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built-in add -p: prepare for patch modes other than "stage"
The Perl script backing `git add -p` is used not only for that command, but also for `git stash -p`, `git reset -p` and `git checkout -p`. In preparation for teaching the C version of `git add -p` to support also the latter commands, let's abstract away what is "stage" specific into a dedicated data structure describing the differences between the patch modes. Finally, please note that the Perl version tries to make sure that the diffs are only generated for the modified files. This is not actually necessary, as the calls to Git's diff machinery already perform that work, and perform it well. This makes it unnecessary to port the `FILTER` field of the `%patch_modes` struct, as well as the `get_diff_reference()` function. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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2e4083198d
commit
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@ -924,7 +924,7 @@ static int run_patch(struct add_i_state *s, const struct pathspec *ps,
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parse_pathspec(&ps_selected,
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parse_pathspec(&ps_selected,
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PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
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PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
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PATHSPEC_LITERAL_PATH, "", args.argv);
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PATHSPEC_LITERAL_PATH, "", args.argv);
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res = run_add_p(s->r, &ps_selected);
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res = run_add_p(s->r, ADD_P_ADD, NULL, &ps_selected);
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argv_array_clear(&args);
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argv_array_clear(&args);
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clear_pathspec(&ps_selected);
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clear_pathspec(&ps_selected);
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}
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}
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@ -22,6 +22,12 @@ void init_add_i_state(struct add_i_state *s, struct repository *r);
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struct repository;
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struct repository;
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struct pathspec;
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struct pathspec;
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int run_add_i(struct repository *r, const struct pathspec *ps);
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int run_add_i(struct repository *r, const struct pathspec *ps);
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int run_add_p(struct repository *r, const struct pathspec *ps);
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enum add_p_mode {
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ADD_P_ADD,
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};
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int run_add_p(struct repository *r, enum add_p_mode mode,
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const char *revision, const struct pathspec *ps);
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#endif
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#endif
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95
add-patch.c
95
add-patch.c
@ -8,13 +8,41 @@
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#include "diff.h"
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#include "diff.h"
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enum prompt_mode_type {
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enum prompt_mode_type {
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PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_HUNK
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PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_HUNK,
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PROMPT_MODE_MAX, /* must be last */
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};
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};
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static const char *prompt_mode[] = {
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struct patch_mode {
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N_("Stage mode change [y,n,a,q,d%s,?]? "),
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/*
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N_("Stage deletion [y,n,a,q,d%s,?]? "),
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* The magic constant 4 is chosen such that all patch modes
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N_("Stage this hunk [y,n,a,q,d%s,?]? ")
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* provide enough space for three command-line arguments followed by a
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* trailing `NULL`.
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*/
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const char *diff_cmd[4], *apply_args[4], *apply_check_args[4];
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unsigned is_reverse:1, apply_for_checkout:1;
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const char *prompt_mode[PROMPT_MODE_MAX];
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const char *edit_hunk_hint, *help_patch_text;
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};
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static struct patch_mode patch_mode_add = {
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.diff_cmd = { "diff-files", NULL },
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.apply_args = { "--cached", NULL },
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.apply_check_args = { "--cached", NULL },
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.prompt_mode = {
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N_("Stage mode change [y,n,q,a,d%s,?]? "),
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N_("Stage deletion [y,n,q,a,d%s,?]? "),
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N_("Stage this hunk [y,n,q,a,d%s,?]? ")
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},
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.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
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"will immediately be marked for staging."),
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.help_patch_text =
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N_("y - stage this hunk\n"
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"n - do not stage this hunk\n"
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"q - quit; do not stage this hunk or any of the remaining "
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"ones\n"
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"a - stage this hunk and all later hunks in the file\n"
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"d - do not stage this hunk or any of the later hunks in "
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"the file\n")
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};
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};
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struct hunk_header {
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struct hunk_header {
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@ -47,6 +75,10 @@ struct add_p_state {
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unsigned deleted:1, mode_change:1,binary:1;
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unsigned deleted:1, mode_change:1,binary:1;
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} *file_diff;
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} *file_diff;
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size_t file_diff_nr;
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size_t file_diff_nr;
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/* patch mode */
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struct patch_mode *mode;
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const char *revision;
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};
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};
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static void err(struct add_p_state *s, const char *fmt, ...)
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static void err(struct add_p_state *s, const char *fmt, ...)
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@ -162,9 +194,18 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
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struct hunk *hunk = NULL;
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struct hunk *hunk = NULL;
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int res;
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int res;
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argv_array_pushv(&args, s->mode->diff_cmd);
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if (s->revision) {
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struct object_id oid;
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argv_array_push(&args,
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/* could be on an unborn branch */
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!strcmp("HEAD", s->revision) &&
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get_oid("HEAD", &oid) ?
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empty_tree_oid_hex() : s->revision);
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}
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color_arg_index = args.argc;
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/* Use `--no-color` explicitly, just in case `diff.color = always`. */
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/* Use `--no-color` explicitly, just in case `diff.color = always`. */
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argv_array_pushl(&args, "diff-files", "-p", "--no-color", "--", NULL);
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argv_array_pushl(&args, "--no-color", "-p", "--", NULL);
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color_arg_index = args.argc - 2;
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for (i = 0; i < ps->nr; i++)
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for (i = 0; i < ps->nr; i++)
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argv_array_push(&args, ps->items[i].original);
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argv_array_push(&args, ps->items[i].original);
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@ -382,7 +423,10 @@ static void render_hunk(struct add_p_state *s, struct hunk *hunk,
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- header->colored_extra_start;
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- header->colored_extra_start;
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}
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}
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new_offset += delta;
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if (s->mode->is_reverse)
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old_offset -= delta;
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else
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new_offset += delta;
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strbuf_addf(out, "@@ -%lu,%lu +%lu,%lu @@",
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strbuf_addf(out, "@@ -%lu,%lu +%lu,%lu @@",
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old_offset, header->old_count,
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old_offset, header->old_count,
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@ -805,11 +849,10 @@ static int edit_hunk_manually(struct add_p_state *s, struct hunk *hunk)
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"(context).\n"
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"(context).\n"
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"To remove '%c' lines, delete them.\n"
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"To remove '%c' lines, delete them.\n"
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"Lines starting with %c will be removed.\n"),
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"Lines starting with %c will be removed.\n"),
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'-', '+', comment_line_char);
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s->mode->is_reverse ? '+' : '-',
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strbuf_commented_addf(&s->buf,
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s->mode->is_reverse ? '-' : '+',
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_("If the patch applies cleanly, the edited hunk "
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comment_line_char);
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"will immediately be\n"
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strbuf_commented_addf(&s->buf, "%s", _(s->mode->edit_hunk_hint));
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"marked for staging.\n"));
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/*
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/*
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* TRANSLATORS: 'it' refers to the patch mentioned in the previous
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* TRANSLATORS: 'it' refers to the patch mentioned in the previous
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* messages.
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* messages.
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@ -890,7 +933,8 @@ static int run_apply_check(struct add_p_state *s,
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reassemble_patch(s, file_diff, 1, &s->buf);
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reassemble_patch(s, file_diff, 1, &s->buf);
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setup_child_process(s, &cp,
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setup_child_process(s, &cp,
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"apply", "--cached", "--check", NULL);
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"apply", "--check", NULL);
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argv_array_pushv(&cp.args, s->mode->apply_check_args);
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if (pipe_command(&cp, s->buf.buf, s->buf.len, NULL, 0, NULL, 0))
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if (pipe_command(&cp, s->buf.buf, s->buf.len, NULL, 0, NULL, 0))
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return error(_("'git apply --cached' failed"));
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return error(_("'git apply --cached' failed"));
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@ -1005,13 +1049,6 @@ static size_t display_hunks(struct add_p_state *s,
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return end_index;
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return end_index;
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}
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}
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static const char help_patch_text[] =
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N_("y - stage this hunk\n"
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"n - do not stage this hunk\n"
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"q - quit; do not stage this hunk or any of the remaining ones\n"
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"a - stage this and all the remaining hunks\n"
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"d - do not stage this hunk nor any of the remaining hunks\n");
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static const char help_patch_remainder[] =
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static const char help_patch_remainder[] =
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N_("j - leave this hunk undecided, see next undecided hunk\n"
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N_("j - leave this hunk undecided, see next undecided hunk\n"
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"J - leave this hunk undecided, see next hunk\n"
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"J - leave this hunk undecided, see next hunk\n"
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@ -1097,7 +1134,8 @@ static int patch_update_file(struct add_p_state *s,
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(uintmax_t)hunk_index + 1,
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(uintmax_t)hunk_index + 1,
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(uintmax_t)file_diff->hunk_nr);
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(uintmax_t)file_diff->hunk_nr);
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color_fprintf(stdout, s->s.prompt_color,
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color_fprintf(stdout, s->s.prompt_color,
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_(prompt_mode[prompt_mode_type]), s->buf.buf);
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_(s->mode->prompt_mode[prompt_mode_type]),
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s->buf.buf);
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fflush(stdout);
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fflush(stdout);
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if (strbuf_getline(&s->answer, stdin) == EOF)
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if (strbuf_getline(&s->answer, stdin) == EOF)
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break;
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break;
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@ -1254,7 +1292,7 @@ soft_increment:
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const char *p = _(help_patch_remainder), *eol = p;
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const char *p = _(help_patch_remainder), *eol = p;
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color_fprintf(stdout, s->s.help_color, "%s",
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color_fprintf(stdout, s->s.help_color, "%s",
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_(help_patch_text));
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_(s->mode->help_patch_text));
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/*
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/*
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* Show only those lines of the remainder that are
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* Show only those lines of the remainder that are
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@ -1288,10 +1326,11 @@ soft_increment:
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reassemble_patch(s, file_diff, 0, &s->buf);
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reassemble_patch(s, file_diff, 0, &s->buf);
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discard_index(s->s.r->index);
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discard_index(s->s.r->index);
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setup_child_process(s, &cp, "apply", "--cached", NULL);
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setup_child_process(s, &cp, "apply", NULL);
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argv_array_pushv(&cp.args, s->mode->apply_args);
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if (pipe_command(&cp, s->buf.buf, s->buf.len,
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if (pipe_command(&cp, s->buf.buf, s->buf.len,
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NULL, 0, NULL, 0))
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NULL, 0, NULL, 0))
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error(_("'git apply --cached' failed"));
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error(_("'git apply' failed"));
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if (!repo_read_index(s->s.r))
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if (!repo_read_index(s->s.r))
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repo_refresh_and_write_index(s->s.r, REFRESH_QUIET, 0,
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repo_refresh_and_write_index(s->s.r, REFRESH_QUIET, 0,
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1, NULL, NULL, NULL);
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1, NULL, NULL, NULL);
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@ -1301,7 +1340,8 @@ soft_increment:
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return quit;
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return quit;
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}
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}
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int run_add_p(struct repository *r, const struct pathspec *ps)
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int run_add_p(struct repository *r, enum add_p_mode mode,
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const char *revision, const struct pathspec *ps)
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{
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{
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struct add_p_state s = {
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struct add_p_state s = {
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{ r }, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT
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{ r }, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT
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@ -1310,6 +1350,9 @@ int run_add_p(struct repository *r, const struct pathspec *ps)
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init_add_i_state(&s.s, r);
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init_add_i_state(&s.s, r);
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s.mode = &patch_mode_add;
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s.revision = revision;
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if (discard_index(r->index) < 0 || repo_read_index(r) < 0 ||
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if (discard_index(r->index) < 0 || repo_read_index(r) < 0 ||
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repo_refresh_and_write_index(r, REFRESH_QUIET, 0, 1,
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repo_refresh_and_write_index(r, REFRESH_QUIET, 0, 1,
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NULL, NULL, NULL) < 0 ||
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NULL, NULL, NULL) < 0 ||
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@ -194,12 +194,18 @@ int run_add_interactive(const char *revision, const char *patch_mode,
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&use_builtin_add_i);
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&use_builtin_add_i);
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if (use_builtin_add_i == 1) {
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if (use_builtin_add_i == 1) {
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enum add_p_mode mode;
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if (!patch_mode)
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if (!patch_mode)
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return !!run_add_i(the_repository, pathspec);
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return !!run_add_i(the_repository, pathspec);
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if (strcmp(patch_mode, "--patch"))
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if (!strcmp(patch_mode, "--patch"))
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mode = ADD_P_ADD;
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else
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die("'%s' not yet supported in the built-in add -p",
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die("'%s' not yet supported in the built-in add -p",
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patch_mode);
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patch_mode);
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return !!run_add_p(the_repository, pathspec);
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return !!run_add_p(the_repository, mode, revision, pathspec);
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}
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}
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argv_array_push(&argv, "add--interactive");
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argv_array_push(&argv, "add--interactive");
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