object-name: move related functions to object-name

Move object-name-related functions from strbuf.[ch] to object-name.[ch]
so that strbuf is focused on string manipulation routines with minimal
dependencies.

dir.h relied on the forward declration of the repository struct in
strbuf.h. Since that is removed in this patch, add the forward
declaration to dir.h.

Signed-off-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

6 files changed, 27 insertions, 26 deletions

diff --git a/dir.h b/dir.h
index 79b85a01ee..4d83febe9e 100644
--- a/dir.h
+++ b/dir.h
@@ -40,6 +40,8 @@
  *
  */
 
+struct repository;
+
 struct dir_entry {
 	unsigned int len;
 	char name[FLEX_ARRAY]; /* more */
diff --git a/object-name.c b/object-name.c
index 6fc3fa595b..34e0f56703 100644
--- a/object-name.c
+++ b/object-name.c
@@ -768,6 +768,21 @@ static void find_abbrev_len_packed(struct min_abbrev_data *mad)
 		find_abbrev_len_for_pack(p, mad);
 }
 
+void strbuf_repo_add_unique_abbrev(struct strbuf *sb, struct repository *repo,
+				   const struct object_id *oid, int abbrev_len)
+{
+	int r;
+	strbuf_grow(sb, GIT_MAX_HEXSZ + 1);
+	r = repo_find_unique_abbrev_r(repo, sb->buf + sb->len, oid, abbrev_len);
+	strbuf_setlen(sb, sb->len + r);
+}
+
+void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
+			      int abbrev_len)
+{
+	strbuf_repo_add_unique_abbrev(sb, the_repository, oid, abbrev_len);
+}
+
 int repo_find_unique_abbrev_r(struct repository *r, char *hex,
 			      const struct object_id *oid, int len)
 {
diff --git a/object-name.h b/object-name.h
index 1d63698f42..9ae5223071 100644
--- a/object-name.h
+++ b/object-name.h
@@ -40,6 +40,15 @@ struct object_context {
 const char *repo_find_unique_abbrev(struct repository *r, const struct object_id *oid, int len);
 int repo_find_unique_abbrev_r(struct repository *r, char *hex, const struct object_id *oid, int len);
 
+/**
+ * Add the abbreviation, as generated by repo_find_unique_abbrev(), of `sha1` to
+ * the strbuf `sb`.
+ */
+void strbuf_repo_add_unique_abbrev(struct strbuf *sb, struct repository *repo,
+				   const struct object_id *oid, int abbrev_len);
+void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
+			      int abbrev_len);
+
 int repo_get_oid(struct repository *r, const char *str, struct object_id *oid);
 __attribute__((format (printf, 2, 3)))
 int get_oidf(struct object_id *oid, const char *fmt, ...);
diff --git a/pretty.c b/pretty.c
index 0bb938021b..78bac2d818 100644
--- a/pretty.c
+++ b/pretty.c
@@ -18,6 +18,7 @@
 #include "gpg-interface.h"
 #include "trailer.h"
 #include "run-command.h"
+#include "object-name.h"
 
 /*
  * The limit for formatting directives, which enable the caller to append
diff --git a/strbuf.c b/strbuf.c
index 5244029d91..80b7e051cd 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -3,7 +3,6 @@
 #include "environment.h"
 #include "gettext.h"
 #include "hex.h"
-#include "object-name.h"
 #include "repository.h"
 #include "strbuf.h"
 #include "string-list.h"
@@ -1024,21 +1023,6 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
 	strbuf_setlen(sb, sb->len + len);
 }
 
-void strbuf_repo_add_unique_abbrev(struct strbuf *sb, struct repository *repo,
-				   const struct object_id *oid, int abbrev_len)
-{
-	int r;
-	strbuf_grow(sb, GIT_MAX_HEXSZ + 1);
-	r = repo_find_unique_abbrev_r(repo, sb->buf + sb->len, oid, abbrev_len);
-	strbuf_setlen(sb, sb->len + r);
-}
-
-void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
-			      int abbrev_len)
-{
-	strbuf_repo_add_unique_abbrev(sb, the_repository, oid, abbrev_len);
-}
-
 /*
  * Returns the length of a line, without trailing spaces.
  *
diff --git a/strbuf.h b/strbuf.h
index 114ad0c024..5d97e27b99 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -616,16 +616,6 @@ void strbuf_add_separated_string_list(struct strbuf *str,
  */
 void strbuf_list_free(struct strbuf **list);
 
-/**
- * Add the abbreviation, as generated by repo_find_unique_abbrev(), of `sha1` to
- * the strbuf `sb`.
- */
-struct repository;
-void strbuf_repo_add_unique_abbrev(struct strbuf *sb, struct repository *repo,
-				   const struct object_id *oid, int abbrev_len);
-void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
-			      int abbrev_len);
-
 /*
  * Remove the filename from the provided path string. If the path
  * contains a trailing separator, then the path is considered a directory