+ /* Check if the readme is tracked in the git repo. */
+ colon = strchr(ctx.repo->readme, ':');
+ if (colon && strlen(colon) > 1) {
+ *colon = '\0';
+ ref = ctx.repo->readme;
+ ctx.repo->readme = colon + 1;
+ if (!(*ctx.repo->readme))
+ return;
+ }
+
+ /* Prepend repo path to relative readme path unless tracked. */
+ if (!ref && *ctx.repo->readme != '/')
+ ctx.repo->readme = fmtalloc("%s/%s", ctx.repo->path,
+ ctx.repo->readme);
+
+ /* If a subpath is specified for the about page, make it relative
+ * to the directory containing the configured readme.
+ */
+ if (path) {
+ slash = strrchr(ctx.repo->readme, '/');
+ if (!slash) {
+ if (!colon)
+ return;
+ slash = colon;
+ }
+ 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;
+
+ /* Print the calculated readme, either from the git repo or from the
+ * filesystem, while applying the about-filter.
+ */