checkout: allow dwim for branch creation for "git checkout $branch --"

diff --git a/git.c b/git.c
index 39ba6b14618389bc9312df43a376b52f9a21d881..88eef5a7cc6d36f6e17f4855945116dd6f1b0681 100644 (file)
--- a/git.c
+++ b/git.c
@@ -4,6 +4,7 @@
 #include "help.h"
 #include "quote.h"
 #include "run-command.h"
+#include "commit.h"
 
 const char git_usage_string[] =
        "git [--version] [--help] [-c name=value]\n"
@@ -13,7 +14,9 @@ const char git_usage_string[] =
        "           <command> [<args>]";
 
 const char git_more_info_string[] =
-       N_("See 'git help <command>' for more information on a specific command.");
+       N_("'git help -a' and 'git help -g' lists available subcommands and some\n"
+          "concept guides. See 'git help <command>' or 'git help <concept>'\n"
+          "to read about a specific subcommand or concept.");
 
 static struct startup_info git_startup_info;
 static int use_pager = -1;
@@ -125,6 +128,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        static char git_dir[PATH_MAX+1];
                        is_bare_repository_cfg = 1;
                        setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0);
+                       setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
                        if (envchanged)
                                *envchanged = 1;
                } else if (!strcmp(cmd, "-c")) {
@@ -143,6 +147,12 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1);
                        if (envchanged)
                                *envchanged = 1;
+               } else if (!strcmp(cmd, "--shallow-file")) {
+                       (*argv)++;
+                       (*argc)--;
+                       set_alternate_shallow_file((*argv)[0]);
+                       if (envchanged)
+                               *envchanged = 1;
                } else {
                        fprintf(stderr, "Unknown option: %s\n", cmd);
                        usage(git_usage_string);