#!/bin/sh

. ./travis-common.sh

# ---------------------------------------------------------------------
# Bootstrap cabal, to verify bootstrap.sh script works.
# ---------------------------------------------------------------------

bootstrap_jobs="-j"

(cd cabal-install && timed env EXTRA_CONFIGURE_OPTS="" ./bootstrap.sh $bootstrap_jobs --no-doc)
timed $HOME/.cabal/bin/cabal --version
PATH=$HOME/.cabal/bin:$PATH

# ---------------------------------------------------------------------
# Verify that installation from tarball works.
# ---------------------------------------------------------------------

# The following scriptlet checks that the resulting source distribution can be
# built & installed.
install_from_tarball() {
   SRC_NAME=$(cabal info . | awk '{print $2;exit}') ;
   SRC_TGZ="$SRC_NAME.tar.gz"
   SRC_PATH="$TRAVIS_BUILD_DIR/dist-newstyle/sdist/$SRC_TGZ"
   export SRC_TGZ
   if [ -f "$SRC_PATH" ]; then
      tar xzf $SRC_PATH -C /tmp;
      cd /tmp/$SRC_NAME;
      cabal build --force-reinstalls $jobs all -v2;
   else
      echo "expected '$TRAVIS_BUILD_DIR/dist-newstyle/sdist/$SRC_TGZ' not found";
      exit 1;
   fi
}

timed cabal update

# NB: The cabal cleans here hack around an sdist bug where
# the bootstrapped Cabal/cabal-install may be built
# without a Paths_* module available.  Under some situations
# which I have not been able to reproduce except on Travis,
# cabal sdist will incorrectly pick up the left over dist
# directory from the bootstrap and then try to package
# up the Paths module, but to no avail because it is not
# available.  I ran out of patience trying to debug this
# issue, and it is easy enough to work around: clean first.

echo Cabal
(cd Cabal && timed cabal clean) || exit $?
(cd Cabal && timed cabal sdist) || exit $?
(cd Cabal && timed install_from_tarball) || exit $?

echo cabal-install
(cd cabal-install && timed cabal clean) || exit $?
(cd cabal-install && timed cabal sdist) || exit $?
# I don't know how to fix this exactly right now.
#(cd cabal-install && timed install_from_tarball) || exit $?