For now, we have no configuration options we want to set up for
ourselves, but in the future we may need to. At the very least, we
should invoke git_default_config() for each config option; we will do so
inside of a skeleton config callback so that we know where to add
configuration handling later on when we need it.
Signed-off-by: Emily Shaffer <emilyshaffer@xxxxxxxxxx>
---
builtin/walken.c | 32 ++++++++++++++++++++++++++++++--
1 file changed, 30 insertions(+), 2 deletions(-)
diff --git a/builtin/walken.c b/builtin/walken.c
index daae4f811a..2474a0d7b2 100644
--- a/builtin/walken.c
+++ b/builtin/walken.c
@@ -5,6 +5,7 @@
*/
#include "builtin.h"
+#include "config.h"
#include "parse-options.h"
/*
@@ -24,11 +25,36 @@ const char * const walken_usage[] = {
static void init_walken_defaults(void)
{
/*
- * We don't actually need the same components `git log` does; leave this
- * empty for now.
+ * We don't use any other components or have settings to initialize, so
+ * leave this empty.
*/
}
+/*
+ * This method will be called back by git_config(). It is used to gather values
+ * from the configuration files available to Git.
+ *
+ * Each time git_config() finds a configuration file entry, it calls this
+ * callback. Then, this function should compare it to entries which concern us,
+ * and make settings changes as necessary.
+ *
+ * If we are called with a config setting we care about, we should use one of
+ * the helpers which exist in config.h to pull out the value for ourselves, i.e.
+ * git_config_string(...) or git_config_bool(...).
+ *
+ * If we don't match anything, we should pass it along to another stakeholder
+ * who may otherwise care - in log's case, grep, gpg, and diff-ui. For our case,
+ * we'll ignore everybody else.
+ */
+static int git_walken_config(const char *var, const char *value, void *cb)
+{
+ /*
+ * For now, we don't have any custom configuration, so fall back on the
+ * default config.
+ */
+ return git_default_config(var, value, cb);
+}
+
int cmd_walken(int argc, const char **argv, const char *prefix)
{
struct option options[] = {
@@ -43,6 +69,8 @@ int cmd_walken(int argc, const char **argv, const char *prefix)
init_walken_defaults();
+ git_config(git_walken_config, NULL);
+
/*
* This line is "human-readable" and we are writing a plumbing command,
* so we localize it and use the trace library to print only when
--
2.22.0.410.gd8fdbe21b5-goog
