bootstrap

#!/bin/sh

printSynopsis() {
	if test -n "$1"
	then
		echo "ERROR: $1"
	fi
	echo "SYNOPSIS"
	echo "\tBootstrap generates a autotools shared library project for you."
	echo "USAGE"
	echo "\t`basename $0` libraryName projectName sourcePrefix copyRightHolder copyRightContact"
	echo "\t"
	echo "\t libraryName       library name of the project (without the lib)"
	echo "\t projectName       a very short description/name of the project"
	echo "\t sourcePrefix      prefix for source files and headers"
	echo "\t copyRightHolder   name of the copyright holder, say John L. Smith"
	echo "\t copyRightContact  Contact information for the copyright holder, could"
	echo "\t                   be E-mail or site"
}

validRegExp() {
	if test -z "$2"
	then
		echo "Empty is no match" >&2
	fi
	if echo "$1" | grep -Ei "$2" >/dev/null
	then
		echo "$1"
	else
		echo "Input '$1' does not match regexp '$2'" >&2
		exit 1
	fi
}

if echo "$1" | grep -Ei "(-{1,2}h\$|-{1,2}help\$|help\$)" >/dev/null
then
	printSynopsis 
	exit 0
fi

if ! test -n "$5"
then 
	printSynopsis "Missing argument(s)" >&2
	exit 1
fi

allowedCommentCharacters="[-+_a-z0-9.%,\"\?@<>/]"
libraryNameRegExp="^[a-z][-_0-9a-z]+[a-z0-9]\$"
nameOrUrlRegExp="^${allowedCommentCharacters}+((\t| )+${allowedCommentCharacters}+){0,4}\$"
sourcePrefixRegExp="^([a-z][a-z0-9]*[-_]{1})+\$"

if ! libraryName=`validRegExp "$1" "${libraryNameRegExp}"`
then 
	printSynopsis "Invalid library name: '$1'" >&2
	exit 1
fi
shift

if ! projectName=`validRegExp "$1" "${nameOrUrlRegExp}"`
then 
	printSynopsis "Invalid project name: '$1'" >&2
	exit 1
fi
shift

if ! sourcePrefix=`validRegExp "$1" "${sourcePrefixRegExp}"`
then 
	printSynopsis "Invalid source prefix: '$1'" >&2
	exit 1
fi
shift

if ! copyrightHolder=`validRegExp "$1" "${nameOrUrlRegExp}"`
then 
	printSynopsis "Invalid copyright holder: '$1'" >&2
	exit 1
fi
shift

if ! copyrightContact=`validRegExp "$1" "${nameOrUrlRegExp}"`
then 
	printSynopsis "Invalid copyright contact: '$1'" >&2
	exit 1
fi
shift

echo "Removing source management system directories"
rm -rf ".git"
rm -rf ".hg"
rm *~


currentYear=`date +"%Y"`
currentDir=`dirname "$0"`

#projectName=`echo "${projectName}" | sed -r s/"\""/'\\\\"'/g | sed -r s/"'"/""/g`
#copyrightHolder=`echo "${copyrightHolder}" | sed -r s/'"'/'\"'/g | sed -r s/"'"/"\'"/g | sed -r s/'\\'/'\\\\'/g `
#copyrightContact=`echo "${copyrightContact}" | sed -r s/'"'/'\"'/g | sed -r s/"'"/"\'"/g | sed -r s/'\\'/'\\\\'/g `

echo "Project name  ${projectName}"
echo "Copyright     ${currentYear} ${copyrightHolder}"
echo "Contact       ${copyrightContact}"
echo "Library       lib${libraryName}"
echo "Source Prefix ${sourcePrefix}"

substituteVariables() {
	echo "Substituting templates for '$1'"
	if ! cat "$1" |\
		sed -r s/'TemplateLibraryName'/"${libraryName}"/g |\
		sed -r s/'GenerateProjectInitialCopyrightYear'/"${currentYear}"/g |\
		sed -r s/'GenerateProjectPrefix'/"${sourcePrefix}"/g |\
		sed  s/'GenerateProjectDescription'/"${projectName}"/ |\
		sed  s/'GenerateProjectCopyrightHolder'/"${copyrightHolder}"/ |\
		sed  s/'GenerateprojectCopyRightContact'/"${copyrightContact}"/ \
			> "$2"
	then
		echo "Error while substituting '$1' to '$2'" >&2
		exit 1
fi
}

sourceGeneratorTemplate="${currentDir}/sourcetemplates/generate-from-template.sh"
sourceGenerator="${currentDir}/generatesource"

if ! test -f "${sourceGeneratorTemplate}"
then
	echo "ERROR: cannot find template for source-code-generator: ${sourceGeneratorTemplate}" >&2
	exit 1
fi

if ! substituteVariables "${sourceGeneratorTemplate}" "${sourceGenerator}"
then
	echo "Failed to create source file creator" >&2
	exit 1
fi

chmod u+x ${sourceGenerator}
chmod u+x "init-autotools"
mkdir include

echo "Replacing library template name in autotools files with '${projectName}'" 

autoToolsFiles=`find "${currentDir}" -name "Makefile.am"`
autoToolsFiles="configure.ac AUTHORS COPYING NOTICE README README.md ${autoToolsFiles}"

for autoToolsFile in ${autoToolsFiles}
do
	echo "Substitue in ${autoToolsFile}..."
	if ! substituteVariables "${autoToolsFile}" "${autoToolsFile}~~"
	then
		exit 1
	fi
	if ! cp "${autoToolsFile}" "${autoToolsFile}~"
	then
		echo "Couldn't create backup!"
		exit 1
	elif ! mv "${autoToolsFile}~~" "${autoToolsFile}"
	then
		echo "Could not copy substituted file back"
		exit 1
	fi
done

echo "DONE!"
echo "Now would be the time to add your project to source control." 
echo "."
echo "You can create source and files using the ./generatesource script"
echo "."
echo "After that, use ./init-autotools to create a working autotools project"
echo "And start building!"
echo "Regards,"
echo "Michel Fleur."