Marius Paliga <marius.paliga@xxxxxxxxx> writes:
> + default_push_options = git_config_get_value_multi("push.optiondefault");
> + if (default_push_options)
> + for_each_string_list_item(item, default_push_options)
> + if (!string_list_has_string(&push_options, item->string))
> + string_list_append(&push_options, item->string);
One thing that is often overlooked is how to allow users to override
a multi-value configuration variable that gets some values from
lower priority configuration files (e.g. ~/.gitconfig) with
repository specific settings in .git/config, and the way we
typically do so is to define "When a variable definition with an
empty string is given, it is a signal to clear everything
accumulated so far." E.g. if your ~/.gitconfig has
[push]
defaultPushOption = foo
defaultPushOption = bar
and then you write in your .git/config something like
[push]
defaultPushOption =
defaultPushOption = baz
The configuration mechanism reads from lower priority files and then
proceeds to read higher priority files, so the parser would read them
in this order:
push.defaultPushOption = foo
push.defaultPushOption = bar
push.defaultPushOption =
push.defaultPushOption = baz
and then it would build a list ('foo'), then ('foo', 'bar'), and
clears it upon seeing an empty, and compute the final result as
('baz').
You may want to do something like that in this code.
