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git/builtin/column.c
Nguyễn Thái Ngọc Duy 7e29b8254f Add column layout skeleton and git-column
A column option string consists of many token separated by either
a space or a  comma. A token belongs to one of three groups:

 - enabling: always, never and auto
 - layout mode: currently plain (which does not layout at all)
 - other future tuning flags

git-column can be used to pipe output to from a command that wants
column layout, but not to mess with its own output code. Simpler output
code can be changed to use column layout code directly.

Thanks-to: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 09:26:37 -07:00

59 lines
1.8 KiB
C

#include "builtin.h"
#include "cache.h"
#include "strbuf.h"
#include "parse-options.h"
#include "string-list.h"
#include "column.h"
static const char * const builtin_column_usage[] = {
"git column [options]",
NULL
};
static unsigned int colopts;
static int column_config(const char *var, const char *value, void *cb)
{
return git_column_config(var, value, cb, &colopts);
}
int cmd_column(int argc, const char **argv, const char *prefix)
{
struct string_list list = STRING_LIST_INIT_DUP;
struct strbuf sb = STRBUF_INIT;
struct column_options copts;
const char *command = NULL, *real_command = NULL;
struct option options[] = {
OPT_STRING(0, "command", &real_command, "name", "lookup config vars"),
OPT_COLUMN(0, "mode", &colopts, "layout to use"),
OPT_INTEGER(0, "raw-mode", &colopts, "layout to use"),
OPT_INTEGER(0, "width", &copts.width, "Maximum width"),
OPT_STRING(0, "indent", &copts.indent, "string", "Padding space on left border"),
OPT_INTEGER(0, "nl", &copts.nl, "Padding space on right border"),
OPT_INTEGER(0, "padding", &copts.padding, "Padding space between columns"),
OPT_END()
};
/* This one is special and must be the first one */
if (argc > 1 && !prefixcmp(argv[1], "--command=")) {
command = argv[1] + 10;
git_config(column_config, (void *)command);
} else
git_config(column_config, NULL);
memset(&copts, 0, sizeof(copts));
copts.width = term_columns();
copts.padding = 1;
argc = parse_options(argc, argv, "", options, builtin_column_usage, 0);
if (argc)
usage_with_options(builtin_column_usage, options);
if (real_command || command) {
if (!real_command || !command || strcmp(real_command, command))
die(_("--command must be the first argument"));
}
finalize_colopts(&colopts, -1);
while (!strbuf_getline(&sb, stdin, '\n'))
string_list_append(&list, sb.buf);
print_columns(&list, colopts, &copts);
return 0;
}