refs: use name "prefix" consistently

In the context of the for_each_ref() functions, call the prefix that
references must start with "prefix". (In some places it was called
"base".) This is clearer, and also prevents confusion with another
planned use of the word "base".

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2 files changed, 19 insertions, 19 deletions

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 8fa897b..d5c4789 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -542,7 +542,7 @@ static struct ref_entry *current_ref;
 typedef int each_ref_entry_fn(struct ref_entry *entry, void *cb_data);
 
 struct ref_entry_cb {
-	const char *base;
+	const char *prefix;
 	int trim;
 	int flags;
 	each_ref_fn *fn;
@@ -559,7 +559,7 @@ static int do_one_ref(struct ref_entry *entry, void *cb_data)
 	struct ref_entry *old_current_ref;
 	int retval;
 
-	if (!starts_with(entry->name, data->base))
+	if (!starts_with(entry->name, data->prefix))
 		return 0;
 
 	if (!(data->flags & DO_FOR_EACH_INCLUDE_BROKEN) &&
@@ -1824,12 +1824,12 @@ int peel_ref(const char *refname, unsigned char *sha1)
 
 /*
  * Call fn for each reference in the specified ref_cache, omitting
- * references not in the containing_dir of base.  fn is called for all
- * references, including broken ones.  If fn ever returns a non-zero
+ * references not in the containing_dir of prefix. Call fn for all
+ * references, including broken ones. If fn ever returns a non-zero
  * value, stop the iteration and return that value; otherwise, return
  * 0.
  */
-static int do_for_each_entry(struct ref_cache *refs, const char *base,
+static int do_for_each_entry(struct ref_cache *refs, const char *prefix,
 			     each_ref_entry_fn fn, void *cb_data)
 {
 	struct packed_ref_cache *packed_ref_cache;
@@ -1846,8 +1846,8 @@ static int do_for_each_entry(struct ref_cache *refs, const char *base,
 	 * disk.
 	 */
 	loose_dir = get_loose_refs(refs);
-	if (base && *base) {
-		loose_dir = find_containing_dir(loose_dir, base, 0);
+	if (prefix && *prefix) {
+		loose_dir = find_containing_dir(loose_dir, prefix, 0);
 	}
 	if (loose_dir)
 		prime_ref_dir(loose_dir);
@@ -1855,8 +1855,8 @@ static int do_for_each_entry(struct ref_cache *refs, const char *base,
 	packed_ref_cache = get_packed_ref_cache(refs);
 	acquire_packed_ref_cache(packed_ref_cache);
 	packed_dir = get_packed_ref_dir(packed_ref_cache);
-	if (base && *base) {
-		packed_dir = find_containing_dir(packed_dir, base, 0);
+	if (prefix && *prefix) {
+		packed_dir = find_containing_dir(packed_dir, prefix, 0);
 	}
 
 	if (packed_dir && loose_dir) {
@@ -1878,14 +1878,14 @@ static int do_for_each_entry(struct ref_cache *refs, const char *base,
 	return retval;
 }
 
-int do_for_each_ref(const char *submodule, const char *base,
+int do_for_each_ref(const char *submodule, const char *prefix,
 		    each_ref_fn fn, int trim, int flags, void *cb_data)
 {
 	struct ref_entry_cb data;
 	struct ref_cache *refs;
 
 	refs = get_ref_cache(submodule);
-	data.base = base;
+	data.prefix = prefix;
 	data.trim = trim;
 	data.flags = flags;
 	data.fn = fn;
@@ -1896,7 +1896,7 @@ int do_for_each_ref(const char *submodule, const char *base,
 	if (ref_paranoia)
 		data.flags |= DO_FOR_EACH_INCLUDE_BROKEN;
 
-	return do_for_each_entry(refs, base, do_one_ref, &data);
+	return do_for_each_entry(refs, prefix, do_one_ref, &data);
 }
 
 /*
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index b4dd545..8ad02d8 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -250,16 +250,16 @@ int rename_ref_available(const char *oldname, const char *newname);
 
 /*
  * Call fn for each reference in the specified submodule for which the
- * refname begins with base. If trim is non-zero, then trim that many
- * characters off the beginning of each refname before passing the
- * refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to include
- * broken references in the iteration. If fn ever returns a non-zero
- * value, stop the iteration and return that value; otherwise, return
- * 0.
+ * refname begins with prefix. If trim is non-zero, then trim that
+ * many characters off the beginning of each refname before passing
+ * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to
+ * include broken references in the iteration. If fn ever returns a
+ * non-zero value, stop the iteration and return that value;
+ * otherwise, return 0.
  *
  * This is the common backend for the for_each_*ref* functions.
  */
-int do_for_each_ref(const char *submodule, const char *base,
+int do_for_each_ref(const char *submodule, const char *prefix,
 		    each_ref_fn fn, int trim, int flags, void *cb_data);
 
 /*