Add support for snapshots

Make a link from the commit viewer to a snapshot of the corresponding tree.

Currently only zip-format is supported.

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

1 files changed, 32 insertions, 7 deletions

diff --git a/cgit.c b/cgit.c
index 0fa203c..2795ecc 100644
--- a/cgit.c
+++ b/cgit.c
@@ -80,2 +80,9 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	setenv("GIT_DIR", cgit_repo->path, 1);
+
+	if (cgit_query_page && !strcmp(cgit_query_page, "snapshot")) {
+		cgit_print_snapshot(item, cgit_query_sha1, "zip", 
+				    cgit_repo->url, cgit_query_name);
+		return;
+	}
+
 	if (cgit_query_page && !strcmp(cgit_query_page, "log"))
@@ -87,3 +94,4 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	} else if (!strcmp(cgit_query_page, "log")) {
-		cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
+		cgit_print_log(cgit_query_head, cgit_query_ofs, 100, 
+			       cgit_query_search);
 	} else if (!strcmp(cgit_query_page, "tree")) {
@@ -96,2 +104,4 @@ static void cgit_print_repo_page(struct cacheitem *item)
 		cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
+	} else {
+		cgit_print_error("Invalid request");
 	}
@@ -100,9 +110,17 @@ static void cgit_print_repo_page(struct cacheitem *item)
 
-static void cgit_fill_cache(struct cacheitem *item)
+static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 {
 	static char buf[PATH_MAX];
+	int stdout2;
 
 	getcwd(buf, sizeof(buf));
-	htmlfd = item->fd;
 	item->st.st_mtime = time(NULL);
+
+	if (use_cache) {
+		stdout2 = chk_positive(dup(STDOUT_FILENO), 
+				       "Preserving STDOUT");
+		chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
+		chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
+	}
+
 	if (cgit_query_repo)
@@ -111,2 +129,10 @@ static void cgit_fill_cache(struct cacheitem *item)
 		cgit_print_repolist(item);
+
+	if (use_cache) {
+		chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
+		chk_positive(dup2(stdout2, STDOUT_FILENO), 
+			     "Restoring original STDOUT");
+		chk_zero(close(stdout2), "Closing temporary STDOUT");
+	}
+
 	chdir(buf);
@@ -129,3 +155,3 @@ static void cgit_check_cache(struct cacheitem *item)
 		if (!cache_exist(item)) {
-			cgit_fill_cache(item);
+			cgit_fill_cache(item, 1);
 			cache_unlock(item);
@@ -136,3 +162,3 @@ static void cgit_check_cache(struct cacheitem *item)
 		if (cache_expired(item)) {
-			cgit_fill_cache(item);
+			cgit_fill_cache(item, 1);
 			cache_unlock(item);
@@ -211,4 +237,3 @@ int main(int argc, const char **argv)
 	if (cgit_nocache) {
-		item.fd = STDOUT_FILENO;
-		cgit_fill_cache(&item);
+		cgit_fill_cache(&item, 0);
 	} else {