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help.c: help.autocorrect=prompt waits for user action

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If help.autocorrect is set to 'prompt', the user is prompted
before the suggested action is executed.

Based on original patch by David Barr
https://lore.kernel.org/git/1283758030-13345-1-git-send-email-david.barr@cordelta.com/

Signed-off-by: Azeem Bande-Ali <me@azeemba.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Azeem Bande-Ali 2021-08-14 05:11:12 +00:00 committed by Junio C Hamano
parent 5d213e46bb
commit dc66e3c799
2 changed files with 29 additions and 8 deletions
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16
Documentation/config/help.txt
View File

@ -9,13 +9,15 @@ help.format::
help.autoCorrect::
If git detects typos and can identify exactly one valid command similar
to the error, git will automatically run the intended command after
waiting a duration of time defined by this configuration value in
deciseconds (0.1 sec). If this value is 0, the suggested corrections
will be shown, but not executed. If it is a negative integer, or
"immediate", the suggested command
is run immediately. If "never", suggestions are not shown at all. The
default value is zero.
to the error, git will try to suggest the correct command or even
run the suggestion automatically. Possible config values are:
- 0 (default): show the suggested command.
- positive number: run the suggested command after specified
deciseconds (0.1 sec).
- "immediate": run the suggested command immediately.
- "prompt": show the suggestion and prompt for confirmation to run
the command.
- "never": don't run or show any suggested command.
help.htmlPath::
Specify the path where the HTML documentation resides. File system paths

21
help.c
View File

@ -11,6 +11,7 @@
#include "version.h"
#include "refs.h"
#include "parse-options.h"
#include "prompt.h"
struct category_description {
uint32_t category;
@ -472,6 +473,7 @@ int is_in_cmdlist(struct cmdnames *c, const char *s)
static int autocorrect;
static struct cmdnames aliases;
#define AUTOCORRECT_PROMPT (-3)
#define AUTOCORRECT_NEVER (-2)
#define AUTOCORRECT_IMMEDIATELY (-1)
@ -486,6 +488,8 @@ static int git_unknown_cmd_config(const char *var, const char *value, void *cb)
autocorrect = AUTOCORRECT_NEVER;
} else if (!strcmp(value, "immediate")) {
autocorrect = AUTOCORRECT_IMMEDIATELY;
} else if (!strcmp(value, "prompt")) {
autocorrect = AUTOCORRECT_PROMPT;
} else {
int v = git_config_int(var, value);
autocorrect = (v < 0)
@ -539,6 +543,12 @@ const char *help_unknown_cmd(const char *cmd)
read_early_config(git_unknown_cmd_config, NULL);
/*
* Disable autocorrection prompt in a non-interactive session
*/
if ((autocorrect == AUTOCORRECT_PROMPT) && (!isatty(0) || !isatty(2)))
autocorrect = AUTOCORRECT_NEVER;
if (autocorrect == AUTOCORRECT_NEVER) {
fprintf_ln(stderr, _("git: '%s' is not a git command. See 'git --help'."), cmd);
exit(1);
@ -618,7 +628,16 @@ const char *help_unknown_cmd(const char *cmd)
_("Continuing under the assumption that "
"you meant '%s'."),
assumed);
else {
else if (autocorrect == AUTOCORRECT_PROMPT) {
char *answer;
struct strbuf msg = STRBUF_INIT;
strbuf_addf(&msg, _("Run '%s' instead? (y/N)"), assumed);
answer = git_prompt(msg.buf, PROMPT_ECHO);
strbuf_release(&msg);
if (!(starts_with(answer, "y") ||
starts_with(answer, "Y")))
exit(1);
} else {
fprintf_ln(stderr,
_("Continuing in %0.1f seconds, "
"assuming that you meant '%s'."),