ui-summary: enable arbitrary paths below repo.readme

This change makes it possible to include any number of pages below
the 'about' tab for a repository. The path is assumed to be located
in the same directory as the 'repo.readme' file.

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

3 files changed, 20 insertions, 8 deletions

diff --git a/cmd.c b/cmd.c
index cf97da7..766f903 100644
--- a/cmd.c
+++ b/cmd.c
@@ -1,138 +1,138 @@
 /* cmd.c: the cgit command dispatcher
  *
  * Copyright (C) 2008 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include "cmd.h"
 #include "cache.h"
 #include "ui-shared.h"
 #include "ui-atom.h"
 #include "ui-blob.h"
 #include "ui-clone.h"
 #include "ui-commit.h"
 #include "ui-diff.h"
 #include "ui-log.h"
 #include "ui-patch.h"
 #include "ui-plain.h"
 #include "ui-refs.h"
 #include "ui-repolist.h"
 #include "ui-snapshot.h"
 #include "ui-stats.h"
 #include "ui-summary.h"
 #include "ui-tag.h"
 #include "ui-tree.h"
 
 static void HEAD_fn(struct cgit_context *ctx)
 {
         cgit_clone_head(ctx);
 }
 
 static void atom_fn(struct cgit_context *ctx)
 {
         cgit_print_atom(ctx->qry.head, ctx->qry.path, 10);
 }
 
 static void about_fn(struct cgit_context *ctx)
 {
         if (ctx->repo)
-                cgit_print_repo_readme();
+                cgit_print_repo_readme(ctx->qry.path);
         else
                 cgit_print_site_readme();
 }
 
 static void blob_fn(struct cgit_context *ctx)
 {
         cgit_print_blob(ctx->qry.sha1, ctx->qry.path, ctx->qry.head);
 }
 
 static void commit_fn(struct cgit_context *ctx)
 {
         cgit_print_commit(ctx->qry.sha1);
 }
 
 static void diff_fn(struct cgit_context *ctx)
 {
         cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
 }
 
 static void info_fn(struct cgit_context *ctx)
 {
         cgit_clone_info(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);
 }
 
 static void ls_cache_fn(struct cgit_context *ctx)
 {
         ctx->page.mimetype = "text/plain";
         ctx->page.filename = "ls-cache.txt";
         cgit_print_http_headers(ctx);
         cache_ls(ctx->cfg.cache_root);
 }
 
 static void objects_fn(struct cgit_context *ctx)
 {
         cgit_clone_objects(ctx);
 }
 
 static void repolist_fn(struct cgit_context *ctx)
 {
         cgit_print_repolist();
 }
 
 static void patch_fn(struct cgit_context *ctx)
 {
         cgit_print_patch(ctx->qry.sha1);
 }
 
 static void plain_fn(struct cgit_context *ctx)
 {
         cgit_print_plain(ctx);
 }
 
 static void refs_fn(struct cgit_context *ctx)
 {
         cgit_print_refs();
 }
 
 static void snapshot_fn(struct cgit_context *ctx)
 {
         cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1, ctx->qry.path,
                             ctx->repo->snapshots, ctx->qry.nohead);
 }
 
 static void stats_fn(struct cgit_context *ctx)
 {
         cgit_show_stats(ctx);
 }
 
 static void summary_fn(struct cgit_context *ctx)
 {
         cgit_print_summary();
 }
 
 static void tag_fn(struct cgit_context *ctx)
 {
         cgit_print_tag(ctx->qry.sha1);
 }
 
 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}
 
 struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
 {
         static struct cgit_cmd cmds[] = {
                 def_cmd(HEAD, 1, 0),
diff --git a/ui-summary.c b/ui-summary.c
index ede4a62..f2a9b46 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -1,76 +1,88 @@
 /* ui-summary.c: functions for generating repo summary page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-log.h"
 #include "ui-refs.h"
 
 int urls = 0;
 
 static void print_url(char *base, char *suffix)
 {
         if (!base || !*base)
                 return;
         if (urls++ == 0) {
                 html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
                 html("<tr><th class='left' colspan='4'>Clone</th></tr>\n");
         }
         if (suffix && *suffix)
                 base = fmt("%s/%s", base, suffix);
         html("<tr><td colspan='4'><a href='");
         html_url_path(base);
         html("'>");
         html_txt(base);
         html("</a></td></tr>\n");
 }
 
 static void print_urls(char *txt, char *suffix)
 {
         char *h = txt, *t, c;
 
         while (h && *h) {
                 while (h && *h == ' ')
                         h++;
                 t = h;
                 while (t && *t && *t != ' ')
                         t++;
                 c = *t;
                 *t = 0;
                 print_url(h, suffix);
                 *t = c;
                 h = t;
         }
 }
 
 void cgit_print_summary()
 {
         html("<table summary='repository info' class='list nowrap'>");
         cgit_print_branches(ctx.cfg.summary_branches);
         html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
         cgit_print_tags(ctx.cfg.summary_tags);
         if (ctx.cfg.summary_log > 0) {
                 html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
                 cgit_print_log(ctx.qry.head, 0, ctx.cfg.summary_log, NULL,
                                NULL, NULL, 0);
         }
         if (ctx.repo->clone_url)
                 print_urls(ctx.repo->clone_url, NULL);
         else if (ctx.cfg.clone_prefix)
                 print_urls(ctx.cfg.clone_prefix, ctx.repo->url);
         html("</table>");
 }
 
-void cgit_print_repo_readme()
+void cgit_print_repo_readme(char *path)
 {
-        if (ctx.repo->readme) {
-                html("<div id='summary'>");
-                html_include(ctx.repo->readme);
-                html("</div>");
-        }
+        char *slash, *tmp;
+
+        if (!ctx.repo->readme)
+                return;
+
+        if (path) {
+                slash = strrchr(ctx.repo->readme, '/');
+                if (!slash)
+                        return;
+                tmp = xmalloc(slash - ctx.repo->readme + 1 + strlen(path) + 1);
+                strncpy(tmp, ctx.repo->readme, slash - ctx.repo->readme + 1);
+                strcpy(tmp + (slash - ctx.repo->readme + 1), path);
+        } else
+                tmp = ctx.repo->readme;
+        html("<div id='summary'>");
+        html_include(tmp);
+        html("</div>");
 }
diff --git a/ui-summary.h b/ui-summary.h
index 3e13039..c01f560 100644
--- a/ui-summary.h
+++ b/ui-summary.h
@@ -1,7 +1,7 @@
 #ifndef UI_SUMMARY_H
 #define UI_SUMMARY_H
 
 extern void cgit_print_summary();
-extern void cgit_print_repo_readme();
+extern void cgit_print_repo_readme(char *path);
 
 #endif /* UI_SUMMARY_H */