projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| b1bf95bb JW |
1 | #include "cache.h" |
| 2 | #include "run-command.h" | |
| 3 | #include <sys/wait.h> | |
| 77cb17e9 | 4 | #include "exec_cmd.h" |
| b1bf95bb | 5 | |
| 9201c707 | 6 | int run_command_v_opt(int argc, const char **argv, int flags) |
| b1bf95bb JW |
7 | { |
| 8 | pid_t pid = fork(); | |
| 9 | ||
| 10 | if (pid < 0) | |
| 11 | return -ERR_RUN_COMMAND_FORK; | |
| 12 | if (!pid) { | |
| 128aed68 DB |
13 | if (flags & RUN_COMMAND_NO_STDIO) { |
| 14 | int fd = open("/dev/null", O_RDWR); | |
| 15 | dup2(fd, 0); | |
| 16 | dup2(fd, 1); | |
| 77cb17e9 MO |
17 | close(fd); |
| 18 | } | |
| 19 | if (flags & RUN_GIT_CMD) { | |
| 20 | execv_git_cmd(argv); | |
| 21 | } else { | |
| 22 | execvp(argv[0], (char *const*) argv); | |
| 128aed68 | 23 | } |
| 19614330 | 24 | die("exec %s failed.", argv[0]); |
| b1bf95bb JW |
25 | } |
| 26 | for (;;) { | |
| 27 | int status, code; | |
| 28 | int retval = waitpid(pid, &status, 0); | |
| 29 | ||
| 30 | if (retval < 0) { | |
| 31 | if (errno == EINTR) | |
| 32 | continue; | |
| 33 | error("waitpid failed (%s)", strerror(retval)); | |
| 34 | return -ERR_RUN_COMMAND_WAITPID; | |
| 35 | } | |
| 36 | if (retval != pid) | |
| 37 | return -ERR_RUN_COMMAND_WAITPID_WRONG_PID; | |
| 38 | if (WIFSIGNALED(status)) | |
| 39 | return -ERR_RUN_COMMAND_WAITPID_SIGNAL; | |
| 40 | ||
| 41 | if (!WIFEXITED(status)) | |
| 42 | return -ERR_RUN_COMMAND_WAITPID_NOEXIT; | |
| 43 | code = WEXITSTATUS(status); | |
| 44 | if (code) | |
| 45 | return -code; | |
| 46 | return 0; | |
| 47 | } | |
| 48 | } | |
| 49 | ||
| 9201c707 | 50 | int run_command_v(int argc, const char **argv) |
| 128aed68 DB |
51 | { |
| 52 | return run_command_v_opt(argc, argv, 0); | |
| 53 | } | |
| 54 | ||
| b1bf95bb JW |
55 | int run_command(const char *cmd, ...) |
| 56 | { | |
| 57 | int argc; | |
| 9201c707 | 58 | const char *argv[MAX_RUN_COMMAND_ARGS]; |
| b1bf95bb JW |
59 | const char *arg; |
| 60 | va_list param; | |
| 61 | ||
| b1bf95bb | 62 | va_start(param, cmd); |
| 19614330 | 63 | argv[0] = (char*) cmd; |
| b1bf95bb JW |
64 | argc = 1; |
| 65 | while (argc < MAX_RUN_COMMAND_ARGS) { | |
| 66 | arg = argv[argc++] = va_arg(param, char *); | |
| 67 | if (!arg) | |
| 68 | break; | |
| 69 | } | |
| 70 | va_end(param); | |
| 71 | if (MAX_RUN_COMMAND_ARGS <= argc) | |
| 72 | return error("too many args to run %s", cmd); | |
| 128aed68 | 73 | return run_command_v_opt(argc, argv, 0); |
| b1bf95bb | 74 | } |