From f60ffa143cca61e9729ac71033e1a556cf422871 Mon Sep 17 00:00:00 2001
From: Lukas Fleischer
Date: Wed, 15 Jan 2014 21:53:15 +0100
Subject: Switch to exclusively using global ctx

Drop the context parameter from the following functions (and all static
helpers used by them) and use the global context instead:

* cgit_print_http_headers()
* cgit_print_docstart()
* cgit_print_pageheader()

Remove context parameter from all commands

Drop the context parameter from the following functions (and all static
helpers used by them) and use the global context instead:

* cgit_get_cmd()
* All cgit command functions.
* cgit_clone_info()
* cgit_clone_objects()
* cgit_clone_head()
* cgit_print_plain()
* cgit_show_stats()

In initialization routines, use the global context variable instead of
passing a pointer around locally.

Remove callback data parameter for cache slots

This is no longer needed since the context is always read from the
global context variable.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
---
 cache.c       |  14 ++-
 cache.h       |   5 +-
 cgit.c        | 322 +++++++++++++++++++++++++++++-----------------------------
 cmd.c         | 102 +++++++++----------
 cmd.h         |   4 +-
 ui-atom.c     |   2 +-
 ui-blob.c     |   2 +-
 ui-clone.c    |  48 ++++-----
 ui-clone.h    |   6 +-
 ui-diff.c     |   2 +-
 ui-patch.c    |   2 +-
 ui-plain.c    |  14 +--
 ui-plain.h    |   2 +-
 ui-repolist.c |   6 +-
 ui-shared.c   | 303 +++++++++++++++++++++++++++---------------------------
 ui-shared.h   |   6 +-
 ui-snapshot.c |   8 +-
 ui-stats.c    |  29 +++---
 ui-stats.h    |   2 +-
 19 files changed, 437 insertions(+), 442 deletions(-)

diff --git a/cache.c b/cache.c
index fa83ddc..fcd461f 100644
--- a/cache.c
+++ b/cache.c
@@ -24,7 +24,6 @@ struct cache_slot {
 	int keylen;
 	int ttl;
 	cache_fill_fn fn;
-	void *cbdata;
 	int cache_fd;
 	int lock_fd;
 	const char *cache_name;
@@ -187,7 +186,7 @@ static int fill_slot(struct cache_slot *slot)
 		return errno;
 
 	/* Generate cache content */
-	slot->fn(slot->cbdata);
+	slot->fn();
 
 	/* Restore stdout */
 	if (dup2(tmp, STDOUT_FILENO) == -1)
@@ -277,7 +276,7 @@ static int process_slot(struct cache_slot *slot)
 	if ((err = lock_slot(slot)) != 0) {
 		cache_log("[cgit] Unable to lock slot %s: %s (%d)\n",
 			  slot->lock_name, strerror(err), err);
-		slot->fn(slot->cbdata);
+		slot->fn();
 		return 0;
 	}
 
@@ -286,7 +285,7 @@ static int process_slot(struct cache_slot *slot)
 			  slot->lock_name, strerror(err), err);
 		unlock_slot(slot, 0);
 		close_lock(slot);
-		slot->fn(slot->cbdata);
+		slot->fn();
 		return 0;
 	}
 	// We've got a valid cache slot in the lock file, which
@@ -310,7 +309,7 @@ static int process_slot(struct cache_slot *slot)
 
 /* Print cached content to stdout, generate the content if necessary. */
 int cache_process(int size, const char *path, const char *key, int ttl,
-		  cache_fill_fn fn, void *cbdata)
+		  cache_fill_fn fn)
 {
 	unsigned long hash;
 	int i;
@@ -321,14 +320,14 @@ int cache_process(int size, const char *path, const char *key, int ttl,
 
 	/* If the cache is disabled, just generate the content */
 	if (size <= 0) {
-		fn(cbdata);
+		fn();
 		return 0;
 	}
 
 	/* Verify input, calculate filenames */
 	if (!path) {
 		cache_log("[cgit] Cache path not specified, caching is disabled\n");
-		fn(cbdata);
+		fn();
 		return 0;
 	}
 	if (!key)
@@ -343,7 +342,6 @@ int cache_process(int size, const char *path, const char *key, int ttl,
 	strbuf_addbuf(&lockname, &filename);
 	strbuf_addstr(&lockname, ".lock");
 	slot.fn = fn;
-	slot.cbdata = cbdata;
 	slot.ttl = ttl;
 	slot.cache_name = filename.buf;
 	slot.lock_name = lockname.buf;
diff --git a/cache.h b/cache.h
index 5cfdb4f..9392836 100644
--- a/cache.h
+++ b/cache.h
@@ -6,7 +6,7 @@
 #ifndef CGIT_CACHE_H
 #define CGIT_CACHE_H
 
-typedef void (*cache_fill_fn)(void *cbdata);
+typedef void (*cache_fill_fn)(void);
 
 
 /* Print cached content to stdout, generate the content if necessary.
@@ -17,13 +17,12 @@ typedef void (*cache_fill_fn)(void *cbdata);
  *   key     the key used to lookup cache files
  *   ttl     max cache time in seconds for this key
  *   fn      content generator function for this key
- *   cbdata  user-supplied data to the content generator function
  *
  * Return value
  *   0 indicates success, everyting else is an error
  */
 extern int cache_process(int size, const char *path, const char *key, int ttl,
-			 cache_fill_fn fn, void *cbdata);
+			 cache_fill_fn fn);
 
 
 /* List info about all cache entries on stdout */
diff --git a/cgit.c b/cgit.c
index 994957f..ec8f69c 100644
--- a/cgit.c
+++ b/cgit.c
@@ -322,82 +322,82 @@ static void querystring_cb(const char *name, const char *value)
 	}
 }
 
-static void prepare_context(struct cgit_context *ctx)
+static void prepare_context(void)
 {
-	memset(ctx, 0, sizeof(*ctx));
-	ctx->cfg.agefile = "info/web/last-modified";
-	ctx->cfg.nocache = 0;
-	ctx->cfg.cache_size = 0;
-	ctx->cfg.cache_max_create_time = 5;
-	ctx->cfg.cache_root = CGIT_CACHE_ROOT;
-	ctx->cfg.cache_about_ttl = 15;
-	ctx->cfg.cache_repo_ttl = 5;
-	ctx->cfg.cache_root_ttl = 5;
-	ctx->cfg.cache_scanrc_ttl = 15;
-	ctx->cfg.cache_dynamic_ttl = 5;
-	ctx->cfg.cache_static_ttl = -1;
-	ctx->cfg.case_sensitive_sort = 1;
-	ctx->cfg.branch_sort = 0;
-	ctx->cfg.commit_sort = 0;
-	ctx->cfg.css = "/cgit.css";
-	ctx->cfg.logo = "/cgit.png";
-	ctx->cfg.favicon = "/favicon.ico";
-	ctx->cfg.local_time = 0;
-	ctx->cfg.enable_http_clone = 1;
-	ctx->cfg.enable_index_owner = 1;
-	ctx->cfg.enable_tree_linenumbers = 1;
-	ctx->cfg.enable_git_config = 0;
-	ctx->cfg.max_repo_count = 50;
-	ctx->cfg.max_commit_count = 50;
-	ctx->cfg.max_lock_attempts = 5;
-	ctx->cfg.max_msg_len = 80;
-	ctx->cfg.max_repodesc_len = 80;
-	ctx->cfg.max_blob_size = 0;
-	ctx->cfg.max_stats = 0;
-	ctx->cfg.project_list = NULL;
-	ctx->cfg.renamelimit = -1;
-	ctx->cfg.remove_suffix = 0;
-	ctx->cfg.robots = "index, nofollow";
-	ctx->cfg.root_title = "Git repository browser";
-	ctx->cfg.root_desc = "a fast webinterface for the git dscm";
-	ctx->cfg.scan_hidden_path = 0;
-	ctx->cfg.script_name = CGIT_SCRIPT_NAME;
-	ctx->cfg.section = "";
-	ctx->cfg.repository_sort = "name";
-	ctx->cfg.section_sort = 1;
-	ctx->cfg.summary_branches = 10;
-	ctx->cfg.summary_log = 10;
-	ctx->cfg.summary_tags = 10;
-	ctx->cfg.max_atom_items = 10;
-	ctx->cfg.ssdiff = 0;
-	ctx->env.cgit_config = getenv("CGIT_CONFIG");
-	ctx->env.http_host = getenv("HTTP_HOST");
-	ctx->env.https = getenv("HTTPS");
-	ctx->env.no_http = getenv("NO_HTTP");
-	ctx->env.path_info = getenv("PATH_INFO");
-	ctx->env.query_string = getenv("QUERY_STRING");
-	ctx->env.request_method = getenv("REQUEST_METHOD");
-	ctx->env.script_name = getenv("SCRIPT_NAME");
-	ctx->env.server_name = getenv("SERVER_NAME");
-	ctx->env.server_port = getenv("SERVER_PORT");
-	ctx->env.http_cookie = getenv("HTTP_COOKIE");
-	ctx->env.http_referer = getenv("HTTP_REFERER");
-	ctx->env.content_length = getenv("CONTENT_LENGTH") ? strtoul(getenv("CONTENT_LENGTH"), NULL, 10) : 0;
-	ctx->env.authenticated = 0;
-	ctx->page.mimetype = "text/html";
-	ctx->page.charset = PAGE_ENCODING;
-	ctx->page.filename = NULL;
-	ctx->page.size = 0;
-	ctx->page.modified = time(NULL);
-	ctx->page.expires = ctx->page.modified;
-	ctx->page.etag = NULL;
-	memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
-	if (ctx->env.script_name)
-		ctx->cfg.script_name = xstrdup(ctx->env.script_name);
-	if (ctx->env.query_string)
-		ctx->qry.raw = xstrdup(ctx->env.query_string);
-	if (!ctx->env.cgit_config)
-		ctx->env.cgit_config = CGIT_CONFIG;
+	memset(&ctx, 0, sizeof(ctx));
+	ctx.cfg.agefile = "info/web/last-modified";
+	ctx.cfg.nocache = 0;
+	ctx.cfg.cache_size = 0;
+	ctx.cfg.cache_max_create_time = 5;
+	ctx.cfg.cache_root = CGIT_CACHE_ROOT;
+	ctx.cfg.cache_about_ttl = 15;
+	ctx.cfg.cache_repo_ttl = 5;
+	ctx.cfg.cache_root_ttl = 5;
+	ctx.cfg.cache_scanrc_ttl = 15;
+	ctx.cfg.cache_dynamic_ttl = 5;
+	ctx.cfg.cache_static_ttl = -1;
+	ctx.cfg.case_sensitive_sort = 1;
+	ctx.cfg.branch_sort = 0;
+	ctx.cfg.commit_sort = 0;
+	ctx.cfg.css = "/cgit.css";
+	ctx.cfg.logo = "/cgit.png";
+	ctx.cfg.favicon = "/favicon.ico";
+	ctx.cfg.local_time = 0;
+	ctx.cfg.enable_http_clone = 1;
+	ctx.cfg.enable_index_owner = 1;
+	ctx.cfg.enable_tree_linenumbers = 1;
+	ctx.cfg.enable_git_config = 0;
+	ctx.cfg.max_repo_count = 50;
+	ctx.cfg.max_commit_count = 50;
+	ctx.cfg.max_lock_attempts = 5;
+	ctx.cfg.max_msg_len = 80;
+	ctx.cfg.max_repodesc_len = 80;
+	ctx.cfg.max_blob_size = 0;
+	ctx.cfg.max_stats = 0;
+	ctx.cfg.project_list = NULL;
+	ctx.cfg.renamelimit = -1;
+	ctx.cfg.remove_suffix = 0;
+	ctx.cfg.robots = "index, nofollow";
+	ctx.cfg.root_title = "Git repository browser";
+	ctx.cfg.root_desc = "a fast webinterface for the git dscm";
+	ctx.cfg.scan_hidden_path = 0;
+	ctx.cfg.script_name = CGIT_SCRIPT_NAME;
+	ctx.cfg.section = "";
+	ctx.cfg.repository_sort = "name";
+	ctx.cfg.section_sort = 1;
+	ctx.cfg.summary_branches = 10;
+	ctx.cfg.summary_log = 10;
+	ctx.cfg.summary_tags = 10;
+	ctx.cfg.max_atom_items = 10;
+	ctx.cfg.ssdiff = 0;
+	ctx.env.cgit_config = getenv("CGIT_CONFIG");
+	ctx.env.http_host = getenv("HTTP_HOST");
+	ctx.env.https = getenv("HTTPS");
+	ctx.env.no_http = getenv("NO_HTTP");
+	ctx.env.path_info = getenv("PATH_INFO");
+	ctx.env.query_string = getenv("QUERY_STRING");
+	ctx.env.request_method = getenv("REQUEST_METHOD");
+	ctx.env.script_name = getenv("SCRIPT_NAME");
+	ctx.env.server_name = getenv("SERVER_NAME");
+	ctx.env.server_port = getenv("SERVER_PORT");
+	ctx.env.http_cookie = getenv("HTTP_COOKIE");
+	ctx.env.http_referer = getenv("HTTP_REFERER");
+	ctx.env.content_length = getenv("CONTENT_LENGTH") ? strtoul(getenv("CONTENT_LENGTH"), NULL, 10) : 0;
+	ctx.env.authenticated = 0;
+	ctx.page.mimetype = "text/html";
+	ctx.page.charset = PAGE_ENCODING;
+	ctx.page.filename = NULL;
+	ctx.page.size = 0;
+	ctx.page.modified = time(NULL);
+	ctx.page.expires = ctx.page.modified;
+	ctx.page.etag = NULL;
+	memset(&ctx.cfg.mimetypes, 0, sizeof(struct string_list));
+	if (ctx.env.script_name)
+		ctx.cfg.script_name = xstrdup(ctx.env.script_name);
+	if (ctx.env.query_string)
+		ctx.qry.raw = xstrdup(ctx.env.query_string);
+	if (!ctx.env.cgit_config)
+		ctx.env.cgit_config = CGIT_CONFIG;
 }
 
 struct refmatch {
@@ -527,14 +527,14 @@ static void choose_readme(struct cgit_repo *repo)
 		string_list_append(&repo->readme, filename)->util = ref;
 }
 
-static int prepare_repo_cmd(struct cgit_context *ctx)
+static int prepare_repo_cmd(void)
 {
 	unsigned char sha1[20];
 	int nongit = 0;
 	int rc;
 
 	/* The path to the git repository. */
-	setenv("GIT_DIR", ctx->repo->path, 1);
+	setenv("GIT_DIR", ctx.repo->path, 1);
 
 	/* Do not look in /etc/ for gitconfig and gitattributes. */
 	setenv("GIT_CONFIG_NOSYSTEM", "1", 1);
@@ -549,69 +549,69 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
 	init_display_notes(NULL);
 
 	if (nongit) {
-		const char *name = ctx->repo->name;
+		const char *name = ctx.repo->name;
 		rc = errno;
-		ctx->page.title = fmtalloc("%s - %s", ctx->cfg.root_title,
+		ctx.page.title = fmtalloc("%s - %s", ctx.cfg.root_title,
 						"config error");
-		ctx->repo = NULL;
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+		ctx.repo = NULL;
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 		cgit_print_error("Failed to open %s: %s", name,
 				 rc ? strerror(rc) : "Not a valid git repository");
 		cgit_print_docend();
 		return 1;
 	}
-	ctx->page.title = fmtalloc("%s - %s", ctx->repo->name, ctx->repo->desc);
+	ctx.page.title = fmtalloc("%s - %s", ctx.repo->name, ctx.repo->desc);
 
-	if (!ctx->repo->defbranch)
-		ctx->repo->defbranch = guess_defbranch();
+	if (!ctx.repo->defbranch)
+		ctx.repo->defbranch = guess_defbranch();
 
-	if (!ctx->qry.head) {
-		ctx->qry.nohead = 1;
-		ctx->qry.head = find_default_branch(ctx->repo);
+	if (!ctx.qry.head) {
+		ctx.qry.nohead = 1;
+		ctx.qry.head = find_default_branch(ctx.repo);
 	}
 
-	if (!ctx->qry.head) {
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+	if (!ctx.qry.head) {
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 		cgit_print_error("Repository seems to be empty");
 		cgit_print_docend();
 		return 1;
 	}
 
-	if (get_sha1(ctx->qry.head, sha1)) {
-		char *tmp = xstrdup(ctx->qry.head);
-		ctx->qry.head = ctx->repo->defbranch;
-		ctx->page.status = 404;
-		ctx->page.statusmsg = "Not found";
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+	if (get_sha1(ctx.qry.head, sha1)) {
+		char *tmp = xstrdup(ctx.qry.head);
+		ctx.qry.head = ctx.repo->defbranch;
+		ctx.page.status = 404;
+		ctx.page.statusmsg = "Not found";
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 		cgit_print_error("Invalid branch: %s", tmp);
 		cgit_print_docend();
 		return 1;
 	}
-	sort_string_list(&ctx->repo->submodules);
-	cgit_prepare_repo_env(ctx->repo);
-	choose_readme(ctx->repo);
+	sort_string_list(&ctx.repo->submodules);
+	cgit_prepare_repo_env(ctx.repo);
+	choose_readme(ctx.repo);
 	return 0;
 }
 
-static inline void open_auth_filter(struct cgit_context *ctx, const char *function)
+static inline void open_auth_filter(const char *function)
 {
-	cgit_open_filter(ctx->cfg.auth_filter, function,
-		ctx->env.http_cookie ? ctx->env.http_cookie : "",
-		ctx->env.request_method ? ctx->env.request_method : "",
-		ctx->env.query_string ? ctx->env.query_string : "",
-		ctx->env.http_referer ? ctx->env.http_referer : "",
-		ctx->env.path_info ? ctx->env.path_info : "",
-		ctx->env.http_host ? ctx->env.http_host : "",
-		ctx->env.https ? ctx->env.https : "",
-		ctx->qry.repo ? ctx->qry.repo : "",
-		ctx->qry.page ? ctx->qry.page : "",
-		ctx->qry.url ? ctx->qry.url : "",
+	cgit_open_filter(ctx.cfg.auth_filter, function,
+		ctx.env.http_cookie ? ctx.env.http_cookie : "",
+		ctx.env.request_method ? ctx.env.request_method : "",
+		ctx.env.query_string ? ctx.env.query_string : "",
+		ctx.env.http_referer ? ctx.env.http_referer : "",
+		ctx.env.path_info ? ctx.env.path_info : "",
+		ctx.env.http_host ? ctx.env.http_host : "",
+		ctx.env.https ? ctx.env.https : "",
+		ctx.qry.repo ? ctx.qry.repo : "",
+		ctx.qry.page ? ctx.qry.page : "",
+		ctx.qry.url ? ctx.qry.url : "",
 		cgit_loginurl());
 }
 
@@ -622,107 +622,106 @@ static inline void open_auth_filter(struct cgit_context *ctx, const char *functi
  * will complain on the mailing list, and we'll increase it as needed. */
 #define MAX_AUTHENTICATION_POST_BYTES 4096
 /* The filter is expected to spit out "Status: " and all headers. */
-static inline void authenticate_post(struct cgit_context *ctx)
+static inline void authenticate_post(void)
 {
 	char buffer[MAX_AUTHENTICATION_POST_BYTES];
 	int len;
 
-	open_auth_filter(ctx, "authenticate-post");
-	len = ctx->env.content_length;
+	open_auth_filter("authenticate-post");
+	len = ctx.env.content_length;
 	if (len > MAX_AUTHENTICATION_POST_BYTES)
 		len = MAX_AUTHENTICATION_POST_BYTES;
 	if (read(STDIN_FILENO, buffer, len) < 0)
 		die_errno("Could not read POST from stdin");
 	if (write(STDOUT_FILENO, buffer, len) < 0)
 		die_errno("Could not write POST to stdout");
-	cgit_close_filter(ctx->cfg.auth_filter);
+	cgit_close_filter(ctx.cfg.auth_filter);
 	exit(0);
 }
 
-static inline void authenticate_cookie(struct cgit_context *ctx)
+static inline void authenticate_cookie(void)
 {
 	/* If we don't have an auth_filter, consider all cookies valid, and thus return early. */
-	if (!ctx->cfg.auth_filter) {
-		ctx->env.authenticated = 1;
+	if (!ctx.cfg.auth_filter) {
+		ctx.env.authenticated = 1;
 		return;
 	}
 
 	/* If we're having something POST'd to /login, we're authenticating POST,
 	 * instead of the cookie, so call authenticate_post and bail out early.
 	 * This pattern here should match /?p=login with POST. */
-	if (ctx->env.request_method && ctx->qry.page && !ctx->repo && \
-	    !strcmp(ctx->env.request_method, "POST") && !strcmp(ctx->qry.page, "login")) {
-		authenticate_post(ctx);
+	if (ctx.env.request_method && ctx.qry.page && !ctx.repo && \
+	    !strcmp(ctx.env.request_method, "POST") && !strcmp(ctx.qry.page, "login")) {
+		authenticate_post();
 		return;
 	}
 
 	/* If we've made it this far, we're authenticating the cookie for real, so do that. */
-	open_auth_filter(ctx, "authenticate-cookie");
-	ctx->env.authenticated = cgit_close_filter(ctx->cfg.auth_filter);
+	open_auth_filter("authenticate-cookie");
+	ctx.env.authenticated = cgit_close_filter(ctx.cfg.auth_filter);
 }
 
-static void process_request(void *cbdata)
+static void process_request(void)
 {
-	struct cgit_context *ctx = cbdata;
 	struct cgit_cmd *cmd;
 
 	/* If we're not yet authenticated, no matter what page we're on,
 	 * display the authentication body from the auth_filter. This should
 	 * never be cached. */
-	if (!ctx->env.authenticated) {
-		ctx->page.title = "Authentication Required";
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
-		open_auth_filter(ctx, "body");
-		cgit_close_filter(ctx->cfg.auth_filter);
+	if (!ctx.env.authenticated) {
+		ctx.page.title = "Authentication Required";
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
+		open_auth_filter("body");
+		cgit_close_filter(ctx.cfg.auth_filter);
 		cgit_print_docend();
 		return;
 	}
 
-	cmd = cgit_get_cmd(ctx);
+	cmd = cgit_get_cmd();
 	if (!cmd) {
-		ctx->page.title = "cgit error";
-		ctx->page.status = 404;
-		ctx->page.statusmsg = "Not found";
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+		ctx.page.title = "cgit error";
+		ctx.page.status = 404;
+		ctx.page.statusmsg = "Not found";
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 		cgit_print_error("Invalid request");
 		cgit_print_docend();
 		return;
 	}
 
-	if (!ctx->cfg.enable_http_clone && cmd->is_clone) {
+	if (!ctx.cfg.enable_http_clone && cmd->is_clone) {
 		html_status(404, "Not found", 0);
 		return;
 	}
 
-	/* If cmd->want_vpath is set, assume ctx->qry.path contains a "virtual"
-	 * in-project path limit to be made available at ctx->qry.vpath.
-	 * Otherwise, no path limit is in effect (ctx->qry.vpath = NULL).
+	/* If cmd->want_vpath is set, assume ctx.qry.path contains a "virtual"
+	 * in-project path limit to be made available at ctx.qry.vpath.
+	 * Otherwise, no path limit is in effect (ctx.qry.vpath = NULL).
 	 */
-	ctx->qry.vpath = cmd->want_vpath ? ctx->qry.path : NULL;
+	ctx.qry.vpath = cmd->want_vpath ? ctx.qry.path : NULL;
 
-	if (cmd->want_repo && !ctx->repo) {
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+	if (cmd->want_repo && !ctx.repo) {
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 		cgit_print_error("No repository selected");
 		cgit_print_docend();
 		return;
 	}
 
-	if (ctx->repo && prepare_repo_cmd(ctx))
+	if (ctx.repo && prepare_repo_cmd())
 		return;
 
 	if (cmd->want_layout) {
-		cgit_print_http_headers(ctx);
-		cgit_print_docstart(ctx);
-		cgit_print_pageheader(ctx);
+		cgit_print_http_headers();
+		cgit_print_docstart();
+		cgit_print_pageheader();
 	}
 
-	cmd->fn(ctx);
+	cmd->fn();
 
 	if (cmd->want_layout)
 		cgit_print_docend();
@@ -995,7 +994,7 @@ int main(int argc, const char **argv)
 	cgit_init_filters();
 	atexit(cgit_cleanup_filters);
 
-	prepare_context(&ctx);
+	prepare_context();
 	cgit_repolist.length = 0;
 	cgit_repolist.count = 0;
 	cgit_repolist.repos = NULL;
@@ -1034,7 +1033,7 @@ int main(int argc, const char **argv)
 	/* Before we go any further, we set ctx.env.authenticated by checking to see
 	 * if the supplied cookie is valid. All cookies are valid if there is no
 	 * auth_filter. If there is an auth_filter, the filter decides. */
-	authenticate_cookie(&ctx);
+	authenticate_cookie();
 
 	ttl = calc_ttl();
 	if (ttl < 0)
@@ -1046,7 +1045,8 @@ int main(int argc, const char **argv)
 	if (ctx.cfg.nocache)
 		ctx.cfg.cache_size = 0;
 	err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
-			    ctx.qry.raw, ttl, process_request, &ctx);
+			    ctx.qry.raw, ttl, process_request);
+	cgit_cleanup_filters();
 	if (err)
 		cgit_print_error("Error processing page: %s (%d)",
 				 strerror(err), err);
diff --git a/cmd.c b/cmd.c
index 420b3b1..cbd235c 100644
--- a/cmd.c
+++ b/cmd.c
@@ -26,120 +26,120 @@
 #include "ui-tag.h"
 #include "ui-tree.h"
 
-static void HEAD_fn(struct cgit_context *ctx)
+static void HEAD_fn(void)
 {
-	cgit_clone_head(ctx);
+	cgit_clone_head();
 }
 
-static void atom_fn(struct cgit_context *ctx)
+static void atom_fn(void)
 {
-	cgit_print_atom(ctx->qry.head, ctx->qry.path, ctx->cfg.max_atom_items);
+	cgit_print_atom(ctx.qry.head, ctx.qry.path, ctx.cfg.max_atom_items);
 }
 
-static void about_fn(struct cgit_context *ctx)
+static void about_fn(void)
 {
-	if (ctx->repo)
-		cgit_print_repo_readme(ctx->qry.path);
+	if (ctx.repo)
+		cgit_print_repo_readme(ctx.qry.path);
 	else
 		cgit_print_site_readme();
 }
 
-static void blob_fn(struct cgit_context *ctx)
+static void blob_fn(void)
 {
-	cgit_print_blob(ctx->qry.sha1, ctx->qry.path, ctx->qry.head, 0);
+	cgit_print_blob(ctx.qry.sha1, ctx.qry.path, ctx.qry.head, 0);
 }
 
-static void commit_fn(struct cgit_context *ctx)
+static void commit_fn(void)
 {
-	cgit_print_commit(ctx->qry.sha1, ctx->qry.path);
+	cgit_print_commit(ctx.qry.sha1, ctx.qry.path);
 }
 
-static void diff_fn(struct cgit_context *ctx)
+static void diff_fn(void)
 {
-	cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path, 1, 0);
+	cgit_print_diff(ctx.qry.sha1, ctx.qry.sha2, ctx.qry.path, 1, 0);
 }
 
-static void rawdiff_fn(struct cgit_context *ctx)
+static void rawdiff_fn(void)
 {
-	cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path, 1, 1);
+	cgit_print_diff(ctx.qry.sha1, ctx.qry.sha2, ctx.qry.path, 1, 1);
 }
 
-static void info_fn(struct cgit_context *ctx)
+static void info_fn(void)
 {
-	cgit_clone_info(ctx);
+	cgit_clone_info();
 }
 
-static void log_fn(struct cgit_context *ctx)
+static void log_fn(void)
 {
-	cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
-		       ctx->qry.grep, ctx->qry.search, ctx->qry.path, 1,
-		       ctx->repo->enable_commit_graph,
-		       ctx->repo->commit_sort);
+	cgit_print_log(ctx.qry.sha1, ctx.qry.ofs, ctx.cfg.max_commit_count,
+		       ctx.qry.grep, ctx.qry.search, ctx.qry.path, 1,
+		       ctx.repo->enable_commit_graph,
+		       ctx.repo->commit_sort);
 }
 
-static void ls_cache_fn(struct cgit_context *ctx)
+static void ls_cache_fn(void)
 {
-	ctx->page.mimetype = "text/plain";
-	ctx->page.filename = "ls-cache.txt";
-	cgit_print_http_headers(ctx);
-	cache_ls(ctx->cfg.cache_root);
+	ctx.page.mimetype = "text/plain";
+	ctx.page.filename = "ls-cache.txt";
+	cgit_print_http_headers();
+	cache_ls(ctx.cfg.cache_root);
 }
 
-static void objects_fn(struct cgit_context *ctx)
+static void objects_fn(void)
 {
-	cgit_clone_objects(ctx);
+	cgit_clone_objects();
 }
 
-static void repolist_fn(struct cgit_context *ctx)
+static void repolist_fn(void)
 {
 	cgit_print_repolist();
 }
 
-static void patch_fn(struct cgit_context *ctx)
+static void patch_fn(void)
 {
-	cgit_print_patch(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
+	cgit_print_patch(ctx.qry.sha1, ctx.qry.sha2, ctx.qry.path);
 }
 
-static void plain_fn(struct cgit_context *ctx)
+static void plain_fn(void)
 {
-	cgit_print_plain(ctx);
+	cgit_print_plain();
 }
 
-static void refs_fn(struct cgit_context *ctx)
+static void refs_fn(void)
 {
 	cgit_print_refs();
 }
 
-static void snapshot_fn(struct cgit_context *ctx)
+static void snapshot_fn(void)
 {
-	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1, ctx->qry.path,
-			    ctx->repo->snapshots, ctx->qry.nohead);
+	cgit_print_snapshot(ctx.qry.head, ctx.qry.sha1, ctx.qry.path,
+			    ctx.repo->snapshots, ctx.qry.nohead);
 }
 
-static void stats_fn(struct cgit_context *ctx)
+static void stats_fn(void)
 {
-	cgit_show_stats(ctx);
+	cgit_show_stats();
 }
 
-static void summary_fn(struct cgit_context *ctx)
+static void summary_fn(void)
 {
 	cgit_print_summary();
 }
 
-static void tag_fn(struct cgit_context *ctx)
+static void tag_fn(void)
 {
-	cgit_print_tag(ctx->qry.sha1);
+	cgit_print_tag(ctx.qry.sha1);
 }
 
-static void tree_fn(struct cgit_context *ctx)
+static void tree_fn(void)
 {
-	cgit_print_tree(ctx->qry.sha1, ctx->qry.path);
+	cgit_print_tree(ctx.qry.sha1, ctx.qry.path);
 }
 
 #define def_cmd(name, want_repo, want_layout, want_vpath, is_clone) \
 	{#name, name##_fn, want_repo, want_layout, want_vpath, is_clone}
 
-struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
+struct cgit_cmd *cgit_get_cmd(void)
 {
 	static struct cgit_cmd cmds[] = {
 		def_cmd(HEAD, 1, 0, 0, 1),
@@ -165,15 +165,15 @@ struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
 	};
 	int i;
 
-	if (ctx->qry.page == NULL) {
-		if (ctx->repo)
-			ctx->qry.page = "summary";
+	if (ctx.qry.page == NULL) {
+		if (ctx.repo)
+			ctx.qry.page = "summary";
 		else
-			ctx->qry.page = "repolist";
+			ctx.qry.page = "repolist";
 	}
 
 	for (i = 0; i < sizeof(cmds)/sizeof(*cmds); i++)
-		if (!strcmp(ctx->qry.page, cmds[i].name))
+		if (!strcmp(ctx.qry.page, cmds[i].name))
 			return &cmds[i];
 	return NULL;
 }
diff --git a/cmd.h b/cmd.h
index eb5bc87..752f078 100644
--- a/cmd.h
+++ b/cmd.h
@@ -1,7 +1,7 @@
 #ifndef CMD_H
 #define CMD_H
 
-typedef void (*cgit_cmd_fn)(struct cgit_context *ctx);
+typedef void (*cgit_cmd_fn)(void);
 
 struct cgit_cmd {
 	const char *name;
@@ -12,6 +12,6 @@ struct cgit_cmd {
 		is_clone:1;
 };
 
-extern struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx);
+extern struct cgit_cmd *cgit_get_cmd(void);
 
 #endif /* CMD_H */
diff --git a/ui-atom.c b/ui-atom.c
index 838f220..b22d745 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -108,7 +108,7 @@ void cgit_print_atom(char *tip, char *path, int max_count)
 	host = cgit_hosturl();
 	ctx.page.mimetype = "text/xml";
 	ctx.page.charset = "utf-8";
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 	html("<feed xmlns='http://www.w3.org/2005/Atom'>\n");
 	html("<title>");
 	html_txt(ctx.repo->name);
diff --git a/ui-blob.c b/ui-blob.c
index 608926e..9c99519 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -164,6 +164,6 @@ void cgit_print_blob(const char *hex, char *path, const char *head, int file_onl
 			ctx.page.mimetype = "text/plain";
 	}
 	ctx.page.filename = path;
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 	html_raw(buf, size);
 }
diff --git a/ui-clone.c b/ui-clone.c
index 9d0d6ad..d25553b 100644
--- a/ui-clone.c
+++ b/ui-clone.c
@@ -29,22 +29,22 @@ static int print_ref_info(const char *refname, const unsigned char *sha1,
 	return 0;
 }
 
-static void print_pack_info(struct cgit_context *ctx)
+static void print_pack_info(void)
 {
 	struct packed_git *pack;
 	int ofs;
 
-	ctx->page.mimetype = "text/plain";
-	ctx->page.filename = "objects/info/packs";
-	cgit_print_http_headers(ctx);
-	ofs = strlen(ctx->repo->path) + strlen("/objects/pack/");
+	ctx.page.mimetype = "text/plain";
+	ctx.page.filename = "objects/info/packs";
+	cgit_print_http_headers();
+	ofs = strlen(ctx.repo->path) + strlen("/objects/pack/");
 	prepare_packed_git();
 	for (pack = packed_git; pack; pack = pack->next)
 		if (pack->pack_local)
 			htmlf("P %s\n", pack->pack_name + ofs);
 }
 
-static void send_file(struct cgit_context *ctx, char *path)
+static void send_file(char *path)
 {
 	struct stat st;
 
@@ -61,41 +61,41 @@ static void send_file(struct cgit_context *ctx, char *path)
 		}
 		return;
 	}
-	ctx->page.mimetype = "application/octet-stream";
-	ctx->page.filename = path;
-	if (prefixcmp(ctx->repo->path, path))
-		ctx->page.filename += strlen(ctx->repo->path) + 1;
-	cgit_print_http_headers(ctx);
+	ctx.page.mimetype = "application/octet-stream";
+	ctx.page.filename = path;
+	if (prefixcmp(ctx.repo->path, path))
+		ctx.page.filename += strlen(ctx.repo->path) + 1;
+	cgit_print_http_headers();
 	html_include(path);
 }
 
-void cgit_clone_info(struct cgit_context *ctx)
+void cgit_clone_info(void)
 {
-	if (!ctx->qry.path || strcmp(ctx->qry.path, "refs"))
+	if (!ctx.qry.path || strcmp(ctx.qry.path, "refs"))
 		return;
 
-	ctx->page.mimetype = "text/plain";
-	ctx->page.filename = "info/refs";
-	cgit_print_http_headers(ctx);
-	for_each_ref(print_ref_info, ctx);
+	ctx.page.mimetype = "text/plain";
+	ctx.page.filename = "info/refs";
+	cgit_print_http_headers();
+	for_each_ref(print_ref_info, NULL);
 }
 
-void cgit_clone_objects(struct cgit_context *ctx)
+void cgit_clone_objects(void)
 {
-	if (!ctx->qry.path) {
+	if (!ctx.qry.path) {
 		html_status(400, "Bad request", 0);
 		return;
 	}
 
-	if (!strcmp(ctx->qry.path, "info/packs")) {
-		print_pack_info(ctx);
+	if (!strcmp(ctx.qry.path, "info/packs")) {
+		print_pack_info();
 		return;
 	}
 
-	send_file(ctx, git_path("objects/%s", ctx->qry.path));
+	send_file(git_path("objects/%s", ctx.qry.path));
 }
 
-void cgit_clone_head(struct cgit_context *ctx)
+void cgit_clone_head(void)
 {
-	send_file(ctx, git_path("%s", "HEAD"));
+	send_file(git_path("%s", "HEAD"));
 }
diff --git a/ui-clone.h b/ui-clone.h
index 89cd4f1..3e460a3 100644
--- a/ui-clone.h
+++ b/ui-clone.h
@@ -1,8 +1,8 @@
 #ifndef UI_CLONE_H
 #define UI_CLONE_H
 
-void cgit_clone_info(struct cgit_context *ctx);
-void cgit_clone_objects(struct cgit_context *ctx);
-void cgit_clone_head(struct cgit_context *ctx);
+void cgit_clone_info(void);
+void cgit_clone_objects(void);
+void cgit_clone_head(void);
 
 #endif /* UI_CLONE_H */
diff --git a/ui-diff.c b/ui-diff.c
index 5ccd03e..71273aa 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -407,7 +407,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
 		diff_setup_done(&diffopt);
 
 		ctx.page.mimetype = "text/plain";
-		cgit_print_http_headers(&ctx);
+		cgit_print_http_headers();
 		if (old_tree_sha1) {
 			diff_tree_sha1(old_tree_sha1, new_tree_sha1, "",
 				       &diffopt);
diff --git a/ui-patch.c b/ui-patch.c
index 3086608..6878a46 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -59,7 +59,7 @@ void cgit_print_patch(const char *new_rev, const char *old_rev,
 	patchname = fmt("%s.patch", rev_range);
 	ctx.page.mimetype = "text/plain";
 	ctx.page.filename = patchname;
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 
 	if (ctx.cfg.noplainemail) {
 		rev_argv[2] = "--format=format:From %H Mon Sep 17 00:00:00 "
diff --git a/ui-plain.c b/ui-plain.c
index 68e0387..30fff89 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -103,7 +103,7 @@ static int print_object(const unsigned char *sha1, const char *path)
 	ctx.page.filename = path;
 	ctx.page.size = size;
 	ctx.page.etag = sha1_to_hex(sha1);
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 	html_raw(buf, size);
 	/* If we allocated this, then casting away const is safe. */
 	if (freemime)
@@ -128,7 +128,7 @@ static void print_dir(const unsigned char *sha1, const char *base,
 	fullpath = buildpath(base, baselen, path);
 	slash = (fullpath[0] == '/' ? "" : "/");
 	ctx.page.etag = sha1_to_hex(sha1);
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 	htmlf("<html><head><title>%s", slash);
 	html_txt(fullpath);
 	htmlf("</title></head>\n<body>\n<h2>%s", slash);
@@ -206,14 +206,14 @@ static int basedir_len(const char *path)
 	return 0;
 }
 
-void cgit_print_plain(struct cgit_context *ctx)
+void cgit_print_plain(void)
 {
-	const char *rev = ctx->qry.sha1;
+	const char *rev = ctx.qry.sha1;
 	unsigned char sha1[20];
 	struct commit *commit;
 	struct pathspec_item path_items = {
-		.match = ctx->qry.path,
-		.len = ctx->qry.path ? strlen(ctx->qry.path) : 0
+		.match = ctx.qry.path,
+		.len = ctx.qry.path ? strlen(ctx.qry.path) : 0
 	};
 	struct pathspec paths = {
 		.nr = 1,
@@ -224,7 +224,7 @@ void cgit_print_plain(struct cgit_context *ctx)
 	};
 
 	if (!rev)
-		rev = ctx->qry.head;
+		rev = ctx.qry.head;
 
 	if (get_sha1(rev, sha1)) {
 		html_status(404, "Not found", 0);
diff --git a/ui-plain.h b/ui-plain.h
index 4373118..5bff07b 100644
--- a/ui-plain.h
+++ b/ui-plain.h
@@ -1,6 +1,6 @@
 #ifndef UI_PLAIN_H
 #define UI_PLAIN_H
 
-extern void cgit_print_plain(struct cgit_context *ctx);
+extern void cgit_print_plain(void);
 
 #endif /* UI_PLAIN_H */
diff --git a/ui-repolist.c b/ui-repolist.c
index f9cb21a..92e80cf 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -259,9 +259,9 @@ void cgit_print_repolist()
 		++columns;
 
 	ctx.page.title = ctx.cfg.root_title;
-	cgit_print_http_headers(&ctx);
-	cgit_print_docstart(&ctx);
-	cgit_print_pageheader(&ctx);
+	cgit_print_http_headers();
+	cgit_print_docstart();
+	cgit_print_pageheader();
 
 	if (ctx.cfg.index_header)
 		html_include(ctx.cfg.index_header);
diff --git a/ui-shared.c b/ui-shared.c
index 0838e18..070971f 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -436,59 +436,58 @@ void cgit_stats_link(const char *name, const char *title, const char *class,
 	reporevlink("stats", name, title, class, head, NULL, path);
 }
 
-static void cgit_self_link(char *name, const char *title, const char *class,
-			   struct cgit_context *ctx)
-{
-	if (!strcmp(ctx->qry.page, "repolist"))
-		cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
-				ctx->qry.ofs);
-	else if (!strcmp(ctx->qry.page, "summary"))
-		cgit_summary_link(name, title, class, ctx->qry.head);
-	else if (!strcmp(ctx->qry.page, "tag"))
-		cgit_tag_link(name, title, class, ctx->qry.head,
-			      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
-	else if (!strcmp(ctx->qry.page, "tree"))
-		cgit_tree_link(name, title, class, ctx->qry.head,
-			       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-			       ctx->qry.path);
-	else if (!strcmp(ctx->qry.page, "plain"))
-		cgit_plain_link(name, title, class, ctx->qry.head,
-				ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-				ctx->qry.path);
-	else if (!strcmp(ctx->qry.page, "log"))
-		cgit_log_link(name, title, class, ctx->qry.head,
-			      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-			      ctx->qry.path, ctx->qry.ofs,
-			      ctx->qry.grep, ctx->qry.search,
-			      ctx->qry.showmsg);
-	else if (!strcmp(ctx->qry.page, "commit"))
-		cgit_commit_link(name, title, class, ctx->qry.head,
-				 ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-				 ctx->qry.path, 0);
-	else if (!strcmp(ctx->qry.page, "patch"))
-		cgit_patch_link(name, title, class, ctx->qry.head,
-				ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-				ctx->qry.path);
-	else if (!strcmp(ctx->qry.page, "refs"))
-		cgit_refs_link(name, title, class, ctx->qry.head,
-			       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-			       ctx->qry.path);
-	else if (!strcmp(ctx->qry.page, "snapshot"))
-		cgit_snapshot_link(name, title, class, ctx->qry.head,
-				   ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
-				   ctx->qry.path);
-	else if (!strcmp(ctx->qry.page, "diff"))
-		cgit_diff_link(name, title, class, ctx->qry.head,
-			       ctx->qry.sha1, ctx->qry.sha2,
-			       ctx->qry.path, 0);
-	else if (!strcmp(ctx->qry.page, "stats"))
-		cgit_stats_link(name, title, class, ctx->qry.head,
-				ctx->qry.path);
+static void cgit_self_link(char *name, const char *title, const char *class)
+{
+	if (!strcmp(ctx.qry.page, "repolist"))
+		cgit_index_link(name, title, class, ctx.qry.search, ctx.qry.sort,
+				ctx.qry.ofs);
+	else if (!strcmp(ctx.qry.page, "summary"))
+		cgit_summary_link(name, title, class, ctx.qry.head);
+	else if (!strcmp(ctx.qry.page, "tag"))
+		cgit_tag_link(name, title, class, ctx.qry.head,
+			      ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL);
+	else if (!strcmp(ctx.qry.page, "tree"))
+		cgit_tree_link(name, title, class, ctx.qry.head,
+			       ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			       ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "plain"))
+		cgit_plain_link(name, title, class, ctx.qry.head,
+				ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "log"))
+		cgit_log_link(name, title, class, ctx.qry.head,
+			      ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			      ctx.qry.path, ctx.qry.ofs,
+			      ctx.qry.grep, ctx.qry.search,
+			      ctx.qry.showmsg);
+	else if (!strcmp(ctx.qry.page, "commit"))
+		cgit_commit_link(name, title, class, ctx.qry.head,
+				 ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				 ctx.qry.path, 0);
+	else if (!strcmp(ctx.qry.page, "patch"))
+		cgit_patch_link(name, title, class, ctx.qry.head,
+				ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "refs"))
+		cgit_refs_link(name, title, class, ctx.qry.head,
+			       ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			       ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "snapshot"))
+		cgit_snapshot_link(name, title, class, ctx.qry.head,
+				   ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				   ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "diff"))
+		cgit_diff_link(name, title, class, ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.sha2,
+			       ctx.qry.path, 0);
+	else if (!strcmp(ctx.qry.page, "stats"))
+		cgit_stats_link(name, title, class, ctx.qry.head,
+				ctx.qry.path);
 	else {
 		/* Don't known how to make link for this page */
-		repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
+		repolink(title, class, ctx.qry.page, ctx.qry.head, ctx.qry.path);
 		html("><!-- cgit_self_link() doesn't know how to make link for page '");
-		html_txt(ctx->qry.page);
+		html_txt(ctx.qry.page);
 		html("' -->");
 		html_txt(name);
 		html("</a>");
@@ -632,39 +631,39 @@ void cgit_print_age(time_t t, time_t max_relative, const char *format)
 	      secs * 1.0 / TM_YEAR);
 }
 
-void cgit_print_http_headers(struct cgit_context *ctx)
+void cgit_print_http_headers(void)
 {
-	if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
+	if (ctx.env.no_http && !strcmp(ctx.env.no_http, "1"))
 		return;
 
-	if (ctx->page.status)
-		htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
-	if (ctx->page.mimetype && ctx->page.charset)
-		htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
-		      ctx->page.charset);
-	else if (ctx->page.mimetype)
-		htmlf("Content-Type: %s\n", ctx->page.mimetype);
-	if (ctx->page.size)
-		htmlf("Content-Length: %zd\n", ctx->page.size);
-	if (ctx->page.filename)
+	if (ctx.page.status)
+		htmlf("Status: %d %s\n", ctx.page.status, ctx.page.statusmsg);
+	if (ctx.page.mimetype && ctx.page.charset)
+		htmlf("Content-Type: %s; charset=%s\n", ctx.page.mimetype,
+		      ctx.page.charset);
+	else if (ctx.page.mimetype)
+		htmlf("Content-Type: %s\n", ctx.page.mimetype);
+	if (ctx.page.size)
+		htmlf("Content-Length: %zd\n", ctx.page.size);
+	if (ctx.page.filename)
 		htmlf("Content-Disposition: inline; filename=\"%s\"\n",
-		      ctx->page.filename);
-	if (!ctx->env.authenticated)
+		      ctx.page.filename);
+	if (!ctx.env.authenticated)
 		html("Cache-Control: no-cache, no-store\n");
-	htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
-	htmlf("Expires: %s\n", http_date(ctx->page.expires));
-	if (ctx->page.etag)
-		htmlf("ETag: \"%s\"\n", ctx->page.etag);
+	htmlf("Last-Modified: %s\n", http_date(ctx.page.modified));
+	htmlf("Expires: %s\n", http_date(ctx.page.expires));
+	if (ctx.page.etag)
+		htmlf("ETag: \"%s\"\n", ctx.page.etag);
 	html("\n");
-	if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
+	if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
 		exit(0);
 }
 
-void cgit_print_docstart(struct cgit_context *ctx)
+void cgit_print_docstart(void)
 {
-	if (ctx->cfg.embedded) {
-		if (ctx->cfg.header)
-			html_include(ctx->cfg.header);
+	if (ctx.cfg.embedded) {
+		if (ctx.cfg.header)
+			html_include(ctx.cfg.header);
 		return;
 	}
 
@@ -673,37 +672,37 @@ void cgit_print_docstart(struct cgit_context *ctx)
 	html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 	html("<head>\n");
 	html("<title>");
-	html_txt(ctx->page.title);
+	html_txt(ctx.page.title);
 	html("</title>\n");
 	htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
-	if (ctx->cfg.robots && *ctx->cfg.robots)
-		htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
+	if (ctx.cfg.robots && *ctx.cfg.robots)
+		htmlf("<meta name='robots' content='%s'/>\n", ctx.cfg.robots);
 	html("<link rel='stylesheet' type='text/css' href='");
-	html_attr(ctx->cfg.css);
+	html_attr(ctx.cfg.css);
 	html("'/>\n");
-	if (ctx->cfg.favicon) {
+	if (ctx.cfg.favicon) {
 		html("<link rel='shortcut icon' href='");
-		html_attr(ctx->cfg.favicon);
+		html_attr(ctx.cfg.favicon);
 		html("'/>\n");
 	}
-	if (host && ctx->repo && ctx->qry.head) {
+	if (host && ctx.repo && ctx.qry.head) {
 		struct strbuf sb = STRBUF_INIT;
-		strbuf_addf(&sb, "h=%s", ctx->qry.head);
+		strbuf_addf(&sb, "h=%s", ctx.qry.head);
 
 		html("<link rel='alternate' title='Atom feed' href='");
 		html(cgit_httpscheme());
 		html_attr(cgit_hosturl());
-		html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
+		html_attr(cgit_fileurl(ctx.repo->url, "atom", ctx.qry.vpath,
 				       sb.buf));
 		html("' type='application/atom+xml'/>\n");
 		strbuf_release(&sb);
 	}
-	if (ctx->cfg.head_include)
-		html_include(ctx->cfg.head_include);
+	if (ctx.cfg.head_include)
+		html_include(ctx.cfg.head_include);
 	html("</head>\n");
 	html("<body>\n");
-	if (ctx->cfg.header)
-		html_include(ctx->cfg.header);
+	if (ctx.cfg.header)
+		html_include(ctx.cfg.header);
 }
 
 void cgit_print_docend()
@@ -767,47 +766,47 @@ void cgit_add_hidden_formfields(int incl_head, int incl_search,
 	}
 }
 
-static const char *hc(struct cgit_context *ctx, const char *page)
+static const char *hc(const char *page)
 {
-	return strcmp(ctx->qry.page, page) ? NULL : "active";
+	return strcmp(ctx.qry.page, page) ? NULL : "active";
 }
 
-static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
+static void cgit_print_path_crumbs(char *path)
 {
-	char *old_path = ctx->qry.path;
+	char *old_path = ctx.qry.path;
 	char *p = path, *q, *end = path + strlen(path);
 
-	ctx->qry.path = NULL;
-	cgit_self_link("root", NULL, NULL, ctx);
-	ctx->qry.path = p = path;
+	ctx.qry.path = NULL;
+	cgit_self_link("root", NULL, NULL);
+	ctx.qry.path = p = path;
 	while (p < end) {
 		if (!(q = strchr(p, '/')))
 			q = end;
 		*q = '\0';
 		html_txt("/");
-		cgit_self_link(p, NULL, NULL, ctx);
+		cgit_self_link(p, NULL, NULL);
 		if (q < end)
 			*q = '/';
 		p = q + 1;
 	}
-	ctx->qry.path = old_path;
+	ctx.qry.path = old_path;
 }
 
-static void print_header(struct cgit_context *ctx)
+static void print_header(void)
 {
 	char *logo = NULL, *logo_link = NULL;
 
 	html("<table id='header'>\n");
 	html("<tr>\n");
 
-	if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
-		logo = ctx->repo->logo;
+	if (ctx.repo && ctx.repo->logo && *ctx.repo->logo)
+		logo = ctx.repo->logo;
 	else
-		logo = ctx->cfg.logo;
-	if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
-		logo_link = ctx->repo->logo_link;
+		logo = ctx.cfg.logo;
+	if (ctx.repo && ctx.repo->logo_link && *ctx.repo->logo_link)
+		logo_link = ctx.repo->logo_link;
 	else
-		logo_link = ctx->cfg.logo_link;
+		logo_link = ctx.cfg.logo_link;
 	if (logo && *logo) {
 		html("<td class='logo' rowspan='2'><a href='");
 		if (logo_link && *logo_link)
@@ -820,104 +819,104 @@ static void print_header(struct cgit_context *ctx)
 	}
 
 	html("<td class='main'>");
-	if (ctx->repo) {
+	if (ctx.repo) {
 		cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 		html(" : ");
-		cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
-		if (ctx->env.authenticated) {
+		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+		if (ctx.env.authenticated) {
 			html("</td><td class='form'>");
 			html("<form method='get' action=''>\n");
-			cgit_add_hidden_formfields(0, 1, ctx->qry.page);
+			cgit_add_hidden_formfields(0, 1, ctx.qry.page);
 			html("<select name='h' onchange='this.form.submit();'>\n");
-			for_each_branch_ref(print_branch_option, ctx->qry.head);
+			for_each_branch_ref(print_branch_option, ctx.qry.head);
 			html("</select> ");
 			html("<input type='submit' name='' value='switch'/>");
 			html("</form>");
 		}
 	} else
-		html_txt(ctx->cfg.root_title);
+		html_txt(ctx.cfg.root_title);
 	html("</td></tr>\n");
 
 	html("<tr><td class='sub'>");
-	if (ctx->repo) {
-		html_txt(ctx->repo->desc);
+	if (ctx.repo) {
+		html_txt(ctx.repo->desc);
 		html("</td><td class='sub right'>");
-		html_txt(ctx->repo->owner);
+		html_txt(ctx.repo->owner);
 	} else {
-		if (ctx->cfg.root_desc)
-			html_txt(ctx->cfg.root_desc);
-		else if (ctx->cfg.index_info)
-			html_include(ctx->cfg.index_info);
+		if (ctx.cfg.root_desc)
+			html_txt(ctx.cfg.root_desc);
+		else if (ctx.cfg.index_info)
+			html_include(ctx.cfg.index_info);
 	}
 	html("</td></tr></table>\n");
 }
 
-void cgit_print_pageheader(struct cgit_context *ctx)
+void cgit_print_pageheader(void)
 {
 	html("<div id='cgit'>");
-	if (!ctx->env.authenticated || !ctx->cfg.noheader)
-		print_header(ctx);
+	if (!ctx.env.authenticated || !ctx.cfg.noheader)
+		print_header();
 
 	html("<table class='tabs'><tr><td>\n");
-	if (ctx->env.authenticated && ctx->repo) {
-		cgit_summary_link("summary", NULL, hc(ctx, "summary"),
-				  ctx->qry.head);
-		cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
-			       ctx->qry.sha1, NULL);
-		cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
-			      NULL, ctx->qry.vpath, 0, NULL, NULL,
-			      ctx->qry.showmsg);
-		cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
-			       ctx->qry.sha1, ctx->qry.vpath);
-		cgit_commit_link("commit", NULL, hc(ctx, "commit"),
-				 ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
-		cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
-			       ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
-		if (ctx->repo->max_stats)
-			cgit_stats_link("stats", NULL, hc(ctx, "stats"),
-					ctx->qry.head, ctx->qry.vpath);
-		if (ctx->repo->readme.nr)
+	if (ctx.env.authenticated && ctx.repo) {
+		cgit_summary_link("summary", NULL, hc("summary"),
+				  ctx.qry.head);
+		cgit_refs_link("refs", NULL, hc("refs"), ctx.qry.head,
+			       ctx.qry.sha1, NULL);
+		cgit_log_link("log", NULL, hc("log"), ctx.qry.head,
+			      NULL, ctx.qry.vpath, 0, NULL, NULL,
+			      ctx.qry.showmsg);
+		cgit_tree_link("tree", NULL, hc("tree"), ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.vpath);
+		cgit_commit_link("commit", NULL, hc("commit"),
+				 ctx.qry.head, ctx.qry.sha1, ctx.qry.vpath, 0);
+		cgit_diff_link("diff", NULL, hc("diff"), ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.sha2, ctx.qry.vpath, 0);
+		if (ctx.repo->max_stats)
+			cgit_stats_link("stats", NULL, hc("stats"),
+					ctx.qry.head, ctx.qry.vpath);
+		if (ctx.repo->readme.nr)
 			reporevlink("about", "about", NULL,
-				    hc(ctx, "about"), ctx->qry.head, NULL,
+				    hc("about"), ctx.qry.head, NULL,
 				    NULL);
 		html("</td><td class='form'>");
 		html("<form class='right' method='get' action='");
-		if (ctx->cfg.virtual_root)
-			html_url_path(cgit_fileurl(ctx->qry.repo, "log",
-						   ctx->qry.vpath, NULL));
+		if (ctx.cfg.virtual_root)
+			html_url_path(cgit_fileurl(ctx.qry.repo, "log",
+						   ctx.qry.vpath, NULL));
 		html("'>\n");
 		cgit_add_hidden_formfields(1, 0, "log");
 		html("<select name='qt'>\n");
-		html_option("grep", "log msg", ctx->qry.grep);
-		html_option("author", "author", ctx->qry.grep);
-		html_option("committer", "committer", ctx->qry.grep);
-		html_option("range", "range", ctx->qry.grep);
+		html_option("grep", "log msg", ctx.qry.grep);
+		html_option("author", "author", ctx.qry.grep);
+		html_option("committer", "committer", ctx.qry.grep);
+		html_option("range", "range", ctx.qry.grep);
 		html("</select>\n");
 		html("<input class='txt' type='text' size='10' name='q' value='");
-		html_attr(ctx->qry.search);
+		html_attr(ctx.qry.search);
 		html("'/>\n");
 		html("<input type='submit' value='search'/>\n");
 		html("</form>\n");
-	} else if (ctx->env.authenticated) {
-		site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
-		if (ctx->cfg.root_readme)
-			site_link("about", "about", NULL, hc(ctx, "about"),
+	} else if (ctx.env.authenticated) {
+		site_link(NULL, "index", NULL, hc("repolist"), NULL, NULL, 0);
+		if (ctx.cfg.root_readme)
+			site_link("about", "about", NULL, hc("about"),
 				  NULL, NULL, 0);
 		html("</td><td class='form'>");
 		html("<form method='get' action='");
 		html_attr(cgit_rooturl());
 		html("'>\n");
 		html("<input type='text' name='q' size='10' value='");
-		html_attr(ctx->qry.search);
+		html_attr(ctx.qry.search);
 		html("'/>\n");
 		html("<input type='submit' value='search'/>\n");
 		html("</form>");
 	}
 	html("</td></tr></table>\n");
-	if (ctx->env.authenticated && ctx->qry.vpath) {
+	if (ctx.env.authenticated && ctx.qry.vpath) {
 		html("<div class='path'>");
 		html("path: ");
-		cgit_print_path_crumbs(ctx, ctx->qry.vpath);
+		cgit_print_path_crumbs(ctx.qry.vpath);
 		html("</div>");
 	}
 	html("<div class='content'>");
diff --git a/ui-shared.h b/ui-shared.h
index 889c28f..3e7a91b 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -59,10 +59,10 @@ __attribute__((format (printf,1,0)))
 extern void cgit_vprint_error(const char *fmt, va_list ap);
 extern void cgit_print_date(time_t secs, const char *format, int local_time);
 extern void cgit_print_age(time_t t, time_t max_relative, const char *format);
-extern void cgit_print_http_headers(struct cgit_context *ctx);
-extern void cgit_print_docstart(struct cgit_context *ctx);
+extern void cgit_print_http_headers(void);
+extern void cgit_print_docstart(void);
 extern void cgit_print_docend();
-extern void cgit_print_pageheader(struct cgit_context *ctx);
+extern void cgit_print_pageheader(void);
 extern void cgit_print_filemode(unsigned short mode);
 extern void cgit_print_snapshot_links(const char *repo, const char *head,
 				      const char *hex, int snapshots);
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 7115ec4..582dc31 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -121,7 +121,7 @@ static int make_snapshot(const struct cgit_snapshot_format *format,
 	}
 	ctx.page.mimetype = xstrdup(format->mimetype);
 	ctx.page.filename = xstrdup(filename);
-	cgit_print_http_headers(&ctx);
+	cgit_print_http_headers();
 	format->write_func(hex, prefix);
 	return 0;
 }
@@ -183,9 +183,9 @@ static void show_error(char *fmt, ...)
 	va_list ap;
 
 	ctx.page.mimetype = "text/html";
-	cgit_print_http_headers(&ctx);
-	cgit_print_docstart(&ctx);
-	cgit_print_pageheader(&ctx);
+	cgit_print_http_headers();
+	cgit_print_docstart();
+	cgit_print_pageheader();
 	va_start(ap, fmt);
 	cgit_vprint_error(fmt, ap);
 	va_end(ap);
diff --git a/ui-stats.c b/ui-stats.c
index 84b247c..bc27308 100644
--- a/ui-stats.c
+++ b/ui-stats.c
@@ -209,13 +209,12 @@ static int cmp_total_commits(const void *a1, const void *a2)
 /* Walk the commit DAG and collect number of commits per author per
  * timeperiod into a nested string_list collection.
  */
-static struct string_list collect_stats(struct cgit_context *ctx,
-					struct cgit_period *period)
+static struct string_list collect_stats(struct cgit_period *period)
 {
 	struct string_list authors;
 	struct rev_info rev;
 	struct commit *commit;
-	const char *argv[] = {NULL, ctx->qry.head, NULL, NULL, NULL, NULL};
+	const char *argv[] = {NULL, ctx.qry.head, NULL, NULL, NULL, NULL};
 	int argc = 3;
 	time_t now;
 	long i;
@@ -229,9 +228,9 @@ static struct string_list collect_stats(struct cgit_context *ctx,
 		period->dec(tm);
 	strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm);
 	argv[2] = xstrdup(fmt("--since=%s", tmp));
-	if (ctx->qry.path) {
+	if (ctx.qry.path) {
 		argv[3] = "--";
-		argv[4] = ctx->qry.path;
+		argv[4] = ctx.qry.path;
 		argc += 2;
 	}
 	init_revisions(&rev, NULL);
@@ -360,30 +359,30 @@ static void print_authors(struct string_list *authors, int top,
  * for each author is another string_list which is used to calculate the
  * number of commits per time-interval.
  */
-void cgit_show_stats(struct cgit_context *ctx)
+void cgit_show_stats(void)
 {
 	struct string_list authors;
 	struct cgit_period *period;
 	int top, i;
 	const char *code = "w";
 
-	if (ctx->qry.period)
-		code = ctx->qry.period;
+	if (ctx.qry.period)
+		code = ctx.qry.period;
 
 	i = cgit_find_stats_period(code, &period);
 	if (!i) {
 		cgit_print_error("Unknown statistics type: %c", code[0]);
 		return;
 	}
-	if (i > ctx->repo->max_stats) {
+	if (i > ctx.repo->max_stats) {
 		cgit_print_error("Statistics type disabled: %s", period->name);
 		return;
 	}
-	authors = collect_stats(ctx, period);
+	authors = collect_stats(period);
 	qsort(authors.items, authors.nr, sizeof(struct string_list_item),
 		cmp_total_commits);
 
-	top = ctx->qry.ofs;
+	top = ctx.qry.ofs;
 	if (!top)
 		top = 10;
 
@@ -392,10 +391,10 @@ void cgit_show_stats(struct cgit_context *ctx)
 	html("<form method='get' action=''>");
 	cgit_add_hidden_formfields(1, 0, "stats");
 	html("<table><tr><td colspan='2'/></tr>");
-	if (ctx->repo->max_stats > 1) {
+	if (ctx.repo->max_stats > 1) {
 		html("<tr><td class='label'>Period:</td>");
 		html("<td class='ctrl'><select name='period' onchange='this.form.submit();'>");
-		for (i = 0; i < ctx->repo->max_stats; i++)
+		for (i = 0; i < ctx.repo->max_stats; i++)
 			html_option(fmt("%c", periods[i].code),
 				    periods[i].name, fmt("%c", period->code));
 		html("</select></td></tr>");
@@ -414,9 +413,9 @@ void cgit_show_stats(struct cgit_context *ctx)
 	html("</form>");
 	html("</div>");
 	htmlf("<h2>Commits per author per %s", period->name);
-	if (ctx->qry.path) {
+	if (ctx.qry.path) {
 		html(" (path '");
-		html_txt(ctx->qry.path);
+		html_txt(ctx.qry.path);
 		html("')");
 	}
 	html("</h2>");
diff --git a/ui-stats.h b/ui-stats.h
index f0761ba..341ab13 100644
--- a/ui-stats.h
+++ b/ui-stats.h
@@ -23,6 +23,6 @@ struct cgit_period {
 extern int cgit_find_stats_period(const char *expr, struct cgit_period **period);
 extern const char *cgit_find_stats_periodname(int idx);
 
-extern void cgit_show_stats(struct cgit_context *ctx);
+extern void cgit_show_stats(void);
 
 #endif /* UI_STATS_H */
-- 
cgit v1.2.3-70-g09d2