Currently `git_config()` returns an integer signifying an error code.
During a previous rewrite of the function most of the code was shifted
to `git_config_with_options()`. `git_config_with_options()` normally
returns positive values if its `config_source` parameter is set as NULL,
as most errors are fatal, and non-fatal potential errors are guarded
by "if" statements that are entered only when no error is possible.
Still a negative value can be returned in case of race condition between
`access_or_die()` & `git_config_from_file()`. Also, all callers of
`git_config()` ignore the return value except for one case in branch.c.
Change `git_config()` return value to void and make it die if it receives
a negative return value from `git_config_with_options()`.
Signed-off-by: Tanay Abhra <tanayabh@xxxxxxxxx>
---
branch.c | 5 +----
cache.h | 2 +-
config.c | 16 ++++++++++++++--
3 files changed, 16 insertions(+), 7 deletions(-)
diff --git a/branch.c b/branch.c
index 46e8aa8..735767d 100644
--- a/branch.c
+++ b/branch.c
@@ -161,10 +161,7 @@ int read_branch_desc(struct strbuf *buf, const char *branch_name)
strbuf_addf(&name, "branch.%s.description", branch_name);
cb.config_name = name.buf;
cb.value = NULL;
- if (git_config(read_branch_desc_cb, &cb) < 0) {
- strbuf_release(&name);
- return -1;
- }
+ git_config(read_branch_desc_cb, &cb);
if (cb.value)
strbuf_addstr(buf, cb.value);
strbuf_release(&name);
diff --git a/cache.h b/cache.h
index 7292aef..c61919d 100644
--- a/cache.h
+++ b/cache.h
@@ -1294,7 +1294,7 @@ extern int git_config_from_buf(config_fn_t fn, const char *name,
const char *buf, size_t len, void *data);
extern void git_config_push_parameter(const char *text);
extern int git_config_from_parameters(config_fn_t fn, void *data);
-extern int git_config(config_fn_t fn, void *);
+extern void git_config(config_fn_t fn, void *);
extern int git_config_with_options(config_fn_t fn, void *,
struct git_config_source *config_source,
int respect_includes);
diff --git a/config.c b/config.c
index 4a15383..c0faaca 100644
--- a/config.c
+++ b/config.c
@@ -1235,9 +1235,21 @@ struct key_value_info {
int linenr;
};
-int git_config(config_fn_t fn, void *data)
+void git_config(config_fn_t fn, void *data)
{
- return git_config_with_options(fn, data, NULL, 1);
+ if (git_config_with_options(fn, data, NULL, 1) < 0)
+ /*
+ * git_config_with_options() normally returns only
+ * positive values, as most errors are fatal, and
+ * non-fatal potential errors are guarded by "if"
+ * statements that are entered only when no error is
+ * possible.
+ *
+ * If we ever encounter a non-fatal error, it means
+ * something went really wrong and we should stop
+ * immediately.
+ */
+ die("Unknown error occured while reading the configuration files");
}
static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
--
1.9.0.GIT
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