#! /bin/bash

# Copyright (c) 2019 Giovanni Bussi

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

export COLUMNS=80

if [ "$GITHUB_ACTIONS" = true ] ; then
    echo "COLUMNS=$COLUMNS" >> "$GITHUB_ENV"
fi

# file to be source at the end of subshell:
export MACPORTS_CI_SOURCEME="$(mktemp)"

(
# start subshell
# this allows to use the script in two ways:
# 1. as ./macports-ci
# 2. as source ./macports-ci
# as of now, choice 2 only changes the env var COLUMNS.

MACPORTS_VERSION=2.6.4
MACPORTS_PREFIX=/opt/local
MACPORTS_SYNC=tarball

action=$1
shift

case "$action" in
(install)

echo "macports-ci: install"

KEEP_BREW=yes

for opt
do
  case "$opt" in
  (--source) SOURCE=yes ;;
  (--binary) SOURCE=no ;;
  (--keep-brew) KEEP_BREW=yes ;;
  (--remove-brew) KEEP_BREW=no ;;
  (--version=*) MACPORTS_VERSION="${opt#--version=}" ;;
  (--prefix=*)  MACPORTS_PREFIX="${opt#--prefix=}" ;;
  (--sync=*)    MACPORTS_SYNC="${opt#--sync=}" ;;
  (*) echo "macports-ci: unknown option $opt"
      exit 1 ;;
  esac
done

if test "$KEEP_BREW" = no ; then
  echo "macports-ci: removing homebrew"
  pushd "$(mktemp -d)"
  curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall > uninstall
  chmod +x uninstall
  ./uninstall --force
  popd
else
  echo "macports-ci: keeping HomeBrew"
fi

echo "macports-ci: prefix=$MACPORTS_PREFIX"

if test "$MACPORTS_PREFIX" != /opt/local ; then
  echo "macports-ci: Installing on non standard prefix $MACPORTS_PREFIX can be only made from sources"
  SOURCE=yes
fi

if test "$SOURCE" = yes ; then
  echo "macports-ci: Installing from source"
else
  echo "macports-ci: Installing from binary"
fi

echo "macports-ci: Sync mode=$MACPORTS_SYNC"

pushd "$(mktemp -d)"

OSX_VERSION="$(sw_vers -productVersion | grep -o '^[0-9][0-9]*\.[0-9][0-9]*')"

if test "$OSX_VERSION" == 10.10 ; then
  OSX_NAME=Yosemite
elif test "$OSX_VERSION" == 10.11 ; then
  OSX_NAME=ElCapitan
elif test "$OSX_VERSION" == 10.12 ; then
  OSX_NAME=Sierra
elif test "$OSX_VERSION" == 10.13 ; then
  OSX_NAME=HighSierra
elif test "$OSX_VERSION" == 10.14 ; then
  OSX_NAME=Mojave
elif test "$OSX_VERSION" == 10.15 ; then
  OSX_NAME=Catalina
else
  echo "macports-ci: Unknown OSX version $OSX_VERSION"
  exit 1
fi

echo "macports-ci: OSX version $OSX_VERSION $OSX_NAME"

MACPORTS_PKG=MacPorts-${MACPORTS_VERSION}-${OSX_VERSION}-${OSX_NAME}.pkg

# this is a workaround needed because binary installer MacPorts-2.6.3-10.12-Sierra.pkg is broken
if [ "$SOURCE" != yes ] && [ "$MACPORTS_PKG" = "MacPorts-2.6.3-10.12-Sierra.pkg" ] ; then
  echo "macports-ci: WARNING $MACPORTS_PKG installer is broken"
  echo "macports-ci: reverting to 2.6.2 installer followed by selfupdate"
  MACPORTS_VERSION=2.6.2
  MACPORTS_PKG=MacPorts-${MACPORTS_VERSION}-${OSX_VERSION}-${OSX_NAME}.pkg
fi

URL="https://distfiles.macports.org/MacPorts"
URL="https://github.com/macports/macports-base/releases/download/v$MACPORTS_VERSION/"

echo "macports-ci: Base URL is $URL"

if test "$SOURCE" = yes ; then
# download source:
  curl -LO $URL/MacPorts-${MACPORTS_VERSION}.tar.bz2
  tar xjf MacPorts-${MACPORTS_VERSION}.tar.bz2
  cd MacPorts-${MACPORTS_VERSION}
# install
  ./configure --prefix="$MACPORTS_PREFIX" --with-applications-dir="$MACPORTS_PREFIX/Applications" >/dev/null &&
    sudo make install >/dev/null
else

# download installer:
  curl -LO $URL/$MACPORTS_PKG
# install:
  sudo installer -verbose -pkg $MACPORTS_PKG -target /
fi

# update:
export PATH="$MACPORTS_PREFIX/bin:$PATH"

echo "PATH=\"$MACPORTS_PREFIX/bin:\$PATH\""  > "$MACPORTS_CI_SOURCEME"

if [ "$GITHUB_ACTIONS" = true ] ; then
    echo "$MACPORTS_PREFIX/bin" >> "$GITHUB_PATH"
fi


SOURCES="${MACPORTS_PREFIX}"/etc/macports/sources.conf

case "$MACPORTS_SYNC" in
(rsync)
  echo "macports-ci: Using rsync"
  ;;
(github)
  echo "macports-ci: Using github"
   pushd "$MACPORTS_PREFIX"/var/macports/sources
   sudo mkdir -p github.com/macports/macports-ports/
   sudo chown -R $USER:admin github.com
   git clone https://github.com/macports/macports-ports.git github.com/macports/macports-ports/
   awk '{if($NF=="[default]") print "file:///opt/local/var/macports/sources/github.com/macports/macports-ports/"; else print}' "$SOURCES" > $HOME/$$.tmp
   sudo mv -f $HOME/$$.tmp "$SOURCES"
   popd
  ;;
(tarball)
  echo "macports-ci: Using tarball"
  awk '{if($NF=="[default]") print "https://distfiles.macports.org/ports.tar.gz [default]"; else print}' "$SOURCES" > $$.tmp
  sudo mv -f $$.tmp "$SOURCES"
  ;;
(*)
  echo "macports-ci: Unknown sync mode $MACPORTS_SYNC"
  ;;
esac

i=1
# run through a while to retry upon failure
while true
do
  echo "macports-ci: Trying to selfupdate (iteration $i)"
# here I test for the presence of a known portfile
# this check confirms that ports were installed
# notice that port -N selfupdate && break is not sufficient as a test
# (sometime it returns a success even though ports have not been installed)
# for some misterious reasons, running without "-d" does not work in some case
  sudo port -d -N selfupdate 2>&1 | grep -v DEBUG | awk '{if($1!="x")print}'
  port info xdrfile > /dev/null && break || true
  sleep 5
  i=$((i+1))
  if ((i>20)) ; then
    echo "macports-ci: Failed after $i iterations"
    exit 1
  fi
done

echo "macports-ci: Selfupdate successful after $i iterations"

dir="$PWD"
popd
sudo rm -fr $dir

;;

(localports)

echo "macports-ci: localports"

for opt
do
  case "$opt" in
  (*) ports="$opt" ;;
  esac
done

if ! test -d "$ports" ; then
  echo "macports-ci: Please provide a port directory"
  exit 1
fi

w=$(which port)

MACPORTS_PREFIX="${w%/bin/port}"

cd "$ports"

ports="$(pwd)"

echo "macports-ci: Portdir fullpath: $ports"
SOURCES="${MACPORTS_PREFIX}"/etc/macports/sources.conf

awk -v repo="file://$ports" '{if($NF=="[default]") print repo; print}' "$SOURCES" > $$.tmp
sudo mv -f $$.tmp "$SOURCES"

portindex

;;

(ccache)
w=$(which port)
MACPORTS_PREFIX="${w%/bin/port}"

echo "macports-ci: ccache"

ccache_do=install

for opt
do
  case "$opt" in
  (--save) ccache_do=save ;;
  (--install) ccache_do=install ;;
  (*) echo "macports-ci: ccache: unknown option $opt"
      exit 1 ;;
  esac
done


case "$ccache_do" in
(install)
# first install ccache
sudo port -N install ccache
# then tell macports to use it
CONF="${MACPORTS_PREFIX}"/etc/macports/macports.conf
awk '{if(match($0,"configureccache")) print "configureccache yes" ; else print }' "$CONF" > $$.tmp
sudo mv -f $$.tmp "$CONF"

# notice that cache size is set to 512Mb, same as it is set by Travis-CI on linux
# might be changed in the future
test -f "$HOME"/.macports-ci-ccache/ccache.conf &&
  sudo rm -fr "$MACPORTS_PREFIX"/var/macports/build/.ccache &&
  sudo mkdir -p "$MACPORTS_PREFIX"/var/macports/build/.ccache &&
  sudo cp -a "$HOME"/.macports-ci-ccache/* "$MACPORTS_PREFIX"/var/macports/build/.ccache/ &&
  sudo echo "max_size = 512M" > "$MACPORTS_PREFIX"/var/macports/build/.ccache/ccache.conf &&
  sudo chown -R macports:admin "$MACPORTS_PREFIX"/var/macports/build/.ccache

;;
(save)

sudo rm -fr "$HOME"/.macports-ci-ccache
sudo mkdir -p "$HOME"/.macports-ci-ccache
sudo cp -a "$MACPORTS_PREFIX"/var/macports/build/.ccache/* "$HOME"/.macports-ci-ccache/

esac

CCACHE_DIR="$MACPORTS_PREFIX"/var/macports/build/.ccache/ ccache -s

;;

(*)
echo "macports-ci: unknown action $action"

esac

)

# allows setting env var if necessary:
source "$MACPORTS_CI_SOURCEME"