git add: rework the logic to warn "git add <pathspec>..." default change

diff --git a/run-command.c b/run-command.c
index 3b982e4d55274ebe87c5751fa198bee53e371d9b..07e27ff4c829bf4e5dffbc61ac4f86f757e121c4 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -226,7 +226,7 @@ static inline void set_cloexec(int fd)
                fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
 }
 
-static int wait_or_whine(pid_t pid, const char *argv0, int silent_exec_failure)
+static int wait_or_whine(pid_t pid, const char *argv0)
 {
        int status, code = -1;
        pid_t waiting;
@@ -242,13 +242,14 @@ static int wait_or_whine(pid_t pid, const char *argv0, int silent_exec_failure)
                error("waitpid is confused (%s)", argv0);
        } else if (WIFSIGNALED(status)) {
                code = WTERMSIG(status);
-               error("%s died of signal %d", argv0, code);
+               if (code != SIGINT && code != SIGQUIT)
+                       error("%s died of signal %d", argv0, code);
                /*
                 * This return value is chosen so that code & 0xff
                 * mimics the exit code that a POSIX shell would report for
                 * a program that died from this signal.
                 */
-               code -= 128;
+               code += 128;
        } else if (WIFEXITED(status)) {
                code = WEXITSTATUS(status);
                /*
@@ -273,6 +274,7 @@ int start_command(struct child_process *cmd)
        int need_in, need_out, need_err;
        int fdin[2], fdout[2], fderr[2];
        int failed_errno = failed_errno;
+       char *str;
 
        /*
         * In case of errors we must keep the promise to close FDs
@@ -285,6 +287,7 @@ int start_command(struct child_process *cmd)
                        failed_errno = errno;
                        if (cmd->out > 0)
                                close(cmd->out);
+                       str = "standard input";
                        goto fail_pipe;
                }
                cmd->in = fdin[1];
@@ -300,6 +303,7 @@ int start_command(struct child_process *cmd)
                                close_pair(fdin);
                        else if (cmd->in)
                                close(cmd->in);
+                       str = "standard output";
                        goto fail_pipe;
                }
                cmd->out = fdout[0];
@@ -317,9 +321,10 @@ int start_command(struct child_process *cmd)
                                close_pair(fdout);
                        else if (cmd->out)
                                close(cmd->out);
+                       str = "standard error";
 fail_pipe:
-                       error("cannot create pipe for %s: %s",
-                               cmd->argv[0], strerror(failed_errno));
+                       error("cannot create %s pipe for %s: %s",
+                               str, cmd->argv[0], strerror(failed_errno));
                        errno = failed_errno;
                        return -1;
                }
@@ -432,8 +437,7 @@ int start_command(struct child_process *cmd)
                 * At this point we know that fork() succeeded, but execvp()
                 * failed. Errors have been reported to our stderr.
                 */
-               wait_or_whine(cmd->pid, cmd->argv[0],
-                             cmd->silent_exec_failure);
+               wait_or_whine(cmd->pid, cmd->argv[0]);
                failed_errno = errno;
                cmd->pid = -1;
        }
@@ -538,7 +542,7 @@ int start_command(struct child_process *cmd)
 
 int finish_command(struct child_process *cmd)
 {
-       return wait_or_whine(cmd->pid, cmd->argv[0], cmd->silent_exec_failure);
+       return wait_or_whine(cmd->pid, cmd->argv[0]);
 }
 
 int run_command(struct child_process *cmd)
@@ -725,7 +729,7 @@ int start_async(struct async *async)
 int finish_async(struct async *async)
 {
 #ifdef NO_PTHREADS
-       return wait_or_whine(async->pid, "child process", 0);
+       return wait_or_whine(async->pid, "child process");
 #else
        void *ret = (void *)(intptr_t)(-1);
 
@@ -735,6 +739,15 @@ int finish_async(struct async *async)
 #endif
 }
 
+char *find_hook(const char *name)
+{
+       char *path = git_path("hooks/%s", name);
+       if (access(path, X_OK) < 0)
+               path = NULL;
+
+       return path;
+}
+
 int run_hook(const char *index_file, const char *name, ...)
 {
        struct child_process hook;
@@ -744,11 +757,13 @@ int run_hook(const char *index_file, const char *name, ...)
        va_list args;
        int ret;
 
-       if (access(git_path("hooks/%s", name), X_OK) < 0)
+       p = find_hook(name);
+       if (!p)
                return 0;
 
+       argv_array_push(&argv, p);
+
        va_start(args, name);
-       argv_array_push(&argv, git_path("hooks/%s", name));
        while ((p = va_arg(args, const char *)))
                argv_array_push(&argv, p);
        va_end(args);