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-rw-r--r--cache.h143
1 files changed, 128 insertions, 15 deletions
diff --git a/cache.h b/cache.h
index d3b898708b..e230302623 100644
--- a/cache.h
+++ b/cache.h
@@ -3,6 +3,7 @@
#include "git-compat-util.h"
#include "strbuf.h"
+#include "hash.h"
#include SHA1_HEADER
#include <zlib.h>
@@ -94,66 +95,148 @@ struct cache_time {
* We save the fields in big-endian order to allow using the
* index file over NFS transparently.
*/
+struct ondisk_cache_entry {
+ struct cache_time ctime;
+ struct cache_time mtime;
+ unsigned int dev;
+ unsigned int ino;
+ unsigned int mode;
+ unsigned int uid;
+ unsigned int gid;
+ unsigned int size;
+ unsigned char sha1[20];
+ unsigned short flags;
+ char name[FLEX_ARRAY]; /* more */
+};
+
struct cache_entry {
- struct cache_time ce_ctime;
- struct cache_time ce_mtime;
+ unsigned int ce_ctime;
+ unsigned int ce_mtime;
unsigned int ce_dev;
unsigned int ce_ino;
unsigned int ce_mode;
unsigned int ce_uid;
unsigned int ce_gid;
unsigned int ce_size;
+ unsigned int ce_flags;
unsigned char sha1[20];
- unsigned short ce_flags;
+ struct cache_entry *next;
char name[FLEX_ARRAY]; /* more */
};
#define CE_NAMEMASK (0x0fff)
#define CE_STAGEMASK (0x3000)
-#define CE_UPDATE (0x4000)
#define CE_VALID (0x8000)
#define CE_STAGESHIFT 12
-#define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT))
-#define ce_namelen(ce) (CE_NAMEMASK & ntohs((ce)->ce_flags))
+/* In-memory only */
+#define CE_UPDATE (0x10000)
+#define CE_REMOVE (0x20000)
+#define CE_UPTODATE (0x40000)
+
+#define CE_HASHED (0x100000)
+#define CE_UNHASHED (0x200000)
+
+/*
+ * Copy the sha1 and stat state of a cache entry from one to
+ * another. But we never change the name, or the hash state!
+ */
+#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
+static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
+{
+ unsigned int state = dst->ce_flags & CE_STATE_MASK;
+
+ /* Don't copy hash chain and name */
+ memcpy(dst, src, offsetof(struct cache_entry, next));
+
+ /* Restore the hash state */
+ dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
+}
+
+/*
+ * We don't actually *remove* it, we can just mark it invalid so that
+ * we won't find it in lookups.
+ *
+ * Not only would we have to search the lists (simple enough), but
+ * we'd also have to rehash other hash buckets in case this makes the
+ * hash bucket empty (common). So it's much better to just mark
+ * it.
+ */
+static inline void remove_index_entry(struct cache_entry *ce)
+{
+ ce->ce_flags |= CE_UNHASHED;
+}
+
+static inline unsigned create_ce_flags(size_t len, unsigned stage)
+{
+ if (len >= CE_NAMEMASK)
+ len = CE_NAMEMASK;
+ return (len | (stage << CE_STAGESHIFT));
+}
+
+static inline size_t ce_namelen(const struct cache_entry *ce)
+{
+ size_t len = ce->ce_flags & CE_NAMEMASK;
+ if (len < CE_NAMEMASK)
+ return len;
+ return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
+}
+
#define ce_size(ce) cache_entry_size(ce_namelen(ce))
-#define ce_stage(ce) ((CE_STAGEMASK & ntohs((ce)->ce_flags)) >> CE_STAGESHIFT)
+#define ondisk_ce_size(ce) ondisk_cache_entry_size(ce_namelen(ce))
+#define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
+#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
+#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
static inline unsigned int create_ce_mode(unsigned int mode)
{
if (S_ISLNK(mode))
- return htonl(S_IFLNK);
+ return S_IFLNK;
if (S_ISDIR(mode) || S_ISGITLINK(mode))
- return htonl(S_IFGITLINK);
- return htonl(S_IFREG | ce_permissions(mode));
+ return S_IFGITLINK;
+ return S_IFREG | ce_permissions(mode);
}
static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
{
extern int trust_executable_bit, has_symlinks;
if (!has_symlinks && S_ISREG(mode) &&
- ce && S_ISLNK(ntohl(ce->ce_mode)))
+ ce && S_ISLNK(ce->ce_mode))
return ce->ce_mode;
if (!trust_executable_bit && S_ISREG(mode)) {
- if (ce && S_ISREG(ntohl(ce->ce_mode)))
+ if (ce && S_ISREG(ce->ce_mode))
return ce->ce_mode;
return create_ce_mode(0666);
}
return create_ce_mode(mode);
}
+static inline int ce_to_dtype(const struct cache_entry *ce)
+{
+ unsigned ce_mode = ntohl(ce->ce_mode);
+ if (S_ISREG(ce_mode))
+ return DT_REG;
+ else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
+ return DT_DIR;
+ else if (S_ISLNK(ce_mode))
+ return DT_LNK;
+ else
+ return DT_UNKNOWN;
+}
#define canon_mode(mode) \
(S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
#define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
+#define ondisk_cache_entry_size(len) ((offsetof(struct ondisk_cache_entry,name) + (len) + 8) & ~7)
struct index_state {
struct cache_entry **cache;
unsigned int cache_nr, cache_alloc, cache_changed;
struct cache_tree *cache_tree;
time_t timestamp;
- void *mmap;
- size_t mmap_size;
+ void *alloc;
+ unsigned name_hash_initialized : 1;
+ struct hash_table name_hash;
};
extern struct index_state the_index;
@@ -169,6 +252,7 @@ extern struct index_state the_index;
#define read_cache_from(path) read_index_from(&the_index, (path))
#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))
#define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
#define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
@@ -177,6 +261,7 @@ extern struct index_state the_index;
#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL)
#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
+#define cache_name_exists(name, namelen) index_name_exists(&the_index, (name), (namelen))
#endif
enum object_type {
@@ -263,7 +348,9 @@ extern int read_index(struct index_state *);
extern int read_index_from(struct index_state *, const char *path);
extern int write_index(struct index_state *, int newfd);
extern int discard_index(struct index_state *);
+extern int unmerged_index(struct index_state *);
extern int verify_path(const char *path);
+extern int index_name_exists(struct index_state *istate, const char *name, int namelen);
extern int index_name_pos(struct index_state *, const char *name, int namelen);
#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
@@ -331,6 +418,23 @@ extern size_t packed_git_limit;
extern size_t delta_base_cache_limit;
extern int auto_crlf;
+enum safe_crlf {
+ SAFE_CRLF_FALSE = 0,
+ SAFE_CRLF_FAIL = 1,
+ SAFE_CRLF_WARN = 2,
+};
+
+extern enum safe_crlf safe_crlf;
+
+enum branch_track {
+ BRANCH_TRACK_NEVER = 0,
+ BRANCH_TRACK_REMOTE,
+ BRANCH_TRACK_ALWAYS,
+ BRANCH_TRACK_EXPLICIT,
+};
+
+extern enum branch_track git_branch_track;
+
#define GIT_REPO_VERSION 0
extern int repository_format_version;
extern int check_repository_format(void);
@@ -591,6 +695,9 @@ extern int git_config_set_multivar(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);
+extern int git_env_bool(const char *, int);
+extern int git_config_system(void);
+extern int git_config_global(void);
extern int config_error_nonbool(const char *);
#define MAX_GITNAME (1000)
@@ -603,6 +710,7 @@ extern const char *git_log_output_encoding;
/* IO helper functions */
extern void maybe_flush_or_die(FILE *, const char *);
extern int copy_fd(int ifd, int ofd);
+extern int copy_file(const char *dst, const char *src, int mode);
extern int read_in_full(int fd, void *buf, size_t count);
extern int write_in_full(int fd, const void *buf, size_t count);
extern void write_or_die(int fd, const void *buf, size_t count);
@@ -636,7 +744,8 @@ extern void trace_argv_printf(const char **argv, const char *format, ...);
/* convert.c */
/* returns 1 if *dst was used */
-extern int convert_to_git(const char *path, const char *src, size_t len, struct strbuf *dst);
+extern int convert_to_git(const char *path, const char *src, size_t len,
+ struct strbuf *dst, enum safe_crlf checksafe);
extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
/* add */
@@ -655,6 +764,7 @@ void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, i
#define WS_TRAILING_SPACE 01
#define WS_SPACE_BEFORE_TAB 02
#define WS_INDENT_WITH_NON_TAB 04
+#define WS_CR_AT_EOL 010
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
extern unsigned whitespace_rule_cfg;
extern unsigned whitespace_rule(const char *);
@@ -663,10 +773,13 @@ extern unsigned check_and_emit_line(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 int ws_fix_copy(char *, const char *, int, unsigned, int *);
/* ls-files */
int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);
int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
void overlay_tree_on_cache(const char *tree_name, const char *prefix);
+char *alias_lookup(const char *alias);
+
#endif /* CACHE_H */
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