epm-create_fake

#!/bin/sh
#
# Copyright (C) 2017-2018, 2020  Etersoft
# Copyright (C) 2017-2018, 2020  Vitaly Lipatov <lav@etersoft.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

load_helper epm-assure
load_helper epm-repack-rpm


__create_spec() {

echo "%{!?fake_name: %global fake_name $NAME}" >> "$1"
echo "%{!?fake_version: %global fake_version $VERSION}" >> "$1"
echo "%{!?fake_release: %global fake_release $RELEASE}" >> "$1"
if [ -n "$REQUIRES" ]; then
  echo "%{!?fake_requires: %global fake_requires $REQUIRES}" >> "$1"
fi
if [ -n "$PROVIDES" ]; then
  echo "%{!?fake_provides: %global fake_provides $PROVIDES}" >> "$1"
fi

  cat <<EOF >> "$1"
%define _rpmdir $PWD

Name: fake-%{fake_name}

Version: %{fake_version}
Release: %{fake_release}
License: CC0
Group: Other

Summary: Faked provides package

%if "%{?fake_provides}" != ""
Provides: %{fake_provides}
%endif
Provides: %{fake_name}
%if "%{?fake_requires}" != ""
Requires: %{fake_requires}
%endif
BuildArch: noarch

%description
This package is empty. It has been created to put fake entry in rpmdb.

%files
#intentionaly empty

%changelog
#intentionaly empty
EOF
}


__epm_create_fake_help()
{
message '

epm create-fake - create package with fake provides and requires. Use follow params:
    --install                - auto install fake package
    --version=*              - set package version (by default version is 0)
    --release=*              - set package release (by default release is 0)
    --requires=*             - set package requires
    --provides=*             - set package provides (by default package provide only it self)

Examples:
    # epm create-fake --install python-somepackage
    # epm create-fake --install --provides="python3dist(somepackage)" python-somepackage
    # epm create-fake --install --requires=python3 --requires=python3-module python-somepackage

'
    return
}

epm_create_fake()
{

  VERSION=0
  RELEASE=0
  REQUIRES=""

  for i in "$@"; do
    case $i in
      --version=*)
      VERSION="${i#*=}"
      shift # past argument
      ;;
      --release=*)
      RELEASE="${i#*=}"
      shift # past argument
      ;;
      --requires=*)
      REQUIRES+=" ${i#*=}"
      shift # past argument
      ;;
      --provides=*)
      PROVIDES+=" ${i#*=}"
      shift # past argument
      ;;
      --help|-h)
      __epm_create_fake_help
      return
      ;;
      *)
            # unknown option
      ;;
    esac
  done

  NAME=$1

  if [ -z "$NAME" ]; then
    fatal "Error: You have to specify PACKAGE_NAME"
  fi

    # will set RPMBUILD
  __assure_exists_rpmbuild

  HOME="$(mktemp -d --tmpdir=$BIGTMPDIR)" || fatal
  remove_on_exit $HOME
  export HOME
  __create_rpmmacros

  tmpbuilddir=$HOME/$(basename $NAME).tmpdir
  mkdir $tmpbuilddir

  cd $tmpbuilddir/ || fatal

  SPECFILE=${PWD}/${NAME}.spec
  __create_spec "$SPECFILE"

  showcmd $RPMBUILD -bb $SPECFILE
  if [ -n "$verbose" ] ; then
      a='' $RPMBUILD  -bb $SPECFILE || fatal
  else
      a='' $RPMBUILD -bb $SPECFILE >/dev/null || fatal
  fi

   repacked_rpm="$(realpath "$tmpbuilddir/noarch/*.rpm")"
   remove_on_exit "$repacked_rpm"

  if [ -n "$install" ] ; then
    epm install "$repacked_rpm"
  fi
}