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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 | ||
324efcf6 PW |
269 | static void add_p_state_clear(struct add_p_state *s) |
270 | { | |
271 | size_t i; | |
272 | ||
273 | strbuf_release(&s->answer); | |
274 | strbuf_release(&s->buf); | |
275 | strbuf_release(&s->plain); | |
276 | strbuf_release(&s->colored); | |
277 | for (i = 0; i < s->file_diff_nr; i++) | |
278 | free(s->file_diff[i].hunk); | |
279 | free(s->file_diff); | |
280 | clear_add_i_state(&s->s); | |
281 | } | |
282 | ||
48ca53ca | 283 | __attribute__((format (printf, 2, 3))) |
7584dd3c JS |
284 | static void err(struct add_p_state *s, const char *fmt, ...) |
285 | { | |
286 | va_list args; | |
287 | ||
288 | va_start(args, fmt); | |
289 | fputs(s->s.error_color, stderr); | |
290 | vfprintf(stderr, fmt, args); | |
291 | fputs(s->s.reset_color, stderr); | |
292 | fputc('\n', stderr); | |
293 | va_end(args); | |
294 | } | |
295 | ||
f6aa7ecc JS |
296 | static void setup_child_process(struct add_p_state *s, |
297 | struct child_process *cp, ...) | |
298 | { | |
299 | va_list ap; | |
300 | const char *arg; | |
301 | ||
302 | va_start(ap, cp); | |
303 | while ((arg = va_arg(ap, const char *))) | |
ef8d7ac4 | 304 | strvec_push(&cp->args, arg); |
f6aa7ecc JS |
305 | va_end(ap); |
306 | ||
307 | cp->git_cmd = 1; | |
ef8d7ac4 | 308 | strvec_pushf(&cp->env_array, |
f6d8942b | 309 | INDEX_ENVIRONMENT "=%s", s->s.r->index_file); |
25ea47af JS |
310 | } |
311 | ||
312 | static int parse_range(const char **p, | |
313 | unsigned long *offset, unsigned long *count) | |
314 | { | |
315 | char *pend; | |
316 | ||
317 | *offset = strtoul(*p, &pend, 10); | |
318 | if (pend == *p) | |
319 | return -1; | |
320 | if (*pend != ',') { | |
321 | *count = 1; | |
322 | *p = pend; | |
323 | return 0; | |
324 | } | |
325 | *count = strtoul(pend + 1, (char **)p, 10); | |
326 | return *p == pend + 1 ? -1 : 0; | |
327 | } | |
328 | ||
329 | static int parse_hunk_header(struct add_p_state *s, struct hunk *hunk) | |
330 | { | |
331 | struct hunk_header *header = &hunk->header; | |
332 | const char *line = s->plain.buf + hunk->start, *p = line; | |
333 | char *eol = memchr(p, '\n', s->plain.len - hunk->start); | |
334 | ||
335 | if (!eol) | |
336 | eol = s->plain.buf + s->plain.len; | |
337 | ||
338 | if (!skip_prefix(p, "@@ -", &p) || | |
339 | parse_range(&p, &header->old_offset, &header->old_count) < 0 || | |
340 | !skip_prefix(p, " +", &p) || | |
341 | parse_range(&p, &header->new_offset, &header->new_count) < 0 || | |
342 | !skip_prefix(p, " @@", &p)) | |
343 | return error(_("could not parse hunk header '%.*s'"), | |
344 | (int)(eol - line), line); | |
345 | ||
346 | hunk->start = eol - s->plain.buf + (*eol == '\n'); | |
347 | header->extra_start = p - s->plain.buf; | |
348 | header->extra_end = hunk->start; | |
349 | ||
350 | if (!s->colored.len) { | |
351 | header->colored_extra_start = header->colored_extra_end = 0; | |
352 | return 0; | |
353 | } | |
354 | ||
355 | /* Now find the extra text in the colored diff */ | |
356 | line = s->colored.buf + hunk->colored_start; | |
357 | eol = memchr(line, '\n', s->colored.len - hunk->colored_start); | |
358 | if (!eol) | |
359 | eol = s->colored.buf + s->colored.len; | |
360 | p = memmem(line, eol - line, "@@ -", 4); | |
361 | if (!p) | |
362 | return error(_("could not parse colored hunk header '%.*s'"), | |
363 | (int)(eol - line), line); | |
364 | p = memmem(p + 4, eol - p - 4, " @@", 3); | |
365 | if (!p) | |
366 | return error(_("could not parse colored hunk header '%.*s'"), | |
367 | (int)(eol - line), line); | |
368 | hunk->colored_start = eol - s->colored.buf + (*eol == '\n'); | |
369 | header->colored_extra_start = p + 3 - s->colored.buf; | |
370 | header->colored_extra_end = hunk->colored_start; | |
371 | ||
372 | return 0; | |
f6aa7ecc JS |
373 | } |
374 | ||
5906d5de JS |
375 | static int is_octal(const char *p, size_t len) |
376 | { | |
377 | if (!len) | |
378 | return 0; | |
379 | ||
380 | while (len--) | |
381 | if (*p < '0' || *(p++) > '7') | |
382 | return 0; | |
383 | return 1; | |
384 | } | |
385 | ||
7008ddc6 PW |
386 | static void complete_file(char marker, struct hunk *hunk) |
387 | { | |
388 | if (marker == '-' || marker == '+') | |
389 | /* | |
390 | * Last hunk ended in non-context line (i.e. it | |
391 | * appended lines to the file, so there are no | |
392 | * trailing context lines). | |
393 | */ | |
394 | hunk->splittable_into++; | |
395 | } | |
396 | ||
f6aa7ecc JS |
397 | static int parse_diff(struct add_p_state *s, const struct pathspec *ps) |
398 | { | |
ef8d7ac4 | 399 | struct strvec args = STRVEC_INIT; |
08b1ea4c | 400 | const char *diff_algorithm = s->s.interactive_diff_algorithm; |
e3bd11b4 | 401 | struct strbuf *plain = &s->plain, *colored = NULL; |
f6aa7ecc | 402 | struct child_process cp = CHILD_PROCESS_INIT; |
510aeca1 | 403 | char *p, *pend, *colored_p = NULL, *colored_pend = NULL, marker = '\0'; |
80399aec JS |
404 | size_t file_diff_alloc = 0, i, color_arg_index; |
405 | struct file_diff *file_diff = NULL; | |
f6aa7ecc JS |
406 | struct hunk *hunk = NULL; |
407 | int res; | |
408 | ||
ef8d7ac4 | 409 | strvec_pushv(&args, s->mode->diff_cmd); |
08b1ea4c | 410 | if (diff_algorithm) |
ef8d7ac4 | 411 | strvec_pushf(&args, "--diff-algorithm=%s", diff_algorithm); |
d2a233cb JS |
412 | if (s->revision) { |
413 | struct object_id oid; | |
ef8d7ac4 | 414 | strvec_push(&args, |
f6d8942b JK |
415 | /* could be on an unborn branch */ |
416 | !strcmp("HEAD", s->revision) && | |
417 | get_oid("HEAD", &oid) ? | |
418 | empty_tree_oid_hex() : s->revision); | |
d2a233cb | 419 | } |
d70a9eb6 | 420 | color_arg_index = args.nr; |
f6aa7ecc | 421 | /* Use `--no-color` explicitly, just in case `diff.color = always`. */ |
ef8d7ac4 | 422 | strvec_pushl(&args, "--no-color", "-p", "--", NULL); |
f6aa7ecc | 423 | for (i = 0; i < ps->nr; i++) |
ef8d7ac4 | 424 | strvec_push(&args, ps->items[i].original); |
f6aa7ecc | 425 | |
e3bd11b4 | 426 | setup_child_process(s, &cp, NULL); |
6def0ff8 | 427 | strvec_pushv(&cp.args, args.v); |
f6aa7ecc | 428 | res = capture_command(&cp, plain, 0); |
e3bd11b4 | 429 | if (res) { |
ef8d7ac4 | 430 | strvec_clear(&args); |
f6aa7ecc | 431 | return error(_("could not parse diff")); |
e3bd11b4 JS |
432 | } |
433 | if (!plain->len) { | |
ef8d7ac4 | 434 | strvec_clear(&args); |
f6aa7ecc | 435 | return 0; |
e3bd11b4 | 436 | } |
f6aa7ecc JS |
437 | strbuf_complete_line(plain); |
438 | ||
e3bd11b4 JS |
439 | if (want_color_fd(1, -1)) { |
440 | struct child_process colored_cp = CHILD_PROCESS_INIT; | |
180f48df | 441 | const char *diff_filter = s->s.interactive_diff_filter; |
e3bd11b4 JS |
442 | |
443 | setup_child_process(s, &colored_cp, NULL); | |
d70a9eb6 | 444 | xsnprintf((char *)args.v[color_arg_index], 8, "--color"); |
6def0ff8 | 445 | strvec_pushv(&colored_cp.args, args.v); |
e3bd11b4 JS |
446 | colored = &s->colored; |
447 | res = capture_command(&colored_cp, colored, 0); | |
ef8d7ac4 | 448 | strvec_clear(&args); |
e3bd11b4 JS |
449 | if (res) |
450 | return error(_("could not parse colored diff")); | |
180f48df JS |
451 | |
452 | if (diff_filter) { | |
453 | struct child_process filter_cp = CHILD_PROCESS_INIT; | |
454 | ||
455 | setup_child_process(s, &filter_cp, | |
456 | diff_filter, NULL); | |
457 | filter_cp.git_cmd = 0; | |
458 | filter_cp.use_shell = 1; | |
459 | strbuf_reset(&s->buf); | |
460 | if (pipe_command(&filter_cp, | |
461 | colored->buf, colored->len, | |
462 | &s->buf, colored->len, | |
463 | NULL, 0) < 0) | |
464 | return error(_("failed to run '%s'"), | |
465 | diff_filter); | |
466 | strbuf_swap(colored, &s->buf); | |
467 | } | |
468 | ||
e3bd11b4 JS |
469 | strbuf_complete_line(colored); |
470 | colored_p = colored->buf; | |
471 | colored_pend = colored_p + colored->len; | |
472 | } | |
ef8d7ac4 | 473 | strvec_clear(&args); |
e3bd11b4 | 474 | |
80399aec | 475 | /* parse files and hunks */ |
f6aa7ecc JS |
476 | p = plain->buf; |
477 | pend = p + plain->len; | |
478 | while (p != pend) { | |
479 | char *eol = memchr(p, '\n', pend - p); | |
75a009dc | 480 | const char *deleted = NULL, *mode_change = NULL; |
47dc4fd5 | 481 | |
f6aa7ecc JS |
482 | if (!eol) |
483 | eol = pend; | |
484 | ||
485 | if (starts_with(p, "diff ")) { | |
7008ddc6 | 486 | complete_file(marker, hunk); |
2ebe436c | 487 | ALLOC_GROW_BY(s->file_diff, s->file_diff_nr, 1, |
80399aec JS |
488 | file_diff_alloc); |
489 | file_diff = s->file_diff + s->file_diff_nr - 1; | |
80399aec JS |
490 | hunk = &file_diff->head; |
491 | hunk->start = p - plain->buf; | |
492 | if (colored_p) | |
493 | hunk->colored_start = colored_p - colored->buf; | |
510aeca1 | 494 | marker = '\0'; |
f6aa7ecc JS |
495 | } else if (p == plain->buf) |
496 | BUG("diff starts with unexpected line:\n" | |
497 | "%.*s\n", (int)(eol - p), p); | |
75a009dc | 498 | else if (file_diff->deleted) |
47dc4fd5 JS |
499 | ; /* keep the rest of the file in a single "hunk" */ |
500 | else if (starts_with(p, "@@ ") || | |
501 | (hunk == &file_diff->head && | |
75a009dc | 502 | (skip_prefix(p, "deleted file", &deleted)))) { |
510aeca1 JS |
503 | if (marker == '-' || marker == '+') |
504 | /* | |
505 | * Should not happen; previous hunk did not end | |
506 | * in a context line? Handle it anyway. | |
507 | */ | |
508 | hunk->splittable_into++; | |
509 | ||
2ebe436c | 510 | ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1, |
80399aec JS |
511 | file_diff->hunk_alloc); |
512 | hunk = file_diff->hunk + file_diff->hunk_nr - 1; | |
f6aa7ecc JS |
513 | |
514 | hunk->start = p - plain->buf; | |
e3bd11b4 JS |
515 | if (colored) |
516 | hunk->colored_start = colored_p - colored->buf; | |
25ea47af | 517 | |
47dc4fd5 JS |
518 | if (deleted) |
519 | file_diff->deleted = 1; | |
520 | else if (parse_hunk_header(s, hunk) < 0) | |
25ea47af | 521 | return -1; |
510aeca1 JS |
522 | |
523 | /* | |
524 | * Start counting into how many hunks this one can be | |
525 | * split | |
526 | */ | |
527 | marker = *p; | |
75a009dc PW |
528 | } else if (hunk == &file_diff->head && |
529 | starts_with(p, "new file")) { | |
530 | file_diff->added = 1; | |
5906d5de JS |
531 | } else if (hunk == &file_diff->head && |
532 | skip_prefix(p, "old mode ", &mode_change) && | |
533 | is_octal(mode_change, eol - mode_change)) { | |
534 | if (file_diff->mode_change) | |
535 | BUG("double mode change?\n\n%.*s", | |
536 | (int)(eol - plain->buf), plain->buf); | |
2ebe436c | 537 | if (file_diff->hunk_nr) |
5906d5de JS |
538 | BUG("mode change in the middle?\n\n%.*s", |
539 | (int)(eol - plain->buf), plain->buf); | |
540 | ||
541 | /* | |
542 | * Do *not* change `hunk`: the mode change pseudo-hunk | |
543 | * is _part of_ the header "hunk". | |
544 | */ | |
545 | file_diff->mode_change = 1; | |
2ebe436c | 546 | ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1, |
5906d5de | 547 | file_diff->hunk_alloc); |
5906d5de JS |
548 | file_diff->hunk->start = p - plain->buf; |
549 | if (colored_p) | |
550 | file_diff->hunk->colored_start = | |
551 | colored_p - colored->buf; | |
552 | } else if (hunk == &file_diff->head && | |
553 | skip_prefix(p, "new mode ", &mode_change) && | |
554 | is_octal(mode_change, eol - mode_change)) { | |
555 | ||
556 | /* | |
557 | * Extend the "mode change" pseudo-hunk to include also | |
558 | * the "new mode" line. | |
559 | */ | |
560 | if (!file_diff->mode_change) | |
561 | BUG("'new mode' without 'old mode'?\n\n%.*s", | |
562 | (int)(eol - plain->buf), plain->buf); | |
563 | if (file_diff->hunk_nr != 1) | |
564 | BUG("mode change in the middle?\n\n%.*s", | |
565 | (int)(eol - plain->buf), plain->buf); | |
566 | if (p - plain->buf != file_diff->hunk->end) | |
567 | BUG("'new mode' does not immediately follow " | |
568 | "'old mode'?\n\n%.*s", | |
569 | (int)(eol - plain->buf), plain->buf); | |
2e408319 JS |
570 | } else if (hunk == &file_diff->head && |
571 | starts_with(p, "Binary files ")) | |
572 | file_diff->binary = 1; | |
f6aa7ecc | 573 | |
2c8bd847 JS |
574 | if (!!file_diff->deleted + !!file_diff->added + |
575 | !!file_diff->mode_change > 1) | |
576 | BUG("diff can only contain delete *or* add *or* a " | |
577 | "mode change?!?\n%.*s", | |
5906d5de JS |
578 | (int)(eol - (plain->buf + file_diff->head.start)), |
579 | plain->buf + file_diff->head.start); | |
580 | ||
510aeca1 JS |
581 | if ((marker == '-' || marker == '+') && *p == ' ') |
582 | hunk->splittable_into++; | |
583 | if (marker && *p != '\\') | |
584 | marker = *p; | |
585 | ||
f6aa7ecc JS |
586 | p = eol == pend ? pend : eol + 1; |
587 | hunk->end = p - plain->buf; | |
e3bd11b4 JS |
588 | |
589 | if (colored) { | |
590 | char *colored_eol = memchr(colored_p, '\n', | |
591 | colored_pend - colored_p); | |
592 | if (colored_eol) | |
593 | colored_p = colored_eol + 1; | |
180f48df JS |
594 | else if (p != pend) |
595 | /* colored shorter than non-colored? */ | |
596 | goto mismatched_output; | |
e3bd11b4 JS |
597 | else |
598 | colored_p = colored_pend; | |
599 | ||
600 | hunk->colored_end = colored_p - colored->buf; | |
601 | } | |
5906d5de JS |
602 | |
603 | if (mode_change) { | |
604 | if (file_diff->hunk_nr != 1) | |
605 | BUG("mode change in hunk #%d???", | |
606 | (int)file_diff->hunk_nr); | |
607 | /* Adjust the end of the "mode change" pseudo-hunk */ | |
608 | file_diff->hunk->end = hunk->end; | |
609 | if (colored) | |
610 | file_diff->hunk->colored_end = hunk->colored_end; | |
611 | } | |
f6aa7ecc | 612 | } |
7008ddc6 | 613 | complete_file(marker, hunk); |
510aeca1 | 614 | |
180f48df JS |
615 | /* non-colored shorter than colored? */ |
616 | if (colored_p != colored_pend) { | |
617 | mismatched_output: | |
618 | error(_("mismatched output from interactive.diffFilter")); | |
619 | advise(_("Your filter must maintain a one-to-one correspondence\n" | |
620 | "between its input and output lines.")); | |
621 | return -1; | |
622 | } | |
623 | ||
f6aa7ecc JS |
624 | return 0; |
625 | } | |
626 | ||
510aeca1 JS |
627 | static size_t find_next_line(struct strbuf *sb, size_t offset) |
628 | { | |
629 | char *eol; | |
630 | ||
631 | if (offset >= sb->len) | |
632 | BUG("looking for next line beyond buffer (%d >= %d)\n%s", | |
633 | (int)offset, (int)sb->len, sb->buf); | |
634 | ||
635 | eol = memchr(sb->buf + offset, '\n', sb->len - offset); | |
636 | if (!eol) | |
637 | return sb->len; | |
638 | return eol - sb->buf + 1; | |
639 | } | |
640 | ||
f6aa7ecc | 641 | static void render_hunk(struct add_p_state *s, struct hunk *hunk, |
25ea47af | 642 | ssize_t delta, int colored, struct strbuf *out) |
f6aa7ecc | 643 | { |
25ea47af JS |
644 | struct hunk_header *header = &hunk->header; |
645 | ||
646 | if (hunk->header.old_offset != 0 || hunk->header.new_offset != 0) { | |
647 | /* | |
648 | * Generate the hunk header dynamically, except for special | |
649 | * hunks (such as the diff header). | |
650 | */ | |
651 | const char *p; | |
652 | size_t len; | |
653 | unsigned long old_offset = header->old_offset; | |
654 | unsigned long new_offset = header->new_offset; | |
655 | ||
656 | if (!colored) { | |
657 | p = s->plain.buf + header->extra_start; | |
658 | len = header->extra_end - header->extra_start; | |
659 | } else { | |
660 | strbuf_addstr(out, s->s.fraginfo_color); | |
661 | p = s->colored.buf + header->colored_extra_start; | |
662 | len = header->colored_extra_end | |
663 | - header->colored_extra_start; | |
664 | } | |
665 | ||
d2a233cb JS |
666 | if (s->mode->is_reverse) |
667 | old_offset -= delta; | |
668 | else | |
669 | new_offset += delta; | |
25ea47af | 670 | |
decc9ee4 JS |
671 | strbuf_addf(out, "@@ -%lu", old_offset); |
672 | if (header->old_count != 1) | |
673 | strbuf_addf(out, ",%lu", header->old_count); | |
674 | strbuf_addf(out, " +%lu", new_offset); | |
675 | if (header->new_count != 1) | |
676 | strbuf_addf(out, ",%lu", header->new_count); | |
677 | strbuf_addstr(out, " @@"); | |
678 | ||
25ea47af JS |
679 | if (len) |
680 | strbuf_add(out, p, len); | |
681 | else if (colored) | |
6f1a5caa | 682 | strbuf_addf(out, "%s\n", s->s.reset_color); |
25ea47af JS |
683 | else |
684 | strbuf_addch(out, '\n'); | |
685 | } | |
686 | ||
e3bd11b4 JS |
687 | if (colored) |
688 | strbuf_add(out, s->colored.buf + hunk->colored_start, | |
689 | hunk->colored_end - hunk->colored_start); | |
690 | else | |
691 | strbuf_add(out, s->plain.buf + hunk->start, | |
692 | hunk->end - hunk->start); | |
f6aa7ecc JS |
693 | } |
694 | ||
5906d5de JS |
695 | static void render_diff_header(struct add_p_state *s, |
696 | struct file_diff *file_diff, int colored, | |
697 | struct strbuf *out) | |
698 | { | |
699 | /* | |
700 | * If there was a mode change, the first hunk is a pseudo hunk that | |
701 | * corresponds to the mode line in the header. If the user did not want | |
702 | * to stage that "hunk", we actually have to cut it out from the header. | |
703 | */ | |
704 | int skip_mode_change = | |
705 | file_diff->mode_change && file_diff->hunk->use != USE_HUNK; | |
706 | struct hunk *head = &file_diff->head, *first = file_diff->hunk; | |
707 | ||
708 | if (!skip_mode_change) { | |
709 | render_hunk(s, head, 0, colored, out); | |
710 | return; | |
711 | } | |
712 | ||
713 | if (colored) { | |
714 | const char *p = s->colored.buf; | |
715 | ||
716 | strbuf_add(out, p + head->colored_start, | |
717 | first->colored_start - head->colored_start); | |
718 | strbuf_add(out, p + first->colored_end, | |
719 | head->colored_end - first->colored_end); | |
720 | } else { | |
721 | const char *p = s->plain.buf; | |
722 | ||
723 | strbuf_add(out, p + head->start, first->start - head->start); | |
724 | strbuf_add(out, p + first->end, head->end - first->end); | |
725 | } | |
726 | } | |
727 | ||
11f2c0da JS |
728 | /* Coalesce hunks again that were split */ |
729 | static int merge_hunks(struct add_p_state *s, struct file_diff *file_diff, | |
bcdd297b | 730 | size_t *hunk_index, int use_all, struct hunk *merged) |
11f2c0da | 731 | { |
bcdd297b | 732 | size_t i = *hunk_index, delta; |
11f2c0da JS |
733 | struct hunk *hunk = file_diff->hunk + i; |
734 | /* `header` corresponds to the merged hunk */ | |
735 | struct hunk_header *header = &merged->header, *next; | |
736 | ||
bcdd297b | 737 | if (!use_all && hunk->use != USE_HUNK) |
11f2c0da JS |
738 | return 0; |
739 | ||
740 | *merged = *hunk; | |
741 | /* We simply skip the colored part (if any) when merging hunks */ | |
742 | merged->colored_start = merged->colored_end = 0; | |
743 | ||
744 | for (; i + 1 < file_diff->hunk_nr; i++) { | |
745 | hunk++; | |
746 | next = &hunk->header; | |
747 | ||
748 | /* | |
749 | * Stop merging hunks when: | |
750 | * | |
751 | * - the hunk is not selected for use, or | |
752 | * - the hunk does not overlap with the already-merged hunk(s) | |
753 | */ | |
bcdd297b JS |
754 | if ((!use_all && hunk->use != USE_HUNK) || |
755 | header->new_offset >= next->new_offset + merged->delta || | |
756 | header->new_offset + header->new_count | |
757 | < next->new_offset + merged->delta) | |
11f2c0da JS |
758 | break; |
759 | ||
bcdd297b JS |
760 | /* |
761 | * If the hunks were not edited, and overlap, we can simply | |
762 | * extend the line range. | |
763 | */ | |
764 | if (merged->start < hunk->start && merged->end > hunk->start) { | |
765 | merged->end = hunk->end; | |
766 | merged->colored_end = hunk->colored_end; | |
767 | delta = 0; | |
768 | } else { | |
769 | const char *plain = s->plain.buf; | |
770 | size_t overlapping_line_count = header->new_offset | |
771 | + header->new_count - merged->delta | |
772 | - next->new_offset; | |
773 | size_t overlap_end = hunk->start; | |
774 | size_t overlap_start = overlap_end; | |
775 | size_t overlap_next, len, j; | |
776 | ||
777 | /* | |
778 | * One of the hunks was edited: the modified hunk was | |
779 | * appended to the strbuf `s->plain`. | |
780 | * | |
781 | * Let's ensure that at least the last context line of | |
782 | * the first hunk overlaps with the corresponding line | |
783 | * of the second hunk, and then merge. | |
784 | */ | |
785 | for (j = 0; j < overlapping_line_count; j++) { | |
786 | overlap_next = find_next_line(&s->plain, | |
787 | overlap_end); | |
788 | ||
789 | if (overlap_next > hunk->end) | |
790 | BUG("failed to find %d context lines " | |
791 | "in:\n%.*s", | |
792 | (int)overlapping_line_count, | |
793 | (int)(hunk->end - hunk->start), | |
794 | plain + hunk->start); | |
795 | ||
796 | if (plain[overlap_end] != ' ') | |
797 | return error(_("expected context line " | |
798 | "#%d in\n%.*s"), | |
799 | (int)(j + 1), | |
800 | (int)(hunk->end | |
801 | - hunk->start), | |
802 | plain + hunk->start); | |
803 | ||
804 | overlap_start = overlap_end; | |
805 | overlap_end = overlap_next; | |
806 | } | |
807 | len = overlap_end - overlap_start; | |
808 | ||
809 | if (len > merged->end - merged->start || | |
810 | memcmp(plain + merged->end - len, | |
811 | plain + overlap_start, len)) | |
812 | return error(_("hunks do not overlap:\n%.*s\n" | |
813 | "\tdoes not end with:\n%.*s"), | |
814 | (int)(merged->end - merged->start), | |
815 | plain + merged->start, | |
816 | (int)len, plain + overlap_start); | |
817 | ||
818 | /* | |
819 | * Since the start-end ranges are not adjacent, we | |
820 | * cannot simply take the union of the ranges. To | |
821 | * address that, we temporarily append the union of the | |
822 | * lines to the `plain` strbuf. | |
823 | */ | |
824 | if (merged->end != s->plain.len) { | |
825 | size_t start = s->plain.len; | |
826 | ||
827 | strbuf_add(&s->plain, plain + merged->start, | |
828 | merged->end - merged->start); | |
829 | plain = s->plain.buf; | |
830 | merged->start = start; | |
831 | merged->end = s->plain.len; | |
832 | } | |
833 | ||
834 | strbuf_add(&s->plain, | |
835 | plain + overlap_end, | |
836 | hunk->end - overlap_end); | |
837 | merged->end = s->plain.len; | |
838 | merged->splittable_into += hunk->splittable_into; | |
839 | delta = merged->delta; | |
840 | merged->delta += hunk->delta; | |
841 | } | |
11f2c0da JS |
842 | |
843 | header->old_count = next->old_offset + next->old_count | |
844 | - header->old_offset; | |
bcdd297b JS |
845 | header->new_count = next->new_offset + delta |
846 | + next->new_count - header->new_offset; | |
11f2c0da JS |
847 | } |
848 | ||
849 | if (i == *hunk_index) | |
850 | return 0; | |
851 | ||
852 | *hunk_index = i; | |
853 | return 1; | |
854 | } | |
855 | ||
80399aec | 856 | static void reassemble_patch(struct add_p_state *s, |
bcdd297b JS |
857 | struct file_diff *file_diff, int use_all, |
858 | struct strbuf *out) | |
f6aa7ecc JS |
859 | { |
860 | struct hunk *hunk; | |
bcdd297b | 861 | size_t save_len = s->plain.len, i; |
25ea47af | 862 | ssize_t delta = 0; |
f6aa7ecc | 863 | |
5906d5de | 864 | render_diff_header(s, file_diff, 0, out); |
f6aa7ecc | 865 | |
5906d5de | 866 | for (i = file_diff->mode_change; i < file_diff->hunk_nr; i++) { |
11f2c0da JS |
867 | struct hunk merged = { 0 }; |
868 | ||
80399aec | 869 | hunk = file_diff->hunk + i; |
bcdd297b | 870 | if (!use_all && hunk->use != USE_HUNK) |
25ea47af JS |
871 | delta += hunk->header.old_count |
872 | - hunk->header.new_count; | |
11f2c0da JS |
873 | else { |
874 | /* merge overlapping hunks into a temporary hunk */ | |
bcdd297b | 875 | if (merge_hunks(s, file_diff, &i, use_all, &merged)) |
11f2c0da JS |
876 | hunk = &merged; |
877 | ||
25ea47af | 878 | render_hunk(s, hunk, delta, 0, out); |
bcdd297b JS |
879 | |
880 | /* | |
881 | * In case `merge_hunks()` used `plain` as a scratch | |
882 | * pad (this happens when an edited hunk had to be | |
883 | * coalesced with another hunk). | |
884 | */ | |
885 | strbuf_setlen(&s->plain, save_len); | |
886 | ||
887 | delta += hunk->delta; | |
11f2c0da | 888 | } |
f6aa7ecc JS |
889 | } |
890 | } | |
891 | ||
510aeca1 JS |
892 | static int split_hunk(struct add_p_state *s, struct file_diff *file_diff, |
893 | size_t hunk_index) | |
894 | { | |
895 | int colored = !!s->colored.len, first = 1; | |
896 | struct hunk *hunk = file_diff->hunk + hunk_index; | |
897 | size_t splittable_into; | |
898 | size_t end, colored_end, current, colored_current = 0, context_line_count; | |
899 | struct hunk_header remaining, *header; | |
900 | char marker, ch; | |
901 | ||
902 | if (hunk_index >= file_diff->hunk_nr) | |
903 | BUG("invalid hunk index: %d (must be >= 0 and < %d)", | |
904 | (int)hunk_index, (int)file_diff->hunk_nr); | |
905 | ||
906 | if (hunk->splittable_into < 2) | |
907 | return 0; | |
908 | splittable_into = hunk->splittable_into; | |
909 | ||
910 | end = hunk->end; | |
911 | colored_end = hunk->colored_end; | |
912 | ||
913 | remaining = hunk->header; | |
914 | ||
915 | file_diff->hunk_nr += splittable_into - 1; | |
916 | ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr, file_diff->hunk_alloc); | |
917 | if (hunk_index + splittable_into < file_diff->hunk_nr) | |
918 | memmove(file_diff->hunk + hunk_index + splittable_into, | |
919 | file_diff->hunk + hunk_index + 1, | |
920 | (file_diff->hunk_nr - hunk_index - splittable_into) | |
921 | * sizeof(*hunk)); | |
922 | hunk = file_diff->hunk + hunk_index; | |
923 | hunk->splittable_into = 1; | |
924 | memset(hunk + 1, 0, (splittable_into - 1) * sizeof(*hunk)); | |
925 | ||
926 | header = &hunk->header; | |
927 | header->old_count = header->new_count = 0; | |
928 | ||
929 | current = hunk->start; | |
930 | if (colored) | |
931 | colored_current = hunk->colored_start; | |
932 | marker = '\0'; | |
933 | context_line_count = 0; | |
934 | ||
935 | while (splittable_into > 1) { | |
936 | ch = s->plain.buf[current]; | |
937 | ||
938 | if (!ch) | |
939 | BUG("buffer overrun while splitting hunks"); | |
940 | ||
941 | /* | |
942 | * Is this the first context line after a chain of +/- lines? | |
943 | * Then record the start of the next split hunk. | |
944 | */ | |
945 | if ((marker == '-' || marker == '+') && ch == ' ') { | |
946 | first = 0; | |
947 | hunk[1].start = current; | |
948 | if (colored) | |
949 | hunk[1].colored_start = colored_current; | |
950 | context_line_count = 0; | |
951 | } | |
952 | ||
953 | /* | |
954 | * Was the previous line a +/- one? Alternatively, is this the | |
955 | * first line (and not a +/- one)? | |
956 | * | |
957 | * Then just increment the appropriate counter and continue | |
958 | * with the next line. | |
959 | */ | |
960 | if (marker != ' ' || (ch != '-' && ch != '+')) { | |
961 | next_hunk_line: | |
962 | /* Comment lines are attached to the previous line */ | |
963 | if (ch == '\\') | |
964 | ch = marker ? marker : ' '; | |
965 | ||
966 | /* current hunk not done yet */ | |
967 | if (ch == ' ') | |
968 | context_line_count++; | |
969 | else if (ch == '-') | |
970 | header->old_count++; | |
971 | else if (ch == '+') | |
972 | header->new_count++; | |
973 | else | |
974 | BUG("unhandled diff marker: '%c'", ch); | |
975 | marker = ch; | |
976 | current = find_next_line(&s->plain, current); | |
977 | if (colored) | |
978 | colored_current = | |
979 | find_next_line(&s->colored, | |
980 | colored_current); | |
981 | continue; | |
982 | } | |
983 | ||
984 | /* | |
985 | * We got us the start of a new hunk! | |
986 | * | |
987 | * This is a context line, so it is shared with the previous | |
988 | * hunk, if any. | |
989 | */ | |
990 | ||
991 | if (first) { | |
992 | if (header->old_count || header->new_count) | |
993 | BUG("counts are off: %d/%d", | |
994 | (int)header->old_count, | |
995 | (int)header->new_count); | |
996 | ||
997 | header->old_count = context_line_count; | |
998 | header->new_count = context_line_count; | |
999 | context_line_count = 0; | |
1000 | first = 0; | |
1001 | goto next_hunk_line; | |
1002 | } | |
1003 | ||
1004 | remaining.old_offset += header->old_count; | |
1005 | remaining.old_count -= header->old_count; | |
1006 | remaining.new_offset += header->new_count; | |
1007 | remaining.new_count -= header->new_count; | |
1008 | ||
1009 | /* initialize next hunk header's offsets */ | |
1010 | hunk[1].header.old_offset = | |
1011 | header->old_offset + header->old_count; | |
1012 | hunk[1].header.new_offset = | |
1013 | header->new_offset + header->new_count; | |
1014 | ||
1015 | /* add one split hunk */ | |
1016 | header->old_count += context_line_count; | |
1017 | header->new_count += context_line_count; | |
1018 | ||
1019 | hunk->end = current; | |
1020 | if (colored) | |
1021 | hunk->colored_end = colored_current; | |
1022 | ||
1023 | hunk++; | |
1024 | hunk->splittable_into = 1; | |
1025 | hunk->use = hunk[-1].use; | |
1026 | header = &hunk->header; | |
1027 | ||
1028 | header->old_count = header->new_count = context_line_count; | |
1029 | context_line_count = 0; | |
1030 | ||
1031 | splittable_into--; | |
1032 | marker = ch; | |
1033 | } | |
1034 | ||
1035 | /* last hunk simply gets the rest */ | |
1036 | if (header->old_offset != remaining.old_offset) | |
1037 | BUG("miscounted old_offset: %lu != %lu", | |
1038 | header->old_offset, remaining.old_offset); | |
1039 | if (header->new_offset != remaining.new_offset) | |
1040 | BUG("miscounted new_offset: %lu != %lu", | |
1041 | header->new_offset, remaining.new_offset); | |
1042 | header->old_count = remaining.old_count; | |
1043 | header->new_count = remaining.new_count; | |
1044 | hunk->end = end; | |
1045 | if (colored) | |
1046 | hunk->colored_end = colored_end; | |
1047 | ||
1048 | return 0; | |
1049 | } | |
1050 | ||
bcdd297b JS |
1051 | static void recolor_hunk(struct add_p_state *s, struct hunk *hunk) |
1052 | { | |
1053 | const char *plain = s->plain.buf; | |
1054 | size_t current, eol, next; | |
1055 | ||
1056 | if (!s->colored.len) | |
1057 | return; | |
1058 | ||
1059 | hunk->colored_start = s->colored.len; | |
1060 | for (current = hunk->start; current < hunk->end; ) { | |
1061 | for (eol = current; eol < hunk->end; eol++) | |
1062 | if (plain[eol] == '\n') | |
1063 | break; | |
1064 | next = eol + (eol < hunk->end); | |
1065 | if (eol > current && plain[eol - 1] == '\r') | |
1066 | eol--; | |
1067 | ||
1068 | strbuf_addstr(&s->colored, | |
1069 | plain[current] == '-' ? | |
1070 | s->s.file_old_color : | |
1071 | plain[current] == '+' ? | |
1072 | s->s.file_new_color : | |
1073 | s->s.context_color); | |
1074 | strbuf_add(&s->colored, plain + current, eol - current); | |
6f1a5caa | 1075 | strbuf_addstr(&s->colored, s->s.reset_color); |
bcdd297b JS |
1076 | if (next > eol) |
1077 | strbuf_add(&s->colored, plain + eol, next - eol); | |
1078 | current = next; | |
1079 | } | |
1080 | hunk->colored_end = s->colored.len; | |
1081 | } | |
1082 | ||
1083 | static int edit_hunk_manually(struct add_p_state *s, struct hunk *hunk) | |
1084 | { | |
1085 | size_t i; | |
1086 | ||
1087 | strbuf_reset(&s->buf); | |
1088 | strbuf_commented_addf(&s->buf, _("Manual hunk edit mode -- see bottom for " | |
1089 | "a quick guide.\n")); | |
1090 | render_hunk(s, hunk, 0, 0, &s->buf); | |
1091 | strbuf_commented_addf(&s->buf, | |
1092 | _("---\n" | |
1093 | "To remove '%c' lines, make them ' ' lines " | |
1094 | "(context).\n" | |
1095 | "To remove '%c' lines, delete them.\n" | |
1096 | "Lines starting with %c will be removed.\n"), | |
d2a233cb JS |
1097 | s->mode->is_reverse ? '+' : '-', |
1098 | s->mode->is_reverse ? '-' : '+', | |
1099 | comment_line_char); | |
1100 | strbuf_commented_addf(&s->buf, "%s", _(s->mode->edit_hunk_hint)); | |
bcdd297b JS |
1101 | /* |
1102 | * TRANSLATORS: 'it' refers to the patch mentioned in the previous | |
1103 | * messages. | |
1104 | */ | |
1105 | strbuf_commented_addf(&s->buf, | |
1106 | _("If it does not apply cleanly, you will be " | |
1107 | "given an opportunity to\n" | |
1108 | "edit again. If all lines of the hunk are " | |
1109 | "removed, then the edit is\n" | |
1110 | "aborted and the hunk is left unchanged.\n")); | |
1111 | ||
1112 | if (strbuf_edit_interactively(&s->buf, "addp-hunk-edit.diff", NULL) < 0) | |
1113 | return -1; | |
1114 | ||
1115 | /* strip out commented lines */ | |
1116 | hunk->start = s->plain.len; | |
1117 | for (i = 0; i < s->buf.len; ) { | |
1118 | size_t next = find_next_line(&s->buf, i); | |
1119 | ||
1120 | if (s->buf.buf[i] != comment_line_char) | |
1121 | strbuf_add(&s->plain, s->buf.buf + i, next - i); | |
1122 | i = next; | |
1123 | } | |
1124 | ||
1125 | hunk->end = s->plain.len; | |
1126 | if (hunk->end == hunk->start) | |
1127 | /* The user aborted editing by deleting everything */ | |
1128 | return 0; | |
1129 | ||
1130 | recolor_hunk(s, hunk); | |
1131 | ||
1132 | /* | |
1133 | * If the hunk header is intact, parse it, otherwise simply use the | |
1134 | * hunk header prior to editing (which will adjust `hunk->start` to | |
1135 | * skip the hunk header). | |
1136 | */ | |
1137 | if (s->plain.buf[hunk->start] == '@' && | |
1138 | parse_hunk_header(s, hunk) < 0) | |
1139 | return error(_("could not parse hunk header")); | |
1140 | ||
1141 | return 1; | |
1142 | } | |
1143 | ||
1144 | static ssize_t recount_edited_hunk(struct add_p_state *s, struct hunk *hunk, | |
1145 | size_t orig_old_count, size_t orig_new_count) | |
1146 | { | |
1147 | struct hunk_header *header = &hunk->header; | |
1148 | size_t i; | |
1149 | ||
1150 | header->old_count = header->new_count = 0; | |
1151 | for (i = hunk->start; i < hunk->end; ) { | |
1152 | switch (s->plain.buf[i]) { | |
1153 | case '-': | |
1154 | header->old_count++; | |
1155 | break; | |
1156 | case '+': | |
1157 | header->new_count++; | |
1158 | break; | |
1159 | case ' ': case '\r': case '\n': | |
1160 | header->old_count++; | |
1161 | header->new_count++; | |
1162 | break; | |
1163 | } | |
1164 | ||
1165 | i = find_next_line(&s->plain, i); | |
1166 | } | |
1167 | ||
1168 | return orig_old_count - orig_new_count | |
1169 | - header->old_count + header->new_count; | |
1170 | } | |
1171 | ||
1172 | static int run_apply_check(struct add_p_state *s, | |
1173 | struct file_diff *file_diff) | |
1174 | { | |
1175 | struct child_process cp = CHILD_PROCESS_INIT; | |
1176 | ||
1177 | strbuf_reset(&s->buf); | |
1178 | reassemble_patch(s, file_diff, 1, &s->buf); | |
1179 | ||
1180 | setup_child_process(s, &cp, | |
d2a233cb | 1181 | "apply", "--check", NULL); |
ef8d7ac4 | 1182 | strvec_pushv(&cp.args, s->mode->apply_check_args); |
bcdd297b JS |
1183 | if (pipe_command(&cp, s->buf.buf, s->buf.len, NULL, 0, NULL, 0)) |
1184 | return error(_("'git apply --cached' failed")); | |
1185 | ||
1186 | return 0; | |
1187 | } | |
1188 | ||
04f816b1 JS |
1189 | static int read_single_character(struct add_p_state *s) |
1190 | { | |
1191 | if (s->s.use_single_key) { | |
1192 | int res = read_key_without_echo(&s->answer); | |
1193 | printf("%s\n", res == EOF ? "" : s->answer.buf); | |
1194 | return res; | |
1195 | } | |
1196 | ||
08d383f2 | 1197 | if (git_read_line_interactively(&s->answer) == EOF) |
04f816b1 | 1198 | return EOF; |
04f816b1 JS |
1199 | return 0; |
1200 | } | |
1201 | ||
bcdd297b JS |
1202 | static int prompt_yesno(struct add_p_state *s, const char *prompt) |
1203 | { | |
1204 | for (;;) { | |
1205 | color_fprintf(stdout, s->s.prompt_color, "%s", _(prompt)); | |
1206 | fflush(stdout); | |
04f816b1 | 1207 | if (read_single_character(s) == EOF) |
bcdd297b | 1208 | return -1; |
bcdd297b JS |
1209 | switch (tolower(s->answer.buf[0])) { |
1210 | case 'n': return 0; | |
1211 | case 'y': return 1; | |
1212 | } | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | static int edit_hunk_loop(struct add_p_state *s, | |
1217 | struct file_diff *file_diff, struct hunk *hunk) | |
1218 | { | |
1219 | size_t plain_len = s->plain.len, colored_len = s->colored.len; | |
1220 | struct hunk backup; | |
1221 | ||
1222 | backup = *hunk; | |
1223 | ||
1224 | for (;;) { | |
1225 | int res = edit_hunk_manually(s, hunk); | |
1226 | if (res == 0) { | |
84544f2e | 1227 | /* abandoned */ |
bcdd297b JS |
1228 | *hunk = backup; |
1229 | return -1; | |
1230 | } | |
1231 | ||
1232 | if (res > 0) { | |
1233 | hunk->delta += | |
1234 | recount_edited_hunk(s, hunk, | |
1235 | backup.header.old_count, | |
1236 | backup.header.new_count); | |
1237 | if (!run_apply_check(s, file_diff)) | |
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | /* Drop edits (they were appended to s->plain) */ | |
1242 | strbuf_setlen(&s->plain, plain_len); | |
1243 | strbuf_setlen(&s->colored, colored_len); | |
1244 | *hunk = backup; | |
1245 | ||
1246 | /* | |
1247 | * TRANSLATORS: do not translate [y/n] | |
1248 | * The program will only accept that input at this point. | |
1249 | * Consider translating (saying "no" discards!) as | |
1250 | * (saying "n" for "no" discards!) if the translation | |
1251 | * of the word "no" does not start with n. | |
1252 | */ | |
1253 | res = prompt_yesno(s, _("Your edited hunk does not apply. " | |
1254 | "Edit again (saying \"no\" discards!) " | |
1255 | "[y/n]? ")); | |
1256 | if (res < 1) | |
1257 | return -1; | |
1258 | } | |
1259 | } | |
1260 | ||
52628f94 JS |
1261 | static int apply_for_checkout(struct add_p_state *s, struct strbuf *diff, |
1262 | int is_reverse) | |
1263 | { | |
1264 | const char *reverse = is_reverse ? "-R" : NULL; | |
1265 | struct child_process check_index = CHILD_PROCESS_INIT; | |
1266 | struct child_process check_worktree = CHILD_PROCESS_INIT; | |
1267 | struct child_process apply_index = CHILD_PROCESS_INIT; | |
1268 | struct child_process apply_worktree = CHILD_PROCESS_INIT; | |
1269 | int applies_index, applies_worktree; | |
1270 | ||
1271 | setup_child_process(s, &check_index, | |
1272 | "apply", "--cached", "--check", reverse, NULL); | |
1273 | applies_index = !pipe_command(&check_index, diff->buf, diff->len, | |
1274 | NULL, 0, NULL, 0); | |
1275 | ||
1276 | setup_child_process(s, &check_worktree, | |
1277 | "apply", "--check", reverse, NULL); | |
1278 | applies_worktree = !pipe_command(&check_worktree, diff->buf, diff->len, | |
1279 | NULL, 0, NULL, 0); | |
1280 | ||
1281 | if (applies_worktree && applies_index) { | |
1282 | setup_child_process(s, &apply_index, | |
1283 | "apply", "--cached", reverse, NULL); | |
1284 | pipe_command(&apply_index, diff->buf, diff->len, | |
1285 | NULL, 0, NULL, 0); | |
1286 | ||
1287 | setup_child_process(s, &apply_worktree, | |
1288 | "apply", reverse, NULL); | |
1289 | pipe_command(&apply_worktree, diff->buf, diff->len, | |
1290 | NULL, 0, NULL, 0); | |
1291 | ||
1292 | return 1; | |
1293 | } | |
1294 | ||
1295 | if (!applies_index) { | |
1296 | err(s, _("The selected hunks do not apply to the index!")); | |
1297 | if (prompt_yesno(s, _("Apply them to the worktree " | |
1298 | "anyway? ")) > 0) { | |
1299 | setup_child_process(s, &apply_worktree, | |
1300 | "apply", reverse, NULL); | |
1301 | return pipe_command(&apply_worktree, diff->buf, | |
1302 | diff->len, NULL, 0, NULL, 0); | |
1303 | } | |
1304 | err(s, _("Nothing was applied.\n")); | |
1305 | } else | |
1306 | /* As a last resort, show the diff to the user */ | |
1307 | fwrite(diff->buf, diff->len, 1, stderr); | |
1308 | ||
1309 | return 0; | |
1310 | } | |
1311 | ||
9254bdfb JS |
1312 | #define SUMMARY_HEADER_WIDTH 20 |
1313 | #define SUMMARY_LINE_WIDTH 80 | |
1314 | static void summarize_hunk(struct add_p_state *s, struct hunk *hunk, | |
1315 | struct strbuf *out) | |
1316 | { | |
1317 | struct hunk_header *header = &hunk->header; | |
1318 | struct strbuf *plain = &s->plain; | |
1319 | size_t len = out->len, i; | |
1320 | ||
1321 | strbuf_addf(out, " -%lu,%lu +%lu,%lu ", | |
1322 | header->old_offset, header->old_count, | |
1323 | header->new_offset, header->new_count); | |
1324 | if (out->len - len < SUMMARY_HEADER_WIDTH) | |
1325 | strbuf_addchars(out, ' ', | |
1326 | SUMMARY_HEADER_WIDTH + len - out->len); | |
1327 | for (i = hunk->start; i < hunk->end; i = find_next_line(plain, i)) | |
1328 | if (plain->buf[i] != ' ') | |
1329 | break; | |
1330 | if (i < hunk->end) | |
1331 | strbuf_add(out, plain->buf + i, find_next_line(plain, i) - i); | |
1332 | if (out->len - len > SUMMARY_LINE_WIDTH) | |
1333 | strbuf_setlen(out, len + SUMMARY_LINE_WIDTH); | |
1334 | strbuf_complete_line(out); | |
1335 | } | |
1336 | ||
1337 | #define DISPLAY_HUNKS_LINES 20 | |
1338 | static size_t display_hunks(struct add_p_state *s, | |
1339 | struct file_diff *file_diff, size_t start_index) | |
1340 | { | |
1341 | size_t end_index = start_index + DISPLAY_HUNKS_LINES; | |
1342 | ||
1343 | if (end_index > file_diff->hunk_nr) | |
1344 | end_index = file_diff->hunk_nr; | |
1345 | ||
1346 | while (start_index < end_index) { | |
1347 | struct hunk *hunk = file_diff->hunk + start_index++; | |
1348 | ||
1349 | strbuf_reset(&s->buf); | |
1350 | strbuf_addf(&s->buf, "%c%2d: ", hunk->use == USE_HUNK ? '+' | |
1351 | : hunk->use == SKIP_HUNK ? '-' : ' ', | |
1352 | (int)start_index); | |
1353 | summarize_hunk(s, hunk, &s->buf); | |
1354 | fputs(s->buf.buf, stdout); | |
1355 | } | |
1356 | ||
1357 | return end_index; | |
1358 | } | |
1359 | ||
54d9d9b2 JS |
1360 | static const char help_patch_remainder[] = |
1361 | N_("j - leave this hunk undecided, see next undecided hunk\n" | |
f6aa7ecc JS |
1362 | "J - leave this hunk undecided, see next hunk\n" |
1363 | "k - leave this hunk undecided, see previous undecided hunk\n" | |
1364 | "K - leave this hunk undecided, see previous hunk\n" | |
9254bdfb | 1365 | "g - select a hunk to go to\n" |
d6cf8733 | 1366 | "/ - search for a hunk matching the given regex\n" |
510aeca1 | 1367 | "s - split the current hunk into smaller hunks\n" |
bcdd297b | 1368 | "e - manually edit the current hunk\n" |
f6aa7ecc JS |
1369 | "? - print help\n"); |
1370 | ||
80399aec JS |
1371 | static int patch_update_file(struct add_p_state *s, |
1372 | struct file_diff *file_diff) | |
f6aa7ecc JS |
1373 | { |
1374 | size_t hunk_index = 0; | |
1375 | ssize_t i, undecided_previous, undecided_next; | |
1376 | struct hunk *hunk; | |
1377 | char ch; | |
1378 | struct child_process cp = CHILD_PROCESS_INIT; | |
ade246ef | 1379 | int colored = !!s->colored.len, quit = 0; |
0ecd9d27 | 1380 | enum prompt_mode_type prompt_mode_type; |
ce910287 PW |
1381 | enum { |
1382 | ALLOW_GOTO_PREVIOUS_HUNK = 1 << 0, | |
1383 | ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK = 1 << 1, | |
1384 | ALLOW_GOTO_NEXT_HUNK = 1 << 2, | |
1385 | ALLOW_GOTO_NEXT_UNDECIDED_HUNK = 1 << 3, | |
1386 | ALLOW_SEARCH_AND_GOTO = 1 << 4, | |
1387 | ALLOW_SPLIT = 1 << 5, | |
1388 | ALLOW_EDIT = 1 << 6 | |
1389 | } permitted = 0; | |
f6aa7ecc | 1390 | |
75a009dc PW |
1391 | /* Empty added files have no hunks */ |
1392 | if (!file_diff->hunk_nr && !file_diff->added) | |
f6aa7ecc JS |
1393 | return 0; |
1394 | ||
1395 | strbuf_reset(&s->buf); | |
5906d5de | 1396 | render_diff_header(s, file_diff, colored, &s->buf); |
f6aa7ecc JS |
1397 | fputs(s->buf.buf, stdout); |
1398 | for (;;) { | |
80399aec | 1399 | if (hunk_index >= file_diff->hunk_nr) |
f6aa7ecc | 1400 | hunk_index = 0; |
75a009dc PW |
1401 | hunk = file_diff->hunk_nr |
1402 | ? file_diff->hunk + hunk_index | |
1403 | : &file_diff->head; | |
f6aa7ecc | 1404 | undecided_previous = -1; |
f6aa7ecc | 1405 | undecided_next = -1; |
75a009dc PW |
1406 | |
1407 | if (file_diff->hunk_nr) { | |
1408 | for (i = hunk_index - 1; i >= 0; i--) | |
1409 | if (file_diff->hunk[i].use == UNDECIDED_HUNK) { | |
1410 | undecided_previous = i; | |
1411 | break; | |
1412 | } | |
1413 | ||
1414 | for (i = hunk_index + 1; i < file_diff->hunk_nr; i++) | |
1415 | if (file_diff->hunk[i].use == UNDECIDED_HUNK) { | |
1416 | undecided_next = i; | |
1417 | break; | |
1418 | } | |
1419 | } | |
f6aa7ecc JS |
1420 | |
1421 | /* Everything decided? */ | |
1422 | if (undecided_previous < 0 && undecided_next < 0 && | |
1423 | hunk->use != UNDECIDED_HUNK) | |
1424 | break; | |
1425 | ||
1426 | strbuf_reset(&s->buf); | |
75a009dc PW |
1427 | if (file_diff->hunk_nr) { |
1428 | render_hunk(s, hunk, 0, colored, &s->buf); | |
1429 | fputs(s->buf.buf, stdout); | |
f6aa7ecc | 1430 | |
75a009dc PW |
1431 | strbuf_reset(&s->buf); |
1432 | if (undecided_previous >= 0) { | |
1433 | permitted |= ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK; | |
1434 | strbuf_addstr(&s->buf, ",k"); | |
1435 | } | |
1436 | if (hunk_index) { | |
1437 | permitted |= ALLOW_GOTO_PREVIOUS_HUNK; | |
1438 | strbuf_addstr(&s->buf, ",K"); | |
1439 | } | |
1440 | if (undecided_next >= 0) { | |
1441 | permitted |= ALLOW_GOTO_NEXT_UNDECIDED_HUNK; | |
1442 | strbuf_addstr(&s->buf, ",j"); | |
1443 | } | |
1444 | if (hunk_index + 1 < file_diff->hunk_nr) { | |
1445 | permitted |= ALLOW_GOTO_NEXT_HUNK; | |
1446 | strbuf_addstr(&s->buf, ",J"); | |
1447 | } | |
1448 | if (file_diff->hunk_nr > 1) { | |
1449 | permitted |= ALLOW_SEARCH_AND_GOTO; | |
1450 | strbuf_addstr(&s->buf, ",g,/"); | |
1451 | } | |
1452 | if (hunk->splittable_into > 1) { | |
1453 | permitted |= ALLOW_SPLIT; | |
1454 | strbuf_addstr(&s->buf, ",s"); | |
1455 | } | |
1456 | if (hunk_index + 1 > file_diff->mode_change && | |
1457 | !file_diff->deleted) { | |
1458 | permitted |= ALLOW_EDIT; | |
1459 | strbuf_addstr(&s->buf, ",e"); | |
1460 | } | |
ce910287 | 1461 | } |
0ecd9d27 JS |
1462 | if (file_diff->deleted) |
1463 | prompt_mode_type = PROMPT_DELETION; | |
2c8bd847 JS |
1464 | else if (file_diff->added) |
1465 | prompt_mode_type = PROMPT_ADDITION; | |
0ecd9d27 JS |
1466 | else if (file_diff->mode_change && !hunk_index) |
1467 | prompt_mode_type = PROMPT_MODE_CHANGE; | |
1468 | else | |
1469 | prompt_mode_type = PROMPT_HUNK; | |
1470 | ||
6681e360 | 1471 | printf("%s(%"PRIuMAX"/%"PRIuMAX") ", s->s.prompt_color, |
80399aec | 1472 | (uintmax_t)hunk_index + 1, |
75a009dc PW |
1473 | (uintmax_t)(file_diff->hunk_nr |
1474 | ? file_diff->hunk_nr | |
1475 | : 1)); | |
6681e360 JS |
1476 | printf(_(s->mode->prompt_mode[prompt_mode_type]), |
1477 | s->buf.buf); | |
1478 | if (*s->s.reset_color) | |
1479 | fputs(s->s.reset_color, stdout); | |
f6aa7ecc | 1480 | fflush(stdout); |
04f816b1 | 1481 | if (read_single_character(s) == EOF) |
f6aa7ecc | 1482 | break; |
f6aa7ecc JS |
1483 | |
1484 | if (!s->answer.len) | |
1485 | continue; | |
1486 | ch = tolower(s->answer.buf[0]); | |
1487 | if (ch == 'y') { | |
1488 | hunk->use = USE_HUNK; | |
1489 | soft_increment: | |
1490 | hunk_index = undecided_next < 0 ? | |
80399aec | 1491 | file_diff->hunk_nr : undecided_next; |
f6aa7ecc JS |
1492 | } else if (ch == 'n') { |
1493 | hunk->use = SKIP_HUNK; | |
1494 | goto soft_increment; | |
1495 | } else if (ch == 'a') { | |
75a009dc PW |
1496 | if (file_diff->hunk_nr) { |
1497 | for (; hunk_index < file_diff->hunk_nr; hunk_index++) { | |
1498 | hunk = file_diff->hunk + hunk_index; | |
1499 | if (hunk->use == UNDECIDED_HUNK) | |
1500 | hunk->use = USE_HUNK; | |
1501 | } | |
1502 | } else if (hunk->use == UNDECIDED_HUNK) { | |
1503 | hunk->use = USE_HUNK; | |
f6aa7ecc | 1504 | } |
ade246ef | 1505 | } else if (ch == 'd' || ch == 'q') { |
75a009dc PW |
1506 | if (file_diff->hunk_nr) { |
1507 | for (; hunk_index < file_diff->hunk_nr; hunk_index++) { | |
1508 | hunk = file_diff->hunk + hunk_index; | |
1509 | if (hunk->use == UNDECIDED_HUNK) | |
1510 | hunk->use = SKIP_HUNK; | |
1511 | } | |
1512 | } else if (hunk->use == UNDECIDED_HUNK) { | |
1513 | hunk->use = SKIP_HUNK; | |
f6aa7ecc | 1514 | } |
ade246ef JS |
1515 | if (ch == 'q') { |
1516 | quit = 1; | |
1517 | break; | |
1518 | } | |
7584dd3c | 1519 | } else if (s->answer.buf[0] == 'K') { |
ce910287 | 1520 | if (permitted & ALLOW_GOTO_PREVIOUS_HUNK) |
7584dd3c JS |
1521 | hunk_index--; |
1522 | else | |
1523 | err(s, _("No previous hunk")); | |
1524 | } else if (s->answer.buf[0] == 'J') { | |
ce910287 | 1525 | if (permitted & ALLOW_GOTO_NEXT_HUNK) |
7584dd3c JS |
1526 | hunk_index++; |
1527 | else | |
1528 | err(s, _("No next hunk")); | |
1529 | } else if (s->answer.buf[0] == 'k') { | |
ce910287 | 1530 | if (permitted & ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK) |
7584dd3c JS |
1531 | hunk_index = undecided_previous; |
1532 | else | |
1533 | err(s, _("No previous hunk")); | |
1534 | } else if (s->answer.buf[0] == 'j') { | |
ce910287 | 1535 | if (permitted & ALLOW_GOTO_NEXT_UNDECIDED_HUNK) |
7584dd3c JS |
1536 | hunk_index = undecided_next; |
1537 | else | |
1538 | err(s, _("No next hunk")); | |
9254bdfb JS |
1539 | } else if (s->answer.buf[0] == 'g') { |
1540 | char *pend; | |
1541 | unsigned long response; | |
1542 | ||
ce910287 | 1543 | if (!(permitted & ALLOW_SEARCH_AND_GOTO)) { |
9254bdfb JS |
1544 | err(s, _("No other hunks to goto")); |
1545 | continue; | |
1546 | } | |
1547 | strbuf_remove(&s->answer, 0, 1); | |
1548 | strbuf_trim(&s->answer); | |
1549 | i = hunk_index - DISPLAY_HUNKS_LINES / 2; | |
1550 | if (i < file_diff->mode_change) | |
1551 | i = file_diff->mode_change; | |
1552 | while (s->answer.len == 0) { | |
1553 | i = display_hunks(s, file_diff, i); | |
1554 | printf("%s", i < file_diff->hunk_nr ? | |
1555 | _("go to which hunk (<ret> to see " | |
1556 | "more)? ") : _("go to which hunk? ")); | |
1557 | fflush(stdout); | |
1558 | if (strbuf_getline(&s->answer, | |
1559 | stdin) == EOF) | |
1560 | break; | |
1561 | strbuf_trim_trailing_newline(&s->answer); | |
1562 | } | |
1563 | ||
1564 | strbuf_trim(&s->answer); | |
1565 | response = strtoul(s->answer.buf, &pend, 10); | |
1566 | if (*pend || pend == s->answer.buf) | |
1567 | err(s, _("Invalid number: '%s'"), | |
1568 | s->answer.buf); | |
1569 | else if (0 < response && response <= file_diff->hunk_nr) | |
1570 | hunk_index = response - 1; | |
1571 | else | |
1572 | err(s, Q_("Sorry, only %d hunk available.", | |
1573 | "Sorry, only %d hunks available.", | |
1574 | file_diff->hunk_nr), | |
1575 | (int)file_diff->hunk_nr); | |
d6cf8733 JS |
1576 | } else if (s->answer.buf[0] == '/') { |
1577 | regex_t regex; | |
1578 | int ret; | |
1579 | ||
ce910287 | 1580 | if (!(permitted & ALLOW_SEARCH_AND_GOTO)) { |
d6cf8733 JS |
1581 | err(s, _("No other hunks to search")); |
1582 | continue; | |
1583 | } | |
1584 | strbuf_remove(&s->answer, 0, 1); | |
1585 | strbuf_trim_trailing_newline(&s->answer); | |
1586 | if (s->answer.len == 0) { | |
1587 | printf("%s", _("search for regex? ")); | |
1588 | fflush(stdout); | |
1589 | if (strbuf_getline(&s->answer, | |
1590 | stdin) == EOF) | |
1591 | break; | |
1592 | strbuf_trim_trailing_newline(&s->answer); | |
1593 | if (s->answer.len == 0) | |
1594 | continue; | |
1595 | } | |
1596 | ret = regcomp(®ex, s->answer.buf, | |
1597 | REG_EXTENDED | REG_NOSUB | REG_NEWLINE); | |
1598 | if (ret) { | |
1599 | char errbuf[1024]; | |
1600 | ||
1601 | regerror(ret, ®ex, errbuf, sizeof(errbuf)); | |
1602 | err(s, _("Malformed search regexp %s: %s"), | |
1603 | s->answer.buf, errbuf); | |
1604 | continue; | |
1605 | } | |
1606 | i = hunk_index; | |
1607 | for (;;) { | |
1608 | /* render the hunk into a scratch buffer */ | |
1609 | render_hunk(s, file_diff->hunk + i, 0, 0, | |
1610 | &s->buf); | |
1611 | if (regexec(®ex, s->buf.buf, 0, NULL, 0) | |
1612 | != REG_NOMATCH) | |
1613 | break; | |
1614 | i++; | |
1615 | if (i == file_diff->hunk_nr) | |
1616 | i = 0; | |
1617 | if (i != hunk_index) | |
1618 | continue; | |
1619 | err(s, _("No hunk matches the given pattern")); | |
1620 | break; | |
1621 | } | |
1622 | hunk_index = i; | |
510aeca1 JS |
1623 | } else if (s->answer.buf[0] == 's') { |
1624 | size_t splittable_into = hunk->splittable_into; | |
ce910287 | 1625 | if (!(permitted & ALLOW_SPLIT)) |
510aeca1 JS |
1626 | err(s, _("Sorry, cannot split this hunk")); |
1627 | else if (!split_hunk(s, file_diff, | |
1628 | hunk - file_diff->hunk)) | |
1629 | color_fprintf_ln(stdout, s->s.header_color, | |
1630 | _("Split into %d hunks."), | |
1631 | (int)splittable_into); | |
bcdd297b | 1632 | } else if (s->answer.buf[0] == 'e') { |
ce910287 | 1633 | if (!(permitted & ALLOW_EDIT)) |
bcdd297b JS |
1634 | err(s, _("Sorry, cannot edit this hunk")); |
1635 | else if (edit_hunk_loop(s, file_diff, hunk) >= 0) { | |
1636 | hunk->use = USE_HUNK; | |
1637 | goto soft_increment; | |
1638 | } | |
54d9d9b2 JS |
1639 | } else { |
1640 | const char *p = _(help_patch_remainder), *eol = p; | |
1641 | ||
1642 | color_fprintf(stdout, s->s.help_color, "%s", | |
d2a233cb | 1643 | _(s->mode->help_patch_text)); |
54d9d9b2 JS |
1644 | |
1645 | /* | |
1646 | * Show only those lines of the remainder that are | |
1647 | * actually applicable with the current hunk. | |
1648 | */ | |
1649 | for (; *p; p = eol + (*eol == '\n')) { | |
1650 | eol = strchrnul(p, '\n'); | |
1651 | ||
1652 | /* | |
1653 | * `s->buf` still contains the part of the | |
1654 | * commands shown in the prompt that are not | |
1655 | * always available. | |
1656 | */ | |
1657 | if (*p != '?' && !strchr(s->buf.buf, *p)) | |
1658 | continue; | |
1659 | ||
1660 | color_fprintf_ln(stdout, s->s.help_color, | |
1661 | "%.*s", (int)(eol - p), p); | |
1662 | } | |
1663 | } | |
f6aa7ecc JS |
1664 | } |
1665 | ||
1666 | /* Any hunk to be used? */ | |
80399aec JS |
1667 | for (i = 0; i < file_diff->hunk_nr; i++) |
1668 | if (file_diff->hunk[i].use == USE_HUNK) | |
f6aa7ecc JS |
1669 | break; |
1670 | ||
75a009dc PW |
1671 | if (i < file_diff->hunk_nr || |
1672 | (!file_diff->hunk_nr && file_diff->head.use == USE_HUNK)) { | |
f6aa7ecc JS |
1673 | /* At least one hunk selected: apply */ |
1674 | strbuf_reset(&s->buf); | |
bcdd297b | 1675 | reassemble_patch(s, file_diff, 0, &s->buf); |
f6aa7ecc | 1676 | |
25ea47af | 1677 | discard_index(s->s.r->index); |
52628f94 JS |
1678 | if (s->mode->apply_for_checkout) |
1679 | apply_for_checkout(s, &s->buf, | |
1680 | s->mode->is_reverse); | |
1681 | else { | |
1682 | setup_child_process(s, &cp, "apply", NULL); | |
ef8d7ac4 | 1683 | strvec_pushv(&cp.args, s->mode->apply_args); |
52628f94 JS |
1684 | if (pipe_command(&cp, s->buf.buf, s->buf.len, |
1685 | NULL, 0, NULL, 0)) | |
1686 | error(_("'git apply' failed")); | |
1687 | } | |
dc626415 | 1688 | if (repo_read_index(s->s.r) >= 0) |
25ea47af | 1689 | repo_refresh_and_write_index(s->s.r, REFRESH_QUIET, 0, |
f6aa7ecc JS |
1690 | 1, NULL, NULL, NULL); |
1691 | } | |
1692 | ||
1693 | putchar('\n'); | |
ade246ef | 1694 | return quit; |
f6aa7ecc JS |
1695 | } |
1696 | ||
d2a233cb JS |
1697 | int run_add_p(struct repository *r, enum add_p_mode mode, |
1698 | const char *revision, const struct pathspec *ps) | |
f6aa7ecc | 1699 | { |
25ea47af JS |
1700 | struct add_p_state s = { |
1701 | { r }, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT | |
1702 | }; | |
2e408319 | 1703 | size_t i, binary_count = 0; |
25ea47af JS |
1704 | |
1705 | init_add_i_state(&s.s, r); | |
f6aa7ecc | 1706 | |
36bae1dc JS |
1707 | if (mode == ADD_P_STASH) |
1708 | s.mode = &patch_mode_stash; | |
1709 | else if (mode == ADD_P_RESET) { | |
f82a9e51 DL |
1710 | /* |
1711 | * NEEDSWORK: Instead of comparing to the literal "HEAD", | |
1712 | * compare the commit objects instead so that other ways of | |
1713 | * saying the same thing (such as "@") are also handled | |
1714 | * appropriately. | |
1715 | * | |
1716 | * This applies to the cases below too. | |
1717 | */ | |
36bae1dc JS |
1718 | if (!revision || !strcmp(revision, "HEAD")) |
1719 | s.mode = &patch_mode_reset_head; | |
1720 | else | |
1721 | s.mode = &patch_mode_reset_nothead; | |
52628f94 JS |
1722 | } else if (mode == ADD_P_CHECKOUT) { |
1723 | if (!revision) | |
1724 | s.mode = &patch_mode_checkout_index; | |
1725 | else if (!strcmp(revision, "HEAD")) | |
1726 | s.mode = &patch_mode_checkout_head; | |
1727 | else | |
1728 | s.mode = &patch_mode_checkout_nothead; | |
cee6cb73 JS |
1729 | } else if (mode == ADD_P_WORKTREE) { |
1730 | if (!revision) | |
1731 | s.mode = &patch_mode_checkout_index; | |
1732 | else if (!strcmp(revision, "HEAD")) | |
1733 | s.mode = &patch_mode_worktree_head; | |
1734 | else | |
1735 | s.mode = &patch_mode_worktree_nothead; | |
36bae1dc JS |
1736 | } else |
1737 | s.mode = &patch_mode_add; | |
d2a233cb JS |
1738 | s.revision = revision; |
1739 | ||
f6aa7ecc | 1740 | if (discard_index(r->index) < 0 || repo_read_index(r) < 0 || |
36bae1dc JS |
1741 | (!s.mode->index_only && |
1742 | repo_refresh_and_write_index(r, REFRESH_QUIET, 0, 1, | |
1743 | NULL, NULL, NULL) < 0) || | |
f6aa7ecc | 1744 | parse_diff(&s, ps) < 0) { |
324efcf6 | 1745 | add_p_state_clear(&s); |
f6aa7ecc JS |
1746 | return -1; |
1747 | } | |
1748 | ||
80399aec | 1749 | for (i = 0; i < s.file_diff_nr; i++) |
2e408319 JS |
1750 | if (s.file_diff[i].binary && !s.file_diff[i].hunk_nr) |
1751 | binary_count++; | |
1752 | else if (patch_update_file(&s, s.file_diff + i)) | |
80399aec | 1753 | break; |
f6aa7ecc | 1754 | |
2e408319 JS |
1755 | if (s.file_diff_nr == 0) |
1756 | fprintf(stderr, _("No changes.\n")); | |
1757 | else if (binary_count == s.file_diff_nr) | |
1758 | fprintf(stderr, _("Only binary files changed.\n")); | |
1759 | ||
324efcf6 | 1760 | add_p_state_clear(&s); |
f6aa7ecc JS |
1761 | return 0; |
1762 | } |