remote: allow resetting url list

Because remote.*.url is treated as a multi-valued key, there is no way to override previous config. So for example if you have remote.origin.url set to some wrong value, doing: git -c remote.origin.url=right fetch would not work. It would append "right" to the list, which means we'd still fetch from "wrong" (since subsequent values are used only as push urls). Let's provide a mechanism to reset the list, like we do for other multi-valued keys (e.g., credential.helper, http.extraheaders, and merge.suppressDest all use this "empty string means reset" pattern). Reported-by: Mathew George <mathewegeorge@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Jun 14, 2024 at 06:31 UTC 9badf97c42474df3f0474a851bdc2e62e59da403
3 files changed +48 -3
Documentation/config/remote.txt
+4 -1
index eef0bf4f62..8efc53e836 100644 --- a/Documentation/config/remote.txt +++ b/Documentation/config/remote.txt @@ -8,13 +8,16 @@ remote.<name>.url:: linkgit:git-push[1]. A configured remote can have multiple URLs; in this case the first is used for fetching, and all are used for pushing (assuming no `remote.<name>.pushurl` is defined). + Setting this key to the empty string clears the list of urls, + allowing you to override earlier config. remote.<name>.pushurl:: The push URL of a remote repository. See linkgit:git-push[1]. If a `pushurl` option is present in a configured remote, it is used for pushing instead of `remote.<name>.url`. A configured remote can have multiple push URLs; in this case a push goes to - all of them. + all of them. Setting this key to the empty string clears the + list of urls, allowing you to override earlier config. remote.<name>.proxy:: For remotes that require curl (http, https and ftp), the URL to
remote.c
+8 -2
index 9417d83e51..b7262964fb 100644 --- a/remote.c +++ b/remote.c @@ -63,12 +63,18 @@ static char *alias_url(const char *url, struct rewrites *r) static void add_url(struct remote *remote, const char *url) { - strvec_push(&remote->url, url); + if (*url) + strvec_push(&remote->url, url); + else + strvec_clear(&remote->url); } static void add_pushurl(struct remote *remote, const char *pushurl) { - strvec_push(&remote->pushurl, pushurl); + if (*pushurl) + strvec_push(&remote->pushurl, pushurl); + else + strvec_clear(&remote->pushurl); } static void add_pushurl_alias(struct remote_state *remote_state,
t/t5505-remote.sh
+36
index 7789ff12c4..08424e878e 100755 --- a/t/t5505-remote.sh +++ b/t/t5505-remote.sh @@ -1492,4 +1492,40 @@ test_expect_success 'refs/remotes/* <src> refspec and unqualified <dst> DWIM and ) ' +test_expect_success 'empty config clears remote.*.url list' ' + test_when_finished "git config --remove-section remote.multi" && + git config --add remote.multi.url wrong-one && + git config --add remote.multi.url wrong-two && + git -c remote.multi.url= \ + -c remote.multi.url=right-one \ + -c remote.multi.url=right-two \ + remote show -n multi >actual.raw && + grep URL actual.raw >actual && + cat >expect <<-\EOF && + Fetch URL: right-one + Push URL: right-one + Push URL: right-two + EOF + test_cmp expect actual +' + +test_expect_success 'empty config clears remote.*.pushurl list' ' + test_when_finished "git config --remove-section remote.multi" && + git config --add remote.multi.url right && + git config --add remote.multi.url will-be-ignored && + git config --add remote.multi.pushurl wrong-push-one && + git config --add remote.multi.pushurl wrong-push-two && + git -c remote.multi.pushurl= \ + -c remote.multi.pushurl=right-push-one \ + -c remote.multi.pushurl=right-push-two \ + remote show -n multi >actual.raw && + grep URL actual.raw >actual && + cat >expect <<-\EOF && + Fetch URL: right + Push URL: right-push-one + Push URL: right-push-two + EOF + test_cmp expect actual +' + test_done