Modify qpush/qpop idempotent operations to return success Modify qpush/qpop such that idempotent instances of the operations return success. That is, repeated qpush -a, qpop -a, qpush patch-name or qpop patch-name will return success. The end goal of each of these operations is to reach a particular state. Whether or not the patches were already applied does not affect that state or operation status. Likewise, be careful to retain the error status on a qpush/qpop without arguments when the end/beginning of the series has been reached.

#!/bin/sh

hg init repo
cd repo
touch foo
hg add foo
for i in 0 1 2 3 4 5 6 7 8 9 10 11; do
    echo "foo-$i" >> foo
    hg ci -m "foo-$i" -d "0 0"
done

for out in "%nof%N" "%%%H" "%b-%R" "%h" "%r"; do
    echo "# foo-$out.patch"
    hg export -v -o "foo-$out.patch" 2:tip
done