43 files changed, 2117 insertions, 408 deletions

diff --git a/Makefile b/Makefile
index 304521e..14b4df4 100644
--- a/Makefile
+++ b/Makefile
@@ -4,15 +4,35 @@ CGIT_SCRIPT_PATH = /var/www/htdocs/cgit
 CGIT_DATA_PATH = $(CGIT_SCRIPT_PATH)
 CGIT_CONFIG = /etc/cgitrc
 CACHE_ROOT = /var/cache/cgit
+prefix = /usr
+libdir = $(prefix)/lib
+filterdir = $(libdir)/cgit/filters
+docdir = $(prefix)/share/doc/cgit
+htmldir = $(docdir)
+pdfdir = $(docdir)
+mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 1.7.3
+GIT_VER = 1.7.4
 GIT_URL = http://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.bz2
 INSTALL = install
+MAN5_TXT = $(wildcard *.5.txt)
+MAN_TXT  = $(MAN5_TXT)
+DOC_MAN5 = $(patsubst %.txt,%,$(MAN5_TXT))
+DOC_HTML = $(patsubst %.txt,%.html,$(MAN_TXT))
+DOC_PDF  = $(patsubst %.txt,%.pdf,$(MAN_TXT))
 
 # Define NO_STRCASESTR if you don't have strcasestr.
 #
+# Define NO_OPENSSL to disable linking with OpenSSL and use bundled SHA1
+# implementation (slower).
+#
 # Define NEEDS_LIBICONV if linking with libc is not enough (eg. Darwin).
 #
+# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
+# do not support the 'size specifiers' introduced by C99, namely ll, hh,
+# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
+# some C compilers supported these specifiers prior to C99 as an extension.
+#
 
 #-include config.mak
 
@@ -59,7 +79,7 @@ endif
 # Define a pattern rule for automatic dependency building
 #
 %.d: %.c
-        $(QUIET_MM)$(CC) $(CFLAGS) -MM $< | sed -e 's/\($*\)\.o:/\1.o $@:/g' >$@
+        $(QUIET_MM)$(CC) $(CFLAGS) -MM -MP $< | sed -e 's/\($*\)\.o:/\1.o $@:/g' >$@
 
 #
 # Define a pattern rule for silent object building
@@ -68,7 +88,7 @@ endif
         $(QUIET_CC)$(CC) -o $*.o -c $(CFLAGS) $<
 
 
-EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lcrypto -lpthread
+EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lpthread
 OBJECTS =
 OBJECTS += cache.o
 OBJECTS += cgit.o
@@ -90,10 +110,12 @@ OBJECTS += ui-refs.o
 OBJECTS += ui-repolist.o
 OBJECTS += ui-shared.o
 OBJECTS += ui-snapshot.o
+OBJECTS += ui-ssdiff.o
 OBJECTS += ui-stats.o
 OBJECTS += ui-summary.o
 OBJECTS += ui-tag.o
 OBJECTS += ui-tree.o
+OBJECTS += vector.o
 
 ifdef NEEDS_LIBICONV
         EXTLIBS += -liconv
@@ -101,7 +123,8 @@ endif
 
 
 .PHONY: all libgit test install uninstall clean force-version get-git \
-        doc man-doc html-doc clean-doc
+        doc clean-doc install-doc install-man install-html install-pdf \
+        uninstall-doc uninstall-man uninstall-html uninstall-pdf
 
 all: cgit
 
@@ -117,23 +140,36 @@ CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
 CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
 CFLAGS += -DCGIT_CACHE_ROOT='"$(CACHE_ROOT)"'
 
+GIT_OPTIONS = prefix=/usr
+
 ifdef NO_ICONV
         CFLAGS += -DNO_ICONV
 endif
 ifdef NO_STRCASESTR
         CFLAGS += -DNO_STRCASESTR
 endif
+ifdef NO_C99_FORMAT
+        CFLAGS += -DNO_C99_FORMAT
+endif
+ifdef NO_OPENSSL
+        CFLAGS += -DNO_OPENSSL
+        GIT_OPTIONS += NO_OPENSSL=1
+else
+        EXTLIBS += -lcrypto
+endif
 
 cgit: $(OBJECTS) libgit
         $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)
 
 cgit.o: VERSION
 
--include $(OBJECTS:.o=.d)
+ifneq "$(MAKECMDGOALS)" "clean"
+  -include $(OBJECTS:.o=.d)
+endif
 
 libgit:
-        $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 libgit.a
-        $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 xdiff/lib.a
+        $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) libgit.a
+        $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) xdiff/lib.a
 
 test: all
         $(QUIET_SUBDIR0)tests $(QUIET_SUBDIR1) all
@@ -144,21 +180,58 @@ install: all
         $(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_DATA_PATH)
         $(INSTALL) -m 0644 cgit.css $(DESTDIR)$(CGIT_DATA_PATH)/cgit.css
         $(INSTALL) -m 0644 cgit.png $(DESTDIR)$(CGIT_DATA_PATH)/cgit.png
+        $(INSTALL) -m 0755 -d $(DESTDIR)$(filterdir)
+        $(INSTALL) -m 0755 filters/* $(DESTDIR)$(filterdir)
+
+install-doc: install-man install-html install-pdf
+
+install-man: doc-man
+        $(INSTALL) -m 0755 -d $(DESTDIR)$(mandir)/man5
+        $(INSTALL) -m 0644 $(DOC_MAN5) $(DESTDIR)$(mandir)/man5
+
+install-html: doc-html
+        $(INSTALL) -m 0755 -d $(DESTDIR)$(htmldir)
+        $(INSTALL) -m 0644 $(DOC_HTML) $(DESTDIR)$(htmldir)
+
+install-pdf: doc-pdf
+        $(INSTALL) -m 0755 -d $(DESTDIR)$(pdfdir)
+        $(INSTALL) -m 0644 $(DOC_PDF) $(DESTDIR)$(pdfdir)
 
 uninstall:
         rm -f $(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         rm -f $(CGIT_DATA_PATH)/cgit.css
         rm -f $(CGIT_DATA_PATH)/cgit.png
 
-doc: man-doc html-doc pdf-doc
+uninstall-doc: uninstall-man uninstall-html uninstall-pdf
+
+uninstall-man:
+        @for i in $(DOC_MAN5); do \
+            rm -fv $(DESTDIR)$(mandir)/man5/$$i; \
+        done
+
+uninstall-html:
+        @for i in $(DOC_HTML); do \
+            rm -fv $(DESTDIR)$(htmldir)/$$i; \
+        done
+
+uninstall-pdf:
+        @for i in $(DOC_PDF); do \
+            rm -fv $(DESTDIR)$(pdfdir)/$$i; \
+        done
+
+doc: doc-man doc-html doc-pdf
+doc-man: doc-man5
+doc-man5: $(DOC_MAN5)
+doc-html: $(DOC_HTML)
+doc-pdf: $(DOC_PDF)
 
-man-doc: cgitrc.5.txt
-        a2x -f manpage cgitrc.5.txt
+%.5 : %.5.txt
+        a2x -f manpage $<
 
-html-doc: cgitrc.5.txt
-        a2x -f xhtml --stylesheet=cgit-doc.css cgitrc.5.txt
+$(DOC_HTML): %.html : %.txt
+        a2x -f xhtml --stylesheet=cgit-doc.css $<
 
-pdf-doc: cgitrc.5.txt
+$(DOC_PDF): %.pdf : %.txt
         a2x -f pdf cgitrc.5.txt
 
 clean: clean-doc
diff --git a/README b/README
index 73ec332..050e21e 100644
--- a/README
+++ b/README
@@ -49,7 +49,7 @@ like this:
 
   <Directory "/var/www/htdocs/cgit/">
       AllowOverride None
-      Options ExecCGI
+      Options +ExecCGI
       Order allow,deny
       Allow from all
   </Directory>
diff --git a/cache.h b/cache.h
index ac9276b..5cfdb4f 100644
--- a/cache.h
+++ b/cache.h
@@ -30,6 +30,7 @@ extern int cache_process(int size, const char *path, const char *key, int ttl,
 extern int cache_ls(const char *path);
 
 /* Print a message to stdout */
+__attribute__((format (printf,1,2)))
 extern void cache_log(const char *format, ...);
 
 extern unsigned long hash_str(const char *str);
diff --git a/cgit.c b/cgit.c
index af9832f..f4dd6ef 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,6 +1,7 @@
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli
+ * Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com>
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
@@ -56,22 +57,29 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
                 repo->defbranch = xstrdup(value);
         else if (!strcmp(name, "snapshots"))
                 repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
+        else if (!strcmp(name, "enable-commit-graph"))
+                repo->enable_commit_graph = ctx.cfg.enable_commit_graph * atoi(value);
         else if (!strcmp(name, "enable-log-filecount"))
                 repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
         else if (!strcmp(name, "enable-log-linecount"))
                 repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
+        else if (!strcmp(name, "enable-remote-branches"))
+                repo->enable_remote_branches = atoi(value);
+        else if (!strcmp(name, "enable-subject-links"))
+                repo->enable_subject_links = atoi(value);
         else if (!strcmp(name, "max-stats"))
                 repo->max_stats = cgit_find_stats_period(value, NULL);
         else if (!strcmp(name, "module-link"))
                 repo->module_link= xstrdup(value);
         else if (!strcmp(name, "section"))
                 repo->section = xstrdup(value);
-        else if (!strcmp(name, "readme") && value != NULL) {
-                if (*value == '/')
-                        repo->readme = xstrdup(value);
-                else
-                        repo->readme = xstrdup(fmt("%s/%s", repo->path, value));
-        } else if (ctx.cfg.enable_filter_overrides) {
+        else if (!strcmp(name, "readme") && value != NULL)
+                repo->readme = xstrdup(value);
+        else if (!strcmp(name, "logo") && value != NULL)
+                repo->logo = xstrdup(value);
+        else if (!strcmp(name, "logo-link") && value != NULL)
+                repo->logo_link = xstrdup(value);
+        else if (ctx.cfg.enable_filter_overrides) {
                 if (!strcmp(name, "about-filter"))
                         repo->about_filter = new_filter(value, 0);
                 else if (!strcmp(name, "commit-filter"))
@@ -91,6 +99,8 @@ void config_cb(const char *name, const char *value)
                 ctx.repo->path = trim_end(value, '/');
         else if (ctx.repo && !prefixcmp(name, "repo."))
                 repo_config(ctx.repo, name + 5, value);
+        else if (!strcmp(name, "readme"))
+                ctx.cfg.readme = xstrdup(value);
         else if (!strcmp(name, "root-title"))
                 ctx.cfg.root_title = xstrdup(value);
         else if (!strcmp(name, "root-desc"))
@@ -117,6 +127,8 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.logo_link = xstrdup(value);
         else if (!strcmp(name, "module-link"))
                 ctx.cfg.module_link = xstrdup(value);
+        else if (!strcmp(name, "strict-export"))
+                ctx.cfg.strict_export = xstrdup(value);
         else if (!strcmp(name, "virtual-root")) {
                 ctx.cfg.virtual_root = trim_end(value, '/');
                 if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
@@ -131,12 +143,20 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
         else if (!strcmp(name, "enable-filter-overrides"))
                 ctx.cfg.enable_filter_overrides = atoi(value);
+        else if (!strcmp(name, "enable-gitweb-owner"))
+                ctx.cfg.enable_gitweb_owner = atoi(value);
         else if (!strcmp(name, "enable-index-links"))
                 ctx.cfg.enable_index_links = atoi(value);
+        else if (!strcmp(name, "enable-commit-graph"))
+                ctx.cfg.enable_commit_graph = atoi(value);
         else if (!strcmp(name, "enable-log-filecount"))
                 ctx.cfg.enable_log_filecount = atoi(value);
         else if (!strcmp(name, "enable-log-linecount"))
                 ctx.cfg.enable_log_linecount = atoi(value);
+        else if (!strcmp(name, "enable-remote-branches"))
+                ctx.cfg.enable_remote_branches = atoi(value);
+        else if (!strcmp(name, "enable-subject-links"))
+                ctx.cfg.enable_subject_links = atoi(value);
         else if (!strcmp(name, "enable-tree-linenumbers"))
                 ctx.cfg.enable_tree_linenumbers = atoi(value);
         else if (!strcmp(name, "max-stats"))
@@ -144,7 +164,7 @@ void config_cb(const char *name, const char *value)
         else if (!strcmp(name, "cache-size"))
                 ctx.cfg.cache_size = atoi(value);
         else if (!strcmp(name, "cache-root"))
-                ctx.cfg.cache_root = xstrdup(value);
+                ctx.cfg.cache_root = xstrdup(expand_macros(value));
         else if (!strcmp(name, "cache-root-ttl"))
                 ctx.cfg.cache_root_ttl = atoi(value);
         else if (!strcmp(name, "cache-repo-ttl"))
@@ -161,19 +181,32 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.commit_filter = new_filter(value, 0);
         else if (!strcmp(name, "embedded"))
                 ctx.cfg.embedded = atoi(value);
+        else if (!strcmp(name, "max-atom-items"))
+                ctx.cfg.max_atom_items = atoi(value);
         else if (!strcmp(name, "max-message-length"))
                 ctx.cfg.max_msg_len = atoi(value);
         else if (!strcmp(name, "max-repodesc-length"))
                 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"))
                 ctx.cfg.max_repo_count = atoi(value);
         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));
         else if (!strcmp(name, "scan-path"))
                 if (!ctx.cfg.nocache && ctx.cfg.cache_size)
-                        process_cached_repolist(value);
+                        process_cached_repolist(expand_macros(value));
+                else if (ctx.cfg.project_list)
+                        scan_projects(expand_macros(value),
+                                      ctx.cfg.project_list, repo_config);
                 else
-                        scan_tree(value, repo_config);
+                        scan_tree(expand_macros(value), repo_config);
+        else if (!strcmp(name, "scan-hidden-path"))
+                ctx.cfg.scan_hidden_path = atoi(value);
+        else if (!strcmp(name, "section-from-path"))
+                ctx.cfg.section_from_path = atoi(value);
         else if (!strcmp(name, "source-filter"))
                 ctx.cfg.source_filter = new_filter(value, 1);
         else if (!strcmp(name, "summary-log"))
@@ -182,10 +215,14 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.summary_branches = atoi(value);
         else if (!strcmp(name, "summary-tags"))
                 ctx.cfg.summary_tags = atoi(value);
+        else if (!strcmp(name, "side-by-side-diffs"))
+                ctx.cfg.ssdiff = atoi(value);
         else if (!strcmp(name, "agefile"))
                 ctx.cfg.agefile = xstrdup(value);
         else if (!strcmp(name, "renamelimit"))
                 ctx.cfg.renamelimit = atoi(value);
+        else if (!strcmp(name, "remove-suffix"))
+                ctx.cfg.remove_suffix = atoi(value);
         else if (!strcmp(name, "robots"))
                 ctx.cfg.robots = xstrdup(value);
         else if (!strcmp(name, "clone-prefix"))
@@ -195,7 +232,7 @@ void config_cb(const char *name, const char *value)
         else if (!prefixcmp(name, "mimetype."))
                 add_mimetype(name + 9, value);
         else if (!strcmp(name, "include"))
-                parse_configfile(value, config_cb);
+                parse_configfile(expand_macros(value), config_cb);
 }
 
 static void querystring_cb(const char *name, const char *value)
@@ -209,6 +246,8 @@ static void querystring_cb(const char *name, const char *value)
         } else if (!strcmp(name, "p")) {
                 ctx.qry.page = xstrdup(value);
         } else if (!strcmp(name, "url")) {
+                if (*value == '/')
+                        value++;
                 ctx.qry.url = xstrdup(value);
                 cgit_parse_url(value);
         } else if (!strcmp(name, "qt")) {
@@ -238,6 +277,14 @@ static void querystring_cb(const char *name, const char *value)
                 ctx.qry.showmsg = atoi(value);
         } else if (!strcmp(name, "period")) {
                 ctx.qry.period = xstrdup(value);
+        } else if (!strcmp(name, "ss")) {
+                ctx.qry.ssdiff = atoi(value);
+        } else if (!strcmp(name, "all")) {
+                ctx.qry.show_all = atoi(value);
+        } else if (!strcmp(name, "context")) {
+                ctx.qry.context = atoi(value);
+        } else if (!strcmp(name, "ignorews")) {
+                ctx.qry.ignorews = atoi(value);
         }
 }
 
@@ -262,23 +309,30 @@ static void prepare_context(struct cgit_context *ctx)
         ctx->cfg.css = "/cgit.css";
         ctx->cfg.logo = "/cgit.png";
         ctx->cfg.local_time = 0;
+        ctx->cfg.enable_gitweb_owner = 1;
         ctx->cfg.enable_tree_linenumbers = 1;
         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.module_link = "./?repo=%s&page=commit&id=%s";
+        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.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 = xstrdupn(getenv("CGIT_CONFIG"));
         ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
         ctx->env.https = xstrdupn(getenv("HTTPS"));
@@ -410,6 +464,12 @@ static void process_request(void *cbdata)
                 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).
+         */
+        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);
@@ -491,6 +551,8 @@ void print_repo(FILE *f, struct cgit_repo *repo)
                 fprintf(f, "repo.section=%s\n", repo->section);
         if (repo->clone_url)
                 fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
+        fprintf(f, "repo.enable-commit-graph=%d\n",
+                repo->enable_commit_graph);
         fprintf(f, "repo.enable-log-filecount=%d\n",
                 repo->enable_log_filecount);
         fprintf(f, "repo.enable-log-linecount=%d\n",
@@ -541,7 +603,10 @@ static int generate_cached_repolist(const char *path, const char *cached_rc)
                 return errno;
         }
         idx = cgit_repolist.count;
-        scan_tree(path, repo_config);
+        if (ctx.cfg.project_list)
+                scan_projects(path, ctx.cfg.project_list, repo_config);
+        else
+                scan_tree(path, repo_config);
         print_repolist(f, &cgit_repolist, idx);
         if (rename(locked_rc, cached_rc))
                 fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
@@ -555,17 +620,25 @@ static void process_cached_repolist(const char *path)
         struct stat st;
         char *cached_rc;
         time_t age;
+        unsigned long hash;
 
-        cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
-                hash_str(path)));
+        hash = hash_str(path);
+        if (ctx.cfg.project_list)
+                hash += hash_str(ctx.cfg.project_list);
+        cached_rc = xstrdup(fmt("%s/rc-%8lx", ctx.cfg.cache_root, hash));
 
         if (stat(cached_rc, &st)) {
                 /* Nothing is cached, we need to scan without forking. And
                  * if we fail to generate a cached repolist, we need to
                  * invoke scan_tree manually.
                  */
-                if (generate_cached_repolist(path, cached_rc))
-                        scan_tree(path, repo_config);
+                if (generate_cached_repolist(path, cached_rc)) {
+                        if (ctx.cfg.project_list)
+                                scan_projects(path, ctx.cfg.project_list,
+                                              repo_config);
+                        else
+                                scan_tree(path, repo_config);
+                }
                 return;
         }
 
@@ -674,7 +747,7 @@ int main(int argc, const char **argv)
         cgit_repolist.repos = NULL;
 
         cgit_parse_args(argc, argv);
-        parse_configfile(ctx.env.cgit_config, config_cb);
+        parse_configfile(expand_macros(ctx.env.cgit_config), config_cb);
         ctx.repo = NULL;
         http_parse_querystring(ctx.qry.raw, querystring_cb);
 
diff --git a/cgit.css b/cgit.css
index c47ebc9..1d90057 100644
--- a/cgit.css
+++ b/cgit.css
@@ -64,7 +64,7 @@ table#header td.sub {
 }
 
 table.tabs {
-        /* border-bottom: solid 2px #ccc; */
+        border-bottom: solid 3px #ccc;
         border-collapse: collapse;
         margin-top: 2em;
         margin-bottom: 0px;
@@ -102,10 +102,16 @@ table.tabs td.form select {
         font-size: 90%;
 }
 
+div.path {
+        margin: 0px;
+        padding: 5px 2em 2px 2em;
+        color: #000;
+        background-color: #eee;
+}
+
 div.content {
         margin: 0px;
         padding: 2em;
-        border-top: solid 3px #ccc;
         border-bottom: solid 3px #ccc;
 }
 
@@ -147,6 +153,35 @@ table.list td {
         padding: 0.1em 0.5em 0.1em 0.5em;
 }
 
+table.list td.commitgraph {
+        font-family: monospace;
+        white-space: pre;
+}
+
+table.list td.commitgraph .column1 {
+        color: #a00;
+}
+
+table.list td.commitgraph .column2 {
+        color: #0a0;
+}
+
+table.list td.commitgraph .column3 {
+        color: #aa0;
+}
+
+table.list td.commitgraph .column4 {
+        color: #00a;
+}
+
+table.list td.commitgraph .column5 {
+        color: #a0a;
+}
+
+table.list td.commitgraph .column6 {
+        color: #0aa;
+}
+
 table.list td.logsubject {
         font-family: monospace;
         font-weight: bold;
@@ -155,13 +190,18 @@ table.list td.logsubject {
 table.list td.logmsg {
         font-family: monospace;
         white-space: pre;
-        padding: 1em 0.5em 2em 0.5em;
+        padding: 0 0.5em;
 }
 
 table.list td a {
         color: black;
 }
 
+table.list td a.ls-dir {
+        font-weight: bold;
+        color: #00f;
+}
+
 table.list td a:hover {
         color: #00f;
 }
@@ -253,7 +293,7 @@ table.blob pre {
         padding: 0; margin: 0;
 }
 
-table.blob a.no {
+table.blob a.no, table.ssdiff a.no {
         color: gray;
         text-align: right;
         text-decoration: none;
@@ -315,6 +355,24 @@ div.commit-msg {
         font-family: monospace;
 }
 
+div.notes-header {
+        font-weight: bold;
+        padding-top: 1.5em;
+}
+
+div.notes {
+        white-space: pre;
+        font-family: monospace;
+        border: solid 1px #ee9;
+        background-color: #ffd;
+        padding: 0.3em 2em 0.3em 1em;
+        float: left;
+}
+
+div.notes-footer {
+        clear: left;
+}
+
 div.diffstat-header {
         font-weight: bold;
         padding-top: 1.5em;
@@ -520,7 +578,10 @@ a.deco {
         border: solid 1px #770000;
 }
 
-div.commit-subject a {
+div.commit-subject a.branch-deco,
+div.commit-subject a.tag-deco,
+div.commit-subject a.remote-deco,
+div.commit-subject a.deco {
         margin-left: 1em;
         font-size: 75%;
 }
@@ -601,3 +662,116 @@ table.hgraph div.bar {
         background-color: #eee;
         height: 1em;
 }
+
+table.ssdiff {
+        width: 100%;
+}
+
+table.ssdiff td {
+        font-size: 75%;
+        font-family: monospace;
+        white-space: pre;
+        padding: 1px 4px 1px 4px;
+        border-left: solid 1px #aaa;
+        border-right: solid 1px #aaa;
+}
+
+table.ssdiff td.add {
+        color: black;
+        background: #cfc;
+        min-width: 50%;
+}
+
+table.ssdiff td.add_dark {
+        color: black;
+        background: #aca;
+        min-width: 50%;
+}
+
+table.ssdiff span.add {
+        background: #cfc;
+        font-weight: bold;
+}
+
+table.ssdiff td.del {
+        color: black;
+        background: #fcc;
+        min-width: 50%;
+}
+
+table.ssdiff td.del_dark {
+        color: black;
+        background: #caa;
+        min-width: 50%;
+}
+
+table.ssdiff span.del {
+        background: #fcc;
+        font-weight: bold;
+}
+
+table.ssdiff td.changed {
+        color: black;
+        background: #ffc;
+        min-width: 50%;
+}
+
+table.ssdiff td.changed_dark {
+        color: black;
+        background: #cca;
+        min-width: 50%;
+}
+
+table.ssdiff td.lineno {
+        color: black;
+        background: #eee;
+        text-align: right;
+        width: 3em;
+        min-width: 3em;
+}
+
+table.ssdiff td.hunk {
+        color: #black;
+        background: #ccf;
+        border-top: solid 1px #aaa;
+        border-bottom: solid 1px #aaa;
+}
+
+table.ssdiff td.head {
+        border-top: solid 1px #aaa;
+        border-bottom: solid 1px #aaa;
+}
+
+table.ssdiff td.head div.head {
+        font-weight: bold;
+        color: black;
+}
+
+table.ssdiff td.foot {
+        border-top: solid 1px #aaa;
+        border-left: none;
+        border-right: none;
+        border-bottom: none;
+}
+
+table.ssdiff td.space {
+        border: none;
+}
+
+table.ssdiff td.space div {
+        min-height: 3em;
+}
+
+/* Syntax highlighting */
+table.blob .num  { color:#2928ff; }
+table.blob .esc  { color:#ff00ff; }
+table.blob .str  { color:#ff0000; }
+table.blob .dstr { color:#818100; }
+table.blob .slc  { color:#838183; font-style:italic; }
+table.blob .com  { color:#838183; font-style:italic; }
+table.blob .dir  { color:#008200; }
+table.blob .sym  { color:#000000; }
+table.blob .kwa  { color:#000000; font-weight:bold; }
+table.blob .kwb  { color:#830000; }
+table.blob .kwc  { color:#000000; font-weight:bold; }
+table.blob .kwd  { color:#010181; }
diff --git a/cgit.h b/cgit.h
index 6c6c460..b5f00fc 100644
--- a/cgit.h
+++ b/cgit.h
@@ -19,6 +19,8 @@
 #include <xdiff-interface.h>
 #include <xdiff/xdiff.h>
 #include <utf8.h>
+#include <notes.h>
+#include <graph.h>
 
 
 /*
@@ -69,9 +71,14 @@ struct cgit_repo {
         char *readme;
         char *section;
         char *clone_url;
+        char *logo;
+        char *logo_link;
         int snapshots;
+        int enable_commit_graph;
         int enable_log_filecount;
         int enable_log_linecount;
+        int enable_remote_branches;
+        int enable_subject_links;
         int max_stats;
         time_t mtime;
         struct cgit_filter *about_filter;
@@ -143,6 +150,11 @@ struct cgit_query {
         int nohead;
         char *sort;
         int showmsg;
+        int ssdiff;
+        int show_all;
+        int context;
+        int ignorews;
+        char *vpath;
 };
 
 struct cgit_config {
@@ -159,6 +171,8 @@ struct cgit_config {
         char *logo;
         char *logo_link;
         char *module_link;
+        char *project_list;
+        char *readme;
         char *robots;
         char *root_title;
         char *root_desc;
@@ -166,6 +180,7 @@ struct cgit_config {
         char *script_name;
         char *section;
         char *virtual_root;
+        char *strict_export;
         int cache_size;
         int cache_dynamic_ttl;
         int cache_max_create_time;
@@ -175,25 +190,35 @@ struct cgit_config {
         int cache_static_ttl;
         int embedded;
         int enable_filter_overrides;
+        int enable_gitweb_owner;
         int enable_index_links;
+        int enable_commit_graph;
         int enable_log_filecount;
         int enable_log_linecount;
+        int enable_remote_branches;
+        int enable_subject_links;
         int enable_tree_linenumbers;
         int local_time;
+        int max_atom_items;
         int max_repo_count;
         int max_commit_count;
         int max_lock_attempts;
         int max_msg_len;
         int max_repodesc_len;
+        int max_blob_size;
         int max_stats;
         int nocache;
         int noplainemail;
         int noheader;
         int renamelimit;
+        int remove_suffix;
+        int scan_hidden_path;
+        int section_from_path;
         int snapshots;
         int summary_branches;
         int summary_log;
         int summary_tags;
+        int ssdiff;
         struct string_list mimetypes;
         struct cgit_filter *about_filter;
         struct cgit_filter *commit_filter;
@@ -268,14 +293,17 @@ extern void *cgit_free_commitinfo(struct commitinfo *info);
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            unsigned long *old_size, unsigned long *new_size,
-                           int *binary, linediff_fn fn);
+                           int *binary, int context, int ignorews,
+                           linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
-                           filepair_fn fn, const char *prefix);
+                           filepair_fn fn, const char *prefix, int ignorews);
 
-extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
+extern void cgit_diff_commit(struct commit *commit, filepair_fn fn,
+                             const char *prefix);
 
+__attribute__((format (printf,1,2)))
 extern char *fmt(const char *format,...);
 
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
@@ -291,4 +319,6 @@ extern int cgit_close_filter(struct cgit_filter *filter);
 
 extern int readfile(const char *path, char **buf, size_t *size);
 
+extern char *expand_macros(const char *txt);
+
 #endif /* CGIT_H */
diff --git a/cgit.png b/cgit.png
index d7f70bc..0bdf5a7 100644
--- a/cgit.png
+++ b/cgit.png
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 0c13485..c3698a6 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -90,11 +90,21 @@ embedded::
         Flag which, when set to "1", will make cgit generate a html fragment
         suitable for embedding in other html pages. Default value: none. See
         also: "noheader".
-        
+
+enable-commit-graph::
+        Flag which, when set to "1", will make cgit print an ASCII-art commit
+        history graph to the left of the commit messages in the repository
+        log page. Default value: "0".
+
 enable-filter-overrides::
         Flag which, when set to "1", allows all filter settings to be
         overridden in repository-specific cgitrc files. Default value: none.
 
+enable-gitweb-owner::
+        If set to "1" and scan-path is enabled, we first check each repository
+        for the git config value "gitweb.owner" to determine the owner.
+        Default value: "1". See also: scan-path.
+
 enable-index-links::
         Flag which, when set to "1", will make cgit generate extra links for
         each repo in the repository index (specifically, to the "summary",
@@ -110,6 +120,17 @@ enable-log-linecount::
         and removed lines for each commit on the repository log page. Default
         value: "0".
 
+enable-remote-branches::
+        Flag which, when set to "1", will make cgit display remote branches
+        in the summary and refs views. Default value: "0". See also:
+        "repo.enable-remote-branches".
+
+enable-subject-links::
+        Flag which, when set to "1", will make cgit use the subject of the
+        parent commit as link text when generating links to parent commits
+        in commit view. Default value: "0". See also:
+        "repo.enable-subject-links".
+
 enable-tree-linenumbers::
         Flag which, when set to "1", will make cgit generate linenumber links
         for plaintext blobs printed in the tree view. Default value: "1".
@@ -161,6 +182,10 @@ logo-link::
         calculated url of the repository index page will be used. Default
         value: none.
 
+max-atom-items::
+        Specifies the number of items to display in atom feeds view. Default
+        value: "10".
+
 max-commit-count::
         Specifies the number of entries to list per page in "log" view. Default
         value: "50".
@@ -177,6 +202,10 @@ max-repodesc-length::
         Specifies the maximum number of repo description characters to display
         on the repository index page. Default value: "80".
 
+max-blob-size::
+        Specifies the maximum size of a blob to display HTML for in KBytes.
+        Default value: "0" (limit disabled).
+
 max-stats::
         Set the default maximum statistics period. Valid values are "week",
         "month", "quarter" and "year". If unspecified, statistics are
@@ -205,6 +234,20 @@ noheader::
         Flag which, when set to "1", will make cgit omit the standard header
         on all pages. Default value: none. See also: "embedded".
 
+project-list::
+        A list of subdirectories inside of scan-path, relative to it, that
+        should loaded as git repositories. This must be defined prior to
+        scan-path. Default value: none. See also: scan-path.
+
+readme::
+        Text which will be used as default value for "repo.readme". Default
+        value: none.
+
+remove-suffix::
+        If set to "1" and scan-path is enabled, if any repositories are found
+        with a suffix of ".git", this suffix will be removed for the url and
+        name. Default value: "0". See also: scan-path.
+
 renamelimit::
         Maximum number of files to consider when detecting renames. The value
          "-1" uses the compiletime value in git (for further info, look at
@@ -231,16 +274,37 @@ root-title::
         Text printed as heading on the repository index page. Default value:
         "Git Repository Browser".
 
+scan-hidden-path::
+        If set to "1" and scan-path is enabled, scan-path will recurse into
+        directories whose name starts with a period ('.'). Otherwise,
+        scan-path will stay away from such directories (considered as
+        "hidden"). Note that this does not apply to the ".git" directory in
+        non-bare repos. This must be defined prior to scan-path.
+        Default value: 0. See also: scan-path.
+
 scan-path::
         A path which will be scanned for repositories. If caching is enabled,
         the result will be cached as a cgitrc include-file in the cache
-        directory. Default value: none. See also: cache-scanrc-ttl.
+        directory. If project-list has been defined prior to scan-path,
+        scan-path loads only the directories listed in the file pointed to by
+        project-list. Default value: none. See also: cache-scanrc-ttl,
+        project-list.
 
 section::
         The name of the current repository section - all repositories defined
         after this option will inherit the current section name. Default value:
         none.
 
+section-from-path::
+        A number which, if specified before scan-path, specifies how many
+        path elements from each repo path to use as a default section name.
+        If negative, cgit will discard the specified number of path elements
+        above the repo directory. Default value: 0.
+
+side-by-side-diffs::
+        If set to "1" shows side-by-side diffs instead of unidiffs per
+        default. Default value: "0".
+
 snapshots::
         Text which specifies the default set of snapshot formats generated by
         cgit. The value is a space-separated list of zero or more of the
@@ -266,6 +330,13 @@ summary-tags::
         Specifies the number of tags to display in the repository "summary"
         view. Default value: "10".
 
+strict-export::
+        Filename which, if specified, needs to be present within the repository
+        for cgit to allow access to that repository. This can be used to emulate
+        gitweb's EXPORT_OK and STRICT_EXPORT functionality and limit cgit's
+        repositories to match those exported by git-daemon. This option MUST come
+        before 'scan-path'.
+
 virtual-root::
         Url which, if specified, will be used as root for all cgit links. It
         will also cause cgit to generate 'virtual urls', i.e. urls like
@@ -296,6 +367,10 @@ repo.defbranch::
 repo.desc::
         The value to show as repository description. Default value: none.
 
+repo.enable-commit-graph::
+        A flag which can be used to disable the global setting
+        `enable-commit-graph'. Default value: none.
+
 repo.enable-log-filecount::
         A flag which can be used to disable the global setting
         `enable-log-filecount'. Default value: none.
@@ -304,6 +379,23 @@ repo.enable-log-linecount::
         A flag which can be used to disable the global setting
         `enable-log-linecount'. Default value: none.
 
+repo.enable-remote-branches::
+        Flag which, when set to "1", will make cgit display remote branches
+        in the summary and refs views. Default value: <enable-remote-branches>.
+
+repo.enable-subject-links::
+        A flag which can be used to override the global setting
+        `enable-subject-links'. Default value: none.
+
+repo.logo::
+        Url which specifies the source of an image which will be used as a logo
+        on this repo's pages. Default value: global logo.
+
+repo.logo-link::
+        Url loaded when clicking on the cgit logo image. If unspecified the
+        calculated url of the repository index page will be used. Default
+        value: global logo-link.
+
 repo.max-stats::
         Override the default maximum statistics period. Valid values are equal
         to the values specified for the global "max-stats" setting. Default
@@ -322,7 +414,9 @@ repo.path::
 
 repo.readme::
         A path (relative to <repo.path>) which specifies a file to include
-        verbatim as the "About" page for this repo. Default value: none.
+        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" Default value: <readme>.
 
 repo.snapshots::
         A mask of allowed snapshot-formats for this repo, restricted by the
@@ -363,7 +457,7 @@ cache-size=1000
 
 
 # Specify some default clone prefixes
-clone-prefix=git://foobar.com ssh://foobar.com/pub/git http://foobar.com/git
+clone-prefix=git://example.com ssh://example.com/pub/git http://example.com/git
 
 # Specify the css url
 css=/css/cgit.css
@@ -373,6 +467,10 @@ css=/css/cgit.css
 enable-index-links=1
 
 
+# Enable ASCII art commit history graph on the log pages
+enable-commit-graph=1
+
+
 # Show number of affected files per commit on the log pages
 enable-log-filecount=1
 
@@ -394,14 +492,14 @@ max-stats=quarter
 
 
 # Set the title and heading of the repository index page
-root-title=foobar.com git repositories
+root-title=example.com git repositories
 
 
 # Set a subheading for the repository index page
 root-desc=tracking the foobar development
 
 
-# Include some more info about foobar.com on the index page
+# Include some more info about example.com on the index page
 root-readme=/var/www/htdocs/about.html
 
 
@@ -413,7 +511,7 @@ snapshots=tar.gz tar.bz2 zip
 ## List of common mimetypes
 ##
 
-mimetype.git=image/git
+mimetype.gif=image/gif
 mimetype.html=text/html
 mimetype.jpg=image/jpeg
 mimetype.jpeg=image/jpeg
@@ -435,14 +533,14 @@ mimetype.svg=image/svg+xml
 repo.url=foo
 repo.path=/pub/git/foo.git
 repo.desc=the master foo repository
-repo.owner=fooman@foobar.com
+repo.owner=fooman@example.com
 repo.readme=info/web/about.html
 
 
 repo.url=bar
 repo.path=/pub/git/bar.git
 repo.desc=the bars for your foo
-repo.owner=barman@foobar.com
+repo.owner=barman@example.com
 repo.readme=info/web/about.html
 
 
@@ -499,3 +597,4 @@ will generate the following html element:
 AUTHOR
 ------
 Lars Hjemli <hjemli@gmail.com>
+Jason A. Donenfeld <Jason@zx2c4.com>
diff --git a/cmd.c b/cmd.c
index 766f903..536515b 100644
--- a/cmd.c
+++ b/cmd.c
@@ -33,7 +33,7 @@ static void HEAD_fn(struct cgit_context *ctx)
 
 static void atom_fn(struct cgit_context *ctx)
 {
-        cgit_print_atom(ctx->qry.head, ctx->qry.path, 10);
+        cgit_print_atom(ctx->qry.head, ctx->qry.path, ctx->cfg.max_atom_items);
 }
 
 static void about_fn(struct cgit_context *ctx)
@@ -51,7 +51,7 @@ static void blob_fn(struct cgit_context *ctx)
 
 static void commit_fn(struct cgit_context *ctx)
 {
-        cgit_print_commit(ctx->qry.sha1);
+        cgit_print_commit(ctx->qry.sha1, ctx->qry.path);
 }
 
 static void diff_fn(struct cgit_context *ctx)
@@ -67,7 +67,8 @@ static void info_fn(struct cgit_context *ctx)
 static void log_fn(struct cgit_context *ctx)
 {
         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->qry.grep, ctx->qry.search, ctx->qry.path, 1,
+                       ctx->repo->enable_commit_graph);
 }
 
 static void ls_cache_fn(struct cgit_context *ctx)
@@ -90,7 +91,7 @@ static void repolist_fn(struct cgit_context *ctx)
 
 static void patch_fn(struct cgit_context *ctx)
 {
-        cgit_print_patch(ctx->qry.sha1);
+        cgit_print_patch(ctx->qry.sha1, ctx->qry.path);
 }
 
 static void plain_fn(struct cgit_context *ctx)
@@ -129,31 +130,31 @@ static void tree_fn(struct cgit_context *ctx)
         cgit_print_tree(ctx->qry.sha1, ctx->qry.path);
 }
 
-#define def_cmd(name, want_repo, want_layout) \
-        {#name, name##_fn, want_repo, want_layout}
+#define def_cmd(name, want_repo, want_layout, want_vpath) \
+        {#name, name##_fn, want_repo, want_layout, want_vpath}
 
 struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
 {
         static struct cgit_cmd cmds[] = {
-                def_cmd(HEAD, 1, 0),
-                def_cmd(atom, 1, 0),
-                def_cmd(about, 0, 1),
-                def_cmd(blob, 1, 0),
+                def_cmd(HEAD, 1, 0, 0),
+                def_cmd(atom, 1, 0, 0),
+                def_cmd(about, 0, 1, 0),
+                def_cmd(blob, 1, 0, 0),