There does not seem to be any official or convenient API for CGit to export/clone all its repositories.
You can try those alternatives:
curl -s http://git.suckless.org/ |
xml sel -N x="http://www.w3.org/1999/xhtml" -t -m "//x:a" -v '@title' -n |
grep . |
while read repo
do git clone git://git.suckless.org/$repo
done
Or:
curl -s http://git.suckless.org/ | xml pyx | awk '$1 == "Atitle" { print $2 }'
Or:
curl -s http://git.suckless.org/ | xml pyx | awk '$1 == "Atitle" { printf("git clone %s\n",$2) }' | s
I suspect this work for one page of Git repositories as listed by CGit: you might still have to repeat that for all subsequent Git repositories pages.