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
@@ -39,7 +39,7 @@ static void atom_fn(struct cgit_context *ctx)
 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();
 }
diff --git a/ui-summary.c b/ui-summary.c
index ede4a62..f2a9b46 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -66,11 +66,23 @@ void cgit_print_summary()
         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
@@ -2,6 +2,6 @@
 #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 */