bee-query: find now packages with special characters

[david]

at the moment installed on sigusr2 for testing

schrader@bacon:~/git_zeug/bee
[bee-query-with-special-character]$ sudo bee query /usr/include/gpgme++/
schrader@bacon:~/git_zeug/bee

schrader@sigusr2:~
$ sudo bee query /usr/include/gpgme++/
gpgme-1.16.0-0.x86_64

[pmenzel]

So up to know, extended regular regressions were supported, which would not work anymore. No idea, what behavior is desired, but it should be mentioned.

[donald]

This patch no longer appiles. However, the current code might be worse:

    ${BEEFLOCK} --shared ${BEECACHE_INVENTORY} \
        ${BEE_LIBEXECDIR}/bee/beeindextr ${BEECACHE_INVENTORY} | \
        grep -- "$file_pattern" | \
        sort | \
        while read -r pkg mtime uid gid mode size md5 filename; do
            if [[ $filename =~ $file_pattern ]]; then
                if [ "$pkg" != "$last_pkg" ]; then
                    echo $pkg
                    last_pkg="$pkg"
                fi
                printf "    %s\n" "$filename"
            fi
        done

so the pattern is used twice. Once with grep, which means a (non-extended) regular expression and once with [[ =~ ]] which is an extended regular expression. So, strangely, now bee query /usr/include/gpgme++ works but bee query /usr/include/gpgme++/ doesn't.