readtags,refactor: make Sorter work when multiple tags is given

Signed-off-by: Masatake YAMATO <[email protected]>

extra-cmds/readtags-cmd.c

@@ -64,6 +64,9 @@ struct actionSpec {
 	const char *name;			/* for ACTION_FIND */
 	bool canonicalizing;
 	struct canonWorkArea canon;
+	ptrArray *tagEntryArray;
+	void (* walkerfn) (const tagEntry *, void *);
+	void *dataForWalkerFn;
 };
 
 static const char *ProgramName;
@@ -183,9 +186,7 @@ static void walkTags (tagFile *const file, tagEntry *first_entry,
 					  void (* actionfn) (const tagEntry *, void *), void *data,
 					  struct actionSpec *actionSpec)
 {
-	ptrArray *a = NULL;
-	if (Sorter)
-		a = ptrArrayNew ((ptrArrayDeleteFunc)freeCopiedTag);
+	ptrArray *a = actionSpec->tagEntryArray;
 
 	do
 	{
@@ -233,14 +234,8 @@ static void walkTags (tagFile *const file, tagEntry *first_entry,
 
 	if (a)
 	{
-		ptrArraySort (a, compareTagEntry);
-		size_t count = ptrArrayCount(a);
-		for (unsigned int i = 0; i < count; i++)
-		{
-			tagEntry *e = ptrArrayItem (a, i);
-			(* actionfn) (e, data);
-		}
-		ptrArrayDelete (a);
+		actionSpec->walkerfn = actionfn;
+		actionSpec->dataForWalkerFn = data;
 	}
 }
 #else
@@ -774,6 +769,9 @@ extern int main (int argc, char **argv)
 			.ptags = false,
 			/* .absoluteOnly = false, */
 		},
+		.tagEntryArray = NULL,
+		.walkerfn = NULL,
+		.dataForWalkerFn = NULL,
 	};
 
 	memset (&printOpts, 0, sizeof (printOpts));
@@ -1106,7 +1104,14 @@ extern int main (int argc, char **argv)
 			break;
 	}
 
-	for (unsigned int i = 0; i < ptrArrayCount (inputSpecs); i++)
+	unsigned int count = ptrArrayCount (inputSpecs);
+	/* TODO: if Sorter == NULL but if count > 1 && sort is set to true in !_TAG_FILE_SORT,
+	 * we have to sort as if !_TAG_FILE_SORT is true.
+	 * Sorter must be build here. */
+	if (Sorter || count > 1)
+		actionSpec.tagEntryArray = ptrArrayNew ((ptrArrayDeleteFunc)freeCopiedTag);
+
+	for (unsigned int i = 0; i < count; i++)
 	{
 		struct inputSpec *inputSpec = ptrArrayItem (inputSpecs, i);
 
@@ -1137,6 +1142,19 @@ extern int main (int argc, char **argv)
 		}
 	}
 
+	if (actionSpec.tagEntryArray)
+	{
+		if (Sorter)
+			ptrArraySort (actionSpec.tagEntryArray, compareTagEntry);
+		size_t count = ptrArrayCount(actionSpec.tagEntryArray);
+		for (unsigned int i = 0; i < count; i++)
+		{
+			tagEntry *e = ptrArrayItem (actionSpec.tagEntryArray, i);
+			actionSpec.walkerfn (e, actionSpec.dataForWalkerFn);
+		}
+		ptrArrayDelete (actionSpec.tagEntryArray);
+	}
+
  out:
 	ptrArrayDelete (inputSpecs);