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tag: v1.5.6.5
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128 lines (114 sloc) 2.482 kb
#include "cache.h"
#include "run-command.h"
static const char *pgm;
static const char *arguments[9];
static int one_shot, quiet;
static int err;
static void run_program(void)
{
struct child_process child;
memset(&child, 0, sizeof(child));
child.argv = arguments;
if (run_command(&child)) {
if (one_shot) {
err++;
} else {
if (!quiet)
die("merge program failed");
exit(1);
}
}
}
static int merge_entry(int pos, const char *path)
{
int found;
if (pos >= active_nr)
die("git-merge-index: %s not in the cache", path);
arguments[0] = pgm;
arguments[1] = "";
arguments[2] = "";
arguments[3] = "";
arguments[4] = path;
arguments[5] = "";
arguments[6] = "";
arguments[7] = "";
arguments[8] = NULL;
found = 0;
do {
static char hexbuf[4][60];
static char ownbuf[4][60];
struct cache_entry *ce = active_cache[pos];
int stage = ce_stage(ce);
if (strcmp(ce->name, path))
break;
found++;
strcpy(hexbuf[stage], sha1_to_hex(ce->sha1));
sprintf(ownbuf[stage], "%o", ce->ce_mode);
arguments[stage] = hexbuf[stage];
arguments[stage + 4] = ownbuf[stage];
} while (++pos < active_nr);
if (!found)
die("git-merge-index: %s not in the cache", path);
run_program();
return found;
}
static void merge_file(const char *path)
{
int pos = cache_name_pos(path, strlen(path));
/*
* If it already exists in the cache as stage0, it's
* already merged and there is nothing to do.
*/
if (pos < 0)
merge_entry(-pos-1, path);
}
static void merge_all(void)
{
int i;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!ce_stage(ce))
continue;
i += merge_entry(i, ce->name)-1;
}
}
int main(int argc, char **argv)
{
int i, force_file = 0;
/* Without this we cannot rely on waitpid() to tell
* what happened to our children.
*/
signal(SIGCHLD, SIG_DFL);
if (argc < 3)
usage("git-merge-index [-o] [-q] <merge-program> (-a | [--] <filename>*)");
setup_git_directory();
read_cache();
i = 1;
if (!strcmp(argv[i], "-o")) {
one_shot = 1;
i++;
}
if (!strcmp(argv[i], "-q")) {
quiet = 1;
i++;
}
pgm = argv[i++];
for (; i < argc; i++) {
char *arg = argv[i];
if (!force_file && *arg == '-') {
if (!strcmp(arg, "--")) {
force_file = 1;
continue;
}
if (!strcmp(arg, "-a")) {
merge_all();
continue;
}
die("git-merge-index: unknown option %s", arg);
}
merge_file(arg);
}
if (err && !quiet)
die("merge program failed");
return err;
}
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