# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

DOWNLOAD="https://downloads.sourceforge.net/tcl/tcl${BPM_PKG_VERSION}-src.tar.gz"
FILENAME="${DOWNLOAD##*/}"

# The prepare function is executed in the root of the temp directory
# This function is used for downloading files and putting them into the correct location
prepare() {
  wget "$DOWNLOAD"
  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  cd unix
  
  ./configure --prefix=/usr           \
              --mandir=/usr/share/man \
              --enable-threads        \
              --enable-64bit          \
              --disable-rpath
  make -j1

  # Remove build directory traces
  tclver=8.6
  sed -e "s|${BPM_SOURCE}/unix|/usr/lib|" \
      -e "s|${BPM_SOURCE}|/usr/include|" \
      -i tclConfig.sh

  tdbcver=tdbc1.1.10
  sed -e "s|${BPM_SOURCE}/unix/pkgs/$tdbcver|/usr/lib/$tdbcver|" \
      -e "s|${BPM_SOURCE}/pkgs/$tdbcver/generic|/usr/include|" \
      -e "s|${BPM_SOURCE}/pkgs/$tdbcver/library|/usr/lib/tcl${BPM_PKG_VERSION%.*}|" \
      -e "s|${BPM_SOURCE}/pkgs/$tdbcver|/usr/include|" \
      -i "pkgs/$tdbcver/tdbcConfig.sh"

  itclver=itcl4.3.2
  sed -e "s|${BPM_SOURCE}/unix/pkgs/$itclver|/usr/lib/$itclver|" \
      -e "s|${BPM_SOURCE}/pkgs/$itclver/generic|/usr/include|" \
      -e "s|${BPM_SOURCE}/pkgs/$itclver|/usr/include|" \
      -i "pkgs/$itclver/itclConfig.sh"
}

# The check function is executed in the source directory
# This function is used to run tests to verify the package has been compiled correctly
check() {
  cd unix
  
  make -j1 test
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  cd unix
  
  make DESTDIR="$BPM_OUTPUT" install install-private-headers

  # Create versioned tclsh link
  ln -sf tclsh${BPM_PKG_VERSION%.*} "$BPM_OUTPUT"/usr/bin/tclsh

  # Create versioned libtcl link
  ln -sf libtcl${BPM_PKG_VERSION%.*}.so "$BPM_OUTPUT"/usr/lib/libtcl.so

  # Move man page as it is in conflict with a perl man page
  mv "$BPM_OUTPUT"/usr/share/man/man3/Thread.3 "$BPM_OUTPUT"/usr/share/man/man3/Tcl_Thread.3

  # Install package license
  install -Dm644 ../license.terms "$BPM_OUTPUT"/usr/share/licenses/tcl/license.terms
}