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built-in add -p: respect the interactive.singlekey config setting

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The Perl version of `git add -p` supports this config setting to allow
users to input commands via single characters (as opposed to having to
press the <Enter> key afterwards).

This is an opt-in feature because it requires Perl packages
(Term::ReadKey and Term::Cap, where it tries to handle an absence of the
latter package gracefully) to work. Note that at least on Ubuntu, that
Perl package is not installed by default (it needs to be installed via
`sudo apt-get install libterm-readkey-perl`), so this feature is
probably not used a whole lot.

In C, we obviously do not have these packages available, but we just
introduced `read_single_keystroke()` that is similar to what
Term::ReadKey provides, and we use that here.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2020-01-14 18:43:50 +00:00 committed by Junio C Hamano
parent a5e46e6b01
commit 04f816b125
3 changed files with 20 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
add-interactive.c
View File

@ -60,6 +60,8 @@ void init_add_i_state(struct add_i_state *s, struct repository *r)
FREE_AND_NULL(s->interactive_diff_algorithm);
git_config_get_string("diff.algorithm",
&s->interactive_diff_algorithm);
git_config_get_bool("interactive.singlekey", &s->use_single_key);
}
void clear_add_i_state(struct add_i_state *s)

1
add-interactive.h
View File

@ -16,6 +16,7 @@ struct add_i_state {
char file_old_color[COLOR_MAXLEN];
char file_new_color[COLOR_MAXLEN];
int use_single_key;
char *interactive_diff_filter, *interactive_diff_algorithm;
};

21
add-patch.c
View File

@ -6,6 +6,7 @@
#include "pathspec.h"
#include "color.h"
#include "diff.h"
#include "compat/terminal.h"
enum prompt_mode_type {
PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_HUNK,
@ -1149,14 +1150,27 @@ static int run_apply_check(struct add_p_state *s,
return 0;
}
static int read_single_character(struct add_p_state *s)
{
if (s->s.use_single_key) {
int res = read_key_without_echo(&s->answer);
printf("%s\n", res == EOF ? "" : s->answer.buf);
return res;
}
if (strbuf_getline(&s->answer, stdin) == EOF)
return EOF;
strbuf_trim_trailing_newline(&s->answer);
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)
if (read_single_character(s) == EOF)
return -1;
strbuf_trim_trailing_newline(&s->answer);
switch (tolower(s->answer.buf[0])) {
case 'n': return 0;
case 'y': return 1;
@ -1396,9 +1410,8 @@ static int patch_update_file(struct add_p_state *s,
_(s->mode->prompt_mode[prompt_mode_type]),
s->buf.buf);
fflush(stdout);
if (strbuf_getline(&s->answer, stdin) == EOF)
if (read_single_character(s) == EOF)
break;
strbuf_trim_trailing_newline(&s->answer);
if (!s->answer.len)
continue;