When false, file names are handled fully transparent by Git,
which is backward compatible with older versions of Git.
+core.protectHFS::
+ If set to true, do not allow checkout of paths that would
+ be considered equivalent to `.git` on an HFS+ filesystem.
+ Defaults to `true` on Mac OS, and `false` elsewhere.
+
+core.protectNTFS::
+ If set to true, do not allow checkout of paths that would
+ cause problems with the NTFS filesystem, e.g. conflict with
+ 8.3 "short" names.
+ Defaults to `true` on Windows, and `false` elsewhere.
+
core.trustctime::
If false, the ctime differences between the index and the
working tree are ignored; useful when the inode change time
proxy use, while defaulting to a common proxy for external domains.
core.ignoreStat::
- If true, commands which modify both the working tree and the index
- will mark the updated paths with the "assume unchanged" bit in the
- index. These marked files are then assumed to stay unchanged in the
- working tree, until you mark them otherwise manually - Git will not
- detect the file changes by lstat() calls. This is useful on systems
- where those are very slow, such as Microsoft Windows.
- See linkgit:git-update-index[1].
- False by default.
+ If true, Git will avoid using lstat() calls to detect if files have
+ changed by setting the "assume-unchanged" bit for those tracked files
+ which it has updated identically in both the index and working tree.
++
+When files are modified outside of Git, the user will need to stage
+the modified files explicitly (e.g. see 'Examples' section in
+linkgit:git-update-index[1]).
+Git will not normally detect changes to those files.
++
+This is useful on systems where lstat() calls are very slow, such as
+CIFS/Microsoft Windows.
++
+False by default.
core.preferSymlinkRefs::
Instead of the default "symref" format for HEAD
confusion and troubles with script usage, aliases that
hide existing Git commands are ignored. Arguments are split by
spaces, the usual shell quoting and escaping is supported.
- quote pair and a backslash can be used to quote them.
+ A quote pair or a backslash can be used to quote them.
+
If the alias expansion is prefixed with an exclamation point,
it will be treated as a shell command. For example, defining
`magenta`, `cyan` and `white`; the attributes are `bold`, `dim`, `ul`,
`blink` and `reverse`. The first color given is the foreground; the
second is the background. The position of the attribute, if any,
-doesn't matter.
+doesn't matter. Attributes may be turned off specifically by prefixing
+them with `no` (e.g., `noreverse`, `noul`, etc).
++
+Colors (foreground and background) may also be given as numbers between
+0 and 255; these use ANSI 256-color mode (but note that not all
+terminals may support this). If your terminal supports it, you may also
+specify 24-bit RGB values as hex, like `#ff0ab3`.
color.diff::
Whether to use ANSI escape sequences to add color to patches.
successful rebase might result in non-trivial conflicts.
Defaults to false.
+receive.advertiseatomic::
+ By default, git-receive-pack will advertise the atomic push
+ capability to its clients. If you don't want to this capability
+ to be advertised, set this variable to false.
+
receive.autogc::
By default, git-receive-pack will run "git-gc --auto" after
receiving data from git-push and updating refs. You can stop
message. Defaults to "refuse".
+
Another option is "updateInstead" which will update the working
- directory (must be clean) if pushing into the current branch. This option is
+ tree if pushing into the current branch. This option is
intended for synchronizing working directories when one side is not easily
accessible via interactive ssh (e.g. a live web site, hence the requirement
that the working directory be clean). This mode also comes in handy when
developing inside a VM to test and fix code on different Operating Systems.
+ +
+ By default, "updateInstead" will refuse the push if the working tree or
+ the index have any difference from the HEAD, but the `push-to-checkout`
+ hook can be used to customize this. See linkgit:githooks[5].
receive.denyNonFastForwards::
If set to true, git-receive-pack will deny a ref update which is
sendemail.smtpserveroption::
sendemail.smtpuser::
sendemail.thread::
+sendemail.transferencoding::
sendemail.validate::
+sendemail.xmailer::
See linkgit:git-send-email[1] for description.
sendemail.signedoffcc::
files which are not currently tracked by Git. Directories which
contain only untracked files, are shown with the directory name
only. Showing untracked files means that Git needs to lstat() all
- all the files in the whole repository, which might be slow on some
+ the files in the whole repository, which might be slow on some
systems. So, this variable controls how the commands displays
the untracked files. Possible values are:
+
static int transfer_fsck_objects = -1;
static int receive_unpack_limit = -1;
static int transfer_unpack_limit = -1;
+static int advertise_atomic_push = 1;
static int unpack_limit = 100;
static int report_status;
static int use_sideband;
+static int use_atomic;
static int quiet;
static int prefer_ofs_delta = 1;
static int auto_update_server_info;
static const char *nonce_status;
static long nonce_stamp_slop;
static unsigned long nonce_stamp_slop_limit;
+static struct ref_transaction *transaction;
static enum deny_action parse_deny_action(const char *var, const char *value)
{
return 0;
}
+ if (strcmp(var, "receive.advertiseatomic") == 0) {
+ advertise_atomic_push = git_config_bool(var, value);
+ return 0;
+ }
+
return git_default_config(var, value, cb);
}
strbuf_addstr(&cap,
"report-status delete-refs side-band-64k quiet");
+ if (advertise_atomic_push)
+ strbuf_addstr(&cap, " atomic");
if (prefer_ofs_delta)
strbuf_addstr(&cap, " ofs-delta");
if (push_cert_nonce)
nonce_stamp_slop = (long)ostamp - (long)stamp;
if (nonce_stamp_slop_limit &&
- abs(nonce_stamp_slop) <= nonce_stamp_slop_limit) {
+ labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) {
/*
* Pretend as if the received nonce (which passes the
* HMAC check, so it is not a forged by third-party)
return 0;
}
- static const char *update_worktree(unsigned char *sha1)
+ static const char *push_to_deploy(unsigned char *sha1,
+ struct argv_array *env,
+ const char *work_tree)
{
const char *update_refresh[] = {
"update-index", "-q", "--ignore-submodules", "--refresh", NULL
const char *read_tree[] = {
"read-tree", "-u", "-m", NULL, NULL
};
- const char *work_tree = git_work_tree_cfg ? git_work_tree_cfg : "..";
- struct argv_array env = ARGV_ARRAY_INIT;
struct child_process child = CHILD_PROCESS_INIT;
- if (is_bare_repository())
- return "denyCurrentBranch = updateInstead needs a worktree";
-
- argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(get_git_dir()));
-
child.argv = update_refresh;
- child.env = env.argv;
+ child.env = env->argv;
child.dir = work_tree;
child.no_stdin = 1;
child.stdout_to_stderr = 1;
child.git_cmd = 1;
- if (run_command(&child)) {
- argv_array_clear(&env);
+ if (run_command(&child))
return "Up-to-date check failed";
- }
/* run_command() does not clean up completely; reinitialize */
child_process_init(&child);
child.argv = diff_files;
- child.env = env.argv;
+ child.env = env->argv;
child.dir = work_tree;
child.no_stdin = 1;
child.stdout_to_stderr = 1;
child.git_cmd = 1;
- if (run_command(&child)) {
- argv_array_clear(&env);
+ if (run_command(&child))
return "Working directory has unstaged changes";
- }
child_process_init(&child);
child.argv = diff_index;
- child.env = env.argv;
+ child.env = env->argv;
child.no_stdin = 1;
child.no_stdout = 1;
child.stdout_to_stderr = 0;
child.git_cmd = 1;
- if (run_command(&child)) {
- argv_array_clear(&env);
+ if (run_command(&child))
return "Working directory has staged changes";
- }
read_tree[3] = sha1_to_hex(sha1);
child_process_init(&child);
child.argv = read_tree;
- child.env = env.argv;
+ child.env = env->argv;
child.dir = work_tree;
child.no_stdin = 1;
child.no_stdout = 1;
child.stdout_to_stderr = 0;
child.git_cmd = 1;
- if (run_command(&child)) {
- argv_array_clear(&env);
+ if (run_command(&child))
return "Could not update working tree to new HEAD";
- }
- argv_array_clear(&env);
return NULL;
}
+ static const char *push_to_checkout_hook = "push-to-checkout";
+
+ static const char *push_to_checkout(unsigned char *sha1,
+ struct argv_array *env,
+ const char *work_tree)
+ {
+ argv_array_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree));
+ if (run_hook_le(env->argv, push_to_checkout_hook,
+ sha1_to_hex(sha1), NULL))
+ return "push-to-checkout hook declined";
+ else
+ return NULL;
+ }
+
+ static const char *update_worktree(unsigned char *sha1)
+ {
+ const char *retval;
+ const char *work_tree = git_work_tree_cfg ? git_work_tree_cfg : "..";
+ struct argv_array env = ARGV_ARRAY_INIT;
+
+ if (is_bare_repository())
+ return "denyCurrentBranch = updateInstead needs a worktree";
+
+ argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(get_git_dir()));
+
+ if (!find_hook(push_to_checkout_hook))
+ retval = push_to_deploy(sha1, &env, work_tree);
+ else
+ retval = push_to_checkout(sha1, &env, work_tree);
+
+ argv_array_clear(&env);
+ return retval;
+ }
+
static const char *update(struct command *cmd, struct shallow_info *si)
{
const char *name = cmd->ref_name;
}
if (is_null_sha1(new_sha1)) {
+ struct strbuf err = STRBUF_INIT;
if (!parse_object(old_sha1)) {
old_sha1 = NULL;
if (ref_exists(name)) {
cmd->did_not_exist = 1;
}
}
- if (delete_ref(namespaced_name, old_sha1, 0)) {
- rp_error("failed to delete %s", name);
+ if (ref_transaction_delete(transaction,
+ namespaced_name,
+ old_sha1,
+ 0, old_sha1 != NULL,
+ "push", &err)) {
+ rp_error("%s", err.buf);
+ strbuf_release(&err);
return "failed to delete";
}
+ strbuf_release(&err);
return NULL; /* good */
}
else {
struct strbuf err = STRBUF_INIT;
- struct ref_transaction *transaction;
-
if (shallow_update && si->shallow_ref[cmd->index] &&
update_shallow_ref(cmd, si))
return "shallow error";
- transaction = ref_transaction_begin(&err);
- if (!transaction ||
- ref_transaction_update(transaction, namespaced_name,
- new_sha1, old_sha1, 0, 1, "push",
- &err) ||
- ref_transaction_commit(transaction, &err)) {
- ref_transaction_free(transaction);
-
+ if (ref_transaction_update(transaction,
+ namespaced_name,
+ new_sha1, old_sha1,
+ 0, 1, "push",
+ &err)) {
rp_error("%s", err.buf);
strbuf_release(&err);
+
return "failed to update ref";
}
-
- ref_transaction_free(transaction);
strbuf_release(&err);
+
return NULL; /* good */
}
}
string_list_append(&ref_list, cmd->ref_name);
item->util = (void *)cmd;
}
- sort_string_list(&ref_list);
+ string_list_sort(&ref_list);
for (cmd = commands; cmd; cmd = cmd->next) {
if (!cmd->error_string)
}
}
+static int should_process_cmd(struct command *cmd)
+{
+ return !cmd->error_string && !cmd->skip_update;
+}
+
+static void warn_if_skipped_connectivity_check(struct command *commands,
+ struct shallow_info *si)
+{
+ struct command *cmd;
+ int checked_connectivity = 1;
+
+ for (cmd = commands; cmd; cmd = cmd->next) {
+ if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) {
+ error("BUG: connectivity check has not been run on ref %s",
+ cmd->ref_name);
+ checked_connectivity = 0;
+ }
+ }
+ if (!checked_connectivity)
+ die("BUG: connectivity check skipped???");
+}
+
+static void execute_commands_non_atomic(struct command *commands,
+ struct shallow_info *si)
+{
+ struct command *cmd;
+ struct strbuf err = STRBUF_INIT;
+
+ for (cmd = commands; cmd; cmd = cmd->next) {
+ if (!should_process_cmd(cmd))
+ continue;
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction) {
+ rp_error("%s", err.buf);
+ strbuf_reset(&err);
+ cmd->error_string = "transaction failed to start";
+ continue;
+ }
+
+ cmd->error_string = update(cmd, si);
+
+ if (!cmd->error_string
+ && ref_transaction_commit(transaction, &err)) {
+ rp_error("%s", err.buf);
+ strbuf_reset(&err);
+ cmd->error_string = "failed to update ref";
+ }
+ ref_transaction_free(transaction);
+ }
+ strbuf_release(&err);
+}
+
+static void execute_commands_atomic(struct command *commands,
+ struct shallow_info *si)
+{
+ struct command *cmd;
+ struct strbuf err = STRBUF_INIT;
+ const char *reported_error = "atomic push failure";
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction) {
+ rp_error("%s", err.buf);
+ strbuf_reset(&err);
+ reported_error = "transaction failed to start";
+ goto failure;
+ }
+
+ for (cmd = commands; cmd; cmd = cmd->next) {
+ if (!should_process_cmd(cmd))
+ continue;
+
+ cmd->error_string = update(cmd, si);
+
+ if (cmd->error_string)
+ goto failure;
+ }
+
+ if (ref_transaction_commit(transaction, &err)) {
+ rp_error("%s", err.buf);
+ reported_error = "atomic transaction failed";
+ goto failure;
+ }
+ goto cleanup;
+
+failure:
+ for (cmd = commands; cmd; cmd = cmd->next)
+ if (!cmd->error_string)
+ cmd->error_string = reported_error;
+
+cleanup:
+ ref_transaction_free(transaction);
+ strbuf_release(&err);
+}
+
static void execute_commands(struct command *commands,
const char *unpacker_error,
struct shallow_info *si)
{
- int checked_connectivity;
struct command *cmd;
unsigned char sha1[20];
struct iterate_data data;
free(head_name_to_free);
head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL);
- checked_connectivity = 1;
- for (cmd = commands; cmd; cmd = cmd->next) {
- if (cmd->error_string)
- continue;
-
- if (cmd->skip_update)
- continue;
-
- cmd->error_string = update(cmd, si);
- if (shallow_update && !cmd->error_string &&
- si->shallow_ref[cmd->index]) {
- error("BUG: connectivity check has not been run on ref %s",
- cmd->ref_name);
- checked_connectivity = 0;
- }
- }
+ if (use_atomic)
+ execute_commands_atomic(commands, si);
+ else
+ execute_commands_non_atomic(commands, si);
- if (shallow_update && !checked_connectivity)
- error("BUG: run 'git fsck' for safety.\n"
- "If there are errors, try to remove "
- "the reported refs above");
+ if (shallow_update)
+ warn_if_skipped_connectivity_check(commands, si);
}
static struct command **queue_command(struct command **tail,
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
+ if (advertise_atomic_push
+ && parse_feature_request(feature_list, "atomic"))
+ use_atomic = 1;
}
if (!strcmp(line, "push-cert")) {