6 * from git:git-compat-util.h
11 #if defined(__GNUC__) && (__GNUC__ < 3)
14 #define FLEX_ARRAY /* empty */
29 #include <sys/param.h>
30 #include <netinet/in.h>
31 #include <sys/types.h>
36 /* On most systems <limits.h> would have given us this, but
37 * not on some systems (e.g. GNU/Hurd).
44 #define NORETURN __attribute__((__noreturn__))
48 #define __attribute__(x)
53 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
56 static inline char* xstrdup(const char *str)
58 char *ret = strdup(str);
60 die("Out of memory, strdup failed");
64 static inline void *xmalloc(size_t size)
66 void *ret = malloc(size);
70 die("Out of memory, malloc failed");
72 memset(ret, 0xA5, size);
77 static inline void *xrealloc(void *ptr, size_t size)
79 void *ret = realloc(ptr, size);
81 ret = realloc(ptr, 1);
83 die("Out of memory, realloc failed");
87 static inline void *xcalloc(size_t nmemb, size_t size)
89 void *ret = calloc(nmemb, size);
90 if (!ret && (!nmemb || !size))
93 die("Out of memory, calloc failed");
97 static inline ssize_t xread(int fd, void *buf, size_t len)
101 nr = read(fd, buf, len);
102 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
108 static inline ssize_t xwrite(int fd, const void *buf, size_t len)
112 nr = write(fd, buf, len);
113 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
127 /* Convert to/from hex/sha1 representation */
128 #define MINIMUM_ABBREV 4
129 #define DEFAULT_ABBREV 7
131 extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
133 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
135 extern int get_sha1(const char *str, unsigned char *sha1);
136 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
137 extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
147 struct object_list *next;
153 struct object *ref[FLEX_ARRAY]; /* more */
156 struct object_array {
159 struct object_array_entry {
169 * The object type is stored in 3 bits.
174 unsigned type : TYPE_BITS;
175 unsigned flags : FLAG_BITS;
176 unsigned char sha1[20];
185 struct object object;
191 struct tree *lookup_tree(const unsigned char *sha1);
192 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);
193 int parse_tree(struct tree *tree);
194 struct tree *parse_tree_indirect(const unsigned char *sha1);
196 typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const char *, unsigned int, int);
198 extern int read_tree_recursive(struct tree *tree,
199 const char *base, int baselen,
200 int stage, const char **match,
203 extern int read_tree(struct tree *tree, int stage, const char **paths);
206 /* from git:commit.h */
210 struct commit_list *next;
214 struct object object;
217 struct commit_list *parents;
223 struct commit *lookup_commit(const unsigned char *sha1);
224 struct commit *lookup_commit_reference(const unsigned char *sha1);
225 struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
228 int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
229 int parse_commit(struct commit *item);
231 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
232 struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
234 void free_commit_list(struct commit_list *list);
236 void sort_by_date(struct commit_list **list);
242 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
249 CMIT_FMT_UNSPECIFIED,
252 extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
255 typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
256 typedef void* (*topo_sort_get_fn_t)(struct commit*);
268 struct diff_queue_struct;
270 typedef void (*change_fn_t)(struct diff_options *options,
271 unsigned old_mode, unsigned new_mode,
272 const unsigned char *old_sha1,
273 const unsigned char *new_sha1,
274 const char *base, const char *path);
276 typedef void (*add_remove_fn_t)(struct diff_options *options,
277 int addremove, unsigned mode,
278 const unsigned char *sha1,
279 const char *base, const char *path);
281 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
282 struct diff_options *options, void *data);
284 #define DIFF_FORMAT_RAW 0x0001
285 #define DIFF_FORMAT_DIFFSTAT 0x0002
286 #define DIFF_FORMAT_NUMSTAT 0x0004
287 #define DIFF_FORMAT_SUMMARY 0x0008
288 #define DIFF_FORMAT_PATCH 0x0010
290 /* These override all above */
291 #define DIFF_FORMAT_NAME 0x0100
292 #define DIFF_FORMAT_NAME_STATUS 0x0200
293 #define DIFF_FORMAT_CHECKDIFF 0x0400
295 /* Same as output_format = 0 but we know that -s flag was given
296 * and we should not give default value to output_format.
298 #define DIFF_FORMAT_NO_OUTPUT 0x0800
300 #define DIFF_FORMAT_CALLBACK 0x1000
302 struct diff_options {
304 const char *orderfile;
306 const char *single_follow;
307 unsigned recursive:1,
313 find_copies_harder:1,
319 int line_termination;
328 const char *stat_sep;
338 add_remove_fn_t add_remove;
339 diff_format_fn_t format_callback;
340 void *format_callback_data;
361 typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
362 extern int head_ref(each_ref_fn, void *);
363 extern int for_each_ref(each_ref_fn, void *);
364 extern int for_each_tag_ref(each_ref_fn, void *);
365 extern int for_each_branch_ref(each_ref_fn, void *);
366 extern int for_each_remote_ref(each_ref_fn, void *);
371 * from git:revision.h
377 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
381 struct commit_list *commits;
382 struct object_array pending;
384 /* Basic information */
387 prune_fn_t *prune_fn;
389 /* Traversal flags */
390 unsigned int dense:1,
393 remove_empty_trees:1,
402 unpacked:1, /* see also ignore_packed below */
414 dense_combined_merges:1,
415 always_show_header:1;
418 unsigned int shown_one:1,
422 const char **ignore_packed; /* pretend objects in these are unpacked */
423 int num_ignore_packed;
426 enum cmit_fmt commit_format;
427 struct log_info *loginfo;
429 const char *mime_boundary;
430 const char *message_id;
431 const char *ref_message_id;
432 const char *add_signoff;
433 const char *extra_headers;
435 /* Filter by commit log message */
436 struct grep_opt *grep_filter;
440 unsigned long max_age;
441 unsigned long min_age;
443 /* diff info for patches and for paths limiting */
444 struct diff_options diffopt;
445 struct diff_options pruning;
447 topo_sort_set_fn_t topo_setter;
448 topo_sort_get_fn_t topo_getter;
452 extern void init_revisions(struct rev_info *revs, const char *prefix);
453 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
454 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
456 extern void prepare_revision_walk(struct rev_info *revs);
457 extern struct commit *get_revision(struct rev_info *revs);