| -rw-r--r-- | git.h | 68 |
1 files changed, 67 insertions, 1 deletions
@@ -1,222 +1,288 @@ #ifndef GIT_H #define GIT_H /* * from git:git-compat-util.h */ #ifndef FLEX_ARRAY #if defined(__GNUC__) && (__GNUC__ < 3) #define FLEX_ARRAY 0 #else #define FLEX_ARRAY /* empty */ #endif #endif #include <unistd.h> #include <stdio.h> #include <sys/stat.h> #include <fcntl.h> #include <stddef.h> #include <stdlib.h> #include <stdarg.h> #include <string.h> #include <errno.h> #include <limits.h> #include <sys/param.h> #include <netinet/in.h> #include <sys/types.h> #include <dirent.h> #include <time.h> - +#include <regex.h> /* On most systems <limits.h> would have given us this, but * not on some systems (e.g. GNU/Hurd). */ #ifndef PATH_MAX #define PATH_MAX 4096 #endif #ifdef __GNUC__ #define NORETURN __attribute__((__noreturn__)) #else #define NORETURN #ifndef __attribute__ #define __attribute__(x) #endif #endif extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); static inline char* xstrdup(const char *str) { char *ret = strdup(str); if (!ret) die("Out of memory, strdup failed"); return ret; } static inline void *xmalloc(size_t size) { void *ret = malloc(size); if (!ret && !size) ret = malloc(1); if (!ret) die("Out of memory, malloc failed"); #ifdef XMALLOC_POISON memset(ret, 0xA5, size); #endif return ret; } static inline void *xrealloc(void *ptr, size_t size) { void *ret = realloc(ptr, size); if (!ret && !size) ret = realloc(ptr, 1); if (!ret) die("Out of memory, realloc failed"); return ret; } static inline void *xcalloc(size_t nmemb, size_t size) { void *ret = calloc(nmemb, size); if (!ret && (!nmemb || !size)) ret = calloc(1, 1); if (!ret) die("Out of memory, calloc failed"); return ret; } static inline ssize_t xread(int fd, void *buf, size_t len) { ssize_t nr; while (1) { nr = read(fd, buf, len); if ((nr < 0) && (errno == EAGAIN || errno == EINTR)) continue; return nr; } } static inline ssize_t xwrite(int fd, const void *buf, size_t len) { ssize_t nr; while (1) { nr = write(fd, buf, len); if ((nr < 0) && (errno == EAGAIN || errno == EINTR)) continue; return nr; } } /* * from git:cache.h */ /* Convert to/from hex/sha1 representation */ #define MINIMUM_ABBREV 4 #define DEFAULT_ABBREV 7 extern const unsigned char null_sha1[20]; extern int sha1_object_info(const unsigned char *, char *, unsigned long *); extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size); extern int get_sha1(const char *str, unsigned char *sha1); extern int get_sha1_hex(const char *hex, unsigned char *sha1); extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ static inline int is_null_sha1(const unsigned char *sha1) { return !memcmp(sha1, null_sha1, 20); } static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) { return memcmp(sha1, sha2, 20); } static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) { memcpy(sha_dst, sha_src, 20); } static inline void hashclr(unsigned char *hash) { memset(hash, 0, 20); } +/* + * from git:grep.h + */ + +enum grep_pat_token { + GREP_PATTERN, + GREP_PATTERN_HEAD, + GREP_PATTERN_BODY, + GREP_AND, + GREP_OPEN_PAREN, + GREP_CLOSE_PAREN, + GREP_NOT, + GREP_OR, +}; + +enum grep_context { + GREP_CONTEXT_HEAD, + GREP_CONTEXT_BODY, +}; + +struct grep_pat { + struct grep_pat *next; + const char *origin; + int no; + enum grep_pat_token token; + const char *pattern; + regex_t regexp; +}; + +enum grep_expr_node { + GREP_NODE_ATOM, + GREP_NODE_NOT, + GREP_NODE_AND, + GREP_NODE_OR, +}; + +struct grep_opt { + struct grep_pat *pattern_list; + struct grep_pat **pattern_tail; + struct grep_expr *pattern_expression; + int prefix_length; + regex_t regexp; + unsigned linenum:1; + unsigned invert:1; + unsigned status_only:1; + unsigned name_only:1; + unsigned unmatch_name_only:1; + unsigned count:1; + unsigned word_regexp:1; + unsigned fixed:1; + unsigned all_match:1; +#define GREP_BINARY_DEFAULT 0 +#define GREP_BINARY_NOMATCH 1 +#define GREP_BINARY_TEXT 2 + unsigned binary:2; + unsigned extended:1; + unsigned relative:1; + unsigned pathname:1; + int regflags; + unsigned pre_context; + unsigned post_context; +}; + + +extern void compile_grep_patterns(struct grep_opt *opt); +extern void free_grep_patterns(struct grep_opt *opt); /* * from git:object.h */ struct object_list { struct object *item; struct object_list *next; }; struct object_refs { unsigned count; struct object *base; struct object *ref[FLEX_ARRAY]; /* more */ }; struct object_array { unsigned int nr; unsigned int alloc; struct object_array_entry { struct object *item; const char *name; } *objects; }; #define TYPE_BITS 3 #define FLAG_BITS 27 /* * The object type is stored in 3 bits. */ struct object { unsigned parsed : 1; unsigned used : 1; unsigned type : TYPE_BITS; unsigned flags : FLAG_BITS; unsigned char sha1[20]; }; /* * from git:tree.h */ struct tree { struct object object; void *buffer; unsigned long size; }; struct tree *lookup_tree(const unsigned char *sha1); int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size); int parse_tree(struct tree *tree); struct tree *parse_tree_indirect(const unsigned char *sha1); typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const char *, unsigned int, int); extern int read_tree_recursive(struct tree *tree, const char *base, int baselen, int stage, const char **match, read_tree_fn_t fn); |