14 files changed, 205 insertions, 26 deletions

diff --git a/Makefile b/Makefile
index 0a5055b..3a4d974 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CGIT_VERSION = v0.8.3.1
+CGIT_VERSION = v0.8.3.2
 CGIT_SCRIPT_NAME = cgit.cgi
 CGIT_SCRIPT_PATH = /var/www/htdocs/cgit
 CGIT_DATA_PATH = $(CGIT_SCRIPT_PATH)
diff --git a/cgit.c b/cgit.c
index 9452884..c263872 100644
--- a/cgit.c
+++ b/cgit.c
@@ -62,6 +62,8 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
                 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"))
@@ -141,6 +143,8 @@ void config_cb(const char *name, const char *value)
                 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"))
@@ -148,7 +152,7 @@ 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"))
@@ -165,6 +169,8 @@ 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"))
@@ -177,9 +183,9 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.max_commit_count = atoi(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
-                        scan_tree(value, repo_config);
+                        scan_tree(expand_macros(value), repo_config);
         else if (!strcmp(name, "source-filter"))
                 ctx.cfg.source_filter = new_filter(value, 1);
         else if (!strcmp(name, "summary-log"))
@@ -203,7 +209,7 @@ 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)
@@ -250,6 +256,8 @@ static void querystring_cb(const char *name, const char *value)
                 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")) {
@@ -296,6 +304,7 @@ 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"));
@@ -698,7 +707,7 @@ 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 28a2eeb..6e47eb3 100644
--- a/cgit.css
+++ b/cgit.css
@@ -531,7 +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%;
 }
diff --git a/cgit.h b/cgit.h
index 1bdfbc6..e9e2718 100644
--- a/cgit.h
+++ b/cgit.h
@@ -73,6 +73,7 @@ struct cgit_repo {
         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;
@@ -145,6 +146,7 @@ struct cgit_query {
         char *sort;
         int showmsg;
         int ssdiff;
+        int show_all;
         int context;
         int ignorews;
         char *vpath;
@@ -184,8 +186,10 @@ struct cgit_config {
         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;
@@ -300,4 +304,6 @@ 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/cgitrc.5.txt b/cgitrc.5.txt
index 1f7ac1e..a853522 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -115,6 +115,12 @@ enable-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".
@@ -166,6 +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".
@@ -321,6 +331,10 @@ 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
diff --git a/cmd.c b/cmd.c
index 605876b..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)
diff --git a/parsing.c b/parsing.c
index f3f3b15..f37c49d 100644
--- a/parsing.c
+++ b/parsing.c
@@ -190,6 +190,10 @@ struct commitinfo *cgit_parse_commit(struct commit *commit)
                 ret->subject = xstrdup(p);
 
         if (ret->msg_encoding) {
+                reencode(&ret->author, PAGE_ENCODING, ret->msg_encoding);
+                reencode(&ret->author_email, PAGE_ENCODING, ret->msg_encoding);
+                reencode(&ret->committer, PAGE_ENCODING, ret->msg_encoding);
+                reencode(&ret->committer_email, PAGE_ENCODING, ret->msg_encoding);
                 reencode(&ret->subject, PAGE_ENCODING, ret->msg_encoding);
                 reencode(&ret->msg, PAGE_ENCODING, ret->msg_encoding);
         }
diff --git a/scan-tree.c b/scan-tree.c
index dbca797..1e18f3c 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -56,6 +56,8 @@ static void add_repo(const char *base, const char *path, repo_config_fn fn)
                         path, strerror(errno), errno);
                 return;
         }
+        if (!stat(fmt("%s/noweb", path), &st))
+                return;
         if ((pwd = getpwuid(st.st_uid)) == NULL) {
                 fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
                         path, strerror(errno), errno);
diff --git a/shared.c b/shared.c
index d0973ab..b42c2a2 100644
--- a/shared.c
+++ b/shared.c
@@ -59,6 +59,7 @@ struct cgit_repo *cgit_add_repo(const char *url)
         ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
         ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
         ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
+        ret->enable_subject_links = ctx.cfg.enable_subject_links;
         ret->max_stats = ctx.cfg.max_stats;
         ret->module_link = ctx.cfg.module_link;
         ret->readme = NULL;
@@ -279,6 +280,10 @@ int cgit_diff_files(const unsigned char *old_sha1,
         if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
             (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
                 *binary = 1;
+                if (file1.size)
+                        free(file1.ptr);
+                if (file2.size)
+                        free(file2.ptr);
                 return 0;
         }
 
@@ -293,6 +298,10 @@ int cgit_diff_files(const unsigned char *old_sha1,
         emit_cb.outf = filediff_cb;
         emit_cb.priv = fn;
         xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
+        if (file1.size)
+                free(file1.ptr);
+        if (file2.size)
+                free(file2.ptr);
         return 0;
 }
 
@@ -428,3 +437,74 @@ int readfile(const char *path, char **buf, size_t *size)
         close(fd);
         return (*size == st.st_size ? 0 : e);
 }
+
+int is_token_char(char c)
+{
+        return isalnum(c) || c == '_';
+}
+
+/* Replace name with getenv(name), return pointer to zero-terminating char
+ */
+char *expand_macro(char *name, int maxlength)
+{
+        char *value;
+        int len;
+
+        len = 0;
+        value = getenv(name);
+        if (value) {
+                len = strlen(value);
+                if (len > maxlength)
+                        len = maxlength;
+                strncpy(name, value, len);
+        }
+        return name + len;
+}
+
+#define EXPBUFSIZE (1024 * 8)
+
+/* Replace all tokens prefixed by '$' in the specified text with the
+ * value of the named environment variable.
+ * NB: the return value is a static buffer, i.e. it must be strdup'd
+ * by the caller.
+ */
+char *expand_macros(const char *txt)
+{
+        static char result[EXPBUFSIZE];
+        char *p, *start;
+        int len;
+
+        p = result;
+        start = NULL;
+        while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
+                *p = *txt;
+                if (start) {
+                        if (!is_token_char(*txt)) {
+                                if (p - start > 0) {
+                                        *p = '\0';
+                                        len = result + EXPBUFSIZE - start - 1;
+                                        p = expand_macro(start, len) - 1;
+                                }
+                                start = NULL;
+                                txt--;
+                        }
+                        p++;
+                        txt++;
+                        continue;
+                }
+                if (*txt == '$') {
+                        start = p;
+                        txt++;
+                        continue;
+                }
+                p++;
+                txt++;
+        }
+        *p = '\0';
+        if (start && p - start > 0) {
+                len = result + EXPBUFSIZE - start - 1;
+                p = expand_macro(start, len);
+                *p = '\0';
+        }
+        return result;
+}
diff --git a/ui-atom.c b/ui-atom.c
index 808b2d0..9f049ae 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -85,7 +85,9 @@ void cgit_print_atom(char *tip, char *path, int max_count)
         struct rev_info rev;
         int argc = 2;
 
-        if (!tip)
+        if (ctx.qry.show_all)
+                argv[1] = "--all";
+        else if (!tip)
                 argv[1] = ctx.qry.head;
 
         if (path) {
diff --git a/ui-commit.c b/ui-commit.c
index 2d98ed9..a11bc5f 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -15,10 +15,10 @@
 void cgit_print_commit(char *hex, const char *prefix)
 {
         struct commit *commit, *parent;
-        struct commitinfo *info;
+        struct commitinfo *info, *parent_info;
         struct commit_list *p;
         unsigned char sha1[20];
-        char *tmp;
+        char *tmp, *tmp2;
         int parents = 0;
 
         if (!hex)
@@ -86,9 +86,12 @@ void cgit_print_commit(char *hex, const char *prefix)
                 }
                 html("<tr><th>parent</th>"
                      "<td colspan='2' class='sha1'>");
-                cgit_commit_link(sha1_to_hex(p->item->object.sha1), NULL, NULL,
-                                 ctx.qry.head,
-                                 sha1_to_hex(p->item->object.sha1), prefix, 0);
+                tmp = tmp2 = sha1_to_hex(p->item->object.sha1);
+                if (ctx.repo->enable_subject_links) {
+                        parent_info = cgit_parse_commit(parent);
+                        tmp2 = parent_info->subject;
+                }
+                cgit_commit_link(tmp2, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
                 html(" (");
                 cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,
                                sha1_to_hex(p->item->object.sha1), prefix, 0);
diff --git a/ui-log.c b/ui-log.c
index 354ee08..ee93653 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -150,10 +150,13 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 
         argv[1] = disambiguate_ref(tip);
 
-        if (grep && pattern && (!strcmp(grep, "grep") ||
-                                !strcmp(grep, "author") ||
-                                !strcmp(grep, "committer")))
-                argv[argc++] = fmt("--%s=%s", grep, pattern);
+        if (grep && pattern) {
+                if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
+                    !strcmp(grep, "committer"))
+                        argv[argc++] = fmt("--%s=%s", grep, pattern);
+                if (!strcmp(grep, "range"))
+                        argv[1] = pattern;
+        }
 
         if (path) {
                 argv[argc++] = "--";
diff --git a/ui-plain.c b/ui-plain.c
index 66cb19c..da76406 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -10,8 +10,7 @@
 #include "html.h"
 #include "ui-shared.h"
 
-char *curr_rev;
-char *match_path;
+int match_baselen;
 int match;
 
 static void print_object(const unsigned char *sha1, const char *path)
@@ -53,17 +52,63 @@ static void print_object(const unsigned char *sha1, const char *path)
         match = 1;
 }
 
+static void print_dir(const unsigned char *sha1, const char *path,
+                      const char *base)
+{
+        char *fullpath;
+        if (path[0] || base[0])
+                fullpath = fmt("/%s%s/", base, path);
+        else
+                fullpath = "/";
+        ctx.page.etag = sha1_to_hex(sha1);
+        cgit_print_http_headers(&ctx);
+        htmlf("<html><head><title>%s</title></head>\n<body>\n"
+              " <h2>%s</h2>\n <ul>\n", fullpath, fullpath);
+        if (path[0] || base[0])
+              html("  <li><a href=\"../\">../</a></li>\n");
+        match = 2;
+}
+
+static void print_dir_entry(const unsigned char *sha1, const char *path,
+                            unsigned mode)
+{
+        const char *sep = "";
+        if (S_ISDIR(mode))
+                sep = "/";
+        htmlf("  <li><a href=\"%s%s\">%s%s</a></li>\n", path, sep, path, sep);
+        match = 2;
+}
+
+static void print_dir_tail(void)
+{
+        html(" </ul>\n</body></html>\n");
+}
+
 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                      const char *pathname, unsigned mode, int stage,
                      void *cbdata)
 {
-        if (S_ISDIR(mode))
+        if (baselen == match_baselen) {
+                if (S_ISREG(mode))
+                        print_object(sha1, pathname);
+                else if (S_ISDIR(mode)) {
+                        print_dir(sha1, pathname, base);
+                        return READ_TREE_RECURSIVE;
+                }
+        }
+        else if (baselen > match_baselen)
+                print_dir_entry(sha1, pathname, mode);
+        else if (S_ISDIR(mode))
                 return READ_TREE_RECURSIVE;
 
-        if (S_ISREG(mode) && !strncmp(base, match_path, baselen) &&
-            !strcmp(pathname, match_path + baselen))
-                print_object(sha1, pathname);
+        return 0;
+}
 
+static int basedir_len(const char *path)
+{
+        char *p = strrchr(path, '/');
+        if (p)
+                return p - path + 1;
         return 0;
 }
 
@@ -77,7 +122,6 @@ void cgit_print_plain(struct cgit_context *ctx)
         if (!rev)
                 rev = ctx->qry.head;
 
-        curr_rev = xstrdup(rev);
         if (get_sha1(rev, sha1)) {
                 html_status(404, "Not found", 0);
                 return;
@@ -87,8 +131,16 @@ void cgit_print_plain(struct cgit_context *ctx)
                 html_status(404, "Not found", 0);
                 return;
         }
-        match_path = ctx->qry.path;
+        if (!paths[0]) {
+                paths[0] = "";
+                match_baselen = -1;
+                print_dir(commit->tree->object.sha1, "", "");
+        }
+        else
+                match_baselen = basedir_len(paths[0]);
         read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
         if (!match)
                 html_status(404, "Not found", 0);
+        else if (match == 2)
+                print_dir_tail();
 }
diff --git a/ui-shared.c b/ui-shared.c
index f46c935..ae29615 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -840,6 +840,7 @@ void cgit_print_pageheader(struct cgit_context *ctx)
                 html_option("grep", "log msg", ctx->qry.grep);
                 html_option("author", "author", ctx->qry.grep);
                 html_option("committer", "committer", ctx->qry.grep);
+                html_option("range", "range", ctx->qry.grep);
                 html("</select>\n");
                 html("<input class='txt' type='text' size='10' name='q' value='");
                 html_attr(ctx->qry.search);