Add all config variables into struct cgit_context

This removes another big set of global variables, and introduces the
cgit_prepare_context() function which populates a context-variable with
compile-time default values.

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

7 files changed, 166 insertions, 175 deletions

diff --git a/cache.c b/cache.c
index b162952..2ed0d6f 100644
--- a/cache.c
+++ b/cache.c
@@ -44,21 +44,21 @@ int cache_create_dirs()
 {
         char *path;
 
-        path = fmt("%s", cgit_cache_root);
+        path = fmt("%s", ctx.cfg.cache_root);
         if (mkdir(path, S_IRWXU) && errno!=EEXIST)
                 return 0;
 
         if (!cgit_repo)
                 return 0;
 
-        path = fmt("%s/%s", cgit_cache_root,
+        path = fmt("%s/%s", ctx.cfg.cache_root,
                    cache_safe_filename(cgit_repo->url));
 
         if (mkdir(path, S_IRWXU) && errno!=EEXIST)
                 return 0;
 
         if (ctx.qry.page) {
-                path = fmt("%s/%s/%s", cgit_cache_root,
+                path = fmt("%s/%s/%s", ctx.cfg.cache_root,
                            cache_safe_filename(cgit_repo->url),
                            ctx.qry.page);
                 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
@@ -74,7 +74,7 @@ int cache_refill_overdue(const char *lockfile)
         if (stat(lockfile, &st))
                 return 0;
         else
-                return (time(NULL) - st.st_mtime > cgit_cache_max_create_time);
+                return (time(NULL) - st.st_mtime > ctx.cfg.cache_max_create_time);
 }
 
 int cache_lock(struct cacheitem *item)
@@ -83,7 +83,7 @@ int cache_lock(struct cacheitem *item)
         char *lockfile = xstrdup(fmt("%s.lock", item->name));
 
  top:
-        if (++i > cgit_max_lock_attempts)
+        if (++i > ctx.cfg.max_lock_attempts)
                 die("cache_lock: unable to lock %s: %s",
                     item->name, strerror(errno));
 
diff --git a/cgit.c b/cgit.c
index 8a30c3c..f0907a1 100644
--- a/cgit.c
+++ b/cgit.c
@@ -11,7 +11,7 @@
 static int cgit_prepare_cache(struct cacheitem *item)
 {
         if (!cgit_repo && ctx.qry.repo) {
-                char *title = fmt("%s - %s", cgit_root_title, "Bad request");
+                char *title = fmt("%s - %s", ctx.cfg.root_title, "Bad request");
                 cgit_print_docstart(title, item);
                 cgit_print_pageheader(title, 0);
                 cgit_print_error(fmt("Unknown repo: %s", ctx.qry.repo));
@@ -20,27 +20,27 @@ static int cgit_prepare_cache(struct cacheitem *item)
         }
 
         if (!cgit_repo) {
-                item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
-                item->ttl = cgit_cache_root_ttl;
+                item->name = xstrdup(fmt("%s/index.html", ctx.cfg.cache_root));
+                item->ttl = ctx.cfg.cache_root_ttl;
                 return 1;
         }
 
         if (!cgit_cmd) {
-                item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root,
+                item->name = xstrdup(fmt("%s/%s/index.%s.html", ctx.cfg.cache_root,
                                          cache_safe_filename(cgit_repo->url),
                                          cache_safe_filename(ctx.qry.raw)));
-                item->ttl = cgit_cache_repo_ttl;
+                item->ttl = ctx.cfg.cache_repo_ttl;
         } else {
-                item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
+                item->name = xstrdup(fmt("%s/%s/%s/%s.html", ctx.cfg.cache_root,
                                          cache_safe_filename(cgit_repo->url),
                                          ctx.qry.page,
                                          cache_safe_filename(ctx.qry.raw)));
                 if (ctx.qry.has_symref)
-                        item->ttl = cgit_cache_dynamic_ttl;
+                        item->ttl = ctx.cfg.cache_dynamic_ttl;
                 else if (ctx.qry.has_sha1)
-                        item->ttl = cgit_cache_static_ttl;
+                        item->ttl = ctx.cfg.cache_static_ttl;
                 else
-                        item->ttl = cgit_cache_repo_ttl;
+                        item->ttl = ctx.cfg.cache_repo_ttl;
         }
         return 1;
 }
@@ -85,7 +85,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
         unsigned char sha1[20];
 
         if (chdir(cgit_repo->path)) {
-                title = fmt("%s - %s", cgit_root_title, "Bad request");
+                title = fmt("%s - %s", ctx.cfg.root_title, "Bad request");
                 cgit_print_docstart(title, item);
                 cgit_print_pageheader(title, 0);
                 cgit_print_error(fmt("Unable to scan repository: %s",
@@ -153,7 +153,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
         switch(cgit_cmd) {
         case CMD_LOG:
                 cgit_print_log(ctx.qry.sha1, ctx.qry.ofs,
-                               cgit_max_commit_count, ctx.qry.grep, ctx.qry.search,
+                               ctx.cfg.max_commit_count, ctx.qry.grep, ctx.qry.search,
                                ctx.qry.path, 1);
                 break;
         case CMD_TREE:
@@ -212,7 +212,7 @@ static void cgit_check_cache(struct cacheitem *item)
         int i = 0;
 
  top:
-        if (++i > cgit_max_lock_attempts) {
+        if (++i > ctx.cfg.max_lock_attempts) {
                 die("cgit_refresh_cache: unable to lock %s: %s",
                     item->name, strerror(errno));
         }
@@ -258,10 +258,10 @@ static void cgit_parse_args(int argc, const char **argv)
 
         for (i = 1; i < argc; i++) {
                 if (!strncmp(argv[i], "--cache=", 8)) {
-                        cgit_cache_root = xstrdup(argv[i]+8);
+                        ctx.cfg.cache_root = xstrdup(argv[i]+8);
                 }
                 if (!strcmp(argv[i], "--nocache")) {
-                        cgit_nocache = 1;
+                        ctx.cfg.nocache = 1;
                 }
                 if (!strncmp(argv[i], "--query=", 8)) {
                         ctx.qry.raw = xstrdup(argv[i]+8);
@@ -291,6 +291,7 @@ int main(int argc, const char **argv)
         struct cacheitem item;
         const char *cgit_config_env = getenv("CGIT_CONFIG");
 
+        cgit_prepare_context(&ctx);
         htmlfd = STDOUT_FILENO;
         item.st.st_mtime = time(NULL);
         cgit_repolist.length = 0;
@@ -301,14 +302,14 @@ int main(int argc, const char **argv)
                          cgit_global_config_cb);
         cgit_repo = NULL;
         if (getenv("SCRIPT_NAME"))
-                cgit_script_name = xstrdup(getenv("SCRIPT_NAME"));
+                ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
         if (getenv("QUERY_STRING"))
                 ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
         cgit_parse_args(argc, argv);
         cgit_parse_query(ctx.qry.raw, cgit_querystring_cb);
         if (!cgit_prepare_cache(&item))
                 return 0;
-        if (cgit_nocache) {
+        if (ctx.cfg.nocache) {