static void config_rescan(GVC_t *gvc, char *config_path)
{
FILE *f = NULL;
glob_t globbuf;
char *config_glob, *config_re, *path, *libdir;
int i, rc, re_status;
gvplugin_library_t *library;
regex_t re;
#ifndef WIN32
char *plugin_glob = "libgvplugin_*";
#endif
#if defined(DARWIN_DYLIB)
char *plugin_re_beg = "[^0-9]\\.";
char *plugin_re_end = "\\.dylib$";
#elif defined(__MINGW32__)
char *plugin_glob = "libgvplugin_*";
char *plugin_re_beg = "[^0-9]-";
char *plugin_re_end = "\\.dll$";
#elif defined(__CYGWIN__)
plugin_glob = "cyggvplugin_*";
char *plugin_re_beg = "[^0-9]-";
char *plugin_re_end = "\\.dll$";
#elif defined(WIN32)
char *plugin_glob = "gvplugin_*";
char *plugin_re_beg = "[^0-9]";
char *plugin_re_end = "\\.dll$";
#elif ((defined(__hpux__) || defined(__hpux)) && !(defined(__ia64)))
char *plugin_re_beg = "\\.sl\\.";
char *plugin_re_end = "$";
#else
/* Everyone else */
char *plugin_re_beg = "\\.so\\.";
char *plugin_re_end= "$";
#endif
if (config_path) {
f = fopen(config_path,"w");
if (!f) {
agerr(AGERR,"failed to open %s for write.\n", config_path);
exit(1);
}
fprintf(f, "# This file was generated by \"dot -c\" at time of install.\n\n");
fprintf(f, "# You may temporarily disable a plugin by removing or commenting out\n");
fprintf(f, "# a line in this file, or you can modify its \"quality\" value to affect\n");
fprintf(f, "# default plugin selection.\n\n");
fprintf(f, "# Manual edits to this file **will be lost** on upgrade.\n\n");
}
libdir = gvconfig_libdir(gvc);
config_re = gmalloc(strlen(plugin_re_beg) + 20 + strlen(plugin_re_end) + 1);
#if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
sprintf(config_re,"%s%s", plugin_re_beg, plugin_re_end);
#elif defined(GVPLUGIN_VERSION)
sprintf(config_re,"%s%d%s", plugin_re_beg, GVPLUGIN_VERSION, plugin_re_end);
#else
sprintf(config_re,"%s[0-9]+%s", plugin_re_beg, plugin_re_end);
#endif
if (regcomp(&re, config_re, REG_EXTENDED|REG_NOSUB) != 0) {
agerr(AGERR,"cannot compile regular expression %s", config_re);
}
config_glob = gmalloc(strlen(libdir) + 1 + strlen(plugin_glob) + 1);
strcpy(config_glob, libdir);
strcat(config_glob, DIRSEP);
strcat(config_glob, plugin_glob);
/* load all libraries even if can't save config */
#if defined(WIN32)
rc = glob(gvc, config_glob, GLOB_NOSORT, NULL, &globbuf);
#else
rc = glob(config_glob, GLOB_NOSORT, NULL, &globbuf);
#endif
if (rc == 0) {
for (i = 0; i < globbuf.gl_pathc; i++) {
re_status = regexec(&re, globbuf.gl_pathv[i], (size_t) 0, NULL, 0);
if (re_status == 0) {
library = gvplugin_library_load(gvc, globbuf.gl_pathv[i]);
if (library) {
gvconfig_plugin_install_from_library(gvc, globbuf.gl_pathv[i], library);
}
}
}
/* rescan with all libs loaded to check cross dependencies */
for (i = 0; i < globbuf.gl_pathc; i++) {
re_status = regexec(&re, globbuf.gl_pathv[i], (size_t) 0, NULL, 0);
if (re_status == 0) {
library = gvplugin_library_load(gvc, globbuf.gl_pathv[i]);
if (library) {
path = strrchr(globbuf.gl_pathv[i],DIRSEP[0]);
if (path)
path++;
if (f && path)
gvconfig_write_library_config(gvc, path, library, f);
}
}
}
}
regfree(&re);
globfree(&globbuf);
free(config_glob);
free(config_re);
if (f)
fclose(f);
}
/* load a plugin of type=str
where str can optionally contain a ":packagename" modifier */
gvplugin_available_t *gvplugin_load(GVC_t * gvc, api_t api, char *str)
{
gvplugin_available_t **pnext, *rv;
gvplugin_library_t *library;
gvplugin_api_t *apis;
gvplugin_installed_t *types;
char *s, *p;
int i;
/* check for valid apis[] index */
if (api < 0)
return NULL;
/* does str have a :packagename modifier? */
s = strdup(str);
p = strchr(s, ':');
if (p)
*p++ = '\0';
/* point to the beginning of the linked list of plugins for this api */
pnext = &(gvc->apis[api]);
while (*pnext) {
if (strcmp(s, (*pnext)->typestr) == 0) {
if (p) {
if (strcmp(p, (*pnext)->packagename) == 0)
break;
}
else
break;
}
pnext = &((*pnext)->next);
}
rv = *pnext;
if ((*pnext) && (*pnext)->typeptr == NULL) {
rv = NULL;
library = gvplugin_library_load((*pnext)->path);
if (library) {
/*
* FIXME - would be cleaner to here remove the entries from the
* config data for the uninstalled library - i.e. the entries
* without type ptrs. It works without because the real library
* data is inserted ahead of, and so supercedes, the config data.
*/
/* Now reinsert the library with real type ptrs */
for (apis = library->apis; (types = apis->types); apis++) {
for (i = 0; types[i].type; i++) {
gvplugin_install(gvc,
apis->api,
types[i].type,
types[i].quality,
library->packagename,
(*pnext)->path,
&types[i]);
}
}
/* Now search again for the specific plugin type */
pnext = &(gvc->apis[api]);
while (*pnext) {
if (strcmp(s, (*pnext)->typestr) == 0) {
if (p) {
if (strcmp(p, (*pnext)->packagename) == 0)
break;
}
else
break;
}
pnext = &((*pnext)->next);
}
rv = *pnext;
}
}
/* one last check for succesfull load */
if ((*pnext) && (*pnext)->typeptr == NULL)
rv = NULL;
free(s);
gvc->api[api] = rv;
return rv;
}
