зеркало из https://github.com/microsoft/git.git
127 строки
3.4 KiB
C
127 строки
3.4 KiB
C
/*
|
|
* Copyright (c) 2005 Junio C Hamano
|
|
*/
|
|
|
|
#include "cache.h"
|
|
#include "diff.h"
|
|
|
|
static int diff_output_format = DIFF_FORMAT_HUMAN;
|
|
static int detect_rename = 0;
|
|
static int find_copies_harder = 0;
|
|
static int diff_setup_opt = 0;
|
|
static int diff_score_opt = 0;
|
|
static const char *pickaxe = NULL;
|
|
static int pickaxe_opts = 0;
|
|
static int diff_break_opt = -1;
|
|
static const char *orderfile = NULL;
|
|
static const char *diff_filter = NULL;
|
|
|
|
static char *diff_stages_usage =
|
|
"git-diff-stages [-p] [-r] [-z] [-R] [-B] [-M] [-C] [--find-copies-harder] [-O<orderfile>] [-S<string>] [--pickaxe-all] <stage1> <stage2> [<path>...]";
|
|
|
|
static void diff_stages(int stage1, int stage2)
|
|
{
|
|
int i = 0;
|
|
while (i < active_nr) {
|
|
struct cache_entry *ce, *stages[4] = { NULL, };
|
|
struct cache_entry *one, *two;
|
|
const char *name;
|
|
int len;
|
|
ce = active_cache[i];
|
|
len = ce_namelen(ce);
|
|
name = ce->name;
|
|
for (;;) {
|
|
int stage = ce_stage(ce);
|
|
stages[stage] = ce;
|
|
if (active_nr <= ++i)
|
|
break;
|
|
ce = active_cache[i];
|
|
if (ce_namelen(ce) != len ||
|
|
memcmp(name, ce->name, len))
|
|
break;
|
|
}
|
|
one = stages[stage1];
|
|
two = stages[stage2];
|
|
if (!one && !two)
|
|
continue;
|
|
if (!one)
|
|
diff_addremove('+', ntohl(two->ce_mode),
|
|
two->sha1, name, NULL);
|
|
else if (!two)
|
|
diff_addremove('-', ntohl(one->ce_mode),
|
|
one->sha1, name, NULL);
|
|
else if (memcmp(one->sha1, two->sha1, 20) ||
|
|
(one->ce_mode != two->ce_mode) ||
|
|
find_copies_harder)
|
|
diff_change(ntohl(one->ce_mode), ntohl(two->ce_mode),
|
|
one->sha1, two->sha1, name, NULL);
|
|
}
|
|
}
|
|
|
|
int main(int ac, const char **av)
|
|
{
|
|
int stage1, stage2;
|
|
|
|
read_cache();
|
|
while (1 < ac && av[1][0] == '-') {
|
|
const char *arg = av[1];
|
|
if (!strcmp(arg, "-r"))
|
|
; /* as usual */
|
|
else if (!strcmp(arg, "-p"))
|
|
diff_output_format = DIFF_FORMAT_PATCH;
|
|
else if (!strncmp(arg, "-B", 2)) {
|
|
if ((diff_break_opt = diff_scoreopt_parse(arg)) == -1)
|
|
usage(diff_stages_usage);
|
|
}
|
|
else if (!strncmp(arg, "-M", 2)) {
|
|
detect_rename = DIFF_DETECT_RENAME;
|
|
if ((diff_score_opt = diff_scoreopt_parse(arg)) == -1)
|
|
usage(diff_stages_usage);
|
|
}
|
|
else if (!strncmp(arg, "-C", 2)) {
|
|
detect_rename = DIFF_DETECT_COPY;
|
|
if ((diff_score_opt = diff_scoreopt_parse(arg)) == -1)
|
|
usage(diff_stages_usage);
|
|
}
|
|
else if (!strcmp(arg, "--find-copies-harder"))
|
|
find_copies_harder = 1;
|
|
else if (!strcmp(arg, "-z"))
|
|
diff_output_format = DIFF_FORMAT_MACHINE;
|
|
else if (!strcmp(arg, "-R"))
|
|
diff_setup_opt |= DIFF_SETUP_REVERSE;
|
|
else if (!strncmp(arg, "-S", 2))
|
|
pickaxe = arg + 2;
|
|
else if (!strncmp(arg, "-O", 2))
|
|
orderfile = arg + 2;
|
|
else if (!strncmp(arg, "--diff-filter=", 14))
|
|
diff_filter = arg + 14;
|
|
else if (!strcmp(arg, "--pickaxe-all"))
|
|
pickaxe_opts = DIFF_PICKAXE_ALL;
|
|
else
|
|
usage(diff_stages_usage);
|
|
ac--; av++;
|
|
}
|
|
|
|
if (ac < 3 ||
|
|
sscanf(av[1], "%d", &stage1) != 1 ||
|
|
! (0 <= stage1 && stage1 <= 3) ||
|
|
sscanf(av[2], "%d", &stage2) != 1 ||
|
|
! (0 <= stage2 && stage2 <= 3) ||
|
|
(find_copies_harder && detect_rename != DIFF_DETECT_COPY))
|
|
usage(diff_stages_usage);
|
|
|
|
av += 3; /* The rest from av[0] are for paths restriction. */
|
|
diff_setup(diff_setup_opt);
|
|
|
|
diff_stages(stage1, stage2);
|
|
|
|
diffcore_std(av,
|
|
detect_rename, diff_score_opt,
|
|
pickaxe, pickaxe_opts,
|
|
diff_break_opt,
|
|
orderfile,
|
|
diff_filter);
|
|
diff_flush(diff_output_format);
|
|
return 0;
|
|
}
|