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#include "builtin.h"
#include "cache.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...] < <list-of-paths>"),
NULL
};
static int null_term_line;
static const struct option check_attr_options[] = {
OPT_BOOLEAN('a', "all", &all_attrs, N_("report all attributes set on file")),
OPT_BOOLEAN(0, "cached", &cached_attrs, N_("use .gitattributes only from the index")),
OPT_BOOLEAN(0 , "stdin", &stdin_paths, N_("read file names from stdin")),
OPT_BOOLEAN('z', NULL, &null_term_line,
N_("input paths are terminated by a null character")),
OPT_END()
};
static void output_attr(int cnt, struct git_attr_check *check,
const char *file)
{
int j;
for (j = 0; j < cnt; j++) {
const char *value = check[j].value;
if (ATTR_TRUE(value))
value = "set";
else if (ATTR_FALSE(value))
value = "unset";
else if (ATTR_UNSET(value))
value = "unspecified";
quote_c_style(file, NULL, stdout, 0);
printf(": %s: %s\n", git_attr_name(check[j].attr), value);
}
}
static void check_attr(const char *prefix, int cnt,
struct git_attr_check *check, const char *file)
{
char *full_path =
prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
if (check != NULL) {
if (git_check_attr(full_path, cnt, check))
die("git_check_attr died");
output_attr(cnt, check, file);
} else {
if (git_all_attrs(full_path, &cnt, &check))
die("git_all_attrs died");
output_attr(cnt, check, file);
free(check);
}
free(full_path);
}
static void check_attr_stdin_paths(const char *prefix, int cnt,
struct git_attr_check *check)
{
struct strbuf buf, nbuf;
int line_termination = null_term_line ? 0 : '\n';
strbuf_init(&buf, 0);
strbuf_init(&nbuf, 0);
while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
if (line_termination && buf.buf[0] == '"') {
strbuf_reset(&nbuf);
if (unquote_c_style(&nbuf, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &nbuf);
}
check_attr(prefix, cnt, check, buf.buf);
maybe_flush_or_die(stdout, "attribute to stdout");
}
strbuf_release(&buf);
strbuf_release(&nbuf);
}
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 git_attr_check *check;
int cnt, i, doubledash, filei;
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");
}
if (all_attrs) {
check = NULL;
} else {
check = xcalloc(cnt, sizeof(*check));
for (i = 0; i < cnt; i++) {
const char *name;
struct git_attr *a;
name = argv[i];
a = git_attr(name);
if (!a)
return error("%s: not a valid attribute name",
name);
check[i].attr = a;
}
}
if (stdin_paths)
check_attr_stdin_paths(prefix, cnt, check);
else {
for (i = filei; i < argc; i++)
check_attr(prefix, cnt, check, argv[i]);
maybe_flush_or_die(stdout, "attribute to stdout");
}
return 0;
}
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