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/*
* test-run-command.c: test run command API.
*
* (C) 2009 Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
*
* This code is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "git-compat-util.h"
#include "run-command.h"
#include "argv-array.h"
#include "strbuf.h"
#include "gettext.h"
#include "parse-options.h"
static int number_callbacks;
static int parallel_next(struct child_process *cp,
struct strbuf *err,
void *cb,
void **task_cb)
{
struct child_process *d = cb;
if (number_callbacks >= 4)
return 0;
argv_array_pushv(&cp->args, d->argv);
strbuf_addstr(err, "preloaded output of a child\n");
number_callbacks++;
return 1;
}
static int no_job(struct child_process *cp,
struct strbuf *err,
void *cb,
void **task_cb)
{
strbuf_addstr(err, "no further jobs available\n");
return 0;
}
static int task_finished(int result,
struct strbuf *err,
void *pp_cb,
void *pp_task_cb)
{
strbuf_addstr(err, "asking for a quick stop\n");
return 1;
}
static uint64_t my_random_next = 1234;
static uint64_t my_random(void)
{
uint64_t res = my_random_next;
my_random_next = my_random_next * 1103515245 + 12345;
return res;
}
static int quote_stress_test(int argc, const char **argv)
{
/*
* We are running a quote-stress test.
* spawn a subprocess that runs quote-stress with a
* special option that echoes back the arguments that
* were passed in.
*/
char special[] = ".?*\\^_\"'`{}()[]<>@~&+:;$%"; // \t\r\n\a";
int i, j, k, trials = 100, skip = 0;
struct strbuf out = STRBUF_INIT;
struct argv_array args = ARGV_ARRAY_INIT;
struct option options[] = {
OPT_INTEGER('n', "trials", &trials, "Number of trials"),
OPT_INTEGER('s', "skip", &skip, "Skip <n> trials"),
OPT_END()
};
const char * const usage[] = {
"test-run-command quote-stress-test <options>",
NULL
};
argc = parse_options(argc, argv, NULL, options, usage, 0);
for (i = 0; i < trials; i++) {
struct child_process cp = CHILD_PROCESS_INIT;
size_t arg_count, arg_offset;
int ret = 0;
argv_array_clear(&args);
argv_array_pushl(&args, "test-run-command",
"quote-echo", NULL);
arg_offset = args.argc;
if (argc > 0) {
trials = 1;
arg_count = argc;
for (j = 0; j < arg_count; j++)
argv_array_push(&args, argv[j]);
} else {
arg_count = 1 + (my_random() % 5);
for (j = 0; j < arg_count; j++) {
char buf[20];
size_t min_len = 1;
size_t arg_len = min_len +
(my_random() % (ARRAY_SIZE(buf) - min_len));
for (k = 0; k < arg_len; k++)
buf[k] = special[my_random() %
ARRAY_SIZE(special)];
buf[arg_len] = '\0';
argv_array_push(&args, buf);
}
}
if (i < skip)
continue;
cp.argv = args.argv;
strbuf_reset(&out);
if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) < 0)
return error("Failed to spawn child process");
for (j = 0, k = 0; j < arg_count; j++) {
const char *arg = args.argv[j + arg_offset];
if (strcmp(arg, out.buf + k))
ret = error("incorrectly quoted arg: '%s', "
"echoed back as '%s'",
arg, out.buf + k);
k += strlen(out.buf + k) + 1;
}
if (k != out.len)
ret = error("got %d bytes, but consumed only %d",
(int)out.len, (int)k);
if (ret) {
fprintf(stderr, "Trial #%d failed. Arguments:\n", i);
for (j = 0; j < arg_count; j++)
fprintf(stderr, "arg #%d: '%s'\n",
(int)j, args.argv[j + arg_offset]);
strbuf_release(&out);
argv_array_clear(&args);
return ret;
}
if (i && (i % 100) == 0)
fprintf(stderr, "Trials completed: %d\n", (int)i);
}
strbuf_release(&out);
argv_array_clear(&args);
return 0;
}
static int quote_echo(int argc, const char **argv)
{
while (argc > 1) {
fwrite(argv[1], strlen(argv[1]), 1, stdout);
fputc('\0', stdout);
argv++;
argc--;
}
return 0;
}
int cmd_main(int argc, const char **argv)
{
struct child_process proc = CHILD_PROCESS_INIT;
int jobs;
if (argc >= 2 && !strcmp(argv[1], "quote-stress-test"))
return !!quote_stress_test(argc - 1, argv + 1);
if (argc >= 2 && !strcmp(argv[1], "quote-echo"))
return !!quote_echo(argc - 1, argv + 1);
if (argc < 3)
return 1;
proc.argv = (const char **)argv + 2;
if (!strcmp(argv[1], "start-command-ENOENT")) {
if (start_command(&proc) < 0 && errno == ENOENT)
return 0;
fprintf(stderr, "FAIL %s\n", argv[1]);
return 1;
}
if (!strcmp(argv[1], "run-command"))
exit(run_command(&proc));
jobs = atoi(argv[2]);
proc.argv = (const char **)argv + 3;
if (!strcmp(argv[1], "run-command-parallel"))
exit(run_processes_parallel(jobs, parallel_next,
NULL, NULL, &proc));
if (!strcmp(argv[1], "run-command-abort"))
exit(run_processes_parallel(jobs, parallel_next,
NULL, task_finished, &proc));
if (!strcmp(argv[1], "run-command-no-jobs"))
exit(run_processes_parallel(jobs, no_job,
NULL, task_finished, &proc));
fprintf(stderr, "check usage\n");
return 1;
}
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