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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
Download Patch File Download Diff File Expand all files Collapse all files

27
builtin/push.c
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@ -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"));