ia64-linux-gnu-base
gcc-4.1-base
gcc-4.1-mipsel-linux-gnu-base
gcc-4.1-m68k-linux-gnu
gcc-4.1-sparc-linux-gnu-base
gcc-4.1-alpha-linux-gnu
gcc-4.1-sparc-linux-gnu
gcc-4.1
gcc-4.1-mipsel-linux-gnu
gcc-4.1-ia64-linux-gnu
gcc-4.1-mips-linux-gnu-base
gcc-4.1-arm-linux-gnu
gcc-4.1-arm-linux-gnu-base
gcc-4.1-s390-linux-gnu
gcc-4.1-locales
gcc-4.1-powerpc-linux-gnu-base
gcc-4.1-source
gcc-4.1-m68k-linux-gnu-base
androcross: /home/jh150702
------------------------------------ Here I show how my
.dpkg-cross/apt.conf-unstable is being overwritten
androcross: /home/jh150702
$ cat ./.dpkg-cross/apt.conf-unstable
Dir "/home/jh150702/.dpkg-cross/"
{
Etc "/home/jh150702/.dpkg-cross/"
{
SourceList "sources.unstable";
};
State "unstable/";
Cache "unstable/";
};
androcross: /home/jh150702
$ echo 'Acquire::http::Proxy "http://129.147.62.25:8080";;' >>
.dpkg-cross/apt.conf-unstable
androcross: /home/jh150702
$ cat ./.dpkg-cross/apt.conf-unstableDir "/home/jh150702/.dpkg-cross/"
{
Etc "/home/jh150702/.dpkg-cross/"
{
SourceList "sources.unstable";
};
State "unstable/";
Cache "unstable/";
};
Acquire::http::Proxy "http://129.147.62.25:8080";;
androcross: /home/jh150702
$ apt-cross -v -a powerpc -S unstable -uUpdating unstable on powerpc
using /etc/apt/sources.list
recreating /home/jh150702/.dpkg-cross/apt.conf-unstable
recreating /home/jh150702/.dpkg-cross/sources.unstable
androcross: /home/jh150702
$ cat ./.dpkg-cross/apt.conf-unstable
Dir "/home/jh150702/.dpkg-cross/"
{
Etc "/home/jh150702/.dpkg-cross/"
{
SourceList "sources.unstable";
};
State "unstable/";
Cache "unstable/";
};
androcross: /home/jh150702
$
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