remote: ignore failure to remove missing branch.<name>.merge

It is not all too unusual for a branch to use "branch.<name>.remote"
without "branch.<name>.merge".  You may be using the 'push.default'
configuration set to 'current', for example, and do

    $ git checkout -b side colleague/side
    $ git config branch.side.remote colleague

However, "git remote rm" to remove the remote used in such a manner
fails with

    "fatal: could not unset 'branch.<name>.merge'"

because it assumes that a branch that has .remote defined must also
have .merge defined.  Detect the "cannot unset because it is not set
to begin with" case and ignore it.

Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/remote.c b/builtin/remote.c
index e52cf3925b2388008221de6f7cbedeecd6cdd010..01055b7272ca2bd847c8fb938b9cad9afe0d5a19 100644 (file)
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -769,7 +769,9 @@ static int rm(int argc, const char **argv)
                                strbuf_reset(&buf);
                                strbuf_addf(&buf, "branch.%s.%s",
                                                item->string, *k);
-                               git_config_set(buf.buf, NULL);
+                               result = git_config_set_gently(buf.buf, NULL);
+                               if (result && result != CONFIG_NOTHING_SET)
+                                       die(_("could not unset '%s'"), buf.buf);
                        }
                }
        }

diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index 8198d8eb05c5366c7d61a12351c333902a2265b6..f558ad0b39362255ceec67ef219edc91230d0ec3 100755 (executable)
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -153,6 +153,25 @@ test_expect_success 'remove errors out early when deleting non-existent branch'
        )
 '
 
+test_expect_success 'remove remote with a branch without configured merge' '
+       test_when_finished "(
+               git -C test checkout master;
+               git -C test branch -D two;
+               git -C test config --remove-section remote.two;
+               git -C test config --remove-section branch.second;
+               true
+       )" &&
+       (
+               cd test &&
+               git remote add two ../two &&
+               git fetch two &&
+               git checkout -b second two/master^0 &&
+               git config branch.second.remote two &&
+               git checkout master &&
+               git remote rm two
+       )
+'
+
 test_expect_success 'rename errors out early when deleting non-existent branch' '
        (
                cd test &&