29 files changed, 358 insertions, 189 deletions

diff --git a/Makefile b/Makefile
index 6dfc003..2612a75 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ htmldir = $(docdir)
 pdfdir = $(docdir)
 mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 2.30.0
+GIT_VER = 2.45.0
 GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.xz
 INSTALL = install
 COPYTREE = cp -r
@@ -87,6 +87,7 @@ install: all
 	$(INSTALL) -m 0755 cgit $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
 	$(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_DATA_PATH)
 	$(INSTALL) -m 0644 cgit.css $(DESTDIR)$(CGIT_DATA_PATH)/cgit.css
+	$(INSTALL) -m 0644 cgit.js $(DESTDIR)$(CGIT_DATA_PATH)/cgit.js
 	$(INSTALL) -m 0644 cgit.png $(DESTDIR)$(CGIT_DATA_PATH)/cgit.png
 	$(INSTALL) -m 0644 favicon.ico $(DESTDIR)$(CGIT_DATA_PATH)/favicon.ico
 	$(INSTALL) -m 0644 robots.txt $(DESTDIR)$(CGIT_DATA_PATH)/robots.txt
diff --git a/cache.c b/cache.c
index 55199e8..1c843ba 100644
--- a/cache.c
+++ b/cache.c
@@ -85,40 +85,45 @@ static int close_slot(struct cache_slot *slot)
 /* Print the content of the active cache slot (but skip the key). */
 static int print_slot(struct cache_slot *slot)
 {
+	off_t off;
 #ifdef HAVE_LINUX_SENDFILE
-	off_t start_off;
-	int ret;
+	off_t size;
+#endif
+
+	off = slot->keylen + 1;
 
-	start_off = slot->keylen + 1;
+#ifdef HAVE_LINUX_SENDFILE
+	size = slot->cache_st.st_size;
 
 	do {
-		ret = sendfile(STDOUT_FILENO, slot->cache_fd, &start_off,
-				slot->cache_st.st_size - start_off);
+		ssize_t ret;
+		ret = sendfile(STDOUT_FILENO, slot->cache_fd, &off, size - off);
 		if (ret < 0) {
 			if (errno == EAGAIN || errno == EINTR)
 				continue;
+			/* Fall back to read/write on EINVAL or ENOSYS */
+			if (errno == EINVAL || errno == ENOSYS)
+				break;
 			return errno;
 		}
-		return 0;
+		if (off == size)
+			return 0;
 	} while (1);
-#else
-	ssize_t i, j;
+#endif
 
-	i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET);
-	if (i != slot->keylen + 1)
+	if (lseek(slot->cache_fd, off, SEEK_SET) != off)
 		return errno;
 
 	do {
-		i = j = xread(slot->cache_fd, slot->buf, sizeof(slot->buf));
-		if (i > 0)
-			j = xwrite(STDOUT_FILENO, slot->buf, i);
-	} while (i > 0 && j == i);
-
-	if (i < 0 || j != i)
-		return errno;
-	else
-		return 0;
-#endif
+		ssize_t ret;
+		ret = xread(slot->cache_fd, slot->buf, sizeof(slot->buf));
+		if (ret < 0)
+			return errno;
+		if (ret == 0)
+			return 0;
+		if (write_in_full(STDOUT_FILENO, slot->buf, ret) < 0)
+			return errno;
+	} while (1);
 }
 
 /* Check if the slot has expired */
diff --git a/cgit.c b/cgit.c
index 08d81a1..e616292 100644
--- a/cgit.c
+++ b/cgit.c
@@ -142,7 +142,9 @@ static void config_cb(const char *name, const char *value)
 	else if (!strcmp(name, "root-readme"))
 		ctx.cfg.root_readme = xstrdup(value);
 	else if (!strcmp(name, "css"))
-		ctx.cfg.css = xstrdup(value);
+		string_list_append(&ctx.cfg.css, xstrdup(value));
+	else if (!strcmp(name, "js"))
+		string_list_append(&ctx.cfg.js, xstrdup(value));
 	else if (!strcmp(name, "favicon"))
 		ctx.cfg.favicon = xstrdup(value);
 	else if (!strcmp(name, "footer"))
@@ -237,9 +239,11 @@ static void config_cb(const char *name, const char *value)
 		ctx.cfg.max_repodesc_len = atoi(value);
 	else if (!strcmp(name, "max-blob-size"))
 		ctx.cfg.max_blob_size = atoi(value);
-	else if (!strcmp(name, "max-repo-count"))
+	else if (!strcmp(name, "max-repo-count")) {
 		ctx.cfg.max_repo_count = atoi(value);
-	else if (!strcmp(name, "max-commit-count"))
+		if (ctx.cfg.max_repo_count <= 0)
+			ctx.cfg.max_repo_count = INT_MAX;
+	} else if (!strcmp(name, "max-commit-count"))
 		ctx.cfg.max_commit_count = atoi(value);
 	else if (!strcmp(name, "project-list"))
 		ctx.cfg.project_list = xstrdup(expand_macros(value));
@@ -376,7 +380,6 @@ static void prepare_context(void)
 	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;
@@ -428,7 +431,7 @@ static void prepare_context(void)
 	ctx.page.modified = time(NULL);
 	ctx.page.expires = ctx.page.modified;
 	ctx.page.etag = NULL;
-	string_list_init(&ctx.cfg.mimetypes, 1);
+	string_list_init_dup(&ctx.cfg.mimetypes);
 	if (ctx.env.script_name)
 		ctx.cfg.script_name = xstrdup(ctx.env.script_name);
 	if (ctx.env.query_string)
@@ -507,9 +510,11 @@ static inline void parse_readme(const char *readme, char **filename, char **ref,
 	/* Check if the readme is tracked in the git repo. */
 	colon = strchr(readme, ':');
 	if (colon && strlen(colon) > 1) {
-		/* If it starts with a colon, we want to use
-		 * the default branch */
-		if (colon == readme && repo->defbranch)
+		/* If it starts with a colon, we want to use head given
+		 * from query or the default branch */
+		if (colon == readme && ctx.qry.head)
+			*ref = xstrdup(ctx.qry.head);
+		else if (colon == readme && repo->defbranch)
 			*ref = xstrdup(repo->defbranch);
 		else
 			*ref = xstrndup(readme, colon - readme);
@@ -626,7 +631,7 @@ static int prepare_repo_cmd(int nongit)
 		return 1;
 	}
 
-	if (get_oid(ctx.qry.head, &oid)) {
+	if (repo_get_oid(the_repository, ctx.qry.head, &oid)) {
 		char *old_head = ctx.qry.head;
 		ctx.qry.head = xstrdup(ctx.repo->defbranch);
 		cgit_print_error_page(404, "Not found",
diff --git a/cgit.css b/cgit.css
index dfa144d..1b848cf 100644
--- a/cgit.css
+++ b/cgit.css
@@ -363,6 +363,10 @@ div#cgit table.blame td.lines > div > pre {
 	top: 0;
 }
 
+div#cgit table.blame .oid {
+	font-size: 100%;
+}
+
 div#cgit table.bin-blob {
 	margin-top: 0.5em;
 	border: solid 1px black;
diff --git a/cgit.h b/cgit.h
index 69b5c13..dbc461f 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,30 +1,35 @@
 #ifndef CGIT_H
 #define CGIT_H
 
+#include <stdbool.h>
 
 #include <git-compat-util.h>
-#include <stdbool.h>
 
-#include <cache.h>
+#include <archive.h>
+#include <commit.h>
+#include <diffcore.h>
+#include <diff.h>
+#include <environment.h>
+#include <graph.h>
 #include <grep.h>
+#include <hex.h>
+#include <log-tree.h>
+#include <notes.h>
 #include <object.h>
+#include <object-name.h>
 #include <object-store.h>
-#include <tree.h>
-#include <commit.h>
-#include <tag.h>
-#include <diff.h>
-#include <diffcore.h>
-#include <strvec.h>
+#include <path.h>
 #include <refs.h>
 #include <revision.h>
-#include <log-tree.h>
-#include <archive.h>
+#include <setup.h>
 #include <string-list.h>
+#include <strvec.h>
+#include <tag.h>
+#include <tree.h>
+#include <utf8.h>
+#include <wrapper.h>
 #include <xdiff-interface.h>
 #include <xdiff/xdiff.h>
-#include <utf8.h>
-#include <notes.h>
-#include <graph.h>
 
 /* Add isgraph(x) to Git's sane ctype support (see git-compat-util.h) */
 #undef isgraph
@@ -195,7 +200,6 @@ struct cgit_config {
 	char *cache_root;
 	char *clone_prefix;
 	char *clone_url;
-	char *css;
 	char *favicon;
 	char *footer;
 	char *head_include;
@@ -206,6 +210,7 @@ struct cgit_config {
 	char *module_link;
 	char *project_list;
 	struct string_list readme;
+	struct string_list css;
 	char *robots;
 	char *root_title;
 	char *root_desc;
@@ -264,6 +269,7 @@ struct cgit_config {
 	int branch_sort;
 	int commit_sort;
 	struct string_list mimetypes;
+	struct string_list js;
 	struct cgit_filter *about_filter;
 	struct cgit_filter *commit_filter;
 	struct cgit_filter *source_filter;
diff --git a/cgit.js b/cgit.js
new file mode 100644
index 0000000..df3ad4e
--- /dev/null
+++ b/cgit.js
@@ -0,0 +1,68 @@
+/* cgit.js: javacript functions for cgit
+ *
+ * Copyright (C) 2006-2018 cgit Development Team <cgit@lists.zx2c4.com>
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
+(function () {
+
+/* This follows the logic and suffixes used in ui-shared.c */
+
+var age_classes = [ "age-mins", "age-hours", "age-days",    "age-weeks",    "age-months",    "age-years" ];
+var age_suffix =  [ "min.",     "hours",     "days",        "weeks",        "months",        "years",         "years" ];
+var age_next =    [ 60,         3600,        24 * 3600,     7 * 24 * 3600,  30 * 24 * 3600,  365 * 24 * 3600, 365 * 24 * 3600 ];
+var age_limit =   [ 7200,       24 * 7200,   7 * 24 * 7200, 30 * 24 * 7200, 365 * 25 * 7200, 365 * 25 * 7200 ];
+var update_next = [ 10,         5 * 60,      1800,          24 * 3600,      24 * 3600,       24 * 3600,       24 * 3600 ];
+
+function render_age(e, age) {
+	var t, n;
+
+	for (n = 0; n < age_classes.length; n++)
+		if (age < age_limit[n])
+			break;
+
+	t = Math.round(age / age_next[n]) + " " + age_suffix[n];
+
+	if (e.textContent != t) {
+		e.textContent = t;
+		if (n == age_classes.length)
+			n--;
+		if (e.className != age_classes[n])
+			e.className = age_classes[n];
+	}
+}
+
+function aging() {
+	var n, next = 24 * 3600,
+	    now_ut = Math.round((new Date().getTime() / 1000));
+
+	for (n = 0; n < age_classes.length; n++) {
+		var m, elems = document.getElementsByClassName(age_classes[n]);
+
+		if (elems.length && update_next[n] < next)
+			next = update_next[n];
+
+		for (m = 0; m < elems.length; m++) {
+			var age = now_ut - elems[m].getAttribute("data-ut");
+
+			render_age(elems[m], age);
+		}
+	}
+
+	/*
+	 * We only need to come back when the age might have changed.
+	 * Eg, if everything is counted in hours already, once per
+	 * 5 minutes is accurate enough.
+	 */
+
+	window.setTimeout(aging, next * 1000);
+}
+
+document.addEventListener("DOMContentLoaded", function() {
+	/* we can do the aging on DOM content load since no layout dependency */
+	aging();
+}, false);
+
+})();
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 33a6a8c..6f3e952 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -126,7 +126,8 @@ commit-sort::
 
 css::
 	Url which specifies the css document to include in all cgit pages.
-	Default value: "/cgit.css".
+	Default value: "/cgit.css".  May be given multiple times, each
+	css URL path is added in the head section of the document in turn.
 
 email-filter::
 	Specifies a command which will be invoked to format names and email
@@ -238,6 +239,11 @@ include::
 	Name of a configfile to include before the rest of the current config-
 	file is parsed. Default value: none. See also: "MACRO EXPANSION".
 
+js::
+	Url which specifies the javascript script document to include in all cgit
+	pages.  Default value: "/cgit.js".  Setting this to an empty string will
+	disable generation of the link to this file in the head section.
+
 local-time::
 	Flag which, if set to "1", makes cgit print commit and tag times in the
 	servers timezone. Default value: "0".
@@ -269,7 +275,8 @@ max-message-length::
 
 max-repo-count::
 	Specifies the number of entries to list per page on the	repository
-	index page. Default value: "50".
+	index page. The value "0" shows all repositories without limitation.
+	Default value: "50".
 
 max-repodesc-length::
 	Specifies the maximum number of repo description characters to display
@@ -579,11 +586,11 @@ repo.readme::
 	verbatim as the "About" page for this repo. You may also specify a
 	git refspec by head or by hash by prepending the refspec followed by
 	a colon. For example, "master:docs/readme.mkd". If the value begins
-	with a colon, i.e. ":docs/readme.rst", the default branch of the
-	repository will be used. Sharing any file will expose that entire
-	directory tree to the "/about/PATH" endpoints, so be sure that there
-	are no non-public files located in the same directory as the readme
-	file. Default value: <readme>.
+	with a colon, i.e. ":docs/readme.rst", the head giving in query or
+	the default branch of the repository will be used. Sharing any file
+	will expose that entire directory tree to the "/about/PATH" endpoints,
+	so be sure that there are no non-public files located in the same
+	directory as the readme file. Default value: <readme>.
 
 repo.section::
 	Override the current section name for this repository. Default value:
diff --git a/filters/html-converters/md2html b/filters/html-converters/md2html
index f505cb2..59f43a8 100755
--- a/filters/html-converters/md2html
+++ b/filters/html-converters/md2html
@@ -86,11 +86,7 @@ div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#
     margin: 15px 0;
 }
 .markdown-body hr {
-    background: transparent url("/dirty-shade.png") repeat-x 0 0;
-    border: 0 none;
-    color: #ccc;
-    height: 4px;
-    padding: 0;
+    border: 2px solid #ccc;
 }
 .markdown-body>h2:first-child, .markdown-body>h1:first-child, .markdown-body>h1:first-child+h2, .markdown-body>h3:first-child, .markdown-body>h4:first-child, .markdown-body>h5:first-child, .markdown-body>h6:first-child {
     margin-top: 0;
diff --git a/git b/git
-Subproject 71ca53e8125e36efbda17293c50027d31681a41
+Subproject 786a3e4b8d754d2b14b1208b98eeb0a554ef19a
diff --git a/html.c b/html.c
index 7f81965..0bac34b 100644
--- a/html.c
+++ b/html.c
@@ -59,7 +59,7 @@ char *fmt(const char *format, ...)
 	va_start(args, format);
 	len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
 	va_end(args);
-	if (len > sizeof(buf[bufidx])) {
+	if (len >= sizeof(buf[bufidx])) {
 		fprintf(stderr, "[html.c] string truncated: %s\n", format);
 		exit(1);
 	}
diff --git a/parsing.c b/parsing.c
index 72b59b3..dc44ffd 100644
--- a/parsing.c
+++ b/parsing.c
@@ -198,7 +198,7 @@ struct taginfo *cgit_parse_tag(struct tag *tag)
 	const char *p;
 	struct taginfo *ret = NULL;
 
-	data = read_object_file(&tag->object.oid, &type, &size);
+	data = repo_read_object_file(the_repository, &tag->object.oid, &type, &size);
 	if (!data || type != OBJ_TAG)
 		goto cleanup;
 
diff --git a/robots.txt b/robots.txt
index 4ce948f..1b33266 100644
--- a/robots.txt
+++ b/robots.txt
@@ -1,3 +1,4 @@
 User-agent: *
 Disallow: /*/snapshot/*
+Disallow: /*/blame/*
 Allow: /
diff --git a/scan-tree.c b/scan-tree.c
index 6a2f65a..84da86e 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -54,7 +54,7 @@ static void scan_tree_repo_config(const char *name, const char *value)
 	config_fn(repo, name, value);
 }
 
-static int gitconfig_config(const char *key, const char *value, void *cb)
+static int gitconfig_config(const char *key, const char *value, const struct config_context *, void *cb)
 {
 	const char *name;
 
diff --git a/shared.c b/shared.c
index 8115469..26b6ddb 100644
--- a/shared.c
+++ b/shared.c
@@ -241,7 +241,7 @@ static int load_mmfile(mmfile_t *file, const struct object_id *oid)
 		file->ptr = (char *)"";
 		file->size = 0;
 	} else {
-		file->ptr = read_object_file(oid, &type,
+		file->ptr = repo_read_object_file(the_repository, oid, &type,
 		                           (unsigned long *)&file->size);
 	}
 	return 1;
@@ -341,10 +341,9 @@ void cgit_diff_tree(const struct object_id *old_oid,
 		    filepair_fn fn, const char *prefix, int ignorews)
 {
 	struct diff_options opt;
-	struct pathspec_item item;
+	struct pathspec_item *item;
 
-	memset(&item, 0, sizeof(item));
-	diff_setup(&opt);
+	repo_diff_setup(the_repository, &opt);
 	opt.output_format = DIFF_FORMAT_CALLBACK;
 	opt.detect_rename = 1;
 	opt.rename_limit = ctx.cfg.renamelimit;
@@ -354,10 +353,11 @@ void cgit_diff_tree(const struct object_id *old_oid,
 	opt.format_callback = cgit_diff_tree_cb;
 	opt.format_callback_data = fn;
 	if (prefix) {
-		item.match = xstrdup(prefix);
-		item.len = strlen(prefix);
+		item = xcalloc(1, sizeof(*item));
+		item->match = xstrdup(prefix);
+		item->len = strlen(prefix);
 		opt.pathspec.nr = 1;
-		opt.pathspec.items = &item;
+		opt.pathspec.items = item;
 	}
 	diff_setup_done(&opt);
 
@@ -367,8 +367,6 @@ void cgit_diff_tree(const struct object_id *old_oid,
 		diff_root_tree_oid(new_oid, "", &opt);
 	diffcore_std(&opt);
 	diff_flush(&opt);
-
-	free(item.match);
 }
 
 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
@@ -541,7 +539,9 @@ char *expand_macros(const char *txt)
 
 char *get_mimetype_for_filename(const char *filename)
 {
-	char *ext, *mimetype, *token, line[1024], *saveptr;
+	char *ext, *mimetype, line[1024];
+	struct string_list list = STRING_LIST_INIT_NODUP;
+	int i;
 	FILE *file;
 	struct string_list_item *mime;
 
@@ -566,13 +566,16 @@ char *get_mimetype_for_filename(const char *filename)
 	while (fgets(line, sizeof(line), file)) {
 		if (!line[0] || line[0] == '#')
 			continue;
-		mimetype = strtok_r(line, " \t\r\n", &saveptr);
-		while ((token = strtok_r(NULL, " \t\r\n", &saveptr))) {
-			if (!strcasecmp(ext, token)) {
+		string_list_split_in_place(&list, line, " \t\r\n", -1);
+		string_list_remove_empty_items(&list, 0);
+		mimetype = list.items[0].string;
+		for (i = 1; i < list.nr; i++) {
+			if (!strcasecmp(ext, list.items[i].string)) {
 				fclose(file);
 				return xstrdup(mimetype);
 			}
 		}
+		string_list_clear(&list, 0);
 	}
 	fclose(file);
 	return NULL;
diff --git a/ui-atom.c b/ui-atom.c
index 1056f36..636cb7e 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -67,17 +67,12 @@ static void add_entry(struct commit *commit, const char *host)
 		html("'/>\n");
 		free(pageurl);
 	}
-	htmlf("<id>%s</id>\n", hex);
+	html("<id>");
+	html_txtf("urn:%s:%s", the_hash_algo->name, hex);
+	html("</id>\n");
 	html("<content type='text'>\n");
 	html_txt(info->msg);
 	html("</content>\n");
-	html("<content type='xhtml'>\n");
-	html("<div xmlns='http://www.w3.org/1999/xhtml'>\n");
-	html("<pre>\n");
-	html_txt(info->msg);
-	html("</pre>\n");
-	html("</div>\n");
-	html("</content>\n");
 	html("</entry>\n");
 	cgit_free_commitinfo(info);
 }
@@ -90,6 +85,7 @@ void cgit_print_atom(char *tip, const char *path, int max_count)
 	struct commit *commit;
 	struct rev_info rev;
 	int argc = 2;
+	bool first = true;
 
 	if (ctx.qry.show_all)
 		argv[1] = "--all";
@@ -101,7 +97,7 @@ void cgit_print_atom(char *tip, const char *path, int max_count)
 		argv[argc++] = path;
 	}
 
-	init_revisions(&rev, NULL);
+	repo_init_revisions(the_repository, &rev, NULL);
 	rev.abbrev = DEFAULT_ABBREV;
 	rev.commit_format = CMIT_FMT_DEFAULT;
 	rev.verbose_header = 1;
@@ -130,18 +126,30 @@ void cgit_print_atom(char *tip, const char *path, int max_count)
 	html_txt(ctx.repo->desc);
 	html("</subtitle>\n");
 	if (host) {
+		char *fullurl = cgit_currentfullurl();
 		char *repourl = cgit_repourl(ctx.repo->url);
+		html("<id>");
+		html_txtf("%s%s%s", cgit_httpscheme(), host, fullurl);
+		html("</id>\n");
+		html("<link rel='self' href='");
+		html_attrf("%s%s%s", cgit_httpscheme(), host, fullurl);
+		html("'/>\n");
 		html("<link rel='alternate' type='text/html' href='");
-		html(cgit_httpscheme());
-		html_attr(host);
-		html_attr(repourl);
+		html_attrf("%s%s%s", cgit_httpscheme(), host, repourl);
 		html("'/>\n");
+		free(fullurl);
 		free(repourl);
 	}
 	while ((commit = get_revision(&rev)) != NULL) {
+		if (first) {
+			html("<updated>");
+			html_txt(show_date(commit->date, 0,
+				date_mode_from_type(DATE_ISO8601_STRICT)));
+			html("</updated>\n");
+			first = false;
+		}
 		add_entry(commit, host);
-		free_commit_buffer(the_repository->parsed_objects, commit);
-		free_commit_list(commit->parents);
+		release_commit_memory(the_repository->parsed_objects, commit);
 		commit->parents = NULL;
 	}
 	html("</feed>\n");
diff --git a/ui-blame.c b/ui-blame.c
index ec1d888..e0f0593 100644
--- a/ui-blame.c
+++ b/ui-blame.c
@@ -49,11 +49,20 @@ static void emit_blame_entry_hash(struct blame_entry *ent)
 
 	char *detail = emit_suspect_detail(suspect);
 	html("<span class='oid'>");
-	cgit_commit_link(find_unique_abbrev(oid, DEFAULT_ABBREV), detail,
+	cgit_commit_link(repo_find_unique_abbrev(the_repository, oid, DEFAULT_ABBREV), detail,
 			 NULL, ctx.qry.head, oid_to_hex(oid), suspect->path);
 	html("</span>");
 	free(detail);
 
+	if (!repo_parse_commit(the_repository, suspect->commit) && suspect->commit->parents) {
+		struct commit *parent = suspect->commit->parents->item;
+
+		html(" ");
+		cgit_blame_link("^", "Blame the previous revision", NULL,
+				ctx.qry.head, oid_to_hex(&parent->object.oid),
+				suspect->path);
+	}
+
 	while (line++ < ent->num_lines)
 		html("\n");
 }
@@ -117,7 +126,7 @@ static void print_object(const struct object_id *oid, const char *path,
 		return;
 	}
 
-	buf = read_object_file(oid, &type, &size);
+	buf = repo_read_object_file(the_repository, oid, &type, &size);
 	if (!buf) {
 		cgit_print_error_page(500, "Internal server error",
 			"Error reading object %s", oid_to_hex(oid));
@@ -126,7 +135,7 @@ static void print_object(const struct object_id *oid, const char *path,
 
 	strvec_push(&rev_argv, "blame");
 	strvec_push(&rev_argv, rev);
-	init_revisions(&revs, NULL);
+	repo_init_revisions(the_repository, &revs, NULL);
 	revs.diffopt.flags.allow_textconv = 1;
 	setup_revisions(rev_argv.nr, rev_argv.v, &revs, NULL);
 	init_scoreboard(&sb);
@@ -152,6 +161,10 @@ static void print_object(const struct object_id *oid, const char *path,
 	cgit_tree_link("tree", NULL, NULL, ctx.qry.head, rev, path);
 	html(")\n");
 
+	if (buffer_is_binary(buf, size)) {
+		html("<div class='error'>blob is binary.</div>");
+		goto cleanup;
+	}
 	if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) {
 		htmlf("<div class='error'>blob size (%ldKB)"
 		      " exceeds display size limit (%dKB).</div>",
@@ -221,8 +234,7 @@ cleanup:
 }
 
 static int walk_tree(const struct object_id *oid, struct strbuf *base,
-		     const char *pathname, unsigned mode, int stage,
-		     void *cbdata)
+		     const char *pathname, unsigned mode, void *cbdata)
 {
 	struct walk_tree_context *walk_tree_ctx = cbdata;
 
@@ -275,13 +287,13 @@ void cgit_print_blame(void)
 	if (!rev)
 		rev = ctx.qry.head;
 
-	if (get_oid(rev, &oid)) {
+	if (repo_get_oid(the_repository, rev, &oid)) {
 		cgit_print_error_page(404, "Not found",
 			"Invalid revision name: %s", rev);
 		return;
 	}
 	commit = lookup_commit_reference(the_repository, &oid);
-	if (!commit || parse_commit(commit)) {
+	if (!commit || repo_parse_commit(the_repository, commit)) {
 		cgit_print_error_page(404, "Not found",
 			"Invalid commit reference: %s", rev);
 		return;
@@ -291,10 +303,8 @@ void cgit_print_blame(void)
 	walk_tree_ctx.match_baselen = (path_items.match) ?
 				       basedir_len(path_items.match) : -1;
 
-	read_tree_recursive(the_repository,
-			    repo_get_commit_tree(the_repository, commit),
-			    "", 0, 0,
-			    &paths, walk_tree, &walk_tree_ctx);
+	read_tree(the_repository, repo_get_commit_tree(the_repository, commit),
+		  &paths, walk_tree, &walk_tree_ctx);
 	if (!walk_tree_ctx.state)
 		cgit_print_error_page(404, "Not found", "Not found");
 	else if (walk_tree_ctx.state == 2)
diff --git a/ui-blob.c b/ui-blob.c
index f76c641..08f94ee 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -19,7 +19,7 @@ struct walk_tree_context {
 };
 
 static int walk_tree(const struct object_id *oid, struct strbuf *base,
-		const char *pathname, unsigned mode, int stage, void *cbdata)
+		const char *pathname, unsigned mode, void *cbdata)
 {
 	struct walk_tree_context *walk_tree_ctx = cbdata;
 
@@ -52,13 +52,13 @@ int cgit_ref_path_exists(const char *path, const char *ref, int file_only)
 		.file_only = file_only
 	};
 
-	if (get_oid(ref, &oid))
+	if (repo_get_oid(the_repository, ref, &oid))
 		goto done;
 	if (oid_object_info(the_repository, &oid, &size) != OBJ_COMMIT)
 		goto done;
-	read_tree_recursive(the_repository,
-			    repo_get_commit_tree(the_repository, lookup_commit_reference(the_repository, &oid)),
-			    "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+	read_tree(the_repository,
+		  repo_get_commit_tree(the_repository, lookup_commit_reference(the_repository, &oid)),
+		  &paths, walk_tree, &walk_tree_ctx);
 
 done:
 	free(path_items.match);
@@ -87,22 +87,20 @@ int cgit_print_file(char *path, const char *head, int file_only)
 		.file_only = file_only
 	};
 
-	if (get_oid(head, &oid))
+	if (repo_get_oid(the_repository, head, &oid))
 		return -1;
 	type = oid_object_info(the_repository, &oid, &size);
 	if (type == OBJ_COMMIT) {
 		commit = lookup_commit_reference(the_repository, &oid);
-		read_tree_recursive(the_repository,
-				    repo_get_commit_tree(the_repository, commit),
-				    "", 0, 0, &paths, walk_tree,
-				    &walk_tree_ctx);
+		read_tree(the_repository, repo_get_commit_tree(the_repository, commit),
+			  &paths, walk_tree, &walk_tree_ctx);
 		if (!walk_tree_ctx.found_path)
 			return -1;
 		type = oid_object_info(the_repository, &oid, &size);
 	}
 	if (type == OBJ_BAD)
 		return -1;
-	buf = read_object_file(&oid, &type, &size);
+	buf = repo_read_object_file(the_repository, &oid, &type, &size);
 	if (!buf)
 		return -1;
 	buf[size] = '\0';
@@ -140,7 +138,7 @@ void cgit_print_blob(const char *hex, char *path, const char *head, int file_onl
 			return;
 		}
 	} else {
-		if (get_oid(head, &oid)) {
+		if (repo_get_oid(the_repository, head, &oid)) {
 			cgit_print_error_page(404, "Not found",
 					"Bad ref: %s", head);
 			return;
@@ -151,10 +149,8 @@ void cgit_print_blob(const char *hex, char *path, const char *head, int file_onl
 
 	if ((!hex) && type == OBJ_COMMIT && path) {
 		commit = lookup_commit_reference(the_repository, &oid);
-		read_tree_recursive(the_repository,
-				    repo_get_commit_tree(the_repository, commit),
-				    "", 0, 0, &paths, walk_tree,
-				    &walk_tree_ctx);
+		read_tree(the_repository, repo_get_commit_tree(the_repository, commit),
+			  &paths, walk_tree, &walk_tree_ctx);
 		type = oid_object_info(the_repository, &oid, &size);
 	}
 
@@ -164,7 +160,7 @@ void cgit_print_blob(const char *hex, char *path, const char *head, int file_onl
 		return;
 	}
 
-	buf = read_object_file(&oid, &type, &size);
+	buf = repo_read_object_file(the_repository, &oid, &type, &size);
 	if (!buf) {
 		cgit_print_error_page(500, "Internal server error",
 				"Error reading object %s", hex);
diff --git a/ui-commit.c b/ui-commit.c
index 948118c..30672d0 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -26,7 +26,7 @@ void cgit_print_commit(char *hex, const char *prefix)
 	if (!hex)
 		hex = ctx.qry.head;
 
-	if (get_oid(hex, &oid)) {
+	if (repo_get_oid(the_repository, hex, &oid)) {
 		cgit_print_error_page(400, "Bad request",
 				"Bad object id: %s", hex);
 		return;
@@ -39,10 +39,11 @@ void cgit_print_commit(char *hex, const char *prefix)
 	}
 	info = cgit_parse_commit(commit);
 
-	format_display_notes(&oid, &notes, PAGE_ENCODING, 0);
+	format_display_notes(&oid, &notes, PAGE_ENCODING, 1);
 
 	load_ref_decorations(NULL, DECORATE_FULL_REFS);
 
+	ctx.page.title = fmtalloc("%s - %s", info->subject, ctx.page.title);
 	cgit_print_layout_start();
 	cgit_print_diff_ctrls();
 	html("<table summary='commit info' class='commit-info'>\n");
diff --git a/ui-diff.c b/ui-diff.c
index 5ed5990..6f42dd4 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -258,8 +258,8 @@ static void header(const struct object_id *oid1, char *path1, int mode1,
 		htmlf("<br/>deleted file mode %.6o", mode1);
 
 	if (!subproject) {
-		abbrev1 = xstrdup(find_unique_abbrev(oid1, DEFAULT_ABBREV));
-		abbrev2 = xstrdup(find_unique_abbrev(oid2, DEFAULT_ABBREV));
+		abbrev1 = xstrdup(repo_find_unique_abbrev(the_repository, oid1, DEFAULT_ABBREV));
+		abbrev2 = xstrdup(repo_find_unique_abbrev(the_repository, oid2, DEFAULT_ABBREV));
 		htmlf("<br/>index %s..%s", abbrev1, abbrev2);
 		free(abbrev1);
 		free(abbrev2);
@@ -402,13 +402,13 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
 
 	if (!new_rev)
 		new_rev = ctx.qry.head;
-	if (get_oid(new_rev, new_rev_oid)) {
+	if (repo_get_oid(the_repository, new_rev, new_rev_oid)) {
 		cgit_print_error_page(404, "Not found",
 			"Bad object name: %s", new_rev);
 		return;
 	}
 	commit = lookup_commit_reference(the_repository, new_rev_oid);
-	if (!commit || parse_commit(commit)) {
+	if (!commit || repo_parse_commit(the_repository, commit)) {
 		cgit_print_error_page(404, "Not found",
 			"Bad commit: %s", oid_to_hex(new_rev_oid));
 		return;
@@ -416,7 +416,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
 	new_tree_oid = get_commit_tree_oid(commit);
 
 	if (old_rev) {
-		if (get_oid(old_rev, old_rev_oid)) {
+		if (repo_get_oid(the_repository, old_rev, old_rev_oid)) {
 			cgit_print_error_page(404, "Not found",
 				"Bad object name: %s", old_rev);
 			return;
@@ -429,7 +429,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
 
 	if (!is_null_oid(old_rev_oid)) {
 		commit2 = lookup_commit_reference(the_repository, old_rev_oid);
-		if (!commit2 || parse_commit(commit2)) {
+		if (!commit2 || repo_parse_commit(the_repository, commit2)) {
 			cgit_print_error_page(404, "Not found",
 				"Bad commit: %s", oid_to_hex(old_rev_oid));
 			return;
@@ -442,7 +442,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
 	if (raw) {
 		struct diff_options diffopt;
 
-		diff_setup(&diffopt);
+		repo_diff_setup(the_repository, &diffopt);
 		diffopt.output_format = DIFF_FORMAT_PATCH;
 		diffopt.flags.recursive = 1;
 		diff_setup_done(&diffopt);
diff --git a/ui-log.c b/ui-log.c
index 6914f75..50d479d 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -65,8 +65,9 @@ void show_commit_decorations(struct commit *commit)
 		return;
 	html("<span class='decoration'>");
 	while (deco) {
-		struct object_id peeled;
+		struct object_id oid_tag, peeled;
 		int is_annotated = 0;
+
 		strlcpy(buf, prettify_refname(deco->name), sizeof(buf));
 		switch(deco->type) {
 		case DECORATION_NONE:
@@ -79,8 +80,8 @@ void show_commit_decorations(struct commit *commit)
 				ctx.qry.showmsg, 0);
 			break;
 		case DECORATION_REF_TAG:
-			if (!peel_ref(deco->name, &peeled))
-				is_annotated = !oidcmp(&commit->object.oid, &peeled);
+			if (!read_ref(deco->name, &oid_tag) && !peel_iterated_oid(&oid_tag, &peeled))
+				is_annotated = !oideq(&oid_tag, &peeled);
 			cgit_tag_link(buf, NULL, is_annotated ? "tag-annotated-deco" : "tag-deco", buf);
 			break;
 		case DECORATION_REF_REMOTE:
@@ -145,7 +146,7 @@ static int show_commit(struct commit *commit, struct rev_info *revs)
 	/* When we get here we have precisely one parent. */
 	parent = parents->item;
 	/* If we can't parse the commit, let print_commit() report an error. */
-	if (parse_commit(parent))
+	if (repo_parse_commit(the_repository, parent))
 		return 1;
 
 	files = 0;
@@ -158,7 +159,7 @@ static int show_commit(struct commit *commit, struct rev_info *revs)
 		      "", &revs->diffopt);
 	diffcore_std(&revs->diffopt);
 
-	found = !diff_queue_is_empty();
+	found = !diff_queue_is_empty(&revs->diffopt);
 	saved_fmt = revs->diffopt.output_format;
 	revs->diffopt.output_format = DIFF_FORMAT_CALLBACK;
 	revs->diffopt.format_callback = cgit_diff_tree_cb;
@@ -329,7 +330,7 @@ static const char *disambiguate_ref(const char *ref, int *must_free_result)
 	struct strbuf longref = STRBUF_INIT;
 
 	strbuf_addf(&longref, "refs/heads/%s", ref);
-	if (get_oid(longref.buf, &oid) == 0) {
+	if (repo_get_oid(the_repository, longref.buf, &oid) == 0) {
 		*must_free_result = 1;
 		return strbuf_detach(&longref, NULL);
 	}
@@ -429,7 +430,7 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 	if (path)
 		strvec_push(&rev_argv, path);
 
-	init_revisions(&rev, NULL);
+	repo_init_revisions(the_repository, &rev, NULL);
 	rev.abbrev = DEFAULT_ABBREV;
 	rev.commit_format = CMIT_FMT_DEFAULT;
 	rev.verbose_header = 1;
@@ -488,8 +489,7 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 	for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; /* nop */) {
 		if (show_commit(commit, &rev))
 			i++;
-		free_commit_buffer(the_repository->parsed_objects, commit);
-		free_commit_list(commit->parents);
+		release_commit_memory(the_repository->parsed_objects, commit);
 		commit->parents = NULL;
 	}
 
@@ -510,8 +510,7 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 			i++;
 			print_commit(commit, &rev);
 		}
-		free_commit_buffer(the_repository->parsed_objects, commit);
-		free_commit_list(commit->parents);
+		release_commit_memory(the_repository->parsed_objects, commit);
 		commit->parents = NULL;
 	}
 	if (pager) {
diff --git a/ui-patch.c b/ui-patch.c
index 4ac03cb..3819a81 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -31,7 +31,7 @@ void cgit_print_patch(const char *new_rev, const char *old_rev,
 	if (!new_rev)
 		new_rev = ctx.qry.head;
 
-	if (get_oid(new_rev, &new_rev_oid)) {
+	if (repo_get_oid(the_repository, new_rev, &new_rev_oid)) {
 		cgit_print_error_page(404, "Not found",
 				"Bad object id: %s", new_rev);
 		return;
@@ -44,7 +44,7 @@ void cgit_print_patch(const char *new_rev, const char *old_rev,
 	}
 
 	if (old_rev) {
-		if (get_oid(old_rev, &old_rev_oid)) {
+		if (repo_get_oid(the_repository, old_rev, &old_rev_oid)) {
 			cgit_print_error_page(404, "Not found",
 					"Bad object id: %s", old_rev);
 			return;
@@ -78,7 +78,7 @@ void cgit_print_patch(const char *new_rev, const char *old_rev,
 			      "%s%n%n%w(0)%b";
 	}
 
-	init_revisions(&rev, NULL);
+	repo_init_revisions(the_repository, &rev, NULL);
 	rev.abbrev = DEFAULT_ABBREV;
 	rev.verbose_header = 1;
 	rev.diff = 1;
diff --git a/ui-plain.c b/ui-plain.c
index 001001c..a66c5a1 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -28,7 +28,7 @@ static int print_object(const struct object_id *oid, const char *path)
 		return 0;
 	}
 
-	buf = read_object_file(oid, &type, &size);
+	buf = repo_read_object_file(the_repository, oid, &type, &size);
 	if (!buf) {
 		cgit_print_error_page(404, "Not found", "Not found");
 		return 0;
@@ -130,7 +130,7 @@ static void print_dir_tail(void)
 }
 
 static int walk_tree(const struct object_id *oid, struct strbuf *base,
-		const char *pathname, unsigned mode, int stage, void *cbdata)
+		const char *pathname, unsigned mode, void *cbdata)
 {
 	struct walk_tree_context *walk_tree_ctx = cbdata;
 
@@ -181,12 +181,12 @@ void cgit_print_plain(void)
 	if (!rev)
 		rev = ctx.qry.head;
 
-	if (get_oid(rev, &oid)) {
+	if (repo_get_oid(the_repository, rev, &oid)) {
 		cgit_print_error_page(404, "Not found", "Not found");
 		return;
 	}
 	commit = lookup_commit_reference(the_repository, &oid);
-	if (!commit || parse_commit(commit)) {
+	if (!commit || repo_parse_commit(the_repository, commit)) {
 		cgit_print_error_page(404, "Not found", "Not found");
 		return;
 	}
@@ -198,9 +198,8 @@ void cgit_print_plain(void)
 	}
 	else
 		walk_tree_ctx.match_baselen = basedir_len(path_items.match);
-	read_tree_recursive(the_repository,
-		            repo_get_commit_tree(the_repository, commit),
-		            "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+	read_tree(the_repository, repo_get_commit_tree(the_repository, commit),
+		  &paths, walk_tree, &walk_tree_ctx);
 	if (!walk_tree_ctx.match)
 		cgit_print_error_page(404, "Not found", "Not found");
 	else if (walk_tree_ctx.match == 2)
diff --git a/ui-repolist.c b/ui-repolist.c
index 529a203..d12e3dd 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -321,7 +321,7 @@ void cgit_print_repolist(void)
 		}
 		htmlf("<tr><td class='%s'>",
 		      !sorted && section ? "sublevel-repo" : "toplevel-repo");
-		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+		cgit_summary_link(ctx.repo->name, NULL, NULL, NULL);
 		html("</td><td>");
 		repourl = cgit_repourl(ctx.repo->url);
 		html_link_open(repourl, NULL, NULL);
diff --git a/ui-shared.c b/ui-shared.c
index acd8ab5..d5b5b20 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -662,18 +662,18 @@ void cgit_submodule_link(const char *class, char *path, const char *rev)
 		path[len - 1] = tail;
 }
 
-const struct date_mode *cgit_date_mode(enum date_mode_type type)
+const struct date_mode cgit_date_mode(enum date_mode_type type)
 {
 	static struct date_mode mode;
 	mode.type = type;
 	mode.local = ctx.cfg.local_time;
-	return &mode;
+	return mode;
 }
 
 static void print_rel_date(time_t t, int tz, double value,
 	const char *class, const char *suffix)
 {
-	htmlf("<span class='%s' title='", class);
+	htmlf("<span class='%s' data-ut='%" PRIu64 "' title='", class, (uint64_t)t);
 	html_attr(show_date(t, tz, cgit_date_mode(DATE_ISO8601)));
 	htmlf("'>%.0f %s</span>", value, suffix);
 }
@@ -768,6 +768,38 @@ static void print_rel_vcs_link(const char *url)
 	html(" Git repository'/>\n");
 }
 
+static int emit_css_link(struct string_list_item *s, void *arg)
+{
+	/* Do not emit anything if css= is specified. */
+	if (s && *s->string == '\0')
+		return 0;
+
+	html("<link rel='stylesheet' type='text/css' href='");
+	if (s)
+		html_attr(s->string);
+	else
+		html_attr((const char *)arg);
+	html("'/>\n");
+
+	return 0;
+}
+
+static int emit_js_link(struct string_list_item *s, void *arg)
+{
+	/* Do not emit anything if js= is specified. */
+	if (s && *s->string == '\0')
+		return 0;
+
+	html("<script type='text/javascript' src='");
+	if (s)
+		html_attr(s->string);
+	else
+		html_attr((const char *)arg);
+	html("'></script>\n");
+
+	return 0;
+}
+
 void cgit_print_docstart(void)
 {
 	char *host = cgit_hosturl();
@@ -787,9 +819,17 @@ void cgit_print_docstart(void)
 	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);
-	html("<link rel='stylesheet' type='text/css' href='");
-	html_attr(ctx.cfg.css);
-	html("'/>\n");
+
+	if (ctx.cfg.css.items)
+		for_each_string_list(&ctx.cfg.css, emit_css_link, NULL);
+	else
+		emit_css_link(NULL, "/cgit.css");
+
+	if (ctx.cfg.js.items)
+		for_each_string_list(&ctx.cfg.js, emit_js_link, NULL);
+	else
+		emit_js_link(NULL, "/cgit.js");
+
 	if (ctx.cfg.favicon) {
 		html("<link rel='shortcut icon' href='");
 		html_attr(ctx.cfg.favicon);
@@ -995,7 +1035,7 @@ static void print_header(void)
 	if (ctx.repo) {
 		cgit_index_link("index", NULL, NULL, NULL, NULL, 0, 1);
 		html(" : ");
-		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+		cgit_summary_link(ctx.repo->name, NULL, NULL, NULL);
 		if (ctx.env.authenticated) {
 			html("</td><td class='form'>");
 			html("<form method='get'>\n");
@@ -1016,7 +1056,13 @@ static void print_header(void)
 	if (ctx.repo) {
 		html_txt(ctx.repo->desc);
 		html("</td><td class='sub right'>");
-		html_txt(ctx.repo->owner);
+		if (ctx.repo->owner_filter) {
+			cgit_open_filter(ctx.repo->owner_filter);
+			html_txt(ctx.repo->owner);
+			cgit_close_filter(ctx.repo->owner_filter);
+		} else {
+			html_txt(ctx.repo->owner);
+		}
 	} else {
 		if (ctx.cfg.root_desc)
 			html_txt(ctx.cfg.root_desc);
@@ -1142,11 +1188,11 @@ void cgit_compose_snapshot_prefix(struct strbuf *filename, const char *base,
 	 * name starts with {v,V}[0-9] and the prettify mapping is injective,
 	 * i.e. each stripped tag can be inverted without ambiguities.
 	 */
-	if (get_oid(fmt("refs/tags/%s", ref), &oid) == 0 &&
+	if (repo_get_oid(the_repository, fmt("refs/tags/%s", ref), &oid) == 0 &&
 	    (ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]) &&
-	    ((get_oid(fmt("refs/tags/%s", ref + 1), &oid) == 0) +
-	     (get_oid(fmt("refs/tags/v%s", ref + 1), &oid) == 0) +
-	     (get_oid(fmt("refs/tags/V%s", ref + 1), &oid) == 0) == 1))
+	    ((repo_get_oid(the_repository, fmt("refs/tags/%s", ref + 1), &oid) == 0) +
+	     (repo_get_oid(the_repository, fmt("refs/tags/v%s", ref + 1), &oid) == 0) +
+	     (repo_get_oid(the_repository, fmt("refs/tags/V%s", ref + 1), &oid) == 0) == 1))
 		ref++;
 
 	strbuf_addf(filename, "%s-%s", base, ref);
diff --git a/ui-shared.h b/ui-shared.h
index 6964873..f12fa99 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -65,7 +65,7 @@ __attribute__((format (printf,1,2)))
 extern void cgit_print_error(const char *fmt, ...);
 __attribute__((format (printf,1,0)))
 extern void cgit_vprint_error(const char *fmt, va_list ap);
-extern const struct date_mode *cgit_date_mode(enum date_mode_type type);
+extern const struct date_mode cgit_date_mode(enum date_mode_type type);
 extern void cgit_print_age(time_t t, int tz, time_t max_relative);
 extern void cgit_print_http_headers(void);
 extern void cgit_redirect(const char *url, bool permanent);
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 18361a6..9f629a9 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -117,7 +117,7 @@ const struct object_id *cgit_snapshot_get_sig(const char *ref,
 	struct notes_tree *tree;
 	struct object_id oid;
 
-	if (get_oid(ref, &oid))
+	if (repo_get_oid(the_repository, ref, &oid))
 		return NULL;
 
 	tree = &snapshot_sig_notes[f - &cgit_snapshot_formats[0]];
@@ -156,7 +156,7 @@ static int make_snapshot(const struct cgit_snapshot_format *format,
 {
 	struct object_id oid;
 
-	if (get_oid(hex, &oid)) {
+	if (repo_get_oid(the_repository, hex, &oid)) {
 		cgit_print_error_page(404, "Not found",
 				"Bad object id: %s", hex);
 		return 1;
@@ -190,7 +190,7 @@ static int write_sig(const struct cgit_snapshot_format *format,
 		return 0;
 	}
 
-	buf = read_object_file(note, &type, &size);
+	buf = repo_read_object_file(the_repository, note, &type, &size);
 	if (!buf) {
 		cgit_print_error_page(404, "Not found", "Not found");
 		return 0;
@@ -230,7 +230,7 @@ static const char *get_ref_from_filename(const struct cgit_repo *repo,
 	strbuf_addstr(&snapshot, filename);
 	strbuf_setlen(&snapshot, snapshot.len - strlen(format->suffix));
 
-	if (get_oid(snapshot.buf, &oid) == 0)
+	if (repo_get_oid(the_repository, snapshot.buf, &oid) == 0)
 		goto out;
 
 	reponame = cgit_snapshot_prefix(repo);
@@ -242,15 +242,15 @@ static const char *get_ref_from_filename(const struct cgit_repo *repo,
 		strbuf_splice(&snapshot, 0, new_start - snapshot.buf, "", 0);
 	}
 
-	if (get_oid(snapshot.buf, &oid) == 0)
+	if (repo_get_oid(the_repository, snapshot.buf, &oid) == 0)
 		goto out;
 
 	strbuf_insert(&snapshot, 0, "v", 1);
-	if (get_oid(snapshot.buf, &oid) == 0)
+	if (repo_get_oid(the_repository, snapshot.buf, &oid) == 0)
 		goto out;
 
 	strbuf_splice(&snapshot, 0, 1, "V", 1);
-	if (get_oid(snapshot.buf, &oid) == 0)
+	if (repo_get_oid(the_repository, snapshot.buf, &oid) == 0)
 		goto out;
 
 	result = 0;
diff --git a/ui-stats.c b/ui-stats.c
index 09b3625..9aed4ac 100644
--- a/ui-stats.c
+++ b/ui-stats.c
@@ -230,7 +230,7 @@ static struct string_list collect_stats(const struct cgit_period *period)
 		argv[4] = ctx.qry.path;
 		argc += 2;
 	}
-	init_revisions(&rev, NULL);
+	repo_init_revisions(the_repository, &rev, NULL);
 	rev.abbrev = DEFAULT_ABBREV;
 	rev.commit_format = CMIT_FMT_DEFAULT;
 	rev.max_parents = 1;
@@ -241,8 +241,7 @@ static struct string_list collect_stats(const struct cgit_period *period)
 	memset(&authors, 0, sizeof(authors));
 	while ((commit = get_revision(&rev)) != NULL) {
 		add_commit(&authors, commit, period);
-		free_commit_buffer(the_repository->parsed_objects, commit);
-		free_commit_list(commit->parents);
+		release_commit_memory(the_repository->parsed_objects, commit);
 		commit->parents = NULL;
 	}
 	return authors;
diff --git a/ui-tag.c b/ui-tag.c
index 424bbcc..5354827 100644
--- a/ui-tag.c
+++ b/ui-tag.c
@@ -48,7 +48,7 @@ void cgit_print_tag(char *revname)
 		revname = ctx.qry.head;
 
 	strbuf_addf(&fullref, "refs/tags/%s", revname);
-	if (get_oid(fullref.buf, &oid)) {
+	if (repo_get_oid(the_repository, fullref.buf, &oid)) {
 		cgit_print_error_page(404, "Not found",
 			"Bad tag reference: %s", revname);
 		goto cleanup;
diff --git a/ui-tree.c b/ui-tree.c
index 1e4efb2..0640336 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -89,6 +89,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch
 	enum object_type type;
 	char *buf;
 	unsigned long size;
+	bool is_binary;
 
 	type = oid_object_info(the_repository, oid, &size);
 	if (type == OBJ_BAD) {
@@ -97,12 +98,13 @@ static void print_object(const struct object_id *oid, const char *path, const ch
 		return;
 	}
 
-	buf = read_object_file(oid, &type, &size);
+	buf = repo_read_object_file(the_repository, oid, &type, &size);
 	if (!buf) {
 		cgit_print_error_page(500, "Internal server error",
 			"Error reading object %s", oid_to_hex(oid));
 		return;
 	}
+	is_binary = buffer_is_binary(buf, size);
 
 	cgit_set_title_from_path(path);
 
@@ -110,7 +112,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch
 	htmlf("blob: %s (", oid_to_hex(oid));
 	cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 		        rev, path);
-	if (ctx.repo->enable_blame) {
+	if (ctx.repo->enable_blame && !is_binary) {
 		html(") (");
 		cgit_blame_link("blame", NULL, NULL, ctx.qry.head,
 			        rev, path);
@@ -123,7 +125,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch
 		return;
 	}
 
-	if (buffer_is_binary(buf, size))
+	if (is_binary)
 		print_binary_buffer(buf, size);
 	else
 		print_text_buffer(basename, buf, size);
@@ -139,8 +141,7 @@ struct single_tree_ctx {
 };
 
 static int single_tree_cb(const struct object_id *oid, struct strbuf *base,
-			  const char *pathname, unsigned mode, int stage,
-			  void *cbdata)
+			  const char *pathname, unsigned mode, void *cbdata)
 {
 	struct single_tree_ctx *ctx = cbdata;
 
@@ -185,8 +186,7 @@ static void write_tree_link(const struct object_id *oid, char *name,
 		tree_ctx.name = NULL;
 		tree_ctx.count = 0;
 
-		read_tree_recursive(the_repository, tree, "", 0, 1,
-			&paths, single_tree_cb, &tree_ctx);
+		read_tree(the_repository, tree, &paths, single_tree_cb, &tree_ctx);
 
 		if (tree_ctx.count != 1)
 			break;
@@ -199,14 +199,16 @@ static void write_tree_link(const struct object_id *oid, char *name,
 }
 
 static int ls_item(const struct object_id *oid, struct strbuf *base,
-		const char *pathname, unsigned mode, int stage, void *cbdata)
+		const char *pathname, unsigned mode, void *cbdata)
 {
 	struct walk_tree_context *walk_tree_ctx = cbdata;
 	char *name;
 	struct strbuf fullpath = STRBUF_INIT;
+	struct strbuf linkpath = STRBUF_INIT;
 	struct strbuf class = STRBUF_INIT;
 	enum object_type type;
 	unsigned long size = 0;
+	char *buf;
 
 	name = xstrdup(pathname);
 	strbuf_addf(&fullpath, "%s%s%s", ctx.qry.path ? ctx.qry.path : "",
@@ -218,8 +220,7 @@ static int ls_item(const struct object_id *oid, struct strbuf *base,
 			htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 			      name,
 			      oid_to_hex(oid));
-			free(name);
-			return 0;
+			goto cleanup;
 		}
 	}
 
@@ -239,6 +240,21 @@ static int ls_item(const struct object_id *oid, struct strbuf *base,
 		cgit_tree_link(name, NULL, class.buf, ctx.qry.head,
 			       walk_tree_ctx->curr_rev, fullpath.buf);
 	}
+	if (S_ISLNK(mode)) {
+		html(" -> ");
+		buf = repo_read_object_file(the_repository, oid, &type, &size);
+		if (!buf) {
+			htmlf("Error reading object: %s", oid_to_hex(oid));
+			goto cleanup;
+		}
+		strbuf_addbuf(&linkpath, &fullpath);
+		strbuf_addf(&linkpath, "/../%s", buf);
+		strbuf_normalize_path(&linkpath);
+		cgit_tree_link(buf, NULL, class.buf, ctx.qry.head,
+			walk_tree_ctx->curr_rev, linkpath.buf);
+		free(buf);
+		strbuf_release(&linkpath);
+	}
 	htmlf("</td><td class='ls-size'>%li</td>", size);
 
 	html("<td>");
@@ -255,6 +271,8 @@ static int ls_item(const struct object_id *oid, struct strbuf *base,
 		cgit_blame_link("blame", NULL, "button", ctx.qry.head,
 				walk_tree_ctx->curr_rev, fullpath.buf);
 	html("</td></tr>\n");
+
+cleanup:
 	free(name);
 	strbuf_release(&fullpath);
 	strbuf_release(&class);
@@ -294,14 +312,13 @@ static void ls_tree(const struct object_id *oid, const char *path, struct walk_t
 	}
 
 	ls_head();
-	read_tree_recursive(the_repository, tree, "", 0, 1,
-		&paths, ls_item, walk_tree_ctx);
+	read_tree(the_repository, tree, &paths, ls_item, walk_tree_ctx);
 	ls_tail();
 }
 
 
 static int walk_tree(const struct object_id *oid, struct strbuf *base,
-		const char *pathname, unsigned mode, int stage, void *cbdata)
+		const char *pathname, unsigned mode, void *cbdata)
 {
 	struct walk_tree_context *walk_tree_ctx = cbdata;
 
@@ -326,7 +343,7 @@ static int walk_tree(const struct object_id *oid, struct strbuf *base,
 			return 0;
 		}
 	}
-	ls_item(oid, base, pathname, mode, stage, walk_tree_ctx);
+	ls_item(oid, base, pathname, mode, walk_tree_ctx);
 	return 0;
 }
 
@@ -355,13 +372,13 @@ void cgit_print_tree(const char *rev, char *path)
 	if (!rev)
 		rev = ctx.qry.head;
 
-	if (get_oid(rev, &oid)) {
+	if (repo_get_oid(the_repository, rev, &oid)) {
 		cgit_print_error_page(404, "Not found",
 			"Invalid revision name: %s", rev);
 		return;
 	}
 	commit = lookup_commit_reference(the_repository, &oid);
-	if (!commit || parse_commit(commit)) {
+	if (!commit || repo_parse_commit(the_repository, commit)) {
 		cgit_print_error_page(404, "Not found",
 			"Invalid commit reference: %s", rev);
 		return;
@@ -374,10 +391,8 @@ void cgit_print_tree(const char *rev, char *path)
 		goto cleanup;
 	}
 
-	read_tree_recursive(the_repository,
-			    repo_get_commit_tree(the_repository, commit),
-			    "", 0, 0,
-			    &paths, walk_tree, &walk_tree_ctx);
+	read_tree(the_repository, repo_get_commit_tree(the_repository, commit),
+		  &paths, walk_tree, &walk_tree_ctx);
 	if (walk_tree_ctx.state == 1)
 		ls_tail();
 	else if (walk_tree_ctx.state == 2)