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#include "builtin.h"
#include "cache.h"
#include "config.h"
#include "attr.h"
#include "quote.h"
#include "parse-options.h"
static int all_attrs;
static int cached_attrs;
static int stdin_paths;
static const char * const check_attr_usage[] = {
N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."),
N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"),
NULL
};
static int nul_term_line;
static const struct option check_attr_options[] = {
OPT_BOOL('a', "all", &all_attrs, N_("report all attributes set on file")),
OPT_BOOL(0, "cached", &cached_attrs, N_("use .gitattributes only from the index")),
OPT_BOOL(0 , "stdin", &stdin_paths, N_("read file names from stdin")),
OPT_BOOL('z', NULL, &nul_term_line,
N_("terminate input and output records by a NUL character")),
OPT_END()
};
static void output_attr(struct attr_check *check, const char *file)
{
int j;
int cnt = check->nr;
for (j = 0; j < cnt; j++) {
const char *value = check->items[j].value;
if (ATTR_TRUE(value))
value = "set";
else if (ATTR_FALSE(value))
value = "unset";
else if (ATTR_UNSET(value))
value = "unspecified";
if (nul_term_line) {
printf("%s%c" /* path */
"%s%c" /* attrname */
"%s%c" /* attrvalue */,
file, 0,
git_attr_name(check->items[j].attr), 0, value, 0);
} else {
quote_c_style(file, NULL, stdout, 0);
printf(": %s: %s\n",
git_attr_name(check->items[j].attr), value);
}
}
}
static void check_attr(const char *prefix,
struct attr_check *check,
int collect_all,
const char *file)
{
char *full_path =
prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
if (collect_all) {
git_all_attrs(&the_index, full_path, check);
} else {
if (git_check_attr(&the_index, full_path, check))
die("git_check_attr died");
}
output_attr(check, file);
free(full_path);
}
static void check_attr_stdin_paths(const char *prefix,
struct attr_check *check,
int collect_all)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf unquoted = STRBUF_INIT;
strbuf_getline_fn getline_fn;
getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
while (getline_fn(&buf, stdin) != EOF) {
if (!nul_term_line && buf.buf[0] == '"') {
strbuf_reset(&unquoted);
if (unquote_c_style(&unquoted, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &unquoted);
}
check_attr(prefix, check, collect_all, buf.buf);
maybe_flush_or_die(stdout, "attribute to stdout");
}
strbuf_release(&buf);
strbuf_release(&unquoted);
}
static NORETURN void error_with_usage(const char *msg)
{
error("%s", msg);
usage_with_options(check_attr_usage, check_attr_options);
}
int cmd_check_attr(int argc, const char **argv, const char *prefix)
{
struct attr_check *check;
int cnt, i, doubledash, filei;
if (!is_bare_repository())
setup_work_tree();
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, check_attr_options,
check_attr_usage, PARSE_OPT_KEEP_DASHDASH);
if (read_cache() < 0) {
die("invalid cache");
}
if (cached_attrs)
git_attr_set_direction(GIT_ATTR_INDEX, NULL);
doubledash = -1;
for (i = 0; doubledash < 0 && i < argc; i++) {
if (!strcmp(argv[i], "--"))
doubledash = i;
}
/* Process --all and/or attribute arguments: */
if (all_attrs) {
if (doubledash >= 1)
error_with_usage("Attributes and --all both specified");
cnt = 0;
filei = doubledash + 1;
} else if (doubledash == 0) {
error_with_usage("No attribute specified");
} else if (doubledash < 0) {
if (!argc)
error_with_usage("No attribute specified");
if (stdin_paths) {
/* Treat all arguments as attribute names. */
cnt = argc;
filei = argc;
} else {
/* Treat exactly one argument as an attribute name. */
cnt = 1;
filei = 1;
}
} else {
cnt = doubledash;
filei = doubledash + 1;
}
/* Check file argument(s): */
if (stdin_paths) {
if (filei < argc)
error_with_usage("Can't specify files with --stdin");
} else {
if (filei >= argc)
error_with_usage("No file specified");
}
check = attr_check_alloc();
if (!all_attrs) {
for (i = 0; i < cnt; i++) {
const struct git_attr *a = git_attr(argv[i]);
if (!a)
return error("%s: not a valid attribute name",
argv[i]);
attr_check_append(check, a);
}
}
if (stdin_paths)
check_attr_stdin_paths(prefix, check, all_attrs);
else {
for (i = filei; i < argc; i++)
check_attr(prefix, check, all_attrs, argv[i]);
maybe_flush_or_die(stdout, "attribute to stdout");
}
attr_check_free(check);
return 0;
}
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