diff options
Diffstat (limited to 'read-cache.c')
-rw-r--r-- | read-cache.c | 131 |
1 files changed, 74 insertions, 57 deletions
diff --git a/read-cache.c b/read-cache.c index 33dd676ccb..f23c44a81a 100644 --- a/read-cache.c +++ b/read-cache.c @@ -15,7 +15,8 @@ #include "strbuf.h" #include "varint.h" -static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really); +static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, + unsigned int options); /* Mask for the name length in ce_flags in the on-disk index */ @@ -47,6 +48,7 @@ static void replace_index_entry(struct index_state *istate, int nr, struct cache struct cache_entry *old = istate->cache[nr]; remove_name_hash(istate, old); + free(old); set_index_entry(istate, nr, ce); istate->cache_changed = 1; } @@ -58,7 +60,7 @@ void rename_index_entry_at(struct index_state *istate, int nr, const char *new_n new = xmalloc(cache_entry_size(namelen)); copy_cache_entry(new, old); - new->ce_flags &= ~CE_STATE_MASK; + new->ce_flags &= ~CE_HASHED; new->ce_namelen = namelen; memcpy(new->name, new_name, namelen + 1); @@ -478,6 +480,7 @@ 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_nr--; if (pos >= istate->cache_nr) @@ -499,8 +502,10 @@ void remove_marked_cache_entries(struct index_state *istate) unsigned int i, j; for (i = j = 0; i < istate->cache_nr; i++) { - if (ce_array[i]->ce_flags & CE_REMOVE) + if (ce_array[i]->ce_flags & CE_REMOVE) { remove_name_hash(istate, ce_array[i]); + free(ce_array[i]); + } else ce_array[j++] = ce_array[i]; } @@ -579,7 +584,7 @@ static struct cache_entry *create_alias_ce(struct cache_entry *ce, struct cache_ return new; } -static void record_intent_to_add(struct cache_entry *ce) +void set_object_name_for_intent_to_add_entry(struct cache_entry *ce) { unsigned char sha1[20]; if (write_sha1_file("", 0, blob_type, sha1)) @@ -665,7 +670,7 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st, if (index_path(ce->sha1, path, st, HASH_WRITE_OBJECT)) return error("unable to index file %s", path); } else - record_intent_to_add(ce); + set_object_name_for_intent_to_add_entry(ce); if (ignore_case && alias && different_name(ce, alias)) ce = create_alias_ce(ce, alias); @@ -696,7 +701,7 @@ int add_file_to_index(struct index_state *istate, const char *path, int flags) struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, - int refresh) + unsigned int refresh_options) { int size, len; struct cache_entry *ce; @@ -716,10 +721,7 @@ struct cache_entry *make_cache_entry(unsigned int mode, ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); - if (refresh) - return refresh_cache_entry(ce, 0); - - return ce; + return refresh_cache_entry(ce, refresh_options); } int ce_same_name(const struct cache_entry *a, const struct cache_entry *b) @@ -728,11 +730,6 @@ int ce_same_name(const struct cache_entry *a, const struct cache_entry *b) return ce_namelen(b) == len && !memcmp(a->name, b->name, len); } -int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec) -{ - return match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL); -} - /* * We fundamentally don't like some paths: we don't want * dot or dot-dot anywhere, and for obvious reasons don't @@ -1029,10 +1026,12 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate, struct stat st; struct cache_entry *updated; int changed, size; + int refresh = options & CE_MATCH_REFRESH; 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)) + if (!refresh || ce_uptodate(ce)) return ce; /* @@ -1050,6 +1049,8 @@ 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 +1128,9 @@ 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 = (CE_MATCH_REFRESH | + (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; @@ -1149,8 +1152,7 @@ int refresh_index(struct index_state *istate, unsigned int flags, if (ignore_submodules && S_ISGITLINK(ce->ce_mode)) continue; - if (pathspec && - !match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, seen)) + if (pathspec && !ce_path_match(ce, pathspec, seen)) filtered = 1; if (ce_stage(ce)) { @@ -1176,8 +1178,6 @@ 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. @@ -1207,9 +1207,10 @@ int refresh_index(struct index_state *istate, unsigned int flags, return has_errors; } -static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really) +static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, + unsigned int options) { - return refresh_cache_ent(&the_index, ce, really, NULL, NULL); + return refresh_cache_ent(&the_index, ce, options, NULL, NULL); } @@ -1219,6 +1220,42 @@ static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int reall #define INDEX_FORMAT_DEFAULT 3 +static int index_format_config(const char *var, const char *value, void *cb) +{ + unsigned int *version = cb; + if (!strcmp(var, "index.version")) { + *version = git_config_int(var, value); + return 0; + } + return 1; +} + +static unsigned int get_index_format_default(void) +{ + char *envversion = getenv("GIT_INDEX_VERSION"); + char *endp; + unsigned int version = INDEX_FORMAT_DEFAULT; + + if (!envversion) { + git_config(index_format_config, &version); + if (version < INDEX_FORMAT_LB || INDEX_FORMAT_UB < version) { + warning(_("index.version set, but the value is invalid.\n" + "Using version %i"), INDEX_FORMAT_DEFAULT); + return INDEX_FORMAT_DEFAULT; + } + return version; + } + + version = strtoul(envversion, &endp, 10); + if (*endp || + version < INDEX_FORMAT_LB || INDEX_FORMAT_UB < version) { + warning(_("GIT_INDEX_VERSION set, but the value is invalid.\n" + "Using version %i"), INDEX_FORMAT_DEFAULT); + version = INDEX_FORMAT_DEFAULT; + } + return version; +} + /* * dev/ino/uid/gid/size are also just tracked to the low 32 bits * Again - this is just a (very strong in practice) heuristic that @@ -1313,26 +1350,6 @@ int read_index(struct index_state *istate) return read_index_from(istate, get_index_file()); } -#ifndef NEEDS_ALIGNED_ACCESS -#define ntoh_s(var) ntohs(var) -#define ntoh_l(var) ntohl(var) -#else -static inline uint16_t ntoh_s_force_align(void *p) -{ - uint16_t x; - memcpy(&x, p, sizeof(x)); - return ntohs(x); -} -static inline uint32_t ntoh_l_force_align(void *p) -{ - uint32_t x; - memcpy(&x, p, sizeof(x)); - return ntohl(x); -} -#define ntoh_s(var) ntoh_s_force_align(&(var)) -#define ntoh_l(var) ntoh_l_force_align(&(var)) -#endif - static struct cache_entry *cache_entry_from_ondisk(struct ondisk_cache_entry *ondisk, unsigned int flags, const char *name, @@ -1340,16 +1357,16 @@ static struct cache_entry *cache_entry_from_ondisk(struct ondisk_cache_entry *on { struct cache_entry *ce = xmalloc(cache_entry_size(len)); - ce->ce_stat_data.sd_ctime.sec = ntoh_l(ondisk->ctime.sec); - ce->ce_stat_data.sd_mtime.sec = ntoh_l(ondisk->mtime.sec); - ce->ce_stat_data.sd_ctime.nsec = ntoh_l(ondisk->ctime.nsec); - ce->ce_stat_data.sd_mtime.nsec = ntoh_l(ondisk->mtime.nsec); - ce->ce_stat_data.sd_dev = ntoh_l(ondisk->dev); - ce->ce_stat_data.sd_ino = ntoh_l(ondisk->ino); - ce->ce_mode = ntoh_l(ondisk->mode); - ce->ce_stat_data.sd_uid = ntoh_l(ondisk->uid); - ce->ce_stat_data.sd_gid = ntoh_l(ondisk->gid); - ce->ce_stat_data.sd_size = ntoh_l(ondisk->size); + ce->ce_stat_data.sd_ctime.sec = get_be32(&ondisk->ctime.sec); + ce->ce_stat_data.sd_mtime.sec = get_be32(&ondisk->mtime.sec); + ce->ce_stat_data.sd_ctime.nsec = get_be32(&ondisk->ctime.nsec); + ce->ce_stat_data.sd_mtime.nsec = get_be32(&ondisk->mtime.nsec); + ce->ce_stat_data.sd_dev = get_be32(&ondisk->dev); + ce->ce_stat_data.sd_ino = get_be32(&ondisk->ino); + ce->ce_mode = get_be32(&ondisk->mode); + ce->ce_stat_data.sd_uid = get_be32(&ondisk->uid); + ce->ce_stat_data.sd_gid = get_be32(&ondisk->gid); + ce->ce_stat_data.sd_size = get_be32(&ondisk->size); ce->ce_flags = flags & ~CE_NAMEMASK; ce->ce_namelen = len; hashcpy(ce->sha1, ondisk->sha1); @@ -1389,14 +1406,14 @@ static struct cache_entry *create_from_disk(struct ondisk_cache_entry *ondisk, unsigned int flags; /* On-disk flags are just 16 bits */ - flags = ntoh_s(ondisk->flags); + flags = get_be16(&ondisk->flags); len = flags & CE_NAMEMASK; if (flags & CE_EXTENDED) { struct ondisk_cache_entry_extended *ondisk2; int extended_flags; ondisk2 = (struct ondisk_cache_entry_extended *)ondisk; - extended_flags = ntoh_s(ondisk2->flags2) << 16; + extended_flags = get_be16(&ondisk2->flags2) << 16; /* We do not yet understand any bit out of CE_EXTENDED_FLAGS */ if (extended_flags & ~CE_EXTENDED_FLAGS) die("Unknown index entry format %08x", extended_flags); @@ -1795,7 +1812,7 @@ int write_index(struct index_state *istate, int newfd) } if (!istate->version) - istate->version = INDEX_FORMAT_DEFAULT; + istate->version = get_index_format_default(); /* demote version 3 to version 2 when the latter suffices */ if (istate->version == 3 || istate->version == 2) @@ -1894,7 +1911,7 @@ int read_index_unmerged(struct index_state *istate) new_ce->ce_mode = ce->ce_mode; if (add_index_entry(istate, new_ce, 0)) return error("%s: cannot drop to stage #0", - ce->name); + new_ce->name); i = index_name_pos(istate, new_ce->name, len); } return unmerged; |