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/* wrapper/plugin-load.h -- load rvs plugins into mem
system depens: <string.h> <unistd.h> <dirent.h> <sys/stat.h> <error.h>
Copyright (C) 2009 Luke Shumaker
This file is part of rvs.
rvs is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your
option) any later version.
rvs 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with rvs; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef FILE_plugin_load_h_SEEN
#define FILE_plugin_load_h_SEEN
#include "rvs.h"
#include "plugins.h"
#include "plugin-parse.h"
/*- plugin_load ----------------------------------------------------*\
assume we're in rvs's libexecdir, where plugins are
now, load plugin plug_name,
\* whose configuration file is plugin_conf */
struct plugin *
plugin_load (const char *plug_name, const char *plugin_conf)
{
struct plugin *plugin=xmalloc( sizeof(*plugin) );
plugin->name=stralloc(plug_name);
plugin->next=NULL;
xchdir(plug_name);
FILE *file = xfopen(plugin_conf,"r");
plugin->commands=plugin_parse(file);
fclose( file );
xchdir("..");
return plugin;
}
/*- load_plugins ---------------------------------------------------*\
Load all the plugins in `libexecdir'
Use `plugin_conf' as the name of the config file for each plugin
Note that the method we use to loop through all the directories in
`libexecdir' is a horible kludge, uses a ton of system functions,
\* and generally needs to be rewritten. */
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/stat.h>
#include <error.h>
struct plugin *
load_plugins (const char *libexecdir, const char *plugin_conf)
{
struct plugin *first=NULL; /* we return this */
struct plugin **prev=&first; /* this is the previous plugin->next */
struct plugin *plugin; /* this is the current plugin */
xchdir(libexecdir);
/* Yeah, I know this next bit is pretty ugly. */
DIR *cwd;
struct dirent *dirent;
int serr;
struct stat sbuf;
const char *dirname="./";
cwd = opendir (dirname);
if (cwd == NULL) error(EXIT_FAILURE,errno,"%s/",dirname);
while ( (dirent = readdir (cwd)) != NULL ) {
if ((strcmp(dirent->d_name,"." )!=0)&&
(strcmp(dirent->d_name,"..")!=0)) {
serr = stat(dirent->d_name, &sbuf);
if (!serr && S_ISDIR(sbuf.st_mode)) {
plugin=plugin_load(dirent->d_name,plugin_conf);
*prev=plugin;/* this sets the last's `next' */
prev=&plugin->next;
}
}
}
closedir (cwd);
xchdir("..");
return first;
}
#endif
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