1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-06-03 01:46:11 +02:00
git/merge-cache.c
Petr Baudis 8c59926f5e Make merge-cache not fail immediatelly when the merge program
fails, but go on and return error code at the end. It makes sense
to try to merge everything, then let the user solve the commits
at once.
2005-05-07 16:09:44 +02:00

119 lines
2.3 KiB
C

#include <sys/types.h>
#include <sys/wait.h>
#include "cache.h"
static const char *pgm = NULL;
static const char *arguments[8];
static int err;
static void run_program(void)
{
int pid = fork(), status;
if (pid < 0)
die("unable to fork");
if (!pid) {
execlp(pgm, arguments[0],
arguments[1],
arguments[2],
arguments[3],
arguments[4],
arguments[5],
arguments[6],
arguments[7],
NULL);
die("unable to execute '%s'", pgm);
}
if (waitpid(pid, &status, 0) < 0 || !WIFEXITED(status) || WEXITSTATUS(status))
err++;
}
static int merge_entry(int pos, const char *path)
{
int found;
if (pos >= active_nr)
die("merge-cache: %s not in the cache", path);
arguments[0] = pgm;
arguments[1] = "";
arguments[2] = "";
arguments[3] = "";
arguments[4] = path;
arguments[5] = "";
arguments[6] = "";
arguments[7] = "";
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", ntohl(ce->ce_mode) & (~S_IFMT));
arguments[stage] = hexbuf[stage];
arguments[stage + 4] = ownbuf[stage];
} while (++pos < active_nr);
if (!found)
die("merge-cache: %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;
if (argc < 3)
usage("merge-cache <merge-program> (-a | <filename>*)");
read_cache();
pgm = argv[1];
for (i = 2; 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("merge-cache: unknown option %s", arg);
}
merge_file(arg);
}
if (err)
die("merge program failed");
return 0;
}