#! /bin/bash -ex

## @id $Id$

## Resolve RPM Build Dependencies
## Installs all the required packages
## Call: ./resolve-rpmbuilddeps 'name of build schroot'
## e.g. call: ./resolve-rpmbuilddeps opensuse-13.2_x86_64

##       1         2         3         4         5         6         7         8
## 45678901234567890123456789012345678901234567890123456789012345678901234567890

INSTALL_TOOL=${INSTALL_TOOL:-$((test -x /usr/bin/zypper && echo zypper install -y) ||  (test -x /usr/bin/dnf && echo dnf install -y) || (test -x /usr/bin/yum && echo yum install -y) || (test -x /usr/sbin/urpmi && echo urpmi --auto))}
SCHROOTNAME="$1"
PACKAGE_NAME=$(sed -n 's/^ *m4_define(x_package_name, \(.*\)).*/\1/p' configure.ac)

TRAP_CMD=
if test -e ${PACKAGE_NAME}.spec.in -a ! -e ${PACKAGE_NAME}.spec; then
    TRAP_CMD+="rm ${PACKAGE_NAME}.spec;"
    trap "${TRAP_CMD}" INT TERM EXIT
    sed 's,@RPM_DEPEND_IFEXISTS@,,g' ${PACKAGE_NAME}.spec.in | \
        sed 's,@[^@]*@, dummytext,g' > ${PACKAGE_NAME}.spec
fi

TGZFILE=$(sed -n '/^Name: */{s///;h};/^Version: */{s///;H;x;s/\n/-/;s/$/.tar.gz/;p}' ${PACKAGE_NAME}.spec)
if ! test -e $TGZFILE; then
    TRAP_CMD+="rm ${TGZFILE};"
    trap "${TRAP_CMD}" INT TERM EXIT
    touch $TGZFILE
fi

if test -n "${SCHROOTNAME}"; then
    FILES=$(LANG= schroot -c ${SCHROOTNAME} -- rpmbuild -bb --clean --nobuild --define "_topdir ." --define "_sourcedir ." ${PACKAGE_NAME}.spec  2>&1 | sed -n 's, is needed by.*,,p')
    if test -n "${FILES}"; then
        schroot -c ${SCHROOTNAME} -u root -- ${INSTALL_TOOL}  ${FILES}
    fi
else
    FILES=$(LANG= rpmbuild -bb --clean --nobuild --define "_topdir ." --define "_sourcedir ." ${PACKAGE_NAME}.spec 2>&1 | sed -n 's, is needed by.*,,p')
    if test -n "${FILES}"; then
        ${INSTALL_TOOL} ${FILES}
    fi
fi

echo "**** Success: All Dependencies Resolved"