[Cook] How can I make my cook file stop always generating dependency files? -- LONG --

[Henderson, Michael D]

I'm trying to create a cook book based on the sample that uses dependency files in the user's guide. I've got it working, but there are a few things that I don't understand. The cook file is attached, it's long but I don't know which parts to cut out and still make it understandable.

1. When I run a "cook what" to create a dump of my variables so that I can verify what I'm doing, it always re-creates all of my _dep files. I'm pretty sure it's because of this line
	#include-cooked [pkg_dependencies]
Is there a way to make that conditional?

2. The sample had the cpp_dep files created with "set no-cascade" and the hpp_dep files created without that. I've tried it both ways and it seems to work, so I guess that I'm not understanding what it is that the no-cascade option does. I've looked at the manual but remain utterly clueless.

3. Why does the hpp_dep rule look at dirname %0%.cpp? Shouldn't it look at %0%.hpp or since it's doing a dirname, does it even matter?

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set tell-position;

gnuProject  = TestCook_dep;
gnuAuthor   = Mike Henderson;
gnuVer      = 0.0.1;
gnuDir      = [gnuProject]-[gnuVer];
gnuRoot     = /hrapp/devl/[gnuProject]/;
gnuTest     = /userhome/mdhender/bin/testit;
gnuInclude  = ;
gnuLibrary  = ;

inst_root   = /hrapp/packages/;
inst_lib    = [inst_root]lib/[gnuProject]/;
inst_inc    = [inst_root]include/[gnuProject]/;

/*===========================================================================
 * Package Identification Strings
 */
gnuIdentFlags = [catenate -DPKG_VER\= '\'"' [gnuVer] '"\'']
                [catenate -DPKG_IDENT\= "'" '"@(#)' [gnuProject]-[gnuVer] ' " ' '__DATE__ " " __TIME__ " " __FILE__' "'" ]
                [catenate -DSRC_IDENT\= "'" '"@(#)"__DATE__" "__TIME__" "__FILE__' "'"]
                ;

/*==========================================================================*/
ar          = /usr/ccs/bin/ar;
cpp         = g++;
install     = echo install.sh [gnuVer];
ranlib      = /usr/ccs/bin/ranlib;

/*==========================================================================*/
cpp_incl    = -Isrc;
cpp_flags   = [gnuIdentFlags]
              [cpp_incl]
              ;
cpp_libs    = ;

/*===========================================================================
 * allow cook to generate the list of sources files that we have
 */
MANIFEST      = [stripdot [collect find . -type f ]];

/*===========================================================================
 * allow cook to generate the list of packages files that we have
 */
pkg_names       = Foo
                  Froob
                  ;
pkg_libraries     = ;
pkg_dependencies  = ;


/* turn the list of packages into a list of libraries */
list_loop  = [pkg_names];
loop {
  local var_name = [head [list_loop]];
  if [not [count [var_name]]] then
    loopstop;
  list_loop = [tail [list_loop]];

  local var_lib = lib/lib[var_name].a;
  [var_lib]_src = [match_mask [var_name]/%0%.cpp [MANIFEST]];
  [var_lib]_hdr = [match_mask [var_name]/%0%.hpp [MANIFEST]];
  [var_lib]_xml = [match_mask [var_name]/%0%.xml [MANIFEST]];
  [var_lib]_obj = [fromto %0%.cpp %0%.o       [[var_lib]_src]];
  [var_lib]_dep = [fromto %0%.cpp %0%.cpp_dep [[var_lib]_src]]
                  [fromto %0%.hpp %0%.hpp_dep [[var_lib]_hdr]]
                  ;
  function print [var_lib]_src is [[var_lib]_src];
  function print [var_lib]_dep is [[var_lib]_dep];

  if [count [[var_lib]_obj]] then
    pkg_libraries     = [pkg_libraries]    [var_lib];
  if [count [[var_lib]_obj]] then
    pkg_dependencies  = [pkg_dependencies] [[var_lib]_dep];
}

function print packages names are [pkg_names];
function print dependency files are [pkg_dependencies];

#include-cooked [pkg_dependencies]

/*===========================================================================*/
all: all_libraries
{
  function print life is good;
}

all_libraries: [pkg_libraries]
{
  function print pkg_libraries is [pkg_libraries];
}

/*===========================================================================*/
clean:
{
  clean_list = Howto.list
               [match_mask %0%.o      [MANIFEST]]
               [match_mask %0%~       [MANIFEST]]
               [match_mask %0core     [MANIFEST]]
               ;
  if [count [clean_list]] then
    delete [clean_list] set silent;
}

clobber: clean
{
  clean_list  = .c_inclrc
                [pkg_libraries]
                [pkg_dependencies]
                ;
  if [count [clean_list]] then
    delete [clean_list] set silent;
}

what: /* document our libraries */
{
  list_loop  = [pkg_names];
  loop {
    local var_name = [head [list_loop]];
    if [not [count [var_name]]] then
      loopstop;
    list_loop = [tail [list_loop]];

    local var_lib = lib/lib[var_name].a;
    function print var_lib       "=" [var_lib];
    function print [var_lib]_src "=" [[var_lib]_src];
    function print [var_lib]_hdr "=" [[var_lib]_hdr];
    function print [var_lib]_xml "=" [[var_lib]_xml];
    function print [var_lib]_obj "=" [[var_lib]_obj];
  }
}

/*===========================================================================*/
function Say-Why =
{
  if [count [@1]] then
    @1 = [@1];
  if [count [@2]] then
    @2 = [@2];
  local tt = [target];
  if [defined targets] then
    tt = [targets];
  if [in [count [younger]] 0 1 2 3] then {
    function print [@1] [@2]
      Building [target] because of [younger];
  } else {
    function print [@1] [@2]
      Building [target] because of [wordlist 1 3 [younger]] et al;
  }
}

/*===========================================================================
 * force a C++ source file to compile in the current directory with the right
 * include files -- assumes that dependency files have been created
 */
%0%.o: %0%.cpp
{
  function Say-Why [__FILE__] [__LINE__];
  [cpp] -I[dirname %0%.cpp] [cpp_flags] -c %0%.cpp -o [target];
}

/*===========================================================================
 * create a library from object files
 */
lib/lib%.a: [[target]_obj]
  set unlink
{
  function Say-Why [__FILE__] [__LINE__];
  [ar] cq [target] [[target]_obj];
  [ranlib] [target];
}

/*===========================================================================
 * from the sample, create dependency list files for CPP files
 */
%0%.cpp_dep: %0%.cpp
  set no-cascade
{
  function Say-Why [__FILE__] [__LINE__];
  c_incl --no-cache --no-recurs %0%.cpp
    -I[dirname %0%.cpp] [cpp_incl]
    "--prefix='cascade %0%.cpp = '"
    "--suffix=';'"
    -o [target]
      set silent;
}

/*===========================================================================
 * from the sample, create dependency list files for HPP files
 */
%0%.hpp_dep: %0%.hpp
  set no-cascade
{
  function Say-Why [__FILE__] [__LINE__];
  c_incl --no-cache --no-recurs %0%.hpp
    -I[dirname %0%.cpp] [cpp_incl]
    "--prefix='cascade %0%.hpp = '"
    "--suffix=';'"
    -o [target]
      set silent;
}
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