#! /bin/bash -ex

## @id $Id$

## Resolve Debian Build Dependencies
## Installs all the required packages
## Call: ./resolve-debbuilddeps 'name of build schroot'
## e.g. call: ./resolve-debbuilddeps trusty_amd64

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

SCHROOTNAME="$1"

if test -e debian/control.in -a ! -e debian/control; then
    sed 's,@[^@]*@, dummytext,g' debian/control.in > debian/control
    trap "rm  debian/control" INT TERM EXIT
fi

if test -n "${SCHROOTNAME}"; then
  DEPS=$(schroot -c "${SCHROOTNAME}" -- dpkg-checkbuilddeps 2>&1 || true)
else
  DEPS=$(dpkg-checkbuilddeps 2>&1 || true)
fi
DEPS=$(echo "$DEPS" | sed -n '/Unmet build dependencies/ { s,.*Unmet build dependencies: ,,g; s, ([^)]*),,g; s, *| *,|,g; p}')

TO_INSTALL=
for pa in ${DEPS}; do
    if test ${pa//|/} = ${pa}; then
        TO_INSTALL+=" ${pa}"
        continue;
    fi
    success=0
    for p in ${pa//|/ }; do
        if test -n "${SCHROOTNAME}"; then
            if schroot -c "${SCHROOTNAME}" -u root -d / -- apt-get -y install ${p}; then
                success=1
                break;
            fi
        else
            if apt-get -y install ${p}; then
                success=1
                break;
            fi
        fi
    done
    if test ${success} -eq 0; then
        echo "**** Error: Installation Failed: ${pa}"
        exit 1
    fi
done

success=0
if test -n "${SCHROOTNAME}"; then
    if schroot -c "${SCHROOTNAME}" -u root -d / -- apt-get -y install ${TO_INSTALL}; then
        success=1
    fi
else
    if apt-get -y install ${TO_INSTALL}; then
        success=1
    fi
fi
if test ${success} -eq 0; then
    echo "**** Error: Installation Failed: ${pa}"
    exit 1
fi

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