Subject: Re: [PATCH 4/8] config: Improve variable 'type' handling.

From: Felipe Contreras <[email-masked]>
Date: Sun, 15 Feb 2009 15:34:49 +0200

On Sun, Feb 15, 2009 at 02:43:15PM +0200, Felipe Contreras wrote:
> On Sun, Feb 15, 2009 at 2:24 PM, Johannes Schindelin
> <[email-masked]> wrote:
> > Hi,
> >
> > On Sun, 15 Feb 2009, Felipe Contreras wrote:
> >
> >> +     switch (types) {
> >> +     case TYPE_BOOL: type = T_BOOL; break;
> >> +     case TYPE_INT: type = T_INT; break;
> >> +     case TYPE_BOOL_OR_INT: type = T_BOOL_OR_INT; break;
> >> +     default: break;
> >> +     }
> >
> > Would it not be nicer to get rid of the variable named "type" and use
> > "types == TYPE_BOOL" and similar statements instead?
> 
> I'm not too sure about that. If you read the code you might think you
> could actually have multiple types, but the same can be said about
> actions.
> 
> Anyway, attached is a patch with that change.

Sorry, again, but now inlined:

---
 builtin-config.c |   32 ++++++++++++++++++++------------
 1 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/builtin-config.c b/builtin-config.c
index 084222a..30de93e 100644
--- a/builtin-config.c
+++ b/builtin-config.c
@@ -19,11 +19,10 @@ static int seen;
 static char delim = '=';
 static char key_delim = ' ';
 static char term = '\n';
-static enum { T_RAW, T_INT, T_BOOL, T_BOOL_OR_INT } type = T_RAW;
 
 static int use_global_config, use_system_config;
 static const char *given_config_file;
-static int actions;
+static int actions, types;
 static const char *get_color_slot, *get_colorbool_slot;
 static int end_null;
 
@@ -39,6 +38,10 @@ static int end_null;
 #define ACTION_LIST (1<<9)
 #define ACTION_EDIT (1<<10)
 
+#define TYPE_BOOL (1<<0)
+#define TYPE_INT (1<<1)
+#define TYPE_BOOL_OR_INT (1<<2)
+
 static struct option builtin_config_options[] = {
 	OPT_GROUP("Config file location"),
 	OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
@@ -57,9 +60,9 @@ static struct option builtin_config_options[] = {
 	OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
 	OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
 	OPT_GROUP("Type"),
-	OPT_SET_INT(0, "bool", &type, "value is \"true\" or \"false\"", T_BOOL),
-	OPT_SET_INT(0, "int", &type, "value is decimal number", T_INT),
-	OPT_SET_INT(0, "bool-or-int", &type, NULL, T_BOOL_OR_INT),
+	OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
+	OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
+	OPT_BIT(0, "bool-or-int", &types, NULL, TYPE_BOOL_OR_INT),
 	OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
 	OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
 	OPT_GROUP("Other"),
@@ -105,11 +108,11 @@ static int show_config(const char* key_, const char* value_, void *cb)
 	}
 	if (seen && !do_all)
 		dup_error = 1;
-	if (type == T_INT)
+	if (types & TYPE_INT)
 		sprintf(value, "%d", git_config_int(key_, value_?value_:""));
-	else if (type == T_BOOL)
+	else if (types & TYPE_BOOL)
 		vptr = git_config_bool(key_, value_) ? "true" : "false";
-	else if (type == T_BOOL_OR_INT) {
+	else if (types & TYPE_BOOL_OR_INT) {
 		int is_bool, v;
 		v = git_config_bool_or_int(key_, value_, &is_bool);
 		if (is_bool)
@@ -208,18 +211,18 @@ static char *normalize_value(const char *key, const char *value)
 	if (!value)
 		return NULL;
 
-	if (type == T_RAW)
+	if (types == 0)
 		normalized = xstrdup(value);
 	else {
 		normalized = xmalloc(64);
-		if (type == T_INT) {
+		if (types & TYPE_INT) {
 			int v = git_config_int(key, value);
 			sprintf(normalized, "%d", v);
 		}
-		else if (type == T_BOOL)
+		else if (types & TYPE_BOOL)
 			sprintf(normalized, "%s",
 				git_config_bool(key, value) ? "true" : "false");
-		else if (type == T_BOOL_OR_INT) {
+		else if (types & TYPE_BOOL_OR_INT) {
 			int is_bool, v;
 			v = git_config_bool_or_int(key, value, &is_bool);
 			if (!is_bool)
@@ -336,6 +339,11 @@ int cmd_config(int argc, const char **argv, const char *unused_prefix)
 		key_delim = '\n';
 	}
 
+	if (HAS_MULTI_BITS(types)) {
+		error("only one type at a time.");
+		usage_with_options(builtin_config_usage, builtin_config_options);
+	}
+
 	if (HAS_MULTI_BITS(actions)) {
 		error("only one action at a time.");
 		usage_with_options(builtin_config_usage, builtin_config_options);
-- 
1.6.1.3

-- 
Felipe Contreras