#!/bin/sh

givup() {
	echo $*
	exit 1
}

usage() {
echo "$0 --extname=module [--proto=file] [--stubs=file] [--xml[=file]]"
echo "           [--full-xml] [--no-help] [--assign-params [--string-lens]]"
echo ""
echo "  --extname=module   module is the name of your extension"
echo "  --proto=file       file contains prototypes of functions to create"
echo "  --stubs=file       generate only function stubs in file"
echo "  --xml              generate xml documentation to be added to phpdoc-cvs"
echo "  --full-xml         generate xml documentation for a self-contained extension"
echo "                     (not yet implemented)"
echo "  --no-help          don't try to be nice and create comments in the code"
echo "                     and helper functions to test if the module compiled"
echo "  --assign-params"
echo "  --string-lens"
exit 1
}

if test $# -eq 0; then
  usage
fi

while test $# -gt 0; do
  case "$1" in
  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  case $1 in
    --extname=?*)
	extname=$optarg
	EXTNAME=`echo $extname | tr a-z A-Z`
	;;
    --proto=?*)
	proto=$optarg
	;;
    --stubs=*)
	stubs=yes
	stubfile=$optarg
	;;
    --xml)
	xml="yes"
	;;
    --xml=?*)
	xml=$optarg
	;;
    --full-xml)
	full_xml="yes"
	;;
    --no-help)
	no_help="yes"
	;;
    --assign-params)
	assign_params="yes"
	;;
    --string-lens)
	string_lens="yes"
	;;
    *)
	usage
	;;
  esac
  shift
done

if [ -z "$assign_params" -a ! -z "$string_lens" ]; then
    usage
fi

if test -d "$extname" ; then
	givup "Directory $extname already exists."
fi

test -f ext_skel || givup "ext_skel must be in the current directory"
test -d skeleton || givup "subdirectory skeleton does not exist or is not directory"

if echo '\c' | grep -s c >/dev/null 2>&1
then
    ECHO_N="echo -n"
    ECHO_C=""
else
    ECHO_N="echo"
    ECHO_C='\c'
fi

if [ -z $stubs ]; then
echo "Creating directory $extname"
stubfile=$extname"/function_stubs"

mkdir $extname || givup "Cannot create directory $extname"
fi

if [ ! -z $proto ]; then
    cat $proto | awk -v extname=$extname -v stubs=$stubs -v stubfile=$stubfile -v xml=$xml -v full_xml=$full_xml -v i_know_what_to_do_shut_up_i_dont_need_your_help_mode=$no_help -v assign_params=$assign_params -v string_lens=$string_lens -f ./skeleton/create_stubs
fi

if [ -z $stubs ]; then
cd $extname
chmod 755 .

$ECHO_N "Creating basic files:$ECHO_C"

$ECHO_N " config.m4$ECHO_C"
cat >config.m4 <<eof
dnl \$Id\$
dnl config.m4 for extension $extname
dnl don't forget to call PHP_EXTENSION($extname)

dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary. This file will not work
dnl without editing.

dnl If your extension references something external, use with:

dnl PHP_ARG_WITH($extname, for $extname support,
dnl Make sure that the comment is aligned:
dnl [  --with-$extname             Include $extname support])

dnl Otherwise use enable:

dnl PHP_ARG_ENABLE($extname, whether to enable $extname support,
dnl Make sure that the comment is aligned:
dnl [  --enable-$extname           Enable $extname support])

if test "\$PHP_$EXTNAME" != "no"; then
  dnl If you will not be testing anything external, like existence of
  dnl headers, libraries or functions in them, just uncomment the 
  dnl following line and you are ready to go.
  dnl AC_DEFINE(HAVE_$EXTNAME, 1, [ ])
  dnl Write more examples of tests here...
  PHP_EXTENSION($extname, \$ext_shared)
fi
eof

$ECHO_N " Makefile.in$ECHO_C"
cat >Makefile.in <<eof
# \$Id\$

LTLIBRARY_NAME        = lib$extname.la
LTLIBRARY_SOURCES     = $extname.c
LTLIBRARY_SHARED_NAME = $extname.la

include \$(top_srcdir)/build/dynlib.mk
eof


$ECHO_N " .cvsignore$ECHO_C"
cat >.cvsignore <<eof
.deps
Makefile
*.o
*.lo
*.la
.libs
libs.mk
eof

$ECHO_N " $extname.c$ECHO_C"
echo "s/extname/$extname/g" > sedscript
echo "s/EXTNAME/$EXTNAME/g"  >> sedscript
echo '/__function_entries_here__/r function_entries'  >> sedscript
echo '/__function_stubs_here__/r function_stubs'  >> sedscript
echo '/__header_here__/r ../../header'  >> sedscript
echo '/__footer_here__/r ../../footer'  >> sedscript
echo '/__function_entries_here__/D'  >> sedscript
echo '/__function_stubs_here__/D'  >> sedscript
echo '/__header_here__/D'  >> sedscript
echo '/__footer_here__/D'  >> sedscript
if [ ! -z $no_help ]; then
    echo "/confirm_$extname_compiled/D" >> sedscript
    echo '/Remove the following/,/^\*\//D' >> sedscript
    echo 's/[[:space:]]\/\*.\+\*\///' >> sedscript
    echo 's/^\/\*.*\*\/$//' >> sedscript
    echo '/^[[:space:]]*\/\*/,/^[[:space:]]*\*\//D' >> sedscript
fi

cat ../skeleton/skeleton.c | sed -f sedscript > $extname.c


$ECHO_N " php_$extname.h$ECHO_C"
echo "s/extname/$extname/g" > sedscript
echo "s/EXTNAME/$EXTNAME/g" >> sedscript
echo '/__function_declarations_here__/r function_declarations' >> sedscript
echo '/__header_here__/r ../../header'  >> sedscript
echo '/__footer_here__/r ../../footer'  >> sedscript
echo '/__function_declarations_here__/D' >> sedscript
echo '/__header_here__/D'  >> sedscript
echo '/__footer_here__/D'  >> sedscript
if [ ! -z $no_help ]; then
    echo "/confirm_$extname_compiled/D" >> sedscript
    echo 's/[[:space:]]\/\*.\+\*\///' >> sedscript
    echo 's/^\/\*.*\*\/$//' >> sedscript
    echo '/^[[:space:]]*\/\*/,/^[[:space:]]*\*\//D' >> sedscript
fi
cat ../skeleton/php_skeleton.h | sed -f sedscript > php_$extname.h

rm sedscript

if [ -z "$stubs" -a -z "$no_help" ]; then
$ECHO_N " $extname.php$ECHO_C"
cat ../skeleton/skeleton.php | sed \
-e "s/extname/$extname/g" \
> $extname.php
fi

if [ ! -z $proto ]; then
    if [ -z $stubs ]; then
	rm function_entries
	rm function_declarations
	rm function_stubs
    fi
    if [ -f function_warning ]; then
	rm function_warning
	warning="
NOTE! Because some arguments to functions were resources, the code generated
cannot yet be compiled without editing. Please consider this to be step 4.5
in the instructions above. 
"
    fi
fi

chmod 644 *
fi

echo " [done]."

if [ -z "$no_help" -a -z "$stubs" ]; then
cat <<eof

To use your new extension, you will have to execute the following steps:

1.  $ cd ..
2.  $ vi ext/$extname/config.m4
3.  $ ./buildconf
4.  $ ./configure --[with|enable]-$extname
5.  $ make
6.  $ ./php -f ext/$extname/$extname.php
7.  $ vi ext/$extname/$extname.c
8.  $ make

Repeat steps 3-6 until you are satisfied with ext/$extname/config.m4 and
step 6 confirms that your module is compiled in PHP. Then, start writing
code and repeat the last two steps as often as necessary.
$warning
eof
fi