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From: Thomas Gummerer <t.gummerer@gmail.com>
To: git@vger.kernel.org
Cc: trast@inf.ethz.ch, mhagger@alum.mit.edu, gitster@pobox.com,
	pclouds@gmail.com, robin.rosenberg@dewire.com,
	t.gummerer@gmail.com
Subject: [PATCH 19/22] read-cache: write index-v5 cache-tree data
Date: Sun,  7 Jul 2013 10:11:57 +0200	[thread overview]
Message-ID: <1373184720-29767-20-git-send-email-t.gummerer@gmail.com> (raw)
In-Reply-To: <1373184720-29767-1-git-send-email-t.gummerer@gmail.com>

Write the cache-tree data for the index version 5 file format. The
in-memory cache-tree data is converted to the ondisk format, by adding
it to the directory entries, that were compiled from the cache-entries
in the step before.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
---
 read-cache-v5.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/read-cache-v5.c b/read-cache-v5.c
index f056f6b..306de30 100644
--- a/read-cache-v5.c
+++ b/read-cache-v5.c
@@ -960,6 +960,57 @@ static struct conflict_entry *create_conflict_entry_from_ce(struct cache_entry *
 	return create_new_conflict(ce->name, ce_namelen(ce), pathlen);
 }
 
+static void convert_one_to_ondisk_v5(struct hash_table *table, struct cache_tree *it,
+				const char *path, int pathlen, uint32_t crc)
+{
+	int i;
+	struct directory_entry *found, *search;
+
+	crc = crc32(crc, (Bytef*)path, pathlen);
+	found = lookup_hash(crc, table);
+	search = found;
+	while (search && strcmp(path, search->pathname + search->de_pathlen - strlen(path)) != 0)
+		search = search->next_hash;
+	if (!search)
+		return;
+	/*
+	 * The number of subtrees is already calculated by
+	 * compile_directory_data, therefore we only need to
+	 * add the entry_count
+	 */
+	search->de_nentries = it->entry_count;
+	if (0 <= it->entry_count)
+		hashcpy(search->sha1, it->sha1);
+	if (strcmp(path, "") != 0)
+		crc = crc32(crc, (Bytef*)"/", 1);
+
+#if DEBUG
+	if (0 <= it->entry_count)
+		fprintf(stderr, "cache-tree <%.*s> (%d ent, %d subtree) %s\n",
+			pathlen, path, it->entry_count, it->subtree_nr,
+			sha1_to_hex(it->sha1));
+	else
+		fprintf(stderr, "cache-tree <%.*s> (%d subtree) invalid\n",
+			pathlen, path, it->subtree_nr);
+#endif
+
+	for (i = 0; i < it->subtree_nr; i++) {
+		struct cache_tree_sub *down = it->down[i];
+		if (i) {
+			struct cache_tree_sub *prev = it->down[i-1];
+			if (subtree_name_cmp(down->name, down->namelen,
+					     prev->name, prev->namelen) <= 0)
+				die("fatal - unsorted cache subtree");
+		}
+		convert_one_to_ondisk_v5(table, down->cache_tree, down->name, down->namelen, crc);
+	}
+}
+
+static void cache_tree_to_ondisk_v5(struct hash_table *table, struct cache_tree *root)
+{
+	convert_one_to_ondisk_v5(table, root, "", 0, 0);
+}
+
 static struct directory_entry *compile_directory_data(struct index_state *istate,
 						int nfile,
 						unsigned int *ndir,
@@ -1065,6 +1116,8 @@ static struct directory_entry *compile_directory_data(struct index_state *istate
 			previous_entry->next = no_subtrees;
 		}
 	}
+	if (istate->cache_tree)
+		cache_tree_to_ondisk_v5(&table, istate->cache_tree);
 	return de;
 }
 
-- 
1.8.3.453.g1dfc63d

  parent reply	other threads:[~2013-07-07  8:13 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-07  8:11 [PATCH 00/22] Index v5 Thomas Gummerer
2013-07-07  8:11 ` [PATCH 01/22] t2104: Don't fail for index versions other than [23] Thomas Gummerer
2013-07-07  8:11 ` [PATCH 02/22] read-cache: split index file version specific functionality Thomas Gummerer
2013-07-07  8:11 ` [PATCH 03/22] read-cache: move index v2 specific functions to their own file Thomas Gummerer
2013-07-07  8:11 ` [PATCH 04/22] read-cache: Re-read index if index file changed Thomas Gummerer
2013-07-07  8:11 ` [PATCH 05/22] read-cache: add index reading api Thomas Gummerer
2013-07-08  2:01   ` Duy Nguyen
2013-07-08 11:40     ` Thomas Gummerer
2013-07-08  2:19   ` Duy Nguyen
2013-07-08 11:20     ` Thomas Gummerer
2013-07-08 12:45       ` Duy Nguyen
2013-07-08 13:37         ` Thomas Gummerer
2013-07-08 20:54         ` [PATCH 5.5/22] Add documentation for the index api Thomas Gummerer
2013-07-09 15:42           ` Duy Nguyen
2013-07-09 20:10             ` Thomas Gummerer
2013-07-10  5:28               ` Duy Nguyen
2013-07-11 11:30                 ` Thomas Gummerer
2013-07-11 11:42                   ` Duy Nguyen
2013-07-11 12:27                     ` Duy Nguyen
2013-07-08 16:36   ` [PATCH 05/22] read-cache: add index reading api Junio C Hamano
2013-07-08 20:10     ` Thomas Gummerer
2013-07-08 23:09       ` Junio C Hamano
2013-07-09 20:13         ` Thomas Gummerer
2013-07-07  8:11 ` [PATCH 06/22] make sure partially read index is not changed Thomas Gummerer
2013-07-08 16:31   ` Junio C Hamano
2013-07-08 18:33     ` Thomas Gummerer
2013-07-07  8:11 ` [PATCH 07/22] dir.c: use index api Thomas Gummerer
2013-07-07  8:11 ` [PATCH 08/22] tree.c: " Thomas Gummerer
2013-07-07  8:11 ` [PATCH 09/22] name-hash.c: " Thomas Gummerer
2013-07-07  8:11 ` [PATCH 10/22] grep.c: Use " Thomas Gummerer
2013-07-07  8:11 ` [PATCH 11/22] ls-files.c: use the " Thomas Gummerer
2013-07-07  8:11 ` [PATCH 12/22] read-cache: make read_blob_data_from_index use " Thomas Gummerer
2013-07-07  8:11 ` [PATCH 13/22] documentation: add documentation of the index-v5 file format Thomas Gummerer
2013-07-11 10:39   ` Duy Nguyen
2013-07-11 11:39     ` Thomas Gummerer
2013-07-11 11:47       ` Duy Nguyen
2013-07-11 12:26         ` Thomas Gummerer
2013-07-11 12:50           ` Duy Nguyen
2013-07-07  8:11 ` [PATCH 14/22] read-cache: make in-memory format aware of stat_crc Thomas Gummerer
2013-07-07  8:11 ` [PATCH 15/22] read-cache: read index-v5 Thomas Gummerer
2013-07-07 20:18   ` Eric Sunshine
2013-07-08 11:40     ` Thomas Gummerer
2013-07-07  8:11 ` [PATCH 16/22] read-cache: read resolve-undo data Thomas Gummerer
2013-07-07  8:11 ` [PATCH 17/22] read-cache: read cache-tree in index-v5 Thomas Gummerer
2013-07-07 20:41   ` Eric Sunshine
2013-07-07  8:11 ` [PATCH 18/22] read-cache: write index-v5 Thomas Gummerer
2013-07-07 20:43   ` Eric Sunshine
2013-07-07  8:11 ` Thomas Gummerer [this message]
2013-07-07  8:11 ` [PATCH 20/22] read-cache: write resolve-undo data for index-v5 Thomas Gummerer
2013-07-07  8:11 ` [PATCH 21/22] update-index.c: rewrite index when index-version is given Thomas Gummerer
2013-07-07  8:12 ` [PATCH 22/22] p0003-index.sh: add perf test for the index formats Thomas Gummerer

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