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sparse-checkout: add '--stdin' option to set subcommand

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The 'git sparse-checkout set' subcommand takes a list of patterns
and places them in the sparse-checkout file. Then, it updates the
working directory to match those patterns. For a large list of
patterns, the command-line call can get very cumbersome.

Add a '--stdin' option to instead read patterns over standard in.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2019-11-21 22:04:37 +00:00
committed by Junio C Hamano
parent f6039a9423
commit 7bffca95ea
3 changed files with 55 additions and 2 deletions
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34
builtin/sparse-checkout.c
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@ -150,6 +150,15 @@ static int write_patterns_and_update(struct pattern_list *pl)
return update_working_directory();
}
static char const * const builtin_sparse_checkout_set_usage[] = {
N_("git sparse-checkout set (--stdin | <patterns>)"),
NULL
};
static struct sparse_checkout_set_opts {
int use_stdin;
} set_opts;
static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
{
static const char *empty_base = "";
@ -157,10 +166,31 @@ static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
struct pattern_list pl;
int result;
int changed_config = 0;
static struct option builtin_sparse_checkout_set_options[] = {
OPT_BOOL(0, "stdin", &set_opts.use_stdin,
N_("read patterns from standard in")),
OPT_END(),
};
memset(&pl, 0, sizeof(pl));
for (i = 1; i < argc; i++)
add_pattern(argv[i], empty_base, 0, &pl, 0);
argc = parse_options(argc, argv, prefix,
builtin_sparse_checkout_set_options,
builtin_sparse_checkout_set_usage,
PARSE_OPT_KEEP_UNKNOWN);
if (set_opts.use_stdin) {
struct strbuf line = STRBUF_INIT;
while (!strbuf_getline(&line, stdin)) {
char *buf = strbuf_detach(&line, NULL);
add_pattern(buf, empty_base, 0, &pl, 0);
}
} else {
for (i = 0; i < argc; i++)
add_pattern(argv[i], empty_base, 0, &pl, 0);
}
if (!core_apply_sparse_checkout) {
set_config(MODE_ALL_PATTERNS);