[PATCH v2 2/2] git add: -u/-A now affects the entire working tree

[Junio C Hamano <gitster@pobox.com>]

As promised in 0fa2eb530fb7 (add: warn when -u or -A is used without
pathspec, 2013-01-28), in Git 2.0, "git add -u/-A" that is run
without pathspec in a subdirectory updates all updated paths in the
entire working tree, not just the current directory and its
subdirectories.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Documentation/git-add.txt | 24 ++++++++----------------
 builtin/add.c             | 47 ++++-------------------------------------------
 2 files changed, 12 insertions(+), 59 deletions(-)

diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt
index b849b78..02b99cb 100644
--- a/Documentation/git-add.txt
+++ b/Documentation/git-add.txt
@@ -104,14 +104,10 @@ apply to the index. See EDITING PATCHES below.
 	<pathspec>.  This removes as well as modifies index entries to
 	match the working tree, but adds no new files.
 +
-If no <pathspec> is given when `-u` option is used, Git used
-to update all tracked files in the current directory and its
-subdirectories. We would eventually want to change this to operate
-on the entire working tree, not limiting it to the current
-directory, to make it consistent with `git commit -a` and other
-commands.  In order to avoid harming users who are used to the old
-default, Git *errors out* when no <pathspec> is given to train their
-fingers to explicitly type `git add -u .` when they mean it.
+If no <pathspec> is given when `-u` option is used, all
+tracked files in the entire working tree are updated (old versions
+of Git used to limit the update to the current directory and its
+subdirectories).
 
 -A::
 --all::
@@ -120,14 +116,10 @@ fingers to explicitly type `git add -u .` when they mean it.
 	entry.	This adds, modifies, and removes index entries to
 	match the working tree.
 +
-If no <pathspec> is given when `-A` option is used, Git used
-to update all files in the current directory and its
-subdirectories. We would eventually want to change this to operate
-on the entire working tree, not limiting it to the current
-directory, to make it consistent with `git commit -a` and other
-commands.  In order to avoid harming users who are used to the old
-default, Git *errors out* when no <pathspec> is given to train their
-fingers to explicitly type `git add -A .` when they mean it.
+If no <pathspec> is given when `-A` option is used, all
+files in the entire working tree are updated (old versions
+of Git used to limit the update to the current directory and its
+subdirectories).
 
 -N::
 --intent-to-add::
diff --git a/builtin/add.c b/builtin/add.c
index 4b9d57c..6cd063f 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -321,33 +321,6 @@ static int add_files(struct dir_struct *dir, int flags)
 	return exit_status;
 }
 
-static void die_on_pathless_add(const char *option_name, const char *short_name)
-{
-	/*
-	 * To be consistent with "git add -p" and most Git
-	 * commands, we should default to being tree-wide, but
-	 * this is not the original behavior and can't be
-	 * changed until users trained themselves not to type
-	 * "git add -u" or "git add -A". In the previous release,
-	 * we kept the old behavior but gave a big warning.
-	 */
-	die(_("The behavior of 'git add %s (or %s)' with no path argument from a\n"
-	      "subdirectory of the tree will change in Git 2.0 and should not be "
-	      "used anymore.\n"
-	      "To add content for the whole tree, run:\n"
-	      "\n"
-	      "  git add %s :/\n"
-	      "  (or git add %s :/)\n"
-	      "\n"
-	      "To restrict the command to the current directory, run:\n"
-	      "\n"
-	      "  git add %s .\n"
-	      "  (or git add %s .)"),
-		option_name, short_name,
-		option_name, short_name,
-		option_name, short_name);
-}
-
 int cmd_add(int argc, const char **argv, const char *prefix)
 {
 	int exit_status = 0;
@@ -358,8 +331,6 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 	int add_new_files;
 	int require_pathspec;
 	char *seen = NULL;
-	const char *option_with_implicit_dot = NULL;
-	const char *short_option_with_implicit_dot = NULL;
 
 	git_config(add_config, NULL);
 
@@ -379,21 +350,11 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		die(_("-A and -u are mutually incompatible"));
 	if (!show_only && ignore_missing)
 		die(_("Option --ignore-missing can only be used together with --dry-run"));
-	if (addremove) {
-		option_with_implicit_dot = "--all";
-		short_option_with_implicit_dot = "-A";
-	}
-	if (take_worktree_changes) {
-		option_with_implicit_dot = "--update";
-		short_option_with_implicit_dot = "-u";
-	}
-	if (option_with_implicit_dot && !argc) {
-		static const char *here[2] = { ".", NULL };
-		if (prefix)
-			die_on_pathless_add(option_with_implicit_dot,
-					    short_option_with_implicit_dot);
+
+	if ((addremove || take_worktree_changes) && !argc) {
+		static const char *whole[2] = { ":/", NULL };
 		argc = 1;
-		argv = here;
+		argv = whole;
 	}
 
 	add_new_files = !take_worktree_changes && !refresh_only;
-- 
1.8.2-rc3-203-gc9aaab5