[RFC/PATCH v4 10/49] external odb foreach

@@ -113,3 +113,17 @@ int external_odb_fetch_object(const unsigned char *sha1)
 
 	return -1;
 }
+
+int external_odb_for_each_object(each_external_object_fn fn, void *data)
+{
+	struct odb_helper *o;
+
+	external_odb_init();
+
+	for (o = helpers; o; o = o->next) {
+		int r = odb_helper_for_each_object(o, fn, data);
+		if (r)
+			return r;
+	}
+	return 0;
+}

@@ -5,4 +5,10 @@ const char *external_odb_root(void);
 int external_odb_has_object(const unsigned char *sha1);
 int external_odb_fetch_object(const unsigned char *sha1);
 
+typedef int (*each_external_object_fn)(const unsigned char *sha1,
+				       enum object_type type,
+				       unsigned long size,
+				       void *data);
+int external_odb_for_each_object(each_external_object_fn, void *);
+
 #endif /* EXTERNAL_ODB_H */

@@ -243,3 +243,18 @@ int odb_helper_fetch_object(struct odb_helper *o, const unsigned char *sha1,
 
 	return 0;
 }
+
+int odb_helper_for_each_object(struct odb_helper *o,
+			       each_external_object_fn fn,
+			       void *data)
+{
+	int i;
+	for (i = 0; i < o->have_nr; i++) {
+		struct odb_helper_object *obj = &o->have[i];
+		int r = fn(obj->sha1, obj->type, obj->size, data);
+		if (r)
+			return r;
+	}
+
+	return 0;
+}

@@ -1,6 +1,8 @@
 #ifndef ODB_HELPER_H
 #define ODB_HELPER_H
 
+#include "external-odb.h"
+
 struct odb_helper {
 	const char *name;
 	const char *cmd;

@@ -21,5 +23,7 @@ struct odb_helper *odb_helper_new(const char *name, int namelen);
 int odb_helper_has_object(struct odb_helper *o, const unsigned char *sha1);
 int odb_helper_fetch_object(struct odb_helper *o, const unsigned char *sha1,
 			    int fd);
+int odb_helper_for_each_object(struct odb_helper *o,
+			       each_external_object_fn, void *);
 
 #endif /* ODB_HELPER_H */