#include "advice.h"
#include "gettext.h"
#include "convert.h"
+#include "trace.h"
+#include "string-list.h"
#include "pack-revindex.h"
#include SHA1_HEADER
-#ifndef git_SHA_CTX
-#define git_SHA_CTX SHA_CTX
-#define git_SHA1_Init SHA1_Init
-#define git_SHA1_Update SHA1_Update
-#define git_SHA1_Final SHA1_Final
+#ifndef platform_SHA_CTX
+/*
+ * platform's underlying implementation of SHA-1; could be OpenSSL,
+ * blk_SHA, Apple CommonCrypto, etc... Note that including
+ * SHA1_HEADER may have already defined platform_SHA_CTX for our
+ * own implementations like block-sha1 and ppc-sha1, so we list
+ * the default for OpenSSL compatible SHA-1 implementations here.
+ */
+#define platform_SHA_CTX SHA_CTX
+#define platform_SHA1_Init SHA1_Init
+#define platform_SHA1_Update SHA1_Update
+#define platform_SHA1_Final SHA1_Final
+#endif
+
+#define git_SHA_CTX platform_SHA_CTX
+#define git_SHA1_Init platform_SHA1_Init
+#define git_SHA1_Update platform_SHA1_Update
+#define git_SHA1_Final platform_SHA1_Final
+
+#ifdef SHA1_MAX_BLOCK_SIZE
+#include "compat/sha1-chunked.h"
+#undef git_SHA1_Update
+#define git_SHA1_Update git_SHA1_Update_Chunked
#endif
#include <zlib.h>
int git_deflate(git_zstream *, int flush);
unsigned long git_deflate_bound(git_zstream *, unsigned long);
+/* The length in bytes and in hex digits of an object name (SHA-1 value). */
+#define GIT_SHA1_RAWSZ 20
+#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
+
+struct object_id {
+ unsigned char hash[GIT_SHA1_RAWSZ];
+};
+
#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
#define DTYPE(de) ((de)->d_type)
#else
*
* The value 0160000 is not normally a valid mode, and
* also just happens to be S_IFDIR + S_IFLNK
- *
- * NOTE! We *really* shouldn't depend on the S_IFxxx macros
- * always having the same values everywhere. We should use
- * our internal git values for these things, and then we can
- * translate that to the OS-specific value. It just so
- * happens that everybody shares the same bit representation
- * in the UNIX world (and apparently wider too..)
*/
#define S_IFGITLINK 0160000
#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
+/*
+ * Some mode bits are also used internally for computations.
+ *
+ * They *must* not overlap with any valid modes, and they *must* not be emitted
+ * to outside world - i.e. appear on disk or network. In other words, it's just
+ * temporary fields, which we internally use, but they have to stay in-house.
+ *
+ * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git
+ * codebase mode is `unsigned int` which is assumed to be at least 32 bits )
+ */
+
+/* used internally in tree-diff */
+#define S_DIFFTREE_IFXMIN_NEQ 0x80000000
+
+
/*
* Intensive research over the course of many years has shown that
* port 9418 is totally unused by anything else. Or
unsigned int ce_mode;
unsigned int ce_flags;
unsigned int ce_namelen;
+ unsigned int index; /* for link extension */
unsigned char sha1[20];
char name[FLEX_ARRAY]; /* more */
};
#define CE_STAGESHIFT 12
/*
- * Range 0xFFFF0000 in ce_flags is divided into
+ * Range 0xFFFF0FFF in ce_flags is divided into
* two parts: in-memory flags and on-disk ones.
* Flags in CE_EXTENDED_FLAGS will get saved on-disk
* if you want to save a new flag, add it in
/* used to temporarily mark paths matched by pathspecs */
#define CE_MATCHED (1 << 26)
+#define CE_UPDATE_IN_BASE (1 << 27)
+#define CE_STRIP_NAME (1 << 28)
+
/*
* Extended on-disk flags
*/
#define CE_INTENT_TO_ADD (1 << 29)
#define CE_SKIP_WORKTREE (1 << 30)
/* CE_EXTENDED2 is for future extension */
-#define CE_EXTENDED2 (1 << 31)
+#define CE_EXTENDED2 (1U << 31)
#define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
#define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
+#define ce_intent_to_add(ce) ((ce)->ce_flags & CE_INTENT_TO_ADD)
#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
static inline unsigned int create_ce_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)
+#define RESOLVE_UNDO_CHANGED (1 << 4)
+#define CACHE_TREE_CHANGED (1 << 5)
+#define SPLIT_INDEX_ORDERED (1 << 6)
+#define UNTRACKED_CHANGED (1 << 7)
+
+struct split_index;
+struct untracked_cache;
+
struct index_state {
struct cache_entry **cache;
unsigned int version;
unsigned int cache_nr, cache_alloc, cache_changed;
struct string_list *resolve_undo;
struct cache_tree *cache_tree;
+ struct split_index *split_index;
struct cache_time timestamp;
unsigned name_hash_initialized : 1,
initialized : 1;
struct hashmap name_hash;
struct hashmap dir_hash;
+ unsigned char sha1[20];
+ struct untracked_cache *untracked;
};
extern struct index_state the_index;
#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
#define is_cache_unborn() is_index_unborn(&the_index)
#define read_cache_unmerged() read_index_unmerged(&the_index)
-#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
#define discard_cache() discard_index(&the_index)
#define unmerged_cache() unmerged_index(&the_index)
#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
/* Double-check local_repo_env below if you add to this list. */
#define GIT_DIR_ENVIRONMENT "GIT_DIR"
+#define GIT_COMMON_DIR_ENVIRONMENT "GIT_COMMON_DIR"
#define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
#define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
+#define GIT_REPLACE_REF_BASE_ENVIRONMENT "GIT_REPLACE_REF_BASE"
#define GITATTRIBUTES_FILE ".gitattributes"
#define INFOATTRIBUTES_FILE "info/attributes"
#define ATTRIBUTE_MACRO_PREFIX "[attr]"
extern char *git_work_tree_cfg;
extern int is_inside_work_tree(void);
extern const char *get_git_dir(void);
-extern int is_git_directory(const char *path);
+extern const char *get_git_common_dir(void);
extern char *get_object_directory(void);
extern char *get_index_file(void);
extern char *get_graft_file(void);
extern int set_git_dir(const char *path);
+extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir);
+extern int get_common_dir(struct strbuf *sb, const char *gitdir);
extern const char *get_git_namespace(void);
extern const char *strip_namespace(const char *namespaced_ref);
extern const char *get_git_work_tree(void);
-extern const char *read_gitfile(const char *path);
+
+/*
+ * Return true if the given path is a git directory; note that this _just_
+ * looks at the directory itself. If you want to know whether "foo/.git"
+ * is a repository, you must feed that path, not just "foo".
+ */
+extern int is_git_directory(const char *path);
+
+/*
+ * Return 1 if the given path is the root of a git repository or
+ * submodule, else 0. Will not return 1 for bare repositories with the
+ * exception of creating a bare repository in "foo/.git" and calling
+ * is_git_repository("foo").
+ *
+ * If we run into read errors, we err on the side of saying "yes, it is",
+ * as we usually consider sub-repos precious, and would prefer to err on the
+ * side of not disrupting or deleting them.
+ */
+extern int is_nonbare_repository_dir(struct strbuf *path);
+
+#define READ_GITFILE_ERR_STAT_FAILED 1
+#define READ_GITFILE_ERR_NOT_A_FILE 2
+#define READ_GITFILE_ERR_OPEN_FAILED 3
+#define READ_GITFILE_ERR_READ_FAILED 4
+#define READ_GITFILE_ERR_INVALID_FORMAT 5
+#define READ_GITFILE_ERR_NO_PATH 6
+#define READ_GITFILE_ERR_NOT_A_REPO 7
+#define READ_GITFILE_ERR_TOO_LARGE 8
+extern const char *read_gitfile_gently(const char *path, int *return_error_code);
+#define read_gitfile(path) read_gitfile_gently((path), NULL)
extern const char *resolve_gitdir(const char *suspect);
extern void set_git_work_tree(const char *tree);
alloc = (nr); \
else \
alloc = alloc_nr(alloc); \
- x = xrealloc((x), alloc * sizeof(*(x))); \
+ REALLOC_ARRAY(x, alloc); \
} \
} while (0)
/* Initialize and use the cache information */
+struct lock_file;
extern int read_index(struct index_state *);
extern int read_index_preload(struct index_state *, const struct pathspec *pathspec);
+extern int do_read_index(struct index_state *istate, const char *path,
+ int must_exist); /* for testting only! */
extern int read_index_from(struct index_state *, const char *path);
extern int is_index_unborn(struct index_state *);
extern int read_index_unmerged(struct index_state *);
-extern int write_index(struct index_state *, int newfd);
+#define COMMIT_LOCK (1 << 0)
+#define CLOSE_LOCK (1 << 1)
+extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
extern int discard_index(struct index_state *);
extern int unmerged_index(const struct index_state *);
extern int verify_path(const char *path);
-extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen);
+extern int index_dir_exists(struct index_state *istate, const char *name, int namelen);
+extern void adjust_dirname_case(struct index_state *istate, char *name);
extern struct cache_entry *index_file_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_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
+#define ADD_CACHE_KEEP_CACHE_TREE 32 /* Do not invalidate cache-tree */
extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
extern int remove_index_entry_at(struct index_state *, int pos);
* INODE_CHANGED, and DATA_CHANGED.
*/
extern int match_stat_data(const struct stat_data *sd, struct stat *st);
+extern int match_stat_data_racy(const struct index_state *istate,
+ const struct stat_data *sd, struct stat *st);
extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
#define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg);
-struct lock_file {
- struct lock_file *next;
- int fd;
- pid_t owner;
- char on_list;
- char filename[PATH_MAX];
-};
-#define LOCK_DIE_ON_ERROR 1
-#define LOCK_NODEREF 2
-extern int unable_to_lock_error(const char *path, int err);
-extern NORETURN void unable_to_lock_index_die(const char *path, int err);
-extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
-extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
-extern int commit_lock_file(struct lock_file *);
extern void update_index_if_able(struct index_state *, struct lock_file *);
extern int hold_locked_index(struct lock_file *, int);
-extern int commit_locked_index(struct lock_file *);
extern void set_alternate_index_output(const char *);
-extern int close_lock_file(struct lock_file *);
-extern void rollback_lock_file(struct lock_file *);
-extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
* been sought but there were none.
*/
extern int check_replace_refs;
+extern char *git_replace_ref_base;
extern int fsync_object_files;
extern int core_preload_index;
extern int core_apply_sparse_checkout;
extern int precomposed_unicode;
+extern int protect_hfs;
+extern int protect_ntfs;
+extern int git_db_env, git_index_env, git_graft_env, git_common_dir_env;
+
+/*
+ * Include broken refs in all ref iterations, which will
+ * generally choke dangerous operations rather than letting
+ * them silently proceed without taking the broken ref into
+ * account.
+ */
+extern int ref_paranoia;
/*
* The character that begins a commented line in user-editable file
* that is subject to stripspace.
*/
extern char comment_line_char;
+extern int auto_comment_line_char;
enum branch_track {
BRANCH_TRACK_UNSPECIFIED = -1,
extern int grafts_replace_parents;
+/*
+ * GIT_REPO_VERSION is the version we write by default. The
+ * _READ variant is the highest number we know how to
+ * handle.
+ */
#define GIT_REPO_VERSION 0
+#define GIT_REPO_VERSION_READ 1
extern int repository_format_version;
+extern int repository_format_precious_objects;
extern int check_repository_format(void);
#define MTIME_CHANGED 0x0001
#define DATA_CHANGED 0x0020
#define TYPE_CHANGED 0x0040
+/*
+ * Return a statically allocated filename, either generically (mkpath), in
+ * the repository directory (git_path), or in a submodule's repository
+ * directory (git_path_submodule). In all cases, note that the result
+ * may be overwritten by another call to _any_ of the functions. Consider
+ * using the safer "dup" or "strbuf" formats below (in some cases, the
+ * unsafe versions have already been removed).
+ */
+extern const char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
+extern const char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
+
extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
__attribute__((format (printf, 3, 4)));
-extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
+extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...)
+ __attribute__((format (printf, 2, 3)));
+extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...)
+ __attribute__((format (printf, 2, 3)));
+extern void strbuf_git_path_submodule(struct strbuf *sb, const char *path,
+ const char *fmt, ...)
__attribute__((format (printf, 3, 4)));
extern char *git_pathdup(const char *fmt, ...)
__attribute__((format (printf, 1, 2)));
extern char *mkpathdup(const char *fmt, ...)
__attribute__((format (printf, 1, 2)));
-
-/* Return a statically allocated filename matching the sha1 signature */
-extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
-extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
-extern char *git_path_submodule(const char *path, const char *fmt, ...)
+extern char *git_pathdup_submodule(const char *path, const char *fmt, ...)
__attribute__((format (printf, 2, 3)));
+extern void report_linked_checkout_garbage(void);
+
+/*
+ * You can define a static memoized git path like:
+ *
+ * static GIT_PATH_FUNC(git_path_foo, "FOO");
+ *
+ * or use one of the global ones below.
+ */
+#define GIT_PATH_FUNC(func, filename) \
+ const char *func(void) \
+ { \
+ static char *ret; \
+ if (!ret) \
+ ret = git_pathdup(filename); \
+ return ret; \
+ }
+
+const char *git_path_cherry_pick_head(void);
+const char *git_path_revert_head(void);
+const char *git_path_squash_msg(void);
+const char *git_path_merge_msg(void);
+const char *git_path_merge_rr(void);
+const char *git_path_merge_mode(void);
+const char *git_path_merge_head(void);
+const char *git_path_fetch_head(void);
+const char *git_path_shallow(void);
+
/*
* Return the name of the file in the local object database that would
* be used to store a loose object with the specified sha1. The
*/
extern char *sha1_pack_index_name(const unsigned char *sha1);
-extern const char *find_unique_abbrev(const unsigned char *sha1, int);
-extern const unsigned char null_sha1[20];
+/*
+ * Return an abbreviated sha1 unique within this repository's object database.
+ * The result will be at least `len` characters long, and will be NUL
+ * terminated.
+ *
+ * The non-`_r` version returns a static buffer which will be overwritten by
+ * subsequent calls.
+ *
+ * The `_r` variant writes to a buffer supplied by the caller, which must be at
+ * least `GIT_SHA1_HEXSZ + 1` bytes. The return value is the number of bytes
+ * written (excluding the NUL terminator).
+ *
+ * Note that while this version avoids the static buffer, it is not fully
+ * reentrant, as it calls into other non-reentrant git code.
+ */
+extern const char *find_unique_abbrev(const unsigned char *sha1, int len);
+extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len);
+
+extern const unsigned char null_sha1[GIT_SHA1_RAWSZ];
+extern const struct object_id null_oid;
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
{
int i;
- for (i = 0; i < 20; i++, sha1++, sha2++) {
+ for (i = 0; i < GIT_SHA1_RAWSZ; i++, sha1++, sha2++) {
if (*sha1 != *sha2)
return *sha1 - *sha2;
}
return 0;
}
+static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2)
+{
+ return hashcmp(oid1->hash, oid2->hash);
+}
+
static inline int is_null_sha1(const unsigned char *sha1)
{
return !hashcmp(sha1, null_sha1);
}
+static inline int is_null_oid(const struct object_id *oid)
+{
+ return !hashcmp(oid->hash, null_sha1);
+}
+
static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
{
- memcpy(sha_dst, sha_src, 20);
+ memcpy(sha_dst, sha_src, GIT_SHA1_RAWSZ);
+}
+
+static inline void oidcpy(struct object_id *dst, const struct object_id *src)
+{
+ hashcpy(dst->hash, src->hash);
}
+
static inline void hashclr(unsigned char *hash)
{
- memset(hash, 0, 20);
+ memset(hash, 0, GIT_SHA1_RAWSZ);
+}
+
+static inline void oidclr(struct object_id *oid)
+{
+ hashclr(oid->hash);
}
+
#define EMPTY_TREE_SHA1_HEX \
"4b825dc642cb6eb9a060e54bf8d69288fbee4904"
#define EMPTY_TREE_SHA1_BIN_LITERAL \
enum scld_error safe_create_leading_directories_const(const char *path);
int mkdir_in_gitdir(const char *path);
-extern void home_config_paths(char **global, char **xdg, char *file);
extern char *expand_user_path(const char *path);
const char *enter_repo(const char *path, int strict);
static inline int is_absolute_path(const char *path)
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);
+extern int is_ntfs_dotgit(const char *name);
+
+/**
+ * Return a newly allocated string with the evaluation of
+ * "$XDG_CONFIG_HOME/git/$filename" if $XDG_CONFIG_HOME is non-empty, otherwise
+ * "$HOME/.config/git/$filename". Return NULL upon error.
+ */
+extern char *xdg_config_home(const char *filename);
/* object replacement */
#define LOOKUP_REPLACE_OBJECT 1
+#define LOOKUP_UNKNOWN_OBJECT 2
extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
{
extern int sha1_object_info(const unsigned char *, unsigned long *);
extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
+extern int hash_sha1_file_literally(const void *buf, unsigned long len, const char *type, unsigned char *sha1, unsigned flags);
extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
extern int force_object_loose(const unsigned char *sha1, time_t mtime);
extern int git_open_noatime(const char *name);
extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
-extern int move_temp_to_file(const char *tmpfile, const char *filename);
+extern int finalize_object_file(const char *tmpfile, const char *filename);
extern int has_sha1_pack(const unsigned char *sha1);
* Return true iff we have an object named sha1, whether local or in
* an alternate object database, and whether packed or loose. This
* function does not respect replace references.
+ *
+ * If the QUICK flag is set, do not re-check the pack directory
+ * when we cannot find the object (this means we may give a false
+ * negative answer if another process is simultaneously repacking).
*/
-extern int has_sha1_file(const unsigned char *sha1);
+#define HAS_SHA1_QUICK 0x1
+extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
+static inline int has_sha1_file(const unsigned char *sha1)
+{
+ return has_sha1_file_with_flags(sha1, 0);
+}
+
+/* Same as the above, except for struct object_id. */
+extern int has_object_file(const struct object_id *oid);
/*
* Return true iff an alternate object database has a loose object
unsigned char tree[20];
char path[PATH_MAX];
unsigned mode;
+ /*
+ * symlink_path is only used by get_tree_entry_follow_symlinks,
+ * and only for symlinks that point outside the repository.
+ */
+ struct strbuf symlink_path;
};
-#define GET_SHA1_QUIETLY 01
-#define GET_SHA1_COMMIT 02
-#define GET_SHA1_COMMITTISH 04
-#define GET_SHA1_TREE 010
-#define GET_SHA1_TREEISH 020
-#define GET_SHA1_BLOB 040
-#define GET_SHA1_ONLY_TO_DIE 04000
+#define GET_SHA1_QUIETLY 01
+#define GET_SHA1_COMMIT 02
+#define GET_SHA1_COMMITTISH 04
+#define GET_SHA1_TREE 010
+#define GET_SHA1_TREEISH 020
+#define GET_SHA1_BLOB 040
+#define GET_SHA1_FOLLOW_SYMLINKS 0100
+#define GET_SHA1_ONLY_TO_DIE 04000
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_commit(const char *str, unsigned char *sha1);
* null-terminated string.
*/
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
-
-extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
-extern int read_ref_full(const char *refname, unsigned char *sha1,
- int reading, int *flags);
-extern int read_ref(const char *refname, unsigned char *sha1);
+extern int get_oid_hex(const char *hex, struct object_id *sha1);
/*
- * Resolve a reference, recursively following symbolic refererences.
- *
- * Store the referred-to object's name in sha1 and return the name of
- * the non-symbolic reference that ultimately pointed at it. The
- * return value, if not NULL, is a pointer into either a static buffer
- * or the input ref.
- *
- * If the reference cannot be resolved to an object, the behavior
- * depends on the "reading" argument:
+ * Convert a binary sha1 to its hex equivalent. The `_r` variant is reentrant,
+ * and writes the NUL-terminated output to the buffer `out`, which must be at
+ * least `GIT_SHA1_HEXSZ + 1` bytes, and returns a pointer to out for
+ * convenience.
*
- * - If reading is set, return NULL.
+ * The non-`_r` variant returns a static buffer, but uses a ring of 4
+ * buffers, making it safe to make multiple calls for a single statement, like:
*
- * - If reading is not set, clear sha1 and return the name of the last
- * reference name in the chain, which will either be a non-symbolic
- * reference or an undefined reference. If this is a prelude to
- * "writing" to the ref, the return value is the name of the ref
- * that will actually be created or changed.
- *
- * If flag is non-NULL, set the value that it points to the
- * combination of REF_ISPACKED (if the reference was found among the
- * packed references) and REF_ISSYMREF (if the initial reference was a
- * symbolic reference).
- *
- * If ref is not a properly-formatted, normalized reference, return
- * NULL. If more than MAXDEPTH recursive symbolic lookups are needed,
- * give up and return NULL.
- *
- * errno is sometimes set on errors, but not always.
+ * printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two));
*/
-extern const char *resolve_ref_unsafe(const char *ref, unsigned char *sha1, int reading, int *flag);
-extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag);
+extern char *sha1_to_hex_r(char *out, const unsigned char *sha1);
+extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
+extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */
-extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
-extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
extern int interpret_branch_name(const char *str, int len, struct strbuf *);
extern int get_sha1_mb(const char *str, unsigned char *sha1);
-/*
- * Return true iff abbrev_name is a possible abbreviation for
- * full_name according to the rules defined by ref_rev_parse_rules in
- * refs.c.
- */
-extern int refname_match(const char *abbrev_name, const char *full_name);
-
-extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
extern int validate_headref(const char *ref);
extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
-extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
+extern int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
extern void *read_object_with_reference(const unsigned char *sha1,
extern struct object *peel_to_type(const char *name, int namelen,
struct object *o, enum object_type);
-enum date_mode {
- DATE_NORMAL = 0,
- DATE_RELATIVE,
- DATE_SHORT,
- DATE_LOCAL,
- DATE_ISO8601,
- DATE_RFC2822,
- DATE_RAW
+struct date_mode {
+ enum date_mode_type {
+ DATE_NORMAL = 0,
+ DATE_RELATIVE,
+ DATE_SHORT,
+ DATE_ISO8601,
+ DATE_ISO8601_STRICT,
+ DATE_RFC2822,
+ DATE_STRFTIME,
+ DATE_RAW
+ } type;
+ const char *strftime_fmt;
+ int local;
};
-const char *show_date(unsigned long time, int timezone, enum date_mode mode);
+/*
+ * Convenience helper for passing a constant type, like:
+ *
+ * show_date(t, tz, DATE_MODE(NORMAL));
+ */
+#define DATE_MODE(t) date_mode_from_type(DATE_##t)
+struct date_mode *date_mode_from_type(enum date_mode_type type);
+
+const char *show_date(unsigned long time, int timezone, const struct date_mode *mode);
void show_date_relative(unsigned long time, int tz, const struct timeval *now,
struct strbuf *timebuf);
-int parse_date(const char *date, char *buf, int bufsize);
+int parse_date(const char *date, struct strbuf *out);
int parse_date_basic(const char *date, unsigned long *timestamp, int *offset);
int parse_expiry_date(const char *date, unsigned long *timestamp);
-void datestamp(char *buf, int bufsize);
+void datestamp(struct strbuf *out);
#define approxidate(s) approxidate_careful((s), NULL)
unsigned long approxidate_careful(const char *, int *);
unsigned long approxidate_relative(const char *date, const struct timeval *now);
-enum date_mode parse_date_format(const char *format);
+void parse_date_format(const char *format, struct date_mode *mode);
int date_overflows(unsigned long date);
#define IDENT_STRICT 1
extern const char *git_committer_info(int);
extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
extern const char *fmt_name(const char *name, const char *email);
+extern const char *ident_default_name(void);
extern const char *ident_default_email(void);
extern const char *git_editor(void);
extern const char *git_pager(int stdout_is_tty);
*/
extern int split_ident_line(struct ident_split *, const char *, int);
+/*
+ * Like show_date, but pull the timestamp and tz parameters from
+ * the ident_split. It will also sanity-check the values and produce
+ * a well-known sentinel date if they appear bogus.
+ */
+const char *show_ident_date(const struct ident_split *id,
+ const struct date_mode *mode);
+
/*
* Compare split idents for equality or strict ordering. Note that we
* compare only the ident part of the line, ignoring any timestamp.
extern int ident_cmp(const struct ident_split *, const struct ident_split *);
struct checkout {
+ struct index_state *istate;
const char *base_dir;
int base_dir_len;
unsigned force:1,
extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
struct cache_def {
- char path[PATH_MAX + 1];
- int len;
+ struct strbuf path;
int flags;
int track_flags;
int prefix_len_stat_func;
};
+#define CACHE_DEF_INIT { STRBUF_INIT, 0, 0, 0 }
+static inline void cache_def_clear(struct cache_def *cache)
+{
+ strbuf_release(&cache->path);
+}
extern int has_symlink_leading_path(const char *name, int len);
extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
extern void read_info_alternates(const char * relative_base, int depth);
extern void add_to_alternates_file(const char *reference);
typedef int alt_odb_fn(struct alternate_object_database *, void *);
-extern void foreach_alt_odb(alt_odb_fn, void*);
+extern int foreach_alt_odb(alt_odb_fn, void*);
struct pack_window {
struct pack_window *next;
int pack_fd;
unsigned pack_local:1,
pack_keep:1,
+ freshened:1,
do_not_close:1;
unsigned char sha1[20];
struct revindex_entry *revindex;
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);
+/* A hook to report invalid files in pack directory */
+#define PACKDIR_FILE_PACK 1
+#define PACKDIR_FILE_IDX 2
+#define PACKDIR_FILE_GARBAGE 4
+extern void (*report_garbage)(unsigned seen_bits, const char *path);
extern void prepare_packed_git(void);
extern void reprepare_packed_git(void);
extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *);
extern void close_pack_windows(struct packed_git *);
+extern void close_all_packs(void);
extern void unuse_pack(struct pack_window **);
extern void free_pack_by_name(const char *);
extern void clear_delta_base_cache(void);
-extern struct packed_git *add_packed_git(const char *, int, int);
+extern struct packed_git *add_packed_git(const char *path, size_t path_len, int local);
/*
* Return the SHA-1 of the nth object within the specified packfile.
extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *);
+/*
+ * Iterate over the files in the loose-object parts of the object
+ * directory "path", triggering the following callbacks:
+ *
+ * - loose_object is called for each loose object we find.
+ *
+ * - loose_cruft is called for any files that do not appear to be
+ * loose objects. Note that we only look in the loose object
+ * directories "objects/[0-9a-f]{2}/", so we will not report
+ * "objects/foobar" as cruft.
+ *
+ * - loose_subdir is called for each top-level hashed subdirectory
+ * of the object directory (e.g., "$OBJDIR/f0"). It is called
+ * after the objects in the directory are processed.
+ *
+ * Any callback that is NULL will be ignored. Callbacks returning non-zero
+ * will end the iteration.
+ *
+ * In the "buf" variant, "path" is a strbuf which will also be used as a
+ * scratch buffer, but restored to its original contents before
+ * the function returns.
+ */
+typedef int each_loose_object_fn(const unsigned char *sha1,
+ const char *path,
+ void *data);
+typedef int each_loose_cruft_fn(const char *basename,
+ const char *path,
+ void *data);
+typedef int each_loose_subdir_fn(int nr,
+ const char *path,
+ void *data);
+int for_each_loose_file_in_objdir(const char *path,
+ each_loose_object_fn obj_cb,
+ each_loose_cruft_fn cruft_cb,
+ each_loose_subdir_fn subdir_cb,
+ void *data);
+int for_each_loose_file_in_objdir_buf(struct strbuf *path,
+ each_loose_object_fn obj_cb,
+ each_loose_cruft_fn cruft_cb,
+ each_loose_subdir_fn subdir_cb,
+ void *data);
+
+/*
+ * Iterate over loose and packed objects in both the local
+ * repository and any alternates repositories (unless the
+ * LOCAL_ONLY flag is set).
+ */
+#define FOR_EACH_OBJECT_LOCAL_ONLY 0x1
+typedef int each_packed_object_fn(const unsigned char *sha1,
+ struct packed_git *pack,
+ uint32_t pos,
+ void *data);
+extern int for_each_loose_object(each_loose_object_fn, void *, unsigned flags);
+extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags);
+
struct object_info {
/* Request */
enum object_type *typep;
unsigned long *sizep;
unsigned long *disk_sizep;
unsigned char *delta_base_sha1;
+ struct strbuf *typename;
/* Response */
enum {
#define CONFIG_INVALID_PATTERN 6
#define CONFIG_GENERIC_ERROR 7
+#define CONFIG_REGEX_NONE ((void *)1)
+
struct git_config_source {
unsigned int use_stdin:1;
const char *file;
const char *buf, size_t len, void *data);
extern void git_config_push_parameter(const char *text);
extern int git_config_from_parameters(config_fn_t fn, void *data);
-extern int git_config(config_fn_t fn, void *);
+extern void git_config(config_fn_t fn, void *);
extern int git_config_with_options(config_fn_t fn, void *,
struct git_config_source *config_source,
int respect_includes);
extern int git_config_early(config_fn_t fn, void *, const char *repo_config);
extern int git_parse_ulong(const char *, unsigned long *);
+extern int git_parse_maybe_bool(const char *);
extern int git_config_int(const char *, const char *);
extern int64_t git_config_int64(const char *, const char *);
extern unsigned long git_config_ulong(const char *, const char *);
extern int git_config_set_in_file(const char *, const char *, const char *);
extern int git_config_set(const char *, const char *);
extern int git_config_parse_key(const char *, char **, int *);
+extern int git_config_key_is_valid(const char *key);
extern int git_config_set_multivar(const char *, const char *, const char *, int);
extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
extern int git_config_rename_section(const char *, const char *);
extern const char *git_etc_gitconfig(void);
extern int check_repository_format_version(const char *var, const char *value, void *cb);
extern int git_env_bool(const char *, int);
+extern unsigned long git_env_ulong(const char *, unsigned long);
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)
+#if defined(__GNUC__)
+#define config_error_nonbool(s) (config_error_nonbool(s), const_error())
#endif
extern const char *get_log_output_encoding(void);
extern const char *get_commit_output_encoding(void);
const char **subsection, int *subsection_len,
const char **key);
+struct config_set_element {
+ struct hashmap_entry ent;
+ char *key;
+ struct string_list value_list;
+};
+
+struct configset_list_item {
+ struct config_set_element *e;
+ int value_index;
+};
+
+/*
+ * the contents of the list are ordered according to their
+ * position in the config files and order of parsing the files.
+ * (i.e. key-value pair at the last position of .git/config will
+ * be at the last item of the list)
+ */
+struct configset_list {
+ struct configset_list_item *items;
+ unsigned int nr, alloc;
+};
+
+struct config_set {
+ struct hashmap config_hash;
+ int hash_initialized;
+ struct configset_list list;
+};
+
+extern void git_configset_init(struct config_set *cs);
+extern int git_configset_add_file(struct config_set *cs, const char *filename);
+extern int git_configset_get_value(struct config_set *cs, const char *key, const char **value);
+extern const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key);
+extern void git_configset_clear(struct config_set *cs);
+extern int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest);
+extern int git_configset_get_string(struct config_set *cs, const char *key, char **dest);
+extern int git_configset_get_int(struct config_set *cs, const char *key, int *dest);
+extern int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest);
+extern int git_configset_get_bool(struct config_set *cs, const char *key, int *dest);
+extern int git_configset_get_bool_or_int(struct config_set *cs, const char *key, int *is_bool, int *dest);
+extern int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest);
+extern int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest);
+
+extern int git_config_get_value(const char *key, const char **value);
+extern const struct string_list *git_config_get_value_multi(const char *key);
+extern void git_config_clear(void);
+extern void git_config_iter(config_fn_t fn, void *data);
+extern int git_config_get_string_const(const char *key, const char **dest);
+extern int git_config_get_string(const char *key, char **dest);
+extern int git_config_get_int(const char *key, int *dest);
+extern int git_config_get_ulong(const char *key, unsigned long *dest);
+extern int git_config_get_bool(const char *key, int *dest);
+extern int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest);
+extern int git_config_get_maybe_bool(const char *key, int *dest);
+extern int git_config_get_pathname(const char *key, const char **dest);
+
+struct key_value_info {
+ const char *filename;
+ int linenr;
+};
+
+extern NORETURN void git_die_config(const char *key, const char *err, ...) __attribute__((format(printf, 2, 3)));
+extern NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr);
+
extern int committer_ident_sufficiently_given(void);
extern int author_ident_sufficiently_given(void);
/* IO helper functions */
extern void maybe_flush_or_die(FILE *, const char *);
+__attribute__((format (printf, 2, 3)))
+extern void fprintf_or_die(FILE *, const char *fmt, ...);
+
+#define COPY_READ_ERROR (-2)
+#define COPY_WRITE_ERROR (-3)
extern int copy_fd(int ifd, int ofd);
extern int copy_file(const char *dst, const char *src, int mode);
extern int copy_file_with_time(const char *dst, const char *src, int mode);
+
extern void write_or_die(int fd, const void *buf, size_t count);
extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
extern ssize_t read_in_full(int fd, void *buf, size_t count);
extern ssize_t write_in_full(int fd, const void *buf, size_t count);
+extern ssize_t pread_in_full(int fd, void *buf, size_t count, off_t offset);
+
static inline ssize_t write_str_in_full(int fd, const char *str)
{
return write_in_full(fd, str, strlen(str));
}
+extern int write_file(const char *path, const char *fmt, ...);
+extern int write_file_gently(const char *path, const char *fmt, ...);
+
/* pager.c */
extern void setup_pager(void);
extern const char *pager_program;
extern int pager_in_use(void);
extern int pager_use_color;
extern int term_columns(void);
-extern int decimal_width(int);
+extern int decimal_width(uintmax_t);
extern int check_pager_config(const char *cmd);
extern const char *editor_program;
extern void *alloc_tag_node(void);
extern void *alloc_object_node(void);
extern void alloc_report(void);
+extern unsigned int alloc_commit_index(void);
-/* trace.c */
-__attribute__((format (printf, 1, 2)))
-extern void trace_printf(const char *format, ...);
-__attribute__((format (printf, 2, 3)))
-extern void trace_argv_printf(const char **argv, const char *format, ...);
-extern void trace_repo_setup(const char *prefix);
-extern int trace_want(const char *key);
-__attribute__((format (printf, 2, 3)))
-extern void trace_printf_key(const char *key, const char *fmt, ...);
-extern void trace_strbuf(const char *key, const struct strbuf *buf);
-
+/* pkt-line.c */
void packet_trace_identity(const char *prog);
/* add */
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
/* ls-files */
-int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix);
void overlay_tree_on_cache(const char *tree_name, const char *prefix);
char *alias_lookup(const char *alias);
void stat_validity_update(struct stat_validity *sv, int fd);
int versioncmp(const char *s1, const char *s2);
+void sleep_millisec(int millisec);
+
+/*
+ * Create a directory and (if share is nonzero) adjust its permissions
+ * according to the shared_repository setting. Only use this for
+ * directories under $GIT_DIR. Don't use it for working tree
+ * directories.
+ */
+void safe_create_dir(const char *dir, int share);
#endif /* CACHE_H */