Add include-parameter to config files

This parameter can be used to include another config-file, like
a standalone repository listing.

Suggested in a patch by Kristian Høgsberg <krh@bitplanet.net>

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

3 files changed, 15 insertions, 8 deletions

@@ -63,8 +63,11 @@
 #cache-root=/var/cache/cgit
 
 
+## Include another config-file
+#include=/var/cgit/repolist
+
 ##
-## Time-To-Live settings: specifies how long (in minutes) different pages 
+## Time-To-Live settings: specifies how long (in minutes) different pages
 ## should be cached (0 for instant expiration, -1 for immortal pages)
 ##
 
@@ -74,7 +77,7 @@
 ## ttl for repo summary page
 #cache-repo-ttl=5
 
-## ttl for other dynamic pages 
+## ttl for other dynamic pages
 #cache-dynamic-ttl=5
 
 ## ttl for static pages (addressed by SHA-1)
@@ -64,19 +64,21 @@ int read_config_line(FILE *f, char *line, const char **value, int bufsize)
 
 int cgit_read_config(const char *filename, configfn fn)
 {
-        int ret = 0, len;
+        static int nesting;
+        int len;
         char line[256];
         const char *value;
-        FILE *f = fopen(filename, "r");
+        FILE *f;
 
-        if (!f)
+        /* cancel the reading of yet another configfile after 16 invocations */
+        if (nesting++ > 16)
+                return -1;
+        if (!(f = fopen(filename, "r")))
                 return -1;
-
         while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
                 (*fn)(line, value);
-
         fclose(f);
-        return ret;
+        return 0;
 }
 
 char *convert_query_hexchar(char *txt)
@@ -137,6 +137,8 @@ void cgit_global_config_cb(const char *name, const char *value)
                 cgit_repo->snapshots = atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.module-link"))
                 cgit_repo->module_link= xstrdup(value);
+        else if (!strcmp(name, "include"))
+                cgit_read_config(value, cgit_global_config_cb);
 }
 
 void cgit_repo_config_cb(const char *name, const char *value)