ax_spec_package_version

set PACKAGE from the given specfile - default to basename of the rpmspecfile if no "name:" could be found in the spec file.

set VERSION from the given specfile - default to a date-derived value if no "version:" could be found in the spec file.

this macro builds on top of AX_SPEC_FILE / AX_SPEC_EXTRACT

more specific: if not "name:" or "%define name" was found in the myproject.spec file then the PACKAGE var is set to the basename "myproject". When no spec file was present then it will usually default to "TODO".

The version spec looks for "version:" or "%define version" in the spec file. When no such value was seen or no spec file had been present then the value is set to `date +0.%y.%W%w`.

the version value itself is sanitized somewhat with making it to always carry atleast three digits (1.2.3) and clensing superflous "0" chars around from generating numbers elsewhere.

additional macros are provided that extract a specific value from the spec file, among these:

set PACKAGE_SUMMARY from the given specfile - default to package and try to detect a type suffix if "summary:" was not in the spec file

set PACKAGE_LICENSE from the given specfile - if no "license:" tag was given in the spec file then various COPYING files are grepped to have a guess and the final fallback will be GNU GPL (or GNU LGPL).

set PACKAGE_ICON from the given specfile - if no "icon:" tag was given in the spec file then we default to $PACKAGE-icon.png

the final AX_SPEC_INIT(specfile) will initialize all variables to its defaults according to the spec file given.

AC_DEFUN([AX_SPEC_PACKAGE_LICENSE],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_LICENSE])dnl
  AC_MSG_CHECKING([for spec license type])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file 
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[license],m4_ifval($1,$1))
    VAR=`echo $VAR | sed -e 's/ *License//g'`
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for LICENSE / COPYRIGHT
  if test ".$VAR"   = "."  ; then
    for ac_file in "$srcdir/COPYING" "$srcdir/COPYING" "$srcdir/LICENSE" ; do
      test -f "$ac_file" || continue
dnl  http://www.ibiblio.org/osrt/omf/omf_elements "16. Rights"
      if grep "GNU LESSER GENERAL PUBLIC LICENSE" "$ac_file" >/dev/null
      then VAR="GNU LGPL" ; break
      elif grep "GNU GENERAL PUBLIC LICENSE" "$ac_file" >/dev/null
      then VAR="GNU GPL" ; break
      elif grep "MOZILLA PUBLIC LICENSE" "$ac_file" >/dev/null
      then VAR="MPL" ; break
      elif grep "Mozilla Public License" "$ac_file" >/dev/null
      then VAR="MPL" ; break
      elif grep -i "artistic license" "$ac_file" >/dev/null
      then VAR="Artistic" ; break
      elif grep -i "artistic control" "$ac_file" >/dev/null
      then VAR="Artistic" ; break
      elif grep -i "semblance of artistic" "$ac_file" >/dev/null
      then VAR="Artistic" ; break
      elif grep -i "above copyright notice" "$ac_file" >/dev/null
      then VAR="BSD" ; break
      fi
    done
    if test ".$VAR" = "." ; then
      if test "$srcdir/COPYING.LIB" ; then VAR="GNU LGPL"
      elif test ".$ltmain" != "."   ; then VAR="GNU LGPL" 
       else VAR="GNU GPL"
      fi
    fi
  fi
  ],[test ".$VAR" = "." && VAR="$2"])
  test "$VAR" = "GPL" && VAR="GNU GPL"
  test "$VAR" = "LGPL" && VAR="GNU LGPL"
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

AC_DEFUN([AX_SPEC_PACKAGE_SUMMARY],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_SUMMARY])dnl
  AC_MSG_CHECKING([for spec summary])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file 
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[summary],m4_ifval($1,$1))
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for SUMMARY
  if test ".$VAR"   = "."  ; then VAR="$PACKAGE"
     test ".$VAR" = "." && VAR="foo"
     test ".$ltmain" != "." && VAR="$VAR library"
  fi
  ],[test ".$VAR" = "." && VAR="$2"])
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

AC_DEFUN([AX_SPEC_PACKAGE_ICON],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_ICON])dnl
  AC_MSG_CHECKING([for spec icon])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file 
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[icon],m4_ifval($1,$1))
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for ICON
  if test ".$VAR"   = "."  ; then VAR="$PACKAGE-icon.png" ; fi
  ],[test ".$VAR" = "." && VAR="$2"])
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

AC_DEFUN([AX_SPEC_PACKAGE_CATEGORY],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_CATEGORY])dnl
  AC_MSG_CHECKING([for spec category])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file 
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[group],m4_ifval($1,$1))
    VAR=`echo $VAR | sed -e 's/ /-/g'`
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for CATEGORY
  if test ".$VAR" = "."  ; then if test ".$ltmain" != "."
     then VAR="Development/Library"
     else VAR="Development/Other"
  fi fi
  ],[test ".$VAR" = "." && VAR="$2"])
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

AC_DEFUN([AX_SPEC_PACKAGE_NAME],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_NAME])dnl
  AC_MSG_CHECKING([for spec package])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file 
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[name],m4_ifval($1,$1))
    VAR=`echo $VAR | sed -e 's/ /-/g'`
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for PACKAGE
  test ".$VAR"   = "."  && VAR=`basename $ax_spec_file .spec`
  test ".$VAR"   = ".README" && VAR="TODO"
  test ".$VAR"   = ".TODO" && VAR="foo"
  ],[test ".$VAR" = "." && VAR="$2"])
  test "VAR" = "PACKAGE_NAME" && test ".$PACKAGE" = "." && PACKAGE="$VAR" 
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

AC_DEFUN([AX_SPEC_PACKAGE_VERSION_],[AC_REQUIRE([AX_SPEC_FILE])dnl
  AS_VAR_PUSHDEF([VAR],[PACKAGE_VERSION])dnl
  AC_MSG_CHECKING([for spec version])
  if test ".$VAR" = "." ; then if test ! -f $ax_spec_file
  then k="(w/o spec)"
  else k=""
    AX_SPEC_EXTRACT(VAR,[version],m4_ifval($1,$1))
    VAR=`echo $VAR | sed -e 's/ /-/g'`
  fi fi
  test ".$VAR" = "." && k="(fallback)"
  ifelse($2,,[dnl here the defaults for VERSION
  test ".$VAR"   = "."  && VAR=`date +0.%y.%W%w`
  ],[test ".$VAR" = "." && VAR="$2"])
  test "VAR" = "PACKAGE_VERSION" && test ".$VERSION" = "." && VERSION="$VAR"
  case "$VAR" in  # note we set traditional VERSION before cleaning things up
  *.*.) VAR="$VAR"`date +%W%w` ;;
  *.*.*) ;;
  *.)  VAR="$VAR"`date +%y.%W%w` ;;
  *.*) VAR="$VAR.0" ;;
  *) VAR=AS_TR_SH([$VAR]) ; VAR="$VAR.`date +%y.%W%w`" ;;
  esac
  VAR=`echo $VAR | sed -e "s/[[.]][0]\\([0-9]\\)/.\\1/g"`
  AC_MSG_RESULT([m4_ifval([$1],[$1 = ])$VAR $k])
  AS_VAR_POPDEF([VAR])dnl
])

dnl for compatibility, we define ax_spec_package_version
dnl to do all of ax_spec_package_name as well.
AC_DEFUN([AX_SPEC_PACKAGE_VERSION],[AC_REQUIRE([AX_SPEC_FILE])dnl
  ifelse($1,,
    AC_MSG_WARN([please use ax_spec_package_AND_version now!]),
    AC_MSG_ERROR([please use ax_spec_package_AND_version now!]))
  AX_SPEC_PACKAGE_NAME
  AX_SPEC_PACKAGE_VERSION_
  
])

AC_DEFUN([AX_SPEC_PACKAGE_AND_VERSION],[
  m4_ifset([m4_ax_spec_file],,[AX_SPEC_FILE($1)])
  AX_SPEC_PACKAGE_NAME
  AX_SPEC_PACKAGE_VERSION_
])

AC_DEFUN([AX_SPEC_DEFAULTS],[
  m4_ifset([m4_ax_spec_file],,[AX_SPEC_FILE($1)])
  AX_SPEC_PACKAGE_NAME
  AX_SPEC_PACKAGE_VERSION_
  AX_SPEC_PACKAGE_LICENSE
  AX_SPEC_PACKAGE_SUMMARY
  AX_SPEC_PACKAGE_CATEGORY
  AX_SPEC_PACKAGE_ICON
])