diff format documentation: describe raw combined diff format

diff --git a/builtin-ls-files.c b/builtin-ls-files.c
index ad8c41e7310032c7a868ecb6a87e542af799c361..4e1d5af634a1280288d7c8110571f1136343bf3e 100644 (file)
--- a/builtin-ls-files.c
+++ b/builtin-ls-files.c
@@ -5,8 +5,6 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
-#include <fnmatch.h>
-
 #include "cache.h"
 #include "quote.h"
 #include "dir.h"
@@ -325,7 +323,7 @@ static const char ls_files_usage[] =
 int cmd_ls_files(int argc, const char **argv, const char *prefix)
 {
        int i;
-       int exc_given = 0;
+       int exc_given = 0, require_work_tree = 0;
        struct dir_struct dir;
 
        memset(&dir, 0, sizeof(dir));
@@ -365,14 +363,17 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                }
                if (!strcmp(arg, "-m") || !strcmp(arg, "--modified")) {
                        show_modified = 1;
+                       require_work_tree = 1;
                        continue;
                }
                if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
                        show_others = 1;
+                       require_work_tree = 1;
                        continue;
                }
                if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
                        dir.show_ignored = 1;
+                       require_work_tree = 1;
                        continue;
                }
                if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
@@ -381,6 +382,7 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                }
                if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
                        show_killed = 1;
+                       require_work_tree = 1;
                        continue;
                }
                if (!strcmp(arg, "--directory")) {
@@ -404,7 +406,7 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                        add_exclude(argv[++i], "", 0, &dir.exclude_list[EXC_CMDL]);
                        continue;
                }
-               if (!strncmp(arg, "--exclude=", 10)) {
+               if (!prefixcmp(arg, "--exclude=")) {
                        exc_given = 1;
                        add_exclude(arg+10, "", 0, &dir.exclude_list[EXC_CMDL]);
                        continue;
@@ -414,12 +416,12 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                        add_excludes_from_file(&dir, argv[++i]);
                        continue;
                }
-               if (!strncmp(arg, "--exclude-from=", 15)) {
+               if (!prefixcmp(arg, "--exclude-from=")) {
                        exc_given = 1;
                        add_excludes_from_file(&dir, arg+15);
                        continue;
                }
-               if (!strncmp(arg, "--exclude-per-directory=", 24)) {
+               if (!prefixcmp(arg, "--exclude-per-directory=")) {
                        exc_given = 1;
                        dir.exclude_per_dir = arg + 24;
                        continue;
@@ -432,7 +434,7 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                        error_unmatch = 1;
                        continue;
                }
-               if (!strncmp(arg, "--abbrev=", 9)) {
+               if (!prefixcmp(arg, "--abbrev=")) {
                        abbrev = strtoul(arg+9, NULL, 10);
                        if (abbrev && abbrev < MINIMUM_ABBREV)
                                abbrev = MINIMUM_ABBREV;
@@ -449,6 +451,10 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                break;
        }
 
+       if (require_work_tree &&
+                       (is_bare_repository() || is_inside_git_dir()))
+               die("This operation must be run in a work tree");
+
        pathspec = get_pathspec(prefix, argv + i);
 
        /* Verify that the pathspec matches the prefix */
@@ -487,10 +493,14 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
                for (num = 0; pathspec[num]; num++) {
                        if (ps_matched[num])
                                continue;
-                       error("pathspec '%s' did not match any.",
+                       error("pathspec '%s' did not match any file(s) known to git.",
                              pathspec[num] + prefix_offset);
                        errors++;
                }
+
+               if (errors)
+                       fprintf(stderr, "Did you forget to 'git add'?\n");
+
                return errors ? 1 : 0;
        }