Creates a RPM file either from the command-line or from a description file. The rpm contains the files in the directory specified by files variable.

create-rpm

#!/bin/sh

error(){
  echo "$@" >&2
  exit 1
}

destdir="$(pwd)"
specdir="$(pwd)"
selffile=
pkgname=
pkgver=1.0
pkgrel=1
pkgdesc=
license=
arch=
files=

while [[ -n "$1" ]]; do
  case "$1" in
    -rpm)
      ;;
    -pkgname)
      shift
      pkgname="$1"
      ;;
    -pkgver)
      shift
      pkgver="$1"
      ;;
    -pkgrel)
      shift
      pkgrel="$1"
      ;;
    -pkgdesc)
      shift
      pkgdesc="$1"
      ;;
    -license)
      shift
      license="$1"
      ;;
    -arch)
      shift
      arch="$1"
      ;;
    -files)
      shift
      files="$1"
      [[ -z "$pkgname" ]] && pkgname="$files"
      ;;
    *)
      if [[ -d "$1" ]]; then
        files="$1"
        [[ -z "$pkgname" ]] && pkgname="$files"
      else
        cd "$(dirname "$1")"
        specdir="$(pwd)"
        selffile="$(basename "$1")"
        [[ -z "$pkgname" ]] && pkgname="${selffile%.*}"
      fi
      break
      ;;
  esac
  shift
done

[[ -n "$selffile" ]] && source "./$selffile"

[[ -z "$files"    ]] && error 'Empty variable $files'
[[ -d "$files"    ]] || error "Not a directory: files=$files"
[[ -z "$pkgdesc"  ]] && pkgdesc="Autogenerated package $pkgname $pkgver-$pkgrel"
[[ -z "$license"  ]] && license="Unknown"

cd "$files"
files="$(find . -print0 | xargs -0 -n 1 sh -c 'if [[ -d "$0" ]]; then printf "%%dir \"%s/\"\n" "${0:1}"; else printf "\"%s\"\n" "${0:1}"; fi')"

specfile="$pkgname-$pkgver-$pkgrel.spec"

(
  echo "Buildroot: $(pwd)"
  [[ -n "$pkgname" ]] && echo "Name: $pkgname"
  [[ -n "$pkgver" ]]  && echo "Version: $pkgver"
  [[ -n "$pkgrel" ]]  && echo "Release: $pkgrel"
  [[ -n "$pkgdesc" ]] && echo "Summary: $pkgdesc"
  [[ -n "$license" ]] && echo "License: $license"
  echo
  cat <<EOF
%define _rpmdir $destdir
%define _rpmfilename %%{NAME}-%%{VERSION}-%%{RELEASE}.%%{ARCH}.rpm
%define _unpackaged_files_terminate_build 0
%define _binaries_in_noarch_packages_terminate_build 0

%description
$pkgdesc

%files
$files

%clean
EOF
)>"$specdir/$specfile"

flags=
[[ -n "$arch" ]] && flags="$flags --target=$arch"
echo rpmbuild -bb $flags --buildroot="`pwd`" "$specdir/$specfile"
rpmbuild -bb $flags --buildroot="`pwd`" "$specdir/$specfile"