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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2016-04-13 13:22:42 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-04-15 17:12:19 (GMT)
commite6e7530d10b74d763b4311ea93e0a831b810d6c2 (patch)
tree7ac83d3fecd39d6076f24eaddd6719a24c3b6ce8 /t/helper/test-delta.c
parent7897d84b8240720352e23030c35db461581b68e3 (diff)
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test helpers: move test-* to t/helper/ subdirectory
This keeps top dir a bit less crowded. And because these programs are for testing purposes, it makes sense that they stay somewhere in t/ Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/helper/test-delta.c')
-rw-r--r--t/helper/test-delta.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/t/helper/test-delta.c b/t/helper/test-delta.c
new file mode 100644
index 0000000..4595cd6
--- /dev/null
+++ b/t/helper/test-delta.c
@@ -0,0 +1,78 @@
+/*
+ * test-delta.c: test code to exercise diff-delta.c and patch-delta.c
+ *
+ * (C) 2005 Nicolas Pitre <nico@fluxnic.net>
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "git-compat-util.h"
+#include "delta.h"
+#include "cache.h"
+
+static const char usage_str[] =
+ "test-delta (-d|-p) <from_file> <data_file> <out_file>";
+
+int main(int argc, char *argv[])
+{
+ int fd;
+ struct stat st;
+ void *from_buf, *data_buf, *out_buf;
+ unsigned long from_size, data_size, out_size;
+
+ if (argc != 5 || (strcmp(argv[1], "-d") && strcmp(argv[1], "-p"))) {
+ fprintf(stderr, "usage: %s\n", usage_str);
+ return 1;
+ }
+
+ fd = open(argv[2], O_RDONLY);
+ if (fd < 0 || fstat(fd, &st)) {
+ perror(argv[2]);
+ return 1;
+ }
+ from_size = st.st_size;
+ from_buf = mmap(NULL, from_size, PROT_READ, MAP_PRIVATE, fd, 0);
+ if (from_buf == MAP_FAILED) {
+ perror(argv[2]);
+ close(fd);
+ return 1;
+ }
+ close(fd);
+
+ fd = open(argv[3], O_RDONLY);
+ if (fd < 0 || fstat(fd, &st)) {
+ perror(argv[3]);
+ return 1;
+ }
+ data_size = st.st_size;
+ data_buf = mmap(NULL, data_size, PROT_READ, MAP_PRIVATE, fd, 0);
+ if (data_buf == MAP_FAILED) {
+ perror(argv[3]);
+ close(fd);
+ return 1;
+ }
+ close(fd);
+
+ if (argv[1][1] == 'd')
+ out_buf = diff_delta(from_buf, from_size,
+ data_buf, data_size,
+ &out_size, 0);
+ else
+ out_buf = patch_delta(from_buf, from_size,
+ data_buf, data_size,
+ &out_size);
+ if (!out_buf) {
+ fprintf(stderr, "delta operation failed (returned NULL)\n");
+ return 1;
+ }
+
+ fd = open (argv[4], O_WRONLY|O_CREAT|O_TRUNC, 0666);
+ if (fd < 0 || write_in_full(fd, out_buf, out_size) != out_size) {
+ perror(argv[4]);
+ return 1;
+ }
+
+ return 0;
+}