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[PATCH v3 2/4] read-cache.c: Refactor --ignore-missing implementation

From
Brad King <brad.king@kitware.com>
Date
Jan 27, 2014, 14:45 UTC
Message-ID
<e8a33f2e20e9f2041bf5f0fa952536755dbdf34c.1390833624.git.brad.king@kitware.com>
In-Reply-To
<cover.1390833624.git.brad.king@kitware.com>

Move lstat ENOENT handling from refresh_index to refresh_cache_ent and activate it with a new CE_MATCH_IGNORE_MISSING option. This will allow other call paths into refresh_cache_ent to use the feature.

Signed-off-by: Brad King <brad.king@kitware.com>
---
 cache.h      | 2 ++
 read-cache.c | 8 +++++---
 2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/cache.h b/cache.h
index c9efe88..c96ada7 100644
--- a/cache.h
+++ b/cache.h
@@ -498,6 +498,8 @@ extern void *read_blob_data_from_index(struct index_state *, const char *, unsig
 #define CE_MATCH_RACY_IS_DIRTY		02
 /* do stat comparison even if CE_SKIP_WORKTREE is true */
 #define CE_MATCH_IGNORE_SKIP_WORKTREE	04
+/* ignore non-existent files during stat update  */
+#define CE_MATCH_IGNORE_MISSING		0x08
 extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
 extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
 
diff --git a/read-cache.c b/read-cache.c
index 33dd676..d61846c 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1031,6 +1031,7 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
 	int changed, size;
 	int ignore_valid = options & CE_MATCH_IGNORE_VALID;
 	int ignore_skip_worktree = options & CE_MATCH_IGNORE_SKIP_WORKTREE;
+	int ignore_missing = options & CE_MATCH_IGNORE_MISSING;
 
 	if (ce_uptodate(ce))
 		return ce;
@@ -1050,6 +1051,8 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
 	}
 
 	if (lstat(ce->name, &st) < 0) {
+		if (ignore_missing && errno == ENOENT)
+			return ce;
 		if (err)
 			*err = errno;
 		return NULL;
@@ -1127,7 +1130,8 @@ int refresh_index(struct index_state *istate, unsigned int flags,
 	int ignore_submodules = (flags & REFRESH_IGNORE_SUBMODULES) != 0;
 	int first = 1;
 	int in_porcelain = (flags & REFRESH_IN_PORCELAIN);
-	unsigned int options = really ? CE_MATCH_IGNORE_VALID : 0;
+	unsigned int options = ((really ? CE_MATCH_IGNORE_VALID : 0) |
+				(not_new ? CE_MATCH_IGNORE_MISSING : 0));
 	const char *modified_fmt;
 	const char *deleted_fmt;
 	const char *typechange_fmt;
@@ -1176,8 +1180,6 @@ int refresh_index(struct index_state *istate, unsigned int flags,
 		if (!new) {
 			const char *fmt;
 
-			if (not_new && cache_errno == ENOENT)
-				continue;
 			if (really && cache_errno == EINVAL) {
 				/* If we are doing --really-refresh that
 				 * means the index is not valid anymore.
-- 
1.8.5.2
Previous: Brad KingNext: Junio C Hamano
Message 16 of 21 in “merge-recursive: Avoid diagnostic on empty work tree”
  1. 0/3 merge-recursive: Avoid diagnostic on empty work treeBrad King, Jan 24, 2014
  2. 1/3 t3030-merge-recursive: Test known breakage with empty work treeBrad King, Jan 24, 2014
  3. Jonathan NiederJan 24, 2014
  4. Brad KingJan 24, 2014
  5. 2/3 read-cache.c: Thread lstat error through make_cache_entry signatureBrad King, Jan 24, 2014
  6. 3/3 merge-recursive: Tolerate missing file when HEAD is up to dateBrad King, Jan 24, 2014
  7. Junio C HamanoJan 24, 2014
  8. Brad KingJan 24, 2014
  9. 0/3 merge-recursive: Avoid diagnostic on empty work treeBrad King, Jan 24, 2014
  10. 1/3 t3030-merge-recursive: Test known breakage with empty work treeBrad King, Jan 24, 2014
  11. 2/3 read-cache.c: Optionally tolerate missing files in make_cache_entryBrad King, Jan 24, 2014
  12. Junio C HamanoJan 24, 2014
  13. 3/3 merge-recursive.c: Tolerate missing files while refreshing indexBrad King, Jan 24, 2014
  14. 0/3 merge-recursive: Avoid diagnostic on empty work treeBrad King, Jan 27, 2014
  15. 1/4 t3030-merge-recursive: Test known breakage with empty work treeBrad King, Jan 27, 2014
  16. 2/4 read-cache.c: Refactor --ignore-missing implementationBrad King, Jan 27, 2014
  17. Junio C HamanoJan 27, 2014
  18. 3/4 read-cache.c: Extend make_cache_entry refresh flag with optionsBrad King, Jan 27, 2014
  19. 4/4 merge-recursive.c: Tolerate missing files while refreshing indexBrad King, Jan 27, 2014
  20. Fwd: [PATCH/RFC 3/3] merge-recursive: Tolerate missing file when HEAD is up to datenewren, Jan 24, 2014
  21. Brad KingJan 24, 2014

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