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Commit | Line | Data |
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f6aa7ecc JS |
1 | #include "cache.h" |
2 | #include "add-interactive.h" | |
3 | #include "strbuf.h" | |
4 | #include "run-command.h" | |
dbbcd44f | 5 | #include "strvec.h" |
f6aa7ecc | 6 | #include "pathspec.h" |
e3bd11b4 | 7 | #include "color.h" |
25ea47af | 8 | #include "diff.h" |
04f816b1 | 9 | #include "compat/terminal.h" |
08d383f2 | 10 | #include "prompt.h" |
25ea47af | 11 | |
0ecd9d27 | 12 | enum prompt_mode_type { |
2c8bd847 | 13 | PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_ADDITION, PROMPT_HUNK, |
d2a233cb | 14 | PROMPT_MODE_MAX, /* must be last */ |
0ecd9d27 JS |
15 | }; |
16 | ||
d2a233cb JS |
17 | struct patch_mode { |
18 | /* | |
19 | * The magic constant 4 is chosen such that all patch modes | |
20 | * provide enough space for three command-line arguments followed by a | |
21 | * trailing `NULL`. | |
22 | */ | |
23 | const char *diff_cmd[4], *apply_args[4], *apply_check_args[4]; | |
36bae1dc | 24 | unsigned is_reverse:1, index_only:1, apply_for_checkout:1; |
d2a233cb JS |
25 | const char *prompt_mode[PROMPT_MODE_MAX]; |
26 | const char *edit_hunk_hint, *help_patch_text; | |
27 | }; | |
28 | ||
29 | static struct patch_mode patch_mode_add = { | |
30 | .diff_cmd = { "diff-files", NULL }, | |
31 | .apply_args = { "--cached", NULL }, | |
32 | .apply_check_args = { "--cached", NULL }, | |
33 | .prompt_mode = { | |
34 | N_("Stage mode change [y,n,q,a,d%s,?]? "), | |
35 | N_("Stage deletion [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 36 | N_("Stage addition [y,n,q,a,d%s,?]? "), |
d2a233cb JS |
37 | N_("Stage this hunk [y,n,q,a,d%s,?]? ") |
38 | }, | |
39 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
40 | "will immediately be marked for staging."), | |
41 | .help_patch_text = | |
42 | N_("y - stage this hunk\n" | |
43 | "n - do not stage this hunk\n" | |
44 | "q - quit; do not stage this hunk or any of the remaining " | |
45 | "ones\n" | |
46 | "a - stage this hunk and all later hunks in the file\n" | |
47 | "d - do not stage this hunk or any of the later hunks in " | |
48 | "the file\n") | |
0ecd9d27 JS |
49 | }; |
50 | ||
36bae1dc JS |
51 | static struct patch_mode patch_mode_stash = { |
52 | .diff_cmd = { "diff-index", "HEAD", NULL }, | |
53 | .apply_args = { "--cached", NULL }, | |
54 | .apply_check_args = { "--cached", NULL }, | |
55 | .prompt_mode = { | |
56 | N_("Stash mode change [y,n,q,a,d%s,?]? "), | |
57 | N_("Stash deletion [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 58 | N_("Stash addition [y,n,q,a,d%s,?]? "), |
36bae1dc JS |
59 | N_("Stash this hunk [y,n,q,a,d%s,?]? "), |
60 | }, | |
61 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
62 | "will immediately be marked for stashing."), | |
63 | .help_patch_text = | |
64 | N_("y - stash this hunk\n" | |
65 | "n - do not stash this hunk\n" | |
66 | "q - quit; do not stash this hunk or any of the remaining " | |
67 | "ones\n" | |
68 | "a - stash this hunk and all later hunks in the file\n" | |
69 | "d - do not stash this hunk or any of the later hunks in " | |
70 | "the file\n"), | |
71 | }; | |
72 | ||
73 | static struct patch_mode patch_mode_reset_head = { | |
74 | .diff_cmd = { "diff-index", "--cached", NULL }, | |
75 | .apply_args = { "-R", "--cached", NULL }, | |
76 | .apply_check_args = { "-R", "--cached", NULL }, | |
77 | .is_reverse = 1, | |
78 | .index_only = 1, | |
79 | .prompt_mode = { | |
80 | N_("Unstage mode change [y,n,q,a,d%s,?]? "), | |
81 | N_("Unstage deletion [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 82 | N_("Unstage addition [y,n,q,a,d%s,?]? "), |
36bae1dc JS |
83 | N_("Unstage this hunk [y,n,q,a,d%s,?]? "), |
84 | }, | |
85 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
86 | "will immediately be marked for unstaging."), | |
87 | .help_patch_text = | |
88 | N_("y - unstage this hunk\n" | |
89 | "n - do not unstage this hunk\n" | |
90 | "q - quit; do not unstage this hunk or any of the remaining " | |
91 | "ones\n" | |
92 | "a - unstage this hunk and all later hunks in the file\n" | |
93 | "d - do not unstage this hunk or any of the later hunks in " | |
94 | "the file\n"), | |
95 | }; | |
96 | ||
97 | static struct patch_mode patch_mode_reset_nothead = { | |
98 | .diff_cmd = { "diff-index", "-R", "--cached", NULL }, | |
99 | .apply_args = { "--cached", NULL }, | |
100 | .apply_check_args = { "--cached", NULL }, | |
101 | .index_only = 1, | |
102 | .prompt_mode = { | |
103 | N_("Apply mode change to index [y,n,q,a,d%s,?]? "), | |
104 | N_("Apply deletion to index [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 105 | N_("Apply addition to index [y,n,q,a,d%s,?]? "), |
36bae1dc JS |
106 | N_("Apply this hunk to index [y,n,q,a,d%s,?]? "), |
107 | }, | |
108 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
109 | "will immediately be marked for applying."), | |
110 | .help_patch_text = | |
111 | N_("y - apply this hunk to index\n" | |
112 | "n - do not apply this hunk to index\n" | |
113 | "q - quit; do not apply this hunk or any of the remaining " | |
114 | "ones\n" | |
115 | "a - apply this hunk and all later hunks in the file\n" | |
116 | "d - do not apply this hunk or any of the later hunks in " | |
117 | "the file\n"), | |
118 | }; | |
119 | ||
52628f94 JS |
120 | static struct patch_mode patch_mode_checkout_index = { |
121 | .diff_cmd = { "diff-files", NULL }, | |
122 | .apply_args = { "-R", NULL }, | |
123 | .apply_check_args = { "-R", NULL }, | |
124 | .is_reverse = 1, | |
125 | .prompt_mode = { | |
126 | N_("Discard mode change from worktree [y,n,q,a,d%s,?]? "), | |
127 | N_("Discard deletion from worktree [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 128 | N_("Discard addition from worktree [y,n,q,a,d%s,?]? "), |
52628f94 JS |
129 | N_("Discard this hunk from worktree [y,n,q,a,d%s,?]? "), |
130 | }, | |
131 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
132 | "will immediately be marked for discarding."), | |
133 | .help_patch_text = | |
134 | N_("y - discard this hunk from worktree\n" | |
135 | "n - do not discard this hunk from worktree\n" | |
136 | "q - quit; do not discard this hunk or any of the remaining " | |
137 | "ones\n" | |
138 | "a - discard this hunk and all later hunks in the file\n" | |
139 | "d - do not discard this hunk or any of the later hunks in " | |
140 | "the file\n"), | |
141 | }; | |
142 | ||
143 | static struct patch_mode patch_mode_checkout_head = { | |
144 | .diff_cmd = { "diff-index", NULL }, | |
145 | .apply_for_checkout = 1, | |
146 | .apply_check_args = { "-R", NULL }, | |
147 | .is_reverse = 1, | |
148 | .prompt_mode = { | |
149 | N_("Discard mode change from index and worktree [y,n,q,a,d%s,?]? "), | |
150 | N_("Discard deletion from index and worktree [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 151 | N_("Discard addition from index and worktree [y,n,q,a,d%s,?]? "), |
52628f94 JS |
152 | N_("Discard this hunk from index and worktree [y,n,q,a,d%s,?]? "), |
153 | }, | |
154 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
155 | "will immediately be marked for discarding."), | |
156 | .help_patch_text = | |
157 | N_("y - discard this hunk from index and worktree\n" | |
158 | "n - do not discard this hunk from index and worktree\n" | |
159 | "q - quit; do not discard this hunk or any of the remaining " | |
160 | "ones\n" | |
161 | "a - discard this hunk and all later hunks in the file\n" | |
162 | "d - do not discard this hunk or any of the later hunks in " | |
163 | "the file\n"), | |
164 | }; | |
165 | ||
166 | static struct patch_mode patch_mode_checkout_nothead = { | |
167 | .diff_cmd = { "diff-index", "-R", NULL }, | |
168 | .apply_for_checkout = 1, | |
169 | .apply_check_args = { NULL }, | |
170 | .prompt_mode = { | |
171 | N_("Apply mode change to index and worktree [y,n,q,a,d%s,?]? "), | |
172 | N_("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 173 | N_("Apply addition to index and worktree [y,n,q,a,d%s,?]? "), |
52628f94 JS |
174 | N_("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "), |
175 | }, | |
176 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
177 | "will immediately be marked for applying."), | |
178 | .help_patch_text = | |
179 | N_("y - apply this hunk to index and worktree\n" | |
180 | "n - do not apply this hunk to index and worktree\n" | |
181 | "q - quit; do not apply this hunk or any of the remaining " | |
182 | "ones\n" | |
183 | "a - apply this hunk and all later hunks in the file\n" | |
184 | "d - do not apply this hunk or any of the later hunks in " | |
185 | "the file\n"), | |
186 | }; | |
187 | ||
cee6cb73 JS |
188 | static struct patch_mode patch_mode_worktree_head = { |
189 | .diff_cmd = { "diff-index", NULL }, | |
190 | .apply_args = { "-R", NULL }, | |
191 | .apply_check_args = { "-R", NULL }, | |
192 | .is_reverse = 1, | |
193 | .prompt_mode = { | |
194 | N_("Discard mode change from index and worktree [y,n,q,a,d%s,?]? "), | |
195 | N_("Discard deletion from index and worktree [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 196 | N_("Discard addition from index and worktree [y,n,q,a,d%s,?]? "), |
cee6cb73 JS |
197 | N_("Discard this hunk from index and worktree [y,n,q,a,d%s,?]? "), |
198 | }, | |
199 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
200 | "will immediately be marked for discarding."), | |
201 | .help_patch_text = | |
202 | N_("y - discard this hunk from worktree\n" | |
203 | "n - do not discard this hunk from worktree\n" | |
204 | "q - quit; do not discard this hunk or any of the remaining " | |
205 | "ones\n" | |
206 | "a - discard this hunk and all later hunks in the file\n" | |
207 | "d - do not discard this hunk or any of the later hunks in " | |
208 | "the file\n"), | |
209 | }; | |
210 | ||
211 | static struct patch_mode patch_mode_worktree_nothead = { | |
212 | .diff_cmd = { "diff-index", "-R", NULL }, | |
213 | .apply_args = { NULL }, | |
214 | .apply_check_args = { NULL }, | |
215 | .prompt_mode = { | |
216 | N_("Apply mode change to index and worktree [y,n,q,a,d%s,?]? "), | |
217 | N_("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "), | |
2c8bd847 | 218 | N_("Apply addition to index and worktree [y,n,q,a,d%s,?]? "), |
cee6cb73 JS |
219 | N_("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "), |
220 | }, | |
221 | .edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk " | |
222 | "will immediately be marked for applying."), | |
223 | .help_patch_text = | |
224 | N_("y - apply this hunk to worktree\n" | |
225 | "n - do not apply this hunk to worktree\n" | |
226 | "q - quit; do not apply this hunk or any of the remaining " | |
227 | "ones\n" | |
228 | "a - apply this hunk and all later hunks in the file\n" | |
229 | "d - do not apply this hunk or any of the later hunks in " | |
230 | "the file\n"), | |
231 | }; | |
232 | ||
25ea47af JS |
233 | struct hunk_header { |
234 | unsigned long old_offset, old_count, new_offset, new_count; | |
235 | /* | |
236 | * Start/end offsets to the extra text after the second `@@` in the | |
237 | * hunk header, e.g. the function signature. This is expected to | |
238 | * include the newline. | |
239 | */ | |
240 | size_t extra_start, extra_end, colored_extra_start, colored_extra_end; | |
241 | }; | |
f6aa7ecc JS |
242 | |
243 | struct hunk { | |
510aeca1 | 244 | size_t start, end, colored_start, colored_end, splittable_into; |
bcdd297b | 245 | ssize_t delta; |
f6aa7ecc | 246 | enum { UNDECIDED_HUNK = 0, SKIP_HUNK, USE_HUNK } use; |
25ea47af | 247 | struct hunk_header header; |
f6aa7ecc JS |
248 | }; |
249 | ||
250 | struct add_p_state { | |
25ea47af | 251 | struct add_i_state s; |
f6aa7ecc JS |
252 | struct strbuf answer, buf; |
253 | ||
254 | /* parsed diff */ | |
e3bd11b4 | 255 | struct strbuf plain, colored; |
80399aec JS |
256 | struct file_diff { |
257 | struct hunk head; | |
258 | struct hunk *hunk; | |
259 | size_t hunk_nr, hunk_alloc; | |
2c8bd847 | 260 | unsigned deleted:1, added:1, mode_change:1,binary:1; |
80399aec JS |
261 | } *file_diff; |
262 | size_t file_diff_nr; | |
d2a233cb JS |
263 | |
264 | /* patch mode */ | |
265 | struct patch_mode *mode; | |
266 | const char *revision; | |
f6aa7ecc JS |
267 | }; |
268 | ||
7584dd3c JS |
269 | static void err(struct add_p_state *s, const char *fmt, ...) |
270 | { | |
271 | va_list args; | |
272 | ||
273 | va_start(args, fmt); | |
274 | fputs(s->s.error_color, stderr); | |
275 | vfprintf(stderr, fmt, args); | |
276 | fputs(s->s.reset_color, stderr); | |
277 | fputc('\n', stderr); | |
278 | va_end(args); | |
279 | } | |
280 | ||
f6aa7ecc JS |
281 | static void setup_child_process(struct add_p_state *s, |
282 | struct child_process *cp, ...) | |
283 | { | |
284 | va_list ap; | |
285 | const char *arg; | |
286 | ||
287 | va_start(ap, cp); | |
288 | while ((arg = va_arg(ap, const char *))) | |
ef8d7ac4 | 289 | strvec_push(&cp->args, arg); |
f6aa7ecc JS |
290 | va_end(ap); |
291 | ||
292 | cp->git_cmd = 1; | |
ef8d7ac4 | 293 | strvec_pushf(&cp->env_array, |
f6d8942b | 294 | INDEX_ENVIRONMENT "=%s", s->s.r->index_file); |
25ea47af JS |
295 | } |
296 | ||
297 | static int parse_range(const char **p, | |
298 | unsigned long *offset, unsigned long *count) | |
299 | { | |
300 | char *pend; | |
301 | ||
302 | *offset = strtoul(*p, &pend, 10); | |
303 | if (pend == *p) | |
304 | return -1; | |
305 | if (*pend != ',') { | |
306 | *count = 1; | |
307 | *p = pend; | |
308 | return 0; | |
309 | } | |
310 | *count = strtoul(pend + 1, (char **)p, 10); | |
311 | return *p == pend + 1 ? -1 : 0; | |
312 | } | |
313 | ||
314 | static int parse_hunk_header(struct add_p_state *s, struct hunk *hunk) | |
315 | { | |
316 | struct hunk_header *header = &hunk->header; | |
317 | const char *line = s->plain.buf + hunk->start, *p = line; | |
318 | char *eol = memchr(p, '\n', s->plain.len - hunk->start); | |
319 | ||
320 | if (!eol) | |
321 | eol = s->plain.buf + s->plain.len; | |
322 | ||
323 | if (!skip_prefix(p, "@@ -", &p) || | |
324 | parse_range(&p, &header->old_offset, &header->old_count) < 0 || | |
325 | !skip_prefix(p, " +", &p) || | |
326 | parse_range(&p, &header->new_offset, &header->new_count) < 0 || | |
327 | !skip_prefix(p, " @@", &p)) | |
328 | return error(_("could not parse hunk header '%.*s'"), | |
329 | (int)(eol - line), line); | |
330 | ||
331 | hunk->start = eol - s->plain.buf + (*eol == '\n'); | |
332 | header->extra_start = p - s->plain.buf; | |
333 | header->extra_end = hunk->start; | |
334 | ||
335 | if (!s->colored.len) { | |
336 | header->colored_extra_start = header->colored_extra_end = 0; | |
337 | return 0; | |
338 | } | |
339 | ||
340 | /* Now find the extra text in the colored diff */ | |
341 | line = s->colored.buf + hunk->colored_start; | |
342 | eol = memchr(line, '\n', s->colored.len - hunk->colored_start); | |
343 | if (!eol) | |
344 | eol = s->colored.buf + s->colored.len; | |
345 | p = memmem(line, eol - line, "@@ -", 4); | |
346 | if (!p) | |
347 | return error(_("could not parse colored hunk header '%.*s'"), | |
348 | (int)(eol - line), line); | |
349 | p = memmem(p + 4, eol - p - 4, " @@", 3); | |
350 | if (!p) | |
351 | return error(_("could not parse colored hunk header '%.*s'"), | |
352 | (int)(eol - line), line); | |
353 | hunk->colored_start = eol - s->colored.buf + (*eol == '\n'); | |
354 | header->colored_extra_start = p + 3 - s->colored.buf; | |
355 | header->colored_extra_end = hunk->colored_start; | |
356 | ||
357 | return 0; | |
f6aa7ecc JS |
358 | } |
359 | ||
5906d5de JS |
360 | static int is_octal(const char *p, size_t len) |
361 | { | |
362 | if (!len) | |
363 | return 0; | |
364 | ||
365 | while (len--) | |
366 | if (*p < '0' || *(p++) > '7') | |
367 | return 0; | |
368 | return 1; | |
369 | } | |
370 | ||
f6aa7ecc JS |
371 | static int parse_diff(struct add_p_state *s, const struct pathspec *ps) |
372 | { | |
ef8d7ac4 | 373 | struct strvec args = STRVEC_INIT; |
08b1ea4c | 374 | const char *diff_algorithm = s->s.interactive_diff_algorithm; |
e3bd11b4 | 375 | struct strbuf *plain = &s->plain, *colored = NULL; |
f6aa7ecc | 376 | struct child_process cp = CHILD_PROCESS_INIT; |
510aeca1 | 377 | char *p, *pend, *colored_p = NULL, *colored_pend = NULL, marker = '\0'; |
80399aec JS |
378 | size_t file_diff_alloc = 0, i, color_arg_index; |
379 | struct file_diff *file_diff = NULL; | |
f6aa7ecc JS |
380 | struct hunk *hunk = NULL; |
381 | int res; | |
382 | ||
ef8d7ac4 | 383 | strvec_pushv(&args, s->mode->diff_cmd); |
08b1ea4c | 384 | if (diff_algorithm) |
ef8d7ac4 | 385 | strvec_pushf(&args, "--diff-algorithm=%s", diff_algorithm); |
d2a233cb JS |
386 | if (s->revision) { |
387 | struct object_id oid; | |
ef8d7ac4 | 388 | strvec_push(&args, |
f6d8942b JK |
389 | /* could be on an unborn branch */ |
390 | !strcmp("HEAD", s->revision) && | |
391 | get_oid("HEAD", &oid) ? | |
392 | empty_tree_oid_hex() : s->revision); | |
d2a233cb | 393 | } |
d70a9eb6 | 394 | color_arg_index = args.nr; |
f6aa7ecc | 395 | /* Use `--no-color` explicitly, just in case `diff.color = always`. */ |
ef8d7ac4 | 396 | strvec_pushl(&args, "--no-color", "-p", "--", NULL); |
f6aa7ecc | 397 | for (i = 0; i < ps->nr; i++) |
ef8d7ac4 | 398 | strvec_push(&args, ps->items[i].original); |
f6aa7ecc | 399 | |
e3bd11b4 | 400 | setup_child_process(s, &cp, NULL); |
d70a9eb6 | 401 | cp.argv = args.v; |
f6aa7ecc | 402 | res = capture_command(&cp, plain, 0); |
e3bd11b4 | 403 | if (res) { |
ef8d7ac4 | 404 | strvec_clear(&args); |
f6aa7ecc | 405 | return error(_("could not parse diff")); |
e3bd11b4 JS |
406 | } |
407 | if (!plain->len) { | |
ef8d7ac4 | 408 | strvec_clear(&args); |
f6aa7ecc | 409 | return 0; |
e3bd11b4 | 410 | } |
f6aa7ecc JS |
411 | strbuf_complete_line(plain); |
412 | ||
e3bd11b4 JS |
413 | if (want_color_fd(1, -1)) { |
414 | struct child_process colored_cp = CHILD_PROCESS_INIT; | |
180f48df | 415 | const char *diff_filter = s->s.interactive_diff_filter; |
e3bd11b4 JS |
416 | |
417 | setup_child_process(s, &colored_cp, NULL); | |
d70a9eb6 JK |
418 | xsnprintf((char *)args.v[color_arg_index], 8, "--color"); |
419 | colored_cp.argv = args.v; | |
e3bd11b4 JS |
420 | colored = &s->colored; |
421 | res = capture_command(&colored_cp, colored, 0); | |
ef8d7ac4 | 422 | strvec_clear(&args); |
e3bd11b4 JS |
423 | if (res) |
424 | return error(_("could not parse colored diff")); | |
180f48df JS |
425 | |
426 | if (diff_filter) { | |
427 | struct child_process filter_cp = CHILD_PROCESS_INIT; | |
428 | ||
429 | setup_child_process(s, &filter_cp, | |
430 | diff_filter, NULL); | |
431 | filter_cp.git_cmd = 0; | |
432 | filter_cp.use_shell = 1; | |
433 | strbuf_reset(&s->buf); | |
434 | if (pipe_command(&filter_cp, | |
435 | colored->buf, colored->len, | |
436 | &s->buf, colored->len, | |
437 | NULL, 0) < 0) | |
438 | return error(_("failed to run '%s'"), | |
439 | diff_filter); | |
440 | strbuf_swap(colored, &s->buf); | |
441 | } | |
442 | ||
e3bd11b4 JS |
443 | strbuf_complete_line(colored); |
444 | colored_p = colored->buf; | |
445 | colored_pend = colored_p + colored->len; | |
446 | } | |
ef8d7ac4 | 447 | strvec_clear(&args); |
e3bd11b4 | 448 | |
80399aec | 449 | /* parse files and hunks */ |
f6aa7ecc JS |
450 | p = plain->buf; |
451 | pend = p + plain->len; | |
452 | while (p != pend) { | |
453 | char *eol = memchr(p, '\n', pend - p); | |
2c8bd847 | 454 | const char *deleted = NULL, *added = NULL, *mode_change = NULL; |
47dc4fd5 | 455 | |
f6aa7ecc JS |
456 | if (!eol) |
457 | eol = pend; | |
458 | ||
459 | if (starts_with(p, "diff ")) { | |
2ebe436c | 460 | ALLOC_GROW_BY(s->file_diff, s->file_diff_nr, 1, |
80399aec JS |
461 | file_diff_alloc); |
462 | file_diff = s->file_diff + s->file_diff_nr - 1; | |
80399aec JS |
463 | hunk = &file_diff->head; |
464 | hunk->start = p - plain->buf; | |
465 | if (colored_p) | |
466 | hunk->colored_start = colored_p - colored->buf; | |
510aeca1 | 467 | marker = '\0'; |
f6aa7ecc JS |
468 | } else if (p == plain->buf) |
469 | BUG("diff starts with unexpected line:\n" | |
470 | "%.*s\n", (int)(eol - p), p); | |
2c8bd847 | 471 | else if (file_diff->deleted || file_diff->added) |
47dc4fd5 JS |
472 | ; /* keep the rest of the file in a single "hunk" */ |
473 | else if (starts_with(p, "@@ ") || | |
474 | (hunk == &file_diff->head && | |
2c8bd847 JS |
475 | (skip_prefix(p, "deleted file", &deleted) || |
476 | skip_prefix(p, "new file", &added)))) { | |
510aeca1 JS |
477 | if (marker == '-' || marker == '+') |
478 | /* | |
479 | * Should not happen; previous hunk did not end | |
480 | * in a context line? Handle it anyway. | |
481 | */ | |
482 | hunk->splittable_into++; | |
483 | ||
2ebe436c | 484 | ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1, |
80399aec JS |
485 | file_diff->hunk_alloc); |
486 | hunk = file_diff->hunk + file_diff->hunk_nr - 1; | |
f6aa7ecc JS |
487 | |
488 | hunk->start = p - plain->buf; | |
e3bd11b4 JS |
489 | if (colored) |
490 | hunk->colored_start = colored_p - colored->buf; | |
25ea47af | 491 | |
47dc4fd5 JS |
492 | if (deleted) |
493 | file_diff->deleted = 1; | |
2c8bd847 JS |
494 | else if (added) |
495 | file_diff->added = 1; | |
47dc4fd5 | 496 | else if (parse_hunk_header(s, hunk) < 0) |
25ea47af | 497 | return -1; |
510aeca1 JS |
498 | |
499 | /* | |
500 | * Start counting into how many hunks this one can be | |
501 | * split | |
502 | */ | |
503 | marker = *p; | |
5906d5de JS |
504 | } else if (hunk == &file_diff->head && |
505 | skip_prefix(p, "old mode ", &mode_change) && | |
506 | is_octal(mode_change, eol - mode_change)) { | |
507 | if (file_diff->mode_change) | |
508 | BUG("double mode change?\n\n%.*s", | |
509 | (int)(eol - plain->buf), plain->buf); | |
2ebe436c | 510 | if (file_diff->hunk_nr) |
5906d5de JS |
511 | BUG("mode change in the middle?\n\n%.*s", |
512 | (int)(eol - plain->buf), plain->buf); | |
513 | ||
514 | /* | |
515 | * Do *not* change `hunk`: the mode change pseudo-hunk | |
516 | * is _part of_ the header "hunk". | |
517 | */ | |
518 | file_diff->mode_change = 1; | |
2ebe436c | 519 | ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1, |
5906d5de | 520 | file_diff->hunk_alloc); |
5906d5de JS |
521 | file_diff->hunk->start = p - plain->buf; |
522 | if (colored_p) | |
523 | file_diff->hunk->colored_start = | |
524 | colored_p - colored->buf; | |
525 | } else if (hunk == &file_diff->head && | |
526 | skip_prefix(p, "new mode ", &mode_change) && | |
527 | is_octal(mode_change, eol - mode_change)) { | |
528 | ||
529 | /* | |
530 | * Extend the "mode change" pseudo-hunk to include also | |
531 | * the "new mode" line. | |
532 | */ | |
533 | if (!file_diff->mode_change) | |
534 | BUG("'new mode' without 'old mode'?\n\n%.*s", | |
535 | (int)(eol - plain->buf), plain->buf); | |
536 | if (file_diff->hunk_nr != 1) | |
537 | BUG("mode change in the middle?\n\n%.*s", | |
538 | (int)(eol - plain->buf), plain->buf); | |
539 | if (p - plain->buf != file_diff->hunk->end) | |
540 | BUG("'new mode' does not immediately follow " | |
541 | "'old mode'?\n\n%.*s", | |
542 | (int)(eol - plain->buf), plain->buf); | |
2e408319 JS |
543 | } else if (hunk == &file_diff->head && |
544 | starts_with(p, "Binary files ")) | |
545 | file_diff->binary = 1; | |
f6aa7ecc | 546 | |
2c8bd847 JS |
547 | if (!!file_diff->deleted + !!file_diff->added + |
548 | !!file_diff->mode_change > 1) | |
549 | BUG("diff can only contain delete *or* add *or* a " | |
550 | "mode change?!?\n%.*s", | |
5906d5de JS |
551 | (int)(eol - (plain->buf + file_diff->head.start)), |
552 | plain->buf + file_diff->head.start); | |
553 | ||
510aeca1 JS |
554 | if ((marker == '-' || marker == '+') && *p == ' ') |
555 | hunk->splittable_into++; | |
556 | if (marker && *p != '\\') | |
557 | marker = *p; | |
558 | ||
f6aa7ecc JS |
559 | p = eol == pend ? pend : eol + 1; |
560 | hunk->end = p - plain->buf; | |
e3bd11b4 JS |
561 | |
562 | if (colored) { | |
563 | char *colored_eol = memchr(colored_p, '\n', | |
564 | colored_pend - colored_p); | |
565 | if (colored_eol) | |
566 | colored_p = colored_eol + 1; | |
180f48df JS |
567 | else if (p != pend) |
568 | /* colored shorter than non-colored? */ | |
569 | goto mismatched_output; | |
e3bd11b4 JS |
570 | else |
571 | colored_p = colored_pend; | |
572 | ||
573 | hunk->colored_end = colored_p - colored->buf; | |
574 | } | |
5906d5de JS |
575 | |
576 | if (mode_change) { | |
577 | if (file_diff->hunk_nr != 1) | |
578 | BUG("mode change in hunk #%d???", | |
579 | (int)file_diff->hunk_nr); | |
580 | /* Adjust the end of the "mode change" pseudo-hunk */ | |
581 | file_diff->hunk->end = hunk->end; | |
582 | if (colored) | |
583 | file_diff->hunk->colored_end = hunk->colored_end; | |
584 | } | |
f6aa7ecc JS |
585 | } |
586 | ||
510aeca1 JS |
587 | if (marker == '-' || marker == '+') |
588 | /* | |
589 | * Last hunk ended in non-context line (i.e. it appended lines | |
590 | * to the file, so there are no trailing context lines). | |
591 | */ | |
592 | hunk->splittable_into++; | |
593 | ||
180f48df JS |
594 | /* non-colored shorter than colored? */ |
595 | if (colored_p != colored_pend) { | |
596 | mismatched_output: | |
597 | error(_("mismatched output from interactive.diffFilter")); | |
598 | advise(_("Your filter must maintain a one-to-one correspondence\n" | |
599 | "between its input and output lines.")); | |
600 | return -1; | |
601 | } | |
602 | ||
f6aa7ecc JS |
603 | return 0; |
604 | } | |
605 | ||
510aeca1 JS |
606 | static size_t find_next_line(struct strbuf *sb, size_t offset) |
607 | { | |
608 | char *eol; | |
609 | ||
610 | if (offset >= sb->len) | |
611 | BUG("looking for next line beyond buffer (%d >= %d)\n%s", | |
612 | (int)offset, (int)sb->len, sb->buf); | |
613 | ||
614 | eol = memchr(sb->buf + offset, '\n', sb->len - offset); | |
615 | if (!eol) | |
616 | return sb->len; | |
617 | return eol - sb->buf + 1; | |
618 | } | |
619 | ||
f6aa7ecc | 620 | static void render_hunk(struct add_p_state *s, struct hunk *hunk, |
25ea47af | 621 | ssize_t delta, int colored, struct strbuf *out) |
f6aa7ecc | 622 | { |
25ea47af JS |
623 | struct hunk_header *header = &hunk->header; |
624 | ||
625 | if (hunk->header.old_offset != 0 || hunk->header.new_offset != 0) { | |
626 | /* | |
627 | * Generate the hunk header dynamically, except for special | |
628 | * hunks (such as the diff header). | |
629 | */ | |
630 | const char *p; | |
631 | size_t len; | |
632 | unsigned long old_offset = header->old_offset; | |
633 | unsigned long new_offset = header->new_offset; | |
634 | ||
635 | if (!colored) { | |
636 | p = s->plain.buf + header->extra_start; | |
637 | len = header->extra_end - header->extra_start; | |
638 | } else { | |
639 | strbuf_addstr(out, s->s.fraginfo_color); | |
640 | p = s->colored.buf + header->colored_extra_start; | |
641 | len = header->colored_extra_end | |
642 | - header->colored_extra_start; | |
643 | } | |
644 | ||
d2a233cb JS |
645 | if (s->mode->is_reverse) |
646 | old_offset -= delta; | |
647 | else | |
648 | new_offset += delta; | |
25ea47af JS |
649 | |
650 | strbuf_addf(out, "@@ -%lu,%lu +%lu,%lu @@", | |
651 | old_offset, header->old_count, | |
652 | new_offset, header->new_count); | |
653 | if (len) | |
654 | strbuf_add(out, p, len); | |
655 | else if (colored) | |
656 | strbuf_addf(out, "%s\n", GIT_COLOR_RESET); | |
657 | else | |
658 | strbuf_addch(out, '\n'); | |
659 | } | |
660 | ||
e3bd11b4 JS |
661 | if (colored) |
662 | strbuf_add(out, s->colored.buf + hunk->colored_start, | |
663 | hunk->colored_end - hunk->colored_start); | |
664 | else | |
665 | strbuf_add(out, s->plain.buf + hunk->start, | |
666 | hunk->end - hunk->start); | |
f6aa7ecc JS |
667 | } |
668 | ||
5906d5de JS |
669 | static void render_diff_header(struct add_p_state *s, |
670 | struct file_diff *file_diff, int colored, | |
671 | struct strbuf *out) | |
672 | { | |
673 | /* | |
674 | * If there was a mode change, the first hunk is a pseudo hunk that | |
675 | * corresponds to the mode line in the header. If the user did not want | |
676 | * to stage that "hunk", we actually have to cut it out from the header. | |
677 | */ | |
678 | int skip_mode_change = | |
679 | file_diff->mode_change && file_diff->hunk->use != USE_HUNK; | |
680 | struct hunk *head = &file_diff->head, *first = file_diff->hunk; | |
681 | ||
682 | if (!skip_mode_change) { | |
683 | render_hunk(s, head, 0, colored, out); | |
684 | return; | |
685 | } | |
686 | ||
687 | if (colored) { | |
688 | const char *p = s->colored.buf; | |
689 | ||
690 | strbuf_add(out, p + head->colored_start, | |
691 | first->colored_start - head->colored_start); | |
692 | strbuf_add(out, p + first->colored_end, | |
693 | head->colored_end - first->colored_end); | |
694 | } else { | |
695 | const char *p = s->plain.buf; | |
696 | ||
697 | strbuf_add(out, p + head->start, first->start - head->start); | |
698 | strbuf_add(out, p + first->end, head->end - first->end); | |
699 | } | |
700 | } | |
701 | ||
11f2c0da JS |
702 | /* Coalesce hunks again that were split */ |
703 | static int merge_hunks(struct add_p_state *s, struct file_diff *file_diff, | |
bcdd297b | 704 | size_t *hunk_index, int use_all, struct hunk *merged) |
11f2c0da | 705 | { |
bcdd297b | 706 | size_t i = *hunk_index, delta; |
11f2c0da JS |
707 | struct hunk *hunk = file_diff->hunk + i; |
708 | /* `header` corresponds to the merged hunk */ | |
709 | struct hunk_header *header = &merged->header, *next; | |
710 | ||
bcdd297b | 711 | if (!use_all && hunk->use != USE_HUNK) |
11f2c0da JS |
712 | return 0; |
713 | ||
714 | *merged = *hunk; | |
715 | /* We simply skip the colored part (if any) when merging hunks */ | |
716 | merged->colored_start = merged->colored_end = 0; | |
717 | ||
718 | for (; i + 1 < file_diff->hunk_nr; i++) { | |
719 | hunk++; | |
720 | next = &hunk->header; | |
721 | ||
722 | /* | |
723 | * Stop merging hunks when: | |
724 | * | |
725 | * - the hunk is not selected for use, or | |
726 | * - the hunk does not overlap with the already-merged hunk(s) | |
727 | */ | |
bcdd297b JS |
728 | if ((!use_all && hunk->use != USE_HUNK) || |
729 | header->new_offset >= next->new_offset + merged->delta || | |
730 | header->new_offset + header->new_count | |
731 | < next->new_offset + merged->delta) | |
11f2c0da JS |
732 | break; |
733 | ||
bcdd297b JS |
734 | /* |
735 | * If the hunks were not edited, and overlap, we can simply | |
736 | * extend the line range. | |
737 | */ | |
738 | if (merged->start < hunk->start && merged->end > hunk->start) { | |
739 | merged->end = hunk->end; | |
740 | merged->colored_end = hunk->colored_end; | |
741 | delta = 0; | |
742 | } else { | |
743 | const char *plain = s->plain.buf; | |
744 | size_t overlapping_line_count = header->new_offset | |
745 | + header->new_count - merged->delta | |
746 | - next->new_offset; | |
747 | size_t overlap_end = hunk->start; | |
748 | size_t overlap_start = overlap_end; | |
749 | size_t overlap_next, len, j; | |
750 | ||
751 | /* | |
752 | * One of the hunks was edited: the modified hunk was | |
753 | * appended to the strbuf `s->plain`. | |
754 | * | |
755 | * Let's ensure that at least the last context line of | |
756 | * the first hunk overlaps with the corresponding line | |
757 | * of the second hunk, and then merge. | |
758 | */ | |
759 | for (j = 0; j < overlapping_line_count; j++) { | |
760 | overlap_next = find_next_line(&s->plain, | |
761 | overlap_end); | |
762 | ||
763 | if (overlap_next > hunk->end) | |
764 | BUG("failed to find %d context lines " | |
765 | "in:\n%.*s", | |
766 | (int)overlapping_line_count, | |
767 | (int)(hunk->end - hunk->start), | |
768 | plain + hunk->start); | |
769 | ||
770 | if (plain[overlap_end] != ' ') | |
771 | return error(_("expected context line " | |
772 | "#%d in\n%.*s"), | |
773 | (int)(j + 1), | |
774 | (int)(hunk->end | |
775 | - hunk->start), | |
776 | plain + hunk->start); | |
777 | ||
778 | overlap_start = overlap_end; | |
779 | overlap_end = overlap_next; | |
780 | } | |
781 | len = overlap_end - overlap_start; | |
782 | ||
783 | if (len > merged->end - merged->start || | |
784 | memcmp(plain + merged->end - len, | |
785 | plain + overlap_start, len)) | |
786 | return error(_("hunks do not overlap:\n%.*s\n" | |
787 | "\tdoes not end with:\n%.*s"), | |
788 | (int)(merged->end - merged->start), | |
789 | plain + merged->start, | |
790 | (int)len, plain + overlap_start); | |
791 | ||
792 | /* | |
793 | * Since the start-end ranges are not adjacent, we | |
794 | * cannot simply take the union of the ranges. To | |
795 | * address that, we temporarily append the union of the | |
796 | * lines to the `plain` strbuf. | |
797 | */ | |
798 | if (merged->end != s->plain.len) { | |
799 | size_t start = s->plain.len; | |
800 | ||
801 | strbuf_add(&s->plain, plain + merged->start, | |
802 | merged->end - merged->start); | |
803 | plain = s->plain.buf; | |
804 | merged->start = start; | |
805 | merged->end = s->plain.len; | |
806 | } | |
807 | ||
808 | strbuf_add(&s->plain, | |
809 | plain + overlap_end, | |
810 | hunk->end - overlap_end); | |
811 | merged->end = s->plain.len; | |
812 | merged->splittable_into += hunk->splittable_into; | |
813 | delta = merged->delta; | |
814 | merged->delta += hunk->delta; | |
815 | } | |
11f2c0da JS |
816 | |
817 | header->old_count = next->old_offset + next->old_count | |
818 | - header->old_offset; | |
bcdd297b JS |
819 | header->new_count = next->new_offset + delta |
820 | + next->new_count - header->new_offset; | |
11f2c0da JS |
821 | } |
822 | ||
823 | if (i == *hunk_index) | |
824 | return 0; | |
825 | ||
826 | *hunk_index = i; | |
827 | return 1; | |
828 | } | |
829 | ||
80399aec | 830 | static void reassemble_patch(struct add_p_state *s, |
bcdd297b JS |
831 | struct file_diff *file_diff, int use_all, |
832 | struct strbuf *out) | |
f6aa7ecc JS |
833 | { |
834 | struct hunk *hunk; | |
bcdd297b | 835 | size_t save_len = s->plain.len, i; |
25ea47af | 836 | ssize_t delta = 0; |
f6aa7ecc | 837 | |
5906d5de | 838 | render_diff_header(s, file_diff, 0, out); |
f6aa7ecc | 839 | |
5906d5de | 840 | for (i = file_diff->mode_change; i < file_diff->hunk_nr; i++) { |
11f2c0da JS |
841 | struct hunk merged = { 0 }; |
842 | ||
80399aec | 843 | hunk = file_diff->hunk + i; |
bcdd297b | 844 | if (!use_all && hunk->use != USE_HUNK) |
25ea47af JS |
845 | delta += hunk->header.old_count |
846 | - hunk->header.new_count; | |
11f2c0da JS |
847 | else { |
848 | /* merge overlapping hunks into a temporary hunk */ | |
bcdd297b | 849 | if (merge_hunks(s, file_diff, &i, use_all, &merged)) |
11f2c0da JS |
850 | hunk = &merged; |
851 | ||
25ea47af | 852 | render_hunk(s, hunk, delta, 0, out); |
bcdd297b JS |
853 | |
854 | /* | |
855 | * In case `merge_hunks()` used `plain` as a scratch | |
856 | * pad (this happens when an edited hunk had to be | |
857 | * coalesced with another hunk). | |
858 | */ | |
859 | strbuf_setlen(&s->plain, save_len); | |
860 | ||
861 | delta += hunk->delta; | |
11f2c0da | 862 | } |
f6aa7ecc JS |
863 | } |
864 | } | |
865 | ||
510aeca1 JS |
866 | static int split_hunk(struct add_p_state *s, struct file_diff *file_diff, |
867 | size_t hunk_index) | |
868 | { | |
869 | int colored = !!s->colored.len, first = 1; | |
870 | struct hunk *hunk = file_diff->hunk + hunk_index; | |
871 | size_t splittable_into; | |
872 | size_t end, colored_end, current, colored_current = 0, context_line_count; | |
873 | struct hunk_header remaining, *header; | |
874 | char marker, ch; | |
875 | ||
876 | if (hunk_index >= file_diff->hunk_nr) | |
877 | BUG("invalid hunk index: %d (must be >= 0 and < %d)", | |
878 | (int)hunk_index, (int)file_diff->hunk_nr); | |
879 | ||
880 | if (hunk->splittable_into < 2) | |
881 | return 0; | |
882 | splittable_into = hunk->splittable_into; | |
883 | ||
884 | end = hunk->end; | |
885 | colored_end = hunk->colored_end; | |
886 | ||
887 | remaining = hunk->header; | |
888 | ||
889 | file_diff->hunk_nr += splittable_into - 1; | |
890 | ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr, file_diff->hunk_alloc); | |
891 | if (hunk_index + splittable_into < file_diff->hunk_nr) | |
892 | memmove(file_diff->hunk + hunk_index + splittable_into, | |
893 | file_diff->hunk + hunk_index + 1, | |
894 | (file_diff->hunk_nr - hunk_index - splittable_into) | |
895 | * sizeof(*hunk)); | |
896 | hunk = file_diff->hunk + hunk_index; | |
897 | hunk->splittable_into = 1; | |
898 | memset(hunk + 1, 0, (splittable_into - 1) * sizeof(*hunk)); | |
899 | ||
900 | header = &hunk->header; | |
901 | header->old_count = header->new_count = 0; | |
902 | ||
903 | current = hunk->start; | |
904 | if (colored) | |
905 | colored_current = hunk->colored_start; | |
906 | marker = '\0'; | |
907 | context_line_count = 0; | |
908 | ||
909 | while (splittable_into > 1) { | |
910 | ch = s->plain.buf[current]; | |
911 | ||
912 | if (!ch) | |
913 | BUG("buffer overrun while splitting hunks"); | |
914 | ||
915 | /* | |
916 | * Is this the first context line after a chain of +/- lines? | |
917 | * Then record the start of the next split hunk. | |
918 | */ | |
919 | if ((marker == '-' || marker == '+') && ch == ' ') { | |
920 | first = 0; | |
921 | hunk[1].start = current; | |
922 | if (colored) | |
923 | hunk[1].colored_start = colored_current; | |
924 | context_line_count = 0; | |
925 | } | |
926 | ||
927 | /* | |
928 | * Was the previous line a +/- one? Alternatively, is this the | |
929 | * first line (and not a +/- one)? | |
930 | * | |
931 | * Then just increment the appropriate counter and continue | |
932 | * with the next line. | |
933 | */ | |
934 | if (marker != ' ' || (ch != '-' && ch != '+')) { | |
935 | next_hunk_line: | |
936 | /* Comment lines are attached to the previous line */ | |
937 | if (ch == '\\') | |
938 | ch = marker ? marker : ' '; | |
939 | ||
940 | /* current hunk not done yet */ | |
941 | if (ch == ' ') | |
942 | context_line_count++; | |
943 | else if (ch == '-') | |
944 | header->old_count++; | |
945 | else if (ch == '+') | |
946 | header->new_count++; | |
947 | else | |
948 | BUG("unhandled diff marker: '%c'", ch); | |
949 | marker = ch; | |
950 | current = find_next_line(&s->plain, current); | |
951 | if (colored) | |
952 | colored_current = | |
953 | find_next_line(&s->colored, | |
954 | colored_current); | |
955 | continue; | |
956 | } | |
957 | ||
958 | /* | |
959 | * We got us the start of a new hunk! | |
960 | * | |
961 | * This is a context line, so it is shared with the previous | |
962 | * hunk, if any. | |
963 | */ | |
964 | ||
965 | if (first) { | |
966 | if (header->old_count || header->new_count) | |
967 | BUG("counts are off: %d/%d", | |
968 | (int)header->old_count, | |
969 | (int)header->new_count); | |
970 | ||
971 | header->old_count = context_line_count; | |
972 | header->new_count = context_line_count; | |
973 | context_line_count = 0; | |
974 | first = 0; | |
975 | goto next_hunk_line; | |
976 | } | |
977 | ||
978 | remaining.old_offset += header->old_count; | |
979 | remaining.old_count -= header->old_count; | |
980 | remaining.new_offset += header->new_count; | |
981 | remaining.new_count -= header->new_count; | |
982 | ||
983 | /* initialize next hunk header's offsets */ | |
984 | hunk[1].header.old_offset = | |
985 | header->old_offset + header->old_count; | |
986 | hunk[1].header.new_offset = | |
987 | header->new_offset + header->new_count; | |
988 | ||
989 | /* add one split hunk */ | |
990 | header->old_count += context_line_count; | |
991 | header->new_count += context_line_count; | |
992 | ||
993 | hunk->end = current; | |
994 | if (colored) | |
995 | hunk->colored_end = colored_current; | |
996 | ||
997 | hunk++; | |
998 | hunk->splittable_into = 1; | |
999 | hunk->use = hunk[-1].use; | |
1000 | header = &hunk->header; | |
1001 | ||
1002 | header->old_count = header->new_count = context_line_count; | |
1003 | context_line_count = 0; | |
1004 | ||
1005 | splittable_into--; | |
1006 | marker = ch; | |
1007 | } | |
1008 | ||
1009 | /* last hunk simply gets the rest */ | |
1010 | if (header->old_offset != remaining.old_offset) | |
1011 | BUG("miscounted old_offset: %lu != %lu", | |
1012 | header->old_offset, remaining.old_offset); | |
1013 | if (header->new_offset != remaining.new_offset) | |
1014 | BUG("miscounted new_offset: %lu != %lu", | |
1015 | header->new_offset, remaining.new_offset); | |
1016 | header->old_count = remaining.old_count; | |
1017 | header->new_count = remaining.new_count; | |
1018 | hunk->end = end; | |
1019 | if (colored) | |
1020 | hunk->colored_end = colored_end; | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
bcdd297b JS |
1025 | static void recolor_hunk(struct add_p_state *s, struct hunk *hunk) |
1026 | { | |
1027 | const char *plain = s->plain.buf; | |
1028 | size_t current, eol, next; | |
1029 | ||
1030 | if (!s->colored.len) | |
1031 | return; | |
1032 | ||
1033 | hunk->colored_start = s->colored.len; | |
1034 | for (current = hunk->start; current < hunk->end; ) { | |
1035 | for (eol = current; eol < hunk->end; eol++) | |
1036 | if (plain[eol] == '\n') | |
1037 | break; | |
1038 | next = eol + (eol < hunk->end); | |
1039 | if (eol > current && plain[eol - 1] == '\r') | |
1040 | eol--; | |
1041 | ||
1042 | strbuf_addstr(&s->colored, | |
1043 | plain[current] == '-' ? | |
1044 | s->s.file_old_color : | |
1045 | plain[current] == '+' ? | |
1046 | s->s.file_new_color : | |
1047 | s->s.context_color); | |
1048 | strbuf_add(&s->colored, plain + current, eol - current); | |
1049 | strbuf_addstr(&s->colored, GIT_COLOR_RESET); | |
1050 | if (next > eol) | |
1051 | strbuf_add(&s->colored, plain + eol, next - eol); | |
1052 | current = next; | |
1053 | } | |
1054 | hunk->colored_end = s->colored.len; | |
1055 | } | |
1056 | ||
1057 | static int edit_hunk_manually(struct add_p_state *s, struct hunk *hunk) | |
1058 | { | |
1059 | size_t i; | |
1060 | ||
1061 | strbuf_reset(&s->buf); | |
1062 | strbuf_commented_addf(&s->buf, _("Manual hunk edit mode -- see bottom for " | |
1063 | "a quick guide.\n")); | |
1064 | render_hunk(s, hunk, 0, 0, &s->buf); | |
1065 | strbuf_commented_addf(&s->buf, | |
1066 | _("---\n" | |
1067 | "To remove '%c' lines, make them ' ' lines " | |
1068 | "(context).\n" | |
1069 | "To remove '%c' lines, delete them.\n" | |
1070 | "Lines starting with %c will be removed.\n"), | |
d2a233cb JS |
1071 | s->mode->is_reverse ? '+' : '-', |
1072 | s->mode->is_reverse ? '-' : '+', | |
1073 | comment_line_char); | |
1074 | strbuf_commented_addf(&s->buf, "%s", _(s->mode->edit_hunk_hint)); | |
bcdd297b JS |
1075 | /* |
1076 | * TRANSLATORS: 'it' refers to the patch mentioned in the previous | |
1077 | * messages. | |
1078 | */ | |
1079 | strbuf_commented_addf(&s->buf, | |
1080 | _("If it does not apply cleanly, you will be " | |
1081 | "given an opportunity to\n" | |
1082 | "edit again. If all lines of the hunk are " | |
1083 | "removed, then the edit is\n" | |
1084 | "aborted and the hunk is left unchanged.\n")); | |
1085 | ||
1086 | if (strbuf_edit_interactively(&s->buf, "addp-hunk-edit.diff", NULL) < 0) | |
1087 | return -1; | |
1088 | ||
1089 | /* strip out commented lines */ | |
1090 | hunk->start = s->plain.len; | |
1091 | for (i = 0; i < s->buf.len; ) { | |
1092 | size_t next = find_next_line(&s->buf, i); | |
1093 | ||
1094 | if (s->buf.buf[i] != comment_line_char) | |
1095 | strbuf_add(&s->plain, s->buf.buf + i, next - i); | |
1096 | i = next; | |
1097 | } | |
1098 | ||
1099 | hunk->end = s->plain.len; | |
1100 | if (hunk->end == hunk->start) | |
1101 | /* The user aborted editing by deleting everything */ | |
1102 | return 0; | |
1103 | ||
1104 | recolor_hunk(s, hunk); | |
1105 | ||
1106 | /* | |
1107 | * If the hunk header is intact, parse it, otherwise simply use the | |
1108 | * hunk header prior to editing (which will adjust `hunk->start` to | |
1109 | * skip the hunk header). | |
1110 | */ | |
1111 | if (s->plain.buf[hunk->start] == '@' && | |
1112 | parse_hunk_header(s, hunk) < 0) | |
1113 | return error(_("could not parse hunk header")); | |
1114 | ||
1115 | return 1; | |
1116 | } | |
1117 | ||
1118 | static ssize_t recount_edited_hunk(struct add_p_state *s, struct hunk *hunk, | |
1119 | size_t orig_old_count, size_t orig_new_count) | |
1120 | { | |
1121 | struct hunk_header *header = &hunk->header; | |
1122 | size_t i; | |
1123 | ||
1124 | header->old_count = header->new_count = 0; | |
1125 | for (i = hunk->start; i < hunk->end; ) { | |
1126 | switch (s->plain.buf[i]) { | |
1127 | case '-': | |
1128 | header->old_count++; | |
1129 | break; | |
1130 | case '+': | |
1131 | header->new_count++; | |
1132 | break; | |
1133 | case ' ': case '\r': case '\n': | |
1134 | header->old_count++; | |
1135 | header->new_count++; | |
1136 | break; | |
1137 | } | |
1138 | ||
1139 | i = find_next_line(&s->plain, i); | |
1140 | } | |
1141 | ||
1142 | return orig_old_count - orig_new_count | |
1143 | - header->old_count + header->new_count; | |
1144 | } | |
1145 | ||
1146 | static int run_apply_check(struct add_p_state *s, | |
1147 | struct file_diff *file_diff) | |
1148 | { | |
1149 | struct child_process cp = CHILD_PROCESS_INIT; | |
1150 | ||
1151 | strbuf_reset(&s->buf); | |
1152 | reassemble_patch(s, file_diff, 1, &s->buf); | |
1153 | ||
1154 | setup_child_process(s, &cp, | |
d2a233cb | 1155 | "apply", "--check", NULL); |
ef8d7ac4 | 1156 | strvec_pushv(&cp.args, s->mode->apply_check_args); |
bcdd297b JS |
1157 | if (pipe_command(&cp, s->buf.buf, s->buf.len, NULL, 0, NULL, 0)) |
1158 | return error(_("'git apply --cached' failed")); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
04f816b1 JS |
1163 | static int read_single_character(struct add_p_state *s) |
1164 | { | |
1165 | if (s->s.use_single_key) { | |
1166 | int res = read_key_without_echo(&s->answer); | |
1167 | printf("%s\n", res == EOF ? "" : s->answer.buf); | |
1168 | return res; | |
1169 | } | |
1170 | ||
08d383f2 | 1171 | if (git_read_line_interactively(&s->answer) == EOF) |
04f816b1 | 1172 | return EOF; |
04f816b1 JS |
1173 | return 0; |
1174 | } | |
1175 | ||
bcdd297b JS |
1176 | static int prompt_yesno(struct add_p_state *s, const char *prompt) |
1177 | { | |
1178 | for (;;) { | |
1179 | color_fprintf(stdout, s->s.prompt_color, "%s", _(prompt)); | |
1180 | fflush(stdout); | |
04f816b1 | 1181 | if (read_single_character(s) == EOF) |
bcdd297b | 1182 | return -1; |
bcdd297b JS |
1183 | switch (tolower(s->answer.buf[0])) { |
1184 | case 'n': return 0; | |
1185 | case 'y': return 1; | |
1186 | } | |
1187 | } | |
1188 | } | |
1189 | ||
1190 | static int edit_hunk_loop(struct add_p_state *s, | |
1191 | struct file_diff *file_diff, struct hunk *hunk) | |
1192 | { | |
1193 | size_t plain_len = s->plain.len, colored_len = s->colored.len; | |
1194 | struct hunk backup; | |
1195 | ||
1196 | backup = *hunk; | |
1197 | ||
1198 | for (;;) { | |
1199 | int res = edit_hunk_manually(s, hunk); | |
1200 | if (res == 0) { | |
84544f2e | 1201 | /* abandoned */ |
bcdd297b JS |
1202 | *hunk = backup; |
1203 | return -1; | |
1204 | } | |
1205 | ||
1206 | if (res > 0) { | |
1207 | hunk->delta += | |
1208 | recount_edited_hunk(s, hunk, | |
1209 | backup.header.old_count, | |
1210 | backup.header.new_count); | |
1211 | if (!run_apply_check(s, file_diff)) | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | /* Drop edits (they were appended to s->plain) */ | |
1216 | strbuf_setlen(&s->plain, plain_len); | |
1217 | strbuf_setlen(&s->colored, colored_len); | |
1218 | *hunk = backup; | |
1219 | ||
1220 | /* | |
1221 | * TRANSLATORS: do not translate [y/n] | |
1222 | * The program will only accept that input at this point. | |
1223 | * Consider translating (saying "no" discards!) as | |
1224 | * (saying "n" for "no" discards!) if the translation | |
1225 | * of the word "no" does not start with n. | |
1226 | */ | |
1227 | res = prompt_yesno(s, _("Your edited hunk does not apply. " | |
1228 | "Edit again (saying \"no\" discards!) " | |
1229 | "[y/n]? ")); | |
1230 | if (res < 1) | |
1231 | return -1; | |
1232 | } | |
1233 | } | |
1234 | ||
52628f94 JS |
1235 | static int apply_for_checkout(struct add_p_state *s, struct strbuf *diff, |
1236 | int is_reverse) | |
1237 | { | |
1238 | const char *reverse = is_reverse ? "-R" : NULL; | |
1239 | struct child_process check_index = CHILD_PROCESS_INIT; | |
1240 | struct child_process check_worktree = CHILD_PROCESS_INIT; | |
1241 | struct child_process apply_index = CHILD_PROCESS_INIT; | |
1242 | struct child_process apply_worktree = CHILD_PROCESS_INIT; | |
1243 | int applies_index, applies_worktree; | |
1244 | ||
1245 | setup_child_process(s, &check_index, | |
1246 | "apply", "--cached", "--check", reverse, NULL); | |
1247 | applies_index = !pipe_command(&check_index, diff->buf, diff->len, | |
1248 | NULL, 0, NULL, 0); | |
1249 | ||
1250 | setup_child_process(s, &check_worktree, | |
1251 | "apply", "--check", reverse, NULL); | |
1252 | applies_worktree = !pipe_command(&check_worktree, diff->buf, diff->len, | |
1253 | NULL, 0, NULL, 0); | |
1254 | ||
1255 | if (applies_worktree && applies_index) { | |
1256 | setup_child_process(s, &apply_index, | |
1257 | "apply", "--cached", reverse, NULL); | |
1258 | pipe_command(&apply_index, diff->buf, diff->len, | |
1259 | NULL, 0, NULL, 0); | |
1260 | ||
1261 | setup_child_process(s, &apply_worktree, | |
1262 | "apply", reverse, NULL); | |
1263 | pipe_command(&apply_worktree, diff->buf, diff->len, | |
1264 | NULL, 0, NULL, 0); | |
1265 | ||
1266 | return 1; | |
1267 | } | |
1268 | ||
1269 | if (!applies_index) { | |
1270 | err(s, _("The selected hunks do not apply to the index!")); | |
1271 | if (prompt_yesno(s, _("Apply them to the worktree " | |
1272 | "anyway? ")) > 0) { | |
1273 | setup_child_process(s, &apply_worktree, | |
1274 | "apply", reverse, NULL); | |
1275 | return pipe_command(&apply_worktree, diff->buf, | |
1276 | diff->len, NULL, 0, NULL, 0); | |
1277 | } | |
1278 | err(s, _("Nothing was applied.\n")); | |
1279 | } else | |
1280 | /* As a last resort, show the diff to the user */ | |
1281 | fwrite(diff->buf, diff->len, 1, stderr); | |
1282 | ||
1283 | return 0; | |
1284 | } | |
1285 | ||
9254bdfb JS |
1286 | #define SUMMARY_HEADER_WIDTH 20 |
1287 | #define SUMMARY_LINE_WIDTH 80 | |
1288 | static void summarize_hunk(struct add_p_state *s, struct hunk *hunk, | |
1289 | struct strbuf *out) | |
1290 | { | |
1291 | struct hunk_header *header = &hunk->header; | |
1292 | struct strbuf *plain = &s->plain; | |
1293 | size_t len = out->len, i; | |
1294 | ||
1295 | strbuf_addf(out, " -%lu,%lu +%lu,%lu ", | |
1296 | header->old_offset, header->old_count, | |
1297 | header->new_offset, header->new_count); | |
1298 | if (out->len - len < SUMMARY_HEADER_WIDTH) | |
1299 | strbuf_addchars(out, ' ', | |
1300 | SUMMARY_HEADER_WIDTH + len - out->len); | |
1301 | for (i = hunk->start; i < hunk->end; i = find_next_line(plain, i)) | |
1302 | if (plain->buf[i] != ' ') | |
1303 | break; | |
1304 | if (i < hunk->end) | |
1305 | strbuf_add(out, plain->buf + i, find_next_line(plain, i) - i); | |
1306 | if (out->len - len > SUMMARY_LINE_WIDTH) | |
1307 | strbuf_setlen(out, len + SUMMARY_LINE_WIDTH); | |
1308 | strbuf_complete_line(out); | |
1309 | } | |
1310 | ||
1311 | #define DISPLAY_HUNKS_LINES 20 | |
1312 | static size_t display_hunks(struct add_p_state *s, | |
1313 | struct file_diff *file_diff, size_t start_index) | |
1314 | { | |
1315 | size_t end_index = start_index + DISPLAY_HUNKS_LINES; | |
1316 | ||
1317 | if (end_index > file_diff->hunk_nr) | |
1318 | end_index = file_diff->hunk_nr; | |
1319 | ||
1320 | while (start_index < end_index) { | |
1321 | struct hunk *hunk = file_diff->hunk + start_index++; | |
1322 | ||
1323 | strbuf_reset(&s->buf); | |
1324 | strbuf_addf(&s->buf, "%c%2d: ", hunk->use == USE_HUNK ? '+' | |
1325 | : hunk->use == SKIP_HUNK ? '-' : ' ', | |
1326 | (int)start_index); | |
1327 | summarize_hunk(s, hunk, &s->buf); | |
1328 | fputs(s->buf.buf, stdout); | |
1329 | } | |
1330 | ||
1331 | return end_index; | |
1332 | } | |
1333 | ||
54d9d9b2 JS |
1334 | static const char help_patch_remainder[] = |
1335 | N_("j - leave this hunk undecided, see next undecided hunk\n" | |
f6aa7ecc JS |
1336 | "J - leave this hunk undecided, see next hunk\n" |
1337 | "k - leave this hunk undecided, see previous undecided hunk\n" | |
1338 | "K - leave this hunk undecided, see previous hunk\n" | |
9254bdfb | 1339 | "g - select a hunk to go to\n" |
d6cf8733 | 1340 | "/ - search for a hunk matching the given regex\n" |
510aeca1 | 1341 | "s - split the current hunk into smaller hunks\n" |
bcdd297b | 1342 | "e - manually edit the current hunk\n" |
f6aa7ecc JS |
1343 | "? - print help\n"); |
1344 | ||
80399aec JS |
1345 | static int patch_update_file(struct add_p_state *s, |
1346 | struct file_diff *file_diff) | |
f6aa7ecc JS |
1347 | { |
1348 | size_t hunk_index = 0; | |
1349 | ssize_t i, undecided_previous, undecided_next; | |
1350 | struct hunk *hunk; | |
1351 | char ch; | |
1352 | struct child_process cp = CHILD_PROCESS_INIT; | |
ade246ef | 1353 | int colored = !!s->colored.len, quit = 0; |
0ecd9d27 | 1354 | enum prompt_mode_type prompt_mode_type; |
ce910287 PW |
1355 | enum { |
1356 | ALLOW_GOTO_PREVIOUS_HUNK = 1 << 0, | |
1357 | ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK = 1 << 1, | |
1358 | ALLOW_GOTO_NEXT_HUNK = 1 << 2, | |
1359 | ALLOW_GOTO_NEXT_UNDECIDED_HUNK = 1 << 3, | |
1360 | ALLOW_SEARCH_AND_GOTO = 1 << 4, | |
1361 | ALLOW_SPLIT = 1 << 5, | |
1362 | ALLOW_EDIT = 1 << 6 | |
1363 | } permitted = 0; | |
f6aa7ecc | 1364 | |
80399aec | 1365 | if (!file_diff->hunk_nr) |
f6aa7ecc JS |
1366 | return 0; |
1367 | ||
1368 | strbuf_reset(&s->buf); | |
5906d5de | 1369 | render_diff_header(s, file_diff, colored, &s->buf); |
f6aa7ecc JS |
1370 | fputs(s->buf.buf, stdout); |
1371 | for (;;) { | |
80399aec | 1372 | if (hunk_index >= file_diff->hunk_nr) |
f6aa7ecc | 1373 | hunk_index = 0; |
80399aec | 1374 | hunk = file_diff->hunk + hunk_index; |
f6aa7ecc JS |
1375 | |
1376 | undecided_previous = -1; | |
1377 | for (i = hunk_index - 1; i >= 0; i--) | |
80399aec | 1378 | if (file_diff->hunk[i].use == UNDECIDED_HUNK) { |
f6aa7ecc JS |
1379 | undecided_previous = i; |
1380 | break; | |
1381 | } | |
1382 | ||
1383 | undecided_next = -1; | |
80399aec JS |
1384 | for (i = hunk_index + 1; i < file_diff->hunk_nr; i++) |
1385 | if (file_diff->hunk[i].use == UNDECIDED_HUNK) { | |
f6aa7ecc JS |
1386 | undecided_next = i; |
1387 | break; | |
1388 | } | |
1389 | ||
1390 | /* Everything decided? */ | |
1391 | if (undecided_previous < 0 && undecided_next < 0 && | |
1392 | hunk->use != UNDECIDED_HUNK) | |
1393 | break; | |
1394 | ||
1395 | strbuf_reset(&s->buf); | |
25ea47af | 1396 | render_hunk(s, hunk, 0, colored, &s->buf); |
f6aa7ecc JS |
1397 | fputs(s->buf.buf, stdout); |
1398 | ||
1399 | strbuf_reset(&s->buf); | |
ce910287 PW |
1400 | if (undecided_previous >= 0) { |
1401 | permitted |= ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK; | |
f6aa7ecc | 1402 | strbuf_addstr(&s->buf, ",k"); |
ce910287 PW |
1403 | } |
1404 | if (hunk_index) { | |
1405 | permitted |= ALLOW_GOTO_PREVIOUS_HUNK; | |
f6aa7ecc | 1406 | strbuf_addstr(&s->buf, ",K"); |
ce910287 PW |
1407 | } |
1408 | if (undecided_next >= 0) { | |
1409 | permitted |= ALLOW_GOTO_NEXT_UNDECIDED_HUNK; | |
f6aa7ecc | 1410 | strbuf_addstr(&s->buf, ",j"); |
ce910287 PW |
1411 | } |
1412 | if (hunk_index + 1 < file_diff->hunk_nr) { | |
1413 | permitted |= ALLOW_GOTO_NEXT_HUNK; | |
f6aa7ecc | 1414 | strbuf_addstr(&s->buf, ",J"); |
ce910287 PW |
1415 | } |
1416 | if (file_diff->hunk_nr > 1) { | |
1417 | permitted |= ALLOW_SEARCH_AND_GOTO; | |
d6cf8733 | 1418 | strbuf_addstr(&s->buf, ",g,/"); |
ce910287 PW |
1419 | } |
1420 | if (hunk->splittable_into > 1) { | |
1421 | permitted |= ALLOW_SPLIT; | |
510aeca1 | 1422 | strbuf_addstr(&s->buf, ",s"); |
ce910287 | 1423 | } |
bcdd297b | 1424 | if (hunk_index + 1 > file_diff->mode_change && |
ce910287 PW |
1425 | !file_diff->deleted) { |
1426 | permitted |= ALLOW_EDIT; | |
bcdd297b | 1427 | strbuf_addstr(&s->buf, ",e"); |
ce910287 | 1428 | } |
0ecd9d27 JS |
1429 | if (file_diff->deleted) |
1430 | prompt_mode_type = PROMPT_DELETION; | |
2c8bd847 JS |
1431 | else if (file_diff->added) |
1432 | prompt_mode_type = PROMPT_ADDITION; | |
0ecd9d27 JS |
1433 | else if (file_diff->mode_change && !hunk_index) |
1434 | prompt_mode_type = PROMPT_MODE_CHANGE; | |
1435 | else | |
1436 | prompt_mode_type = PROMPT_HUNK; | |
1437 | ||
12c24cf8 JS |
1438 | color_fprintf(stdout, s->s.prompt_color, |
1439 | "(%"PRIuMAX"/%"PRIuMAX") ", | |
80399aec JS |
1440 | (uintmax_t)hunk_index + 1, |
1441 | (uintmax_t)file_diff->hunk_nr); | |
12c24cf8 | 1442 | color_fprintf(stdout, s->s.prompt_color, |
d2a233cb JS |
1443 | _(s->mode->prompt_mode[prompt_mode_type]), |
1444 | s->buf.buf); | |
f6aa7ecc | 1445 | fflush(stdout); |
04f816b1 | 1446 | if (read_single_character(s) == EOF) |
f6aa7ecc | 1447 | break; |
f6aa7ecc JS |
1448 | |
1449 | if (!s->answer.len) | |
1450 | continue; | |
1451 | ch = tolower(s->answer.buf[0]); | |
1452 | if (ch == 'y') { | |
1453 | hunk->use = USE_HUNK; | |
1454 | soft_increment: | |
1455 | hunk_index = undecided_next < 0 ? | |
80399aec | 1456 | file_diff->hunk_nr : undecided_next; |
f6aa7ecc JS |
1457 | } else if (ch == 'n') { |
1458 | hunk->use = SKIP_HUNK; | |
1459 | goto soft_increment; | |
1460 | } else if (ch == 'a') { | |
80399aec JS |
1461 | for (; hunk_index < file_diff->hunk_nr; hunk_index++) { |
1462 | hunk = file_diff->hunk + hunk_index; | |
f6aa7ecc JS |
1463 | if (hunk->use == UNDECIDED_HUNK) |
1464 | hunk->use = USE_HUNK; | |
1465 | } | |
ade246ef | 1466 | } else if (ch == 'd' || ch == 'q') { |
80399aec JS |
1467 | for (; hunk_index < file_diff->hunk_nr; hunk_index++) { |
1468 | hunk = file_diff->hunk + hunk_index; | |
f6aa7ecc JS |
1469 | if (hunk->use == UNDECIDED_HUNK) |
1470 | hunk->use = SKIP_HUNK; | |
1471 | } | |
ade246ef JS |
1472 | if (ch == 'q') { |
1473 | quit = 1; | |
1474 | break; | |
1475 | } | |
7584dd3c | 1476 | } else if (s->answer.buf[0] == 'K') { |
ce910287 | 1477 | if (permitted & ALLOW_GOTO_PREVIOUS_HUNK) |
7584dd3c JS |
1478 | hunk_index--; |
1479 | else | |
1480 | err(s, _("No previous hunk")); | |
1481 | } else if (s->answer.buf[0] == 'J') { | |
ce910287 | 1482 | if (permitted & ALLOW_GOTO_NEXT_HUNK) |
7584dd3c JS |
1483 | hunk_index++; |
1484 | else | |
1485 | err(s, _("No next hunk")); | |
1486 | } else if (s->answer.buf[0] == 'k') { | |
ce910287 | 1487 | if (permitted & ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK) |
7584dd3c JS |
1488 | hunk_index = undecided_previous; |
1489 | else | |
1490 | err(s, _("No previous hunk")); | |
1491 | } else if (s->answer.buf[0] == 'j') { | |
ce910287 | 1492 | if (permitted & ALLOW_GOTO_NEXT_UNDECIDED_HUNK) |
7584dd3c JS |
1493 | hunk_index = undecided_next; |
1494 | else | |
1495 | err(s, _("No next hunk")); | |
9254bdfb JS |
1496 | } else if (s->answer.buf[0] == 'g') { |
1497 | char *pend; | |
1498 | unsigned long response; | |
1499 | ||
ce910287 | 1500 | if (!(permitted & ALLOW_SEARCH_AND_GOTO)) { |
9254bdfb JS |
1501 | err(s, _("No other hunks to goto")); |
1502 | continue; | |
1503 | } | |
1504 | strbuf_remove(&s->answer, 0, 1); | |
1505 | strbuf_trim(&s->answer); | |
1506 | i = hunk_index - DISPLAY_HUNKS_LINES / 2; | |
1507 | if (i < file_diff->mode_change) | |
1508 | i = file_diff->mode_change; | |
1509 | while (s->answer.len == 0) { | |
1510 | i = display_hunks(s, file_diff, i); | |
1511 | printf("%s", i < file_diff->hunk_nr ? | |
1512 | _("go to which hunk (<ret> to see " | |
1513 | "more)? ") : _("go to which hunk? ")); | |
1514 | fflush(stdout); | |
1515 | if (strbuf_getline(&s->answer, | |
1516 | stdin) == EOF) | |
1517 | break; | |
1518 | strbuf_trim_trailing_newline(&s->answer); | |
1519 | } | |
1520 | ||
1521 | strbuf_trim(&s->answer); | |
1522 | response = strtoul(s->answer.buf, &pend, 10); | |
1523 | if (*pend || pend == s->answer.buf) | |
1524 | err(s, _("Invalid number: '%s'"), | |
1525 | s->answer.buf); | |
1526 | else if (0 < response && response <= file_diff->hunk_nr) | |
1527 | hunk_index = response - 1; | |
1528 | else | |
1529 | err(s, Q_("Sorry, only %d hunk available.", | |
1530 | "Sorry, only %d hunks available.", | |
1531 | file_diff->hunk_nr), | |
1532 | (int)file_diff->hunk_nr); | |
d6cf8733 JS |
1533 | } else if (s->answer.buf[0] == '/') { |
1534 | regex_t regex; | |
1535 | int ret; | |
1536 | ||
ce910287 | 1537 | if (!(permitted & ALLOW_SEARCH_AND_GOTO)) { |
d6cf8733 JS |
1538 | err(s, _("No other hunks to search")); |
1539 | continue; | |
1540 | } | |
1541 | strbuf_remove(&s->answer, 0, 1); | |
1542 | strbuf_trim_trailing_newline(&s->answer); | |
1543 | if (s->answer.len == 0) { | |
1544 | printf("%s", _("search for regex? ")); | |
1545 | fflush(stdout); | |
1546 | if (strbuf_getline(&s->answer, | |
1547 | stdin) == EOF) | |
1548 | break; | |
1549 | strbuf_trim_trailing_newline(&s->answer); | |
1550 | if (s->answer.len == 0) | |
1551 | continue; | |
1552 | } | |
1553 | ret = regcomp(®ex, s->answer.buf, | |
1554 | REG_EXTENDED | REG_NOSUB | REG_NEWLINE); | |
1555 | if (ret) { | |
1556 | char errbuf[1024]; | |
1557 | ||
1558 | regerror(ret, ®ex, errbuf, sizeof(errbuf)); | |
1559 | err(s, _("Malformed search regexp %s: %s"), | |
1560 | s->answer.buf, errbuf); | |
1561 | continue; | |
1562 | } | |
1563 | i = hunk_index; | |
1564 | for (;;) { | |
1565 | /* render the hunk into a scratch buffer */ | |
1566 | render_hunk(s, file_diff->hunk + i, 0, 0, | |
1567 | &s->buf); | |
1568 | if (regexec(®ex, s->buf.buf, 0, NULL, 0) | |
1569 | != REG_NOMATCH) | |
1570 | break; | |
1571 | i++; | |
1572 | if (i == file_diff->hunk_nr) | |
1573 | i = 0; | |
1574 | if (i != hunk_index) | |
1575 | continue; | |
1576 | err(s, _("No hunk matches the given pattern")); | |
1577 | break; | |
1578 | } | |
1579 | hunk_index = i; | |
510aeca1 JS |
1580 | } else if (s->answer.buf[0] == 's') { |
1581 | size_t splittable_into = hunk->splittable_into; | |
ce910287 | 1582 | if (!(permitted & ALLOW_SPLIT)) |
510aeca1 JS |
1583 | err(s, _("Sorry, cannot split this hunk")); |
1584 | else if (!split_hunk(s, file_diff, | |
1585 | hunk - file_diff->hunk)) | |
1586 | color_fprintf_ln(stdout, s->s.header_color, | |
1587 | _("Split into %d hunks."), | |
1588 | (int)splittable_into); | |
bcdd297b | 1589 | } else if (s->answer.buf[0] == 'e') { |
ce910287 | 1590 | if (!(permitted & ALLOW_EDIT)) |
bcdd297b JS |
1591 | err(s, _("Sorry, cannot edit this hunk")); |
1592 | else if (edit_hunk_loop(s, file_diff, hunk) >= 0) { | |
1593 | hunk->use = USE_HUNK; | |
1594 | goto soft_increment; | |
1595 | } | |
54d9d9b2 JS |
1596 | } else { |
1597 | const char *p = _(help_patch_remainder), *eol = p; | |
1598 | ||
1599 | color_fprintf(stdout, s->s.help_color, "%s", | |
d2a233cb | 1600 | _(s->mode->help_patch_text)); |
54d9d9b2 JS |
1601 | |
1602 | /* | |
1603 | * Show only those lines of the remainder that are | |
1604 | * actually applicable with the current hunk. | |
1605 | */ | |
1606 | for (; *p; p = eol + (*eol == '\n')) { | |
1607 | eol = strchrnul(p, '\n'); | |
1608 | ||
1609 | /* | |
1610 | * `s->buf` still contains the part of the | |
1611 | * commands shown in the prompt that are not | |
1612 | * always available. | |
1613 | */ | |
1614 | if (*p != '?' && !strchr(s->buf.buf, *p)) | |
1615 | continue; | |
1616 | ||
1617 | color_fprintf_ln(stdout, s->s.help_color, | |
1618 | "%.*s", (int)(eol - p), p); | |
1619 | } | |
1620 | } | |
f6aa7ecc JS |
1621 | } |
1622 | ||
1623 | /* Any hunk to be used? */ | |
80399aec JS |
1624 | for (i = 0; i < file_diff->hunk_nr; i++) |
1625 | if (file_diff->hunk[i].use == USE_HUNK) | |
f6aa7ecc JS |
1626 | break; |
1627 | ||
80399aec | 1628 | if (i < file_diff->hunk_nr) { |
f6aa7ecc JS |
1629 | /* At least one hunk selected: apply */ |
1630 | strbuf_reset(&s->buf); | |
bcdd297b | 1631 | reassemble_patch(s, file_diff, 0, &s->buf); |
f6aa7ecc | 1632 | |
25ea47af | 1633 | discard_index(s->s.r->index); |
52628f94 JS |
1634 | if (s->mode->apply_for_checkout) |
1635 | apply_for_checkout(s, &s->buf, | |
1636 | s->mode->is_reverse); | |
1637 | else { | |
1638 | setup_child_process(s, &cp, "apply", NULL); | |
ef8d7ac4 | 1639 | strvec_pushv(&cp.args, s->mode->apply_args); |
52628f94 JS |
1640 | if (pipe_command(&cp, s->buf.buf, s->buf.len, |
1641 | NULL, 0, NULL, 0)) | |
1642 | error(_("'git apply' failed")); | |
1643 | } | |
25ea47af JS |
1644 | if (!repo_read_index(s->s.r)) |
1645 | repo_refresh_and_write_index(s->s.r, REFRESH_QUIET, 0, | |
f6aa7ecc JS |
1646 | 1, NULL, NULL, NULL); |
1647 | } | |
1648 | ||
1649 | putchar('\n'); | |
ade246ef | 1650 | return quit; |
f6aa7ecc JS |
1651 | } |
1652 | ||
d2a233cb JS |
1653 | int run_add_p(struct repository *r, enum add_p_mode mode, |
1654 | const char *revision, const struct pathspec *ps) | |
f6aa7ecc | 1655 | { |
25ea47af JS |
1656 | struct add_p_state s = { |
1657 | { r }, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT | |
1658 | }; | |
2e408319 | 1659 | size_t i, binary_count = 0; |
25ea47af JS |
1660 | |
1661 | init_add_i_state(&s.s, r); | |
f6aa7ecc | 1662 | |
36bae1dc JS |
1663 | if (mode == ADD_P_STASH) |
1664 | s.mode = &patch_mode_stash; | |
1665 | else if (mode == ADD_P_RESET) { | |
1666 | if (!revision || !strcmp(revision, "HEAD")) | |
1667 | s.mode = &patch_mode_reset_head; | |
1668 | else | |
1669 | s.mode = &patch_mode_reset_nothead; | |
52628f94 JS |
1670 | } else if (mode == ADD_P_CHECKOUT) { |
1671 | if (!revision) | |
1672 | s.mode = &patch_mode_checkout_index; | |
1673 | else if (!strcmp(revision, "HEAD")) | |
1674 | s.mode = &patch_mode_checkout_head; | |
1675 | else | |
1676 | s.mode = &patch_mode_checkout_nothead; | |
cee6cb73 JS |
1677 | } else if (mode == ADD_P_WORKTREE) { |
1678 | if (!revision) | |
1679 | s.mode = &patch_mode_checkout_index; | |
1680 | else if (!strcmp(revision, "HEAD")) | |
1681 | s.mode = &patch_mode_worktree_head; | |
1682 | else | |
1683 | s.mode = &patch_mode_worktree_nothead; | |
36bae1dc JS |
1684 | } else |
1685 | s.mode = &patch_mode_add; | |
d2a233cb JS |
1686 | s.revision = revision; |
1687 | ||
f6aa7ecc | 1688 | if (discard_index(r->index) < 0 || repo_read_index(r) < 0 || |
36bae1dc JS |
1689 | (!s.mode->index_only && |
1690 | repo_refresh_and_write_index(r, REFRESH_QUIET, 0, 1, | |
1691 | NULL, NULL, NULL) < 0) || | |
f6aa7ecc JS |
1692 | parse_diff(&s, ps) < 0) { |
1693 | strbuf_release(&s.plain); | |
e3bd11b4 | 1694 | strbuf_release(&s.colored); |
180f48df | 1695 | clear_add_i_state(&s.s); |
f6aa7ecc JS |
1696 | return -1; |
1697 | } | |
1698 | ||
80399aec | 1699 | for (i = 0; i < s.file_diff_nr; i++) |
2e408319 JS |
1700 | if (s.file_diff[i].binary && !s.file_diff[i].hunk_nr) |
1701 | binary_count++; | |
1702 | else if (patch_update_file(&s, s.file_diff + i)) | |
80399aec | 1703 | break; |
f6aa7ecc | 1704 | |
2e408319 JS |
1705 | if (s.file_diff_nr == 0) |
1706 | fprintf(stderr, _("No changes.\n")); | |
1707 | else if (binary_count == s.file_diff_nr) | |
1708 | fprintf(stderr, _("Only binary files changed.\n")); | |
1709 | ||
f6aa7ecc JS |
1710 | strbuf_release(&s.answer); |
1711 | strbuf_release(&s.buf); | |
1712 | strbuf_release(&s.plain); | |
e3bd11b4 | 1713 | strbuf_release(&s.colored); |
180f48df | 1714 | clear_add_i_state(&s.s); |
f6aa7ecc JS |
1715 | return 0; |
1716 | } |