Bug#579218: lintian: uninitialized value in string eq at /usr/bin/lintian line ...

[Carsten Hey <carsten@debian.org>]

Looks like I found two bugs, #579211 and "does weired things if PATH is
not set" which might be much older.  Workaround for the latter is
simple: "env - PATH=...", so feel to ignore this part of the bug report
if you don't think lintian should work without PATH set.

* Carsten Hey <carsten@debian.org> [2010-04-26 11:58 +0200]:
> I run pbuilder with "exec env - HOME="$HOME" /usr/sbin/pbuilder ..." ...

With lintian 2.4.0 under sid I get:

    $ env - lintian --allow-root --verbose --no-override -I -E --pedantic topgit_0.8-1.1.dsc
    N: Setting up lab in /tmp/XRbHb0ROIB ...
    N: Processing 1 packages...
    N: ----
    N: Processing source package topgit (version 0.8-1.1) ...
    internal error: Command 'sort' not found in  at /usr/share/lintian/lib/Lintian/Command.pm line 207

    warning: could not unpack package to desired level
    warning: skipping check of source package topgit
    N: Removing /tmp/XRbHb0ROIB ...
    Use of uninitialized value in split at /usr/share/perl5/IPC/Run.pm line 1191.
    internal error: Command 'rm' not found in  at /usr/share/lintian/lib/Lintian/Command.pm line 210

    END failed--call queue aborted at /usr/bin/lintian line 1552.
    zsh: exit 2     env - lintian --allow-root --verbose --no-override -I -E --pedantic

lintian 2.3.4 *without* "env -" works as expected, as does with "env - PATH=...", but:

    $ env - lintian --allow-root --verbose --no-override -I -E --pedantic topgit_0.8-1.1.dsc
    N: Setting up lab in /tmp/jy3rREz43k ...
    N: Processing 1 packages...
    N: ----
    N: Processing source package topgit (version 0.8-1.1) ...
    internal error: Command 'sort' not found in  at /usr/share/lintian/lib/Lintian/Command.pm line 207

    warning: could not unpack package to desired level
    warning: skipping check of source package topgit
    N: Removing /tmp/jy3rREz43k ...
    Use of uninitialized value in split at /usr/share/perl5/IPC/Run.pm line 1191.
    internal error: Command 'rm' not found in  at /usr/share/lintian/lib/Lintian/Command.pm line 210

    END failed--call queue aborted at /usr/bin/lintian line 1659.
    zsh: exit 2     env - lintian --allow-root --verbose --no-override -I -E --pedantic

A missing PATH is normally not a problem for perl:

    $ perl -e 'print "$ENV{PATH}\n"; system "chown"'
    /root/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin/X11:/usr/local/bin:/usr/local/sbin:/usr/games
    chown: missing operand
    Try `chown --help' for more information.
    $ env - perl -e 'print "$ENV{PATH}\n";
    system "chown"'

    chown: missing operand
    Try `chown --help' for more information.

Bash, dash and zsh behave similar without $PATH.  I think this is the
fallback path for bash:

    $ strings /bin/bash | grep sbin
    /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin


Carsten