diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | builtin-apply.c | 2 | ||||
| -rw-r--r-- | builtin-commit.c | 6 | ||||
| -rw-r--r-- | builtin-read-tree.c | 2 | ||||
| -rw-r--r-- | cache.h | 41 | ||||
| -rw-r--r-- | config.c | 5 | ||||
| -rw-r--r-- | diff-lib.c | 35 | ||||
| -rw-r--r-- | dir.c | 2 | ||||
| -rw-r--r-- | environment.c | 1 | ||||
| -rw-r--r-- | name-hash.c | 119 | ||||
| -rw-r--r-- | read-cache.c | 144 | ||||
| -rw-r--r-- | symlinks.c | 82 | ||||
| -rwxr-xr-x | t/t4027-diff-submodule.sh | 7 | ||||
| -rwxr-xr-x | t/t7506-status-submodule.sh | 38 | ||||
| -rw-r--r-- | unpack-trees.c | 55 | ||||
| -rw-r--r-- | unpack-trees.h | 22 |
16 files changed, 393 insertions, 169 deletions
@@ -423,6 +423,7 @@ LIB_OBJS += log-tree.o LIB_OBJS += mailmap.o LIB_OBJS += match-trees.o LIB_OBJS += merge-file.o +LIB_OBJS += name-hash.o LIB_OBJS += object.o LIB_OBJS += pack-check.o LIB_OBJS += pack-revindex.o diff --git a/builtin-apply.c b/builtin-apply.c index caa3f2aa0..1103625a4 100644 --- a/builtin-apply.c +++ b/builtin-apply.c @@ -2247,7 +2247,7 @@ static int check_to_create_blob(const char *new_name, int ok_if_exists) * In such a case, path "new_name" does not exist as * far as git is concerned. */ - if (has_symlink_leading_path(new_name, NULL)) + if (has_symlink_leading_path(strlen(new_name), new_name)) return 0; return error("%s: already exists in working directory", new_name); diff --git a/builtin-commit.c b/builtin-commit.c index 256181a68..6433f86cb 100644 --- a/builtin-commit.c +++ b/builtin-commit.c @@ -175,9 +175,11 @@ static void add_remove_files(struct path_list *list) { int i; for (i = 0; i < list->nr; i++) { + struct stat st; struct path_list_item *p = &(list->items[i]); - if (file_exists(p->path)) - add_file_to_cache(p->path, 0); + + if (!lstat(p->path, &st)) + add_to_cache(p->path, &st, 0); else remove_file_from_cache(p->path); } diff --git a/builtin-read-tree.c b/builtin-read-tree.c index e9cfd2bbc..7ac30883b 100644 --- a/builtin-read-tree.c +++ b/builtin-read-tree.c @@ -40,7 +40,7 @@ static int read_cache_unmerged(void) for (i = 0; i < active_nr; i++) { struct cache_entry *ce = active_cache[i]; if (ce_stage(ce)) { - remove_index_entry(ce); + remove_name_hash(ce); if (last && !strcmp(ce->name, last->name)) continue; cache_tree_invalidate_path(active_cache_tree, ce->name); @@ -133,6 +133,7 @@ struct cache_entry { #define CE_UPDATE (0x10000) #define CE_REMOVE (0x20000) #define CE_UPTODATE (0x40000) +#define CE_ADDED (0x80000) #define CE_HASHED (0x100000) #define CE_UNHASHED (0x200000) @@ -153,20 +154,6 @@ static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state; } -/* - * We don't actually *remove* it, we can just mark it invalid so that - * we won't find it in lookups. - * - * Not only would we have to search the lists (simple enough), but - * we'd also have to rehash other hash buckets in case this makes the - * hash bucket empty (common). So it's much better to just mark - * it. - */ -static inline void remove_index_entry(struct cache_entry *ce) -{ - ce->ce_flags |= CE_UNHASHED; -} - static inline unsigned create_ce_flags(size_t len, unsigned stage) { if (len >= CE_NAMEMASK) @@ -241,6 +228,23 @@ struct index_state { extern struct index_state the_index; +/* Name hashing */ +extern void add_name_hash(struct index_state *istate, struct cache_entry *ce); +/* + * We don't actually *remove* it, we can just mark it invalid so that + * we won't find it in lookups. + * + * Not only would we have to search the lists (simple enough), but + * we'd also have to rehash other hash buckets in case this makes the + * hash bucket empty (common). So it's much better to just mark + * it. + */ +static inline void remove_name_hash(struct cache_entry *ce) +{ + ce->ce_flags |= CE_UNHASHED; +} + + #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS #define active_cache (the_index.cache) #define active_nr (the_index.cache_nr) @@ -257,11 +261,12 @@ extern struct index_state the_index; #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) +#define add_to_cache(path, st, verbose) add_to_index(&the_index, (path), (st), (verbose)) #define add_file_to_cache(path, verbose) add_file_to_index(&the_index, (path), (verbose)) #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL) #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) -#define cache_name_exists(name, namelen) index_name_exists(&the_index, (name), (namelen)) +#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase)) #endif enum object_type { @@ -351,7 +356,7 @@ extern int write_index(const struct index_state *, int newfd); extern int discard_index(struct index_state *); extern int unmerged_index(const struct index_state *); extern int verify_path(const char *path); -extern int index_name_exists(struct index_state *istate, const char *name, int namelen); +extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase); extern int index_name_pos(const struct index_state *, const char *name, int namelen); #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ @@ -361,6 +366,7 @@ extern int add_index_entry(struct index_state *, struct cache_entry *ce, int opt extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really); extern int remove_index_entry_at(struct index_state *, int pos); extern int remove_file_from_index(struct index_state *, const char *path); +extern int add_to_index(struct index_state *, const char *path, struct stat *, int verbose); extern int add_file_to_index(struct index_state *, const char *path, int verbose); extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh); extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); @@ -405,6 +411,7 @@ extern int delete_ref(const char *, const unsigned char *sha1); extern int trust_executable_bit; extern int quote_path_fully; extern int has_symlinks; +extern int ignore_case; extern int assume_unchanged; extern int prefer_symlink_refs; extern int log_all_ref_updates; @@ -599,7 +606,7 @@ struct checkout { }; extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); -extern int has_symlink_leading_path(const char *name, char *last_symlink); +extern int has_symlink_leading_path(int len, const char *name); extern struct alternate_object_database { struct alternate_object_database *next; @@ -350,6 +350,11 @@ int git_default_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.ignorecase")) { + ignore_case = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "core.bare")) { is_bare_repository_cfg = git_config_bool(var, value); return 0; diff --git a/diff-lib.c b/diff-lib.c index 9139e45fb..fe2ccec7e 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -337,22 +337,41 @@ int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv) } return run_diff_files(revs, options); } + /* - * See if work tree has an entity that can be staged. Return 0 if so, - * return 1 if not and return -1 if error. + * Has the work tree entity been removed? + * + * Return 1 if it was removed from the work tree, 0 if an entity to be + * compared with the cache entry ce still exists (the latter includes + * the case where a directory that is not a submodule repository + * exists for ce that is a submodule -- it is a submodule that is not + * checked out). Return negative for an error. */ -static int check_work_tree_entity(const struct cache_entry *ce, struct stat *st, char *symcache) +static int check_removed(const struct cache_entry *ce, struct stat *st) { if (lstat(ce->name, st) < 0) { if (errno != ENOENT && errno != ENOTDIR) return -1; return 1; } - if (has_symlink_leading_path(ce->name, symcache)) + if (has_symlink_leading_path(ce_namelen(ce), ce->name)) return 1; if (S_ISDIR(st->st_mode)) { unsigned char sub[20]; - if (resolve_gitlink_ref(ce->name, "HEAD", sub)) + + /* + * If ce is already a gitlink, we can have a plain + * directory (i.e. the submodule is not checked out), + * or a checked out submodule. Either case this is not + * a case where something was removed from the work tree, + * so we will return 0. + * + * Otherwise, if the directory is not a submodule + * repository, that means ce which was a blob turned into + * a directory --- the blob was removed! + */ + if (!S_ISGITLINK(ce->ce_mode) && + resolve_gitlink_ref(ce->name, "HEAD", sub)) return 1; } return 0; @@ -402,7 +421,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option) memset(&(dpath->parent[0]), 0, sizeof(struct combine_diff_parent)*5); - changed = check_work_tree_entity(ce, &st, symcache); + changed = check_removed(ce, &st); if (!changed) dpath->mode = ce_mode_from_stat(ce, st.st_mode); else { @@ -466,7 +485,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option) if (ce_uptodate(ce)) continue; - changed = check_work_tree_entity(ce, &st, symcache); + changed = check_removed(ce, &st); if (changed) { if (changed < 0) { perror(ce->name); @@ -527,7 +546,7 @@ static int get_stat_data(struct cache_entry *ce, if (!cached) { int changed; struct stat st; - changed = check_work_tree_entity(ce, &st, cbdata->symcache); + changed = check_removed(ce, &st); if (changed < 0) return -1; else if (changed) { @@ -389,7 +389,7 @@ static struct dir_entry *dir_entry_new(const char *pathname, int len) struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) { - if (cache_name_exists(pathname, len)) + if (cache_name_exists(pathname, len, ignore_case)) return NULL; ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); diff --git a/environment.c b/environment.c index 4892a302b..55c252706 100644 --- a/environment.c +++ b/environment.c @@ -14,6 +14,7 @@ char git_default_name[MAX_GITNAME]; int trust_executable_bit = 1; int quote_path_fully = 1; int has_symlinks = 1; +int ignore_case; int assume_unchanged; int prefer_symlink_refs; int is_bare_repository_cfg = -1; /* unspecified */ diff --git a/name-hash.c b/name-hash.c new file mode 100644 index 000000000..0031d78e8 --- /dev/null +++ b/name-hash.c @@ -0,0 +1,119 @@ +/* + * name-hash.c + * + * Hashing names in the index state + * + * Copyright (C) 2008 Linus Torvalds + */ +#define NO_THE_INDEX_COMPATIBILITY_MACROS +#include "cache.h" + +/* + * This removes bit 5 if bit 6 is set. + * + * That will make US-ASCII characters hash to their upper-case + * equivalent. We could easily do this one whole word at a time, + * but that's for future worries. + */ +static inline unsigned char icase_hash(unsigned char c) +{ + return c & ~((c & 0x40) >> 1); +} + +static unsigned int hash_name(const char *name, int namelen) +{ + unsigned int hash = 0x123; + + do { + unsigned char c = *name++; + c = icase_hash(c); + hash = hash*101 + c; + } while (--namelen); + return hash; +} + +static void hash_index_entry(struct index_state *istate, struct cache_entry *ce) +{ + void **pos; + unsigned int hash; + + if (ce->ce_flags & CE_HASHED) + return; + ce->ce_flags |= CE_HASHED; + ce->next = NULL; + hash = hash_name(ce->name, ce_namelen(ce)); + pos = insert_hash(hash, ce, &istate->name_hash); + if (pos) { + ce->next = *pos; + *pos = ce; + } +} + +static void lazy_init_name_hash(struct index_state *istate) +{ + int nr; + + if (istate->name_hash_initialized) + return; + for (nr = 0; nr < istate->cache_nr; nr++) + hash_index_entry(istate, istate->cache[nr]); + istate->name_hash_initialized = 1; +} + +void add_name_hash(struct index_state *istate, struct cache_entry *ce) +{ + ce->ce_flags &= ~CE_UNHASHED; + if (istate->name_hash_initialized) + hash_index_entry(istate, ce); +} + +static int slow_same_name(const char *name1, int len1, const char *name2, int len2) +{ + if (len1 != len2) + return 0; + + while (len1) { + unsigned char c1 = *name1++; + unsigned char c2 = *name2++; + len1--; + if (c1 != c2) { + c1 = toupper(c1); + c2 = toupper(c2); + if (c1 != c2) + return 0; + } + } + return 1; +} + +static int same_name(const struct cache_entry *ce, const char *name, int namelen, int icase) +{ + int len = ce_namelen(ce); + + /* + * Always do exact compare, even if we want a case-ignoring comparison; + * we do the quick exact one first, because it will be the common case. + */ + if (len == namelen && !cache_name_compare(name, namelen, ce->name, len)) + return 1; + + return icase && slow_same_name(name, namelen, ce->name, len); +} + +struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int icase) +{ + unsigned int hash = hash_name(name, namelen); + struct cache_entry *ce; + + lazy_init_name_hash(istate); + ce = lookup_hash(hash, &istate->name_hash); + + while (ce) { + if (!(ce->ce_flags & CE_UNHASHED)) { + if (same_name(ce, name, namelen, icase)) + return ce; + } + ce = ce->next; + } + return NULL; +} diff --git a/read-cache.c b/read-cache.c index c3692f41a..0382804e7 100644 --- a/read-cache.c +++ b/read-cache.c @@ -23,80 +23,21 @@ struct index_state the_index; -static unsigned int hash_name(const char *name, int namelen) -{ - unsigned int hash = 0x123; - - do { - unsigned char c = *name++; - hash = hash*101 + c; - } while (--namelen); - return hash; -} - -static void hash_index_entry(struct index_state *istate, struct cache_entry *ce) -{ - void **pos; - unsigned int hash; - - if (ce->ce_flags & CE_HASHED) - return; - ce->ce_flags |= CE_HASHED; - ce->next = NULL; - hash = hash_name(ce->name, ce_namelen(ce)); - pos = insert_hash(hash, ce, &istate->name_hash); - if (pos) { - ce->next = *pos; - *pos = ce; - } -} - -static void lazy_init_name_hash(struct index_state *istate) -{ - int nr; - - if (istate->name_hash_initialized) - return; - for (nr = 0; nr < istate->cache_nr; nr++) - hash_index_entry(istate, istate->cache[nr]); - istate->name_hash_initialized = 1; -} - static void set_index_entry(struct index_state *istate, int nr, struct cache_entry *ce) { - ce->ce_flags &= ~CE_UNHASHED; istate->cache[nr] = ce; - if (istate->name_hash_initialized) - hash_index_entry(istate, ce); + add_name_hash(istate, ce); } static void replace_index_entry(struct index_state *istate, int nr, struct cache_entry *ce) { struct cache_entry *old = istate->cache[nr]; - remove_index_entry(old); + remove_name_hash(old); set_index_entry(istate, nr, ce); istate->cache_changed = 1; } -int index_name_exists(struct index_state *istate, const char *name, int namelen) -{ - unsigned int hash = hash_name(name, namelen); - struct cache_entry *ce; - - lazy_init_name_hash(istate); - ce = lookup_hash(hash, &istate->name_hash); - - while (ce) { - if (!(ce->ce_flags & CE_UNHASHED)) { - if (!cache_name_compare(name, namelen, ce->name, ce->ce_flags)) - return 1; - } - ce = ce->next; - } - return 0; -} - /* * This only updates the "non-critical" parts of the directory * cache, ie the parts that aren't tracked by GIT, and only used @@ -257,7 +198,8 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st) static int is_racy_timestamp(const struct index_state *istate, struct cache_entry *ce) { - return (istate->timestamp && + return (!S_ISGITLINK(ce->ce_mode) && + istate->timestamp && ((unsigned int)istate->timestamp) <= ce->ce_mtime); } @@ -438,7 +380,7 @@ int remove_index_entry_at(struct index_state *istate, int pos) { struct cache_entry *ce = istate->cache[pos]; - remove_index_entry(ce); + remove_name_hash(ce); istate->cache_changed = 1; istate->cache_nr--; if (pos >= istate->cache_nr) @@ -488,21 +430,50 @@ static int index_name_pos_also_unmerged(struct index_state *istate, return pos; } -int add_file_to_index(struct index_state *istate, const char *path, int verbose) +static int different_name(struct cache_entry *ce, struct cache_entry *alias) { - int size, namelen, pos; - struct stat st; - struct cache_entry *ce; - unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY; + int len = ce_namelen(ce); + return ce_namelen(alias) != len || memcmp(ce->name, alias->name, len); +} - if (lstat(path, &st)) - die("%s: unable to stat (%s)", path, strerror(errno)); +/* + * If we add a filename that aliases in the cache, we will use the + * name that we already have - but we don't want to update the same + * alias twice, because that implies that there were actually two + * different files with aliasing names! + * + * So we use the CE_ADDED flag to verify that the alias was an old + * one before we accept it as + */ +static struct cache_entry *create_alias_ce(struct cache_entry *ce, struct cache_entry *alias) +{ + int len; + struct cache_entry *new; + + if (alias->ce_flags & CE_ADDED) + die("Will not add file alias '%s' ('%s' already exists in index)", ce->name, alias->name); + + /* Ok, create the new entry using the name of the existing alias */ + len = ce_namelen(alias); + new = xcalloc(1, cache_entry_size(len)); + memcpy(new->name, alias->name, len); + copy_cache_entry(new, ce); + free(ce); + return new; +} + +int add_to_index(struct index_state *istate, const char *path, struct stat *st, int verbose) +{ + int size, namelen; + mode_t st_mode = st->st_mode; + struct cache_entry *ce, *alias; + unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY; - if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode) && !S_ISDIR(st.st_mode)) + if (!S_ISREG(st_mode) && !S_ISLNK(st_mode) && !S_ISDIR(st_mode)) die("%s: can only add regular files, symbolic links or git-directories", path); namelen = strlen(path); - if (S_ISDIR(st.st_mode)) { + if (S_ISDIR(st_mode)) { while (namelen && path[namelen-1] == '/') namelen--; } @@ -510,10 +481,10 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose) ce = xcalloc(1, size); memcpy(ce->name, path, namelen); ce->ce_flags = namelen; - fill_stat_cache_info(ce, &st); + fill_stat_cache_info(ce, st); if (trust_executable_bit && has_symlinks) - ce->ce_mode = create_ce_mode(st.st_mode); + ce->ce_mode = create_ce_mode(st_mode); else { /* If there is an existing entry, pick the mode bits and type * from it, otherwise assume unexecutable regular file. @@ -522,21 +493,22 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose) int pos = index_name_pos_also_unmerged(istate, path, namelen); ent = (0 <= pos) ? istate->cache[pos] : NULL; - ce->ce_mode = ce_mode_from_stat(ent, st.st_mode); + ce->ce_mode = ce_mode_from_stat(ent, st_mode); } - pos = index_name_pos(istate, ce->name, namelen); - if (0 <= pos && - !ce_stage(istate->cache[pos]) && - !ie_match_stat(istate, istate->cache[pos], &st, ce_option)) { + alias = index_name_exists(istate, ce->name, ce_namelen(ce), ignore_case); + if (alias && !ce_stage(alias) && !ie_match_stat(istate, alias, st, ce_option)) { /* Nothing changed, really */ free(ce); - ce_mark_uptodate(istate->cache[pos]); + ce_mark_uptodate(alias); + alias->ce_flags |= CE_ADDED; return 0; } - - if (index_path(ce->sha1, path, &st, 1)) + if (index_path(ce->sha1, path, st, 1)) die("unable to index file %s", path); + if (ignore_case && alias && different_name(ce, alias)) + ce = create_alias_ce(ce, alias); + ce->ce_flags |= CE_ADDED; if (add_index_entry(istate, ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE)) die("unable to add %s to index",path); if (verbose) @@ -544,6 +516,14 @@ int add_file_to_index(struct index_state *istate, const char *path, int verbose) return 0; } +int add_file_to_index(struct index_state *istate, const char *path, int verbose) +{ + struct stat st; + if (lstat(path, &st)) + die("%s: unable to stat (%s)", path, strerror(errno)); + return add_to_index(istate, path, &st, verbose); +} + struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh) diff --git a/symlinks.c b/symlinks.c index be9ace6c0..5a5e781a1 100644 --- a/symlinks.c +++ b/symlinks.c @@ -1,48 +1,64 @@ #include "cache.h" -int has_symlink_leading_path(const char *name, char *last_symlink) -{ +struct pathname { + int len; char path[PATH_MAX]; - const char *sp, *ep; - char *dp; - - sp = name; - dp = path; - - if (last_symlink && *last_symlink) { - size_t last_len = strlen(last_symlink); - size_t len = strlen(name); - if (last_len < len && - !strncmp(name, last_symlink, last_len) && - name[last_len] == '/') - return 1; - *last_symlink = '\0'; +}; + +/* Return matching pathname prefix length, or zero if not matching */ +static inline int match_pathname(int len, const char *name, struct pathname *match) +{ + int match_len = match->len; + return (len > match_len && + name[match_len] == '/' && + !memcmp(name, match->path, match_len)) ? match_len : 0; +} + +static inline void set_pathname(int len, const char *name, struct pathname *match) +{ + if (len < PATH_MAX) { + match->len = len; + memcpy(match->path, name, len); + match->path[len] = 0; } +} + +int has_symlink_leading_path(int len, const char *name) +{ + static struct pathname link, nonlink; + char path[PATH_MAX]; + struct stat st; + char *sp; + int known_dir; - while (1) { - size_t len; - struct stat st; + /* + * See if the last known symlink cache matches. + */ + if (match_pathname(len, name, &link)) + return 1; - ep = strchr(sp, '/'); - if (!ep) - break; - len = ep - sp; - if (PATH_MAX <= dp + len - path + 2) - return 0; /* new name is longer than that??? */ - memcpy(dp, sp, len); - dp[len] = 0; + /* + * Get rid of the last known directory part + */ + known_dir = match_pathname(len, name, &nonlink); + + while ((sp = strchr(name + known_dir + 1, '/')) != NULL) { + int thislen = sp - name ; + memcpy(path, name, thislen); + path[thislen] = 0; if (lstat(path, &st)) return 0; + if (S_ISDIR(st.st_mode)) { + set_pathname(thislen, path, &nonlink); + known_dir = thislen; + continue; + } if (S_ISLNK(st.st_mode)) { - if (last_symlink) - strcpy(last_symlink, path); + set_pathname(thislen, path, &link); return 1; } - - dp[len++] = '/'; - dp = dp + len; - sp = ep + 1; + break; } return 0; } diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh index 1fd3fb74d..ba6679c6e 100755 --- a/t/t4027-diff-submodule.sh +++ b/t/t4027-diff-submodule.sh @@ -50,4 +50,11 @@ test_expect_success 'git diff-files --raw' ' test_cmp expect actual.files ' +test_expect_success 'git diff (empty submodule dir)' ' + : >empty && + rm -rf sub/* sub/.git && + git diff > actual.empty && + test_cmp empty actual.empty +' + test_done diff --git a/t/t7506-status-submodule.sh b/t/t7506-status-submodule.sh new file mode 100755 index 000000000..a75130cdb --- /dev/null +++ b/t/t7506-status-submodule.sh @@ -0,0 +1,38 @@ +#!/bin/sh + +test_description='git-status for submodule' + +. ./test-lib.sh + +test_expect_success 'setup' ' + test_create_repo sub + cd sub && + : >bar && + git add bar && + git commit -m " Add bar" && + cd .. && + git add sub && + git commit -m "Add submodule sub" +' + +test_expect_success 'status clean' ' + git status | + grep "nothing to commit" +' +test_expect_success 'status -a clean' ' + git status -a | + grep "nothing to commit" +' +test_expect_success 'rm submodule contents' ' + rm -rf sub/* sub/.git +' +test_expect_success 'status clean (empty submodule dir)' ' + git status | + grep "nothing to commit" +' +test_expect_success 'status -a clean (empty submodule dir)' ' + git status -a | + grep "nothing to commit" +' + +test_done diff --git a/unpack-trees.c b/unpack-trees.c index a59f47557..1ab28fda4 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -26,11 +26,12 @@ static void add_entry(struct unpack_trees_options *o, struct cache_entry *ce, * directories, in case this unlink is the removal of the * last entry in the directory -- empty directories are removed. */ -static void unlink_entry(char *name, char *last_symlink) +static void unlink_entry(struct cache_entry *ce) { char *cp, *prev; + char *name = ce->name; - if (has_symlink_leading_path(name, last_symlink)) + if (has_symlink_leading_path(ce_namelen(ce), ce->name)) return; if (unlink(name)) return; @@ -58,7 +59,6 @@ static int check_updates(struct unpack_trees_options *o) { unsigned cnt = 0, total = 0; struct progress *progress = NULL; - char last_symlink[PATH_MAX]; struct index_state *index = &o->result; int i; int errs = 0; @@ -75,24 +75,27 @@ static int check_updates(struct unpack_trees_options *o) cnt = 0; } - *last_symlink = '\0'; for (i = 0; i < index->cache_nr; i++) { struct cache_entry *ce = index->cache[i]; - if (ce->ce_flags & (CE_UPDATE | CE_REMOVE)) - display_progress(progress, ++cnt); if (ce->ce_flags & CE_REMOVE) { + display_progress(progress, ++cnt); if (o->update) - unlink_entry(ce->name, last_symlink); + unlink_entry(ce); remove_index_entry_at(&o->result, i); i--; continue; } + } + + for (i = 0; i < index->cache_nr; i++) { + struct cache_entry *ce = index->cache[i]; + if (ce->ce_flags & CE_UPDATE) { + display_progress(progress, ++cnt); ce->ce_flags &= ~CE_UPDATE; if (o->update) { errs |= checkout_entry(ce, &state, NULL); - *last_symlink = '\0'; } } } @@ -521,6 +524,22 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action, } /* + * This gets called when there was no index entry for the tree entry 'dst', + * but we found a file in the working tree that 'lstat()' said was fine, + * and we're on a case-insensitive filesystem. + * + * See if we can find a case-insensitive match in the index that also + * matches the stat information, and assume it's that other file! + */ +static int icase_exists(struct unpack_trees_options *o, struct cache_entry *dst, struct stat *st) +{ + struct cache_entry *src; + + src = index_name_exists(o->src_index, dst->name, ce_namelen(dst), 1); + return src && !ie_match_stat(o->src_index, src, st, CE_MATCH_IGNORE_VALID); +} + +/* * We do not want to remove or overwrite a working tree file that * is not tracked, unless it is ignored. */ @@ -532,12 +551,23 @@ static int verify_absent(struct cache_entry *ce, const char *action, if (o->index_only || o->reset || !o->update) return 0; - if (has_symlink_leading_path(ce->name, NULL)) + if (has_symlink_leading_path(ce_namelen(ce), ce->name)) return 0; if (!lstat(ce->name, &st)) { int cnt; int dtype = ce_to_dtype(ce); + struct cache_entry *result; + + /* + * It may be that the 'lstat()' succeeded even though + * target 'ce' was absent, because there is an old + * entry that is different only in case.. + * + * Ignore that lstat() if it matches. + */ + if (ignore_case && icase_exists(o, ce, &st)) + return 0; if (o->dir && excluded(o->dir, ce->name, &dtype)) /* @@ -581,10 +611,9 @@ static int verify_absent(struct cache_entry *ce, const char *action, * delete this path, which is in a subdirectory that * is being replaced with a blob. */ - cnt = index_name_pos(&o->result, ce->name, strlen(ce->name)); - if (0 <= cnt) { - struct cache_entry *ce = o->result.cache[cnt]; - if (ce->ce_flags & CE_REMOVE) + result = index_name_exists(&o->result, ce->name, ce_namelen(ce), 0); + if (result) { + if (result->ce_flags & CE_REMOVE) return 0; } diff --git a/unpack-trees.h b/unpack-trees.h index 50453ed20..d436d6ced 100644 --- a/unpack-trees.h +++ b/unpack-trees.h @@ -9,16 +9,16 @@ typedef int (*merge_fn_t)(struct cache_entry **src, struct unpack_trees_options *options); struct unpack_trees_options { - int reset; - int merge; - int update; - int index_only; - int nontrivial_merge; - int trivial_merges_only; - int verbose_update; - int aggressive; - int skip_unmerged; - int gently; + unsigned int reset:1, + merge:1, + update:1, + index_only:1, + nontrivial_merge:1, + trivial_merges_only:1, + verbose_update:1, + aggressive:1, + skip_unmerged:1, + gently:1; const char *prefix; int pos; struct dir_struct *dir; @@ -31,7 +31,7 @@ struct unpack_trees_options { void *unpack_data; struct index_state *dst_index; - const struct index_state *src_index; + struct index_state *src_index; struct index_state result; }; |