};
static const char *prompt_mode[] = {
- N_("Stage mode change [y,n,a,d%s,?]? "),
- N_("Stage deletion [y,n,a,d%s,?]? "),
- N_("Stage this hunk [y,n,a,d%s,?]? ")
+ N_("Stage mode change [y,n,a,q,d%s,?]? "),
+ N_("Stage deletion [y,n,a,q,d%s,?]? "),
+ N_("Stage this hunk [y,n,a,q,d%s,?]? ")
};
struct hunk_header {
struct hunk {
size_t start, end, colored_start, colored_end, splittable_into;
+ ssize_t delta;
enum { UNDECIDED_HUNK = 0, SKIP_HUNK, USE_HUNK } use;
struct hunk_header header;
};
struct hunk head;
struct hunk *hunk;
size_t hunk_nr, hunk_alloc;
- unsigned deleted:1, mode_change:1;
+ unsigned deleted:1, mode_change:1,binary:1;
} *file_diff;
size_t file_diff_nr;
};
BUG("'new mode' does not immediately follow "
"'old mode'?\n\n%.*s",
(int)(eol - plain->buf), plain->buf);
- }
+ } else if (hunk == &file_diff->head &&
+ starts_with(p, "Binary files "))
+ file_diff->binary = 1;
if (file_diff->deleted && file_diff->mode_change)
BUG("diff contains delete *and* a mode change?!?\n%.*s",
}
}
+/* Coalesce hunks again that were split */
+static int merge_hunks(struct add_p_state *s, struct file_diff *file_diff,
+ size_t *hunk_index, int use_all, struct hunk *merged)
+{
+ size_t i = *hunk_index, delta;
+ struct hunk *hunk = file_diff->hunk + i;
+ /* `header` corresponds to the merged hunk */
+ struct hunk_header *header = &merged->header, *next;
+
+ if (!use_all && hunk->use != USE_HUNK)
+ return 0;
+
+ *merged = *hunk;
+ /* We simply skip the colored part (if any) when merging hunks */
+ merged->colored_start = merged->colored_end = 0;
+
+ for (; i + 1 < file_diff->hunk_nr; i++) {
+ hunk++;
+ next = &hunk->header;
+
+ /*
+ * Stop merging hunks when:
+ *
+ * - the hunk is not selected for use, or
+ * - the hunk does not overlap with the already-merged hunk(s)
+ */
+ if ((!use_all && hunk->use != USE_HUNK) ||
+ header->new_offset >= next->new_offset + merged->delta ||
+ header->new_offset + header->new_count
+ < next->new_offset + merged->delta)
+ break;
+
+ /*
+ * If the hunks were not edited, and overlap, we can simply
+ * extend the line range.
+ */
+ if (merged->start < hunk->start && merged->end > hunk->start) {
+ merged->end = hunk->end;
+ merged->colored_end = hunk->colored_end;
+ delta = 0;
+ } else {
+ const char *plain = s->plain.buf;
+ size_t overlapping_line_count = header->new_offset
+ + header->new_count - merged->delta
+ - next->new_offset;
+ size_t overlap_end = hunk->start;
+ size_t overlap_start = overlap_end;
+ size_t overlap_next, len, j;
+
+ /*
+ * One of the hunks was edited: the modified hunk was
+ * appended to the strbuf `s->plain`.
+ *
+ * Let's ensure that at least the last context line of
+ * the first hunk overlaps with the corresponding line
+ * of the second hunk, and then merge.
+ */
+ for (j = 0; j < overlapping_line_count; j++) {
+ overlap_next = find_next_line(&s->plain,
+ overlap_end);
+
+ if (overlap_next > hunk->end)
+ BUG("failed to find %d context lines "
+ "in:\n%.*s",
+ (int)overlapping_line_count,
+ (int)(hunk->end - hunk->start),
+ plain + hunk->start);
+
+ if (plain[overlap_end] != ' ')
+ return error(_("expected context line "
+ "#%d in\n%.*s"),
+ (int)(j + 1),
+ (int)(hunk->end
+ - hunk->start),
+ plain + hunk->start);
+
+ overlap_start = overlap_end;
+ overlap_end = overlap_next;
+ }
+ len = overlap_end - overlap_start;
+
+ if (len > merged->end - merged->start ||
+ memcmp(plain + merged->end - len,
+ plain + overlap_start, len))
+ return error(_("hunks do not overlap:\n%.*s\n"
+ "\tdoes not end with:\n%.*s"),
+ (int)(merged->end - merged->start),
+ plain + merged->start,
+ (int)len, plain + overlap_start);
+
+ /*
+ * Since the start-end ranges are not adjacent, we
+ * cannot simply take the union of the ranges. To
+ * address that, we temporarily append the union of the
+ * lines to the `plain` strbuf.
+ */
+ if (merged->end != s->plain.len) {
+ size_t start = s->plain.len;
+
+ strbuf_add(&s->plain, plain + merged->start,
+ merged->end - merged->start);
+ plain = s->plain.buf;
+ merged->start = start;
+ merged->end = s->plain.len;
+ }
+
+ strbuf_add(&s->plain,
+ plain + overlap_end,
+ hunk->end - overlap_end);
+ merged->end = s->plain.len;
+ merged->splittable_into += hunk->splittable_into;
+ delta = merged->delta;
+ merged->delta += hunk->delta;
+ }
+
+ header->old_count = next->old_offset + next->old_count
+ - header->old_offset;
+ header->new_count = next->new_offset + delta
+ + next->new_count - header->new_offset;
+ }
+
+ if (i == *hunk_index)
+ return 0;
+
+ *hunk_index = i;
+ return 1;
+}
+
static void reassemble_patch(struct add_p_state *s,
- struct file_diff *file_diff, struct strbuf *out)
+ struct file_diff *file_diff, int use_all,
+ struct strbuf *out)
{
struct hunk *hunk;
- size_t i;
+ size_t save_len = s->plain.len, i;
ssize_t delta = 0;
render_diff_header(s, file_diff, 0, out);
for (i = file_diff->mode_change; i < file_diff->hunk_nr; i++) {
+ struct hunk merged = { 0 };
+
hunk = file_diff->hunk + i;
- if (hunk->use != USE_HUNK)
+ if (!use_all && hunk->use != USE_HUNK)
delta += hunk->header.old_count
- hunk->header.new_count;
- else
+ else {
+ /* merge overlapping hunks into a temporary hunk */
+ if (merge_hunks(s, file_diff, &i, use_all, &merged))
+ hunk = &merged;
+
render_hunk(s, hunk, delta, 0, out);
+
+ /*
+ * In case `merge_hunks()` used `plain` as a scratch
+ * pad (this happens when an edited hunk had to be
+ * coalesced with another hunk).
+ */
+ strbuf_setlen(&s->plain, save_len);
+
+ delta += hunk->delta;
+ }
}
}
return 0;
}
+static void recolor_hunk(struct add_p_state *s, struct hunk *hunk)
+{
+ const char *plain = s->plain.buf;
+ size_t current, eol, next;
+
+ if (!s->colored.len)
+ return;
+
+ hunk->colored_start = s->colored.len;
+ for (current = hunk->start; current < hunk->end; ) {
+ for (eol = current; eol < hunk->end; eol++)
+ if (plain[eol] == '\n')
+ break;
+ next = eol + (eol < hunk->end);
+ if (eol > current && plain[eol - 1] == '\r')
+ eol--;
+
+ strbuf_addstr(&s->colored,
+ plain[current] == '-' ?
+ s->s.file_old_color :
+ plain[current] == '+' ?
+ s->s.file_new_color :
+ s->s.context_color);
+ strbuf_add(&s->colored, plain + current, eol - current);
+ strbuf_addstr(&s->colored, GIT_COLOR_RESET);
+ if (next > eol)
+ strbuf_add(&s->colored, plain + eol, next - eol);
+ current = next;
+ }
+ hunk->colored_end = s->colored.len;
+}
+
+static int edit_hunk_manually(struct add_p_state *s, struct hunk *hunk)
+{
+ size_t i;
+
+ strbuf_reset(&s->buf);
+ strbuf_commented_addf(&s->buf, _("Manual hunk edit mode -- see bottom for "
+ "a quick guide.\n"));
+ render_hunk(s, hunk, 0, 0, &s->buf);
+ strbuf_commented_addf(&s->buf,
+ _("---\n"
+ "To remove '%c' lines, make them ' ' lines "
+ "(context).\n"
+ "To remove '%c' lines, delete them.\n"
+ "Lines starting with %c will be removed.\n"),
+ '-', '+', comment_line_char);
+ strbuf_commented_addf(&s->buf,
+ _("If the patch applies cleanly, the edited hunk "
+ "will immediately be\n"
+ "marked for staging.\n"));
+ /*
+ * TRANSLATORS: 'it' refers to the patch mentioned in the previous
+ * messages.
+ */
+ strbuf_commented_addf(&s->buf,
+ _("If it does not apply cleanly, you will be "
+ "given an opportunity to\n"
+ "edit again. If all lines of the hunk are "
+ "removed, then the edit is\n"
+ "aborted and the hunk is left unchanged.\n"));
+
+ if (strbuf_edit_interactively(&s->buf, "addp-hunk-edit.diff", NULL) < 0)
+ return -1;
+
+ /* strip out commented lines */
+ hunk->start = s->plain.len;
+ for (i = 0; i < s->buf.len; ) {
+ size_t next = find_next_line(&s->buf, i);
+
+ if (s->buf.buf[i] != comment_line_char)
+ strbuf_add(&s->plain, s->buf.buf + i, next - i);
+ i = next;
+ }
+
+ hunk->end = s->plain.len;
+ if (hunk->end == hunk->start)
+ /* The user aborted editing by deleting everything */
+ return 0;
+
+ recolor_hunk(s, hunk);
+
+ /*
+ * If the hunk header is intact, parse it, otherwise simply use the
+ * hunk header prior to editing (which will adjust `hunk->start` to
+ * skip the hunk header).
+ */
+ if (s->plain.buf[hunk->start] == '@' &&
+ parse_hunk_header(s, hunk) < 0)
+ return error(_("could not parse hunk header"));
+
+ return 1;
+}
+
+static ssize_t recount_edited_hunk(struct add_p_state *s, struct hunk *hunk,
+ size_t orig_old_count, size_t orig_new_count)
+{
+ struct hunk_header *header = &hunk->header;
+ size_t i;
+
+ header->old_count = header->new_count = 0;
+ for (i = hunk->start; i < hunk->end; ) {
+ switch (s->plain.buf[i]) {
+ case '-':
+ header->old_count++;
+ break;
+ case '+':
+ header->new_count++;
+ break;
+ case ' ': case '\r': case '\n':
+ header->old_count++;
+ header->new_count++;
+ break;
+ }
+
+ i = find_next_line(&s->plain, i);
+ }
+
+ return orig_old_count - orig_new_count
+ - header->old_count + header->new_count;
+}
+
+static int run_apply_check(struct add_p_state *s,
+ struct file_diff *file_diff)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ strbuf_reset(&s->buf);
+ reassemble_patch(s, file_diff, 1, &s->buf);
+
+ setup_child_process(s, &cp,
+ "apply", "--cached", "--check", NULL);
+ if (pipe_command(&cp, s->buf.buf, s->buf.len, NULL, 0, NULL, 0))
+ return error(_("'git apply --cached' failed"));
+
+ return 0;
+}
+
+static int prompt_yesno(struct add_p_state *s, const char *prompt)
+{
+ for (;;) {
+ color_fprintf(stdout, s->s.prompt_color, "%s", _(prompt));
+ fflush(stdout);
+ if (strbuf_getline(&s->answer, stdin) == EOF)
+ return -1;
+ strbuf_trim_trailing_newline(&s->answer);
+ switch (tolower(s->answer.buf[0])) {
+ case 'n': return 0;
+ case 'y': return 1;
+ }
+ }
+}
+
+static int edit_hunk_loop(struct add_p_state *s,
+ struct file_diff *file_diff, struct hunk *hunk)
+{
+ size_t plain_len = s->plain.len, colored_len = s->colored.len;
+ struct hunk backup;
+
+ backup = *hunk;
+
+ for (;;) {
+ int res = edit_hunk_manually(s, hunk);
+ if (res == 0) {
+ /* abandonded */
+ *hunk = backup;
+ return -1;
+ }
+
+ if (res > 0) {
+ hunk->delta +=
+ recount_edited_hunk(s, hunk,
+ backup.header.old_count,
+ backup.header.new_count);
+ if (!run_apply_check(s, file_diff))
+ return 0;
+ }
+
+ /* Drop edits (they were appended to s->plain) */
+ strbuf_setlen(&s->plain, plain_len);
+ strbuf_setlen(&s->colored, colored_len);
+ *hunk = backup;
+
+ /*
+ * TRANSLATORS: do not translate [y/n]
+ * The program will only accept that input at this point.
+ * Consider translating (saying "no" discards!) as
+ * (saying "n" for "no" discards!) if the translation
+ * of the word "no" does not start with n.
+ */
+ res = prompt_yesno(s, _("Your edited hunk does not apply. "
+ "Edit again (saying \"no\" discards!) "
+ "[y/n]? "));
+ if (res < 1)
+ return -1;
+ }
+}
+
+#define SUMMARY_HEADER_WIDTH 20
+#define SUMMARY_LINE_WIDTH 80
+static void summarize_hunk(struct add_p_state *s, struct hunk *hunk,
+ struct strbuf *out)
+{
+ struct hunk_header *header = &hunk->header;
+ struct strbuf *plain = &s->plain;
+ size_t len = out->len, i;
+
+ strbuf_addf(out, " -%lu,%lu +%lu,%lu ",
+ header->old_offset, header->old_count,
+ header->new_offset, header->new_count);
+ if (out->len - len < SUMMARY_HEADER_WIDTH)
+ strbuf_addchars(out, ' ',
+ SUMMARY_HEADER_WIDTH + len - out->len);
+ for (i = hunk->start; i < hunk->end; i = find_next_line(plain, i))
+ if (plain->buf[i] != ' ')
+ break;
+ if (i < hunk->end)
+ strbuf_add(out, plain->buf + i, find_next_line(plain, i) - i);
+ if (out->len - len > SUMMARY_LINE_WIDTH)
+ strbuf_setlen(out, len + SUMMARY_LINE_WIDTH);
+ strbuf_complete_line(out);
+}
+
+#define DISPLAY_HUNKS_LINES 20
+static size_t display_hunks(struct add_p_state *s,
+ struct file_diff *file_diff, size_t start_index)
+{
+ size_t end_index = start_index + DISPLAY_HUNKS_LINES;
+
+ if (end_index > file_diff->hunk_nr)
+ end_index = file_diff->hunk_nr;
+
+ while (start_index < end_index) {
+ struct hunk *hunk = file_diff->hunk + start_index++;
+
+ strbuf_reset(&s->buf);
+ strbuf_addf(&s->buf, "%c%2d: ", hunk->use == USE_HUNK ? '+'
+ : hunk->use == SKIP_HUNK ? '-' : ' ',
+ (int)start_index);
+ summarize_hunk(s, hunk, &s->buf);
+ fputs(s->buf.buf, stdout);
+ }
+
+ return end_index;
+}
+
static const char help_patch_text[] =
N_("y - stage this hunk\n"
"n - do not stage this hunk\n"
+ "q - quit; do not stage this hunk or any of the remaining ones\n"
"a - stage this and all the remaining hunks\n"
- "d - do not stage this hunk nor any of the remaining hunks\n"
- "j - leave this hunk undecided, see next undecided hunk\n"
+ "d - do not stage this hunk nor any of the remaining hunks\n");
+
+static const char help_patch_remainder[] =
+N_("j - leave this hunk undecided, see next undecided hunk\n"
"J - leave this hunk undecided, see next hunk\n"
"k - leave this hunk undecided, see previous undecided hunk\n"
"K - leave this hunk undecided, see previous hunk\n"
+ "g - select a hunk to go to\n"
+ "/ - search for a hunk matching the given regex\n"
"s - split the current hunk into smaller hunks\n"
+ "e - manually edit the current hunk\n"
"? - print help\n");
static int patch_update_file(struct add_p_state *s,
struct hunk *hunk;
char ch;
struct child_process cp = CHILD_PROCESS_INIT;
- int colored = !!s->colored.len;
+ int colored = !!s->colored.len, quit = 0;
enum prompt_mode_type prompt_mode_type;
if (!file_diff->hunk_nr)
strbuf_addstr(&s->buf, ",j");
if (hunk_index + 1 < file_diff->hunk_nr)
strbuf_addstr(&s->buf, ",J");
+ if (file_diff->hunk_nr > 1)
+ strbuf_addstr(&s->buf, ",g,/");
if (hunk->splittable_into > 1)
strbuf_addstr(&s->buf, ",s");
+ if (hunk_index + 1 > file_diff->mode_change &&
+ !file_diff->deleted)
+ strbuf_addstr(&s->buf, ",e");
if (file_diff->deleted)
prompt_mode_type = PROMPT_DELETION;
if (hunk->use == UNDECIDED_HUNK)
hunk->use = USE_HUNK;
}
- } else if (ch == 'd') {
+ } else if (ch == 'd' || ch == 'q') {
for (; hunk_index < file_diff->hunk_nr; hunk_index++) {
hunk = file_diff->hunk + hunk_index;
if (hunk->use == UNDECIDED_HUNK)
hunk->use = SKIP_HUNK;
}
+ if (ch == 'q') {
+ quit = 1;
+ break;
+ }
} else if (s->answer.buf[0] == 'K') {
if (hunk_index)
hunk_index--;
hunk_index = undecided_next;
else
err(s, _("No next hunk"));
+ } else if (s->answer.buf[0] == 'g') {
+ char *pend;
+ unsigned long response;
+
+ if (file_diff->hunk_nr < 2) {
+ err(s, _("No other hunks to goto"));
+ continue;
+ }
+ strbuf_remove(&s->answer, 0, 1);
+ strbuf_trim(&s->answer);
+ i = hunk_index - DISPLAY_HUNKS_LINES / 2;
+ if (i < file_diff->mode_change)
+ i = file_diff->mode_change;
+ while (s->answer.len == 0) {
+ i = display_hunks(s, file_diff, i);
+ printf("%s", i < file_diff->hunk_nr ?
+ _("go to which hunk (<ret> to see "
+ "more)? ") : _("go to which hunk? "));
+ fflush(stdout);
+ if (strbuf_getline(&s->answer,
+ stdin) == EOF)
+ break;
+ strbuf_trim_trailing_newline(&s->answer);
+ }
+
+ strbuf_trim(&s->answer);
+ response = strtoul(s->answer.buf, &pend, 10);
+ if (*pend || pend == s->answer.buf)
+ err(s, _("Invalid number: '%s'"),
+ s->answer.buf);
+ else if (0 < response && response <= file_diff->hunk_nr)
+ hunk_index = response - 1;
+ else
+ err(s, Q_("Sorry, only %d hunk available.",
+ "Sorry, only %d hunks available.",
+ file_diff->hunk_nr),
+ (int)file_diff->hunk_nr);
+ } else if (s->answer.buf[0] == '/') {
+ regex_t regex;
+ int ret;
+
+ if (file_diff->hunk_nr < 2) {
+ err(s, _("No other hunks to search"));
+ continue;
+ }
+ strbuf_remove(&s->answer, 0, 1);
+ strbuf_trim_trailing_newline(&s->answer);
+ if (s->answer.len == 0) {
+ printf("%s", _("search for regex? "));
+ fflush(stdout);
+ if (strbuf_getline(&s->answer,
+ stdin) == EOF)
+ break;
+ strbuf_trim_trailing_newline(&s->answer);
+ if (s->answer.len == 0)
+ continue;
+ }
+ ret = regcomp(®ex, s->answer.buf,
+ REG_EXTENDED | REG_NOSUB | REG_NEWLINE);
+ if (ret) {
+ char errbuf[1024];
+
+ regerror(ret, ®ex, errbuf, sizeof(errbuf));
+ err(s, _("Malformed search regexp %s: %s"),
+ s->answer.buf, errbuf);
+ continue;
+ }
+ i = hunk_index;
+ for (;;) {
+ /* render the hunk into a scratch buffer */
+ render_hunk(s, file_diff->hunk + i, 0, 0,
+ &s->buf);
+ if (regexec(®ex, s->buf.buf, 0, NULL, 0)
+ != REG_NOMATCH)
+ break;
+ i++;
+ if (i == file_diff->hunk_nr)
+ i = 0;
+ if (i != hunk_index)
+ continue;
+ err(s, _("No hunk matches the given pattern"));
+ break;
+ }
+ hunk_index = i;
} else if (s->answer.buf[0] == 's') {
size_t splittable_into = hunk->splittable_into;
if (splittable_into < 2)
color_fprintf_ln(stdout, s->s.header_color,
_("Split into %d hunks."),
(int)splittable_into);
- } else
- color_fprintf(stdout, s->s.help_color,
+ } else if (s->answer.buf[0] == 'e') {
+ if (hunk_index + 1 == file_diff->mode_change)
+ err(s, _("Sorry, cannot edit this hunk"));
+ else if (edit_hunk_loop(s, file_diff, hunk) >= 0) {
+ hunk->use = USE_HUNK;
+ goto soft_increment;
+ }
+ } else {
+ const char *p = _(help_patch_remainder), *eol = p;
+
+ color_fprintf(stdout, s->s.help_color, "%s",
_(help_patch_text));
+
+ /*
+ * Show only those lines of the remainder that are
+ * actually applicable with the current hunk.
+ */
+ for (; *p; p = eol + (*eol == '\n')) {
+ eol = strchrnul(p, '\n');
+
+ /*
+ * `s->buf` still contains the part of the
+ * commands shown in the prompt that are not
+ * always available.
+ */
+ if (*p != '?' && !strchr(s->buf.buf, *p))
+ continue;
+
+ color_fprintf_ln(stdout, s->s.help_color,
+ "%.*s", (int)(eol - p), p);
+ }
+ }
}
/* Any hunk to be used? */
if (i < file_diff->hunk_nr) {
/* At least one hunk selected: apply */
strbuf_reset(&s->buf);
- reassemble_patch(s, file_diff, &s->buf);
+ reassemble_patch(s, file_diff, 0, &s->buf);
discard_index(s->s.r->index);
setup_child_process(s, &cp, "apply", "--cached", NULL);
}
putchar('\n');
- return 0;
+ return quit;
}
int run_add_p(struct repository *r, const struct pathspec *ps)
struct add_p_state s = {
{ r }, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT
};
- size_t i;
+ size_t i, binary_count = 0;
init_add_i_state(&s.s, r);
}
for (i = 0; i < s.file_diff_nr; i++)
- if (patch_update_file(&s, s.file_diff + i))
+ if (s.file_diff[i].binary && !s.file_diff[i].hunk_nr)
+ binary_count++;
+ else if (patch_update_file(&s, s.file_diff + i))
break;
+ if (s.file_diff_nr == 0)
+ fprintf(stderr, _("No changes.\n"));
+ else if (binary_count == s.file_diff_nr)
+ fprintf(stderr, _("Only binary files changed.\n"));
+
strbuf_release(&s.answer);
strbuf_release(&s.buf);
strbuf_release(&s.plain);
projects / thirdparty / git.git / blobdiff