Merge branch 'tb/core-eol-fix' into maint

diff --git a/run-command.c b/run-command.c
index cdf01845790849f863aef4195a68e12fa19ca543..2d6628012d7f3dc555d9bf385e990ac2c4ec6885 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -160,50 +160,41 @@ int sane_execvp(const char *file, char * const argv[])
        return -1;
 }
 
-static const char **prepare_shell_cmd(const char **argv)
+static const char **prepare_shell_cmd(struct argv_array *out, const char **argv)
 {
-       int argc, nargc = 0;
-       const char **nargv;
-
-       for (argc = 0; argv[argc]; argc++)
-               ; /* just counting */
-       /* +1 for NULL, +3 for "sh -c" plus extra $0 */
-       nargv = xmalloc(sizeof(*nargv) * (argc + 1 + 3));
-
-       if (argc < 1)
+       if (!argv[0])
                die("BUG: shell command is empty");
 
        if (strcspn(argv[0], "|&;<>()$`\\\"' \t\n*?[#~=%") != strlen(argv[0])) {
 #ifndef GIT_WINDOWS_NATIVE
-               nargv[nargc++] = SHELL_PATH;
+               argv_array_push(out, SHELL_PATH);
 #else
-               nargv[nargc++] = "sh";
+               argv_array_push(out, "sh");
 #endif
-               nargv[nargc++] = "-c";
-
-               if (argc < 2)
-                       nargv[nargc++] = argv[0];
-               else {
-                       struct strbuf arg0 = STRBUF_INIT;
-                       strbuf_addf(&arg0, "%s \"$@\"", argv[0]);
-                       nargv[nargc++] = strbuf_detach(&arg0, NULL);
-               }
-       }
+               argv_array_push(out, "-c");
 
-       for (argc = 0; argv[argc]; argc++)
-               nargv[nargc++] = argv[argc];
-       nargv[nargc] = NULL;
+               /*
+                * If we have no extra arguments, we do not even need to
+                * bother with the "$@" magic.
+                */
+               if (!argv[1])
+                       argv_array_push(out, argv[0]);
+               else
+                       argv_array_pushf(out, "%s \"$@\"", argv[0]);
+       }
 
-       return nargv;
+       argv_array_pushv(out, argv);
+       return out->argv;
 }
 
 #ifndef GIT_WINDOWS_NATIVE
 static int execv_shell_cmd(const char **argv)
 {
-       const char **nargv = prepare_shell_cmd(argv);
-       trace_argv_printf(nargv, "trace: exec:");
-       sane_execvp(nargv[0], (char **)nargv);
-       free(nargv);
+       struct argv_array nargv = ARGV_ARRAY_INIT;
+       prepare_shell_cmd(&nargv, argv);
+       trace_argv_printf(nargv.argv, "trace: exec:");
+       sane_execvp(nargv.argv[0], (char **)nargv.argv);
+       argv_array_clear(&nargv);
        return -1;
 }
 #endif
@@ -457,6 +448,7 @@ int start_command(struct child_process *cmd)
 {
        int fhin = 0, fhout = 1, fherr = 2;
        const char **sargv = cmd->argv;
+       struct argv_array nargv = ARGV_ARRAY_INIT;
 
        if (cmd->no_stdin)
                fhin = open("/dev/null", O_RDWR);
@@ -482,9 +474,9 @@ int start_command(struct child_process *cmd)
                fhout = dup(cmd->out);
 
        if (cmd->git_cmd)
-               cmd->argv = prepare_git_cmd(cmd->argv);
+               cmd->argv = prepare_git_cmd(&nargv, cmd->argv);
        else if (cmd->use_shell)
-               cmd->argv = prepare_shell_cmd(cmd->argv);
+               cmd->argv = prepare_shell_cmd(&nargv, cmd->argv);
 
        cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, (char**) cmd->env,
                        cmd->dir, fhin, fhout, fherr);
@@ -494,9 +486,7 @@ int start_command(struct child_process *cmd)
        if (cmd->clean_on_exit && cmd->pid >= 0)
                mark_child_for_cleanup(cmd->pid);
 
-       if (cmd->git_cmd)
-               free(cmd->argv);
-
+       argv_array_clear(&nargv);
        cmd->argv = sargv;
        if (fhin != 0)
                close(fhin);
@@ -600,6 +590,16 @@ static void *run_thread(void *data)
        struct async *async = data;
        intptr_t ret;
 
+       if (async->isolate_sigpipe) {
+               sigset_t mask;
+               sigemptyset(&mask);
+               sigaddset(&mask, SIGPIPE);
+               if (pthread_sigmask(SIG_BLOCK, &mask, NULL) < 0) {
+                       ret = error("unable to block SIGPIPE in async thread");
+                       return (void *)ret;
+               }
+       }
+
        pthread_setspecific(async_key, async);
        ret = async->proc(async->proc_in, async->proc_out, async->data);
        return (void *)ret;
@@ -635,6 +635,11 @@ int in_async(void)
        return !pthread_equal(main_thread, pthread_self());
 }
 
+void NORETURN async_exit(int code)
+{
+       pthread_exit((void *)(intptr_t)code);
+}
+
 #else
 
 static struct {
@@ -680,6 +685,11 @@ int in_async(void)
        return process_is_async;
 }
 
+void NORETURN async_exit(int code)
+{
+       exit(code);
+}
+
 #endif
 
 int start_async(struct async *async)
@@ -902,35 +912,18 @@ struct parallel_processes {
        struct strbuf buffered_output; /* of finished children */
 };
 
-static int default_start_failure(struct child_process *cp,
-                                struct strbuf *err,
+static int default_start_failure(struct strbuf *err,
                                 void *pp_cb,
                                 void *pp_task_cb)
 {
-       int i;
-
-       strbuf_addstr(err, "Starting a child failed:");
-       for (i = 0; cp->argv[i]; i++)
-               strbuf_addf(err, " %s", cp->argv[i]);
-
        return 0;
 }
 
 static int default_task_finished(int result,
-                                struct child_process *cp,
                                 struct strbuf *err,
                                 void *pp_cb,
                                 void *pp_task_cb)
 {
-       int i;
-
-       if (!result)
-               return 0;
-
-       strbuf_addf(err, "A child failed with return code %d:", result);
-       for (i = 0; cp->argv[i]; i++)
-               strbuf_addf(err, " %s", cp->argv[i]);
-
        return 0;
 }
 
@@ -1048,8 +1041,7 @@ static int pp_start_one(struct parallel_processes *pp)
        pp->children[i].process.no_stdin = 1;
 
        if (start_command(&pp->children[i].process)) {
-               code = pp->start_failure(&pp->children[i].process,
-                                        &pp->children[i].err,
+               code = pp->start_failure(&pp->children[i].err,
                                         pp->data,
                                         &pp->children[i].data);
                strbuf_addbuf(&pp->buffered_output, &pp->children[i].err);
@@ -1117,7 +1109,7 @@ static int pp_collect_finished(struct parallel_processes *pp)
 
                code = finish_command(&pp->children[i].process);
 
-               code = pp->task_finished(code, &pp->children[i].process,
+               code = pp->task_finished(code,
                                         &pp->children[i].err, pp->data,
                                         &pp->children[i].data);