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Re: Cannot override `remote.origin.url` with `-c` option

From
Junio C Hamano <gitster@pobox.com>
Date
Jun 11, 2024, 15:28 UTC
Message-ID
<xmqq34pjxzva.fsf@gitster.g>
In-Reply-To
<20240611075137.GF3248245@coredump.intra.peff.net>
Jeff King <peff@peff.net> writes:
> Of course that leaves two questions:
>
>   1. What are multiple URLs actually good for? I have no idea. I

It came from days back when there weren't a separate push URL IIRC. You may pull from a central place like everybody else, but you may have other publishing points of your work.

Place to fetch must be a single known stable place for obvious reasons. "I have N, so I'll pull from one chosen at random among these N" would lead to madness ;-).

>   2. Is there a way to override the list?
>
>      Sadly, no. For some config keys, we allow a value-less boolean
>      entry to reset the list.

Hmph, I somehow thought that a more widely used "clear" was an empty string, but if we can make the convention around the "I exist and I mean true" entries, that would be great. It would not make much sense to have multi-valued Boolean variable to begin with.

Show 8 quoted lines
> Of course none of that helps your immediate case. I did think of one
> workaround, though, which is to use the "insteadOf" config to rewrite
> the URL. So:
>
>   git -c url.right-url.insteadOf=wrong-url ...
>
> will rewrite all instances of "wrong-url" to use "right-url" instead (in
> origin and elsewhere).
Yup, that is an excellent idea.
Show 27 quoted lines
> diff --git a/remote.c b/remote.c
> index dcb5492c85..69b0f28637 100644
> --- a/remote.c
> +++ b/remote.c
> @@ -63,6 +63,10 @@ static const char *alias_url(const char *url, struct rewrites *r)
>  
>  static void add_url(struct remote *remote, const char *url)
>  {
> +	if (!url) {
> +		remote->url_nr = 0;
> +		return;
> +	}
>  	ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc);
>  	remote->url[remote->url_nr++] = url;
>  }
> @@ -430,10 +434,7 @@ static int handle_config(const char *key, const char *value,
>  	else if (!strcmp(subkey, "prunetags"))
>  		remote->prune_tags = git_config_bool(key, value);
>  	else if (!strcmp(subkey, "url")) {
> -		char *v;
> -		if (git_config_string(&v, key, value))
> -			return -1;
> -		add_url(remote, v);
> +		add_url(remote, xstrdup_or_null(value));
>  	} else if (!strcmp(subkey, "pushurl")) {
>  		char *v;
>  		if (git_config_string(&v, key, value))

I was expecting (with excitement) a mess, but the above is as clean as we can make the idea, I would say. Lack of documentation and tests do count as incompleteness though of course.

Previous: Jeff KingNext: Jeff King
Message 3 of 29 in “Cannot override `remote.origin.url` with `-c` option”
  1. Mathew GeorgeJun 9, 2024
  2. Jeff KingJun 11, 2024
  3. Junio C HamanoJun 11, 2024
  4. Jeff KingJun 13, 2024
  5. 0/11 allow overriding remote.*.urlJeff King, Jun 14, 2024
  6. 01/11 archive: fix check for missing urlJeff King, Jun 14, 2024
  7. 02/11 remote: refactor alias_url() memory ownershipJeff King, Jun 14, 2024
  8. Junio C HamanoJun 14, 2024
  9. 03/11 remote: transfer ownership of memory in add_url(), etcJeff King, Jun 14, 2024
  10. Junio C HamanoJun 14, 2024
  11. Jeff KingJun 16, 2024
  12. Junio C HamanoJun 17, 2024
  13. Elijah NewrenJun 25, 2024
  14. 04/11 remote: use strvecs to store remote url/pushurlJeff King, Jun 14, 2024
  15. Elijah NewrenJun 25, 2024
  16. 05/11 remote: simplify url/pushurl selectionJeff King, Jun 14, 2024
  17. Elijah NewrenJun 25, 2024
  18. 06/11 config: document remote.*.url/pushurl interactionJeff King, Jun 14, 2024
  19. Elijah NewrenJun 25, 2024
  20. 07/11 remote: allow resetting url listJeff King, Jun 14, 2024
  21. Elijah NewrenJun 25, 2024
  22. 08/11 t5801: make remote-testgit GIT_DIR setup more robustJeff King, Jun 14, 2024
  23. Elijah NewrenJun 25, 2024
  24. 09/11 t5801: test remote.*.vcs configJeff King, Jun 14, 2024
  25. 10/11 remote: always require at least one url in a remoteJeff King, Jun 14, 2024
  26. 11/11 remote: drop checks for zero-url caseJeff King, Jun 14, 2024
  27. Elijah NewrenJun 25, 2024
  28. Elijah NewrenJun 25, 2024
  29. Jeff KingJun 26, 2024

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