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#include "builtin.h"
#include "cache.h"
#include "config.h"
#include "dir.h"
#include "parse-options.h"
#include "string-list.h"
#include "rerere.h"
#include "xdiff/xdiff.h"
#include "xdiff-interface.h"
#include "pathspec.h"
static const char * const rerere_usage[] = {
N_("git rerere [clear | forget <path>... | status | remaining | diff | gc]"),
NULL,
};
static int outf(void *dummy, mmbuffer_t *ptr, int nbuf)
{
int i;
for (i = 0; i < nbuf; i++)
if (write_in_full(1, ptr[i].ptr, ptr[i].size) != ptr[i].size)
return -1;
return 0;
}
static int diff_two(const char *file1, const char *label1,
const char *file2, const char *label2)
{
xpparam_t xpp;
xdemitconf_t xecfg;
xdemitcb_t ecb;
mmfile_t minus, plus;
int ret;
if (read_mmfile(&minus, file1) || read_mmfile(&plus, file2))
return -1;
printf("--- a/%s\n+++ b/%s\n", label1, label2);
fflush(stdout);
memset(&xpp, 0, sizeof(xpp));
xpp.flags = 0;
memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = 3;
ecb.outf = outf;
ret = xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb);
free(minus.ptr);
free(plus.ptr);
return ret;
}
int cmd_rerere(int argc, const char **argv, const char *prefix)
{
struct string_list merge_rr = STRING_LIST_INIT_DUP;
int i, autoupdate = -1, flags = 0;
struct option options[] = {
OPT_SET_INT(0, "rerere-autoupdate", &autoupdate,
N_("register clean resolutions in index"), 1),
OPT_END(),
};
argc = parse_options(argc, argv, prefix, options, rerere_usage, 0);
git_config(git_xmerge_config, NULL);
if (autoupdate == 1)
flags = RERERE_AUTOUPDATE;
if (autoupdate == 0)
flags = RERERE_NOAUTOUPDATE;
if (argc < 1)
return rerere(flags);
if (!strcmp(argv[0], "forget")) {
struct pathspec pathspec;
if (argc < 2)
warning("'git rerere forget' without paths is deprecated");
parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD,
prefix, argv + 1);
return rerere_forget(&pathspec);
}
if (!strcmp(argv[0], "clear")) {
rerere_clear(&merge_rr);
} else if (!strcmp(argv[0], "gc"))
rerere_gc(&merge_rr);
else if (!strcmp(argv[0], "status")) {
if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
return 0;
for (i = 0; i < merge_rr.nr; i++)
printf("%s\n", merge_rr.items[i].string);
} else if (!strcmp(argv[0], "remaining")) {
rerere_remaining(&merge_rr);
for (i = 0; i < merge_rr.nr; i++) {
if (merge_rr.items[i].util != RERERE_RESOLVED)
printf("%s\n", merge_rr.items[i].string);
else
/* prepare for later call to
* string_list_clear() */
merge_rr.items[i].util = NULL;
}
} else if (!strcmp(argv[0], "diff")) {
if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
return 0;
for (i = 0; i < merge_rr.nr; i++) {
const char *path = merge_rr.items[i].string;
const struct rerere_id *id = merge_rr.items[i].util;
if (diff_two(rerere_path(id, "preimage"), path, path, path))
die("unable to generate diff for %s", rerere_path(id, NULL));
}
} else
usage_with_options(rerere_usage, options);
string_list_clear(&merge_rr, 1);
return 0;
}
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