Added my own implementation of "Hello world" as an example.
This commit is contained in:
heinzel
291
configure
vendored
Executable file
291
configure
vendored
Executable file
@@ -0,0 +1,291 @@
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#!/bin/sh
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#
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# configure
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#
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# A simple script to configure Makefiles
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# (i.e. read Makefile.in, replace strings and write Makefile).
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#
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# heinzel <heinzel@heinzelwelt.de>
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#
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# $Id: configure,v 1.1 2007/11/26 23:37:48 heinzel Exp $
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#
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VERSION='configure Version 0.1 $Revision: 1.1 $ ($Date: 2007/11/26 23:37:48 $ $Author: heinzel $)'
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### config ###
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FILES=""
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FILES_DEF="configure.files"
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TEMPLATE_SUFFIX=".in"
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MACROS_DEF="configure.macros"
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MACROS="CTEMPLATE"
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MACRO_CTEMPLATE="@CFILE@ (created by configure script)"
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### functions ###
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function print_help() {
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cat <<EOH
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configure create files by processing templates and replace macros.
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For now macros are simple name-value pairs. Use strings like @NAME@ within
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the template files and configure will replace those strings by the named
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value while creating the resulting files.
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Usage: ./configure [OPTIONS]
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Options:
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-h, --help
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-V, --version
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Generic Options (and default values):
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EOH
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for m in $MACROS ; do
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case "$m" in
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CFILE|CTEMPLATE)
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continue
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;;
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esac
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name="`echo $m | tr [[:upper:]] [[:lower:]]`"
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text="`eval_macro $m`"
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case "$text" in
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0)
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output=" --without-${name}"
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;;
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1)
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output=" --with-${name}"
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;;
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*)
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output=" --${name} $text"
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;;
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esac
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echo "$output"
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done
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echo ""
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cat <<EOH
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Files:
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This script will create following files: $FILES
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or read file names to create from '$FILES_DEF'
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The templates have to end with '$TEMPLATE_SUFFIX'
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The macros can be defined in '$MACROS_DEF'
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EOH
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}
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function print_version() {
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echo "$VERSION"
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}
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function set_macro() {
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case "$1" in
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'')
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return 1
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;;
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--with-*|--enable-*)
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name="`echo $1 | cut -f1 -d= | cut -f4- -d- | tr [[:lower:]] [[:upper:]]`"
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text="1"
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;;
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--without-*|--disable-*)
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name="`echo $1 | cut -f1 -d= | cut -f4- -d- | tr [[:lower:]] [[:upper:]]`"
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text="0"
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;;
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--*=*)
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name="`echo $1 | cut -f1 -d= | cut -c3- | tr [[:lower:]] [[:upper:]]`"
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text="`echo $1 | cut -f2- -d=`"
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;;
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--*)
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name="`echo $1 | cut -c3- | tr [[:lower:]] [[:upper:]]`"
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text="$2"
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;;
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*=*)
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name="`echo $1 | cut -f1 -d= | tr [[:lower:]] [[:upper:]]`"
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text="`echo $1 | cut -f2- -d=`"
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;;
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*)
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name="`echo $1 | tr [[:lower:]] [[:upper:]]`"
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text=""
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;;
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esac
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eval MACRO_${name}=${text}
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if ! expr " $MACROS " : ".* $name .*" >/dev/null ; then
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MACROS="$MACROS ${name}"
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fi
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}
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function eval_macro() {
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local name="$1"
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local text=""
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local return=""
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eval text="\$MACRO_${name}"
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while : ; do
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# Test if text contains more macros.
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echo "$text" | grep -E "@[A-Z][A-Z0-9]*@" >/dev/null
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r=$?
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if test "1${r}" != "10" ; then
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# Text is macro free.
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return="$text"
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break
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else
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# Get the last macro name from text...
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sm_name="`echo $text | sed -e 's=^.*@\([A-Z][A-Z0-9]*\)@.*$=\1='`"
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# Resolve it...
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sm_text="`eval_macro $sm_name`"
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# Substitute macro...
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text="`echo $text | sed -e 's=@'${sm_name}'@='${sm_text}'=g'`"
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fi
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done
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echo "$return"
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}
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function load_defaults() {
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local inc="${MACROS_DEF:-configure.macros}"
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local i=0
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local line=""
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if test "X${inc}" = "X" ; then
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return 1
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fi
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if test ! -r "$inc" -o -d "$inc" ; then
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echo "${inc}: not a readable file." >&2
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return 1
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fi
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while read line ; do
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i="`expr $i + 1`"
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case "$line" in
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\#*|\ *|'')
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continue
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;;
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*=*)
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set_macro "$line"
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;;
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*)
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echo "Warning: $inc: unexpected line ($i)." >&2
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;;
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esac
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done < "$inc"
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}
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function configure() {
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local file="$1"
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local ext="${TEMPLATE_SUFFIX:-.in}"
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local template=""
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local static_file=""
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local expr=""
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local name=""
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local text=""
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if test "X${file}" = "X" ; then
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echo "No filename given." >&2
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return 1
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fi
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template="${file}${ext}"
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if test ! -r "$template" -o -d "$template" ; then
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echo "$file: cannot read template ($template)."
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return 1
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fi
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set_macro CFILE="$file"
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ctext="`eval_macro CTEMPLATE`"
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cexpr="s=@${template}@=${ctext}=g"
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if test "X${CONFIGURE_STATIC_FILE}" != "X" ; then
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static_file="$CONFIGURE_STATIC_FILE"
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read expr < "$static_file"
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else
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static_file="`mktemp configure.tmp.XXXXXX`"
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if test "1$?" -ne "10" -o "X${static_file}" = "X" \
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-o ! -w "$static_file" ; then
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echo "Cannot create temp file." >&2
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return 1
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fi
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CONFIGURE_STATIC_FILE="$static_file"
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expr=""
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for name in $MACROS ; do
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case "$name" in
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CFILE|CTEMPLATE)
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continue
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;;
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esac
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text="`eval_macro $name`"
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expr="s=@$name@=$text=g
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$expr"
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done
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echo "$expr" > "$static_file"
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fi
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sed -e "$cexpr" -e "$expr" "$template" > "$file"
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}
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function clean_up() {
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if test "X${CONFIGURE_STATIC_FILE}" != "X" -a -f "$CONFIGURE_STATIC_FILE" ; then
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rm "$CONFIGURE_STATIC_FILE"
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fi
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}
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### set options ###
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load_defaults
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while test "1$#" -gt "10" ; do
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case "$1" in
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-h|--help)
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print_help
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exit 0
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;;
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-V|--version)
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print_version
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exit 0
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;;
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--with-*|--without-*)
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set_macro "$1"
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shift
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;;
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--enable-*|--disable-*)
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set_macro "$1"
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shift
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;;
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--*=*)
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set_macro "$1"
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shift
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;;
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--*)
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case "$2" in
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''|-*)
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set_macro "${1}=1"
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shift
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;;
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*)
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set_macro "$1" "$2"
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shift
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shift
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;;
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esac
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;;
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esac
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done
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### action ###
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files="$FILES"
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if test "X${FILES_DEF}" != "X" -a -f "$FILES_DEF" ; then
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read buf < "$FILES_DEF"
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files="$files $buf"
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fi
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if test "X${files}" = "X" ; then
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echo "No files to configure." >&2
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echo " Make sure '$FILES_DEF' is there and readable." >&2
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exit 1
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fi
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for f in $files ; do
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echo "Creating file $f..."
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configure $f
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done
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clean_up
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### end ###
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