Re: [PATCH v4 2/3] push: parse and set flag for "--force-if-includes"
From: Junio C Hamano <hidden>
Date: 2020-09-19 20:27:02
Srinidhi Kaushik [off-list ref] writes:
Adds 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.
s/Adds/Add/;
Introduces a new configuration option "push.useForceIfIncludes", which is equivalent to setting "--force-if-includes" in the command line.
s/Introduces/Introduce/; (I won't repeat).
Updates "remote-curl" to recognize and pass this option to "send-pack" when enabled. Updates "advise" to catch the reject reason "REJECT_REF_NEEDS_UPDATE", which is set when the ref status is "REF_STATUS_REJECT_REMOTE_UPDATED" and (optionally) print a help message when the push fails.
All of the above say what were done. A summarizing sentence before
all of the above would make the proposed commit log message perfect,
perhaps:
The previous step 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 ... to indicate that ...
- Introduce a configuration option ...
- Update 'remote-curl' to ...
...
Also, in the proposed log message for [1/3], especially near its
end, how "--force-if-includes" interacts with "--force-with-lease"
was described. The description should be added to the log message
of this change, as it is what introduces the end-user facing
feature. The description can also be in the log for [1/3] as well,
but not having it here for [2/3] is unfriendly to the readers.
quoted hunk
diff --git a/builtin/send-pack.c b/builtin/send-pack.c index 4d76727edb..9289c0eecb 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c@@ -159,6 +159,7 @@ 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}; + unsigned int force_if_includes = 0;
I think OPT_BOOL takes a pointer to int, not unsigned, as it is OPT_SET_INT in disguise, and you can see that a near-by 'progress' that also is fed to OPT_BOOL() is 'int' so you can mimic it.
quoted hunk
@@ -184,6 +185,8 @@ 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() };
quoted hunk
diff --git a/remote.h b/remote.h index 38ab8539e2..72c374d539 100644 --- a/remote.h +++ b/remote.h@@ -350,4 +350,10 @@ int parseopt_push_cas_option(const struct option *, const char *arg, int unset); int is_empty_cas(const struct push_cas_option *); void apply_push_cas(struct push_cas_option *, struct remote *, struct ref *); +/* + * Sets "use_force_if_includes" for "compare-and-swap" + * when "--force-if-includes" is specified. + */ +void push_set_force_if_includes(struct push_cas_option *);
Let's not add this helper function. Instead just open-code a single liner at its two callers. It makes it easier to read and understand the flow and the logic in cmd_push() and cmd_send_pack().
quoted hunk
diff --git a/transport-helper.c b/transport-helper.c index e547e21199..2a4436dd79 100644 --- a/transport-helper.c +++ b/transport-helper.c@@ -868,6 +868,12 @@ 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 called with "--force-if-includes". */
The comment does not add any value as you are already using a descriptive constant name. Drop it to follow suit of existing if statements nearby.
+ 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)Thanks.