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Revision dbaa6bdce22914843e956e36d41d328547514342 authored by Junio C Hamano on 31 October 2016, 20:15:21 UTC, committed by Junio C Hamano on 31 October 2016, 20:15:21 UTC 
Merge branch 'ls/filter-process'
 
The smudge/clean filter API expect an external process is spawned
to filter the contents for each path that has a filter defined.  A
new type of "process" filter API has been added to allow the first
request to run the filter for a path to spawn a single process, and
all filtering need is served by this single process for multiple
paths, reducing the process creation overhead.

* ls/filter-process:
  contrib/long-running-filter: add long running filter example
  convert: add filter.<driver>.process option
  convert: prepare filter.<driver>.process option
  convert: make apply_filter() adhere to standard Git error handling
  pkt-line: add functions to read/write flush terminated packet streams
  pkt-line: add packet_write_gently()
  pkt-line: add packet_flush_gently()
  pkt-line: add packet_write_fmt_gently()
  pkt-line: extract set_packet_header()
  pkt-line: rename packet_write() to packet_write_fmt()
  run-command: add clean_on_exit_handler
  run-command: move check_pipe() from write_or_die to run_command
  convert: modernize tests
  convert: quote filter names in error messages
2 parent s 906d690 + 0f71fa2
Raw File
argv-array.c 
#include "cache.h"
#include "argv-array.h"
#include "strbuf.h"

const char *empty_argv[] = { NULL };

void argv_array_init(struct argv_array *array)
{
	array->argv = empty_argv;
	array->argc = 0;
	array->alloc = 0;
}

static void argv_array_push_nodup(struct argv_array *array, const char *value)
{
	if (array->argv == empty_argv)
		array->argv = NULL;

	ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
	array->argv[array->argc++] = value;
	array->argv[array->argc] = NULL;
}

void argv_array_push(struct argv_array *array, const char *value)
{
	argv_array_push_nodup(array, xstrdup(value));
}

void argv_array_pushf(struct argv_array *array, const char *fmt, ...)
{
	va_list ap;
	struct strbuf v = STRBUF_INIT;

	va_start(ap, fmt);
	strbuf_vaddf(&v, fmt, ap);
	va_end(ap);

	argv_array_push_nodup(array, strbuf_detach(&v, NULL));
}

void argv_array_pushl(struct argv_array *array, ...)
{
	va_list ap;
	const char *arg;

	va_start(ap, array);
	while((arg = va_arg(ap, const char *)))
		argv_array_push(array, arg);
	va_end(ap);
}

void argv_array_pushv(struct argv_array *array, const char **argv)
{
	for (; *argv; argv++)
		argv_array_push(array, *argv);
}

void argv_array_pop(struct argv_array *array)
{
	if (!array->argc)
		return;
	free((char *)array->argv[array->argc - 1]);
	array->argv[array->argc - 1] = NULL;
	array->argc--;
}

void argv_array_clear(struct argv_array *array)
{
	if (array->argv != empty_argv) {
		int i;
		for (i = 0; i < array->argc; i++)
			free((char *)array->argv[i]);
		free(array->argv);
	}
	argv_array_init(array);
}

const char **argv_array_detach(struct argv_array *array)
{
	if (array->argv == empty_argv)
		return xcalloc(1, sizeof(const char *));
	else {
		const char **ret = array->argv;
		argv_array_init(array);
		return ret;
	}
}
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