https://github.com/git/git
* jl/submodule-status-failure-report: diff/status: print submodule path when looking for changes fails
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- v2.9.4
- v2.9.3
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- v2.9.1
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Merge branch 'jl/submodule-status-failure-report' into maint
/*
* 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;
}
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