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completion: add and use --list-cmds=alias

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By providing aliases via --list-cmds=, we could simplify command
collection code in the script. We only issue one git command. Before
this patch that is "git config", after it's "git --list-cmds=". In
"git help" completion case we actually reduce one "git" process (for
getting guides) but that call was added in this series so it does not
really count.

A couple of bash functions are removed because they are not needed
anymore. __git_compute_all_commands() and $__git_all_commands stay
because they are still needed for completing pager.* config and
without "alias" group, the result is still cacheable.

There is a slight (good) change in _git_help() with this patch: before
"git help <tab>" shows external commands (as in _not_ part of git) as
well as part of $__git_all_commands. We have finer control over
command listing now and can exclude that because we can't provide a
man page for external commands anyway.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2018-05-20 20:40:08 +02:00
committed by Junio C Hamano
parent e11dca10cf
commit 3301d36b29
6 changed files with 40 additions and 81 deletions
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21
alias.c
View File

@@ -1,10 +1,12 @@
#include "cache.h"
#include "alias.h"
#include "config.h"
#include "string-list.h"
struct config_alias_data {
const char *alias;
char *v;
struct string_list *list;
};
static int config_alias_cb(const char *key, const char *value, void *d)
@@ -12,8 +14,16 @@ static int config_alias_cb(const char *key, const char *value, void *d)
struct config_alias_data *data = d;
const char *p;
if (skip_prefix(key, "alias.", &p) && !strcasecmp(p, data->alias))
return git_config_string((const char **)&data->v, key, value);
if (!skip_prefix(key, "alias.", &p))
return 0;
if (data->alias) {
if (!strcasecmp(p, data->alias))
return git_config_string((const char **)&data->v,
key, value);
} else if (data->list) {
string_list_append(data->list, p);
}
return 0;
}
@@ -27,6 +37,13 @@ char *alias_lookup(const char *alias)
return data.v;
}
void list_aliases(struct string_list *list)
{
struct config_alias_data data = { NULL, NULL, list };
read_early_config(config_alias_cb, &data);
}
#define SPLIT_CMDLINE_BAD_ENDING 1
#define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
static const char *split_cmdline_errors[] = {