00f8f97d30
So far we have only needed to be able to pass an option that is generic to xdiff family of functions to this function. Extend the interface so that we can give it merge specific parameters. Signed-off-by: Junio C Hamano <gitster@pobox.com>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
#include "builtin.h"
|
|
#include "cache.h"
|
|
#include "xdiff/xdiff.h"
|
|
#include "xdiff-interface.h"
|
|
#include "parse-options.h"
|
|
|
|
static const char *const merge_file_usage[] = {
|
|
"git merge-file [options] [-L name1 [-L orig [-L name2]]] file1 orig_file file2",
|
|
NULL
|
|
};
|
|
|
|
static int label_cb(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
static int label_count = 0;
|
|
const char **names = (const char **)opt->value;
|
|
|
|
if (label_count >= 3)
|
|
return error("too many labels on the command line");
|
|
names[label_count++] = arg;
|
|
return 0;
|
|
}
|
|
|
|
int cmd_merge_file(int argc, const char **argv, const char *prefix)
|
|
{
|
|
const char *names[3] = { NULL, NULL, NULL };
|
|
mmfile_t mmfs[3];
|
|
mmbuffer_t result = {NULL, 0};
|
|
xmparam_t xmp = {{XDF_NEED_MINIMAL}};
|
|
int ret = 0, i = 0, to_stdout = 0;
|
|
int merge_level = XDL_MERGE_ZEALOUS_ALNUM;
|
|
int merge_style = 0, quiet = 0;
|
|
int nongit;
|
|
|
|
struct option options[] = {
|
|
OPT_BOOLEAN('p', "stdout", &to_stdout, "send results to standard output"),
|
|
OPT_SET_INT(0, "diff3", &merge_style, "use a diff3 based merge", XDL_MERGE_DIFF3),
|
|
OPT__QUIET(&quiet),
|
|
OPT_CALLBACK('L', NULL, names, "name",
|
|
"set labels for file1/orig_file/file2", &label_cb),
|
|
OPT_END(),
|
|
};
|
|
|
|
prefix = setup_git_directory_gently(&nongit);
|
|
if (!nongit) {
|
|
/* Read the configuration file */
|
|
git_config(git_xmerge_config, NULL);
|
|
if (0 <= git_xmerge_style)
|
|
merge_style = git_xmerge_style;
|
|
}
|
|
|
|
argc = parse_options(argc, argv, prefix, options, merge_file_usage, 0);
|
|
if (argc != 3)
|
|
usage_with_options(merge_file_usage, options);
|
|
if (quiet) {
|
|
if (!freopen("/dev/null", "w", stderr))
|
|
return error("failed to redirect stderr to /dev/null: "
|
|
"%s\n", strerror(errno));
|
|
}
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
if (!names[i])
|
|
names[i] = argv[i];
|
|
if (read_mmfile(mmfs + i, argv[i]))
|
|
return -1;
|
|
if (buffer_is_binary(mmfs[i].ptr, mmfs[i].size))
|
|
return error("Cannot merge binary files: %s\n",
|
|
argv[i]);
|
|
}
|
|
|
|
ret = xdl_merge(mmfs + 1, mmfs + 0, names[0], mmfs + 2, names[2],
|
|
&xmp, merge_level | merge_style, &result);
|
|
|
|
for (i = 0; i < 3; i++)
|
|
free(mmfs[i].ptr);
|
|
|
|
if (ret >= 0) {
|
|
const char *filename = argv[0];
|
|
FILE *f = to_stdout ? stdout : fopen(filename, "wb");
|
|
|
|
if (!f)
|
|
ret = error("Could not open %s for writing", filename);
|
|
else if (result.size &&
|
|
fwrite(result.ptr, result.size, 1, f) != 1)
|
|
ret = error("Could not write to %s", filename);
|
|
else if (fclose(f))
|
|
ret = error("Could not close %s", filename);
|
|
free(result.ptr);
|
|
}
|
|
|
|
return ret;
|
|
}
|