4 files changed, 45 insertions, 6 deletions

diff --git a/cgit.c b/cgit.c
index d6146e2..5666875 100644
--- a/cgit.c
+++ b/cgit.c
@@ -150,96 +150,98 @@ void config_cb(const char *name, const char *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"))
                 ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
         else if (!strcmp(name, "cache-size"))
                 ctx.cfg.cache_size = atoi(value);
         else if (!strcmp(name, "cache-root"))
                 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"))
                 ctx.cfg.cache_repo_ttl = atoi(value);
         else if (!strcmp(name, "cache-scanrc-ttl"))
                 ctx.cfg.cache_scanrc_ttl = atoi(value);
         else if (!strcmp(name, "cache-static-ttl"))
                 ctx.cfg.cache_static_ttl = atoi(value);
         else if (!strcmp(name, "cache-dynamic-ttl"))
                 ctx.cfg.cache_dynamic_ttl = atoi(value);
         else if (!strcmp(name, "about-filter"))
                 ctx.cfg.about_filter = new_filter(value, 0);
         else if (!strcmp(name, "commit-filter"))
                 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(expand_macros(value));
                 else if (ctx.cfg.project_list)
                         scan_projects(expand_macros(value),
                                       ctx.cfg.project_list, repo_config);
                 else
                         scan_tree(expand_macros(value), repo_config);
+        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"))
                 ctx.cfg.summary_log = atoi(value);
         else if (!strcmp(name, "summary-branches"))
                 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"))
                 ctx.cfg.clone_prefix = xstrdup(value);
         else if (!strcmp(name, "local-time"))
                 ctx.cfg.local_time = atoi(value);
         else if (!prefixcmp(name, "mimetype."))
                 add_mimetype(name + 9, value);
         else if (!strcmp(name, "include"))
                 parse_configfile(expand_macros(value), config_cb);
 }
 
 static void querystring_cb(const char *name, const char *value)
 {
         if (!value)
                 value = "";
 
         if (!strcmp(name,"r")) {
                 ctx.qry.repo = xstrdup(value);
                 ctx.repo = cgit_get_repoinfo(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")) {
                 ctx.qry.grep = xstrdup(value);
         } else if (!strcmp(name, "q")) {
                 ctx.qry.search = xstrdup(value);
         } else if (!strcmp(name, "h")) {
diff --git a/cgit.h b/cgit.h
index 4090cd4..9b269cc 100644
--- a/cgit.h
+++ b/cgit.h
@@ -160,96 +160,97 @@ struct cgit_config {
         char *css;
         char *favicon;
         char *footer;
         char *head_include;
         char *header;
         char *index_header;
         char *index_info;
         char *logo;
         char *logo_link;
         char *module_link;
         char *project_list;
         char *robots;
         char *root_title;
         char *root_desc;
         char *root_readme;
         char *script_name;
         char *section;
         char *virtual_root;
         int cache_size;
         int cache_dynamic_ttl;
         int cache_max_create_time;
         int cache_repo_ttl;
         int cache_root_ttl;
         int cache_scanrc_ttl;
         int cache_static_ttl;
         int embedded;
         int enable_filter_overrides;
         int enable_gitweb_owner;
         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;
         int noheader;
         int renamelimit;
         int remove_suffix;
+        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;
         struct cgit_filter *source_filter;
 };
 
 struct cgit_page {
         time_t modified;
         time_t expires;
         size_t size;
         char *mimetype;
         char *charset;
         char *filename;
         char *etag;
         char *title;
         int status;
         char *statusmsg;
 };
 
 struct cgit_environment {
         char *cgit_config;
         char *http_host;
         char *https;
         char *no_http;
         char *path_info;
         char *query_string;
         char *request_method;
         char *script_name;
         char *server_name;
         char *server_port;
 };
 
 struct cgit_context {
         struct cgit_environment env;
         struct cgit_query qry;
         struct cgit_config cfg;
         struct cgit_repo *repo;
         struct cgit_page page;
 };
 
 struct cgit_snapshot_format {
         const char *suffix;
         const char *mimetype;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index c643fae..95782df 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -233,96 +233,102 @@ 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.
 
 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
           `man git-diff`). Default value: "-1".
 
 repo.group::
         Legacy alias for "section". This option is deprecated and will not be
         supported in cgit-1.0.
 
 robots::
         Text used as content for the "robots" meta-tag. Default value:
         "index, nofollow".
 
 root-desc::
         Text printed below the heading on the repository index page. Default
         value: "a fast webinterface for the git dscm".
 
 root-readme::
         The content of the file specified with this option will be included
         verbatim below the "about" link on the repository index page. Default
         value: none.
 
 root-title::
         Text printed as heading on the repository index page. Default value:
         "Git Repository Browser".
 
 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. 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
         values "tar", "tar.gz", "tar.bz2" and "zip". Default value: none.
 
 source-filter::
         Specifies a command which will be invoked to format plaintext blobs
         in the tree view. The command will get the blob content on its STDIN
         and the name of the blob as its only command line argument. The STDOUT
         from the command will be included verbatim as the blob contents, i.e.
         this can be used to implement e.g. syntax highlighting. Default value:
         none.
 
 summary-branches::
         Specifies the number of branches to display in the repository "summary"
         view. Default value: "10".
 
 summary-log::
         Specifies the number of log entries to display in the repository
         "summary" view. Default value: "10".
 
 summary-tags::
         Specifies the number of tags to display in the repository "summary"
         view. Default value: "10".
 
 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
         '/cgit/tree/README' as opposed to '?r=cgit&p=tree&path=README'. Default
         value: none.
         NOTE: cgit has recently learned how to use PATH_INFO to achieve the
         same kind of virtual urls, so this option will probably be deprecated.
 
 REPOSITORY SETTINGS
 -------------------
 repo.about-filter::
         Override the default about-filter. Default value: none. See also:
         "enable-filter-overrides".
 
 repo.clone-url::
         A list of space-separated urls which can be used to clone this repo.
         Default value: none.
 
 repo.commit-filter::
diff --git a/scan-tree.c b/scan-tree.c
index e987824..6ba9193 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -16,148 +16,178 @@
 /* return 1 if path contains a objects/ directory and a HEAD file */
 static int is_git_dir(const char *path)
 {
         struct stat st;
         static char buf[MAX_PATH];
 
         if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
                 fprintf(stderr, "Insanely long path: %s\n", path);
                 return 0;
         }
         if (stat(buf, &st)) {
                 if (errno != ENOENT)
                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
                                 path, strerror(errno), errno);
                 return 0;
         }
         if (!S_ISDIR(st.st_mode))
                 return 0;
 
         sprintf(buf, "%s/HEAD", path);
         if (stat(buf, &st)) {
                 if (errno != ENOENT)
                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
                                 path, strerror(errno), errno);
                 return 0;
         }
         if (!S_ISREG(st.st_mode))
                 return 0;
 
         return 1;
 }
 
 struct cgit_repo *repo;
 repo_config_fn config_fn;
 char *owner;
 
 static void repo_config(const char *name, const char *value)
 {
         config_fn(repo, name, value);
 }
 
 static int git_owner_config(const char *key, const char *value, void *cb)
 {
         if (!strcmp(key, "gitweb.owner"))
                 owner = xstrdup(value);
         return 0;
 }
 
+static char *xstrrchr(char *s, char *from, int c)
+{
+        while (from >= s && *from != c)
+                from--;
+        return from < s ? NULL : from;
+}
+
 static void add_repo(const char *base, const char *path, repo_config_fn fn)
 {
         struct stat st;
         struct passwd *pwd;
-        char *p;
+        char *rel, *p, *slash;
+        int n;
         size_t size;
 
         if (stat(path, &st)) {
                 fprintf(stderr, "Error accessing %s: %s (%d)\n",
                         path, strerror(errno), errno);
                 return;
         }
         if (!stat(fmt("%s/noweb", path), &st))
                 return;
 
         owner = NULL;
         if (ctx.cfg.enable_gitweb_owner)
                 git_config_from_file(git_owner_config, fmt("%s/config", path), NULL);
         if (base == path)
-                p = fmt("%s", path);
+                rel = xstrdup(fmt("%s", path));
         else
-                p = fmt("%s", path + strlen(base) + 1);
+                rel = xstrdup(fmt("%s", path + strlen(base) + 1));
 
-        if (!strcmp(p + strlen(p) - 5, "/.git"))
-                p[strlen(p) - 5] = '\0';
+        if (!strcmp(rel + strlen(rel) - 5, "/.git"))
+                rel[strlen(rel) - 5] = '\0';
 
-        repo = cgit_add_repo(xstrdup(p));
+        repo = cgit_add_repo(rel);
         if (ctx.cfg.remove_suffix)
                 if ((p = strrchr(repo->url, '.')) && !strcmp(p, ".git"))
                         *p = '\0';
         repo->name = repo->url;
         repo->path = xstrdup(path);
         while (!owner) {
                 if ((pwd = getpwuid(st.st_uid)) == NULL) {
                         fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
                                 path, strerror(errno), errno);
                         break;
                 }
                 if (pwd->pw_gecos)
                         if ((p = strchr(pwd->pw_gecos, ',')))
                                 *p = '\0';
                 owner = xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name);
         }
         repo->owner = owner;
 
         p = fmt("%s/description", path);
         if (!stat(p, &st))
                 readfile(p, &repo->desc, &size);
 
         p = fmt("%s/README.html", path);
         if (!stat(p, &st))
                 repo->readme = "README.html";
+        if (ctx.cfg.section_from_path) {
+                n  = ctx.cfg.section_from_path;
+                if (n > 0) {
+                        slash = rel;
+                        while (slash && n && (slash = strchr(slash, '/')))
+                                n--;
+                } else {
+                        slash = rel + strlen(rel);
+                        while (slash && n && (slash = xstrrchr(rel, slash, '/')))
+                                n++;
+                }
+                if (slash && !n) {
+                        *slash = '\0';
+                        repo->section = xstrdup(rel);
+                        *slash = '/';
+                        if (!prefixcmp(repo->name, repo->section)) {
+                                repo->name += strlen(repo->section);
+                                if (*repo->name == '/')
+                                        repo->name++;
+                        }
+                }
+        }
 
         p = fmt("%s/cgitrc", path);
         if (!stat(p, &st)) {
                 config_fn = fn;
                 parse_configfile(xstrdup(p), &repo_config);
         }
 }
 
 static void scan_path(const char *base, const char *path, repo_config_fn fn)
 {
         DIR *dir;
         struct dirent *ent;
         char *buf;
         struct stat st;
 
         if (is_git_dir(path)) {
                 add_repo(base, path, fn);
                 return;
         }
         if (is_git_dir(fmt("%s/.git", path))) {
                 add_repo(base, fmt("%s/.git", path), fn);
                 return;
         }
         dir = opendir(path);
         if (!dir) {
                 fprintf(stderr, "Error opening directory %s: %s (%d)\n",
                         path, strerror(errno), errno);
                 return;
         }
         while((ent = readdir(dir)) != NULL) {
                 if (ent->d_name[0] == '.') {
                         if (ent->d_name[1] == '\0')
                                 continue;
                         if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
                                 continue;
                 }
                 buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
                 if (!buf) {
                         fprintf(stderr, "Alloc error on %s: %s (%d)\n",
                                 path, strerror(errno), errno);
                         exit(1);
                 }
                 sprintf(buf, "%s/%s", path, ent->d_name);
                 if (stat(buf, &st)) {
                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
                                 buf, strerror(errno), errno);
                         free(buf);
                         continue;