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read-cache: be specific what part of the index has changed

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cache entry additions, removals and modifications are separated
out. The rest of changes are still in the catch-all flag
SOMETHING_CHANGED, which would be more specific later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2014-06-13 19:19:27 +07:00 committed by Junio C Hamano
parent ad837d9ef9
commit e636a7b4d0
4 changed files with 15 additions and 9 deletions
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6
builtin/update-index.c
View file

@ -56,7 +56,7 @@ static int mark_ce_flags(const char *path, int flag, int mark)
else
active_cache[pos]->ce_flags &= ~flag;
cache_tree_invalidate_path(active_cache_tree, path);
active_cache_changed = 1;
active_cache_changed = SOMETHING_CHANGED;
return 0;
}
return -1;
@ -268,7 +268,7 @@ static void chmod_path(int flip, const char *path)
goto fail;
}
cache_tree_invalidate_path(active_cache_tree, path);
active_cache_changed = 1;
active_cache_changed = SOMETHING_CHANGED;
report("chmod %cx '%s'", flip, path);
return;
fail:
@ -889,7 +889,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
INDEX_FORMAT_LB, INDEX_FORMAT_UB);
if (the_index.version != preferred_index_format)
active_cache_changed = 1;
active_cache_changed = SOMETHING_CHANGED;
the_index.version = preferred_index_format;
}

5
cache.h
View file

@ -268,6 +268,11 @@ static inline unsigned int canon_mode(unsigned int mode)
#define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)
#define SOMETHING_CHANGED (1 << 0) /* unclassified changes go here */
#define CE_ENTRY_CHANGED (1 << 1)
#define CE_ENTRY_REMOVED (1 << 2)
#define CE_ENTRY_ADDED (1 << 3)
struct index_state {
struct cache_entry **cache;
unsigned int version;

11
read-cache.c
View file

@ -51,7 +51,7 @@ static void replace_index_entry(struct index_state *istate, int nr, struct cache
remove_name_hash(istate, old);
free(old);
set_index_entry(istate, nr, ce);
istate->cache_changed = 1;
istate->cache_changed |= CE_ENTRY_CHANGED;
}
void rename_index_entry_at(struct index_state *istate, int nr, const char *new_name)
@ -482,7 +482,7 @@ int remove_index_entry_at(struct index_state *istate, int pos)
record_resolve_undo(istate, ce);
remove_name_hash(istate, ce);
free(ce);
istate->cache_changed = 1;
istate->cache_changed |= CE_ENTRY_REMOVED;
istate->cache_nr--;
if (pos >= istate->cache_nr)
return 0;
@ -512,7 +512,7 @@ void remove_marked_cache_entries(struct index_state *istate)
}
if (j == istate->cache_nr)
return;
istate->cache_changed = 1;
istate->cache_changed |= CE_ENTRY_REMOVED;
istate->cache_nr = j;
}
@ -1002,7 +1002,7 @@ int add_index_entry(struct index_state *istate, struct cache_entry *ce, int opti
istate->cache + pos,
(istate->cache_nr - pos - 1) * sizeof(ce));
set_index_entry(istate, pos, ce);
istate->cache_changed = 1;
istate->cache_changed |= CE_ENTRY_ADDED;
return 0;
}
@ -1101,6 +1101,7 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
!(ce->ce_flags & CE_VALID))
updated->ce_flags &= ~CE_VALID;
/* istate->cache_changed is updated in the caller */
return updated;
}
@ -1182,7 +1183,7 @@ int refresh_index(struct index_state *istate, unsigned int flags,
* means the index is not valid anymore.
*/
ce->ce_flags &= ~CE_VALID;
istate->cache_changed = 1;
istate->cache_changed |= CE_ENTRY_CHANGED;
}
if (quiet)
continue;

2
resolve-undo.c
View file

@ -110,7 +110,7 @@ void resolve_undo_clear_index(struct index_state *istate)
string_list_clear(resolve_undo, 1);
free(resolve_undo);
istate->resolve_undo = NULL;
istate->cache_changed = 1;
istate->cache_changed = SOMETHING_CHANGED;
}
int unmerge_index_entry_at(struct index_state *istate, int pos)