29 files changed, 1148 insertions, 259 deletions

diff --git a/Makefile b/Makefile
index 1dc44d5..3a4d974 100644
--- a/Makefile
+++ b/Makefile
@@ -5,12 +5,15 @@ CGIT_DATA_PATH = $(CGIT_SCRIPT_PATH)
 CGIT_CONFIG = /etc/cgitrc
 CACHE_ROOT = /var/cache/cgit
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 1.6.4.3
+GIT_VER = 1.7.0
 GIT_URL = http://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.bz2
 INSTALL = install
 
 # 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).
 #
 
@@ -68,7 +71,7 @@ endif
         $(QUIET_CC)$(CC) -o $*.o -c $(CFLAGS) $<
 
 
-EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lcrypto
+EXTLIBS = git/libgit.a git/xdiff/lib.a -lz
 OBJECTS =
 OBJECTS += cache.o
 OBJECTS += cgit.o
@@ -90,6 +93,7 @@ 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
@@ -123,6 +127,12 @@ endif
 ifdef NO_STRCASESTR
         CFLAGS += -DNO_STRCASESTR
 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)
@@ -132,8 +142,8 @@ cgit.o: VERSION
 -include $(OBJECTS:.o=.d)
 
 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
diff --git a/cgit.c b/cgit.c
index 6c7e811..ab25b6a 100644
--- a/cgit.c
+++ b/cgit.c
@@ -60,6 +60,10 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
                 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"))
@@ -137,6 +141,10 @@ void config_cb(const char *name, const char *value)
                 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"))
@@ -161,10 +169,14 @@ 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"))
@@ -182,6 +194,8 @@ 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"))
@@ -209,6 +223,8 @@ 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 +254,12 @@ 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);
         }
 }
 
@@ -268,6 +290,7 @@ static void prepare_context(struct cgit_context *ctx)
         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.renamelimit = -1;
@@ -279,6 +302,8 @@ static void prepare_context(struct cgit_context *ctx)
         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 +435,12 @@ 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);
diff --git a/cgit.css b/cgit.css
index c47ebc9..6e47eb3 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;
 }
 
@@ -162,6 +168,11 @@ table.list td a {
         color: black;
 }
 
+table.list td a.ls-dir {
+        font-weight: bold;
+        color: #00f;
+}
+
 table.list td a:hover {
         color: #00f;
 }
@@ -520,7 +531,10 @@ 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 +615,102 @@ 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;
+}
\ No newline at end of file
diff --git a/cgit.h b/cgit.h
index 6c6c460..2b28d63 100644
--- a/cgit.h
+++ b/cgit.h
@@ -72,6 +72,8 @@ struct cgit_repo {
         int snapshots;
         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 +145,10 @@ struct cgit_query {
         int nohead;
         char *sort;
         int showmsg;
+        int ssdiff;
+        int show_all;
+        int context;
+        char *vpath;
 };
 
 struct cgit_config {
@@ -178,13 +184,17 @@ struct cgit_config {
         int enable_index_links;
         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;
@@ -194,6 +204,7 @@ struct cgit_config {
         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;
@@ -268,7 +279,7 @@ 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, linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 0c13485..a853522 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -110,6 +110,17 @@ 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 +172,10 @@ 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 +192,10 @@ 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
@@ -241,6 +260,10 @@ section::
         after this option will inherit the current section name. Default value:
         none.
 
+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
@@ -304,6 +327,14 @@ 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.max-stats::
         Override the default maximum statistics period. Valid values are equal
         to the values specified for the global "max-stats" setting. Default
@@ -413,7 +444,7 @@ 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
diff --git a/cmd.c b/cmd.c
index 766f903..6dc9f5e 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)
@@ -90,7 +90,7 @@ 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 +129,31 @@ 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(commit, 1, 1),
-                def_cmd(diff, 1, 1),
-                def_cmd(info, 1, 0),
-                def_cmd(log, 1, 1),
-                def_cmd(ls_cache, 0, 0),
-                def_cmd(objects, 1, 0),
-                def_cmd(patch, 1, 0),
-                def_cmd(plain, 1, 0),
-                def_cmd(refs, 1, 1),
-                def_cmd(repolist, 0, 0),
-                def_cmd(snapshot, 1, 0),
-                def_cmd(stats, 1, 1),
-                def_cmd(summary, 1, 1),
-                def_cmd(tag, 1, 1),
-                def_cmd(tree, 1, 1),
+                def_cmd(HEAD, 1, 0, 0),
+                def_cmd(atom, 1, 0, 0),
+                def_cmd(about, 0, 1, 0),
+                def_cmd(blob, 1, 0, 0),
+                def_cmd(commit, 1, 1, 1),
+                def_cmd(diff, 1, 1, 1),
+                def_cmd(info, 1, 0, 0),
+                def_cmd(log, 1, 1, 1),
+                def_cmd(ls_cache, 0, 0, 0),
+                def_cmd(objects, 1, 0, 0),
+                def_cmd(patch, 1, 0, 1),
+                def_cmd(plain, 1, 0, 0),
+                def_cmd(refs, 1, 1, 0),
+                def_cmd(repolist, 0, 0, 0),
+                def_cmd(snapshot, 1, 0, 0),
+                def_cmd(stats, 1, 1, 1),
+                def_cmd(summary, 1, 1, 0),
+                def_cmd(tag, 1, 1, 0),
+                def_cmd(tree, 1, 1, 1),
         };
         int i;
 
diff --git a/cmd.h b/cmd.h
index ec9e691..8dc01bd 100644
--- a/cmd.h
+++ b/cmd.h
@@ -7,7 +7,8 @@ struct cgit_cmd {
         const char *name;
         cgit_cmd_fn fn;
         unsigned int want_repo:1,
-                want_layout:1;
+                want_layout:1,
+                want_vpath:1;
 };
 
 extern struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx);
diff --git a/filters/syntax-highlighting.sh b/filters/syntax-highlighting.sh
index 999ad0c..6b1c576 100755
--- a/filters/syntax-highlighting.sh
+++ b/filters/syntax-highlighting.sh
@@ -3,6 +3,10 @@
 # tree-view by refering to this file with the source-filter or repo.source-
 # filter options in cgitrc.
 #
+# This script requires a shell supporting the ${var##pattern} syntax.
+# It is supported by at least dash and bash, however busybox environments
+# might have to