# Invoke the system hg installation (rather than the local hg version being

# tested).

#

# We want to use the hg version being tested when interacting with the test

# repository, and the system hg when interacting with the mercurial source code

# repository.

#

# The mercurial source repository was typically orignally cloned with the

# system mercurial installation, and may require extensions or settings from

# the system installation.

syshg () {

    (

        syshgenv

        exec hg "$@"

    )

}

# Revert the environment so that running "hg" runs the system hg

# rather than the test hg installation.

syshgenv () {

    HGPLAIN=1

    export HGPLAIN

}

# Most test-check-* sourcing this file run "hg files", which is not available

# in ancient versions of hg. So we double check if "syshg files" works and

# fallback to hg bundled in the repo.

syshg files -h >/dev/null 2>/dev/null

if [ $? -ne 0 ]; then

    syshg() {

        hg "$@"

    }

    syshgenv() {

        :

    }

fi