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/*
* "git push"
*/
#include "cache.h"
#include "refs.h"
#include "run-command.h"
#include "builtin.h"
#include "remote.h"
static const char push_usage[] = "git-push [--all] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
static int all, tags, force, thin = 1, verbose;
static const char *receivepack;
static const char **refspec;
static int refspec_nr;
static void add_refspec(const char *ref)
{
int nr = refspec_nr + 1;
refspec = xrealloc(refspec, nr * sizeof(char *));
refspec[nr-1] = ref;
refspec_nr = nr;
}
static int expand_one_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
{
/* Ignore the "refs/" at the beginning of the refname */
ref += 5;
if (!prefixcmp(ref, "tags/"))
add_refspec(xstrdup(ref));
return 0;
}
static void expand_refspecs(void)
{
if (all) {
if (refspec_nr)
die("cannot mix '--all' and a refspec");
/*
* No need to expand "--all" - we'll just use
* the "--all" flag to send-pack
*/
return;
}
if (!tags)
return;
for_each_ref(expand_one_ref, NULL);
}
struct wildcard_cb {
const char *from_prefix;
int from_prefix_len;
const char *to_prefix;
int to_prefix_len;
int force;
};
static int expand_wildcard_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
{
struct wildcard_cb *cb = cb_data;
int len = strlen(ref);
char *expanded, *newref;
if (len < cb->from_prefix_len ||
memcmp(cb->from_prefix, ref, cb->from_prefix_len))
return 0;
expanded = xmalloc(len * 2 + cb->force +
(cb->to_prefix_len - cb->from_prefix_len) + 2);
newref = expanded + cb->force;
if (cb->force)
expanded[0] = '+';
memcpy(newref, ref, len);
newref[len] = ':';
memcpy(newref + len + 1, cb->to_prefix, cb->to_prefix_len);
strcpy(newref + len + 1 + cb->to_prefix_len,
ref + cb->from_prefix_len);
add_refspec(expanded);
return 0;
}
static int wildcard_ref(const char *ref)
{
int len;
const char *colon;
struct wildcard_cb cb;
memset(&cb, 0, sizeof(cb));
if (ref[0] == '+') {
cb.force = 1;
ref++;
}
len = strlen(ref);
colon = strchr(ref, ':');
if (! (colon && ref < colon &&
colon[-2] == '/' && colon[-1] == '*' &&
/* "<mine>/<asterisk>:<yours>/<asterisk>" is at least 7 bytes */
7 <= len &&
ref[len-2] == '/' && ref[len-1] == '*') )
return 0 ;
cb.from_prefix = ref;
cb.from_prefix_len = colon - ref - 1;
cb.to_prefix = colon + 1;
cb.to_prefix_len = len - (colon - ref) - 2;
for_each_ref(expand_wildcard_ref, &cb);
return 1;
}
static void set_refspecs(const char **refs, int nr)
{
if (nr) {
int i;
for (i = 0; i < nr; i++) {
const char *ref = refs[i];
if (!strcmp("tag", ref)) {
char *tag;
int len;
if (nr <= ++i)
die("tag shorthand without <tag>");
len = strlen(refs[i]) + 11;
tag = xmalloc(len);
strcpy(tag, "refs/tags/");
strcat(tag, refs[i]);
ref = tag;
}
else if (wildcard_ref(ref))
continue;
add_refspec(ref);
}
}
expand_refspecs();
}
static int do_push(const char *repo)
{
int i, errs;
int common_argc;
const char **argv;
int argc;
struct remote *remote = remote_get(repo);
if (!remote)
die("bad repository '%s'", repo);
if (remote->receivepack) {
char *rp = xmalloc(strlen(remote->receivepack) + 16);
sprintf(rp, "--receive-pack=%s", remote->receivepack);
receivepack = rp;
}
if (!refspec && !all && !tags && remote->push_refspec_nr) {
for (i = 0; i < remote->push_refspec_nr; i++) {
if (!wildcard_ref(remote->push_refspec[i]))
add_refspec(remote->push_refspec[i]);
}
}
argv = xmalloc((refspec_nr + 10) * sizeof(char *));
argv[0] = "dummy-send-pack";
argc = 1;
if (all)
argv[argc++] = "--all";
if (force)
argv[argc++] = "--force";
if (receivepack)
argv[argc++] = receivepack;
common_argc = argc;
errs = 0;
for (i = 0; i < remote->uri_nr; i++) {
int err;
int dest_argc = common_argc;
int dest_refspec_nr = refspec_nr;
const char **dest_refspec = refspec;
const char *dest = remote->uri[i];
const char *sender = "send-pack";
if (!prefixcmp(dest, "http://") ||
!prefixcmp(dest, "https://"))
sender = "http-push";
else if (thin)
argv[dest_argc++] = "--thin";
argv[0] = sender;
argv[dest_argc++] = dest;
while (dest_refspec_nr--)
argv[dest_argc++] = *dest_refspec++;
argv[dest_argc] = NULL;
if (verbose)
fprintf(stderr, "Pushing to %s\n", dest);
err = run_command_v_opt(argv, RUN_GIT_CMD);
if (!err)
continue;
error("failed to push to '%s'", remote->uri[i]);
switch (err) {
case -ERR_RUN_COMMAND_FORK:
error("unable to fork for %s", sender);
case -ERR_RUN_COMMAND_EXEC:
error("unable to exec %s", sender);
break;
case -ERR_RUN_COMMAND_WAITPID:
case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
error("%s died with strange error", sender);
}
errs++;
}
return !!errs;
}
int cmd_push(int argc, const char **argv, const char *prefix)
{
int i;
const char *repo = NULL; /* default repository */
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-') {
repo = arg;
i++;
break;
}
if (!strcmp(arg, "-v")) {
verbose=1;
continue;
}
if (!prefixcmp(arg, "--repo=")) {
repo = arg+7;
continue;
}
if (!strcmp(arg, "--all")) {
all = 1;
continue;
}
if (!strcmp(arg, "--tags")) {
tags = 1;
continue;
}
if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
force = 1;
continue;
}
if (!strcmp(arg, "--thin")) {
thin = 1;
continue;
}
if (!strcmp(arg, "--no-thin")) {
thin = 0;
continue;
}
if (!prefixcmp(arg, "--receive-pack=")) {
receivepack = arg;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
receivepack = arg;
continue;
}
usage(push_usage);
}
set_refspecs(argv + i, argc - i);
return do_push(repo);
}
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