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#include "m_pd.h"
#include "s_stuff.h"
#include "g_canvas.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
/* this object requires Pd 0.40.3 or later */
/* WARNING: KLUDGE! */
/*
* this struct is not publically defined (its in g_canvas.c) so I need to
* include this here. Its from Pd 0.41-test03 2006-11-19. */
struct _canvasenvironment
{
t_symbol *ce_dir; /* directory patch lives in */
int ce_argc; /* number of "$" arguments */
t_atom *ce_argv; /* array of "$" arguments */
int ce_dollarzero; /* value of "$0" */
t_namelist *ce_path; /* search path */
};
static char *version = "$Revision: 1.8 $";
/* This loader opens a directory with a -meta.pd file as a library. In the
* long run, the idea is that one folder will have all of objects files, all
* of the related *-help.pd files, a file with meta data for the help system,
* etc. Then to install the lib, it would just be dropped into extra, or
* anywhere in the global classpath.
*
* Ultimately, the meta file will be read for meta data, specifically for
* the auto-generated Help system, but for other things too. Right now,
* its just used as a marker that a directory is meant to be a library.
* Plus its much easier to implement it this way, I can use
* open_via_path() instead of writing a new function. The grand plan is
* to have one directory hold the objects, help files, manuals,
* etc. making it a self-contained library. <hans@at.or.at>
*/
static int libdir_loader(t_canvas *canvas, char *classname)
{
int fd = -1;
char helppathname[FILENAME_MAX];
char fullclassname[FILENAME_MAX], dirbuf[FILENAME_MAX];
char *nameptr;
t_canvasenvironment *canvasenvironment;
/* look for meta file (classname)/(classname)-meta.pd */
strncpy(fullclassname, classname, FILENAME_MAX - 6);
strcat(fullclassname, "/");
strncat(fullclassname, classname, FILENAME_MAX - strlen(fullclassname) - 6);
strcat(fullclassname, "-meta");
/* if this is being called from a canvas, then add the library path to the
* canvas-local path */
if(canvas)
{
canvasenvironment = canvas_getenv(canvas);
/* setting the canvas to NULL causes it to ignore any canvas-local path */
if ((fd = canvas_open(NULL, fullclassname, ".pd",
dirbuf, &nameptr, FILENAME_MAX, 0)) < 0)
{
return (0);
}
close(fd);
if(sys_isabsolutepath(dirbuf)) // only include actual full paths
canvasenvironment->ce_path = namelist_append(canvasenvironment->ce_path,
dirbuf, 0);
if(sys_verbose)
post("libdir_loader: added '%s' to the canvas-local objectclass path",
classname);
}
else
{
if ((fd = open_via_path(".", fullclassname, ".pd",
dirbuf, &nameptr, FILENAME_MAX, 0)) < 0)
{
return (0);
}
close(fd);
sys_searchpath = namelist_append(sys_searchpath, dirbuf, 0);
strncpy(helppathname, sys_libdir->s_name, FILENAME_MAX-30);
helppathname[FILENAME_MAX-30] = 0;
strcat(helppathname, "/doc/5.reference/");
strcat(helppathname, classname);
sys_helppath = namelist_append(sys_helppath, helppathname, 0);
post("libdir_loader: added '%s' to the global objectclass path",
classname);
// post("\tThis is deprecated behavior.");
}
/* post("libdir_loader loaded fullclassname: '%s'\n", fullclassname); */
if (sys_verbose)
post("Loaded libdir '%s' from '%s'", classname, dirbuf);
return (1);
}
void libdir_setup(void)
{
/* relies on t.grill's loader functionality, fully added in 0.40 */
sys_register_loader(libdir_loader);
post("libdir loader %s",version);
post("\tcompiled on "__DATE__" at "__TIME__ " ");
post("\tcompiled against Pd version %d.%d.%d.%s", PD_MAJOR_VERSION,
PD_MINOR_VERSION, PD_BUGFIX_VERSION, PD_TEST_VERSION);
}
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