Re: [PATCH 11/15] scalar: allow reconfiguring an existing enlistment

On Mon, Aug 30 2021, Johannes Schindelin via GitGitGadget wrote:

This comes in handy during Scalar upgrades, or when config settings were
messed up by mistake.

[...]
 		const char *key;
 		const char *value;
+		int overwrite_on_reconfigure;

If you make this a "keep_on_reconfigure", then ...

 	} config[] = {
-		{ "am.keepCR", "true" },
-		{ "core.FSCache", "true" },
-		{ "core.multiPackIndex", "true" },
-		{ "core.preloadIndex", "true" },
+		/* Required */
+		{ "am.keepCR", "true", 1 },
+		{ "core.FSCache", "true", 1 },
+		{ "core.multiPackIndex", "true", 1 },
+		{ "core.preloadIndex", "true", 1 },

You won't need the churn/boilerplate of adding "1" to everything here,
but can just change the initial patch to use designated initializers.

That along with a throwaway macro like:

#define SCALAR_CFG_TRUE(k) (.key = k, .value = "true")
#define SCALAR_CFG_FALSE(k) (.key = k, .value = "false")

Might (or might not) make this even easier to eyeball...