The "shared_repository" config is loaded as part of
check_repository_format_version, but it's not quite like the
other values we check there. Something like
core.repositoryformatversion only makes sense in per-repo
config, but core.sharedrepository can be set in a per-user
config (e.g., to make all "git init" invocations shared by
default).
So it would make more sense as part of git_default_config.
Commit 457f06d (Introduce core.sharedrepository, 2005-12-22)
says:
[...]the config variable is set in the function which
checks the repository format. If this were done in
git_default_config instead, a lot of programs would need
to be modified to call git_config(git_default_config)
first.
This is still the case today, but we have one extra trick up
our sleeve. Now that we have the git_configset
infrastructure, it's not so expensive for us to ask for a
single value. So we can simply lazy-load it on demand.
This should be OK to do in general. There are some problems
with loading config before setup_git_directory() is called,
but we shouldn't be accessing the value before then (if we
were, then it would already be broken, as the variable would
not have been set by check_repository_format_version!). The
trickiest caller is git-init, but it handles the values
manually itself.
Signed-off-by: Jeff King <p...@peff.net>
---
environment.c | 9 +++++++++
setup.c | 2 --
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/environment.c b/environment.c
index b42e238..8b8c8e8 100644
--- a/environment.c
+++ b/environment.c
@@ -326,13 +326,22 @@ const char *get_commit_output_encoding(void)
}
static int the_shared_repository = PERM_UMASK;
+static int need_shared_repository_from_config = 1;
void set_shared_repository(int value)
{
the_shared_repository = value;
+ need_shared_repository_from_config = 0;
}
int get_shared_repository(void)
{
+ if (need_shared_repository_from_config) {
+ const char *var = "core.sharedrepository";
+ const char *value;
+ if (!git_config_get_value(var, &value))
+ the_shared_repository = git_config_perm(var, value);
+ need_shared_repository_from_config = 0;
+ }
return the_shared_repository;
}
diff --git a/setup.c b/setup.c
index ac777c5..a02932b 100644
--- a/setup.c
+++ b/setup.c
@@ -376,8 +376,6 @@ static int check_repo_format(const char *var, const char
*value, void *cb)
if (strcmp(var, "core.repositoryformatversion") == 0)
repository_format_version = git_config_int(var, value);
- else if (strcmp(var, "core.sharedrepository") == 0)
- set_shared_repository(git_config_perm(var, value));
else if (skip_prefix(var, "extensions.", &ext)) {
/*
* record any known extensions here; otherwise,
--
2.8.0.rc2.328.g39e2a47
--
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