void git_deflate_init(git_zstream *, int level);
void git_deflate_init_gzip(git_zstream *, int level);
+void git_deflate_init_raw(git_zstream *, int level);
void git_deflate_end(git_zstream *);
int git_deflate_abort(git_zstream *);
int git_deflate_end_gently(git_zstream *);
unsigned int ce_namelen;
unsigned char sha1[20];
struct cache_entry *next;
- struct cache_entry *dir_next;
char name[FLEX_ARRAY]; /* more */
};
unsigned name_hash_initialized : 1,
initialized : 1;
struct hash_table name_hash;
+ struct hash_table dir_hash;
};
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;
- }
+ extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce);
+ extern void free_name_hash(struct index_state *istate);
#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
OBJ_BLOB;
}
+/* Double-check local_repo_env below if you add to this list. */
#define GIT_DIR_ENVIRONMENT "GIT_DIR"
#define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
+#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
#define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
#define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
#define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
+#define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS"
/*
- * Repository-local GIT_* environment variables
- * The array is NULL-terminated to simplify its usage in contexts such
- * environment creation or simple walk of the list.
- * The number of non-NULL entries is available as a macro.
+ * This environment variable is expected to contain a boolean indicating
+ * whether we should or should not treat:
+ *
+ * GIT_DIR=foo.git git ...
+ *
+ * as if GIT_WORK_TREE=. was given. It's not expected that users will make use
+ * of this, but we use it internally to communicate to sub-processes that we
+ * are in a bare repo. If not set, defaults to true.
+ */
+#define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE"
+
+/*
+ * Repository-local GIT_* environment variables; these will be cleared
+ * when git spawns a sub-process that runs inside another repository.
+ * The array is NULL-terminated, which makes it easy to pass in the "env"
+ * parameter of a run-command invocation, or to do a simple walk.
*/
-#define LOCAL_REPO_ENV_SIZE 9
-extern const char *const local_repo_env[LOCAL_REPO_ENV_SIZE + 1];
+extern const char * const local_repo_env[];
extern int is_bare_repository_cfg;
extern int is_bare_repository(void);
extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
+#define PATHSPEC_ONESTAR 1 /* the pathspec pattern sastisfies GFNM_ONESTAR */
+
struct pathspec {
const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
int nr;
struct pathspec_item {
const char *match;
int len;
- unsigned int use_wildcard:1;
+ int nowildcard_len;
+ int flags;
} *items;
};
extern void free_pathspec(struct pathspec *);
extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
+extern int limit_pathspec_to_literal(void);
+
#define HASH_WRITE_OBJECT 1
#define HASH_FORMAT_CHECK 2
extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int trust_ctime;
+extern int check_stat;
extern int quote_path_fully;
extern int has_symlinks;
extern int minimum_abbrev, default_abbrev;
extern int core_apply_sparse_checkout;
extern int precomposed_unicode;
+/*
+ * The character that begins a commented line in user-editable file
+ * that is subject to stripspace.
+ */
+extern char comment_line_char;
+
enum branch_track {
BRANCH_TRACK_UNSPECIFIED = -1,
BRANCH_TRACK_NEVER = 0,
}
int is_directory(const char *);
const char *real_path(const char *path);
+const char *real_path_if_valid(const char *path);
const char *absolute_path(const char *path);
const char *relative_path(const char *abs, const char *base);
int normalize_path_copy(char *dst, const char *src);
-int longest_ancestor_length(const char *path, const char *prefix_list);
+int longest_ancestor_length(const char *path, struct string_list *prefixes);
char *strip_path_suffix(const char *path, const char *suffix);
int daemon_avoid_alias(const char *path);
int offset_1st_component(const char *path);
unsigned char old_sha1[20];
unsigned char new_sha1[20];
char *symref;
- unsigned int force:1,
+ unsigned int
+ force:1,
+ forced_update:1,
merge:1,
- nonfastforward:1,
- deletion:1;
+ deletion:1,
+ matched:1;
enum {
REF_STATUS_NONE = 0,
REF_STATUS_OK,
REF_STATUS_REJECT_NONFASTFORWARD,
+ REF_STATUS_REJECT_ALREADY_EXISTS,
REF_STATUS_REJECT_NODELETE,
+ REF_STATUS_REJECT_FETCH_FIRST,
+ REF_STATUS_REJECT_NEEDS_FORCE,
REF_STATUS_UPTODATE,
REF_STATUS_REMOTE_REJECT,
REF_STATUS_EXPECTING_REPORT
int nr, alloc;
unsigned char (*array)[20];
};
-extern struct ref **get_remote_heads(int in, struct ref **list, unsigned int flags, struct extra_have_objects *);
+extern struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
+ struct ref **list, unsigned int flags,
+ struct extra_have_objects *);
extern int server_supports(const char *feature);
extern int parse_feature_request(const char *features, const char *feature);
extern const char *server_feature_value(const char *feature, int *len_ret);
extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
+/* A hook for count-objects to report invalid files in pack directory */
+extern void (*report_garbage)(const char *desc, const char *path);
+
extern void prepare_packed_git(void);
extern void reprepare_packed_git(void);
extern void install_packed_git(struct packed_git *pack);
extern int git_env_bool(const char *, int);
extern int git_config_system(void);
extern int config_error_nonbool(const char *);
+#if defined(__GNUC__) && ! defined(__clang__)
+#define config_error_nonbool(s) (config_error_nonbool(s), -1)
+#endif
extern const char *get_log_output_encoding(void);
extern const char *get_commit_output_encoding(void);
#define CONFIG_INCLUDE_INIT { 0 }
extern int git_config_include(const char *name, const char *value, void *data);
-#define IDENT_NAME_GIVEN 01
-#define IDENT_MAIL_GIVEN 02
-#define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
-extern int user_ident_explicitly_given;
-extern int user_ident_sufficiently_given(void);
+/*
+ * Match and parse a config key of the form:
+ *
+ * section.(subsection.)?key
+ *
+ * (i.e., what gets handed to a config_fn_t). The caller provides the section;
+ * we return -1 if it does not match, 0 otherwise. The subsection and key
+ * out-parameters are filled by the function (and subsection is NULL if it is
+ * missing).
+ */
+extern int parse_config_key(const char *var,
+ const char *section,
+ const char **subsection, int *subsection_len,
+ const char **key);
+
+extern int committer_ident_sufficiently_given(void);
+extern int author_ident_sufficiently_given(void);
extern const char *git_commit_encoding;
extern const char *git_log_output_encoding;
extern const char *git_mailmap_file;
+extern const char *git_mailmap_blob;
/* IO helper functions */
extern void maybe_flush_or_die(FILE *, const char *);
extern int pager_use_color;
extern int term_columns(void);
extern int decimal_width(int);
+extern int check_pager_config(const char *cmd);
extern const char *editor_program;
extern const char *askpass_program;
};
extern struct startup_info *startup_info;
-/* builtin/merge.c */
-int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
+/* merge.c */
+struct commit_list;
+int try_merge_command(const char *strategy, size_t xopts_nr,
+ const char **xopts, struct commit_list *common,
+ const char *head_arg, struct commit_list *remotes);
+int checkout_fast_forward(const unsigned char *from,
+ const unsigned char *to,
+ int overwrite_ignore);
+
int sane_execvp(const char *file, char *const argv[]);
{
unsigned int hash = 0x123;
- do {
+ while (namelen--) {
unsigned char c = *name++;
c = icase_hash(c);
hash = hash*101 + c;
- } while (--namelen);
+ }
return hash;
}
- static void hash_index_entry_directories(struct index_state *istate, struct cache_entry *ce)
+ struct dir_entry {
+ struct dir_entry *next;
+ struct dir_entry *parent;
+ struct cache_entry *ce;
+ int nr;
+ unsigned int namelen;
+ };
+
+ static struct dir_entry *find_dir_entry(struct index_state *istate,
+ const char *name, unsigned int namelen)
+ {
+ unsigned int hash = hash_name(name, namelen);
+ struct dir_entry *dir;
+
+ for (dir = lookup_hash(hash, &istate->dir_hash); dir; dir = dir->next)
+ if (dir->namelen == namelen &&
+ !strncasecmp(dir->ce->name, name, namelen))
+ return dir;
+ return NULL;
+ }
+
+ static struct dir_entry *hash_dir_entry(struct index_state *istate,
+ struct cache_entry *ce, int namelen)
{
/*
* Throw each directory component in the hash for quick lookup
* during a git status. Directory components are stored with their
* closing slash. Despite submodules being a directory, they never
* reach this point, because they are stored without a closing slash
- * in the cache.
+ * in index_state.name_hash (as ordinary cache_entries).
*
- * Note that the cache_entry stored with the directory does not
- * represent the directory itself. It is a pointer to an existing
- * filename, and its only purpose is to represent existence of the
- * directory in the cache. It is very possible multiple directory
- * hash entries may point to the same cache_entry.
+ * Note that the cache_entry stored with the dir_entry merely
+ * supplies the name of the directory (up to dir_entry.namelen). We
+ * track the number of 'active' files in a directory in dir_entry.nr,
+ * so we can tell if the directory is still relevant, e.g. for git
+ * status. However, if cache_entries are removed, we cannot pinpoint
+ * an exact cache_entry that's still active. It is very possible that
+ * multiple dir_entries point to the same cache_entry.
*/
- unsigned int hash;
- void **pos;
+ struct dir_entry *dir;
+
+ /* get length of parent directory */
+ while (namelen > 0 && !is_dir_sep(ce->name[namelen - 1]))
+ namelen--;
+ if (namelen <= 0)
+ return NULL;
+
+ /* lookup existing entry for that directory */
+ dir = find_dir_entry(istate, ce->name, namelen);
+ if (!dir) {
+ /* not found, create it and add to hash table */
+ void **pdir;
+ unsigned int hash = hash_name(ce->name, namelen);
- const char *ptr = ce->name;
- while (*ptr) {
- while (*ptr && *ptr != '/')
- ++ptr;
- if (*ptr == '/') {
- ++ptr;
- hash = hash_name(ce->name, ptr - ce->name);
- pos = insert_hash(hash, ce, &istate->name_hash);
- if (pos) {
- ce->dir_next = *pos;
- *pos = ce;
- }
+ dir = xcalloc(1, sizeof(struct dir_entry));
+ dir->namelen = namelen;
+ dir->ce = ce;
+
+ pdir = insert_hash(hash, dir, &istate->dir_hash);
+ if (pdir) {
+ dir->next = *pdir;
+ *pdir = dir;
}
+
+ /* recursively add missing parent directories */
+ dir->parent = hash_dir_entry(istate, ce, namelen - 1);
}
+ return dir;
+ }
+
+ static void add_dir_entry(struct index_state *istate, struct cache_entry *ce)
+ {
+ /* Add reference to the directory entry (and parents if 0). */
+ struct dir_entry *dir = hash_dir_entry(istate, ce, ce_namelen(ce));
+ while (dir && !(dir->nr++))
+ dir = dir->parent;
+ }
+
+ static void remove_dir_entry(struct index_state *istate, struct cache_entry *ce)
+ {
+ /*
+ * Release reference to the directory entry (and parents if 0).
+ *
+ * Note: we do not remove / free the entry because there's no
+ * hash.[ch]::remove_hash and dir->next may point to other entries
+ * that are still valid, so we must not free the memory.
+ */
+ struct dir_entry *dir = hash_dir_entry(istate, ce, ce_namelen(ce));
+ while (dir && dir->nr && !(--dir->nr))
+ dir = dir->parent;
}
static void hash_index_entry(struct index_state *istate, struct cache_entry *ce)
if (ce->ce_flags & CE_HASHED)
return;
ce->ce_flags |= CE_HASHED;
- ce->next = ce->dir_next = NULL;
+ ce->next = NULL;
hash = hash_name(ce->name, ce_namelen(ce));
pos = insert_hash(hash, ce, &istate->name_hash);
if (pos) {
*pos = ce;
}
- if (ignore_case)
- hash_index_entry_directories(istate, ce);
+ if (ignore_case && !(ce->ce_flags & CE_UNHASHED))
+ add_dir_entry(istate, ce);
}
static void lazy_init_name_hash(struct index_state *istate)
if (istate->name_hash_initialized)
return;
+ if (istate->cache_nr)
+ preallocate_hash(&istate->name_hash, istate->cache_nr);
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)
{
+ /* if already hashed, add reference to directory entries */
+ if (ignore_case && (ce->ce_flags & CE_STATE_MASK) == CE_STATE_MASK)
+ add_dir_entry(istate, ce);
+
ce->ce_flags &= ~CE_UNHASHED;
if (istate->name_hash_initialized)
hash_index_entry(istate, 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.
+ */
+ void remove_name_hash(struct index_state *istate, struct cache_entry *ce)
+ {
+ /* if already hashed, release reference to directory entries */
+ if (ignore_case && (ce->ce_flags & CE_STATE_MASK) == CE_HASHED)
+ remove_dir_entry(istate, ce);
+
+ ce->ce_flags |= CE_UNHASHED;
+ }
+
static int slow_same_name(const char *name1, int len1, const char *name2, int len2)
{
if (len1 != len2)
if (!icase)
return 0;
- /*
- * If the entry we're comparing is a filename (no trailing slash), then compare
- * the lengths exactly.
- */
- if (name[namelen - 1] != '/')
- return slow_same_name(name, namelen, ce->name, len);
-
- /*
- * For a directory, we point to an arbitrary cache_entry filename. Just
- * make sure the directory portion matches.
- */
- return slow_same_name(name, namelen, ce->name, namelen < len ? namelen : len);
+ return 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)
if (same_name(ce, name, namelen, icase))
return ce;
}
- if (icase && name[namelen - 1] == '/')
- ce = ce->dir_next;
- else
- ce = ce->next;
+ ce = ce->next;
}
/*
- * Might be a submodule. Despite submodules being directories,
+ * When looking for a directory (trailing '/'), it might be a
+ * submodule or a directory. Despite submodules being directories,
* they are stored in the name hash without a closing slash.
- * When ignore_case is 1, directories are stored in the name hash
- * with their closing slash.
+ * When ignore_case is 1, directories are stored in a separate hash
+ * table *with* their closing slash.
*
* The side effect of this storage technique is we have need to
+ * lookup the directory in a separate hash table, and if not found
* remove the slash from name and perform the lookup again without
* the slash. If a match is made, S_ISGITLINK(ce->mode) will be
* true.
*/
if (icase && name[namelen - 1] == '/') {
+ struct dir_entry *dir = find_dir_entry(istate, name, namelen);
+ if (dir && dir->nr)
+ return dir->ce;
+
ce = index_name_exists(istate, name, namelen - 1, icase);
if (ce && S_ISGITLINK(ce->ce_mode))
return ce;
}
return NULL;
}
+
+ static int free_dir_entry(void *entry, void *unused)
+ {
+ struct dir_entry *dir = entry;
+ while (dir) {
+ struct dir_entry *next = dir->next;
+ free(dir);
+ dir = next;
+ }
+ return 0;
+ }
+
+ void free_name_hash(struct index_state *istate)
+ {
+ if (!istate->name_hash_initialized)
+ return;
+ istate->name_hash_initialized = 0;
+ if (ignore_case)
+ /* free directory entries */
+ for_each_hash(&istate->dir_hash, free_dir_entry, NULL);
+
+ free_hash(&istate->name_hash);
+ free_hash(&istate->dir_hash);
+ }
{
struct cache_entry *old = istate->cache[nr];
- remove_name_hash(old);
+ remove_name_hash(istate, old);
set_index_entry(istate, nr, ce);
istate->cache_changed = 1;
}
}
if (ce->ce_mtime.sec != (unsigned int)st->st_mtime)
changed |= MTIME_CHANGED;
- if (trust_ctime && ce->ce_ctime.sec != (unsigned int)st->st_ctime)
+ if (trust_ctime && check_stat &&
+ ce->ce_ctime.sec != (unsigned int)st->st_ctime)
changed |= CTIME_CHANGED;
#ifdef USE_NSEC
- if (ce->ce_mtime.nsec != ST_MTIME_NSEC(*st))
+ if (check_stat && ce->ce_mtime.nsec != ST_MTIME_NSEC(*st))
changed |= MTIME_CHANGED;
- if (trust_ctime && ce->ce_ctime.nsec != ST_CTIME_NSEC(*st))
+ if (trust_ctime && check_stat &&
+ ce->ce_ctime.nsec != ST_CTIME_NSEC(*st))
changed |= CTIME_CHANGED;
#endif
- if (ce->ce_uid != (unsigned int) st->st_uid ||
- ce->ce_gid != (unsigned int) st->st_gid)
- changed |= OWNER_CHANGED;
- if (ce->ce_ino != (unsigned int) st->st_ino)
- changed |= INODE_CHANGED;
+ if (check_stat) {
+ if (ce->ce_uid != (unsigned int) st->st_uid ||
+ ce->ce_gid != (unsigned int) st->st_gid)
+ changed |= OWNER_CHANGED;
+ if (ce->ce_ino != (unsigned int) st->st_ino)
+ changed |= INODE_CHANGED;
+ }
#ifdef USE_STDEV
/*
* clients will have different views of what "device"
* the filesystem is on
*/
- if (ce->ce_dev != (unsigned int) st->st_dev)
- changed |= INODE_CHANGED;
+ if (check_stat && ce->ce_dev != (unsigned int) st->st_dev)
+ changed |= INODE_CHANGED;
#endif
if (ce->ce_size != (unsigned int) st->st_size)
struct cache_entry *ce = istate->cache[pos];
record_resolve_undo(istate, ce);
- remove_name_hash(ce);
+ remove_name_hash(istate, ce);
istate->cache_changed = 1;
istate->cache_nr--;
if (pos >= istate->cache_nr)
for (i = j = 0; i < istate->cache_nr; i++) {
if (ce_array[i]->ce_flags & CE_REMOVE)
- remove_name_hash(ce_array[i]);
+ remove_name_hash(istate, ce_array[i]);
else
ce_array[j++] = ce_array[i];
}
if (hdr->hdr_signature != htonl(CACHE_SIGNATURE))
return error("bad signature");
hdr_version = ntohl(hdr->hdr_version);
- if (hdr_version < 2 || 4 < hdr_version)
+ if (hdr_version < INDEX_FORMAT_LB || INDEX_FORMAT_UB < hdr_version)
return error("bad index version %d", hdr_version);
git_SHA1_Init(&c);
git_SHA1_Update(&c, hdr, size - 20);
istate->cache_changed = 0;
istate->timestamp.sec = 0;
istate->timestamp.nsec = 0;
- istate->name_hash_initialized = 0;
- free_hash(&istate->name_hash);
+ free_name_hash(istate);
cache_tree_free(&(istate->cache_tree));
istate->initialized = 0;