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Revision 55672a39b4e0f82e6f997879724ea37ca7e0d765 authored by Junio C Hamano on 09 May 2016, 18:36:09 UTC, committed by Junio C Hamano on 09 May 2016, 19:32:42 UTC 
test-lib-functions.sh: remove misleading comment on test_seq
 
We never used the "letters" form since we came up with "test_seq" to
replace use of non-portable "seq" in our test script, which we
introduced it at d17cf5f3 (tests: Introduce test_seq, 2012-08-04).

We use this helper to either iterate for N times (i.e. the values on
the lines do not even matter), or just to get N distinct strings
(i.e. the values on the lines themselves do not really matter, but
we care that they are different from each other and reproducible).

Stop promising that we may allow using "letters"; this would open an
easier reimplementation that does not rely on $PERL, if somebody
later wants to.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 7654286
Raw File
rerere.c 
#include "builtin.h"
#include "cache.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, fd, 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);
	}

	fd = setup_rerere(&merge_rr, flags);
	if (fd < 0)
		return 0;

	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"))
		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"))
		for (i = 0; i < merge_rr.nr; i++) {
			const char *path = merge_rr.items[i].string;
			const char *name = (const char *)merge_rr.items[i].util;
			if (diff_two(rerere_path(name, "preimage"), path, path, path))
				die("unable to generate diff for %s", name);
		}
	else
		usage_with_options(rerere_usage, options);

	string_list_clear(&merge_rr, 1);
	return 0;
}
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