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fetch: add configuration for set_head behaviour

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In the current implementation, if refs/remotes/$remote/HEAD does not
exist, running fetch will create it, but if it does exist it will not do
anything, which is a somewhat safe and minimal approach. Unfortunately,
for users who wish to NOT have refs/remotes/$remote/HEAD set for any
reason (e.g. so that `git rev-parse origin` doesn't accidentally point
them somewhere they do not want to), there is no way to remove this
behaviour. On the other side of the spectrum, users may want fetch to
automatically update HEAD or at least give them a warning if something
changed on the remote.

Introduce a new setting, remote.$remote.followRemoteHEAD with four
options:

    - "never": do not ever do anything, not even create
    - "create": the current behaviour, now the default behaviour
    - "warn": print a message if remote and local HEAD is different
    - "always": silently update HEAD on every change

Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Bence Ferdinandy
2024-11-29 00:06:46 +01:00
committed by Junio C Hamano
parent 761e62a09a
commit b7f7d16562
5 changed files with 171 additions and 6 deletions
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9
remote.c
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@ -514,6 +514,15 @@ static int handle_config(const char *key, const char *value,
} else if (!strcmp(subkey, "serveroption")) {
return parse_transport_option(key, value,
&remote->server_options);
} else if (!strcmp(subkey, "followremotehead")) {
if (!strcmp(value, "never"))
remote->follow_remote_head = FOLLOW_REMOTE_NEVER;
else if (!strcmp(value, "create"))
remote->follow_remote_head = FOLLOW_REMOTE_CREATE;
else if (!strcmp(value, "warn"))
remote->follow_remote_head = FOLLOW_REMOTE_WARN;
else if (!strcmp(value, "always"))
remote->follow_remote_head = FOLLOW_REMOTE_ALWAYS;
}
return 0;
}