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-rw-r--r--run-command.c153
1 files changed, 114 insertions, 39 deletions
diff --git a/run-command.c b/run-command.c
index 3db26b7b0e..ea4d0fb4b1 100644
--- a/run-command.c
+++ b/run-command.c
@@ -2,23 +2,24 @@
#include "run-command.h"
#include "exec-cmd.h"
#include "sigchain.h"
-#include "argv-array.h"
+#include "strvec.h"
#include "thread-utils.h"
#include "strbuf.h"
#include "string-list.h"
#include "quote.h"
+#include "config.h"
void child_process_init(struct child_process *child)
{
memset(child, 0, sizeof(*child));
- argv_array_init(&child->args);
- argv_array_init(&child->env_array);
+ strvec_init(&child->args);
+ strvec_init(&child->env_array);
}
void child_process_clear(struct child_process *child)
{
- argv_array_clear(&child->args);
- argv_array_clear(&child->env_array);
+ strvec_clear(&child->args);
+ strvec_clear(&child->env_array);
}
struct child_to_clean {
@@ -213,15 +214,36 @@ static char *locate_in_PATH(const char *file)
static int exists_in_PATH(const char *file)
{
char *r = locate_in_PATH(file);
+ int found = r != NULL;
free(r);
- return r != NULL;
+ return found;
}
int sane_execvp(const char *file, char * const argv[])
{
+#ifndef GIT_WINDOWS_NATIVE
+ /*
+ * execvp() doesn't return, so we all we can do is tell trace2
+ * what we are about to do and let it leave a hint in the log
+ * (unless of course the execvp() fails).
+ *
+ * we skip this for Windows because the compat layer already
+ * has to emulate the execvp() call anyway.
+ */
+ int exec_id = trace2_exec(file, (const char **)argv);
+#endif
+
if (!execvp(file, argv))
return 0; /* cannot happen ;-) */
+#ifndef GIT_WINDOWS_NATIVE
+ {
+ int ec = errno;
+ trace2_exec_result(exec_id, ec);
+ errno = ec;
+ }
+#endif
+
/*
* When a command can't be found because one of the directories
* listed in $PATH is unsearchable, execvp reports EACCES, but
@@ -242,31 +264,31 @@ int sane_execvp(const char *file, char * const argv[])
return -1;
}
-static const char **prepare_shell_cmd(struct argv_array *out, const char **argv)
+static const char **prepare_shell_cmd(struct strvec *out, const char **argv)
{
if (!argv[0])
BUG("shell command is empty");
if (strcspn(argv[0], "|&;<>()$`\\\"' \t\n*?[#~=%") != strlen(argv[0])) {
#ifndef GIT_WINDOWS_NATIVE
- argv_array_push(out, SHELL_PATH);
+ strvec_push(out, SHELL_PATH);
#else
- argv_array_push(out, "sh");
+ strvec_push(out, "sh");
#endif
- argv_array_push(out, "-c");
+ strvec_push(out, "-c");
/*
* If we have no extra arguments, we do not even need to
* bother with the "$@" magic.
*/
if (!argv[1])
- argv_array_push(out, argv[0]);
+ strvec_push(out, argv[0]);
else
- argv_array_pushf(out, "%s \"$@\"", argv[0]);
+ strvec_pushf(out, "%s \"$@\"", argv[0]);
}
- argv_array_pushv(out, argv);
- return out->argv;
+ strvec_pushv(out, argv);
+ return out->v;
}
#ifndef GIT_WINDOWS_NATIVE
@@ -380,7 +402,7 @@ static void child_err_spew(struct child_process *cmd, struct child_err *cerr)
set_error_routine(old_errfn);
}
-static int prepare_cmd(struct argv_array *out, const struct child_process *cmd)
+static int prepare_cmd(struct strvec *out, const struct child_process *cmd)
{
if (!cmd->argv[0])
BUG("command is empty");
@@ -389,30 +411,29 @@ static int prepare_cmd(struct argv_array *out, const struct child_process *cmd)
* Add SHELL_PATH so in the event exec fails with ENOEXEC we can
* attempt to interpret the command with 'sh'.
*/
- argv_array_push(out, SHELL_PATH);
+ strvec_push(out, SHELL_PATH);
if (cmd->git_cmd) {
- argv_array_push(out, "git");
- argv_array_pushv(out, cmd->argv);
+ prepare_git_cmd(out, cmd->argv);
} else if (cmd->use_shell) {
prepare_shell_cmd(out, cmd->argv);
} else {
- argv_array_pushv(out, cmd->argv);
+ strvec_pushv(out, cmd->argv);
}
/*
- * If there are no '/' characters in the command then perform a path
- * lookup and use the resolved path as the command to exec. If there
- * are '/' characters, we have exec attempt to invoke the command
- * directly.
+ * If there are no dir separator characters in the command then perform
+ * a path lookup and use the resolved path as the command to exec. If
+ * there are dir separator characters, we have exec attempt to invoke
+ * the command directly.
*/
- if (!strchr(out->argv[1], '/')) {
- char *program = locate_in_PATH(out->argv[1]);
+ if (!has_dir_sep(out->v[1])) {
+ char *program = locate_in_PATH(out->v[1]);
if (program) {
- free((char *)out->argv[1]);
- out->argv[1] = program;
+ free((char *)out->v[1]);
+ out->v[1] = program;
} else {
- argv_array_clear(out);
+ strvec_clear(out);
errno = ENOENT;
return -1;
}
@@ -652,9 +673,9 @@ int start_command(struct child_process *cmd)
char *str;
if (!cmd->argv)
- cmd->argv = cmd->args.argv;
+ cmd->argv = cmd->args.v;
if (!cmd->env)
- cmd->env = cmd->env_array.argv;
+ cmd->env = cmd->env_array.v;
/*
* In case of errors we must keep the promise to close FDs
@@ -712,6 +733,7 @@ fail_pipe:
cmd->err = fderr[0];
}
+ trace2_child_start(cmd);
trace_run_command(cmd);
fflush(NULL);
@@ -721,7 +743,7 @@ fail_pipe:
int notify_pipe[2];
int null_fd = -1;
char **childenv;
- struct argv_array argv = ARGV_ARRAY_INIT;
+ struct strvec argv = STRVEC_INIT;
struct child_err cerr;
struct atfork_state as;
@@ -825,10 +847,10 @@ fail_pipe:
* be used in the event exec failed with ENOEXEC at which point
* we will try to interpret the command using 'sh'.
*/
- execve(argv.argv[1], (char *const *) argv.argv + 1,
+ execve(argv.v[1], (char *const *) argv.v + 1,
(char *const *) childenv);
if (errno == ENOEXEC)
- execve(argv.argv[0], (char *const *) argv.argv,
+ execve(argv.v[0], (char *const *) argv.v,
(char *const *) childenv);
if (errno == ENOENT) {
@@ -867,7 +889,7 @@ fail_pipe:
if (null_fd >= 0)
close(null_fd);
- argv_array_clear(&argv);
+ strvec_clear(&argv);
free(childenv);
}
end_of_spawn:
@@ -876,7 +898,7 @@ end_of_spawn:
{
int fhin = 0, fhout = 1, fherr = 2;
const char **sargv = cmd->argv;
- struct argv_array nargv = ARGV_ARRAY_INIT;
+ struct strvec nargv = STRVEC_INIT;
if (cmd->no_stdin)
fhin = open("/dev/null", O_RDWR);
@@ -914,7 +936,7 @@ end_of_spawn:
if (cmd->clean_on_exit && cmd->pid >= 0)
mark_child_for_cleanup(cmd->pid, cmd);
- argv_array_clear(&nargv);
+ strvec_clear(&nargv);
cmd->argv = sargv;
if (fhin != 0)
close(fhin);
@@ -926,6 +948,8 @@ end_of_spawn:
#endif
if (cmd->pid < 0) {
+ trace2_child_exit(cmd, -1);
+
if (need_in)
close_pair(fdin);
else if (cmd->in)
@@ -964,13 +988,16 @@ end_of_spawn:
int finish_command(struct child_process *cmd)
{
int ret = wait_or_whine(cmd->pid, cmd->argv[0], 0);
+ trace2_child_exit(cmd, ret);
child_process_clear(cmd);
return ret;
}
int finish_command_in_signal(struct child_process *cmd)
{
- return wait_or_whine(cmd->pid, cmd->argv[0], 1);
+ int ret = wait_or_whine(cmd->pid, cmd->argv[0], 1);
+ trace2_child_exit(cmd, ret);
+ return ret;
}
@@ -992,8 +1019,19 @@ int run_command_v_opt(const char **argv, int opt)
return run_command_v_opt_cd_env(argv, opt, NULL, NULL);
}
+int run_command_v_opt_tr2(const char **argv, int opt, const char *tr2_class)
+{
+ return run_command_v_opt_cd_env_tr2(argv, opt, NULL, NULL, tr2_class);
+}
+
int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const char *const *env)
{
+ return run_command_v_opt_cd_env_tr2(argv, opt, dir, env, NULL);
+}
+
+int run_command_v_opt_cd_env_tr2(const char **argv, int opt, const char *dir,
+ const char *const *env, const char *tr2_class)
+{
struct child_process cmd = CHILD_PROCESS_INIT;
cmd.argv = argv;
cmd.no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0;
@@ -1002,8 +1040,10 @@ int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const
cmd.silent_exec_failure = opt & RUN_SILENT_EXEC_FAILURE ? 1 : 0;
cmd.use_shell = opt & RUN_USING_SHELL ? 1 : 0;
cmd.clean_on_exit = opt & RUN_CLEAN_ON_EXIT ? 1 : 0;
+ cmd.wait_after_clean = opt & RUN_WAIT_AFTER_CLEAN ? 1 : 0;
cmd.dir = dir;
cmd.env = env;
+ cmd.trace2_child_class = tr2_class;
return run_command(&cmd);
}
@@ -1313,12 +1353,13 @@ int run_hook_ve(const char *const *env, const char *name, va_list args)
if (!p)
return 0;
- argv_array_push(&hook.args, p);
+ strvec_push(&hook.args, p);
while ((p = va_arg(args, const char *)))
- argv_array_push(&hook.args, p);
+ strvec_push(&hook.args, p);
hook.env = env;
hook.no_stdin = 1;
hook.stdout_to_stderr = 1;
+ hook.trace2_hook_name = name;
return run_command(&hook);
}
@@ -1807,3 +1848,37 @@ int run_processes_parallel(int n,
pp_cleanup(&pp);
return 0;
}
+
+int run_processes_parallel_tr2(int n, get_next_task_fn get_next_task,
+ start_failure_fn start_failure,
+ task_finished_fn task_finished, void *pp_cb,
+ const char *tr2_category, const char *tr2_label)
+{
+ int result;
+
+ trace2_region_enter_printf(tr2_category, tr2_label, NULL, "max:%d",
+ ((n < 1) ? online_cpus() : n));
+
+ result = run_processes_parallel(n, get_next_task, start_failure,
+ task_finished, pp_cb);
+
+ trace2_region_leave(tr2_category, tr2_label, NULL);
+
+ return result;
+}
+
+int run_auto_maintenance(int quiet)
+{
+ int enabled;
+ struct child_process maint = CHILD_PROCESS_INIT;
+
+ if (!git_config_get_bool("maintenance.auto", &enabled) &&
+ !enabled)
+ return 0;
+
+ maint.git_cmd = 1;
+ strvec_pushl(&maint.args, "maintenance", "run", "--auto", NULL);
+ strvec_push(&maint.args, quiet ? "--quiet" : "--no-quiet");
+
+ return run_command(&maint);
+}