Add atom-support

This enables a page which generates atom feeds for the current branch and
path, heavily inspired by the atom-support in gitweb.

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

1 files changed, 129 insertions, 0 deletions

diff --git a/ui-atom.c b/ui-atom.c
new file mode 100644
index 0000000..a6ea3ee
--- /dev/null
+++ b/ui-atom.c
@@ -0,0 +1,129 @@
+/* ui-atom.c: functions for atom feeds
+ *
+ * Copyright (C) 2008 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
+#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
+
+void add_entry(struct commit *commit, char *host)
+{
+	char delim = '&';
+	char *hex;
+	char *mail, *t, *t2;
+	struct commitinfo *info;
+
+	info = cgit_parse_commit(commit);
+	hex = sha1_to_hex(commit->object.sha1);
+	html("<entry>\n");
+	html("<title>");
+	html_txt(info->subject);
+	html("</title>\n");
+	html("<updated>");
+	cgit_print_date(info->author_date, FMT_ATOMDATE, ctx.cfg.local_time);
+	html("</updated>\n");
+	html("<author>\n");
+	if (info->author) {
+		html("<name>");
+		html_txt(info->author);
+		html("</name>\n");
+	}
+	if (info->author_email) {
+		mail = xstrdup(info->author_email);
+		t = strchr(mail, '<');
+		if (t)
+			t++;
+		else
+			t = mail;
+		t2 = strchr(t, '>');
+		if (t2)
+			*t2 = '\0';
+		html("<email>");
+		html_txt(t);
+		html("</email>\n");
+		free(mail);
+	}
+	html("</author>\n");
+	html("<published>");
+	cgit_print_date(info->author_date, FMT_ATOMDATE, ctx.cfg.local_time);
+	html("</published>\n");
+	if (host) {
+		html("<link rel='alternate' type='text/html' href='http://");
+		html_attr(host);
+		html_attr(cgit_pageurl(ctx.repo->url, "commit", NULL));
+		if (ctx.cfg.virtual_root)
+			delim = '?';
+		htmlf("%cid=%s", delim, hex);
+		html("'/>\n");
+	}
+	htmlf("<id>%s</id>\n", hex);
+	html("<content type='text'>\n");
+	html_txt(info->msg);
+	html("</content>\n");
+	html("<content type='xhtml'>\n");
+	html("<div xmlns='http://www.w3.org/1999/xhtml'>\n");
+	html("<pre>\n");
+	html_txt(info->msg);
+	html("</pre>\n");
+	html("</div>\n");
+	html("</content>\n");
+	html("</entry>\n");
+	cgit_free_commitinfo(info);
+}
+
+
+void cgit_print_atom(char *tip, char *path, int max_count)
+{
+	char *host;
+	const char *argv[] = {NULL, tip, NULL, NULL, NULL};
+	struct commit *commit;
+	struct rev_info rev;
+	int argc = 2;
+
+	if (!tip)
+		argv[1] = ctx.qry.head;
+
+	if (path) {
+		argv[argc++] = "--";
+		argv[argc++] = path;
+	}
+
+	init_revisions(&rev, NULL);
+	rev.abbrev = DEFAULT_ABBREV;
+	rev.commit_format = CMIT_FMT_DEFAULT;
+	rev.verbose_header = 1;
+	rev.show_root_diff = 0;
+	rev.max_count = max_count;
+	setup_revisions(argc, argv, &rev, NULL);
+	prepare_revision_walk(&rev);
+
+	host = cgit_hosturl();
+	ctx.page.mimetype = "text/xml";
+	ctx.page.charset = "utf-8";
+	cgit_print_http_headers(&ctx);
+	html("<feed xmlns='http://www.w3.org/2005/Atom'>\n");
+	html("<title>");
+	html_txt(ctx.repo->name);
+	html("</title>\n");
+	html("<subtitle>");
+	html_txt(ctx.repo->desc);
+	html("</subtitle>\n");
+	if (host) {
+		html("<link rel='alternate' type='text/html' href='http://");
+		html_attr(host);
+		html_attr(cgit_repourl(ctx.repo->url));
+		html("'/>\n");
+	}
+	while ((commit = get_revision(&rev)) != NULL) {
+		add_entry(commit, host);
+		free(commit->buffer);
+		commit->buffer = NULL;
+		free_commit_list(commit->parents);
+		commit->parents = NULL;
+	}
+	html("</feed>\n");
+}