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-rw-r--r--git.h399
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1#ifndef GIT_H
2#define GIT_H
3
4
5/*
6 * from git:git-compat-util.h
7 */
8
9
10#ifndef FLEX_ARRAY
11#if defined(__GNUC__) && (__GNUC__ < 3)
12#define FLEX_ARRAY 0
13#else
14#define FLEX_ARRAY /* empty */
15#endif
16#endif
17
18
19#include <unistd.h>
20#include <stdio.h>
21#include <sys/stat.h>
22#include <fcntl.h>
23#include <stddef.h>
24#include <stdlib.h>
25#include <stdarg.h>
26#include <string.h>
27#include <errno.h>
28#include <limits.h>
29#include <sys/param.h>
30#include <netinet/in.h>
31#include <sys/types.h>
32#include <dirent.h>
33#include <time.h>
34
35
36static inline char* xstrdup(const char *str)
37{
38 char *ret = strdup(str);
39 if (!ret)
40 die("Out of memory, strdup failed");
41 return ret;
42}
43
44static inline void *xmalloc(size_t size)
45{
46 void *ret = malloc(size);
47 if (!ret && !size)
48 ret = malloc(1);
49 if (!ret)
50 die("Out of memory, malloc failed");
51#ifdef XMALLOC_POISON
52 memset(ret, 0xA5, size);
53#endif
54 return ret;
55}
56
57static inline void *xrealloc(void *ptr, size_t size)
58{
59 void *ret = realloc(ptr, size);
60 if (!ret && !size)
61 ret = realloc(ptr, 1);
62 if (!ret)
63 die("Out of memory, realloc failed");
64 return ret;
65}
66
67static inline void *xcalloc(size_t nmemb, size_t size)
68{
69 void *ret = calloc(nmemb, size);
70 if (!ret && (!nmemb || !size))
71 ret = calloc(1, 1);
72 if (!ret)
73 die("Out of memory, calloc failed");
74 return ret;
75}
76
77static inline ssize_t xread(int fd, void *buf, size_t len)
78{
79 ssize_t nr;
80 while (1) {
81 nr = read(fd, buf, len);
82 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
83 continue;
84 return nr;
85 }
86}
87
88static inline ssize_t xwrite(int fd, const void *buf, size_t len)
89{
90 ssize_t nr;
91 while (1) {
92 nr = write(fd, buf, len);
93 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
94 continue;
95 return nr;
96 }
97}
98
99
100
101
102/*
103 * from git:cache.h
104 */
105
106
107/* Convert to/from hex/sha1 representation */
108#define MINIMUM_ABBREV 4
109#define DEFAULT_ABBREV 7
110
111
112extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
113
114
115
116
117/*
118 * from git:object.h
119 */
120
121struct object_list {
122 struct object *item;
123 struct object_list *next;
124};
125
126struct object_refs {
127 unsigned count;
128 struct object *base;
129 struct object *ref[FLEX_ARRAY]; /* more */
130};
131
132struct object_array {
133 unsigned int nr;
134 unsigned int alloc;
135 struct object_array_entry {
136 struct object *item;
137 const char *name;
138 } *objects;
139};
140
141#define TYPE_BITS 3
142#define FLAG_BITS 27
143
144/*
145 * The object type is stored in 3 bits.
146 */
147struct object {
148 unsigned parsed : 1;
149 unsigned used : 1;
150 unsigned type : TYPE_BITS;
151 unsigned flags : FLAG_BITS;
152 unsigned char sha1[20];
153};
154
155
156/*
157 * from git:tree.h
158 */
159
160struct tree {
161 struct object object;
162 void *buffer;
163 unsigned long size;
164};
165
166
167
168
169/* from git:commit.h */
170
171struct commit_list {
172 struct commit *item;
173 struct commit_list *next;
174};
175
176struct commit {
177 struct object object;
178 void *util;
179 unsigned long date;
180 struct commit_list *parents;
181 struct tree *tree;
182 char *buffer;
183};
184
185
186/* Commit formats */
187enum cmit_fmt {
188 CMIT_FMT_RAW,
189 CMIT_FMT_MEDIUM,
190 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
191 CMIT_FMT_SHORT,
192 CMIT_FMT_FULL,
193 CMIT_FMT_FULLER,
194 CMIT_FMT_ONELINE,
195 CMIT_FMT_EMAIL,
196
197 CMIT_FMT_UNSPECIFIED,
198};
199
200
201
202struct commit *lookup_commit(const unsigned char *sha1);
203struct commit *lookup_commit_reference(const unsigned char *sha1);
204struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
205 int quiet);
206
207typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
208typedef void* (*topo_sort_get_fn_t)(struct commit*);
209
210
211
212
213/*
214 * from git:diff.h
215 */
216
217
218struct rev_info;
219struct diff_options;
220struct diff_queue_struct;
221
222typedef void (*change_fn_t)(struct diff_options *options,
223 unsigned old_mode, unsigned new_mode,
224 const unsigned char *old_sha1,
225 const unsigned char *new_sha1,
226 const char *base, const char *path);
227
228typedef void (*add_remove_fn_t)(struct diff_options *options,
229 int addremove, unsigned mode,
230 const unsigned char *sha1,
231 const char *base, const char *path);
232
233typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
234 struct diff_options *options, void *data);
235
236#define DIFF_FORMAT_RAW 0x0001
237#define DIFF_FORMAT_DIFFSTAT 0x0002
238#define DIFF_FORMAT_NUMSTAT 0x0004
239#define DIFF_FORMAT_SUMMARY 0x0008
240#define DIFF_FORMAT_PATCH 0x0010
241
242/* These override all above */
243#define DIFF_FORMAT_NAME 0x0100
244#define DIFF_FORMAT_NAME_STATUS 0x0200
245#define DIFF_FORMAT_CHECKDIFF 0x0400
246
247/* Same as output_format = 0 but we know that -s flag was given
248 * and we should not give default value to output_format.
249 */
250#define DIFF_FORMAT_NO_OUTPUT 0x0800
251
252#define DIFF_FORMAT_CALLBACK 0x1000
253
254struct diff_options {
255 const char *filter;
256 const char *orderfile;
257 const char *pickaxe;
258 const char *single_follow;
259 unsigned recursive:1,
260 tree_in_recursive:1,
261 binary:1,
262 text:1,
263 full_index:1,
264 silent_on_remove:1,
265 find_copies_harder:1,
266 color_diff:1,
267 color_diff_words:1;
268 int context;
269 int break_opt;
270 int detect_rename;
271 int line_termination;
272 int output_format;
273 int pickaxe_opts;
274 int rename_score;
275 int reverse_diff;
276 int rename_limit;
277 int setup;
278 int abbrev;
279 const char *msg_sep;
280 const char *stat_sep;
281 long xdl_opts;
282
283 int stat_width;
284 int stat_name_width;
285
286 int nr_paths;
287 const char **paths;
288 int *pathlens;
289 change_fn_t change;
290 add_remove_fn_t add_remove;
291 diff_format_fn_t format_callback;
292 void *format_callback_data;
293};
294
295enum color_diff {
296 DIFF_RESET = 0,
297 DIFF_PLAIN = 1,
298 DIFF_METAINFO = 2,
299 DIFF_FRAGINFO = 3,
300 DIFF_FILE_OLD = 4,
301 DIFF_FILE_NEW = 5,
302 DIFF_COMMIT = 6,
303 DIFF_WHITESPACE = 7,
304};
305
306
307
308
309
310
311
312/*
313 * from git:revision.h
314 */
315
316struct rev_info;
317struct log_info;
318
319typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
320
321struct rev_info {
322 /* Starting list */
323 struct commit_list *commits;
324 struct object_array pending;
325
326 /* Basic information */
327 const char *prefix;
328 void *prune_data;
329 prune_fn_t *prune_fn;
330
331 /* Traversal flags */
332 unsigned int dense:1,
333 no_merges:1,
334 no_walk:1,
335 remove_empty_trees:1,
336 simplify_history:1,
337 lifo:1,
338 topo_order:1,
339 tag_objects:1,
340 tree_objects:1,
341 blob_objects:1,
342 edge_hint:1,
343 limited:1,
344 unpacked:1, /* see also ignore_packed below */
345 boundary:1,
346 parents:1;
347
348 /* Diff flags */
349 unsigned int diff:1,
350 full_diff:1,
351 show_root_diff:1,
352 no_commit_id:1,
353 verbose_header:1,
354 ignore_merges:1,
355 combine_merges:1,
356 dense_combined_merges:1,
357 always_show_header:1;
358
359 /* Format info */
360 unsigned int shown_one:1,
361 abbrev_commit:1,
362 relative_date:1;
363
364 const char **ignore_packed; /* pretend objects in these are unpacked */
365 int num_ignore_packed;
366
367 unsigned int abbrev;
368 enum cmit_fmt commit_format;
369 struct log_info *loginfo;
370 int nr, total;
371 const char *mime_boundary;
372 const char *message_id;
373 const char *ref_message_id;
374 const char *add_signoff;
375 const char *extra_headers;
376
377 /* Filter by commit log message */
378 struct grep_opt *grep_filter;
379
380 /* special limits */
381 int max_count;
382 unsigned long max_age;
383 unsigned long min_age;
384
385 /* diff info for patches and for paths limiting */
386 struct diff_options diffopt;
387 struct diff_options pruning;
388
389 topo_sort_set_fn_t topo_setter;
390 topo_sort_get_fn_t topo_getter;
391};
392
393
394extern struct commit *get_revision(struct rev_info *revs);
395
396
397
398
399#endif /* GIT_H */