Add submodule links in tree listing

When a submodule occurs in a tree, generate a link to show the
module/commit. The link is specified as a sprintf string in /etc/cgitrc,
using parameters 'module-link' and 'repo.module-link'. This should probably
be extended with repo.module-link.$path.

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

6 files changed, 27 insertions, 12 deletions

diff --git a/cgit.css b/cgit.css
index 640bbc9..ef4bc62 100644
--- a/cgit.css
+++ b/cgit.css
@@ -138,13 +138,13 @@ div#blob {
 div.error {
         color: red;
         font-weight: bold;
         margin: 1em 2em;
 }
 
-div.ls-blob, div.ls-dir {
+td.ls-blob, td.ls-dir, td.ls-mod {
         font-family: monospace;
 }
 
 div.ls-dir a {
         font-weight: bold;
 }
diff --git a/cgit.h b/cgit.h
index 292e488..b7f8827 100644
--- a/cgit.h
+++ b/cgit.h
@@ -30,12 +30,13 @@ struct cacheitem {
 struct repoinfo {
         char *url;
         char *name;
         char *path;
         char *desc;
         char *owner;
+        char *module_link;
         int snapshots;
 };
 
 struct repolist {
         int length;
         int count;
@@ -67,12 +68,13 @@ extern struct repolist cgit_repolist;
 extern struct repoinfo *cgit_repo;
 
 extern char *cgit_root_title;
 extern char *cgit_css;
 extern char *cgit_logo;
 extern char *cgit_logo_link;
+extern char *cgit_module_link;
 extern char *cgit_virtual_root;
 extern char *cgit_cache_root;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;
 extern int cgit_max_lock_attempts;
diff --git a/cgitrc b/cgitrc
index 3bae642..f217b39 100644
--- a/cgitrc
+++ b/cgitrc
@@ -44,12 +44,16 @@
 
 
 ## Url loaded when clicking the logo
 #logo-link=http://www.kernel.org/pub/software/scm/git/docs/
 
 
+## Url loaded when clicking a submodule link
+#module-link=./?repo=%s&page=commit&id=%s
+
+
 ## Number of chars shown of commit subject message (in log view)
 #max-message-length=60
 
 
 ## Root of cached output
 #cache-root=/var/cache/cgit
@@ -78,7 +82,8 @@
 ## repository section must start with repo.url).
 #repo.url=cgit
 #repo.name=cgit
 #repo.desc=the caching cgi for git
 #repo.path=/pub/git/cgit
 #repo.owner=Lars Hjemli
-#repo.snapshots=1    # override a sitewide snapshot-setting
+        #repo.snapshots=1                       # override a sitewide snapshot-setting
+        #repo.module-link=/git/%s/commit/?id=%s         # override the standard module-link
diff --git a/html.c b/html.c
index c0b2ed4..175b4b6 100644
--- a/html.c
+++ b/html.c
@@ -155,13 +155,14 @@ void html_fileperm(unsigned short mode)
 void html_filemode(unsigned short mode)
 {
         if (S_ISDIR(mode))
                 html("d");
         else if (S_ISLNK(mode))
                 html("l");
+        else if (S_ISDIRLNK(mode))
+                html("m");
         else
                 html("-");
         html_fileperm(mode >> 6);
         html_fileperm(mode >> 3);
         html_fileperm(mode);
 }
-
diff --git a/shared.c b/shared.c
index 531d8c0..19d2df0 100644
--- a/shared.c
+++ b/shared.c
@@ -12,12 +12,13 @@ struct repolist cgit_repolist;
 struct repoinfo *cgit_repo;
 
 char *cgit_root_title   = "Git repository browser";
 char *cgit_css          = "/cgit.css";
 char *cgit_logo         = "/git-logo.png";
 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
+char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
 char *cgit_virtual_root = NULL;
 
 char *cgit_cache_root   = "/var/cache/cgit";
 
 int cgit_nocache               =  0;
 int cgit_snapshots             =  0;
@@ -82,12 +83,13 @@ struct repoinfo *add_repo(const char *url)
         ret->url = xstrdup(url);
         ret->name = ret->url;
         ret->path = NULL;
         ret->desc = NULL;
         ret->owner = NULL;
         ret->snapshots = cgit_snapshots;
+        ret->module_link = cgit_module_link;
         return ret;
 }
 
 void cgit_global_config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "root-title"))
@@ -95,12 +97,14 @@ void cgit_global_config_cb(const char *name, const char *value)
         else if (!strcmp(name, "css"))
                 cgit_css = xstrdup(value);
         else if (!strcmp(name, "logo"))
                 cgit_logo = xstrdup(value);
         else if (!strcmp(name, "logo-link"))
                 cgit_logo_link = xstrdup(value);
+        else if (!strcmp(name, "module-link"))
+                cgit_module_link = xstrdup(value);
         else if (!strcmp(name, "virtual-root"))
                 cgit_virtual_root = xstrdup(value);
         else if (!strcmp(name, "nocache"))
                 cgit_nocache = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 cgit_snapshots = atoi(value);
@@ -125,12 +129,14 @@ void cgit_global_config_cb(const char *name, const char *value)
         else if (cgit_repo && !strcmp(name, "repo.desc"))
                 cgit_repo->desc = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.owner"))
                 cgit_repo->owner = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
                 cgit_repo->snapshots = atoi(value);
+        else if (cgit_repo && !strcmp(name, "repo.module-link"))
+                cgit_repo->module_link= xstrdup(value);
 }
 
 void cgit_repo_config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "name"))
                 cgit_repo_name = xstrdup(value);
diff --git a/ui-tree.c b/ui-tree.c
index 60f7560..dee8309 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -12,44 +12,45 @@
 static int print_entry(const unsigned char *sha1, const char *base, 
                        int baselen, const char *pathname, unsigned int mode, 
                        int stage)
 {
         char *name;
         enum object_type type;
-        unsigned long size;
+        unsigned long size = 0;
 
         name = xstrdup(pathname);
         type = sha1_object_info(sha1, &size);
-        if (type == OBJ_BAD) {
+        if (type == OBJ_BAD && !S_ISDIRLNK(mode)) {
                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
                       name,
                       sha1_to_hex(sha1));
                 return 0;
         }
         html("<tr><td class='filemode'>");
         html_filemode(mode);
-        html("</td><td>");
+        html("</td><td ");
         if (S_ISDIRLNK(mode)) {
-                htmlf("<div class='ls-dirlnk'>%s => submodule</div>", name);
+                htmlf("class='ls-mod'><a href='");
+                html_attr(fmt(cgit_repo->module_link,
+                              name,
+                              sha1_to_hex(sha1)));
         } else if (S_ISDIR(mode)) {
-                html("<div class='ls-dir'><a href='");
+                html("class='ls-dir'><a href='");
                 html_attr(cgit_pageurl(cgit_query_repo, "tree", 
                                        fmt("id=%s&path=%s%s/", 
                                            sha1_to_hex(sha1),
                                            cgit_query_path ? cgit_query_path : "",
                                            pathname)));
-                htmlf("'>%s</a></div>", name);
         } else {
-                html("<div class='ls-blob'><a href='");
+                html("class='ls-blob'><a href='");
                 html_attr(cgit_pageurl(cgit_query_repo, "view",
                                       fmt("id=%s&path=%s%s", sha1_to_hex(sha1),
                                           cgit_query_path ? cgit_query_path : "",
                                           pathname)));
-                htmlf("'>%s</a></div>", name);
         }
-        html("</div></td>");
+        htmlf("'>%s</a></div></td>", name);
         htmlf("<td class='filesize'>%li</td>", size);
         html("</tr>\n");
         free(name);
         return 0;
 }