run-tests: use $HGTEST_RUN_TESTS_PURE test-run-tests and test-hghave call run-tests; if you don't have a working build environment, and you are trying to use --pure, then if they don't use --pure or --with-hg, they'll break.

fixbundle() {
    grep -v 'saving bundle' | grep -v 'saved backup' | \
        grep -v added | grep -v adding | \
        grep -v "unable to find 'e' for patching" | \
        grep -v "e: No such file or directory"
}