#include "git-compat-util.h"
#include "strbuf.h"
#include "hashmap.h"
+#include "list.h"
#include "advice.h"
#include "gettext.h"
#include "convert.h"
#include "trace.h"
+#include "trace2.h"
#include "string-list.h"
#include "pack-revindex.h"
-
-#include SHA1_HEADER
-#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 "hash.h"
+#include "path.h"
+#include "sha1-array.h"
+#include "repository.h"
+#include "mem-pool.h"
#include <zlib.h>
typedef struct git_zstream {
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
struct stat_data ce_stat_data;
unsigned int ce_mode;
unsigned int ce_flags;
+ unsigned int mem_pool_allocated;
unsigned int ce_namelen;
unsigned int index; /* for link extension */
- unsigned char sha1[20];
+ struct object_id oid;
char name[FLEX_ARRAY]; /* more */
};
#define CE_ADDED (1 << 19)
#define CE_HASHED (1 << 20)
+#define CE_FSMONITOR_VALID (1 << 21)
#define CE_WT_REMOVE (1 << 22) /* remove in work directory */
#define CE_CONFLICTED (1 << 23)
/* Forward structure decls */
struct pathspec;
struct child_process;
+struct tree;
/*
* Copy the sha1 and stat state of a cache entry from one to
const struct cache_entry *src)
{
unsigned int state = dst->ce_flags & CE_HASHED;
+ int mem_pool_allocated = dst->mem_pool_allocated;
/* Don't copy hash chain and name */
memcpy(&dst->ce_stat_data, &src->ce_stat_data,
/* Restore the hash state */
dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state;
+
+ /* Restore the mem_pool_allocated flag */
+ dst->mem_pool_allocated = mem_pool_allocated;
}
static inline unsigned create_ce_flags(unsigned stage)
#define CACHE_TREE_CHANGED (1 << 5)
#define SPLIT_INDEX_ORDERED (1 << 6)
#define UNTRACKED_CHANGED (1 << 7)
+#define FSMONITOR_CHANGED (1 << 8)
struct split_index;
struct untracked_cache;
+struct progress;
struct index_state {
struct cache_entry **cache;
struct split_index *split_index;
struct cache_time timestamp;
unsigned name_hash_initialized : 1,
- initialized : 1;
+ initialized : 1,
+ drop_cache_tree : 1,
+ updated_workdir : 1,
+ updated_skipworktree : 1,
+ fsmonitor_has_run_once : 1;
struct hashmap name_hash;
struct hashmap dir_hash;
- unsigned char sha1[20];
+ struct object_id oid;
struct untracked_cache *untracked;
+ uint64_t fsmonitor_last_update;
+ struct ewah_bitmap *fsmonitor_dirty;
+ struct mem_pool *ce_mem_pool;
+ struct progress *progress;
};
-extern struct index_state the_index;
-
/* Name hashing */
-extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
-extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce);
-extern void free_name_hash(struct index_state *istate);
+int test_lazy_init_name_hash(struct index_state *istate, int try_threaded);
+void add_name_hash(struct index_state *istate, struct cache_entry *ce);
+void remove_name_hash(struct index_state *istate, struct cache_entry *ce);
+void free_name_hash(struct index_state *istate);
-#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
+/* Cache entry creation and cleanup */
+
+/*
+ * Create cache_entry intended for use in the specified index. Caller
+ * is responsible for discarding the cache_entry with
+ * `discard_cache_entry`.
+ */
+struct cache_entry *make_cache_entry(struct index_state *istate,
+ unsigned int mode,
+ const struct object_id *oid,
+ const char *path,
+ int stage,
+ unsigned int refresh_options);
+
+struct cache_entry *make_empty_cache_entry(struct index_state *istate,
+ size_t name_len);
+
+/*
+ * Create a cache_entry that is not intended to be added to an index.
+ * Caller is responsible for discarding the cache_entry
+ * with `discard_cache_entry`.
+ */
+struct cache_entry *make_transient_cache_entry(unsigned int mode,
+ const struct object_id *oid,
+ const char *path,
+ int stage);
+
+struct cache_entry *make_empty_transient_cache_entry(size_t name_len);
+
+/*
+ * Discard cache entry.
+ */
+void discard_cache_entry(struct cache_entry *ce);
+
+/*
+ * Check configuration if we should perform extra validation on cache
+ * entries.
+ */
+int should_validate_cache_entries(void);
+
+/*
+ * Duplicate a cache_entry. Allocate memory for the new entry from a
+ * memory_pool. Takes into account cache_entry fields that are meant
+ * for managing the underlying memory allocation of the cache_entry.
+ */
+struct cache_entry *dup_cache_entry(const struct cache_entry *ce, struct index_state *istate);
+
+/*
+ * Validate the cache entries in the index. This is an internal
+ * consistency check that the cache_entry structs are allocated from
+ * the expected memory pool.
+ */
+void validate_cache_entries(const struct index_state *istate);
+
+#ifdef USE_THE_INDEX_COMPATIBILITY_MACROS
+extern struct index_state the_index;
+
#define active_cache (the_index.cache)
#define active_nr (the_index.cache_nr)
#define active_alloc (the_index.cache_alloc)
#define active_cache_changed (the_index.cache_changed)
#define active_cache_tree (the_index.cache_tree)
-#define read_cache() read_index(&the_index)
-#define read_cache_from(path) read_index_from(&the_index, (path))
-#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
+#define read_cache() repo_read_index(the_repository)
+#define read_cache_from(path) read_index_from(&the_index, (path), (get_git_dir()))
+#define read_cache_preload(pathspec) repo_read_index_preload(the_repository, (pathspec), 0)
#define is_cache_unborn() is_index_unborn(&the_index)
-#define read_cache_unmerged() read_index_unmerged(&the_index)
+#define read_cache_unmerged() repo_read_index_unmerged(the_repository)
#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))
#define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
#define chmod_cache_entry(ce, flip) chmod_index_entry(&the_index, (ce), (flip))
#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
+#define refresh_and_write_cache(refresh_flags, write_flags, gentle) repo_refresh_and_write_index(the_repository, (refresh_flags), (write_flags), (gentle), NULL, 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_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
#define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
#define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
#define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz))
+#define hold_locked_index(lock_file, flags) repo_hold_locked_index(the_repository, (lock_file), (flags))
#endif
+#define TYPE_BITS 3
+
+/*
+ * Values in this enum (except those outside the 3 bit range) are part
+ * of pack file format. See Documentation/technical/pack-format.txt
+ * for more information.
+ */
enum object_type {
OBJ_BAD = -1,
OBJ_NONE = 0,
#define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
+#define GIT_SUPER_PREFIX_ENVIRONMENT "GIT_INTERNAL_SUPER_PREFIX"
#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
#define GITATTRIBUTES_FILE ".gitattributes"
#define INFOATTRIBUTES_FILE "info/attributes"
#define ATTRIBUTE_MACRO_PREFIX "[attr]"
+#define GITMODULES_FILE ".gitmodules"
+#define GITMODULES_INDEX ":.gitmodules"
+#define GITMODULES_HEAD "HEAD:.gitmodules"
#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
#define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
#define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS"
#define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
#define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
+#define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH"
+#define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS"
+#define GIT_TEXT_DOMAIN_DIR_ENVIRONMENT "GIT_TEXTDOMAINDIR"
+
+/*
+ * Environment variable used in handshaking the wire protocol.
+ * Contains a colon ':' separated list of keys with optional values
+ * 'key[=value]'. Presence of unknown keys and values must be
+ * ignored.
+ */
+#define GIT_PROTOCOL_ENVIRONMENT "GIT_PROTOCOL"
+/* HTTP header used to handshake the wire protocol */
+#define GIT_PROTOCOL_HEADER "Git-Protocol"
/*
* This environment variable is expected to contain a boolean indicating
*/
extern const char * const local_repo_env[];
+void setup_git_env(const char *git_dir);
+
+/*
+ * Returns true iff we have a configured git repository (either via
+ * setup_git_directory, or in the environment via $GIT_DIR).
+ */
+int have_git_dir(void);
+
extern int is_bare_repository_cfg;
-extern int is_bare_repository(void);
-extern int is_inside_git_dir(void);
+int is_bare_repository(void);
+int is_inside_git_dir(void);
extern char *git_work_tree_cfg;
-extern int is_inside_work_tree(void);
-extern const char *get_git_dir(void);
-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);
+int is_inside_work_tree(void);
+const char *get_git_dir(void);
+const char *get_git_common_dir(void);
+char *get_object_directory(void);
+char *get_index_file(void);
+char *get_graft_file(struct repository *r);
+void set_git_dir(const char *path);
+int get_common_dir_noenv(struct strbuf *sb, const char *gitdir);
+int get_common_dir(struct strbuf *sb, const char *gitdir);
+const char *get_git_namespace(void);
+const char *strip_namespace(const char *namespaced_ref);
+const char *get_super_prefix(void);
+const char *get_git_work_tree(void);
/*
* 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);
+int is_git_directory(const char *path);
/*
* Return 1 if the given path is the root of a git repository or
* 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);
+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_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);
+void read_gitfile_error_die(int error_code, const char *path, const char *dir);
+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);
+const char *resolve_gitdir_gently(const char *suspect, int *return_error_code);
+#define resolve_gitdir(path) resolve_gitdir_gently((path), NULL)
+
+void set_git_work_tree(const char *tree);
#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
-extern const char **get_pathspec(const char *prefix, const char **pathspec);
-extern void setup_work_tree(void);
-extern const char *setup_git_directory_gently(int *);
-extern const char *setup_git_directory(void);
-extern char *prefix_path(const char *prefix, int len, const char *path);
-extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path);
-extern const char *prefix_filename(const char *prefix, int len, const char *path);
-extern int check_filename(const char *prefix, const char *name);
-extern void verify_filename(const char *prefix,
- const char *name,
- int diagnose_misspelt_rev);
-extern void verify_non_filename(const char *prefix, const char *name);
-extern int path_inside_repo(const char *prefix, const char *path);
+void setup_work_tree(void);
+/*
+ * Find the commondir and gitdir of the repository that contains the current
+ * working directory, without changing the working directory or other global
+ * state. The result is appended to commondir and gitdir. If the discovered
+ * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will
+ * both have the same result appended to the buffer. The return value is
+ * either 0 upon success and non-zero if no repository was found.
+ */
+int discover_git_directory(struct strbuf *commondir,
+ struct strbuf *gitdir);
+const char *setup_git_directory_gently(int *);
+const char *setup_git_directory(void);
+char *prefix_path(const char *prefix, int len, const char *path);
+char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path);
+
+/*
+ * Concatenate "prefix" (if len is non-zero) and "path", with no
+ * connecting characters (so "prefix" should end with a "/").
+ * Unlike prefix_path, this should be used if the named file does
+ * not have to interact with index entry; i.e. name of a random file
+ * on the filesystem.
+ *
+ * The return value is always a newly allocated string (even if the
+ * prefix was empty).
+ */
+char *prefix_filename(const char *prefix, const char *path);
+
+int check_filename(const char *prefix, const char *name);
+void verify_filename(const char *prefix,
+ const char *name,
+ int diagnose_misspelt_rev);
+void verify_non_filename(const char *prefix, const char *name);
+int path_inside_repo(const char *prefix, const char *path);
#define INIT_DB_QUIET 0x0001
+#define INIT_DB_EXIST_OK 0x0002
-extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int);
-extern int init_db(const char *template_dir, unsigned int flags);
+int init_db(const char *git_dir, const char *real_git_dir,
+ const char *template_dir, unsigned int flags);
-extern void sanitize_stdfds(void);
-extern int daemonize(void);
+void sanitize_stdfds(void);
+int daemonize(void);
#define alloc_nr(x) (((x)+16)*3/2)
-/*
- * Realloc the buffer pointed at by variable 'x' so that it can hold
- * at least 'nr' entries; the number of entries currently allocated
- * is 'alloc', using the standard growing factor alloc_nr() macro.
+/**
+ * Dynamically growing an array using realloc() is error prone and boring.
+ *
+ * Define your array with:
+ *
+ * - a pointer (`item`) that points at the array, initialized to `NULL`
+ * (although please name the variable based on its contents, not on its
+ * type);
+ *
+ * - an integer variable (`alloc`) that keeps track of how big the current
+ * allocation is, initialized to `0`;
+ *
+ * - another integer variable (`nr`) to keep track of how many elements the
+ * array currently has, initialized to `0`.
+ *
+ * Then before adding `n`th element to the item, call `ALLOC_GROW(item, n,
+ * alloc)`. This ensures that the array can hold at least `n` elements by
+ * calling `realloc(3)` and adjusting `alloc` variable.
+ *
+ * ------------
+ * sometype *item;
+ * size_t nr;
+ * size_t alloc
+ *
+ * for (i = 0; i < nr; i++)
+ * if (we like item[i] already)
+ * return;
+ *
+ * // we did not like any existing one, so add one
+ * ALLOC_GROW(item, nr + 1, alloc);
+ * item[nr++] = value you like;
+ * ------------
+ *
+ * You are responsible for updating the `nr` variable.
+ *
+ * If you need to specify the number of elements to allocate explicitly
+ * then use the macro `REALLOC_ARRAY(item, alloc)` instead of `ALLOC_GROW`.
+ *
+ * Consider using ALLOC_GROW_BY instead of ALLOC_GROW as it has some
+ * added niceties.
*
* DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
*/
} \
} while (0)
+/*
+ * Similar to ALLOC_GROW but handles updating of the nr value and
+ * zeroing the bytes of the newly-grown array elements.
+ *
+ * DO NOT USE any expression with side-effect for any of the
+ * arguments.
+ */
+#define ALLOC_GROW_BY(x, nr, increase, alloc) \
+ do { \
+ if (increase) { \
+ size_t new_nr = nr + (increase); \
+ if (new_nr < nr) \
+ BUG("negative growth in ALLOC_GROW_BY"); \
+ ALLOC_GROW(x, new_nr, alloc); \
+ memset((x) + nr, 0, sizeof(*(x)) * (increase)); \
+ nr = new_nr; \
+ } \
+ } 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 *);
+void preload_index(struct index_state *index,
+ const struct pathspec *pathspec,
+ unsigned int refresh_flags);
+int do_read_index(struct index_state *istate, const char *path,
+ int must_exist); /* for testting only! */
+int read_index_from(struct index_state *, const char *path,
+ const char *gitdir);
+int is_index_unborn(struct index_state *);
+
+/* For use with `write_locked_index()`. */
#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 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 SKIP_IF_UNCHANGED (1 << 1)
+
+/*
+ * Write the index while holding an already-taken lock. Close the lock,
+ * and if `COMMIT_LOCK` is given, commit it.
+ *
+ * Unless a split index is in use, write the index into the lockfile.
+ *
+ * With a split index, write the shared index to a temporary file,
+ * adjust its permissions and rename it into place, then write the
+ * split index to the lockfile. If the temporary file for the shared
+ * index cannot be created, fall back to the behavior described in
+ * the previous paragraph.
+ *
+ * With `COMMIT_LOCK`, the lock is always committed or rolled back.
+ * Without it, the lock is closed, but neither committed nor rolled
+ * back.
+ *
+ * If `SKIP_IF_UNCHANGED` is given and the index is unchanged, nothing
+ * is written (and the lock is rolled back if `COMMIT_LOCK` is given).
+ */
+int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
+
+int discard_index(struct index_state *);
+void move_index_extensions(struct index_state *dst, struct index_state *src);
+int unmerged_index(const struct index_state *);
+
+/**
+ * Returns 1 if istate differs from tree, 0 otherwise. If tree is NULL,
+ * compares istate to HEAD. If tree is NULL and on an unborn branch,
+ * returns 1 if there are entries in istate, 0 otherwise. If an strbuf is
+ * provided, the space-separated list of files that differ will be appended
+ * to it.
+ */
+int repo_index_has_changes(struct repository *repo,
+ struct tree *tree,
+ struct strbuf *sb);
+
+int verify_path(const char *path, unsigned mode);
+int strcmp_offset(const char *s1, const char *s2, size_t *first_change);
+int index_dir_exists(struct index_state *istate, const char *name, int namelen);
+void adjust_dirname_case(struct index_state *istate, char *name);
+struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase);
+
+/*
+ * Searches for an entry defined by name and namelen in the given index.
+ * If the return value is positive (including 0) it is the position of an
+ * exact match. If the return value is negative, the negated value minus 1
+ * is the position where the entry would be inserted.
+ * Example: The current index consists of these files and its stages:
+ *
+ * b#0, d#0, f#1, f#3
+ *
+ * index_name_pos(&index, "a", 1) -> -1
+ * index_name_pos(&index, "b", 1) -> 0
+ * index_name_pos(&index, "c", 1) -> -2
+ * index_name_pos(&index, "d", 1) -> 1
+ * index_name_pos(&index, "e", 1) -> -3
+ * index_name_pos(&index, "f", 1) -> -3
+ * index_name_pos(&index, "g", 1) -> -5
+ */
+int index_name_pos(const struct index_state *, const char *name, int namelen);
+
+/*
+ * Some functions return the negative complement of an insert position when a
+ * precise match was not found but a position was found where the entry would
+ * need to be inserted. This helper protects that logic from any integer
+ * underflow.
+ */
+static inline int index_pos_to_insert_pos(uintmax_t pos)
+{
+ if (pos > INT_MAX)
+ die("overflow: -1 - %"PRIuMAX, pos);
+ return -1 - (int)pos;
+}
+
#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
#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);
-extern void remove_marked_cache_entries(struct index_state *istate);
-extern int remove_file_from_index(struct index_state *, const char *path);
+#define ADD_CACHE_RENORMALIZE 64 /* Pass along HASH_RENORMALIZE */
+int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
+void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
+
+/* Remove entry, return true if there are more entries to go. */
+int remove_index_entry_at(struct index_state *, int pos);
+
+void remove_marked_cache_entries(struct index_state *istate, int invalidate);
+int remove_file_from_index(struct index_state *, const char *path);
#define ADD_CACHE_VERBOSE 1
#define ADD_CACHE_PRETEND 2
#define ADD_CACHE_IGNORE_ERRORS 4
#define ADD_CACHE_IGNORE_REMOVAL 8
#define ADD_CACHE_INTENT 16
-extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
-extern int add_file_to_index(struct index_state *, const char *path, int flags);
-extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, unsigned int refresh_options);
-extern int chmod_index_entry(struct index_state *, struct cache_entry *ce, char flip);
-extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b);
-extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce);
-extern int index_name_is_other(const struct index_state *, const char *, int);
-extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *);
+/*
+ * These two are used to add the contents of the file at path
+ * to the index, marking the working tree up-to-date by storing
+ * the cached stat info in the resulting cache entry. A caller
+ * that has already run lstat(2) on the path can call
+ * add_to_index(), and all others can call add_file_to_index();
+ * the latter will do necessary lstat(2) internally before
+ * calling the former.
+ */
+int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
+int add_file_to_index(struct index_state *, const char *path, int flags);
+
+int chmod_index_entry(struct index_state *, struct cache_entry *ce, char flip);
+int ce_same_name(const struct cache_entry *a, const struct cache_entry *b);
+void set_object_name_for_intent_to_add_entry(struct cache_entry *ce);
+int index_name_is_other(const struct index_state *, const char *, int);
+void *read_blob_data_from_index(const struct index_state *, const char *, unsigned long *);
/* do stat comparison even if CE_VALID is true */
#define CE_MATCH_IGNORE_VALID 01
#define CE_MATCH_IGNORE_MISSING 0x08
/* enable stat refresh */
#define CE_MATCH_REFRESH 0x10
-extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
-extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
+/* don't refresh_fsmonitor state or do stat comparison even if CE_FSMONITOR_VALID is true */
+#define CE_MATCH_IGNORE_FSMONITOR 0X20
+int is_racy_timestamp(const struct index_state *istate,
+ const struct cache_entry *ce);
+int ie_match_stat(struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
+int ie_modified(struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
#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);
-extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags);
+#define HASH_RENORMALIZE 4
+int index_fd(struct index_state *istate, struct object_id *oid, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags);
+int index_path(struct index_state *istate, struct object_id *oid, const char *path, struct stat *st, unsigned flags);
/*
* Record to sd the data from st that we use to check whether a file
* might have changed.
*/
-extern void fill_stat_data(struct stat_data *sd, struct stat *st);
+void fill_stat_data(struct stat_data *sd, struct stat *st);
/*
* Return 0 if st is consistent with a file not having been changed
* combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED,
* 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);
+int match_stat_data(const struct stat_data *sd, struct stat *st);
+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);
+void fill_stat_cache_info(struct index_state *istate, struct cache_entry *ce, struct stat *st);
#define REFRESH_REALLY 0x0001 /* ignore_valid */
#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
#define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
#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);
-extern struct cache_entry *refresh_cache_entry(struct cache_entry *, unsigned int);
+#define REFRESH_PROGRESS 0x0040 /* show progress bar if stderr is tty */
+int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg);
+/*
+ * Refresh the index and write it to disk.
+ *
+ * 'refresh_flags' is passed directly to 'refresh_index()', while
+ * 'COMMIT_LOCK | write_flags' is passed to 'write_locked_index()', so
+ * the lockfile is always either committed or rolled back.
+ *
+ * If 'gentle' is passed, errors locking the index are ignored.
+ *
+ * Return 1 if refreshing the index returns an error, -1 if writing
+ * the index to disk fails, 0 on success.
+ *
+ * Note that if refreshing the index returns an error, we still write
+ * out the index (unless locking fails).
+ */
+int repo_refresh_and_write_index(struct repository*, unsigned int refresh_flags, unsigned int write_flags, int gentle, const struct pathspec *, char *seen, const char *header_msg);
+
+struct cache_entry *refresh_cache_entry(struct index_state *, struct cache_entry *, unsigned int);
-extern void update_index_if_able(struct index_state *, struct lock_file *);
+void set_alternate_index_output(const char *);
-extern int hold_locked_index(struct lock_file *, int);
-extern void set_alternate_index_output(const char *);
+extern int verify_index_checksum;
+extern int verify_ce_order;
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int ignore_case;
extern int assume_unchanged;
extern int prefer_symlink_refs;
-extern int log_all_ref_updates;
extern int warn_ambiguous_refs;
extern int warn_on_object_refname_ambiguity;
extern const char *apply_default_whitespace;
extern const char *git_hooks_path;
extern int zlib_compression_level;
extern int core_compression_level;
-extern int core_compression_seen;
+extern int pack_compression_level;
extern size_t packed_git_window_size;
extern size_t packed_git_limit;
extern size_t delta_base_cache_limit;
extern unsigned long big_file_threshold;
extern unsigned long pack_size_limit_cfg;
+/*
+ * Accessors for the core.sharedrepository config which lazy-load the value
+ * from the config (if not already set). The "reset" function can be
+ * used to unset "set" or cached value, meaning that the value will be loaded
+ * fresh from the config file on the next call to get_shared_repository().
+ */
void set_shared_repository(int value);
int get_shared_repository(void);
+void reset_shared_repository(void);
/*
* Do replace refs need to be checked this run? This variable is
* initialized to true unless --no-replace-object is used or
* $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some
- * commands that do not want replace references to be active. As an
- * optimization it is also set to false if replace references have
- * been sought but there were none.
+ * commands that do not want replace references to be active.
*/
-extern int check_replace_refs;
+extern int read_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;
+extern const char *core_fsmonitor;
+
+extern int core_apply_sparse_checkout;
+extern int core_sparse_checkout_cone;
/*
* Include broken refs in all ref iterations, which will
extern int ref_paranoia;
/*
+ * Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value).
+ */
+int use_optional_locks(void);
+
+/*
* 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;
-/* Windows only */
-enum hide_dotfiles_type {
- HIDE_DOTFILES_FALSE = 0,
- HIDE_DOTFILES_TRUE,
- HIDE_DOTFILES_DOTGITONLY
-};
-extern enum hide_dotfiles_type hide_dotfiles;
-
-enum branch_track {
- BRANCH_TRACK_UNSPECIFIED = -1,
- BRANCH_TRACK_NEVER = 0,
- BRANCH_TRACK_REMOTE,
- BRANCH_TRACK_ALWAYS,
- BRANCH_TRACK_EXPLICIT,
- BRANCH_TRACK_OVERRIDE
+enum log_refs_config {
+ LOG_REFS_UNSET = -1,
+ LOG_REFS_NONE = 0,
+ LOG_REFS_NORMAL,
+ LOG_REFS_ALWAYS
};
+extern enum log_refs_config log_all_ref_updates;
enum rebase_setup_type {
AUTOREBASE_NEVER = 0,
PUSH_DEFAULT_UNSPECIFIED
};
-extern enum branch_track git_branch_track;
extern enum rebase_setup_type autorebase;
extern enum push_default_type push_default;
#define GIT_REPO_VERSION 0
#define GIT_REPO_VERSION_READ 1
extern int repository_format_precious_objects;
+extern int repository_format_worktree_config;
+/*
+ * You _have_ to initialize a `struct repository_format` using
+ * `= REPOSITORY_FORMAT_INIT` before calling `read_repository_format()`.
+ */
struct repository_format {
int version;
int precious_objects;
+ char *partial_clone; /* value of extensions.partialclone */
+ int worktree_config;
int is_bare;
+ int hash_algo;
char *work_tree;
struct string_list unknown_extensions;
};
/*
+ * Always use this to initialize a `struct repository_format`
+ * to a well-defined, default state before calling
+ * `read_repository()`.
+ */
+#define REPOSITORY_FORMAT_INIT \
+{ \
+ .version = -1, \
+ .is_bare = -1, \
+ .hash_algo = GIT_HASH_SHA1, \
+ .unknown_extensions = STRING_LIST_INIT_DUP, \
+}
+
+/*
* Read the repository format characteristics from the config file "path" into
- * "format" struct. Returns the numeric version. On error, -1 is returned,
- * format->version is set to -1, and all other fields in the struct are
- * undefined.
+ * "format" struct. Returns the numeric version. On error, or if no version is
+ * found in the configuration, -1 is returned, format->version is set to -1,
+ * and all other fields in the struct are set to the default configuration
+ * (REPOSITORY_FORMAT_INIT). Always initialize the struct using
+ * REPOSITORY_FORMAT_INIT before calling this function.
*/
int read_repository_format(struct repository_format *format, const char *path);
/*
+ * Free the memory held onto by `format`, but not the struct itself.
+ * (No need to use this after `read_repository_format()` fails.)
+ */
+void clear_repository_format(struct repository_format *format);
+
+/*
* Verify that the repository described by repository_format is something we
* can read. If it is, return 0. Otherwise, return -1, and "err" will describe
* any errors encountered.
* set_git_dir() before calling this, and use it only for "are we in a valid
* repo?".
*/
-extern void check_repository_format(void);
+void check_repository_format(void);
#define MTIME_CHANGED 0x0001
#define CTIME_CHANGED 0x0002
#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 const char *git_common_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 void strbuf_git_path(struct strbuf *sb, const char *fmt, ...)
- __attribute__((format (printf, 2, 3)));
-extern void strbuf_git_common_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)));
-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
- * return value is a pointer to a statically allocated buffer that is
- * overwritten each time the function is called.
- */
-extern const char *sha1_file_name(const unsigned char *sha1);
-
-/*
- * Return the name of the (local) packfile with the specified sha1 in
- * its name. The return value is a pointer to memory that is
- * overwritten each time this function is called.
- */
-extern char *sha1_pack_name(const unsigned char *sha1);
-
-/*
- * Return the name of the (local) pack index file with the specified
- * sha1 in its name. The return value is a pointer to memory that is
- * overwritten each time this function is called.
- */
-extern char *sha1_pack_index_name(const unsigned char *sha1);
-
-/*
* 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 non-`_r` version returns a static buffer which remains valid until 4
+ * more calls to find_unique_abbrev are made.
*
* 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
+ * least `GIT_MAX_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);
+const char *repo_find_unique_abbrev(struct repository *r, const struct object_id *oid, int len);
+#define find_unique_abbrev(oid, len) repo_find_unique_abbrev(the_repository, oid, len)
+int repo_find_unique_abbrev_r(struct repository *r, char *hex, const struct object_id *oid, int len);
+#define find_unique_abbrev_r(hex, oid, len) repo_find_unique_abbrev_r(the_repository, hex, oid, 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 < GIT_SHA1_RAWSZ; i++, sha1++, sha2++) {
- if (*sha1 != *sha2)
- return *sha1 - *sha2;
- }
-
- return 0;
+ /*
+ * Teach the compiler that there are only two possibilities of hash size
+ * here, so that it can optimize for this case as much as possible.
+ */
+ if (the_hash_algo->rawsz == GIT_MAX_RAWSZ)
+ return memcmp(sha1, sha2, GIT_MAX_RAWSZ);
+ return memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
}
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)
+static inline int hasheq(const unsigned char *sha1, const unsigned char *sha2)
+{
+ /*
+ * We write this here instead of deferring to hashcmp so that the
+ * compiler can properly inline it and avoid calling memcmp.
+ */
+ if (the_hash_algo->rawsz == GIT_MAX_RAWSZ)
+ return !memcmp(sha1, sha2, GIT_MAX_RAWSZ);
+ return !memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
+}
+
+static inline int oideq(const struct object_id *oid1, const struct object_id *oid2)
{
- return !hashcmp(sha1, null_sha1);
+ return hasheq(oid1->hash, oid2->hash);
}
static inline int is_null_oid(const struct object_id *oid)
{
- return !hashcmp(oid->hash, null_sha1);
+ return oideq(oid, &null_oid);
}
static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
{
- memcpy(sha_dst, sha_src, GIT_SHA1_RAWSZ);
+ memcpy(sha_dst, sha_src, the_hash_algo->rawsz);
}
static inline void oidcpy(struct object_id *dst, const struct object_id *src)
{
- hashcpy(dst->hash, src->hash);
+ memcpy(dst->hash, src->hash, GIT_MAX_RAWSZ);
+}
+
+static inline struct object_id *oiddup(const struct object_id *src)
+{
+ struct object_id *dst = xmalloc(sizeof(struct object_id));
+ oidcpy(dst, src);
+ return dst;
}
static inline void hashclr(unsigned char *hash)
{
- memset(hash, 0, GIT_SHA1_RAWSZ);
+ memset(hash, 0, the_hash_algo->rawsz);
}
static inline void oidclr(struct object_id *oid)
{
- hashclr(oid->hash);
+ memset(oid->hash, 0, GIT_MAX_RAWSZ);
}
+static inline void oidread(struct object_id *oid, const unsigned char *hash)
+{
+ memcpy(oid->hash, hash, the_hash_algo->rawsz);
+}
-#define EMPTY_TREE_SHA1_HEX \
- "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
-#define EMPTY_TREE_SHA1_BIN_LITERAL \
- "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
- "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
-#define EMPTY_TREE_SHA1_BIN \
- ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
+static inline int is_empty_blob_sha1(const unsigned char *sha1)
+{
+ return hasheq(sha1, the_hash_algo->empty_blob->hash);
+}
-#define EMPTY_BLOB_SHA1_HEX \
- "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
-#define EMPTY_BLOB_SHA1_BIN_LITERAL \
- "\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \
- "\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91"
-#define EMPTY_BLOB_SHA1_BIN \
- ((const unsigned char *) EMPTY_BLOB_SHA1_BIN_LITERAL)
+static inline int is_empty_blob_oid(const struct object_id *oid)
+{
+ return oideq(oid, the_hash_algo->empty_blob);
+}
-static inline int is_empty_blob_sha1(const unsigned char *sha1)
+static inline int is_empty_tree_sha1(const unsigned char *sha1)
{
- return !hashcmp(sha1, EMPTY_BLOB_SHA1_BIN);
+ return hasheq(sha1, the_hash_algo->empty_tree->hash);
}
-int git_mkstemp(char *path, size_t n, const char *template);
+static inline int is_empty_tree_oid(const struct object_id *oid)
+{
+ return oideq(oid, the_hash_algo->empty_tree);
+}
+
+const char *empty_tree_oid_hex(void);
+const char *empty_blob_oid_hex(void);
/* set default permissions by passing mode arguments to open(2) */
int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
/*
* Create the directory containing the named path, using care to be
- * somewhat safe against races. Return one of the scld_error values
- * to indicate success/failure.
+ * somewhat safe against races. Return one of the scld_error values to
+ * indicate success/failure. On error, set errno to describe the
+ * problem.
*
* SCLD_VANISHED indicates that one of the ancestor directories of the
* path existed at one point during the function call and then
enum scld_error safe_create_leading_directories(char *path);
enum scld_error safe_create_leading_directories_const(const char *path);
+/*
+ * Callback function for raceproof_create_file(). This function is
+ * expected to do something that makes dirname(path) permanent despite
+ * the fact that other processes might be cleaning up empty
+ * directories at the same time. Usually it will create a file named
+ * path, but alternatively it could create another file in that
+ * directory, or even chdir() into that directory. The function should
+ * return 0 if the action was completed successfully. On error, it
+ * should return a nonzero result and set errno.
+ * raceproof_create_file() treats two errno values specially:
+ *
+ * - ENOENT -- dirname(path) does not exist. In this case,
+ * raceproof_create_file() tries creating dirname(path)
+ * (and any parent directories, if necessary) and calls
+ * the function again.
+ *
+ * - EISDIR -- the file already exists and is a directory. In this
+ * case, raceproof_create_file() removes the directory if
+ * it is empty (and recursively any empty directories that
+ * it contains) and calls the function again.
+ *
+ * Any other errno causes raceproof_create_file() to fail with the
+ * callback's return value and errno.
+ *
+ * Obviously, this function should be OK with being called again if it
+ * fails with ENOENT or EISDIR. In other scenarios it will not be
+ * called again.
+ */
+typedef int create_file_fn(const char *path, void *cb);
+
+/*
+ * Create a file in dirname(path) by calling fn, creating leading
+ * directories if necessary. Retry a few times in case we are racing
+ * with another process that is trying to clean up the directory that
+ * contains path. See the documentation for create_file_fn for more
+ * details.
+ *
+ * Return the value and set the errno that resulted from the most
+ * recent call of fn. fn is always called at least once, and will be
+ * called more than once if it returns ENOENT or EISDIR.
+ */
+int raceproof_create_file(const char *path, create_file_fn fn, void *cb);
+
int mkdir_in_gitdir(const char *path);
-extern char *expand_user_path(const char *path);
+char *expand_user_path(const char *path, int real_home);
const char *enter_repo(const char *path, int strict);
static inline int is_absolute_path(const char *path)
{
return is_dir_sep(path[0]) || has_dos_drive_prefix(path);
}
int is_directory(const char *);
+char *strbuf_realpath(struct strbuf *resolved, const char *path,
+ int die_on_error);
const char *real_path(const char *path);
const char *real_path_if_valid(const char *path);
+char *real_pathdup(const char *path, int die_on_error);
const char *absolute_path(const char *path);
+char *absolute_pathdup(const char *path);
const char *remove_leading_path(const char *in, const char *prefix);
const char *relative_path(const char *in, const char *prefix, struct strbuf *sb);
int normalize_path_copy_len(char *dst, const char *src, int *prefix_len);
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);
-extern int is_ntfs_dotgit(const char *name);
+
+/*
+ * These functions match their is_hfs_dotgit() counterparts; see utf8.h for
+ * details.
+ */
+int is_ntfs_dotgit(const char *name);
+int is_ntfs_dotgitmodules(const char *name);
+int is_ntfs_dotgitignore(const char *name);
+int is_ntfs_dotgitattributes(const char *name);
/*
* Returns true iff "str" could be confused as a command-line option when
* "$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);
+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)
-{
- return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT);
-}
-
-/*
- * This internal function is only declared here for the benefit of
- * lookup_replace_object(). Please do not call it directly.
- */
-extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
-
-/*
- * If object sha1 should be replaced, return the replacement object's
- * name (replaced recursively, if necessary). The return value is
- * either sha1 or a pointer to a permanently-allocated value. When
- * object replacement is suppressed, always return sha1.
- */
-static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
-{
- if (!check_replace_refs)
- return sha1;
- return do_lookup_replace_object(sha1);
-}
-
-static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag)
-{
- if (!(flag & LOOKUP_REPLACE_OBJECT))
- return sha1;
- return lookup_replace_object(sha1);
-}
-
-/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
-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 void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
-extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
-extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
-
-/* global flag to enable extra checks when accessing packed objects */
-extern int do_check_packed_object_crc;
-
-extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
-
-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).
+/**
+ * Return a newly allocated string with the evaluation of
+ * "$XDG_CACHE_HOME/git/$filename" if $XDG_CACHE_HOME is non-empty, otherwise
+ * "$HOME/.cache/git/$filename". Return NULL upon error.
*/
-#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);
-}
+char *xdg_cache_home(const char *filename);
-/* Same as the above, except for struct object_id. */
-extern int has_object_file(const struct object_id *oid);
-extern int has_object_file_with_flags(const struct object_id *oid, int flags);
+int git_open_cloexec(const char *name, int flags);
+#define git_open(name) git_open_cloexec(name, O_RDONLY)
+int unpack_loose_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
+int parse_loose_header(const char *hdr, unsigned long *sizep);
-/*
- * Return true iff an alternate object database has a loose object
- * with the specified name. This function does not respect replace
- * references.
- */
-extern int has_loose_object_nonlocal(const unsigned char *sha1);
+int check_object_signature(const struct object_id *oid, void *buf, unsigned long size, const char *type);
-extern int has_pack_index(const unsigned char *sha1);
+int finalize_object_file(const char *tmpfile, const char *filename);
-extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
+/* Helper to check and "touch" a file */
+int check_and_freshen_file(const char *fn, int freshen);
extern const signed char hexval_table[256];
static inline unsigned int hexval(unsigned char c)
*/
static inline int hex2chr(const char *s)
{
- int val = hexval(s[0]);
- return (val < 0) ? val : (val << 4) | hexval(s[1]);
+ unsigned int val = hexval(s[0]);
+ return (val & ~0xf) ? val : (val << 4) | hexval(s[1]);
}
/* Convert to/from hex/sha1 representation */
#define MINIMUM_ABBREV minimum_abbrev
#define DEFAULT_ABBREV default_abbrev
+/* used when the code does not know or care what the default abbrev is */
+#define FALLBACK_DEFAULT_ABBREV 7
+
struct object_context {
- unsigned char tree[20];
- char path[PATH_MAX];
- unsigned mode;
+ unsigned short 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;
+ /*
+ * If GET_OID_RECORD_PATH is set, this will record path (if any)
+ * found when resolving the name. The caller is responsible for
+ * releasing the memory.
+ */
+ char *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_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);
-extern int get_sha1_committish(const char *str, unsigned char *sha1);
-extern int get_sha1_tree(const char *str, unsigned char *sha1);
-extern int get_sha1_treeish(const char *str, unsigned char *sha1);
-extern int get_sha1_blob(const char *str, unsigned char *sha1);
-extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
-extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
-
-extern int get_oid(const char *str, struct object_id *oid);
+#define GET_OID_QUIETLY 01
+#define GET_OID_COMMIT 02
+#define GET_OID_COMMITTISH 04
+#define GET_OID_TREE 010
+#define GET_OID_TREEISH 020
+#define GET_OID_BLOB 040
+#define GET_OID_FOLLOW_SYMLINKS 0100
+#define GET_OID_RECORD_PATH 0200
+#define GET_OID_ONLY_TO_DIE 04000
+
+#define GET_OID_DISAMBIGUATORS \
+ (GET_OID_COMMIT | GET_OID_COMMITTISH | \
+ GET_OID_TREE | GET_OID_TREEISH | \
+ GET_OID_BLOB)
+
+enum get_oid_result {
+ FOUND = 0,
+ MISSING_OBJECT = -1, /* The requested object is missing */
+ SHORT_NAME_AMBIGUOUS = -2,
+ /* The following only apply when symlinks are followed */
+ DANGLING_SYMLINK = -4, /*
+ * The initial symlink is there, but
+ * (transitively) points to a missing
+ * in-tree file
+ */
+ SYMLINK_LOOP = -5,
+ NOT_DIR = -6, /*
+ * Somewhere along the symlink chain, a path is
+ * requested which contains a file as a
+ * non-final element.
+ */
+};
-typedef int each_abbrev_fn(const unsigned char *sha1, void *);
-extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
+int repo_get_oid(struct repository *r, const char *str, struct object_id *oid);
+int get_oidf(struct object_id *oid, const char *fmt, ...);
+int repo_get_oid_commit(struct repository *r, const char *str, struct object_id *oid);
+int repo_get_oid_committish(struct repository *r, const char *str, struct object_id *oid);
+int repo_get_oid_tree(struct repository *r, const char *str, struct object_id *oid);
+int repo_get_oid_treeish(struct repository *r, const char *str, struct object_id *oid);
+int repo_get_oid_blob(struct repository *r, const char *str, struct object_id *oid);
+int repo_get_oid_mb(struct repository *r, const char *str, struct object_id *oid);
+void maybe_die_on_misspelt_object_name(struct repository *repo,
+ const char *name,
+ const char *prefix);
+enum get_oid_result get_oid_with_context(struct repository *repo, const char *str,
+ unsigned flags, struct object_id *oid,
+ struct object_context *oc);
+
+#define get_oid(str, oid) repo_get_oid(the_repository, str, oid)
+#define get_oid_commit(str, oid) repo_get_oid_commit(the_repository, str, oid)
+#define get_oid_committish(str, oid) repo_get_oid_committish(the_repository, str, oid)
+#define get_oid_tree(str, oid) repo_get_oid_tree(the_repository, str, oid)
+#define get_oid_treeish(str, oid) repo_get_oid_treeish(the_repository, str, oid)
+#define get_oid_blob(str, oid) repo_get_oid_blob(the_repository, str, oid)
+#define get_oid_mb(str, oid) repo_get_oid_mb(the_repository, str, oid)
+
+typedef int each_abbrev_fn(const struct object_id *oid, void *);
+int repo_for_each_abbrev(struct repository *r, const char *prefix, each_abbrev_fn, void *);
+#define for_each_abbrev(prefix, fn, data) repo_for_each_abbrev(the_repository, prefix, fn, data)
+
+int set_disambiguate_hint_config(const char *var, const char *value);
/*
* Try to read a SHA1 in hexadecimal format from the 40 characters
* input, so it is safe to pass this function an arbitrary
* null-terminated string.
*/
-extern int get_sha1_hex(const char *hex, unsigned char *sha1);
-extern int get_oid_hex(const char *hex, struct object_id *sha1);
+int get_sha1_hex(const char *hex, unsigned char *sha1);
+int get_oid_hex(const char *hex, struct object_id *sha1);
+
+/*
+ * Read `len` pairs of hexadecimal digits from `hex` and write the
+ * values to `binary` as `len` bytes. Return 0 on success, or -1 if
+ * the input does not consist of hex digits).
+ */
+int hex_to_bytes(unsigned char *binary, const char *hex, size_t len);
/*
- * Convert a binary sha1 to its hex equivalent. The `_r` variant is reentrant,
+ * Convert a binary hash in "unsigned char []" or an object name in
+ * "struct object_id *" 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
+ * least `GIT_MAX_HEXSZ + 1` bytes, and returns a pointer to out for
* convenience.
*
* 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:
*
- * printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two));
+ * printf("%s -> %s", hash_to_hex(one), hash_to_hex(two));
+ * printf("%s -> %s", oid_to_hex(one), oid_to_hex(two));
*/
-extern char *sha1_to_hex_r(char *out, const unsigned char *sha1);
-extern char *oid_to_hex_r(char *out, const struct object_id *oid);
-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 */
+char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash, const struct git_hash_algo *);
+char *oid_to_hex_r(char *out, const struct object_id *oid);
+char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *); /* static buffer result! */
+char *hash_to_hex(const unsigned char *hash); /* same static buffer */
+char *oid_to_hex(const struct object_id *oid); /* same static buffer */
-extern int interpret_branch_name(const char *str, int len, struct strbuf *);
-extern int get_sha1_mb(const char *str, unsigned char *sha1);
-
-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 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,
- const char *required_type,
- unsigned long *size,
- unsigned char *sha1_ret);
+/*
+ * Parse a 40-character hexadecimal object ID starting from hex, updating the
+ * pointer specified by end when parsing stops. The resulting object ID is
+ * stored in oid. Returns 0 on success. Parsing will stop on the first NUL or
+ * other invalid character. end is only updated on success; otherwise, it is
+ * unmodified.
+ */
+int parse_oid_hex(const char *hex, struct object_id *oid, const char **end);
-extern struct object *peel_to_type(const char *name, int namelen,
- struct object *o, enum object_type);
+/*
+ * This reads short-hand syntax that not only evaluates to a commit
+ * object name, but also can act as if the end user spelled the name
+ * of the branch from the command line.
+ *
+ * - "@{-N}" finds the name of the Nth previous branch we were on, and
+ * places the name of the branch in the given buf and returns the
+ * number of characters parsed if successful.
+ *
+ * - "<branch>@{upstream}" finds the name of the other ref that
+ * <branch> is configured to merge with (missing <branch> defaults
+ * to the current branch), and places the name of the branch in the
+ * given buf and returns the number of characters parsed if
+ * successful.
+ *
+ * If the input is not of the accepted format, it returns a negative
+ * number to signal an error.
+ *
+ * If the input was ok but there are not N branch switches in the
+ * reflog, it returns 0.
+ *
+ * If "allowed" is non-zero, it is a treated as a bitfield of allowable
+ * expansions: local branches ("refs/heads/"), remote branches
+ * ("refs/remotes/"), or "HEAD". If no "allowed" bits are set, any expansion is
+ * allowed, even ones to refs outside of those namespaces.
+ */
+#define INTERPRET_BRANCH_LOCAL (1<<0)
+#define INTERPRET_BRANCH_REMOTE (1<<1)
+#define INTERPRET_BRANCH_HEAD (1<<2)
+int repo_interpret_branch_name(struct repository *r,
+ const char *str, int len,
+ struct strbuf *buf,
+ unsigned allowed);
+#define interpret_branch_name(str, len, buf, allowed) \
+ repo_interpret_branch_name(the_repository, str, len, buf, allowed)
+
+int validate_headref(const char *ref);
+
+int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
+int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
+int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
+int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
+
+void *read_object_with_reference(struct repository *r,
+ const struct object_id *oid,
+ const char *required_type,
+ unsigned long *size,
+ struct object_id *oid_ret);
+
+struct object *repo_peel_to_type(struct repository *r,
+ const char *name, int namelen,
+ struct object *o, enum object_type);
+#define peel_to_type(name, namelen, obj, type) \
+ repo_peel_to_type(the_repository, name, namelen, obj, type)
+
+enum date_mode_type {
+ DATE_NORMAL = 0,
+ DATE_HUMAN,
+ DATE_RELATIVE,
+ DATE_SHORT,
+ DATE_ISO8601,
+ DATE_ISO8601_STRICT,
+ DATE_RFC2822,
+ DATE_STRFTIME,
+ DATE_RAW,
+ DATE_UNIX
+};
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,
- DATE_UNIX
- } type;
+ enum date_mode_type type;
const char *strftime_fmt;
int local;
};
#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,
+const char *show_date(timestamp_t time, int timezone, const struct date_mode *mode);
+void show_date_relative(timestamp_t time, struct strbuf *timebuf);
+void show_date_human(timestamp_t time, int tz, const struct timeval *now,
struct strbuf *timebuf);
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);
+int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset);
+int parse_expiry_date(const char *date, timestamp_t *timestamp);
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);
+timestamp_t approxidate_careful(const char *, int *);
+timestamp_t approxidate_relative(const char *date);
void parse_date_format(const char *format, struct date_mode *mode);
-int date_overflows(unsigned long date);
+int date_overflows(timestamp_t date);
#define IDENT_STRICT 1
#define IDENT_NO_DATE 2
#define IDENT_NO_NAME 4
-extern const char *git_author_info(int);
-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 git_ident_config(const char *, const char *, void *);
-extern void reset_ident_date(void);
+
+enum want_ident {
+ WANT_BLANK_IDENT,
+ WANT_AUTHOR_IDENT,
+ WANT_COMMITTER_IDENT
+};
+
+const char *git_author_info(int);
+const char *git_committer_info(int);
+const char *fmt_ident(const char *name, const char *email,
+ enum want_ident whose_ident,
+ const char *date_str, int);
+const char *fmt_name(enum want_ident);
+const char *ident_default_name(void);
+const char *ident_default_email(void);
+const char *git_editor(void);
+const char *git_sequence_editor(void);
+const char *git_pager(int stdout_is_tty);
+int is_terminal_dumb(void);
+int git_ident_config(const char *, const char *, void *);
+/*
+ * Prepare an ident to fall back on if the user didn't configure it.
+ */
+void prepare_fallback_ident(const char *name, const char *email);
+void reset_ident_date(void);
struct ident_split {
const char *name_begin;
* Signals an success with 0, but time part of the result may be NULL
* if the input lacks timestamp and zone
*/
-extern int split_ident_line(struct ident_split *, const char *, int);
+int split_ident_line(struct ident_split *, const char *, int);
/*
* Like show_date, but pull the timestamp and tz parameters from
* Because there are two fields, we must choose one as the primary key; we
* currently arbitrarily pick the email.
*/
-extern int ident_cmp(const struct ident_split *, const struct ident_split *);
+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;
+ struct delayed_checkout *delayed_checkout;
unsigned force:1,
quiet:1,
not_new:1,
+ clone:1,
refresh_cache:1;
};
+#define CHECKOUT_INIT { NULL, "" }
#define TEMPORARY_FILENAME_LENGTH 25
-extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
+int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath, int *nr_checkouts);
+void enable_delayed_checkout(struct checkout *state);
+int finish_delayed_checkout(struct checkout *state, int *nr_checkouts);
+/*
+ * Unlink the last component and schedule the leading directories for
+ * removal, such that empty directories get removed.
+ */
+void unlink_entry(const struct cache_entry *ce);
struct cache_def {
struct strbuf path;
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 int check_leading_path(const char *name, int len);
-extern int has_dirs_only_path(const char *name, int len, int prefix_len);
-extern void schedule_dir_for_removal(const char *name, int len);
-extern void remove_scheduled_dirs(void);
-
-extern struct alternate_object_database {
- struct alternate_object_database *next;
- char *name;
- char base[FLEX_ARRAY]; /* more */
-} *alt_odb_list;
-extern void prepare_alt_odb(void);
-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 int foreach_alt_odb(alt_odb_fn, void*);
+int has_symlink_leading_path(const char *name, int len);
+int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
+int check_leading_path(const char *name, int len);
+int has_dirs_only_path(const char *name, int len, int prefix_len);
+void schedule_dir_for_removal(const char *name, int len);
+void remove_scheduled_dirs(void);
struct pack_window {
struct pack_window *next;
unsigned int inuse_cnt;
};
-extern struct packed_git {
- struct packed_git *next;
- struct pack_window *windows;
- off_t pack_size;
- const void *index_data;
- size_t index_size;
- uint32_t num_objects;
- uint32_t num_bad_objects;
- unsigned char *bad_object_sha1;
- int index_version;
- time_t mtime;
- int pack_fd;
- unsigned pack_local:1,
- pack_keep:1,
- freshened:1,
- do_not_close:1;
- unsigned char sha1[20];
- struct revindex_entry *revindex;
- /* something like ".git/objects/pack/xxxxx.pack" */
- char pack_name[FLEX_ARRAY]; /* more */
-} *packed_git;
-
-/*
- * A most-recently-used ordered version of the packed_git list, which can
- * be iterated instead of packed_git (and marked via mru_mark).
- */
-struct mru;
-extern struct mru *packed_git_mru;
-
struct pack_entry {
off_t offset;
- unsigned char sha1[20];
struct packed_git *p;
};
-extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_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 void install_packed_git(struct packed_git *pack);
-
-extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
- struct packed_git *packs);
-
-extern void pack_report(void);
-
/*
- * mmap the index file for the specified packfile (if it is not
- * already mmapped). Return 0 on success.
+ * Create a temporary file rooted in the object database directory, or
+ * die on failure. The filename is taken from "pattern", which should have the
+ * usual "XXXXXX" trailer, and the resulting filename is written into the
+ * "template" buffer. Returns the open descriptor.
*/
-extern int open_pack_index(struct packed_git *);
+int odb_mkstemp(struct strbuf *temp_filename, const char *pattern);
/*
- * munmap the index file for the specified packfile (if it is
- * currently mmapped).
- */
-extern void close_pack_index(struct packed_git *);
-
-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 clear_delta_base_cache(void);
-extern struct packed_git *add_packed_git(const char *path, size_t path_len, int local);
-
-/*
- * Make sure that a pointer access into an mmap'd index file is within bounds,
- * and can provide at least 8 bytes of data.
- *
- * Note that this is only necessary for variable-length segments of the file
- * (like the 64-bit extended offset table), as we compare the size to the
- * fixed-length parts when we open the file.
- */
-extern void check_pack_index_ptr(const struct packed_git *p, const void *ptr);
-
-/*
- * Return the SHA-1 of the nth object within the specified packfile.
- * Open the index if it is not already open. The return value points
- * at the SHA-1 within the mmapped index. Return NULL if there is an
+ * Create a pack .keep file named "name" (which should generally be the output
+ * of odb_pack_name). Returns a file descriptor opened for writing, or -1 on
* error.
*/
-extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n);
-
-/*
- * Return the offset of the nth object within the specified packfile.
- * The index must already be opened.
- */
-extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n);
-
-/*
- * If the object named sha1 is present in the specified packfile,
- * return its offset within the packfile; otherwise, return 0.
- */
-extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *);
-
-extern int is_pack_valid(struct packed_git *);
-extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
-extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
-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 *);
+int odb_pack_keep(const char *name);
/*
- * 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.
+ * Set this to 0 to prevent oid_object_info_extended() from fetching missing
+ * blobs. This has a difference only if extensions.partialClone is set.
*
- * - 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;
- off_t *disk_sizep;
- unsigned char *delta_base_sha1;
- struct strbuf *typename;
-
- /* Response */
- enum {
- OI_CACHED,
- OI_LOOSE,
- OI_PACKED,
- OI_DBCACHED
- } whence;
- union {
- /*
- * struct {
- * ... Nothing to expose in this case
- * } cached;
- * struct {
- * ... Nothing to expose in this case
- * } loose;
- */
- struct {
- struct packed_git *pack;
- off_t offset;
- unsigned int is_delta;
- } packed;
- } u;
-};
-extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
-
-/* Dumb servers support */
-extern int update_server_info(int);
-
-/* git_config_parse_key() returns these negated: */
-#define CONFIG_INVALID_KEY 1
-#define CONFIG_NO_SECTION_OR_NAME 2
-/* git_config_set_gently(), git_config_set_multivar_gently() return the above or these: */
-#define CONFIG_NO_LOCK -1
-#define CONFIG_INVALID_FILE 3
-#define CONFIG_NO_WRITE 4
-#define CONFIG_NOTHING_SET 5
-#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 *blob;
-};
-
-enum config_origin_type {
- CONFIG_ORIGIN_BLOB,
- CONFIG_ORIGIN_FILE,
- CONFIG_ORIGIN_STDIN,
- CONFIG_ORIGIN_SUBMODULE_BLOB,
- CONFIG_ORIGIN_CMDLINE
-};
-
-typedef int (*config_fn_t)(const char *, const char *, void *);
-extern int git_default_config(const char *, const char *, void *);
-extern int git_config_from_file(config_fn_t fn, const char *, void *);
-extern int git_config_from_mem(config_fn_t fn, const enum config_origin_type,
- const char *name, 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 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_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_bool_or_int(const char *, const char *, int *);
-extern int git_config_bool(const char *, const char *);
-extern int git_config_maybe_bool(const char *, const char *);
-extern int git_config_string(const char **, const char *, const char *);
-extern int git_config_pathname(const char **, const char *, const char *);
-extern int git_config_set_in_file_gently(const char *, const char *, const char *);
-extern void git_config_set_in_file(const char *, const char *, const char *);
-extern int git_config_set_gently(const char *, const char *);
-extern void 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_gently(const char *, const char *, const char *, int);
-extern void git_config_set_multivar(const char *, const char *, const char *, int);
-extern int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, int);
-extern void 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 int git_config_rename_section_in_file(const char *, const char *, const char *);
-extern const char *git_etc_gitconfig(void);
-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__)
-#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);
-
-extern int git_config_parse_parameter(const char *, config_fn_t fn, void *data);
-
-enum config_scope {
- CONFIG_SCOPE_UNKNOWN = 0,
- CONFIG_SCOPE_SYSTEM,
- CONFIG_SCOPE_GLOBAL,
- CONFIG_SCOPE_REPO,
- CONFIG_SCOPE_CMDLINE,
-};
-
-extern enum config_scope current_config_scope(void);
-extern const char *current_config_origin_type(void);
-extern const char *current_config_name(void);
-
-struct config_include_data {
- int depth;
- config_fn_t fn;
- void *data;
-};
-#define CONFIG_INCLUDE_INIT { 0 }
-extern int git_config_include(const char *name, const char *value, void *data);
-
-/*
- * 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);
-
-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)
+ * Its default value is 1.
*/
-struct configset_list {
- struct configset_list_item *items;
- unsigned int nr, alloc;
-};
+extern int fetch_if_missing;
-struct config_set {
- struct hashmap config_hash;
- int hash_initialized;
- struct configset_list list;
-};
+/* Dumb servers support */
+int update_server_info(int);
-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);
-extern int git_config_get_untracked_cache(void);
+const char *get_log_output_encoding(void);
+const char *get_commit_output_encoding(void);
/*
* This is a hack for test programs like test-dump-untracked-cache to
*/
extern int ignore_untracked_cache_config;
-struct key_value_info {
- const char *filename;
- int linenr;
- enum config_origin_type origin_type;
- enum config_scope scope;
-};
-
-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);
+int committer_ident_sufficiently_given(void);
+int author_ident_sufficiently_given(void);
extern const char *git_commit_encoding;
extern const char *git_log_output_encoding;
extern const char *git_mailmap_blob;
/* IO helper functions */
-extern void maybe_flush_or_die(FILE *, const char *);
+void maybe_flush_or_die(FILE *, const char *);
__attribute__((format (printf, 2, 3)))
-extern void fprintf_or_die(FILE *, const char *fmt, ...);
+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);
+int copy_fd(int ifd, int ofd);
+int copy_file(const char *dst, const char *src, int mode);
+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 void fsync_or_die(int fd, const char *);
+void write_or_die(int fd, const void *buf, size_t count);
+void fsync_or_die(int fd, const char *);
-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);
+ssize_t read_in_full(int fd, void *buf, size_t count);
+ssize_t write_in_full(int fd, const void *buf, size_t count);
+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)
{
* Open (and truncate) the file at path, write the contents of buf to it,
* and close it. Dies if any errors are encountered.
*/
-extern void write_file_buf(const char *path, const char *buf, size_t len);
+void write_file_buf(const char *path, const char *buf, size_t len);
/**
* Like write_file_buf(), but format the contents into a buffer first.
* write_file(path, "counter: %d", ctr);
*/
__attribute__((format (printf, 2, 3)))
-extern void write_file(const char *path, const char *fmt, ...);
+void write_file(const char *path, const char *fmt, ...);
/* pager.c */
-extern void setup_pager(void);
-extern const char *pager_program;
-extern int pager_in_use(void);
+void setup_pager(void);
+int pager_in_use(void);
extern int pager_use_color;
-extern int term_columns(void);
-extern int decimal_width(uintmax_t);
-extern int check_pager_config(const char *cmd);
-extern void prepare_pager_args(struct child_process *, const char *pager);
+int term_columns(void);
+void term_clear_line(void);
+int decimal_width(uintmax_t);
+int check_pager_config(const char *cmd);
+void prepare_pager_args(struct child_process *, const char *pager);
extern const char *editor_program;
extern const char *askpass_program;
int decode_85(char *dst, const char *line, int linelen);
void encode_85(char *buf, const unsigned char *data, int bytes);
-/* alloc.c */
-extern void *alloc_blob_node(void);
-extern void *alloc_tree_node(void);
-extern void *alloc_commit_node(void);
-extern void *alloc_tag_node(void);
-extern void *alloc_object_node(void);
-extern void alloc_report(void);
-extern unsigned int alloc_commit_index(void);
-
/* pkt-line.c */
void packet_trace_identity(const char *prog);
extern int diff_auto_refresh_index;
/* match-trees.c */
-void shift_tree(const struct object_id *, const struct object_id *, struct object_id *, int);
-void shift_tree_by(const struct object_id *, const struct object_id *, struct object_id *, const char *);
+void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int);
+void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *);
/*
* whitespace rules.
#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
#define WS_TAB_WIDTH_MASK 077
+/* All WS_* -- when extended, adapt diff.c emit_symbol */
+#define WS_RULE_MASK 07777
extern unsigned whitespace_rule_cfg;
-extern unsigned whitespace_rule(const char *);
-extern unsigned parse_whitespace_rule(const char *);
-extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
-extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
-extern char *whitespace_error_string(unsigned ws);
-extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
-extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
+unsigned whitespace_rule(struct index_state *, const char *);
+unsigned parse_whitespace_rule(const char *);
+unsigned ws_check(const char *line, int len, unsigned ws_rule);
+void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
+char *whitespace_error_string(unsigned ws);
+void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
+int ws_blank_line(const char *line, int len, unsigned ws_rule);
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
/* ls-files */
-void overlay_tree_on_cache(const char *tree_name, const char *prefix);
-
-char *alias_lookup(const char *alias);
-int split_cmdline(char *cmdline, const char ***argv);
-/* Takes a negative value returned by split_cmdline */
-const char *split_cmdline_strerror(int cmdline_errno);
+void overlay_tree_on_index(struct index_state *istate,
+ const char *tree_name, const char *prefix);
/* setup.c */
struct startup_info {
/* merge.c */
struct commit_list;
-int try_merge_command(const char *strategy, size_t xopts_nr,
+int try_merge_command(struct repository *r,
+ 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 checkout_fast_forward(struct repository *r,
+ const struct object_id *from,
+ const struct object_id *to,
int overwrite_ignore);
*/
void safe_create_dir(const char *dir, int share);
+/*
+ * Should we print an ellipsis after an abbreviated SHA-1 value
+ * when doing diff-raw output or indicating a detached HEAD?
+ */
+int print_sha1_ellipsis(void);
+
+/* Return 1 if the file is empty or does not exists, 0 otherwise. */
+int is_empty_or_missing_file(const char *filename);
+
#endif /* CACHE_H */
projects / platform / upstream / git.git / blobdiff