/*
A config for gvrender is a text file containing a
- list of plugins and their capabilities using a tcl-like
+ list of plugin librariess and their capabilities using a tcl-like
syntax
Lines beginning with '#' are ignored as comments
Blank lines are allowed and ignored.
- plugin_path {
+ plugin_library_path {
plugin_api {
plugin_type plugin_quality
...
e.g.
- /usr/lib/graphviz/cairo.so {renderer {x 0 png 10 ps -10}}
- /usr/lib/graphviz/gdgen.so {renderer {png 0 gif 0 jpg 0}}
+ /usr/lib/graphviz/libgvplugin_cairo.so {renderer {x 0 png 10 ps -10}}
+ /usr/lib/graphviz/libgvplugin_gdgen.so {renderer {png 0 gif 0 jpg 0}}
Internally the config is maintained as lists of plugin_types for each plugin_api.
If multiple plugins of the same type are found then the highest quality wins.
return t;
}
+static void gvconfig_library_install_from_config(GVC_t * gvc, char *s)
+{
+ char *path, *api, *type;
+ api_t gv_api;
+ int quality, rc;
+ int nest = 0;
+
+ separator(&nest, &s);
+ while (*s) {
+ path = token(&nest, &s);
+ do {
+ api = token(&nest, &s);
+ gv_api = gvplugin_api(api);
+ if (gv_api == -1) {
+ fprintf(stderr, "invalid api in config: %s %s\n", path, api);
+ return;
+ }
+ do {
+ type = token(&nest, &s);
+ if (nest == 2)
+ quality = atoi(token(&nest, &s));
+ else
+ quality = 0;
+ rc = gvplugin_install (gvc, gv_api, type, quality, path, NULL);
+ if (!rc) {
+ fprintf(stderr, "config error: %s %s %s\n", path, api, type);
+ return;
+ }
+ } while (nest == 2);
+ } while (nest == 1);
+ }
+}
+
+static void gvconfig_library_install_from_struct(GVC_t * gvc, gvplugin_library_t *library)
+{
+ gvplugin_api_t *apis;
+ gvplugin_type_t *types;
+ int i;
+
+ 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->name, &types[i]);
+ }
+ }
+}
+
+static void gvconfig_write_library_config(char *path, gvplugin_library_t *library, FILE *f)
+{
+ gvplugin_api_t *apis;
+ gvplugin_type_t *types;
+ int i;
+
+ fputs (path, f);
+ fputs (" {\n", f);
+ for (apis = library->apis; (types = apis->types); apis++) {
+ fputs ("\t", f);
+ fputs (gvplugin_api_name(apis->api), f);
+ fputs (" {\n", f);
+ for (i = 0; types[i].type; i++) {
+ fprintf(f, "\t\t%s %d\n", types[i].type, types[i].quality);
+ }
+ fputs ("\t}\n", f);
+ }
+ fputs ("}\n", f);
+}
+
#ifdef DISABLE_LTDL
extern gvplugin_library_t *builtins[];
#endif
*/
void gvconfig(GVC_t * gvc)
{
- gvplugin_api_t *apis;
- gvplugin_type_t *types;
- int i;
#ifdef DISABLE_LTDL
gvplugin_library_t **libraryp;
#else
gvplugin_library_t *library;
- char *s, *path, *api, *type;
- api_t gv_api;
- int quality;
- int nest = 0;
- int sz, rc, j;
+ int sz, rc, i;
struct stat config_st, libdir_st;
FILE *f;
char *config_path, *config_glob, *home, *config_text;
#ifdef DISABLE_LTDL
for (libraryp = builtins; *libraryp; libraryp++) {
- for (apis = (*libraryp)->apis; (types = apis->types); apis++) {
- for (i = 0; types[i].type; i++) {
- gvplugin_install(gvc, apis->api,
- types[i].type, types[i].quality,
- (*libraryp)->name, &types[i]);
- }
- }
+ gvconfig_library_install_from_struct(gvc, *libraryp);
}
-
#else
/* see if there are any new plugins */
f = fopen(config_path,"w");
if (!f) {
fprintf(stderr,"failed to open %s for write.\n", config_path);
- free(config_path);
- return;
}
+ /* load all libraries even if can't save config */
config_glob = malloc(strlen(libdir) + strlen(plugin_glob) + 1);
strcpy(config_glob, libdir);
rc = glob(config_glob, GLOB_NOSORT, NULL, &globbuf);
if (rc == 0) {
- for (j = 0; j < globbuf.gl_pathc; j++) {
- library = gvplugin_library_load(globbuf.gl_pathv[j]);
+ for (i = 0; i < globbuf.gl_pathc; i++) {
+ library = gvplugin_library_load(globbuf.gl_pathv[i]);
if (library) {
- fputs (globbuf.gl_pathv[j], f);
- fputs (" {\n", f);
- for (apis = library->apis; (types = apis->types); apis++) {
- fputs ("\t", f);
- fputs (gvplugin_api_name(apis->api), f);
- fputs (" {\n", f);
- for (i = 0; types[i].type; i++) {
- /* might as well install it since its already loaded */
- gvplugin_install(gvc, apis->api, types[i].type,
- types[i].quality, library->name, &types[i]);
- fprintf(f, "\t\t%s %d\n",
- types[i].type, types[i].quality);
- }
- fputs ("\t}\n", f);
+ gvconfig_library_install_from_struct(gvc, library);
+ if (f) {
+ gvconfig_write_library_config(globbuf.gl_pathv[i], library, f);
}
- fputs ("}\n", f);
}
}
}
globfree(&globbuf);
free(config_glob);
- fclose(f);
- return; /* all plugins have been installed */
+ if (f)
+ fclose(f);
}
+ else {
+ /* load in the cached plugin library data */
- /* load in the cached plugin library data */
-
- if (config_st.st_size > MAX_SZ_CONFIG) {
- fprintf(stderr,"%s is bigger than I can handle.\n", config_path);
- free(config_path);
- return;
- }
- f = fopen(config_path,"r");
- if (!f) { /* if we fail to open it then it probably doesn't exists
- so just fail silently, clean up and return */
- free(config_path);
- return;
- }
- config_text = malloc(config_st.st_size + 1);
- config_text[0] = '\0';
- sz = fread(config_text, 1, config_st.st_size, f);
- if (sz == 0) {
- fprintf(stderr,"%s is zero sized, or other read error.\n", config_path);
- free(config_path);
- free(config_text);
- return;
- }
- fclose(f);
- free(config_path); /* not needed now that we've slurped in the contents */
+ if (config_st.st_size > MAX_SZ_CONFIG) {
+ fprintf(stderr,"%s is bigger than I can handle.\n", config_path);
+ free(config_path);
+ return;
+ }
+ f = fopen(config_path,"r");
+ if (!f) { /* if we fail to open it then it probably doesn't exists
+ so just fail silently, clean up and return */
+ free(config_path);
+ return;
+ }
+ config_text = malloc(config_st.st_size + 1);
+ config_text[0] = '\0';
+ sz = fread(config_text, 1, config_st.st_size, f);
+ if (sz == 0) {
+ fprintf(stderr,"%s is zero sized, or other read error.\n", config_path);
+ free(config_path);
+ free(config_text);
+ return;
+ }
+ fclose(f);
+ free(config_path); /* not needed now that we've slurped in the contents */
- config_text[config_st.st_size] = '\0'; /* make input into a null terminated string */
+ config_text[config_st.st_size] = '\0'; /* make input into a null terminated string */
- s = config_text;
- separator(&nest, &s);
- while (*s) {
- path = token(&nest, &s);
- do {
- api = token(&nest, &s);
- gv_api = gvplugin_api(api);
- if (gv_api == -1) {
- fprintf(stderr, "invalid api in config: %s %s\n", path, api);
- return;
- }
- do {
- type = token(&nest, &s);
- if (nest == 2)
- quality = atoi(token(&nest, &s));
- else
- quality = 0;
- rc = gvplugin_install (gvc, gv_api, type, quality, path, NULL);
- if (!rc) {
- fprintf(stderr, "config error: %s %s %s\n", path, api, type);
- return;
- }
- } while (nest == 2);
- } while (nest == 1);
+ gvconfig_library_install_from_config(gvc, config_text);
}
#endif
}
projects / graphviz / commitdiff