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help: reuse print_columns() for help -a

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"help -a" also respects column.ui (and column.help if presents)

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 2012-04-13 17:54:37 +07:00 committed by Junio C Hamano
parent 3f8eccbe16
commit dbfae68969
3 changed files with 30 additions and 38 deletions
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7
builtin/help.c
View File

@ -9,6 +9,7 @@
#include "common-cmds.h"
#include "parse-options.h"
#include "run-command.h"
#include "column.h"
#include "help.h"
static struct man_viewer_list {
@ -30,6 +31,7 @@ enum help_format {
};
static int show_all = 0;
static unsigned int colopts;
static enum help_format help_format = HELP_FORMAT_NONE;
static struct option builtin_help_options[] = {
OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
@ -251,6 +253,8 @@ static int add_man_viewer_info(const char *var, const char *value)
static int git_help_config(const char *var, const char *value, void *cb)
{
if (!prefixcmp(var, "column."))
return git_column_config(var, value, "help", &colopts);
if (!strcmp(var, "help.format")) {
if (!value)
return config_error_nonbool(var);
@ -424,8 +428,9 @@ int cmd_help(int argc, const char **argv, const char *prefix)
parsed_help_format = help_format;
if (show_all) {
git_config(git_help_config, NULL);
printf("usage: %s\n\n", git_usage_string);
list_commands("git commands", &main_cmds, &other_cmds);
list_commands("git commands", colopts, &main_cmds, &other_cmds);
printf("%s\n", git_more_info_string);
return 0;
}

59
help.c
View File

@ -4,6 +4,8 @@
#include "levenshtein.h"
#include "help.h"
#include "common-cmds.h"
#include "string-list.h"
#include "column.h"
void add_cmdname(struct cmdnames *cmds, const char *name, int len)
{
@ -70,31 +72,25 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
cmds->cnt = cj;
}
static void pretty_print_string_list(struct cmdnames *cmds, int longest)
static void pretty_print_string_list(struct cmdnames *cmds,
unsigned int colopts)
{
int cols = 1, rows;
int space = longest + 1; /* min 1 SP between words */
int max_cols = term_columns() - 1; /* don't print *on* the edge */
int i, j;
struct string_list list = STRING_LIST_INIT_NODUP;
struct column_options copts;
int i;
if (space < max_cols)
cols = max_cols / space;
rows = DIV_ROUND_UP(cmds->cnt, cols);
for (i = 0; i < rows; i++) {
printf(" ");
for (j = 0; j < cols; j++) {
int n = j * rows + i;
int size = space;
if (n >= cmds->cnt)
break;
if (j == cols-1 || n + rows >= cmds->cnt)
size = 1;
printf("%-*s", size, cmds->names[n]->name);
}
putchar('\n');
}
for (i = 0; i < cmds->cnt; i++)
string_list_append(&list, cmds->names[i]->name);
/*
* always enable column display, we only consult column.*
* about layout strategy and stuff
*/
colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
memset(&copts, 0, sizeof(copts));
copts.indent = " ";
copts.padding = 2;
print_columns(&list, colopts, &copts);
string_list_clear(&list, 0);
}
static int is_executable(const char *name)
@ -203,25 +199,16 @@ void load_command_list(const char *prefix,
exclude_cmds(other_cmds, main_cmds);
}
void list_commands(const char *title, struct cmdnames *main_cmds,
struct cmdnames *other_cmds)
void list_commands(const char *title, unsigned int colopts,
struct cmdnames *main_cmds, struct cmdnames *other_cmds)
{
int i, longest = 0;
for (i = 0; i < main_cmds->cnt; i++)
if (longest < main_cmds->names[i]->len)
longest = main_cmds->names[i]->len;
for (i = 0; i < other_cmds->cnt; i++)
if (longest < other_cmds->names[i]->len)
longest = other_cmds->names[i]->len;
if (main_cmds->cnt) {
const char *exec_path = git_exec_path();
printf("available %s in '%s'\n", title, exec_path);
printf("----------------");
mput_char('-', strlen(title) + strlen(exec_path));
putchar('\n');
pretty_print_string_list(main_cmds, longest);
pretty_print_string_list(main_cmds, colopts);
putchar('\n');
}
@ -230,7 +217,7 @@ void list_commands(const char *title, struct cmdnames *main_cmds,
printf("---------------------------------------");
mput_char('-', strlen(title));
putchar('\n');
pretty_print_string_list(other_cmds, longest);
pretty_print_string_list(other_cmds, colopts);
putchar('\n');
}
}

2
help.h
View File

@ -25,7 +25,7 @@ extern void add_cmdname(struct cmdnames *cmds, const char *name, int len);
/* Here we require that excludes is a sorted list. */
extern void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes);
extern int is_in_cmdlist(struct cmdnames *cmds, const char *name);
extern void list_commands(const char *title,
extern void list_commands(const char *title, unsigned int colopts,
struct cmdnames *main_cmds,
struct cmdnames *other_cmds);