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-rw-r--r--read-cache.c70
1 files changed, 42 insertions, 28 deletions
diff --git a/read-cache.c b/read-cache.c
index 928e8fa1ae..7db55883d6 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -194,11 +194,12 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st)
}
int ie_match_stat(struct index_state *istate,
- struct cache_entry *ce, struct stat *st, int options)
+ struct cache_entry *ce, struct stat *st,
+ unsigned int options)
{
unsigned int changed;
- int ignore_valid = options & 01;
- int assume_racy_is_modified = options & 02;
+ int ignore_valid = options & CE_MATCH_IGNORE_VALID;
+ int assume_racy_is_modified = options & CE_MATCH_RACY_IS_DIRTY;
/*
* If it's marked as always valid in the index, it's
@@ -238,10 +239,11 @@ int ie_match_stat(struct index_state *istate,
}
int ie_modified(struct index_state *istate,
- struct cache_entry *ce, struct stat *st, int really)
+ struct cache_entry *ce, struct stat *st, unsigned int options)
{
int changed, changed_fs;
- changed = ie_match_stat(istate, ce, st, really);
+
+ changed = ie_match_stat(istate, ce, st, options);
if (!changed)
return 0;
/*
@@ -348,6 +350,7 @@ int remove_file_from_index(struct index_state *istate, const char *path)
int pos = index_name_pos(istate, path, strlen(path));
if (pos < 0)
pos = -pos-1;
+ cache_tree_invalidate_path(istate->cache_tree, path);
while (pos < istate->cache_nr && !strcmp(istate->cache[pos]->name, path))
remove_index_entry_at(istate, pos);
return 0;
@@ -386,6 +389,7 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose)
int size, namelen, pos;
struct stat st;
struct cache_entry *ce;
+ unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY;
if (lstat(path, &st))
die("%s: unable to stat (%s)", path, strerror(errno));
@@ -420,7 +424,7 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose)
pos = index_name_pos(istate, ce->name, namelen);
if (0 <= pos &&
!ce_stage(istate->cache[pos]) &&
- !ie_modified(istate, istate->cache[pos], &st, 1)) {
+ !ie_match_stat(istate, istate->cache[pos], &st, ce_option)) {
/* Nothing changed, really */
free(ce);
return 0;
@@ -432,7 +436,6 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose)
die("unable to add %s to index",path);
if (verbose)
printf("add '%s'\n", path);
- cache_tree_invalidate_path(istate->cache_tree, path);
return 0;
}
@@ -700,6 +703,7 @@ static int add_index_entry_with_check(struct index_state *istate, struct cache_e
int ok_to_replace = option & ADD_CACHE_OK_TO_REPLACE;
int skip_df_check = option & ADD_CACHE_SKIP_DFCHECK;
+ cache_tree_invalidate_path(istate->cache_tree, ce->name);
pos = index_name_pos(istate, ce->name, ntohs(ce->ce_flags));
/* existing match? Just replace it. */
@@ -782,11 +786,13 @@ int add_index_entry(struct index_state *istate, struct cache_entry *ce, int opti
* to link up the stat cache details with the proper files.
*/
static struct cache_entry *refresh_cache_ent(struct index_state *istate,
- struct cache_entry *ce, int really, int *err)
+ struct cache_entry *ce,
+ unsigned int options, int *err)
{
struct stat st;
struct cache_entry *updated;
int changed, size;
+ int ignore_valid = options & CE_MATCH_IGNORE_VALID;
if (lstat(ce->name, &st) < 0) {
if (err)
@@ -794,16 +800,23 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
return NULL;
}
- changed = ie_match_stat(istate, ce, &st, really);
+ changed = ie_match_stat(istate, ce, &st, options);
if (!changed) {
- if (really && assume_unchanged &&
+ /*
+ * The path is unchanged. If we were told to ignore
+ * valid bit, then we did the actual stat check and
+ * found that the entry is unmodified. If the entry
+ * is not marked VALID, this is the place to mark it
+ * valid again, under "assume unchanged" mode.
+ */
+ if (ignore_valid && assume_unchanged &&
!(ce->ce_flags & htons(CE_VALID)))
; /* mark this one VALID again */
else
return ce;
}
- if (ie_modified(istate, ce, &st, really)) {
+ if (ie_modified(istate, ce, &st, options)) {
if (err)
*err = EINVAL;
return NULL;
@@ -814,13 +827,14 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
memcpy(updated, ce, size);
fill_stat_cache_info(updated, &st);
- /* In this case, if really is not set, we should leave
- * CE_VALID bit alone. Otherwise, paths marked with
- * --no-assume-unchanged (i.e. things to be edited) will
- * reacquire CE_VALID bit automatically, which is not
- * really what we want.
+ /*
+ * If ignore_valid is not set, we should leave CE_VALID bit
+ * alone. Otherwise, paths marked with --no-assume-unchanged
+ * (i.e. things to be edited) will reacquire CE_VALID bit
+ * automatically, which is not really what we want.
*/
- if (!really && assume_unchanged && !(ce->ce_flags & htons(CE_VALID)))
+ if (!ignore_valid && assume_unchanged &&
+ !(ce->ce_flags & htons(CE_VALID)))
updated->ce_flags &= ~htons(CE_VALID);
return updated;
@@ -834,6 +848,7 @@ int refresh_index(struct index_state *istate, unsigned int flags, const char **p
int allow_unmerged = (flags & REFRESH_UNMERGED) != 0;
int quiet = (flags & REFRESH_QUIET) != 0;
int not_new = (flags & REFRESH_IGNORE_MISSING) != 0;
+ unsigned int options = really ? CE_MATCH_IGNORE_VALID : 0;
for (i = 0; i < istate->cache_nr; i++) {
struct cache_entry *ce, *new;
@@ -855,7 +870,7 @@ int refresh_index(struct index_state *istate, unsigned int flags, const char **p
if (pathspec && !match_pathspec(pathspec, ce->name, strlen(ce->name), 0, seen))
continue;
- new = refresh_cache_ent(istate, ce, really, &cache_errno);
+ new = refresh_cache_ent(istate, ce, options, &cache_errno);
if (new == ce)
continue;
if (!new) {
@@ -1137,7 +1152,7 @@ int write_index(struct index_state *istate, int newfd)
{
SHA_CTX c;
struct cache_header hdr;
- int i, removed;
+ int i, err, removed;
struct cache_entry **cache = istate->cache;
int entries = istate->cache_nr;
@@ -1166,16 +1181,15 @@ int write_index(struct index_state *istate, int newfd)
/* Write extension data here */
if (istate->cache_tree) {
- unsigned long sz;
- void *data = cache_tree_write(istate->cache_tree, &sz);
- if (data &&
- !write_index_ext_header(&c, newfd, CACHE_EXT_TREE, sz) &&
- !ce_write(&c, newfd, data, sz))
- free(data);
- else {
- free(data);
+ struct strbuf sb;
+
+ strbuf_init(&sb, 0);
+ cache_tree_write(&sb, istate->cache_tree);
+ err = write_index_ext_header(&c, newfd, CACHE_EXT_TREE, sb.len) < 0
+ || ce_write(&c, newfd, sb.buf, sb.len) < 0;
+ strbuf_release(&sb);
+ if (err)
return -1;
- }
}
return ce_flush(&c, newfd);
}
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