nihify

#!/bin/sh

set -e

libnih_dir="$(dirname "$0")"
src_dir="$PWD"

if [ "$1" = "--help" ] || [ "$#" -gt 1 ]; then
    echo "Usage: nihify [DIR]" 1>&2
    echo "Create symlinks in DIR to libnih components" 1>&2
    echo 1>&2
    echo "If DIR is not specified, the current directory is used" 1>&2
    exit 1
fi

if [ -n "$1" ]; then
    src_dir="$1"
fi

if [ "$libnih_dir" = "$src_dir" ] || [ -f "$src_dir/nihify" ]; then
    echo "nihify must be run from the source you wish to symlink into" 1>&2
    exit 1
fi

if [ ! -f "$src_dir/configure.ac" ]; then
    echo "directory ($src_dir) missing configure.ac" 1>&2
    exit 1
fi

libnih_dir="$(cd "$libnih_dir" && pwd)"
src_dir="$(cd "$src_dir" && pwd)"

[ ! -L "$src_dir/ChangeLog.nih" ] || rm "$src_dir/ChangeLog.nih"

echo "Creating symlink to ChangeLog as ChangeLog.nih"
ln -s "$libnih_dir/ChangeLog" "$src_dir/ChangeLog.nih"


for SYMLINK in nih m4/Makefile.am m4/compiler.m4 m4/linker.m4 m4/misc.m4 \
    	       m4/libs.m4; do
    [ -e "$libnih_dir/$SYMLINK" ]
    [ ! -L "$src_dir/$SYMLINK" ] || rm "$src_dir/$SYMLINK"

    echo "Creating symlink to $SYMLINK"
    ln -s "$libnih_dir/$SYMLINK" "$src_dir/$SYMLINK"
done

if ! grep "^NIH_INIT" "$src_dir/configure.ac" >/dev/null 2>&1; then
    echo
    echo "Remember to add NIH_INIT to configure.ac"
fi