git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH v2 06/18] get_ref_dir(): take the containing directory as argument

From
mhagger@alum.mit.edu <mhagger@alum.mit.edu>
Date
Apr 26, 2012, 22:26 UTC
Message-ID
<1335479227-7877-7-git-send-email-mhagger@alum.mit.edu>
In-Reply-To
<1335479227-7877-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>

Previously, the "dir" argument to get_ref_dir() was a pointer to the top-level ref_dir. Change the function to expect a pointer to the ref_dir corresponding to dirname. This allows entries to be added directly to dir, without having to recurse through the reference trie each time (i.e., we can use add_entry_to_dir() instead of add_ref()).

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/refs.c b/refs.c
index 5e51c10..8670c2e 100644
--- a/refs.c
+++ b/refs.c
@@ -765,7 +765,8 @@ void add_packed_ref(const char *refname, const unsigned char *sha1)
 
 /*
  * Read the loose references for refs from the namespace dirname.
- * dirname must end with '/'.
+ * dirname must end with '/'.  dir must be the directory entry
+ * corresponding to dirname.
  */
 static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 			struct ref_dir *dir)
@@ -806,7 +807,8 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 			/* Silently ignore. */
 		} else if (S_ISDIR(st.st_mode)) {
 			strbuf_addch(&refname, '/');
-			get_ref_dir(refs, refname.buf, dir);
+			get_ref_dir(refs, refname.buf,
+				    &search_for_subdir(dir, refname.buf, 1)->u.subdir);
 		} else {
 			if (*refs->name) {
 				hashclr(sha1);
@@ -819,7 +821,8 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 				hashclr(sha1);
 				flag |= REF_ISBROKEN;
 			}
-			add_ref(dir, create_ref_entry(refname.buf, sha1, flag, 1));
+			add_entry_to_dir(dir,
+					 create_ref_entry(refname.buf, sha1, flag, 1));
 		}
 		strbuf_setlen(&refname, dirnamelen);
 	}
@@ -830,7 +833,8 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 static struct ref_dir *get_loose_refs(struct ref_cache *refs)
 {
 	if (!refs->did_loose) {
-		get_ref_dir(refs, "refs/", &refs->loose);
+		get_ref_dir(refs, "refs/",
+			    &search_for_subdir(&refs->loose, "refs/", 1)->u.subdir);
 		refs->did_loose = 1;
 	}
 	return &refs->loose;
-- 
1.7.10
Previous: Michael HaggertyNext: mhagger@alum.mit.edu
Message 10 of 26 in “Read loose references lazily”
  1. 00/18 Read loose references lazilymhagger@alum.mit.edu, Apr 26, 2012
  2. 01/18 get_ref_dir(): return early if directory cannot be readmhagger@alum.mit.edu, Apr 26, 2012
  3. 02/18 get_ref_dir(): use a strbuf to hold refnamemhagger@alum.mit.edu, Apr 26, 2012
  4. 03/18 get_ref_dir(): rename "base" parameter to "dirname"mhagger@alum.mit.edu, Apr 26, 2012
  5. 04/18 get_ref_dir(): require that the dirname argument ends in '/'mhagger@alum.mit.edu, Apr 26, 2012
  6. 05/18 refs.c: extract function search_for_subdir()mhagger@alum.mit.edu, Apr 26, 2012
  7. Junio C HamanoMay 3, 2012
  8. Junio C HamanoMay 3, 2012
  9. Michael HaggertyMay 4, 2012
  10. 06/18 get_ref_dir(): take the containing directory as argumentmhagger@alum.mit.edu, Apr 26, 2012
  11. 07/18 do_for_each_reflog(): return early on errormhagger@alum.mit.edu, Apr 26, 2012
  12. 08/18 do_for_each_reflog(): use a strbuf to hold logfile namemhagger@alum.mit.edu, Apr 26, 2012
  13. Junio C HamanoApr 26, 2012
  14. Michael HaggertyApr 27, 2012
  15. Junio C HamanoMay 2, 2012
  16. Michael HaggertyMay 3, 2012
  17. 09/18 do_for_each_reflog(): reuse strbuf across recursive function callsmhagger@alum.mit.edu, Apr 26, 2012
  18. 10/18 bisect: copy filename string obtained from git_path()mhagger@alum.mit.edu, Apr 26, 2012
  19. 11/18 find_containing_dir(): use strbuf in implementation of this functionmhagger@alum.mit.edu, Apr 26, 2012
  20. 12/18 refs: wrap top-level ref_dirs in ref_entriesmhagger@alum.mit.edu, Apr 26, 2012
  21. 13/18 read_loose_refs(): rename function from get_ref_dir()mhagger@alum.mit.edu, Apr 26, 2012
  22. 14/18 get_ref_dir(): add function for getting a ref_dir from a ref_entrymhagger@alum.mit.edu, Apr 26, 2012
  23. 15/18 search_for_subdir(): return (ref_dir *) instead of (ref_entry *)mhagger@alum.mit.edu, Apr 26, 2012
  24. 16/18 struct ref_dir: store a reference to the enclosing ref_cachemhagger@alum.mit.edu, Apr 26, 2012
  25. 17/18 read_loose_refs(): eliminate ref_cache argumentmhagger@alum.mit.edu, Apr 26, 2012
  26. 18/18 refs: read loose references lazilymhagger@alum.mit.edu, Apr 26, 2012

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.