#! /bin/sh
# Script to build release-archives with
#

version=$1

if [ -z "$version" ]; then
  echo "Specify a version number!"
  exit
fi

libversion="$version"

major=`echo $libversion |cut -d. -f1 | sed -e "s/[^0-9]//g"`
minor=`echo $libversion |cut -d. -f2 | sed -e "s/[^0-9]//g"`
patch=`echo $libversion |cut -d. -f3 | cut -d- -f1 | sed -e "s/[^0-9]//g"`

numeric=`perl -e 'printf("%02x%02x%02x\n", '"$major, $minor, $patch);"`

HEADER=include/libssh2.h

# requires a date command that knows -u for UTC time zone
datestamp=`date -u`

# Replace version number in header file:
sed -e 's/^#define LIBSSH2_VERSION .*/#define LIBSSH2_VERSION "'$libversion'"/g' \
    -e 's/^#define LIBSSH2_VERSION_NUM .*/#define LIBSSH2_VERSION_NUM 0x'$numeric'/g' \
    -e 's/^#define LIBSSH2_VERSION_MAJOR .*/#define LIBSSH2_VERSION_MAJOR '$major'/g' \
    -e 's/^#define LIBSSH2_VERSION_MINOR .*/#define LIBSSH2_VERSION_MINOR '$minor'/g' \
    -e 's/^#define LIBSSH2_VERSION_PATCH .*/#define LIBSSH2_VERSION_PATCH '$patch'/g' \
    -e "s/^#define LIBSSH2_TIMESTAMP .*/#define LIBSSH2_TIMESTAMP \"$datestamp\"/g" \
 $HEADER >$HEADER.dist

echo "libssh2 version $libversion"
echo "libssh2 numerical $numeric"
echo "datestamp $datestamp"

findprog()
{
  file="$1"
  for part in `echo $PATH| tr ':' ' '`; do
    path="$part/$file"
    if [ -x "$path" ]; then
      # there it is!
      return 1
    fi
  done

  # no such executable
  return 0
}

############################################################################
#
# automake is needed to run to make a non-GNU Makefile.in if Makefile.am has
# been modified.
#

if { findprog automake >/dev/null 2>/dev/null; } then
  echo "- Could not find or run automake, I hope you know what you're doing!"
else
  echo "Runs automake --include-deps"
  automake --include-deps Makefile >/dev/null
fi

#######################################################################
#
# Generate the changelog
#
echo "generate NEWS"
git log --pretty=fuller --no-color --date=short --decorate=full -1000 | ./git2news.pl > NEWS.dist

############################################################################
#
# Now run make dist to generate a tar.gz archive
#

echo "make dist"
targz="libssh2-$version.tar.gz"
make -s dist VERSION=$version