#!/bin/sh
#
# mkgdaldist.sh - prepares GDAL source distribution package

set -eu

if [ -z ${MAKE+x} ]; then
    MAKE="make"
fi

if [ -z ${PYTHON+x} ]; then
    PYTHON="python3"
fi

# Doxygen 1.7.1 has a bug related to man pages. See https://trac.osgeo.org/gdal/ticket/6048
doxygen --version | xargs ${PYTHON} -c "import sys; v = sys.argv[1].split('.'); v=int(v[0])*10000+int(v[1])*100+int(v[2]); sys.exit(v < 10704)"
rc=$?
if test $rc != 0; then
    echo "Wrong Doxygen version. 1.7.4 or later required"
    exit $rc;
fi

gpg2 --version >/dev/null || (echo "gpg2 not available"; exit 1)

GITURL="https://github.com/OSGeo/gdal"

if [ $# -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ] ; then
  echo "Usage: mkgdaldist.sh <version> [-date date] [-branch branch|-tag tag] [-rc n] [-url url]"
  echo " <version> - version number used in name of generated archive."
  echo " -date     - date of package generation, current date used if not provided"
  echo " -branch   - path to git branch, master is used if not provided"
  echo " -tag      - path to git tag"
  echo " -rc       - gives a release candidate id to embed in filenames"
  echo " -url      - git url, ${GITURL} if not provided"
  echo "Example: mkgdaldist.sh 2.2.4 -branch v2.2.4 -rc RC1"
  echo "or       mkgdaldist.sh 2.3.0beta1 -tag v2.3.0beta1"
  exit
fi

#
# Processing script input arguments
#
GDAL_VERSION=$1
COMPRESSED_VERSION=$(echo "$GDAL_VERSION" | tr -d .)

forcedate=no
if test "$#" -ge 3; then
  if test "$2" = "-date" ; then
    forcedate=$3
    shift
    shift
  fi
fi

BRANCH="master"
if test "$#" -ge 3; then
  if test "$2" = "-branch"; then
    BRANCH=$3
    shift
    shift
  fi
fi

TAG=""
if test "$#" -ge 3; then
  if test "$2" = "-tag"; then
    TAG=$3
    shift
    shift
 fi
fi

RC=""
if test "$#" -ge 3; then
  if test "$2" = "-rc"; then
    RC=$3
    shift
    shift
  fi
fi

if test "$#" -ge 3; then
  if test "$2" = "-url"; then
    GITURL=$3
    shift
    shift
  fi
fi

#
# Checkout GDAL sources from the repository
#
echo "* Downloading GDAL sources from git..."
rm -rf dist_wrk
mkdir dist_wrk
cd dist_wrk

if test "$TAG" != ""; then
   echo "Generating package '${GDAL_VERSION}' from '${TAG}' tag"
   git clone --depth 1 --branch "${TAG}" "${GITURL}" gdal
else
   echo "Generating package '${GDAL_VERSION}' from '${BRANCH}' branch"
   git clone -b "${BRANCH}" --single-branch "${GITURL}" gdal --depth 1
fi

if [ ! -d gdal ] ; then
	echo "git clone reported an error ... abandoning mkgdaldist"
	cd ..
	rm -rf dist_wrk
	exit
fi

cd gdal

if test "$TAG" != ""; then
   echo "Checkout tag $TAG"
   git checkout "$TAG" || exit 1
fi

#
# Make some updates and cleaning
#
if test "$forcedate" != "no" ; then
  echo "* Updating release date..."
  echo "Forcing Date To: $forcedate"
  rm -f gcore/gdal_new.h
  sed -e "/define GDAL_RELEASE_DATE/s/20[0-9][0-9][0-9][0-9][0-9][0-9]/$forcedate/" gcore/gdal.h > gcore/gdal_new.h
  mv gcore/gdal_new.h gcore/gdal.h
fi

echo "* Cleaning .git, .github .gitignore, ci under $PWD..."
rm -rf .git
rm -f .gitignore
rm -rf .github
rm -rf ci

CWD=${PWD}

#
# Generate man pages and doc snapshot
#
echo "* Generating man pages and doc snapshot..."

mkdir cmake-build-doc
cmake -DCMAKE_BUILD_TYPE=Debug \
      -DGDAL_BUILD_OPTIONAL_DRIVERS=OFF \
      -DOGR_BUILD_OPTIONAL_DRIVERS=OFF \
      -DBUILD_APPS=ON \
      -DBUILD_TESTING=OFF \
      -DBUILD_PYTHON_BINDINGS=ON \
      -DBUILD_JAVA_BINDINGS=ON \
      -DGDAL_JAVA_GENERATE_JAVADOC=ON \
      -DGDAL_ENABLE_DRIVER_GTI=ON \
      -DOGR_ENABLE_DRIVER_GPKG=ON \
      -DOGR_ENABLE_DRIVER_OPENFILEGDB=ON \
      -B cmake-build-doc -S .
cmake --build cmake-build-doc --target man doczip -j$(nproc)
mkdir -p man/man1
cp cmake-build-doc/doc/build/man/*.1 man/man1
cp cmake-build-doc/doc/gdal*doc.zip "${CWD}/../.."
rm -rf cmake-build-doc

if test ! -f "man/man1/gdalinfo.1"; then
    echo " man build failed"
fi

cd "$CWD"

echo "* Cleaning doc/, fuzzers/ and perftests/ under $CWD..."
rm -rf doc
rm -rf fuzzers
rm -rf perftests

#
# Make distribution packages
#
echo "* Making distribution packages..."
rm -f VERSION
echo "$GDAL_VERSION" > VERSION

cd ..
mv gdal/autotest "gdalautotest-${GDAL_VERSION}"
mv gdal "gdal-${GDAL_VERSION}"

rm -f "../gdal-${GDAL_VERSION}${RC}.tar.xz" "../gdal-${GDAL_VERSION}${RC}.tar.gz" "../gdal${COMPRESSED_VERSION}${RC}.zip"

tar cf "../gdal-${GDAL_VERSION}${RC}.tar" "gdal-${GDAL_VERSION}"
xz -k9e "../gdal-${GDAL_VERSION}${RC}.tar"
gzip -9 "../gdal-${GDAL_VERSION}${RC}.tar"
zip -qr "../gdal${COMPRESSED_VERSION}${RC}.zip" "gdal-${GDAL_VERSION}"

rm -f "../gdalautotest-${GDAL_VERSION}${RC}.tar.gz"
rm -f "../gdalautotest-${GDAL_VERSION}${RC}.zip"
tar czf "../gdalautotest-${GDAL_VERSION}${RC}.tar.gz" "gdalautotest-${GDAL_VERSION}"
zip -qr "../gdalautotest-${GDAL_VERSION}${RC}.zip" "gdalautotest-${GDAL_VERSION}"

echo "* Generating MD5 sums ..."

MY_OSTYPE=$(uname -s)
if test "$MY_OSTYPE" = "Darwin" ; then
MD5=md5
else
MD5=md5sum
fi

cd ..
$MD5 "gdal-${GDAL_VERSION}${RC}.tar.xz" > "gdal-${GDAL_VERSION}${RC}.tar.xz.md5"
$MD5 "gdal-${GDAL_VERSION}${RC}.tar.gz" > "gdal-${GDAL_VERSION}${RC}.tar.gz.md5"
$MD5 "gdal${COMPRESSED_VERSION}${RC}.zip" > "gdal${COMPRESSED_VERSION}${RC}.zip.md5"

echo "* Signing..."
for file in "gdal-${GDAL_VERSION}${RC}.tar.xz" "gdal-${GDAL_VERSION}${RC}.tar.gz" "gdal${COMPRESSED_VERSION}${RC}.zip"; do \
  gpg2 --output ${file}.sig --detach-sig $file ; \
done

for file in "gdal-${GDAL_VERSION}${RC}.tar.xz" "gdal-${GDAL_VERSION}${RC}.tar.gz" "gdal${COMPRESSED_VERSION}${RC}.zip"; do \
  gpg2 --verify ${file}.sig $file ; \
done

echo "* Cleaning..."
rm -rf dist_wrk

echo "*** The End ***"
