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push: parse and set flag for "--force-if-includes"

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The previous commit added the necessary machinery to implement the
"--force-if-includes" protection, when "--force-with-lease" is used
without giving exact object the remote still ought to have. Surface
the feature by adding a command line option and a configuration
variable to enable it.

 - Add a flag: "TRANSPORT_PUSH_FORCE_IF_INCLUDES" to indicate that the
   new option was passed from the command line of via configuration
   settings; update command line and configuration parsers to set the
   new flag accordingly.

 - Introduce a new configuration option "push.useForceIfIncludes", which
   is equivalent to setting "--force-if-includes" in the command line.

 - Update "remote-curl" to recognize and pass this option to "send-pack"
   when enabled.

 - Update "advise" to catch the reject reason "REJECT_REF_NEEDS_UPDATE",
   set when the ref status is "REF_STATUS_REJECT_REMOTE_UPDATED" and
   (optionally) print a help message when the push fails.

 - The new option is a "no-op" in the following scenarios:
    * When used without "--force-with-lease".
    * When used with "--force-with-lease", and if the expected commit
      on the remote side is specified as an argument.

Signed-off-by: Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Srinidhi Kaushik 2020-10-03 17:40:45 +05:30 committed by Junio C Hamano
parent 99a1f9ae10
commit 3b990aa645
8 changed files with 68 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
advice.c
View File

@ -11,6 +11,7 @@ int advice_push_already_exists = 1;
int advice_push_fetch_first = 1;
int advice_push_needs_force = 1;
int advice_push_unqualified_ref_name = 1;
int advice_push_ref_needs_update = 1;
int advice_status_hints = 1;
int advice_status_u_option = 1;
int advice_status_ahead_behind_warning = 1;
@ -72,6 +73,7 @@ static struct {
{ "pushFetchFirst", &advice_push_fetch_first },
{ "pushNeedsForce", &advice_push_needs_force },
{ "pushUnqualifiedRefName", &advice_push_unqualified_ref_name },
{ "pushRefNeedsUpdate", &advice_push_ref_needs_update },
{ "statusHints", &advice_status_hints },
{ "statusUoption", &advice_status_u_option },
{ "statusAheadBehindWarning", &advice_status_ahead_behind_warning },
@ -116,6 +118,7 @@ static struct {
[ADVICE_PUSH_ALREADY_EXISTS] = { "pushAlreadyExists", 1 },
[ADVICE_PUSH_FETCH_FIRST] = { "pushFetchFirst", 1 },
[ADVICE_PUSH_NEEDS_FORCE] = { "pushNeedsForce", 1 },
[ADVICE_PUSH_REF_NEEDS_UPDATE] = { "pushRefNeedsUpdate", 1 },
/* make this an alias for backward compatibility */
[ADVICE_PUSH_UPDATE_REJECTED_ALIAS] = { "pushNonFastForward", 1 },

2
advice.h
View File

@ -11,6 +11,7 @@ extern int advice_push_already_exists;
extern int advice_push_fetch_first;
extern int advice_push_needs_force;
extern int advice_push_unqualified_ref_name;
extern int advice_push_ref_needs_update;
extern int advice_status_hints;
extern int advice_status_u_option;
extern int advice_status_ahead_behind_warning;
@ -60,6 +61,7 @@ extern int advice_add_empty_pathspec;
ADVICE_PUSH_UNQUALIFIED_REF_NAME,
ADVICE_PUSH_UPDATE_REJECTED_ALIAS,
ADVICE_PUSH_UPDATE_REJECTED,
ADVICE_PUSH_REF_NEEDS_UPDATE,
ADVICE_RESET_QUIET_WARNING,
ADVICE_RESOLVE_CONFLICT,
ADVICE_RM_HINTS,

27
builtin/push.c
View File

@ -290,6 +290,12 @@ static const char message_advice_ref_needs_force[] =
"or update a remote ref to make it point at a non-commit object,\n"
"without using the '--force' option.\n");
static const char message_advice_ref_needs_update[] =
N_("Updates were rejected because the tip of the remote-tracking\n"
"branch has been updated since the last checkout. You may want\n"
"to integrate those changes locally (e.g., 'git pull ...')\n"
"before forcing an update.\n");
static void advise_pull_before_push(void)
{
if (!advice_push_non_ff_current || !advice_push_update_rejected)
@ -325,6 +331,13 @@ static void advise_ref_needs_force(void)
advise(_(message_advice_ref_needs_force));
}
static void advise_ref_needs_update(void)
{
if (!advice_push_ref_needs_update || !advice_push_update_rejected)
return;
advise(_(message_advice_ref_needs_update));
}
static int push_with_options(struct transport *transport, struct refspec *rs,
int flags)
{
@ -374,6 +387,8 @@ static int push_with_options(struct transport *transport, struct refspec *rs,
advise_ref_fetch_first();
} else if (reject_reasons & REJECT_NEEDS_FORCE) {
advise_ref_needs_force();
} else if (reject_reasons & REJECT_REF_NEEDS_UPDATE) {
advise_ref_needs_update();
}
return 1;
@ -510,6 +525,12 @@ static int git_push_config(const char *k, const char *v, void *cb)
if (!v)
return config_error_nonbool(k);
return color_parse(v, push_colors[slot]);
} else if (!strcmp(k, "push.useforceifincludes")) {
if (git_config_bool(k, v))
*flags |= TRANSPORT_PUSH_FORCE_IF_INCLUDES;
else
*flags &= ~TRANSPORT_PUSH_FORCE_IF_INCLUDES;
return 0;
}
return git_default_config(k, v, NULL);
@ -541,6 +562,9 @@ int cmd_push(int argc, const char **argv, const char *prefix)
OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
N_("require old value of ref to be at this value"),
PARSE_OPT_OPTARG | PARSE_OPT_LITERAL_ARGHELP, parseopt_push_cas_option),
OPT_BIT(0, TRANS_OPT_FORCE_IF_INCLUDES, &flags,
N_("require remote updates to be integrated locally"),
TRANSPORT_PUSH_FORCE_IF_INCLUDES),
OPT_CALLBACK(0, "recurse-submodules", &recurse_submodules, "(check|on-demand|no)",
N_("control recursive pushing of submodules"), option_parse_recurse_submodules),
OPT_BOOL_F( 0 , "thin", &thin, N_("use thin pack"), PARSE_OPT_NOCOMPLETE),
@ -625,6 +649,9 @@ int cmd_push(int argc, const char **argv, const char *prefix)
if ((flags & TRANSPORT_PUSH_ALL) && (flags & TRANSPORT_PUSH_MIRROR))
die(_("--all and --mirror are incompatible"));
if (!is_empty_cas(&cas) && (flags & TRANSPORT_PUSH_FORCE_IF_INCLUDES))
cas.use_force_if_includes = 1;
for_each_string_list_item(item, push_options)
if (strchr(item->string, '\n'))
die(_("push options must not have new line characters"));

6
builtin/send-pack.c
View File

@ -178,6 +178,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
int progress = -1;
int from_stdin = 0;
struct push_cas_option cas = {0};
int force_if_includes = 0;
struct packet_reader reader;
struct option options[] = {
@ -203,6 +204,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
N_("require old value of ref to be at this value"),
PARSE_OPT_OPTARG, parseopt_push_cas_option),
OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
N_("require remote updates to be integrated locally")),
OPT_END()
};
@ -304,6 +307,9 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
if (!is_empty_cas(&cas))
apply_push_cas(&cas, remote, remote_refs);
if (!is_empty_cas(&cas) && force_if_includes)
cas.use_force_if_includes = 1;
set_ref_status_for_push(remote_refs, args.send_mirror,
args.force_update);

14
remote-curl.c
View File

@ -44,7 +44,8 @@ struct options {
from_promisor : 1,
atomic : 1,
object_format : 1;
object_format : 1,
force_if_includes : 1;
const struct git_hash_algo *hash_algo;
};
static struct options options;
@ -131,6 +132,14 @@ static int set_option(const char *name, const char *value)
string_list_append(&cas_options, val.buf);
strbuf_release(&val);
return 0;
} else if (!strcmp(name, TRANS_OPT_FORCE_IF_INCLUDES)) {
if (!strcmp(value, "true"))
options.force_if_includes = 1;
else if (!strcmp(value, "false"))
options.force_if_includes = 0;
else
return -1;
return 0;
} else if (!strcmp(name, "cloning")) {
if (!strcmp(value, "true"))
options.cloning = 1;
@ -1318,6 +1327,9 @@ static int push_git(struct discovery *heads, int nr_spec, const char **specs)
strvec_push(&args, cas_option->string);
strvec_push(&args, url.buf);
if (options.force_if_includes)
strvec_push(&args, "--force-if-includes");
strvec_push(&args, "--stdin");
for (i = 0; i < nr_spec; i++)
packet_buf_write(&preamble, "%s\n", specs[i]);

5
transport-helper.c
View File

@ -938,6 +938,11 @@ static void set_common_push_options(struct transport *transport,
if (set_helper_option(transport, TRANS_OPT_ATOMIC, "true") != 0)
die(_("helper %s does not support --atomic"), name);
if (flags & TRANSPORT_PUSH_FORCE_IF_INCLUDES)
if (set_helper_option(transport, TRANS_OPT_FORCE_IF_INCLUDES, "true") != 0)
die(_("helper %s does not support --%s"),
name, TRANS_OPT_FORCE_IF_INCLUDES);
if (flags & TRANSPORT_PUSH_OPTIONS) {
struct string_list_item *item;
for_each_string_list_item(item, transport->push_options)

2
transport.c
View File

@ -748,6 +748,8 @@ void transport_print_push_status(const char *dest, struct ref *refs,
*reject_reasons |= REJECT_FETCH_FIRST;
} else if (ref->status == REF_STATUS_REJECT_NEEDS_FORCE) {
*reject_reasons |= REJECT_NEEDS_FORCE;
} else if (ref->status == REF_STATUS_REJECT_REMOTE_UPDATED) {
*reject_reasons |= REJECT_REF_NEEDS_UPDATE;
}
}
free(head);

5
transport.h
View File

@ -136,6 +136,7 @@ struct transport {
#define TRANSPORT_PUSH_ATOMIC (1<<13)
#define TRANSPORT_PUSH_OPTIONS (1<<14)
#define TRANSPORT_RECURSE_SUBMODULES_ONLY (1<<15)
#define TRANSPORT_PUSH_FORCE_IF_INCLUDES (1<<16)
int transport_summary_width(const struct ref *refs);
@ -208,6 +209,9 @@ void transport_check_allowed(const char *type);
/* Request atomic (all-or-nothing) updates when pushing */
#define TRANS_OPT_ATOMIC "atomic"
/* Require remote changes to be integrated locally. */
#define TRANS_OPT_FORCE_IF_INCLUDES "force-if-includes"
/**
* Returns 0 if the option was used, non-zero otherwise. Prints a
* message to stderr if the option is not used.
@ -222,6 +226,7 @@ void transport_set_verbosity(struct transport *transport, int verbosity,
#define REJECT_ALREADY_EXISTS 0x04
#define REJECT_FETCH_FIRST 0x08
#define REJECT_NEEDS_FORCE 0x10
#define REJECT_REF_NEEDS_UPDATE 0x20
int transport_push(struct repository *repo,
struct transport *connection,